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/*
* Copyright (c) 2010-2013 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include <SwifTools/Linkify.h>
#include <boost/regex.hpp>
#include <sstream>
#include <iostream>
namespace Swift {
static boost::regex linkifyRegexp("^(https?://|xmpp:).*");
std::string Linkify::linkify(const std::string& input) {
std::ostringstream result;
std::vector<char> currentURL;
bool inURL = false;
for (size_t i = 0; i < input.size(); ++i) {
char c = input[i];
if (inURL) {
if (c != ' ' && c != '\t' && c != '\n' && !(c == '*' && i == input.size() - 1 && input[0] == '*')) {
currentURL.push_back(c);
}
else {
std::string url(¤tURL[0], currentURL.size());
result << "<a href=\"" << url << "\">" << url << "</a>";
currentURL.clear();
inURL = false;
result << c;
}
}
else {
if (boost::regex_match(input.substr(i, 8), linkifyRegexp)) {
currentURL.push_back(c);
inURL = true;
}
else {
result << c;
}
}
}
if (!currentURL.empty()) {
std::string url(¤tURL[0], currentURL.size());
result << "<a href=\"" << url << "\">" << url << "</a>";
}
return std::string(result.str());
}
std::pair<std::vector<std::string>, size_t> Linkify::splitLink(const std::string& input) {
std::vector<std::string> result;
std::pair<std::vector<std::string>, size_t> pair;
std::vector<char> currentURL;
bool inURL = false;
size_t urlStartsAt = 0;
for (size_t i = 0; i < input.size(); ++i) {
char c = input[i];
if (inURL) {
if (c != ' ' && c != '\t' && c != '\n' && !(c == '*' && i == input.size() - 1 && input[0] == '*')) {
// Keep parsing
}
else {
std::string url(input.substr(urlStartsAt, i - urlStartsAt));
result.push_back(url);
inURL = false;
size_t remaining = input.size() - i;
if (remaining > 0) {
result.push_back(input.substr(i, remaining));
}
pair.first = result;
pair.second = urlStartsAt == 0 ? 0 : 1;
return pair;
}
}
else {
if (boost::regex_match(input.substr(i, 8), linkifyRegexp)) {
urlStartsAt = i;
inURL = true;
if (i > 0) {
result.push_back(input.substr(0, i));
}
}
else {
// Just keep swimming
}
}
}
if (urlStartsAt > 0 || inURL) {
std::string url(input.substr(urlStartsAt, input.size() - urlStartsAt));
result.push_back(url);
pair.first = result;
pair.second = urlStartsAt == 0 ? 0 : 1;
}
else {
pair.first.push_back(input);
pair.second = 1;
}
return pair;
}
}
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Swift