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/*
* regexranges.cpp
*
* Created on: Apr 11, 2009
* Author: Lorenzo Bettini <http://www.lorenzobettini.it>, (C) 2008
* Copyright: See COPYING file that comes with this distribution
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "regexranges.h"
namespace srchilite {
RegexRanges::RegexRanges() :
currentRegex(0) {
}
RegexRanges::~RegexRanges() {
}
bool RegexRanges::addRegexRange(const std::string &s) {
try {
ranges.push_back(boost::regex(s));
} catch (boost::regex_error &e) {
return false;
}
return true;
}
const boost::regex *RegexRanges::matches(const std::string &line) {
for (RegexRangesType::const_iterator it = ranges.begin(); it
!= ranges.end(); ++it) {
if (boost::regex_search(line, *it)) {
return &(*it);
}
}
return 0;
}
bool RegexRanges::isInRange(const std::string &line) {
// if the current regular expression is null, then we still
// haven't found the starting of the range
if (!currentRegex) {
currentRegex = matches(line);
// note that even if we found a matching regular expression,
// the delimiters of the range must not be considered
return false;
} else {
// we're already inside a range, and to find the end of it
// we must match the current regex
if (boost::regex_search(line, *currentRegex)) {
// ok we found the end of the range
// so first, reset current regular expression
currentRegex = 0;
return false;
}
}
// if we're here, we're still in range
return true;
}
}
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