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#include "../stdafx.h"
const int WCMatcher::MATCH_ENTIRE_STRING = 0x01;
/*
Detailed documentation is provided in this class' header file
@author Jeffery Stuart
@since November 2004
@version 1.07.00
*/
WCMatcher::WCMatcher(WCPattern *pattern, const CMString &text)
{
pat = pattern;
str = &text;
gc = pattern->groupCount;
ncgc = -pattern->nonCapGroupCount;
flags = 0;
matchedSomething = false;
starts = new int[gc + ncgc];
ends = new int[gc + ncgc];
groups = new int[gc + ncgc];
groupPos = new int[gc + ncgc];
groupIndeces = new int[gc + ncgc];
starts = starts + ncgc;
ends = ends + ncgc;
groups = groups + ncgc;
groupPos = groupPos + ncgc;
groupIndeces = groupIndeces + ncgc;
for (int i = 0; i < gc; ++i) starts[i] = ends[i] = 0;
}
WCMatcher::~WCMatcher()
{
delete[](starts - ncgc);
delete[](ends - ncgc);
delete[](groups - ncgc);
delete[](groupIndeces - ncgc);
delete[](groupPos - ncgc);
}
void WCMatcher::clearGroups()
{
int i;
lm = 0;
for (i = 0; i < gc; ++i) groups[i] = starts[i] = ends[i] = -1;
for (i = 1; i <= ncgc; ++i) groups[0 - i] = starts[0 - i] = ends[0 - i] = -1;
}
CMString WCMatcher::replaceWithGroups(const CMString &pStr)
{
CMString ret;
CMString t = pStr;
while (t.GetLength() > 0) {
if (t[0] == '\\') {
t.Delete(0);
if (t.GetLength() == 0)
ret += L"\\";
else if (t[0] < '0' || t[0] > '9') {
ret += t[0];
t.Delete(0);
}
else {
int gn = 0;
while (t.GetLength() > 0 && t[0] >= '0' && t[0] <= '9')
{
gn = gn * 10 + (t[0] - '0');
t.Delete(0);
}
ret += getGroup(gn);
}
}
else {
ret += t[0];
t.Delete(0);
}
}
return ret;
}
unsigned long WCMatcher::getFlags() const
{
return flags;
}
const CMString& WCMatcher::getText() const
{
return *str;
}
bool WCMatcher::matches()
{
flags = MATCH_ENTIRE_STRING;
matchedSomething = false;
clearGroups();
lm = 0;
return pat->head->match(*str, this, 0) == str->GetLength();
}
bool WCMatcher::findFirstMatch()
{
starts[0] = 0;
flags = 0;
clearGroups();
start = 0;
lm = 0;
ends[0] = pat->head->match(*str, this, 0);
if (ends[0] >= 0) {
matchedSomething = true;
return 1;
}
return 0;
}
bool WCMatcher::findNextMatch()
{
int s = starts[0], e = ends[0];
if (!matchedSomething) return findFirstMatch();
if (s == e) ++e;
flags = 0;
clearGroups();
starts[0] = e;
if (e >= str->GetLength()) return 0;
start = e;
lm = e;
ends[0] = pat->head->match(*str, this, e);
return ends[0] >= 0;
}
std::vector<CMString> WCMatcher::findAll()
{
std::vector<CMString> ret;
reset();
while (findNextMatch())
ret.push_back(getGroup());
return ret;
}
void WCMatcher::reset()
{
lm = 0;
clearGroups();
matchedSomething = false;
}
int WCMatcher::getStartingIndex(const int groupNum) const
{
if (groupNum < 0 || groupNum >= gc)
return -1;
return starts[groupNum];
}
int WCMatcher::getEndingIndex(const int groupNum) const
{
if (groupNum < 0 || groupNum >= gc)
return -1;
return ends[groupNum];
}
CMString WCMatcher::getGroup(const int groupNum) const
{
if (groupNum < 0 || groupNum >= gc) return L"";
if (starts[groupNum] < 0 || ends[groupNum] < 0) return L"";
return str->Mid(starts[groupNum], ends[groupNum] - starts[groupNum]);
}
std::vector<CMString> WCMatcher::getGroups(const bool includeGroupZero) const
{
std::vector<CMString> ret;
for (int i = (includeGroupZero ? 0 : 1); i < gc; ++i)
ret.push_back(getGroup(i));
return ret;
}
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