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<a href="#nested-classes">Data Structures</a> &#124;
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<div class="headertitle"><div class="title">mcnaughton_yamada_thompson.c File Reference</div></div>
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<p><a href="https://en.wikipedia.org/wiki/Thompson%27s_construction" target="_blank">McNaughton–Yamada–Thompson algorithm</a>
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &lt;assert.h&gt;</code><br />
<code>#include &lt;stdio.h&gt;</code><br />
<code>#include &lt;string.h&gt;</code><br />
<code>#include &lt;stdlib.h&gt;</code><br />
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Include dependency graph for mcnaughton_yamada_thompson.c:</div>
<div class="dyncontent">
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</div><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">for assert() <a href="../../d8/d66/struct_a_s_t_node.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d9/dd9/structtrans_rule.html">transRule</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Definition for a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> state transition rule. <a href="../../d9/dd9/structtrans_rule.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Definition for a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> state. <a href="../../d4/d97/struct_n_f_a_state.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Definition for the <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> itself. <a href="../../d3/dd7/struct_n_f_a.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a12df013d848665fdcdcb01870c322af6"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a12df013d848665fdcdcb01870c322af6">createNode</a> (const char content)</td></tr>
<tr class="memdesc:a12df013d848665fdcdcb01870c322af6"><td class="mdescLeft">&#160;</td><td class="mdescRight">creates and initializes a AST node <br /></td></tr>
<tr class="separator:a12df013d848665fdcdcb01870c322af6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6a97ab2db6392f262b03370689872348"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6a97ab2db6392f262b03370689872348">destroyNode</a> (struct <a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a> *<a class="el" href="../../d5/da1/structnode.html">node</a>)</td></tr>
<tr class="memdesc:a6a97ab2db6392f262b03370689872348"><td class="mdescLeft">&#160;</td><td class="mdescRight">recursively destroys a AST <br /></td></tr>
<tr class="separator:a6a97ab2db6392f262b03370689872348"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae9a5eac7c0d8ac478eb1b97529638fb6"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#ae9a5eac7c0d8ac478eb1b97529638fb6">preProcessing</a> (const char *input)</td></tr>
<tr class="memdesc:ae9a5eac7c0d8ac478eb1b97529638fb6"><td class="mdescLeft">&#160;</td><td class="mdescRight">performs preprocessing on a regex string, making all implicit concatenations explicit <br /></td></tr>
<tr class="separator:ae9a5eac7c0d8ac478eb1b97529638fb6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a496e9b4e45417ac56dac40bbbb769d7a"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a> (const char *input)</td></tr>
<tr class="memdesc:a496e9b4e45417ac56dac40bbbb769d7a"><td class="mdescLeft">&#160;</td><td class="mdescRight">recursively constructs a AST from a preprocessed regex string <br /></td></tr>
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<tr class="memitem:a0b8d037bf2841dede90be41f5fe1ccdc"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="../../d9/dd9/structtrans_rule.html">transRule</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a> (struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *state, char c)</td></tr>
<tr class="memdesc:a0b8d037bf2841dede90be41f5fe1ccdc"><td class="mdescLeft">&#160;</td><td class="mdescRight">creates and initializes a transition rule <br /></td></tr>
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<tr class="memitem:ade1398311f666988b895f41c3e36d70e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#ade1398311f666988b895f41c3e36d70e">destroyRule</a> (struct <a class="el" href="../../d9/dd9/structtrans_rule.html">transRule</a> *rule)</td></tr>
<tr class="memdesc:ade1398311f666988b895f41c3e36d70e"><td class="mdescLeft">&#160;</td><td class="mdescRight">destroys a transition rule object <br /></td></tr>
<tr class="separator:ade1398311f666988b895f41c3e36d70e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa87c20bf2b324829943accce4bbff84a"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aa87c20bf2b324829943accce4bbff84a">createState</a> (void)</td></tr>
<tr class="memdesc:aa87c20bf2b324829943accce4bbff84a"><td class="mdescLeft">&#160;</td><td class="mdescRight">creates and initializes a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> state <br /></td></tr>
<tr class="separator:aa87c20bf2b324829943accce4bbff84a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9a361f55b51ce6d677e907396fbc1652"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a9a361f55b51ce6d677e907396fbc1652">destroyState</a> (struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *state)</td></tr>
<tr class="memdesc:a9a361f55b51ce6d677e907396fbc1652"><td class="mdescLeft">&#160;</td><td class="mdescRight">destroys a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> state <br /></td></tr>
<tr class="separator:a9a361f55b51ce6d677e907396fbc1652"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2491d4e9e630ebb9880260379779cf63"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a2491d4e9e630ebb9880260379779cf63">createNFA</a> (void)</td></tr>
<tr class="memdesc:a2491d4e9e630ebb9880260379779cf63"><td class="mdescLeft">&#160;</td><td class="mdescRight">creates and initializes a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> <br /></td></tr>
<tr class="separator:a2491d4e9e630ebb9880260379779cf63"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a684ed3494e22ee17d7b3e19a4d1fe977"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a684ed3494e22ee17d7b3e19a4d1fe977">destroyNFA</a> (struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *nfa)</td></tr>
<tr class="memdesc:a684ed3494e22ee17d7b3e19a4d1fe977"><td class="mdescLeft">&#160;</td><td class="mdescRight">recursively destroys a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> <br /></td></tr>
<tr class="separator:a684ed3494e22ee17d7b3e19a4d1fe977"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a799974b5bc43a844a200715db21b1124"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a799974b5bc43a844a200715db21b1124">addState</a> (struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *nfa, struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *state)</td></tr>
<tr class="memdesc:a799974b5bc43a844a200715db21b1124"><td class="mdescLeft">&#160;</td><td class="mdescRight">adds a state to a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> <br /></td></tr>
<tr class="separator:a799974b5bc43a844a200715db21b1124"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a4ed0049e15d45e0d75a991fbb6f8963c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a> (struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *nfa, struct <a class="el" href="../../d9/dd9/structtrans_rule.html">transRule</a> *rule, int loc)</td></tr>
<tr class="memdesc:a4ed0049e15d45e0d75a991fbb6f8963c"><td class="mdescLeft">&#160;</td><td class="mdescRight">adds a transition rule to a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> <br /></td></tr>
<tr class="separator:a4ed0049e15d45e0d75a991fbb6f8963c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a86e0f235783b005e4e6e951c9603bbe1"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a86e0f235783b005e4e6e951c9603bbe1">postProcessing</a> (struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *nfa)</td></tr>
<tr class="memdesc:a86e0f235783b005e4e6e951c9603bbe1"><td class="mdescLeft">&#160;</td><td class="mdescRight">performs postprocessing on a compiled <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a>, add circular empty character transition rules where it's needed for the <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> to function correctly <br /></td></tr>
<tr class="separator:a86e0f235783b005e4e6e951c9603bbe1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aebe16fbf12c8ac089501ebcae6f0c050"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aebe16fbf12c8ac089501ebcae6f0c050">transit</a> (struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *nfa, char input)</td></tr>
<tr class="memdesc:aebe16fbf12c8ac089501ebcae6f0c050"><td class="mdescLeft">&#160;</td><td class="mdescRight">moves a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> forward <br /></td></tr>
<tr class="separator:aebe16fbf12c8ac089501ebcae6f0c050"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2dabcd5c410a4b0cac1b4ab378c9dcdc"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a2dabcd5c410a4b0cac1b4ab378c9dcdc">isAccepting</a> (const struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *nfa)</td></tr>
<tr class="memdesc:a2dabcd5c410a4b0cac1b4ab378c9dcdc"><td class="mdescLeft">&#160;</td><td class="mdescRight">determines whether the <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> is currently in its accepting state <br /></td></tr>
<tr class="separator:a2dabcd5c410a4b0cac1b4ab378c9dcdc"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6eaf52853f2b39a1299cc16972a3298e"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6eaf52853f2b39a1299cc16972a3298e">isLiteral</a> (const char ch)</td></tr>
<tr class="memdesc:a6eaf52853f2b39a1299cc16972a3298e"><td class="mdescLeft">&#160;</td><td class="mdescRight">helper function to determine whether a character should be considered a character literal <br /></td></tr>
<tr class="separator:a6eaf52853f2b39a1299cc16972a3298e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aab463320a19667bd604db2405abefd55"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aab463320a19667bd604db2405abefd55">indexOf</a> (const char *str, char key)</td></tr>
<tr class="memdesc:aab463320a19667bd604db2405abefd55"><td class="mdescLeft">&#160;</td><td class="mdescRight">utility function to locate the first occurrence of a character in a string while respecting parentheses <br /></td></tr>
<tr class="separator:aab463320a19667bd604db2405abefd55"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a072d13f905ab9438d38d7415df222817"><td class="memItemLeft" align="right" valign="top">char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a072d13f905ab9438d38d7415df222817">subString</a> (const char *str, size_t <a class="el" href="../../df/dfa/vector_8c.html#a1afee8aaf33d741df31a73048cff4473">begin</a>, size_t end)</td></tr>
<tr class="memdesc:a072d13f905ab9438d38d7415df222817"><td class="mdescLeft">&#160;</td><td class="mdescRight">utility function to create a subString <br /></td></tr>
<tr class="separator:a072d13f905ab9438d38d7415df222817"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af1fbbb13a173dbacb0d4195923ab6cb3"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#af1fbbb13a173dbacb0d4195923ab6cb3">redirect</a> (struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *nfa, struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *src, struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *dest)</td></tr>
<tr class="memdesc:af1fbbb13a173dbacb0d4195923ab6cb3"><td class="mdescLeft">&#160;</td><td class="mdescRight">helper function to recursively redirect transition rule targets <br /></td></tr>
<tr class="separator:af1fbbb13a173dbacb0d4195923ab6cb3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac3ded2c86cae5d238511a1e2d8bf7a80"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#ac3ded2c86cae5d238511a1e2d8bf7a80">compileFromAST</a> (struct <a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a> *root)</td></tr>
<tr class="separator:ac3ded2c86cae5d238511a1e2d8bf7a80"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a709e32f5905536216abb03efb4f4db2b"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a709e32f5905536216abb03efb4f4db2b">contains</a> (struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> **states, int len, struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *state)</td></tr>
<tr class="memdesc:a709e32f5905536216abb03efb4f4db2b"><td class="mdescLeft">&#160;</td><td class="mdescRight">helper function to determine an element's presence in an array <br /></td></tr>
<tr class="separator:a709e32f5905536216abb03efb4f4db2b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a34774f1859a742ea1c3eaf3f6726b66c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a34774f1859a742ea1c3eaf3f6726b66c">findEmpty</a> (struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *target, struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> **states, int *sc)</td></tr>
<tr class="memdesc:a34774f1859a742ea1c3eaf3f6726b66c"><td class="mdescLeft">&#160;</td><td class="mdescRight">helper function to manage empty character transitions <br /></td></tr>
<tr class="separator:a34774f1859a742ea1c3eaf3f6726b66c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a38faadeab39bb48716f1065bc05abec8"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a> (const char *regex, const char *string, const int expected)</td></tr>
<tr class="memdesc:a38faadeab39bb48716f1065bc05abec8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Testing helper function. <br /></td></tr>
<tr class="separator:a38faadeab39bb48716f1065bc05abec8"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a13eda00dd5efd9440b0eaf5430b73e84"><td class="memItemLeft" align="right" valign="top">static void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a13eda00dd5efd9440b0eaf5430b73e84">test</a> (void)</td></tr>
