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#include <regexmanager.h>
#include <logger.h>
#include <utils.h>
#include <cstring>
#include <exceptions.h>
#include <config.h>
namespace newsbeuter {
regexmanager::regexmanager() {
// this creates the entries in the map. we need them there to have the "all" location work.
locations["article"];
locations["articlelist"];
locations["feedlist"];
}
regexmanager::~regexmanager() {
for (auto location : locations) {
if (location.second.first.size() > 0) {
for (auto regex : location.second.first) {
delete regex;
}
}
}
}
void regexmanager::dump_config(std::vector<std::string>& config_output) {
for (auto foo : cheat_store_for_dump_config) {
config_output.push_back(foo);
}
}
void regexmanager::handle_action(const std::string& action, const std::vector<std::string>& params) {
if (action == "highlight") {
if (params.size() < 3)
throw confighandlerexception(AHS_TOO_FEW_PARAMS);
std::string location = params[0];
if (location != "all" && location != "article" && location != "articlelist" && location != "feedlist")
throw confighandlerexception(utils::strprintf(_("`%s' is an invalid dialog type"), location.c_str()));
regex_t * rx = new regex_t;
int err;
if ((err = regcomp(rx, params[1].c_str(), REG_EXTENDED | REG_ICASE)) != 0) {
delete rx;
char buf[1024];
regerror(err, rx, buf, sizeof(buf));
throw confighandlerexception(utils::strprintf(_("`%s' is not a valid regular expression: %s"), params[1].c_str(), buf));
}
std::string colorstr;
if (params[2] != "default") {
colorstr.append("fg=");
if (!utils::is_valid_color(params[2]))
throw confighandlerexception(utils::strprintf(_("`%s' is not a valid color"), params[2].c_str()));
colorstr.append(params[2]);
}
if (params.size() > 3) {
if (params[3] != "default") {
if (colorstr.length() > 0)
colorstr.append(",");
colorstr.append("bg=");
if (!utils::is_valid_color(params[3]))
throw confighandlerexception(utils::strprintf(_("`%s' is not a valid color"), params[3].c_str()));
colorstr.append(params[3]);
}
for (unsigned int i=4; i<params.size(); ++i) {
if (params[i] != "default") {
if (colorstr.length() > 0)
colorstr.append(",");
colorstr.append("attr=");
if (!utils::is_valid_attribute(params[i]))
throw confighandlerexception(utils::strprintf(_("`%s' is not a valid attribute"), params[i].c_str()));
colorstr.append(params[i]);
}
}
}
if (location != "all") {
LOG(LOG_DEBUG, "regexmanager::handle_action: adding rx = %s colorstr = %s to location %s",
params[1].c_str(), colorstr.c_str(), location.c_str());
locations[location].first.push_back(rx);
locations[location].second.push_back(colorstr);
} else {
delete rx;
for (auto location : locations) {
LOG(LOG_DEBUG, "regexmanager::handle_action: adding rx = %s colorstr = %s to location %s",
params[1].c_str(), colorstr.c_str(), location.first.c_str());
rx = new regex_t;
// we need to create a new one for each push_back, otherwise we'd have double frees.
regcomp(rx, params[1].c_str(), REG_EXTENDED | REG_ICASE);
location.second.first.push_back(rx);
location.second.second.push_back(colorstr);
}
}
std::string line = "highlight";
for (const auto& param : params) {
line.append(" ");
line.append(utils::quote(param));
}
cheat_store_for_dump_config.push_back(line);
} else if (action == "highlight-article") {
if (params.size() < 3)
throw confighandlerexception(AHS_TOO_FEW_PARAMS);
std::string expr = params[0];
std::string fgcolor = params[1];
std::string bgcolor = params[2];
std::string colorstr;
if (fgcolor != "default") {
colorstr.append("fg=");
if (!utils::is_valid_color(fgcolor))
throw confighandlerexception(utils::strprintf(_("`%s' is not a valid color"), fgcolor.c_str()));
colorstr.append(fgcolor);
}
if (bgcolor != "default") {
if (colorstr.length() > 0)
colorstr.append(",");
colorstr.append("bg=");
if (!utils::is_valid_color(bgcolor))
throw confighandlerexception(utils::strprintf(_("`%s' is not a valid color"), bgcolor.c_str()));
colorstr.append(bgcolor);
}
for (unsigned int i=3; i<params.size(); i++) {
if (params[i] != "default") {
if (colorstr.length() > 0)
colorstr.append(",");
colorstr.append("attr=");
if (!utils::is_valid_attribute(params[i]))
throw confighandlerexception(utils::strprintf(_("`%s' is not a valid attribute"), params[i].c_str()));
colorstr.append(params[i]);
}
}
std::shared_ptr<matcher> m(new matcher());
if (!m->parse(params[0])) {
throw confighandlerexception(utils::strprintf(_("couldn't parse filter expression `%s': %s"), params[0].c_str(), m->get_parse_error().c_str()));
}
int pos = locations["articlelist"].first.size();
locations["articlelist"].first.push_back(NULL);
locations["articlelist"].second.push_back(colorstr);
matchers.push_back(std::pair<std::shared_ptr<matcher>, int>(m, pos));
} else
throw confighandlerexception(AHS_INVALID_COMMAND);
}
int regexmanager::article_matches(matchable * item) {
for (auto matcher : matchers) {
if (matcher.first->matches(item)) {
return matcher.second;
}
}
return -1;
}
void regexmanager::remove_last_regex(const std::string& location) {
std::vector<regex_t *>& regexes = locations[location].first;
auto it = regexes.begin() + regexes.size() - 1;
delete *it;
regexes.erase(it);
}
std::string regexmanager::extract_initial_marker(const std::string& str) {
if (str.length() == 0)
return "";
if (str[0] == '<') {
std::string::size_type pos = str.find_first_of(">", 0);
if (pos != std::string::npos) {
return str.substr(0, pos+1);
}
}
return "";
}
void regexmanager::quote_and_highlight(std::string& str, const std::string& location) {
std::vector<regex_t *>& regexes = locations[location].first;
unsigned int i = 0;
for (auto regex : regexes) {
if (!regex)
continue;
std::string initial_marker = extract_initial_marker(str);
regmatch_t pmatch;
unsigned int offset = 0;
int err = regexec(regex, str.c_str(), 1, &pmatch, 0);
while (err == 0) {
// LOG(LOG_DEBUG, "regexmanager::quote_and_highlight: matched %s rm_so = %u rm_eo = %u", str.c_str() + offset, pmatch.rm_so, pmatch.rm_eo);
std::string marker = utils::strprintf("<%u>", i);
str.insert(offset + pmatch.rm_eo, std::string("</>") + initial_marker);
// LOG(LOG_DEBUG, "after first insert: %s", str.c_str());
str.insert(offset + pmatch.rm_so, marker);
// LOG(LOG_DEBUG, "after second insert: %s", str.c_str());
offset += pmatch.rm_eo + marker.length() + strlen("</>") + initial_marker.length();
err = regexec(regex, str.c_str() + offset, 1, &pmatch, 0);
}
i++;
}
}
}
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