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<font color="#0000ff">// Copyright (c) 1999-2002 David Muse</font>
<font color="#0000ff">// See the COPYING file for more information.</font>
<font color="#a020f0">#ifndef RUDIMENTS_REGEXP_H</font>
<font color="#a020f0">#define RUDIMENTS_REGEXP_H</font>
<font color="#a020f0">#include </font><font color="#ff00ff"><rudiments/private/regularexpressionincludes.h></font>
<font color="#0000ff">// The regular expression class provides methods for making comparisons</font>
<font color="#0000ff">// between text and regular expressions.</font>
<font color="#0000ff">//</font>
<font color="#0000ff">// Regular expressions are complex, powerful, used in command line</font>
<font color="#0000ff">// programs like grep, sed and find, and extensively in Perl.</font>
<font color="#a020f0">#ifdef RUDIMENTS_NAMESPACE</font>
<font color="#2e8b57"><b>namespace</b></font> rudiments {
<font color="#a020f0">#endif</font>
<font color="#2e8b57"><b>class</b></font> regularexpressionprivate;
<font color="#2e8b57"><b>class</b></font> regularexpression {
<font color="#a52a2a"><b>public</b></font>:
<font color="#0000ff">// if you need to do a quick comparison, use this method</font>
<font color="#2e8b57"><b>static</b></font> <font color="#2e8b57"><b>bool</b></font> match(<font color="#2e8b57"><b>const</b></font> <font color="#2e8b57"><b>char</b></font> *str, <font color="#2e8b57"><b>const</b></font> <font color="#2e8b57"><b>char</b></font> *pattern);
<font color="#0000ff">// Returns true if "str" matches "pattern"</font>
<font color="#0000ff">// and false if "str" doesn't match "pattern".</font>
<font color="#0000ff">// if you need to do many comparisons against a single</font>
<font color="#0000ff">// expression, use these methods</font>
regularexpression();
regularexpression(<font color="#2e8b57"><b>const</b></font> <font color="#2e8b57"><b>char</b></font> *pattern);
<font color="#0000ff">// this constructor calls the compile method</font>
<font color="#0000ff">// below during initialization</font>
~regularexpression();
<font color="#2e8b57"><b>bool</b></font> compile(<font color="#2e8b57"><b>const</b></font> <font color="#2e8b57"><b>char</b></font> *pattern);
<font color="#0000ff">// Compiles the regular expression given in</font>
<font color="#0000ff">// "pattern".</font>
<font color="#0000ff">//</font>
<font color="#0000ff">// Returns true if the compilation </font>
<font color="#0000ff">// succeeded and false if it failed.</font>
<font color="#2e8b57"><b>bool</b></font> study();
<font color="#0000ff">// Studies the previously compiled pattern so it can be</font>
<font color="#0000ff">// executed faster. If you plan on calling match()</font>
<font color="#0000ff">// several times on this pattern, studying it may be</font>
<font color="#0000ff">// worthwhile. If not, the studying the pattern may</font>
<font color="#0000ff">// take longer than the time saved by studying it.</font>
<font color="#0000ff">//</font>
<font color="#0000ff">// Returns true if the study succeeded</font>
<font color="#0000ff">// and false if if failed.</font>
<font color="#2e8b57"><b>bool</b></font> match(<font color="#2e8b57"><b>const</b></font> <font color="#2e8b57"><b>char</b></font> *str);
<font color="#0000ff">// Matches "str" against the regular expression</font>
<font color="#0000ff">// compiled earlier using the compile method.</font>
<font color="#0000ff">//</font>
<font color="#0000ff">// Returns true if the match was successful and</font>
<font color="#0000ff">// false if it was not.</font>
<font color="#2e8b57"><b>int</b></font> getSubstringCount();
<font color="#0000ff">// Returns the number of substrings of "str" passed into</font>
<font color="#0000ff">// match() that match "pattern" passed into compile().</font>
<font color="#2e8b57"><b>char</b></font> *getSubstringStart(<font color="#2e8b57"><b>int</b></font> index);
<font color="#0000ff">// Returns the "index"'th matching substring or NULL</font>
<font color="#0000ff">// if index is invalid.</font>
<font color="#2e8b57"><b>char</b></font> *getSubstringEnd(<font color="#2e8b57"><b>int</b></font> index);
<font color="#0000ff">// Returns the data directly after the "index"'th</font>
<font color="#0000ff">// matching substring or NULL if index is invalid.</font>
<font color="#2e8b57"><b>int</b></font> getSubstringStartOffset(<font color="#2e8b57"><b>int</b></font> index);
<font color="#0000ff">// Returns the offset of the "index"'th matching</font>
<font color="#0000ff">// substring or -1 if index is invalid.</font>
<font color="#2e8b57"><b>int</b></font> getSubstringEndOffset(<font color="#2e8b57"><b>int</b></font> index);
<font color="#0000ff">// Returns the offset of the data directly after the</font>
<font color="#0000ff">// "index"'th matching substring or -1 if index is</font>
<font color="#0000ff">// invalid.</font>
<font color="#a020f0"> #include </font><font color="#ff00ff"><rudiments/private/regularexpression.h></font>
};
<font color="#a020f0">#ifdef RUDIMENTS_NAMESPACE</font>
}
<font color="#a020f0">#endif</font>
<font color="#a020f0">#endif</font>
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