1 files changed, 78 insertions, 0 deletions

diff --git a/src/regexp.cpp b/src/regexp.cpp
new file mode 100644
index 0000000..f79be97
--- /dev/null
+++ b/src/regexp.cpp
@@ -0,0 +1,78 @@
+#include "regexp.h"
+#include "build.h" // For BuildException
+#include "staticstring.h"
+
+RegExp::RegExp() :
+        bCompiled( false ),
+        aSubStr( NULL )
+{
+}
+
+RegExp::RegExp( const char *sSrc ) :
+        bCompiled( false ),
+        aSubStr( NULL )
+{
+        compile( sSrc );
+}
+
+RegExp::~RegExp()
+{
+        if( bCompiled )
+        {
+                regfree( &re );
+                delete[] aSubStr;
+        }
+}
+
+void RegExp::compile( const char *sSrc )
+{
+        if( bCompiled )
+        {
+                regfree( &re );
+                delete[] aSubStr;
+                bCompiled = false;
+        }
+
+        int nErr = regcomp( &re, sSrc, REG_EXTENDED|REG_NEWLINE );
+        if( nErr )
+        {
+                size_t length = regerror( nErr, &re, NULL, 0 );
+                char *buffer = new char[length];
+                (void) regerror( nErr, &re, buffer, length );
+                StaticString s( buffer );
+                delete[] buffer;
+                throw BuildException( s.getString() );
+        }
+        bCompiled = true;
+        this->sSrc = sSrc;
+
+        nSubStr = re.re_nsub+1;
+        aSubStr = new regmatch_t[nSubStr];
+}
+
+int RegExp::getNumSubStrings()
+{
+        return nSubStr;
+}
+
+bool RegExp::execute( const char *sSrc )
+{
+        sTest = sSrc;
+        if( regexec( &re, sSrc, nSubStr, aSubStr, 0 ) )
+                return false;
+        return true;
+}
+
+std::pair<int,int> RegExp::getSubStringRange( int nIndex )
+{
+        return std::pair<int,int>( aSubStr[nIndex].rm_so, aSubStr[nIndex].rm_eo );
+}
+
+std::string RegExp::getSubString( int nIndex )
+{
+        return std::string(
+                sTest.getString()+aSubStr[nIndex].rm_so,
+                aSubStr[nIndex].rm_eo - aSubStr[nIndex].rm_so
+                );
+}
+