<tr class="memdesc:a13eda00dd5efd9440b0eaf5430b73e84"><td class="mdescLeft">&#160;</td><td class="mdescRight">Self-test implementations. <br /></td></tr>
<tr class="separator:a13eda00dd5efd9440b0eaf5430b73e84"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a840291bc02cba5474a4cb46a9b9566fe"><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a840291bc02cba5474a4cb46a9b9566fe">main</a> (void)</td></tr>
<tr class="memdesc:a840291bc02cba5474a4cb46a9b9566fe"><td class="mdescLeft">&#160;</td><td class="mdescRight">Main function. <br /></td></tr>
<tr class="separator:a840291bc02cba5474a4cb46a9b9566fe"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p><a href="https://en.wikipedia.org/wiki/Thompson%27s_construction" target="_blank">McNaughton–Yamada–Thompson algorithm</a> </p>
<p>From Wikipedia: In computer science, Thompson's construction algorithm, also called the McNaughton–Yamada–Thompson algorithm, is a method of transforming a regular expression into an equivalent nondeterministic finite automaton (<a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a>). This implementation implements the all three operations (implicit concatenation, '|' for union, '*' for Kleene star) required by the formal definition of regular expressions. </p><dl class="section author"><dt>Author</dt><dd><a href="https://github.com/CascadingCascade" target="_blank">Sharon Cassidy</a> </dd></dl>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="a4ed0049e15d45e0d75a991fbb6f8963c" name="a4ed0049e15d45e0d75a991fbb6f8963c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a4ed0049e15d45e0d75a991fbb6f8963c">&#9670;&#160;</a></span>addRule()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname">void addRule </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td>
<td class="paramname"><em>nfa</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="../../d9/dd9/structtrans_rule.html">transRule</a> *&#160;</td>
<td class="paramname"><em>rule</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>loc</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>adds a transition rule to a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nfa</td><td>target <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </td></tr>
<tr><td class="paramname">rule</td><td>the rule to be added </td></tr>
<tr><td class="paramname">loc</td><td>which state this rule should be added to </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 380</span> {</div>
<div class="line"><span class="lineno"> 381</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a6d263fee53d282bdb1536ad2134bd532">rulePool</a>[nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a7087a5c8f402de41f50d38f7fdf99f74">ruleCount</a>++] = rule;</div>
<div class="line"><span class="lineno"> 382</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>* state = nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[loc];</div>
<div class="line"><span class="lineno"> 383</span> state-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aca9718d26eff08bb41418c5ec3442381">rules</a>[state-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aab70804a0b5849410e61f51a225d3072">ruleCount</a>++] = rule;</div>
<div class="line"><span class="lineno"> 384</span>}</div>
<div class="ttc" id="astruct_n_f_a_html_a6d263fee53d282bdb1536ad2134bd532"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#a6d263fee53d282bdb1536ad2134bd532">NFA::rulePool</a></div><div class="ttdeci">struct transRule ** rulePool</div><div class="ttdoc">the pool of all transition rules</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:74</div></div>
<div class="ttc" id="astruct_n_f_a_html_a7087a5c8f402de41f50d38f7fdf99f74"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#a7087a5c8f402de41f50d38f7fdf99f74">NFA::ruleCount</a></div><div class="ttdeci">int ruleCount</div><div class="ttdoc">the total number of transition rules in this NFA</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:73</div></div>
<div class="ttc" id="astruct_n_f_a_html_aaf1fe7a48e3990c7cc9ec5cba8c82d02"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">NFA::statePool</a></div><div class="ttdeci">struct NFAState ** statePool</div><div class="ttdoc">the pool of all available states</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:72</div></div>
<div class="ttc" id="astruct_n_f_a_state_html"><div class="ttname"><a href="../../d4/d97/struct_n_f_a_state.html">NFAState</a></div><div class="ttdoc">Definition for a NFA state.</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:54</div></div>
<div class="ttc" id="astruct_n_f_a_state_html_aab70804a0b5849410e61f51a225d3072"><div class="ttname"><a href="../../d4/d97/struct_n_f_a_state.html#aab70804a0b5849410e61f51a225d3072">NFAState::ruleCount</a></div><div class="ttdeci">int ruleCount</div><div class="ttdoc">number of transition rules this state have</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:55</div></div>
<div class="ttc" id="astruct_n_f_a_state_html_aca9718d26eff08bb41418c5ec3442381"><div class="ttname"><a href="../../d4/d97/struct_n_f_a_state.html#aca9718d26eff08bb41418c5ec3442381">NFAState::rules</a></div><div class="ttdeci">struct transRule ** rules</div><div class="ttdoc">the transition rules</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:56</div></div>
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<a id="a799974b5bc43a844a200715db21b1124" name="a799974b5bc43a844a200715db21b1124"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a799974b5bc43a844a200715db21b1124">&#9670;&#160;</a></span>addState()</h2>
<div class="memitem">
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<td class="memname">void addState </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td>
<td class="paramname"><em>nfa</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *&#160;</td>
<td class="paramname"><em>state</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>adds a state to a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nfa</td><td>target <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </td></tr>
<tr><td class="paramname">state</td><td>the <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> state to be added </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 369</span> {</div>
<div class="line"><span class="lineno"> 370</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a1f68cf1d2a14e9e3035baba764dd3df7">stateCount</a>++] = state;</div>
<div class="line"><span class="lineno"> 371</span>}</div>
<div class="ttc" id="astruct_n_f_a_html_a1f68cf1d2a14e9e3035baba764dd3df7"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#a1f68cf1d2a14e9e3035baba764dd3df7">NFA::stateCount</a></div><div class="ttdeci">int stateCount</div><div class="ttdoc">the total number of states this NFA have</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:71</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a496e9b4e45417ac56dac40bbbb769d7a">&#9670;&#160;</a></span>buildAST()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">struct <a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a> * buildAST </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>input</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>recursively constructs a AST from a preprocessed regex string </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">input</td><td>regex </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>pointer to the resulting tree </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 189</span> {</div>
<div class="line"><span class="lineno"> 190</span> </div>
<div class="line"><span class="lineno"> 191</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a>* <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a> = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a12df013d848665fdcdcb01870c322af6">createNode</a>(<span class="charliteral">&#39;\0&#39;</span>);</div>
<div class="line"><span class="lineno"> 192</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#af7109e6ffd82cbbb705e486fd0ce92f0">left</a> = NULL;</div>
<div class="line"><span class="lineno"> 193</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#a51e160f22dc6064bac4a4f9f1d931c2c">right</a> = NULL;</div>
<div class="line"><span class="lineno"> 194</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> len = strlen(input);</div>
<div class="line"><span class="lineno"> 195</span> <span class="keywordtype">size_t</span> index;</div>
<div class="line"><span class="lineno"> 196</span> </div>
<div class="line"><span class="lineno"> 197</span> <span class="comment">// Empty input</span></div>
<div class="line"><span class="lineno"> 198</span> <span class="keywordflow">if</span>(len == 0) <span class="keywordflow">return</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>;</div>
<div class="line"><span class="lineno"> 199</span> </div>
<div class="line"><span class="lineno"> 200</span> <span class="comment">// Character literals</span></div>
<div class="line"><span class="lineno"> 201</span> <span class="keywordflow">if</span>(len == 1) {</div>
<div class="line"><span class="lineno"> 202</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;content = input[0];</div>
<div class="line"><span class="lineno"> 203</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>;</div>
<div class="line"><span class="lineno"> 204</span> }</div>
<div class="line"><span class="lineno"> 205</span> </div>
<div class="line"><span class="lineno"> 206</span> <span class="comment">// Discard parentheses</span></div>
<div class="line"><span class="lineno"> 207</span> <span class="keywordflow">if</span>(input[0] == <span class="charliteral">&#39;(&#39;</span> &amp;&amp; input[len - 1] == <span class="charliteral">&#39;)&#39;</span>) {</div>
<div class="line"><span class="lineno"> 208</span> <span class="keywordtype">char</span>* temp = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a072d13f905ab9438d38d7415df222817">subString</a>(input, 1, len - 2);</div>
<div class="line"><span class="lineno"> 209</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6a97ab2db6392f262b03370689872348">destroyNode</a>(<a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>);</div>
<div class="line"><span class="lineno"> 210</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a> = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a>(temp);</div>
<div class="line"><span class="lineno"> 211</span> </div>
<div class="line"><span class="lineno"> 212</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(temp);</div>
<div class="line"><span class="lineno"> 213</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>;</div>
<div class="line"><span class="lineno"> 214</span> }</div>
<div class="line"><span class="lineno"> 215</span> </div>
<div class="line"><span class="lineno"> 216</span> <span class="comment">// Union</span></div>
<div class="line"><span class="lineno"> 217</span> index = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aab463320a19667bd604db2405abefd55">indexOf</a>(input, <span class="charliteral">&#39;|&#39;</span>);</div>
<div class="line"><span class="lineno"> 218</span> <span class="keywordflow">if</span>(index) {</div>
<div class="line"><span class="lineno"> 219</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;content = <span class="charliteral">&#39;|&#39;</span>;</div>
<div class="line"><span class="lineno"> 220</span> </div>
<div class="line"><span class="lineno"> 221</span> <span class="keywordtype">char</span>* temp1 = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a072d13f905ab9438d38d7415df222817">subString</a>(input, 0, index - 1);</div>
<div class="line"><span class="lineno"> 222</span> <span class="keywordtype">char</span>* temp2 = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a072d13f905ab9438d38d7415df222817">subString</a>(input, index + 1, len - 1);</div>
<div class="line"><span class="lineno"> 223</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#af7109e6ffd82cbbb705e486fd0ce92f0">left</a> = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a>(temp1);</div>
<div class="line"><span class="lineno"> 224</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#a51e160f22dc6064bac4a4f9f1d931c2c">right</a> = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a>(temp2);</div>
<div class="line"><span class="lineno"> 225</span> </div>
<div class="line"><span class="lineno"> 226</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(temp2);</div>
<div class="line"><span class="lineno"> 227</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(temp1);</div>
<div class="line"><span class="lineno"> 228</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>;</div>
<div class="line"><span class="lineno"> 229</span> }</div>
<div class="line"><span class="lineno"> 230</span> </div>
<div class="line"><span class="lineno"> 231</span> <span class="comment">// Concatenation</span></div>
<div class="line"><span class="lineno"> 232</span> index = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aab463320a19667bd604db2405abefd55">indexOf</a>(input, <span class="charliteral">&#39;\n&#39;</span>);</div>
<div class="line"><span class="lineno"> 233</span> <span class="keywordflow">if</span>(index) {</div>
<div class="line"><span class="lineno"> 234</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;content = <span class="charliteral">&#39;\n&#39;</span>;</div>
<div class="line"><span class="lineno"> 235</span> </div>
