Waybar/src/util/regex_collection.cpp

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#include "util/regex_collection.hpp"
#include <json/value.h>
#include <spdlog/spdlog.h>
namespace waybar::util {
int default_priority_function(std::string& key) { return 0; }
RegexCollection::RegexCollection(const Json::Value& map, std::string default_repr,
std::function<int(std::string&)> priority_function)
: default_repr(default_repr) {
if (!map.isObject()) {
spdlog::warn("Mapping is not an object");
return;
}
for (auto it = map.begin(); it != map.end(); ++it) {
if (it.key().isString() && it->isString()) {
std::string key = it.key().asString();
int priority = priority_function(key);
try {
const std::regex rule{key, std::regex_constants::icase};
rules.emplace_back(rule, it->asString(), priority);
} catch (const std::regex_error& e) {
spdlog::error("Invalid rule '{}': {}", key, e.what());
}
}
}
std::sort(rules.begin(), rules.end(), [](Rule& a, Rule& b) { return a.priority > b.priority; });
}
std::string& RegexCollection::find_match(std::string& value, bool& matched_any) {
for (auto& rule : rules) {
if (std::regex_search(value, rule.rule)) {
matched_any = true;
return rule.repr;
}
}
return value;
}
std::string& RegexCollection::get(std::string& value, bool& matched_any) {
if (regex_cache.contains(value)) {
return regex_cache[value];
}
// std::string repr =
// waybar::util::find_match(value, window_rewrite_rules_, matched_any);
std::string repr = find_match(value, matched_any);
if (!matched_any) {
repr = default_repr;
}
regex_cache.emplace(value, repr);
return regex_cache[value]; // Necessary in order to return a reference to the heap
}
std::string& RegexCollection::get(std::string& value) {
bool matched_any = false;
return get(value, matched_any);
}
} // namespace waybar::util