RegEx::~RegEx()
{
ClearMatchList();
delete ovector;
if (pe)
pcre_free(pe);
pcre_free(re);
}
bool RegEx::Search(const char * subject, int len, int options)
{
ClearMatchList();
subjectStr = subject;
lastStart = 0;
subjectLen = (len >= 0) ? len : strlen(subject);
lastMatches = pcre_exec(re, pe, subjectStr, subjectLen, 0, options, ovector, 3*substrcount);
return lastMatches > 0;
}
RegEx::~RegEx()
{
ClearMatchList();
if (ovector != NULL)
{
delete [] ovector;
}
if (pe)
{
if (allocated_study && study_size)
{
pcre_free(pe->study_data);
}
pcre_free(pe);
}
pcre_free(re);
}
bool RegEx::SearchAt(const char* subject, ///< the string to be searched for a match
int offset, ///< offset to begin search in subject string
int len, ///< offset to begin search in subject string
int options ///< sum of any PCRE options flags
)
{
/*
* Search the subject string for matches to this regular expression
* @returns true if a match is found.
*/
ClearMatchList();
subjectStr = subject;
lastStart = 0;
subjectLen = (len >= 0) ? len : strlen(subject);
lastMatches = pcre_exec(re, pe, subject, subjectLen, offset, options, ovector, 3*substrcount);
return lastMatches > 0;
}
bool RegEx::SearchAgain(int options)
{
ClearMatchList();
bool matched;
lastStart = ovector[1];
if (lastStart < subjectLen)
{
lastMatches = pcre_exec(re, pe, subjectStr, subjectLen, lastStart, options,
ovector, 3*substrcount);
matched = lastMatches > 0;
}
else
{
// The last search matched the entire subject string
// If the pattern allows a null string to match, then another call to pcre_exec
// would return that match, so don't do that.
// Instead, return no match to prevent an infinite loop.
matched = false;
}
return matched;
}
bool RegEx::SearchAgain(int options)
{
ClearMatchList();
return pcre_exec(re, pe, lastsubject, slen, ovector[1], options, ovector, 3*substrcount) > 0;
}
bool RegEx::Search(const char * subject, int len, int options)
{
ClearMatchList();
return pcre_exec(re, pe, lastsubject = subject, slen = (len >= 0) ? len : strlen(subject), 0, options, ovector, 3*substrcount) > 0;
}