<div class="line"><span class="lineno"> 236</span> <span class="keywordtype">char</span>* temp1 = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a072d13f905ab9438d38d7415df222817">subString</a>(input, 0, index - 1);</div>
<div class="line"><span class="lineno"> 237</span> <span class="keywordtype">char</span>* temp2 = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a072d13f905ab9438d38d7415df222817">subString</a>(input, index + 1, len - 1);</div>
<div class="line"><span class="lineno"> 238</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#af7109e6ffd82cbbb705e486fd0ce92f0">left</a> = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a>(temp1);</div>
<div class="line"><span class="lineno"> 239</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#a51e160f22dc6064bac4a4f9f1d931c2c">right</a> = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a>(temp2);</div>
<div class="line"><span class="lineno"> 240</span> </div>
<div class="line"><span class="lineno"> 241</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(temp2);</div>
<div class="line"><span class="lineno"> 242</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(temp1);</div>
<div class="line"><span class="lineno"> 243</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>;</div>
<div class="line"><span class="lineno"> 244</span> }</div>
<div class="line"><span class="lineno"> 245</span> </div>
<div class="line"><span class="lineno"> 246</span> <span class="comment">// Kleene star</span></div>
<div class="line"><span class="lineno"> 247</span> <span class="comment">// Testing with indexOf() is unnecessary here,</span></div>
<div class="line"><span class="lineno"> 248</span> <span class="comment">// Since all other possibilities have been exhausted</span></div>
<div class="line"><span class="lineno"> 249</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;content = <span class="charliteral">&#39;*&#39;</span>;</div>
<div class="line"><span class="lineno"> 250</span> <span class="keywordtype">char</span>* temp = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a072d13f905ab9438d38d7415df222817">subString</a>(input, 0, len - 2);</div>
<div class="line"><span class="lineno"> 251</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#af7109e6ffd82cbbb705e486fd0ce92f0">left</a> = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a>(temp);</div>
<div class="line"><span class="lineno"> 252</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#a51e160f22dc6064bac4a4f9f1d931c2c">right</a> = NULL;</div>
<div class="line"><span class="lineno"> 253</span> </div>
<div class="line"><span class="lineno"> 254</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(temp);</div>
<div class="line"><span class="lineno"> 255</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>;</div>
<div class="line"><span class="lineno"> 256</span>}</div>
<div class="ttc" id="amalloc__dbg_8h_html_a9cc854374299a1dd933bf62029761768"><div class="ttname"><a href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a></div><div class="ttdeci">#define free(ptr)</div><div class="ttdoc">This macro replace the standard free function with free_dbg.</div><div class="ttdef"><b>Definition:</b> malloc_dbg.h:26</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a072d13f905ab9438d38d7415df222817"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a072d13f905ab9438d38d7415df222817">subString</a></div><div class="ttdeci">char * subString(const char *str, size_t begin, size_t end)</div><div class="ttdoc">utility function to create a subString</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:177</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a12df013d848665fdcdcb01870c322af6"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a12df013d848665fdcdcb01870c322af6">createNode</a></div><div class="ttdeci">struct ASTNode * createNode(char content)</div><div class="ttdoc">creates and initializes a AST node</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:606</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a496e9b4e45417ac56dac40bbbb769d7a"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a></div><div class="ttdeci">struct ASTNode * buildAST(const char *input)</div><div class="ttdoc">recursively constructs a AST from a preprocessed regex string</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:189</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a6a97ab2db6392f262b03370689872348"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6a97ab2db6392f262b03370689872348">destroyNode</a></div><div class="ttdeci">void destroyNode(struct ASTNode *node)</div><div class="ttdoc">recursively destroys a AST</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:619</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_aab463320a19667bd604db2405abefd55"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aab463320a19667bd604db2405abefd55">indexOf</a></div><div class="ttdeci">size_t indexOf(const char *str, char key)</div><div class="ttdoc">utility function to locate the first occurrence of a character in a string while respecting parenthes...</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:151</div></div>
<div class="ttc" id="astruct_a_s_t_node_html"><div class="ttname"><a href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a></div><div class="ttdoc">for assert()</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:27</div></div>
<div class="ttc" id="astructnode_html"><div class="ttname"><a href="../../d5/da1/structnode.html">node</a></div><div class="ttdoc">Node, the basic data structure in the tree.</div><div class="ttdef"><b>Definition:</b> binary_search_tree.c:15</div></div>
<div class="ttc" id="astructnode_html_a51e160f22dc6064bac4a4f9f1d931c2c"><div class="ttname"><a href="../../d5/da1/structnode.html#a51e160f22dc6064bac4a4f9f1d931c2c">node::right</a></div><div class="ttdeci">struct node * right</div><div class="ttdoc">right child</div><div class="ttdef"><b>Definition:</b> binary_search_tree.c:17</div></div>
<div class="ttc" id="astructnode_html_af7109e6ffd82cbbb705e486fd0ce92f0"><div class="ttname"><a href="../../d5/da1/structnode.html#af7109e6ffd82cbbb705e486fd0ce92f0">node::left</a></div><div class="ttdeci">struct node * left</div><div class="ttdoc">left child</div><div class="ttdef"><b>Definition:</b> binary_search_tree.c:16</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ac3ded2c86cae5d238511a1e2d8bf7a80">&#9670;&#160;</a></span>compileFromAST()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> * compileFromAST </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a> *&#160;</td>
<td class="paramname"><em>root</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<div class="fragment"><div class="line"><span class="lineno"> 279</span> {</div>
<div class="line"><span class="lineno"> 280</span> </div>
<div class="line"><span class="lineno"> 281</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* nfa = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a2491d4e9e630ebb9880260379779cf63">createNFA</a>();</div>
<div class="line"><span class="lineno"> 282</span> </div>
<div class="line"><span class="lineno"> 283</span> <span class="comment">// Empty input</span></div>
<div class="line"><span class="lineno"> 284</span> <span class="keywordflow">if</span> (root-&gt;content == <span class="charliteral">&#39;\0&#39;</span>) {</div>
<div class="line"><span class="lineno"> 285</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1], <span class="charliteral">&#39;\0&#39;</span>), 0);</div>
<div class="line"><span class="lineno"> 286</span> <span class="keywordflow">return</span> nfa;</div>
<div class="line"><span class="lineno"> 287</span> }</div>
<div class="line"><span class="lineno"> 288</span> </div>
<div class="line"><span class="lineno"> 289</span> <span class="comment">// Character literals</span></div>
<div class="line"><span class="lineno"> 290</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6eaf52853f2b39a1299cc16972a3298e">isLiteral</a>(root-&gt;content)) {</div>
<div class="line"><span class="lineno"> 291</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1], root-&gt;content), 0);</div>
<div class="line"><span class="lineno"> 292</span> <span class="keywordflow">return</span> nfa;</div>
<div class="line"><span class="lineno"> 293</span> }</div>
<div class="line"><span class="lineno"> 294</span> </div>
<div class="line"><span class="lineno"> 295</span> <span class="keywordflow">switch</span> (root-&gt;content) {</div>
<div class="line"><span class="lineno"> 296</span> </div>
<div class="line"><span class="lineno"> 297</span> <span class="keywordflow">case</span> <span class="charliteral">&#39;\n&#39;</span>: {</div>
<div class="line"><span class="lineno"> 298</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* ln = compileFromAST(root-&gt;left);</div>
<div class="line"><span class="lineno"> 299</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* rn = compileFromAST(root-&gt;right);</div>
<div class="line"><span class="lineno"> 300</span> </div>
<div class="line"><span class="lineno"> 301</span> <span class="comment">// Redirects all rules targeting ln&#39;s accepting state to</span></div>
<div class="line"><span class="lineno"> 302</span> <span class="comment">// target rn&#39;s starting state</span></div>
<div class="line"><span class="lineno"> 303</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#af1fbbb13a173dbacb0d4195923ab6cb3">redirect</a>(ln, ln-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1], rn-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[0]);</div>
<div class="line"><span class="lineno"> 304</span> </div>
<div class="line"><span class="lineno"> 305</span> <span class="comment">// Manually creates and initializes a special</span></div>
<div class="line"><span class="lineno"> 306</span> <span class="comment">// &quot;wrapper&quot; NFA</span></div>
<div class="line"><span class="lineno"> 307</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a684ed3494e22ee17d7b3e19a4d1fe977">destroyNFA</a>(nfa);</div>
<div class="line"><span class="lineno"> 308</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* wrapper = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>));</div>
<div class="line"><span class="lineno"> 309</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a1f68cf1d2a14e9e3035baba764dd3df7">stateCount</a> = 2;</div>
<div class="line"><span class="lineno"> 310</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>*) * 2);</div>
<div class="line"><span class="lineno"> 311</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a> = 0;</div>
<div class="line"><span class="lineno"> 312</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>*) * 2);</div>
<div class="line"><span class="lineno"> 313</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a7087a5c8f402de41f50d38f7fdf99f74">ruleCount</a> = 0;</div>
<div class="line"><span class="lineno"> 314</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a6d263fee53d282bdb1536ad2134bd532">rulePool</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d9/dd9/structtrans_rule.html">transRule</a>*) * 3);</div>
<div class="line"><span class="lineno"> 315</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a> = 0;</div>
<div class="line"><span class="lineno"> 316</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>*) * 2);</div>
<div class="line"><span class="lineno"> 317</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a46968ad64f39e9c62b8fb7970d494422">wrapperFlag</a> = 1;</div>
<div class="line"><span class="lineno"> 318</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>[wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a>++] = ln;</div>
<div class="line"><span class="lineno"> 319</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>[wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a>++] = rn;</div>
<div class="line"><span class="lineno"> 320</span> </div>
<div class="line"><span class="lineno"> 321</span> <span class="comment">// Maps the wrapper NFA&#39;s starting and ending states</span></div>
<div class="line"><span class="lineno"> 322</span> <span class="comment">// to its sub NFAs</span></div>
<div class="line"><span class="lineno"> 323</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[0] = ln-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[0];</div>
<div class="line"><span class="lineno"> 324</span> wrapper-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1] = rn-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1];</div>
<div class="line"><span class="lineno"> 325</span> </div>
<div class="line"><span class="lineno"> 326</span> <span class="keywordflow">return</span> wrapper;</div>
<div class="line"><span class="lineno"> 327</span> }</div>
<div class="line"><span class="lineno"> 328</span> <span class="keywordflow">case</span> <span class="charliteral">&#39;|&#39;</span>: {</div>
<div class="line"><span class="lineno"> 329</span> </div>
<div class="line"><span class="lineno"> 330</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* ln = compileFromAST(root-&gt;left);</div>
<div class="line"><span class="lineno"> 331</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* rn = compileFromAST(root-&gt;right);</div>
<div class="line"><span class="lineno"> 332</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>[nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a>++] = ln;</div>
<div class="line"><span class="lineno"> 333</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>[nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a>++] = rn;</div>
<div class="line"><span class="lineno"> 334</span> </div>
<div class="line"><span class="lineno"> 335</span> <span class="comment">// Adds empty character transition rules</span></div>
