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i18n/engine: optimize string generation

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This commit is contained in:
Vaxry 2025-11-16 20:02:11 +00:00
parent e3cae692f6
commit 0c6411851c
Signed by: vaxry
GPG key ID: 665806380871D640
1 changed files with 70 additions and 9 deletions
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79
src/i18n/I18nEngine.cpp
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@ -3,11 +3,11 @@
#include <algorithm>
#include <format>
#include <locale>
#include <hyprutils/string/String.hpp>
#include <hyprutils/utils/ScopeGuard.hpp>
using namespace Hyprutils::I18n;
using namespace Hyprutils;
using namespace Hyprutils::String;
using namespace Hyprutils::Utils;
CI18nEngine::CI18nEngine() : m_impl(Memory::makeUnique<SI18nEngineImpl>()) {
;
@ -94,16 +94,68 @@ std::string CI18nEngine::localizeEntry(const std::string& locale, uint64_t key,
if (!entry || !entry->exists)
return "";
std::string rawStr = entry->entry;
std::string_view rawStr = entry->entry;
std::string fnStringContainer;
if (entry->fn)
rawStr = entry->fn(map);
for (const auto& e : map) {
replaceInString(rawStr, "{" + e.first + "}", e.second);
if (entry->fn) {
fnStringContainer = entry->fn(map);
rawStr = fnStringContainer;
}
return rawStr;
struct SRange {
size_t begin = 0;
size_t end = 0;
const std::string* val = nullptr;
};
std::vector<SRange> rangesFound;
// discover all replacable ranges
for (const auto& [k, v] : map) {
size_t start = rawStr.find(k, 0);
while (start != std::string::npos) {
if (start == 0 || start + k.size() >= rawStr.size())
break;
// always move the pointer
CScopeGuard x([&start, &rawStr, &k] { start = rawStr.find(k, start + 1); });
if (rawStr[start - 1] != '{' || rawStr[start + k.size()] != '}')
continue;
// add range
rangesFound.emplace_back(SRange{.begin = start - 1, .end = start + k.size() + 1, .val = &v});
}
}
if (rangesFound.empty())
return std::string{rawStr};
// build the new string. First, sort our entries
std::ranges::sort(rangesFound, [](const auto& a, const auto& b) { return a.begin - b.begin; });
// calc the size
size_t stringLen = 0;
size_t lastBegin = 0;
for (const auto& r : rangesFound) {
stringLen += r.begin - lastBegin + r.val->size();
lastBegin = r.end;
}
stringLen += rawStr.size() - lastBegin;
lastBegin = 0;
const auto ORIGINAL_STR = std::string_view{rawStr};
std::string newStr;
newStr.reserve(stringLen);
for (const auto& r : rangesFound) {
newStr += ORIGINAL_STR.substr(lastBegin, r.begin);
newStr += *r.val;
lastBegin = r.end;
}
newStr += ORIGINAL_STR.substr(lastBegin);
return newStr;
}
CI18nLocale CI18nEngine::getSystemLocale() {
@ -174,6 +226,15 @@ TEST(I18n, Engine) {
EXPECT_EQ(engine.localizeEntry("pl_PL", TXT_KEY_FALLBACK, {}), "Fallback string!");
EXPECT_EQ(engine.localizeEntry("am_AM", TXT_KEY_FALLBACK, {}), "Amongus!");
// test weird translations
engine.registerEntry("ts", TXT_KEY_HELLO, "count}");
EXPECT_EQ(engine.localizeEntry("ts", TXT_KEY_HELLO, {{"count", "1"}}), "count}");
engine.registerEntry("ts", TXT_KEY_HELLO, "{count");
EXPECT_EQ(engine.localizeEntry("ts", TXT_KEY_HELLO, {{"count", "1"}}), "{count");
EXPECT_EQ(engine.localizeEntry("ts", 42069 /* invalid key */, {{"count", "1"}}), "");
}
#endif