1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/extensions/regex/CRegEx.cpp	Sun Mar 30 07:00:22 2008 +0000
     1.3 @@ -0,0 +1,124 @@
     1.4 +#include "pcre.h"
     1.5 +#include "CRegEx.h"
     1.6 +#include <sh_string.h>
     1.7 +#include "extension.h"
     1.8 +
     1.9 +RegEx::RegEx()
    1.10 +{
    1.11 +	mErrorOffset = 0;
    1.12 +	mError = NULL;
    1.13 +	re = NULL;
    1.14 +	mFree = true;
    1.15 +	subject = NULL;
    1.16 +	mSubStrings = 0;
    1.17 +}
    1.18 +
    1.19 +void RegEx::Clear ()
    1.20 +{
    1.21 +	mErrorOffset = 0;
    1.22 +	mError = NULL;
    1.23 +	if (re)
    1.24 +		pcre_free(re);
    1.25 +	re = NULL;
    1.26 +	mFree = true;
    1.27 +	if (subject)
    1.28 +		delete [] subject;
    1.29 +	subject = NULL;
    1.30 +	mSubStrings = 0;
    1.31 +}
    1.32 +
    1.33 +RegEx::~RegEx()
    1.34 +{
    1.35 +	Clear();
    1.36 +}
    1.37 +
    1.38 +bool RegEx::isFree(bool set, bool val)
    1.39 +{
    1.40 +	if (set)
    1.41 +	{
    1.42 +		mFree = val;
    1.43 +		return true;
    1.44 +	} else {
    1.45 +		return mFree;
    1.46 +	}
    1.47 +}
    1.48 +
    1.49 +int RegEx::Compile(const char *pattern, int iFlags)
    1.50 +{
    1.51 +	if (!mFree)
    1.52 +		Clear();
    1.53 +		
    1.54 +	re = pcre_compile(pattern, iFlags, &mError, &mErrorOffset, NULL);
    1.55 +
    1.56 +	if (re == NULL)
    1.57 +	{
    1.58 +		return 0;
    1.59 +	}
    1.60 +
    1.61 +	mFree = false;
    1.62 +
    1.63 +	return 1;
    1.64 +}
    1.65 +
    1.66 +int RegEx::Match(const char *str)
    1.67 +{
    1.68 +	int rc = 0;
    1.69 +
    1.70 +	if (mFree || re == NULL)
    1.71 +		return -1;
    1.72 +		
    1.73 +	this->ClearMatch();
    1.74 +
    1.75 +	//save str
    1.76 +	subject = new char[strlen(str)+1];
    1.77 +	strcpy(subject, str);
    1.78 +
    1.79 +	rc = pcre_exec(re, NULL, subject, (int)strlen(subject), 0, 0, ovector, 30);
    1.80 +
    1.81 +	if (rc < 0)
    1.82 +	{
    1.83 +		if (rc == PCRE_ERROR_NOMATCH)
    1.84 +		{
    1.85 +			return 0;
    1.86 +		} else {
    1.87 +			mErrorOffset = rc;
    1.88 +			return -1;
    1.89 +		}
    1.90 +	}
    1.91 +
    1.92 +	mSubStrings = rc;
    1.93 +
    1.94 +	return 1;
    1.95 +}
    1.96 +void RegEx::ClearMatch()
    1.97 +{
    1.98 +	// Clears match results
    1.99 +	mErrorOffset = 0;
   1.100 +	mError = NULL;
   1.101 +	if (subject)
   1.102 +		delete [] subject;
   1.103 +	subject = NULL;
   1.104 +	mSubStrings = 0;
   1.105 +}
   1.106 +
   1.107 +const char *RegEx::GetSubstring(int s, char buffer[], int max)
   1.108 +{
   1.109 +	int i = 0;
   1.110 +	if (s >= mSubStrings || s < 0)
   1.111 +		return NULL;
   1.112 +
   1.113 +	char *substr_a = subject + ovector[2*s];
   1.114 +	int substr_l = ovector[2*s+1] - ovector[2*s];
   1.115 +
   1.116 +	for (i = 0; i<substr_l; i++)
   1.117 +	{
   1.118 +		if (i >= max)
   1.119 +			break;
   1.120 +		buffer[i] = substr_a[i];
   1.121 +	}
   1.122 +
   1.123 +	buffer[i] = '\0';
   1.124 +
   1.125 +	return buffer;
   1.126 +}
   1.127 +