<div class="line"><span class="lineno"> 336</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(ln-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[0], <span class="charliteral">&#39;\0&#39;</span>), 0);</div>
<div class="line"><span class="lineno"> 337</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(ln, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1], <span class="charliteral">&#39;\0&#39;</span>), 1);</div>
<div class="line"><span class="lineno"> 338</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(rn-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[0], <span class="charliteral">&#39;\0&#39;</span>), 0);</div>
<div class="line"><span class="lineno"> 339</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(rn, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1], <span class="charliteral">&#39;\0&#39;</span>), 1);</div>
<div class="line"><span class="lineno"> 340</span> </div>
<div class="line"><span class="lineno"> 341</span> <span class="keywordflow">return</span> nfa;</div>
<div class="line"><span class="lineno"> 342</span> }</div>
<div class="line"><span class="lineno"> 343</span> <span class="keywordflow">case</span> <span class="charliteral">&#39;*&#39;</span>: {</div>
<div class="line"><span class="lineno"> 344</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* ln = compileFromAST(root-&gt;left);</div>
<div class="line"><span class="lineno"> 345</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>[nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a>++] = ln;</div>
<div class="line"><span class="lineno"> 346</span> </div>
<div class="line"><span class="lineno"> 347</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(ln, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(ln-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[0], <span class="charliteral">&#39;\0&#39;</span>), 1);</div>
<div class="line"><span class="lineno"> 348</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(ln-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[0], <span class="charliteral">&#39;\0&#39;</span>), 0);</div>
<div class="line"><span class="lineno"> 349</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(ln, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1], <span class="charliteral">&#39;\0&#39;</span>), 1);</div>
<div class="line"><span class="lineno"> 350</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1], <span class="charliteral">&#39;\0&#39;</span>), 0);</div>
<div class="line"><span class="lineno"> 351</span> </div>
<div class="line"><span class="lineno"> 352</span> <span class="keywordflow">return</span> nfa;</div>
<div class="line"><span class="lineno"> 353</span> }</div>
<div class="line"><span class="lineno"> 354</span> }</div>
<div class="line"><span class="lineno"> 355</span> </div>
<div class="line"><span class="lineno"> 356</span> <span class="comment">// Fallback, shouldn&#39;t happen in normal operation</span></div>
<div class="line"><span class="lineno"> 357</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a684ed3494e22ee17d7b3e19a4d1fe977">destroyNFA</a>(nfa);</div>
<div class="line"><span class="lineno"> 358</span> <span class="keywordflow">return</span> NULL;</div>
<div class="line"><span class="lineno"> 359</span>}</div>
<div class="ttc" id="amalloc__dbg_8h_html_a725f50ecaf1959d96de79b36b4788fee"><div class="ttname"><a href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a></div><div class="ttdeci">#define malloc(bytes)</div><div class="ttdoc">This macro replace the standard malloc function with malloc_dbg.</div><div class="ttdef"><b>Definition:</b> malloc_dbg.h:18</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a0b8d037bf2841dede90be41f5fe1ccdc"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a></div><div class="ttdeci">struct transRule * createRule(struct NFAState *state, char c)</div><div class="ttdoc">creates and initializes a transition rule</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:637</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a2491d4e9e630ebb9880260379779cf63"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a2491d4e9e630ebb9880260379779cf63">createNFA</a></div><div class="ttdeci">struct NFA * createNFA(void)</div><div class="ttdoc">creates and initializes a NFA</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:678</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a4ed0049e15d45e0d75a991fbb6f8963c"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a></div><div class="ttdeci">void addRule(struct NFA *nfa, struct transRule *rule, int loc)</div><div class="ttdoc">adds a transition rule to a NFA</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:380</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a684ed3494e22ee17d7b3e19a4d1fe977"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a684ed3494e22ee17d7b3e19a4d1fe977">destroyNFA</a></div><div class="ttdeci">void destroyNFA(struct NFA *nfa)</div><div class="ttdoc">recursively destroys a NFA</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:701</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a6eaf52853f2b39a1299cc16972a3298e"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6eaf52853f2b39a1299cc16972a3298e">isLiteral</a></div><div class="ttdeci">int isLiteral(const char ch)</div><div class="ttdoc">helper function to determine whether a character should be considered a character literal</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:99</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_af1fbbb13a173dbacb0d4195923ab6cb3"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#af1fbbb13a173dbacb0d4195923ab6cb3">redirect</a></div><div class="ttdeci">void redirect(struct NFA *nfa, struct NFAState *src, struct NFAState *dest)</div><div class="ttdoc">helper function to recursively redirect transition rule targets</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:267</div></div>
<div class="ttc" id="astruct_n_f_a_html"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html">NFA</a></div><div class="ttdoc">Definition for the NFA itself.</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:70</div></div>
<div class="ttc" id="astruct_n_f_a_html_a38e4fdb290def5942dc14eff7c6211ba"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">NFA::CSCount</a></div><div class="ttdeci">int CSCount</div><div class="ttdoc">the number of currently active states</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:75</div></div>
<div class="ttc" id="astruct_n_f_a_html_a46968ad64f39e9c62b8fb7970d494422"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#a46968ad64f39e9c62b8fb7970d494422">NFA::wrapperFlag</a></div><div class="ttdeci">int wrapperFlag</div><div class="ttdoc">whether this NFA is a concatenation wrapper</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:79</div></div>
<div class="ttc" id="astruct_n_f_a_html_a5e64682c0c21d3f931096b2ef38b5072"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">NFA::subCount</a></div><div class="ttdeci">int subCount</div><div class="ttdoc">the number of sub NFAs</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:77</div></div>
<div class="ttc" id="astruct_n_f_a_html_a9b3eef40ce5b331a6508648b2c32ea00"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">NFA::subs</a></div><div class="ttdeci">struct NFA ** subs</div><div class="ttdoc">the pool of all sub NFAs</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:78</div></div>
<div class="ttc" id="astruct_n_f_a_html_ad400f1830095be00a7fdff804d6405c0"><div class="ttname"><a href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">NFA::currentStates</a></div><div class="ttdeci">struct NFAState ** currentStates</div><div class="ttdoc">the pool of all active states</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:76</div></div>
<div class="ttc" id="astructtrans_rule_html"><div class="ttname"><a href="../../d9/dd9/structtrans_rule.html">transRule</a></div><div class="ttdoc">Definition for a NFA state transition rule.</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:41</div></div>
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</div>
</div>
<a id="a709e32f5905536216abb03efb4f4db2b" name="a709e32f5905536216abb03efb4f4db2b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a709e32f5905536216abb03efb4f4db2b">&#9670;&#160;</a></span>contains()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int contains </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> **&#160;</td>
<td class="paramname"><em>states</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>len</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *&#160;</td>
<td class="paramname"><em>state</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>helper function to determine an element's presence in an array </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">states</td><td>target array </td></tr>
<tr><td class="paramname">len</td><td>length of the target array </td></tr>
<tr><td class="paramname">state</td><td>the element to search for </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>1</code> if the element is present, <code>0</code> otherwise </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 428</span> {</div>
<div class="line"><span class="lineno"> 429</span> <span class="keywordtype">int</span> f = 0;</div>
<div class="line"><span class="lineno"> 430</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; len; ++i) {</div>
<div class="line"><span class="lineno"> 431</span> <span class="keywordflow">if</span>(states[i] == state) {</div>
<div class="line"><span class="lineno"> 432</span> f = 1;</div>
<div class="line"><span class="lineno"> 433</span> <span class="keywordflow">break</span>;</div>
<div class="line"><span class="lineno"> 434</span> }</div>
<div class="line"><span class="lineno"> 435</span> }</div>
<div class="line"><span class="lineno"> 436</span> <span class="keywordflow">return</span> f;</div>
<div class="line"><span class="lineno"> 437</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a2491d4e9e630ebb9880260379779cf63">&#9670;&#160;</a></span>createNFA()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> * createNFA </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>creates and initializes a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </p>
<dl class="section return"><dt>Returns</dt><dd>pointer to the newly created <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 678</span> {</div>
<div class="line"><span class="lineno"> 679</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* nfa = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>));</div>
<div class="line"><span class="lineno"> 680</span> </div>
<div class="line"><span class="lineno"> 681</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a1f68cf1d2a14e9e3035baba764dd3df7">stateCount</a> = 0;</div>
<div class="line"><span class="lineno"> 682</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>*) * 5);</div>
<div class="line"><span class="lineno"> 683</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a7087a5c8f402de41f50d38f7fdf99f74">ruleCount</a> = 0;</div>
<div class="line"><span class="lineno"> 684</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a6d263fee53d282bdb1536ad2134bd532">rulePool</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d9/dd9/structtrans_rule.html">transRule</a>*) * 10);</div>
<div class="line"><span class="lineno"> 685</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a> = 0;</div>
<div class="line"><span class="lineno"> 686</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>*) * 5);</div>
<div class="line"><span class="lineno"> 687</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a> = 0;</div>
<div class="line"><span class="lineno"> 688</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>*) * 5);</div>
<div class="line"><span class="lineno"> 689</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a46968ad64f39e9c62b8fb7970d494422">wrapperFlag</a> = 0;</div>
<div class="line"><span class="lineno"> 690</span> </div>
<div class="line"><span class="lineno"> 691</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a799974b5bc43a844a200715db21b1124">addState</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aa87c20bf2b324829943accce4bbff84a">createState</a>());</div>
<div class="line"><span class="lineno"> 692</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a799974b5bc43a844a200715db21b1124">addState</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aa87c20bf2b324829943accce4bbff84a">createState</a>());</div>
<div class="line"><span class="lineno"> 693</span> <span class="keywordflow">return</span> nfa;</div>
<div class="line"><span class="lineno"> 694</span>}</div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a799974b5bc43a844a200715db21b1124"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a799974b5bc43a844a200715db21b1124">addState</a></div><div class="ttdeci">void addState(struct NFA *nfa, struct NFAState *state)</div><div class="ttdoc">adds a state to a NFA</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:369</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_aa87c20bf2b324829943accce4bbff84a"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aa87c20bf2b324829943accce4bbff84a">createState</a></div><div class="ttdeci">struct NFAState * createState(void)</div><div class="ttdoc">creates and initializes a NFA state</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:657</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a12df013d848665fdcdcb01870c322af6">&#9670;&#160;</a></span>createNode()</h2>
