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75 lines
1.6 KiB
C
75 lines
1.6 KiB
C
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// -*- C++ -*-
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/* C++ wrapper around the POSIX regex functions:
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regcomp, regexec, regerror, regfree.
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*/
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#ifndef LREGEX_H
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#define LREGEX_H
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#ifdef __GNUG__
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#pragma interface
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#endif
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#include <vector>
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#include "LString.h"
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///
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class LRegex {
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public:
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///
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LRegex(string const & regex);
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///
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~LRegex();
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///
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typedef pair<string::size_type, string::size_type> MatchPair;
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///
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typedef vector<MatchPair> SubMatches;
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/// Returns all the matches in a vector
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SubMatches const & exec(string const & str) const;
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/// The whole of str matches regex.
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bool exact_match(string const & str) const;
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///
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MatchPair first_match(string const & str) const;
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///
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string getError() const;
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///
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int getErrorCode() const;
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/// Will the next operation fail of not.
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bool ok() const;
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private:
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///
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struct Impl;
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///
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Impl * impl;
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};
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// We comment out these, we can comment them in when we need them.
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#if 0
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// some built in regular expressions
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extern const LRegex LRXwhite; // = "[ \n\t\r\v\f]+"
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extern const LRegex LRXint; // = "-?[0-9]+"
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extern const LRegex LRXdouble; // = "-?\\(\\([0-9]+\\.[0-9]*\\)\\|
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// \\([0-9]+\\)\\|\\(\\.[0-9]+\\)\\)
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// \\([eE][---+]?[0-9]+\\)?"
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//extern const LRegex LRXalpha; // = "[A-Za-z]+"
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//extern const LRegex LRXlowercase; // = "[a-z]+"
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//extern const LRegex LRXuppercase; // = "[A-Z]+"
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//extern const LRegex LRXalphanum; // = "[0-9A-Za-z]+"
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extern const LRegex LRXidentifier; // = "[A-Za-z_][A-Za-z0-9_]*"
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#endif
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#endif
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