diff options
Diffstat (limited to '')
-rw-r--r-- | src/regexp.cpp | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/regexp.cpp b/src/regexp.cpp new file mode 100644 index 0000000..ff2d09a --- /dev/null +++ b/src/regexp.cpp | |||
@@ -0,0 +1,71 @@ | |||
1 | #include "regexp.h" | ||
2 | #include "builder.h" // For BuildException | ||
3 | #include "staticstring.h" | ||
4 | |||
5 | RegExp::RegExp() : | ||
6 | bCompiled( false ), | ||
7 | aSubStr( NULL ) | ||
8 | { | ||
9 | } | ||
10 | |||
11 | RegExp::RegExp( const char *sSrc ) : | ||
12 | bCompiled( false ), | ||
13 | aSubStr( NULL ) | ||
14 | { | ||
15 | compile( sSrc ); | ||
16 | } | ||
17 | |||
18 | RegExp::~RegExp() | ||
19 | { | ||
20 | regfree( &re ); | ||
21 | delete[] aSubStr; | ||
22 | } | ||
23 | |||
24 | void RegExp::compile( const char *sSrc ) | ||
25 | { | ||
26 | if( bCompiled ) | ||
27 | throw BuildException("Already compiled."); | ||
28 | |||
29 | int nErr = regcomp( &re, sSrc, REG_EXTENDED|REG_NEWLINE ); | ||
30 | if( nErr ) | ||
31 | { | ||
32 | size_t length = regerror( nErr, &re, NULL, 0 ); | ||
33 | char *buffer = new char[length]; | ||
34 | (void) regerror( nErr, &re, buffer, length ); | ||
35 | StaticString s( buffer ); | ||
36 | delete[] buffer; | ||
37 | throw BuildException( s.getString() ); | ||
38 | } | ||
39 | bCompiled = true; | ||
40 | this->sSrc = sSrc; | ||
41 | |||
42 | nSubStr = re.re_nsub+1; | ||
43 | aSubStr = new regmatch_t[nSubStr]; | ||
44 | } | ||
45 | |||
46 | int RegExp::getNumSubStrings() | ||
47 | { | ||
48 | return nSubStr; | ||
49 | } | ||
50 | |||
51 | bool RegExp::execute( const char *sSrc ) | ||
52 | { | ||
53 | sTest = sSrc; | ||
54 | if( regexec( &re, sSrc, nSubStr, aSubStr, 0 ) ) | ||
55 | return false; | ||
56 | return true; | ||
57 | } | ||
58 | |||
59 | std::pair<int,int> RegExp::getSubStringRange( int nIndex ) | ||
60 | { | ||
61 | return std::pair<int,int>( aSubStr[nIndex].rm_so, aSubStr[nIndex].rm_eo ); | ||
62 | } | ||
63 | |||
64 | std::string RegExp::getSubString( int nIndex ) | ||
65 | { | ||
66 | return std::string( | ||
67 | sTest.getString()+aSubStr[nIndex].rm_so, | ||
68 | aSubStr[nIndex].rm_eo - aSubStr[nIndex].rm_so | ||
69 | ); | ||
70 | } | ||
71 | |||