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<td class="memname">struct <a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a> * createNode </td>
<td>(</td>
<td class="paramtype">const char&#160;</td>
<td class="paramname"><em>content</em></td><td>)</td>
<td></td>
</tr>
</table>
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<p>creates and initializes a AST node </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">content</td><td>data to initializes the node with </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>pointer to the newly created node </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 606</span> {</div>
<div class="line"><span class="lineno"> 607</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a>* <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a>));</div>
<div class="line"><span class="lineno"> 608</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;content = <a class="code hl_variable" href="../../d8/d66/struct_a_s_t_node.html#af6ca532deb4e4ae30127449bfe5a1970">content</a>;</div>
<div class="line"><span class="lineno"> 609</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#af7109e6ffd82cbbb705e486fd0ce92f0">left</a> = NULL;</div>
<div class="line"><span class="lineno"> 610</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#a51e160f22dc6064bac4a4f9f1d931c2c">right</a> = NULL;</div>
<div class="line"><span class="lineno"> 611</span> <span class="keywordflow">return</span> <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>;</div>
<div class="line"><span class="lineno"> 612</span>}</div>
<div class="ttc" id="astruct_a_s_t_node_html_af6ca532deb4e4ae30127449bfe5a1970"><div class="ttname"><a href="../../d8/d66/struct_a_s_t_node.html#af6ca532deb4e4ae30127449bfe5a1970">ASTNode::content</a></div><div class="ttdeci">char content</div><div class="ttdoc">the content of this node</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:28</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a0b8d037bf2841dede90be41f5fe1ccdc">&#9670;&#160;</a></span>createRule()</h2>
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<td class="memname">struct <a class="el" href="../../d9/dd9/structtrans_rule.html">transRule</a> * createRule </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *&#160;</td>
<td class="paramname"><em>state</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char&#160;</td>
<td class="paramname"><em>c</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>creates and initializes a transition rule </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">state</td><td>transition target </td></tr>
<tr><td class="paramname">c</td><td>transition condition </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>pointer to the newly created rule </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 637</span> {</div>
<div class="line"><span class="lineno"> 638</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d9/dd9/structtrans_rule.html">transRule</a>* rule = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d9/dd9/structtrans_rule.html">transRule</a>));</div>
<div class="line"><span class="lineno"> 639</span> rule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a> = state;</div>
<div class="line"><span class="lineno"> 640</span> rule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#abd89c7bca6969150c7bbf7d888e4aa6b">cond</a> = c;</div>
<div class="line"><span class="lineno"> 641</span> <span class="keywordflow">return</span> rule;</div>
<div class="line"><span class="lineno"> 642</span>}</div>
<div class="ttc" id="astructtrans_rule_html_a3459db0aa62824b51da3297e431900bd"><div class="ttname"><a href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">transRule::target</a></div><div class="ttdeci">struct NFAState * target</div><div class="ttdoc">pointer to the state to transit to</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:42</div></div>
<div class="ttc" id="astructtrans_rule_html_abd89c7bca6969150c7bbf7d888e4aa6b"><div class="ttname"><a href="../../d9/dd9/structtrans_rule.html#abd89c7bca6969150c7bbf7d888e4aa6b">transRule::cond</a></div><div class="ttdeci">char cond</div><div class="ttdoc">the input required to activate this transition</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:43</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#aa87c20bf2b324829943accce4bbff84a">&#9670;&#160;</a></span>createState()</h2>
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<td class="memname">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> * createState </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
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<p>creates and initializes a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> state </p>
<dl class="section return"><dt>Returns</dt><dd>pointer to the newly created <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> state </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 657</span> {</div>
<div class="line"><span class="lineno"> 658</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>* state = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>));</div>
<div class="line"><span class="lineno"> 659</span> state-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aab70804a0b5849410e61f51a225d3072">ruleCount</a> = 0;</div>
<div class="line"><span class="lineno"> 660</span> state-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aca9718d26eff08bb41418c5ec3442381">rules</a> = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d9/dd9/structtrans_rule.html">transRule</a>*) * 3);</div>
<div class="line"><span class="lineno"> 661</span> <span class="keywordflow">return</span> state;</div>
<div class="line"><span class="lineno"> 662</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a684ed3494e22ee17d7b3e19a4d1fe977">&#9670;&#160;</a></span>destroyNFA()</h2>
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<td class="memname">void destroyNFA </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td>
<td class="paramname"><em>nfa</em></td><td>)</td>
<td></td>
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<p>recursively destroys a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nfa</td><td>pointer to the object to be deleted </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 701</span> {</div>
<div class="line"><span class="lineno"> 702</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 703</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a684ed3494e22ee17d7b3e19a4d1fe977">destroyNFA</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>[i]);</div>
<div class="line"><span class="lineno"> 704</span> }</div>
<div class="line"><span class="lineno"> 705</span> </div>
<div class="line"><span class="lineno"> 706</span> <span class="comment">// In case of a wrapper NFA, do not free its states</span></div>
<div class="line"><span class="lineno"> 707</span> <span class="comment">// because it doesn&#39;t really have any states of its own</span></div>
<div class="line"><span class="lineno"> 708</span> <span class="keywordflow">if</span> (!nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a46968ad64f39e9c62b8fb7970d494422">wrapperFlag</a>) {</div>
<div class="line"><span class="lineno"> 709</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a1f68cf1d2a14e9e3035baba764dd3df7">stateCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 710</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a9a361f55b51ce6d677e907396fbc1652">destroyState</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[i]);</div>
<div class="line"><span class="lineno"> 711</span> }</div>
<div class="line"><span class="lineno"> 712</span> }</div>
<div class="line"><span class="lineno"> 713</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a7087a5c8f402de41f50d38f7fdf99f74">ruleCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 714</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#ade1398311f666988b895f41c3e36d70e">destroyRule</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a6d263fee53d282bdb1536ad2134bd532">rulePool</a>[i]);</div>
<div class="line"><span class="lineno"> 715</span> }</div>
<div class="line"><span class="lineno"> 716</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>);</div>
<div class="line"><span class="lineno"> 717</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a>);</div>
<div class="line"><span class="lineno"> 718</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a6d263fee53d282bdb1536ad2134bd532">rulePool</a>);</div>
<div class="line"><span class="lineno"> 719</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>);</div>
<div class="line"><span class="lineno"> 720</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(nfa);</div>
<div class="line"><span class="lineno"> 721</span>}</div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a9a361f55b51ce6d677e907396fbc1652"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a9a361f55b51ce6d677e907396fbc1652">destroyState</a></div><div class="ttdeci">void destroyState(struct NFAState *state)</div><div class="ttdoc">destroys a NFA state</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:669</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_ade1398311f666988b895f41c3e36d70e"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#ade1398311f666988b895f41c3e36d70e">destroyRule</a></div><div class="ttdeci">void destroyRule(struct transRule *rule)</div><div class="ttdoc">destroys a transition rule object</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:649</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a6a97ab2db6392f262b03370689872348">&#9670;&#160;</a></span>destroyNode()</h2>
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<td class="memname">void destroyNode </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a> *&#160;</td>
<td class="paramname"><em>node</em></td><td>)</td>
<td></td>
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<p>recursively destroys a AST </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">node</td><td>the root node of the tree to be deleted </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 619</span> {</div>
<div class="line"><span class="lineno"> 620</span> <span class="keywordflow">if</span>(<a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#af7109e6ffd82cbbb705e486fd0ce92f0">left</a> != NULL) {</div>
<div class="line"><span class="lineno"> 621</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6a97ab2db6392f262b03370689872348">destroyNode</a>(<a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#af7109e6ffd82cbbb705e486fd0ce92f0">left</a>);</div>
<div class="line"><span class="lineno"> 622</span> }</div>
<div class="line"><span class="lineno"> 623</span> </div>
<div class="line"><span class="lineno"> 624</span> <span class="keywordflow">if</span>(<a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#a51e160f22dc6064bac4a4f9f1d931c2c">right</a> != NULL) {</div>
<div class="line"><span class="lineno"> 625</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6a97ab2db6392f262b03370689872348">destroyNode</a>(<a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>-&gt;<a class="code hl_variable" href="../../d5/da1/structnode.html#a51e160f22dc6064bac4a4f9f1d931c2c">right</a>);</div>
<div class="line"><span class="lineno"> 626</span> }</div>
<div class="line"><span class="lineno"> 627</span> </div>
<div class="line"><span class="lineno"> 628</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(<a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>);</div>
<div class="line"><span class="lineno"> 629</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ade1398311f666988b895f41c3e36d70e">&#9670;&#160;</a></span>destroyRule()</h2>
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<td class="memname">void destroyRule </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d9/dd9/structtrans_rule.html">transRule</a> *&#160;</td>
<td class="paramname"><em>rule</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>destroys a transition rule object </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">rule</td><td>pointer to the object to be deleted </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 649</span> {</div>
<div class="line"><span class="lineno"> 650</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(rule);</div>
<div class="line"><span class="lineno"> 651</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a9a361f55b51ce6d677e907396fbc1652">&#9670;&#160;</a></span>destroyState()</h2>
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<td class="memname">void destroyState </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *&#160;</td>
<td class="paramname"><em>state</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>destroys a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> state </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">state</td><td>pointer to the object to be deleted </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 669</span> {</div>
<div class="line"><span class="lineno"> 670</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(state-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aca9718d26eff08bb41418c5ec3442381">rules</a>);</div>
<div class="line"><span class="lineno"> 671</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(state);</div>
<div class="line"><span class="lineno"> 672</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a34774f1859a742ea1c3eaf3f6726b66c">&#9670;&#160;</a></span>findEmpty()</h2>
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<td class="memname">void findEmpty </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *&#160;</td>
