mirror of
https://github.com/alliedmodders/amxmodx.git
synced 2024-12-27 07:15:37 +03:00
48022d3c5c
Also commented in the include file a bit better.
162 lines
2.1 KiB
C++
Executable File
162 lines
2.1 KiB
C++
Executable File
#include "pcre.h"
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#include "CRegEx.h"
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#include <string.h>
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#include "amxxmodule.h"
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RegEx::RegEx()
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{
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mErrorOffset = 0;
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mError = NULL;
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re = NULL;
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mFree = true;
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subject = NULL;
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mSubStrings = 0;
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}
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void RegEx::Clear()
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{
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mErrorOffset = 0;
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mError = NULL;
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if (re)
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pcre_free(re);
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re = NULL;
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mFree = true;
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if (subject)
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delete [] subject;
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subject = NULL;
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mSubStrings = 0;
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}
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RegEx::~RegEx()
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{
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Clear();
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}
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bool RegEx::isFree(bool set, bool val)
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{
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if (set)
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{
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mFree = val;
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return true;
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} else {
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return mFree;
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}
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}
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int RegEx::Compile(const char *pattern, const char* flags)
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{
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if (!mFree)
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Clear();
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int iFlags = 0;
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if (flags != NULL)
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{
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for ( ; *flags != 0; flags++)
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{
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switch (*flags)
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{
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case 'i':
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{
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iFlags |= PCRE_CASELESS;
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break;
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}
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case 'm':
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{
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iFlags |= PCRE_MULTILINE;
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break;
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}
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case 's':
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{
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iFlags |= PCRE_DOTALL;
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break;
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}
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case 'x':
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{
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iFlags |= PCRE_EXTENDED;
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break;
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}
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default:
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{
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break;
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}
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}
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}
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}
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re = pcre_compile(pattern, iFlags, &mError, &mErrorOffset, NULL);
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if (re == NULL)
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{
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return 0;
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}
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mFree = false;
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return 1;
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}
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int RegEx::Match(const char *str)
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{
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int rc = 0;
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if (mFree || re == NULL)
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return -1;
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this->ClearMatch();
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//save str
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subject = new char[strlen(str)+1];
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strcpy(subject, str);
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rc = pcre_exec(re, NULL, subject, (int)strlen(subject), 0, 0, ovector, 30);
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if (rc < 0)
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{
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if (rc == PCRE_ERROR_NOMATCH)
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{
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return 0;
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} else {
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mErrorOffset = rc;
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return -1;
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}
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}
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mSubStrings = rc;
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return 1;
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}
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void RegEx::ClearMatch()
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{
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// Clears match results
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mErrorOffset = 0;
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mError = NULL;
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if (subject)
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delete [] subject;
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subject = NULL;
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mSubStrings = 0;
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}
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const char *RegEx::GetSubstring(int s, char buffer[], int max)
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{
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int i = 0;
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if (s >= mSubStrings || s < 0)
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return NULL;
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char *substr_a = subject + ovector[2*s];
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int substr_l = ovector[2*s+1] - ovector[2*s];
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for (i = 0; i<substr_l; i++)
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{
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if (i >= max)
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break;
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buffer[i] = substr_a[i];
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}
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buffer[i] = '\0';
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return buffer;
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}
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