<td class="paramname"><em>target</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> **&#160;</td>
<td class="paramname"><em>states</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int *&#160;</td>
<td class="paramname"><em>sc</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>helper function to manage empty character transitions </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">target</td><td>target <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </td></tr>
<tr><td class="paramname">states</td><td>pointer to results storage location </td></tr>
<tr><td class="paramname">sc</td><td>pointer to results count storage location </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 446</span> {</div>
<div class="line"><span class="lineno"> 447</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; target-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aab70804a0b5849410e61f51a225d3072">ruleCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 448</span> <span class="keyword">const</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d9/dd9/structtrans_rule.html">transRule</a> *pRule = <a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a>-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aca9718d26eff08bb41418c5ec3442381">rules</a>[i];</div>
<div class="line"><span class="lineno"> 449</span> </div>
<div class="line"><span class="lineno"> 450</span> <span class="keywordflow">if</span> (pRule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#abd89c7bca6969150c7bbf7d888e4aa6b">cond</a> == <span class="charliteral">&#39;\0&#39;</span> &amp;&amp; !<a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a709e32f5905536216abb03efb4f4db2b">contains</a>(states, *sc, pRule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a>)) {</div>
<div class="line"><span class="lineno"> 451</span> states[(*sc)++] = pRule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a>;</div>
<div class="line"><span class="lineno"> 452</span> <span class="comment">// the use of `states` and `sc` is necessary</span></div>
<div class="line"><span class="lineno"> 453</span> <span class="comment">// to sync data across recursion levels</span></div>
<div class="line"><span class="lineno"> 454</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a34774f1859a742ea1c3eaf3f6726b66c">findEmpty</a>(pRule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a>, states, sc);</div>
<div class="line"><span class="lineno"> 455</span> }</div>
<div class="line"><span class="lineno"> 456</span> }</div>
<div class="line"><span class="lineno"> 457</span>}</div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a34774f1859a742ea1c3eaf3f6726b66c"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a34774f1859a742ea1c3eaf3f6726b66c">findEmpty</a></div><div class="ttdeci">void findEmpty(struct NFAState *target, struct NFAState **states, int *sc)</div><div class="ttdoc">helper function to manage empty character transitions</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:446</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a709e32f5905536216abb03efb4f4db2b"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a709e32f5905536216abb03efb4f4db2b">contains</a></div><div class="ttdeci">int contains(struct NFAState **states, int len, struct NFAState *state)</div><div class="ttdoc">helper function to determine an element's presence in an array</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:428</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#aab463320a19667bd604db2405abefd55">&#9670;&#160;</a></span>indexOf()</h2>
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<td class="memname">size_t indexOf </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>str</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char&#160;</td>
<td class="paramname"><em>key</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>utility function to locate the first occurrence of a character in a string while respecting parentheses </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>target string </td></tr>
<tr><td class="paramname">key</td><td>the character to be located </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the index of its first occurrence, <code>0</code> if it could not be found </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 151</span> {</div>
<div class="line"><span class="lineno"> 152</span> <span class="keywordtype">int</span> depth = 0;</div>
<div class="line"><span class="lineno"> 153</span> </div>
<div class="line"><span class="lineno"> 154</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; strlen(str); ++i) {</div>
<div class="line"><span class="lineno"> 155</span> <span class="keyword">const</span> <span class="keywordtype">char</span> c = str[i];</div>
<div class="line"><span class="lineno"> 156</span> </div>
<div class="line"><span class="lineno"> 157</span> <span class="keywordflow">if</span>(depth == 0 &amp;&amp; c == key) {</div>
<div class="line"><span class="lineno"> 158</span> <span class="keywordflow">return</span> i;</div>
<div class="line"><span class="lineno"> 159</span> }</div>
<div class="line"><span class="lineno"> 160</span> <span class="keywordflow">if</span>(c == <span class="charliteral">&#39;(&#39;</span>) depth++;</div>
<div class="line"><span class="lineno"> 161</span> <span class="keywordflow">if</span>(c == <span class="charliteral">&#39;)&#39;</span>) depth--;</div>
<div class="line"><span class="lineno"> 162</span> }</div>
<div class="line"><span class="lineno"> 163</span> <span class="comment">// Due to the way this function is intended to be used,</span></div>
<div class="line"><span class="lineno"> 164</span> <span class="comment">// it&#39;s safe to assume the character will not appear as</span></div>
<div class="line"><span class="lineno"> 165</span> <span class="comment">// the string&#39;s first character</span></div>
<div class="line"><span class="lineno"> 166</span> <span class="comment">// thus `0` is used as the `not found` value</span></div>
<div class="line"><span class="lineno"> 167</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 168</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a2dabcd5c410a4b0cac1b4ab378c9dcdc">&#9670;&#160;</a></span>isAccepting()</h2>
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<td class="memname">int isAccepting </td>
<td>(</td>
<td class="paramtype">const struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td>
<td class="paramname"><em>nfa</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>determines whether the <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> is currently in its accepting state </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nfa</td><td>target <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>1</code> if the <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> is in its accepting state </dd>
<dd>
<code>0</code> otherwise </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 522</span> {</div>
<div class="line"><span class="lineno"> 523</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 524</span> <span class="keywordflow">if</span>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a>[i] == nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[1]) {</div>
<div class="line"><span class="lineno"> 525</span> <span class="keywordflow">return</span> 1;</div>
<div class="line"><span class="lineno"> 526</span> }</div>
<div class="line"><span class="lineno"> 527</span> }</div>
<div class="line"><span class="lineno"> 528</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 529</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a6eaf52853f2b39a1299cc16972a3298e">&#9670;&#160;</a></span>isLiteral()</h2>
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<td class="memname">int isLiteral </td>
<td>(</td>
<td class="paramtype">const char&#160;</td>
<td class="paramname"><em>ch</em></td><td>)</td>
<td></td>
</tr>
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<p>helper function to determine whether a character should be considered a character literal </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">ch</td><td>the character to be tested </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd><code>1</code> if it is a character literal </dd>
<dd>
<code>0</code> otherwise </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 99</span> {</div>
<div class="line"><span class="lineno"> 100</span> <span class="keywordflow">return</span> !(ch == <span class="charliteral">&#39;(&#39;</span> || ch == <span class="charliteral">&#39;)&#39;</span> || ch == <span class="charliteral">&#39;*&#39;</span> || ch == <span class="charliteral">&#39;\n&#39;</span> || ch == <span class="charliteral">&#39;|&#39;</span>);</div>
<div class="line"><span class="lineno"> 101</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a840291bc02cba5474a4cb46a9b9566fe">&#9670;&#160;</a></span>main()</h2>
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<td class="memname">int main </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
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<p>Main function. </p>
<dl class="section return"><dt>Returns</dt><dd>0 on exit </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 593</span> {</div>
<div class="line"><span class="lineno"> 594</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a13eda00dd5efd9440b0eaf5430b73e84">test</a>(); <span class="comment">// run self-test implementations</span></div>
<div class="line"><span class="lineno"> 595</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><span class="lineno"> 596</span>}</div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a13eda00dd5efd9440b0eaf5430b73e84"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a13eda00dd5efd9440b0eaf5430b73e84">test</a></div><div class="ttdeci">static void test(void)</div><div class="ttdoc">Self-test implementations.</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:572</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a86e0f235783b005e4e6e951c9603bbe1">&#9670;&#160;</a></span>postProcessing()</h2>
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<td class="memname">void postProcessing </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td>
<td class="paramname"><em>nfa</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>performs postprocessing on a compiled <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a>, add circular empty character transition rules where it's needed for the <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> to function correctly </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nfa</td><td>target <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 393</span> {</div>
<div class="line"><span class="lineno"> 394</span> <span class="comment">// Since the sub NFA&#39;s states and rules are managed</span></div>
<div class="line"><span class="lineno"> 395</span> <span class="comment">// through their own pools, recursion is necessary</span></div>
<div class="line"><span class="lineno"> 396</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 397</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a86e0f235783b005e4e6e951c9603bbe1">postProcessing</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>[i]);</div>
<div class="line"><span class="lineno"> 398</span> }</div>
<div class="line"><span class="lineno"> 399</span> </div>
<div class="line"><span class="lineno"> 400</span> <span class="comment">// If a state does not have any empty character accepting rule,</span></div>
<div class="line"><span class="lineno"> 401</span> <span class="comment">// we add a rule that circles back to itself</span></div>
<div class="line"><span class="lineno"> 402</span> <span class="comment">// So this state will be preserved when</span></div>
<div class="line"><span class="lineno"> 403</span> <span class="comment">// empty characters are inputted</span></div>
<div class="line"><span class="lineno"> 404</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a1f68cf1d2a14e9e3035baba764dd3df7">stateCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 405</span> </div>
<div class="line"><span class="lineno"> 406</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>* pState = nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[i];</div>
<div class="line"><span class="lineno"> 407</span> <span class="keywordtype">int</span> f = 0;</div>
<div class="line"><span class="lineno"> 408</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; pState-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aab70804a0b5849410e61f51a225d3072">ruleCount</a>; ++j) {</div>
<div class="line"><span class="lineno"> 409</span> <span class="keywordflow">if</span>(pState-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aca9718d26eff08bb41418c5ec3442381">rules</a>[j]-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#abd89c7bca6969150c7bbf7d888e4aa6b">cond</a> == <span class="charliteral">&#39;\0&#39;</span>) {</div>
<div class="line"><span class="lineno"> 410</span> f = 1;</div>
<div class="line"><span class="lineno"> 411</span> <span class="keywordflow">break</span>;</div>
<div class="line"><span class="lineno"> 412</span> }</div>
<div class="line"><span class="lineno"> 413</span> }</div>
<div class="line"><span class="lineno"> 414</span> </div>
<div class="line"><span class="lineno"> 415</span> <span class="keywordflow">if</span> (!f) {</div>
<div class="line"><span class="lineno"> 416</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a4ed0049e15d45e0d75a991fbb6f8963c">addRule</a>(nfa, <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a0b8d037bf2841dede90be41f5fe1ccdc">createRule</a>(pState, <span class="charliteral">&#39;\0&#39;</span>), i);</div>
<div class="line"><span class="lineno"> 417</span> }</div>
<div class="line"><span class="lineno"> 418</span> }</div>
<div class="line"><span class="lineno"> 419</span>}</div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a86e0f235783b005e4e6e951c9603bbe1"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a86e0f235783b005e4e6e951c9603bbe1">postProcessing</a></div><div class="ttdeci">void postProcessing(struct NFA *nfa)</div><div class="ttdoc">performs postprocessing on a compiled NFA, add circular empty character transition rules where it's n...</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:393</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#ae9a5eac7c0d8ac478eb1b97529638fb6">&#9670;&#160;</a></span>preProcessing()</h2>
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<td class="memname">char * preProcessing </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>input</em></td><td>)</td>
<td></td>
</tr>
</table>
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<p>performs preprocessing on a regex string, making all implicit concatenations explicit </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">input</td><td>target regex string </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>pointer to the processing result </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 109</span> {</div>
<div class="line"><span class="lineno"> 110</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> len = strlen(input);</div>
<div class="line"><span class="lineno"> 111</span> <span class="keywordflow">if</span>(len == 0) {</div>
<div class="line"><span class="lineno"> 112</span> <span class="keywordtype">char</span>* str = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(1);</div>
<div class="line"><span class="lineno"> 113</span> str[0] = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><span class="lineno"> 114</span> <span class="keywordflow">return</span> str;</div>
<div class="line"><span class="lineno"> 115</span> }</div>
<div class="line"><span class="lineno"> 116</span> </div>
<div class="line"><span class="lineno"> 117</span> <span class="keywordtype">char</span>* str = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(len * 2);</div>
<div class="line"><span class="lineno"> 118</span> <span class="keywordtype">size_t</span> op = 0;</div>
<div class="line"><span class="lineno"> 119</span> </div>
<div class="line"><span class="lineno"> 120</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; len - 1; ++i) {</div>
<div class="line"><span class="lineno"> 121</span> <span class="keywordtype">char</span> c = input[i];</div>
<div class="line"><span class="lineno"> 122</span> str[op++] = c;</div>
<div class="line"><span class="lineno"> 123</span> <span class="comment">// one character lookahead</span></div>
<div class="line"><span class="lineno"> 124</span> <span class="keywordtype">char</span> c1 = input[i + 1];</div>
<div class="line"><span class="lineno"> 125</span> </div>
<div class="line"><span class="lineno"> 126</span> <span class="keywordflow">if</span>( (<a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6eaf52853f2b39a1299cc16972a3298e">isLiteral</a>(c) &amp;&amp; <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6eaf52853f2b39a1299cc16972a3298e">isLiteral</a>(c1)) ||</div>
<div class="line"><span class="lineno"> 127</span> (<a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6eaf52853f2b39a1299cc16972a3298e">isLiteral</a>(c) &amp;&amp; c1 == <span class="charliteral">&#39;(&#39;</span>) ||</div>
<div class="line"><span class="lineno"> 128</span> (c == <span class="charliteral">&#39;)&#39;</span> &amp;&amp; c1 == <span class="charliteral">&#39;(&#39;</span>) ||</div>
<div class="line"><span class="lineno"> 129</span> (c == <span class="charliteral">&#39;)&#39;</span> &amp;&amp; <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6eaf52853f2b39a1299cc16972a3298e">isLiteral</a>(c1)) ||</div>
<div class="line"><span class="lineno"> 130</span> (c == <span class="charliteral">&#39;*&#39;</span> &amp;&amp; <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6eaf52853f2b39a1299cc16972a3298e">isLiteral</a>(c1)) ||</div>
<div class="line"><span class="lineno"> 131</span> (c == <span class="charliteral">&#39;*&#39;</span> &amp;&amp; c1 == <span class="charliteral">&#39;(&#39;</span>)</div>
<div class="line"><span class="lineno"> 132</span> ) {</div>
<div class="line"><span class="lineno"> 133</span> <span class="comment">// &#39;\n&#39; is used to represent concatenation</span></div>
<div class="line"><span class="lineno"> 134</span> <span class="comment">// in this implementation</span></div>
<div class="line"><span class="lineno"> 135</span> str[op++] = <span class="charliteral">&#39;\n&#39;</span>;</div>
<div class="line"><span class="lineno"> 136</span> }</div>
<div class="line"><span class="lineno"> 137</span> }</div>
<div class="line"><span class="lineno"> 138</span> </div>
<div class="line"><span class="lineno"> 139</span> str[op++] = input[len - 1];</div>
<div class="line"><span class="lineno"> 140</span> str[op] = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><span class="lineno"> 141</span> <span class="keywordflow">return</span> str;</div>
<div class="line"><span class="lineno"> 142</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#af1fbbb13a173dbacb0d4195923ab6cb3">&#9670;&#160;</a></span>redirect()</h2>
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<td class="memname">void redirect </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td>
<td class="paramname"><em>nfa</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *&#160;</td>
<td class="paramname"><em>src</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">struct <a class="el" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *&#160;</td>
<td class="paramname"><em>dest</em>&#160;</td>
</tr>
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<td></td>
<td>)</td>
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<p>helper function to recursively redirect transition rule targets </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nfa</td><td>target <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </td></tr>
<tr><td class="paramname">src</td><td>the state to redirect away from </td></tr>
<tr><td class="paramname">dest</td><td>the state to redirect to </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 267</span> {</div>
<div class="line"><span class="lineno"> 268</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a5e64682c0c21d3f931096b2ef38b5072">subCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 269</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#af1fbbb13a173dbacb0d4195923ab6cb3">redirect</a>(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a9b3eef40ce5b331a6508648b2c32ea00">subs</a>[i], src, dest);</div>
<div class="line"><span class="lineno"> 270</span> }</div>
<div class="line"><span class="lineno"> 271</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a7087a5c8f402de41f50d38f7fdf99f74">ruleCount</a>; ++i) {</div>
<div class="line"><span class="lineno"> 272</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d9/dd9/structtrans_rule.html">transRule</a>* rule = nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a6d263fee53d282bdb1536ad2134bd532">rulePool</a>[i];</div>
<div class="line"><span class="lineno"> 273</span> <span class="keywordflow">if</span> (rule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a> == src) {</div>
<div class="line"><span class="lineno"> 274</span> rule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a> = dest;</div>
<div class="line"><span class="lineno"> 275</span> }</div>
<div class="line"><span class="lineno"> 276</span> }</div>
<div class="line"><span class="lineno"> 277</span>}</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a072d13f905ab9438d38d7415df222817">&#9670;&#160;</a></span>subString()</h2>
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<td class="memname">char * subString </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>str</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>begin</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>end</em>&#160;</td>
</tr>
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<td></td>
<td>)</td>
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<p>utility function to create a subString </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">str</td><td>target string </td></tr>
<tr><td class="paramname">begin</td><td>starting index, inclusive </td></tr>
<tr><td class="paramname">end</td><td>ending index, inclusive </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>pointer to the newly created subString </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 177</span> {</div>
<div class="line"><span class="lineno"> 178</span> <span class="keywordtype">char</span>* res = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(end - <a class="code hl_function" href="../../df/dfa/vector_8c.html#a1afee8aaf33d741df31a73048cff4473">begin</a> + 2);</div>
<div class="line"><span class="lineno"> 179</span> strncpy(res, str + <a class="code hl_function" href="../../df/dfa/vector_8c.html#a1afee8aaf33d741df31a73048cff4473">begin</a>, end - <a class="code hl_function" href="../../df/dfa/vector_8c.html#a1afee8aaf33d741df31a73048cff4473">begin</a> + 1);</div>
<div class="line"><span class="lineno"> 180</span> res[end - <a class="code hl_function" href="../../df/dfa/vector_8c.html#a1afee8aaf33d741df31a73048cff4473">begin</a> + 1] = <span class="charliteral">&#39;\0&#39;</span>;</div>
<div class="line"><span class="lineno"> 181</span> <span class="keywordflow">return</span> res;</div>
<div class="line"><span class="lineno"> 182</span>}</div>
<div class="ttc" id="avector_8c_html_a1afee8aaf33d741df31a73048cff4473"><div class="ttname"><a href="../../df/dfa/vector_8c.html#a1afee8aaf33d741df31a73048cff4473">begin</a></div><div class="ttdeci">void * begin(Vector *vec)</div><div class="ttdoc">This function returns the pointer to the begining of the Vector.</div><div class="ttdef"><b>Definition:</b> vector.c:116</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a13eda00dd5efd9440b0eaf5430b73e84">&#9670;&#160;</a></span>test()</h2>
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<td class="memname">static void test </td>
<td>(</td>
<td class="paramtype">void&#160;</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span> </td>
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<p>Self-test implementations. </p>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 572</span> {</div>
<div class="line"><span class="lineno"> 573</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(c|a*b)&quot;</span>, <span class="stringliteral">&quot;c&quot;</span>, 1);</div>
<div class="line"><span class="lineno"> 574</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(c|a*b)&quot;</span>, <span class="stringliteral">&quot;aab&quot;</span>, 1);</div>
<div class="line"><span class="lineno"> 575</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(c|a*b)&quot;</span>, <span class="stringliteral">&quot;ca&quot;</span>, 0);</div>
<div class="line"><span class="lineno"> 576</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(c|a*b)*&quot;</span>, <span class="stringliteral">&quot;caaab&quot;</span>, 1);</div>
<div class="line"><span class="lineno"> 577</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(c|a*b)*&quot;</span>, <span class="stringliteral">&quot;caba&quot;</span>, 0);</div>
<div class="line"><span class="lineno"> 578</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;&quot;</span>, <span class="stringliteral">&quot;&quot;</span>, 1);</div>
<div class="line"><span class="lineno"> 579</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;&quot;</span>, <span class="stringliteral">&quot;1&quot;</span>, 0);</div>
<div class="line"><span class="lineno"> 580</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(0|(1(01*(00)*0)*1)*)*&quot;</span>,<span class="stringliteral">&quot;11&quot;</span>,1);</div>
<div class="line"><span class="lineno"> 581</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(0|(1(01*(00)*0)*1)*)*&quot;</span>,<span class="stringliteral">&quot;110&quot;</span>,1);</div>
<div class="line"><span class="lineno"> 582</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(0|(1(01*(00)*0)*1)*)*&quot;</span>,<span class="stringliteral">&quot;1100&quot;</span>,1);</div>
<div class="line"><span class="lineno"> 583</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(0|(1(01*(00)*0)*1)*)*&quot;</span>,<span class="stringliteral">&quot;10000&quot;</span>,0);</div>
<div class="line"><span class="lineno"> 584</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a>(<span class="stringliteral">&quot;(0|(1(01*(00)*0)*1)*)*&quot;</span>,<span class="stringliteral">&quot;00000&quot;</span>,1);</div>
<div class="line"><span class="lineno"> 585</span> </div>
<div class="line"><span class="lineno"> 586</span> printf(<span class="stringliteral">&quot;All tests have successfully passed!\n&quot;</span>);</div>
<div class="line"><span class="lineno"> 587</span>}</div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a38faadeab39bb48716f1065bc05abec8"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a38faadeab39bb48716f1065bc05abec8">testHelper</a></div><div class="ttdeci">void testHelper(const char *regex, const char *string, const int expected)</div><div class="ttdoc">Testing helper function.</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:540</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#a38faadeab39bb48716f1065bc05abec8">&#9670;&#160;</a></span>testHelper()</h2>
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<td class="memname">void testHelper </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>regex</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>string</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int&#160;</td>
<td class="paramname"><em>expected</em>&#160;</td>
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<td>)</td>
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<p>Testing helper function. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">regex</td><td>the regular expression to be used </td></tr>
<tr><td class="paramname">string</td><td>the string to match against </td></tr>
<tr><td class="paramname">expected</td><td>expected results </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 540</span> {</div>
<div class="line"><span class="lineno"> 541</span> <span class="keywordtype">char</span>* temp = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#ae9a5eac7c0d8ac478eb1b97529638fb6">preProcessing</a>(regex);</div>
<div class="line"><span class="lineno"> 542</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d8/d66/struct_a_s_t_node.html">ASTNode</a>* <a class="code hl_struct" href="../../d5/da1/structnode.html">node</a> = <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a496e9b4e45417ac56dac40bbbb769d7a">buildAST</a>(temp);</div>
<div class="line"><span class="lineno"> 543</span> </div>
<div class="line"><span class="lineno"> 544</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d3/dd7/struct_n_f_a.html">NFA</a>* nfa = compileFromAST(<a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>);</div>
<div class="line"><span class="lineno"> 545</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a86e0f235783b005e4e6e951c9603bbe1">postProcessing</a>(nfa);</div>
<div class="line"><span class="lineno"> 546</span> </div>
<div class="line"><span class="lineno"> 547</span> <span class="comment">// reallocates the outermost NFA&#39;s current states pool</span></div>
<div class="line"><span class="lineno"> 548</span> <span class="comment">// because it will actually be used to store all the states</span></div>
<div class="line"><span class="lineno"> 549</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a> = realloc(nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a>, <span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>*) * 100);</div>
<div class="line"><span class="lineno"> 550</span> <span class="comment">// Starts the NFA by adding its starting state to the pool</span></div>
<div class="line"><span class="lineno"> 551</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a>[nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a>++] = nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#aaf1fe7a48e3990c7cc9ec5cba8c82d02">statePool</a>[0];</div>
<div class="line"><span class="lineno"> 552</span> </div>
<div class="line"><span class="lineno"> 553</span> <span class="comment">// feeds empty characters into the NFA before and after</span></div>
<div class="line"><span class="lineno"> 554</span> <span class="comment">// every normal character</span></div>
<div class="line"><span class="lineno"> 555</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; strlen(<span class="keywordtype">string</span>); ++i) {</div>
<div class="line"><span class="lineno"> 556</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aebe16fbf12c8ac089501ebcae6f0c050">transit</a>(nfa, <span class="charliteral">&#39;\0&#39;</span>);</div>
<div class="line"><span class="lineno"> 557</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aebe16fbf12c8ac089501ebcae6f0c050">transit</a>(nfa, <span class="keywordtype">string</span>[i]);</div>
<div class="line"><span class="lineno"> 558</span> }</div>
<div class="line"><span class="lineno"> 559</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aebe16fbf12c8ac089501ebcae6f0c050">transit</a>(nfa, <span class="charliteral">&#39;\0&#39;</span>);</div>
<div class="line"><span class="lineno"> 560</span> </div>
<div class="line"><span class="lineno"> 561</span> assert(<a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a2dabcd5c410a4b0cac1b4ab378c9dcdc">isAccepting</a>(nfa) == expected);</div>
<div class="line"><span class="lineno"> 562</span> </div>
<div class="line"><span class="lineno"> 563</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a684ed3494e22ee17d7b3e19a4d1fe977">destroyNFA</a>(nfa);</div>
<div class="line"><span class="lineno"> 564</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a6a97ab2db6392f262b03370689872348">destroyNode</a>(<a class="code hl_struct" href="../../d5/da1/structnode.html">node</a>);</div>
<div class="line"><span class="lineno"> 565</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(temp);</div>
<div class="line"><span class="lineno"> 566</span>}</div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_a2dabcd5c410a4b0cac1b4ab378c9dcdc"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a2dabcd5c410a4b0cac1b4ab378c9dcdc">isAccepting</a></div><div class="ttdeci">int isAccepting(const struct NFA *nfa)</div><div class="ttdoc">determines whether the NFA is currently in its accepting state</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:522</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_ae9a5eac7c0d8ac478eb1b97529638fb6"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#ae9a5eac7c0d8ac478eb1b97529638fb6">preProcessing</a></div><div class="ttdeci">char * preProcessing(const char *input)</div><div class="ttdoc">performs preprocessing on a regex string, making all implicit concatenations explicit</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:109</div></div>
<div class="ttc" id="amcnaughton__yamada__thompson_8c_html_aebe16fbf12c8ac089501ebcae6f0c050"><div class="ttname"><a href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#aebe16fbf12c8ac089501ebcae6f0c050">transit</a></div><div class="ttdeci">void transit(struct NFA *nfa, char input)</div><div class="ttdoc">moves a NFA forward</div><div class="ttdef"><b>Definition:</b> mcnaughton_yamada_thompson.c:465</div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#aebe16fbf12c8ac089501ebcae6f0c050">&#9670;&#160;</a></span>transit()</h2>
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<td class="memname">void transit </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d3/dd7/struct_n_f_a.html">NFA</a> *&#160;</td>
<td class="paramname"><em>nfa</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">char&#160;</td>
<td class="paramname"><em>input</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>moves a <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> forward </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nfa</td><td>target <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </td></tr>
<tr><td class="paramname">input</td><td>the character to be fed into the <a class="el" href="../../d3/dd7/struct_n_f_a.html" title="Definition for the NFA itself.">NFA</a> </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>void </dd></dl>
<div class="fragment"><div class="line"><span class="lineno"> 465</span> {</div>
<div class="line"><span class="lineno"> 466</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>** newStates = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>*) * 10);</div>
<div class="line"><span class="lineno"> 467</span> <span class="keywordtype">int</span> NSCount = 0;</div>
<div class="line"><span class="lineno"> 468</span> </div>
<div class="line"><span class="lineno"> 469</span> <span class="keywordflow">if</span> (input == <span class="charliteral">&#39;\0&#39;</span>) {</div>
<div class="line"><span class="lineno"> 470</span> <span class="comment">// In case of empty character input, it&#39;s possible for</span></div>
<div class="line"><span class="lineno"> 471</span> <span class="comment">// a state to transit to another state that&#39;s more than</span></div>
<div class="line"><span class="lineno"> 472</span> <span class="comment">// one rule away, we need to take that into account</span></div>
<div class="line"><span class="lineno"> 473</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a> - 1; i &gt; -1; --i) {</div>
<div class="line"><span class="lineno"> 474</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *pState = nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a>[i];</div>
<div class="line"><span class="lineno"> 475</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a>--;</div>
<div class="line"><span class="lineno"> 476</span> </div>
<div class="line"><span class="lineno"> 477</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>** states = <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a725f50ecaf1959d96de79b36b4788fee">malloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a>*) * 10);</div>
<div class="line"><span class="lineno"> 478</span> <span class="keywordtype">int</span> sc = 0;</div>
<div class="line"><span class="lineno"> 479</span> <a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a34774f1859a742ea1c3eaf3f6726b66c">findEmpty</a>(pState, states, &amp;sc);</div>
<div class="line"><span class="lineno"> 480</span> </div>
<div class="line"><span class="lineno"> 481</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; sc; ++j) {</div>
<div class="line"><span class="lineno"> 482</span> <span class="keywordflow">if</span>(!<a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a709e32f5905536216abb03efb4f4db2b">contains</a>(newStates,NSCount, states[j])) {</div>
<div class="line"><span class="lineno"> 483</span> newStates[NSCount++] = states[j];</div>
<div class="line"><span class="lineno"> 484</span> }</div>
<div class="line"><span class="lineno"> 485</span> }</div>
<div class="line"><span class="lineno"> 486</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(states);</div>
<div class="line"><span class="lineno"> 487</span> }</div>
<div class="line"><span class="lineno"> 488</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><span class="lineno"> 489</span> <span class="comment">// Iterates through all current states</span></div>
<div class="line"><span class="lineno"> 490</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a> - 1; i &gt; -1; --i) {</div>
<div class="line"><span class="lineno"> 491</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d4/d97/struct_n_f_a_state.html">NFAState</a> *pState = nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a>[i];</div>
<div class="line"><span class="lineno"> 492</span> <span class="comment">// Gradually empties the current states pool, so</span></div>
<div class="line"><span class="lineno"> 493</span> <span class="comment">// it can be refilled</span></div>
<div class="line"><span class="lineno"> 494</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a>--;</div>
<div class="line"><span class="lineno"> 495</span> </div>
<div class="line"><span class="lineno"> 496</span> <span class="comment">// Iterates through rules of this state</span></div>
<div class="line"><span class="lineno"> 497</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> j = 0; j &lt; pState-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aab70804a0b5849410e61f51a225d3072">ruleCount</a>; ++j) {</div>
<div class="line"><span class="lineno"> 498</span> <span class="keyword">const</span> <span class="keyword">struct </span><a class="code hl_struct" href="../../d9/dd9/structtrans_rule.html">transRule</a> *pRule = pState-&gt;<a class="code hl_variable" href="../../d4/d97/struct_n_f_a_state.html#aca9718d26eff08bb41418c5ec3442381">rules</a>[j];</div>
<div class="line"><span class="lineno"> 499</span> </div>
<div class="line"><span class="lineno"> 500</span> <span class="keywordflow">if</span>(pRule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#abd89c7bca6969150c7bbf7d888e4aa6b">cond</a> == input) {</div>
<div class="line"><span class="lineno"> 501</span> <span class="keywordflow">if</span>(!<a class="code hl_function" href="../../dd/d2e/mcnaughton__yamada__thompson_8c.html#a709e32f5905536216abb03efb4f4db2b">contains</a>(newStates, NSCount, pRule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a>)) {</div>
<div class="line"><span class="lineno"> 502</span> newStates[NSCount++] = pRule-&gt;<a class="code hl_variable" href="../../d9/dd9/structtrans_rule.html#a3459db0aa62824b51da3297e431900bd">target</a>;</div>
<div class="line"><span class="lineno"> 503</span> }</div>
<div class="line"><span class="lineno"> 504</span> }</div>
<div class="line"><span class="lineno"> 505</span> }</div>
<div class="line"><span class="lineno"> 506</span> }</div>
<div class="line"><span class="lineno"> 507</span> }</div>
<div class="line"><span class="lineno"> 508</span> </div>
<div class="line"><span class="lineno"> 509</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#a38e4fdb290def5942dc14eff7c6211ba">CSCount</a> = NSCount;</div>
<div class="line"><span class="lineno"> 510</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; NSCount; ++i) {</div>
<div class="line"><span class="lineno"> 511</span> nfa-&gt;<a class="code hl_variable" href="../../d3/dd7/struct_n_f_a.html#ad400f1830095be00a7fdff804d6405c0">currentStates</a>[i] = newStates[i];</div>
<div class="line"><span class="lineno"> 512</span> }</div>
<div class="line"><span class="lineno"> 513</span> <a class="code hl_define" href="../../d2/ddd/malloc__dbg_8h.html#a9cc854374299a1dd933bf62029761768">free</a>(newStates);</div>
<div class="line"><span class="lineno"> 514</span>}</div>
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