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remove regex lrc lib, use my own, regex sucks
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Dr.Abc
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Sep 1, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| #pragma once | ||
| #include <string> | ||
| #include <vector> | ||
|
|
||
| namespace lrc { | ||
| using lrcattribute_t = struct lrcattribute_s | ||
| { | ||
| std::u8string Key = u8""; | ||
| std::u8string Value = u8""; | ||
| }; | ||
| class CLrcLine | ||
| { | ||
| public: | ||
| std::u8string CurrentLyric = u8""; | ||
| time_t StartTime = 0; | ||
| time_t EndTime = 0; | ||
| const char* GetLyric(); | ||
| }; | ||
| class CLrcCollection { | ||
| public: | ||
| std::vector<CLrcLine*> Lines = {}; | ||
| std::vector<lrcattribute_t*> Attributes = {}; | ||
| size_t Size(); | ||
| CLrcLine* LyricAt(time_t time); | ||
| ~CLrcCollection(); | ||
| }; | ||
| extern CLrcCollection* LrcParser(const char8_t* lrc); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,119 @@ | ||
| #include "liblrc.h" | ||
|
|
||
| #include <algorithm> | ||
| #include <iomanip> | ||
| #include <sstream> | ||
|
|
||
| namespace lrc{ | ||
| CLrcCollection* LrcParser(const char8_t* lrc) { | ||
| std::vector<std::u8string> splited; | ||
| std::u8string s = lrc; | ||
| std::u8string token; | ||
| std::basic_istringstream<char8_t> tokenStream(s); | ||
| while (std::getline(tokenStream, token, u8'\n')) { | ||
| splited.push_back(token); | ||
| } | ||
|
|
||
| CLrcCollection* collection = new CLrcCollection(); | ||
| for (auto iter = splited.begin(); iter != splited.end(); iter++) { | ||
| std::u8string line = *iter; | ||
| if (*line.begin() != u8'[') | ||
| continue; | ||
| size_t tagend = line.rfind(u8']'); | ||
| //wtf??? | ||
| if (tagend == std::u8string::npos) | ||
| continue; | ||
| //Is Attribute | ||
| if (tagend == line.size() - 1) { | ||
| bool invalue = false; | ||
| lrcattribute_t* attribute = new lrcattribute_t(); | ||
| for (size_t i = 1; i < line.size() - 1; i++) { | ||
| char8_t c = line[i]; | ||
| if (c == u8':') { | ||
| invalue = true; | ||
| continue; | ||
| } | ||
| if (invalue) | ||
| attribute->Value += c; | ||
| else | ||
| attribute->Key += c; | ||
| } | ||
| collection->Attributes.push_back(attribute); | ||
| } | ||
| //Is Lyric | ||
| else { | ||
| std::u8string header = line.substr(0, tagend + 1); | ||
| std::u8string lrc = line.substr(tagend + 1); | ||
|
|
||
| std::u8string timestamp = u8""; | ||
| CLrcLine* lineitem = nullptr; | ||
| for (size_t i = 0; i < header.size(); i++) { | ||
| char8_t c = header[i]; | ||
| switch (c) | ||
| { | ||
| case u8'[': { | ||
| lineitem = new CLrcLine(); | ||
| break; | ||
| } | ||
| case u8']': { | ||
| if (lineitem) { | ||
| time_t m, s, ms; | ||
| char dem; | ||
| std::istringstream ss(reinterpret_cast<const char*>(timestamp.c_str())); | ||
| ss >> m >> dem >> s >> dem >> ms; | ||
| lineitem->StartTime = m * 60000 + s * 1000 + ms; | ||
| lineitem->CurrentLyric = lrc; | ||
| collection->Lines.push_back(lineitem); | ||
| lineitem = nullptr; | ||
| } | ||
| break; | ||
| } | ||
| default: | ||
| timestamp += c; | ||
| break; | ||
| } | ||
| } | ||
| //wtf line | ||
| if (lineitem) | ||
| delete lineitem; | ||
| } | ||
| } | ||
| std::sort(collection->Lines.begin(), collection->Lines.end(), [](const CLrcLine* a, const CLrcLine* b) { | ||
| return a->StartTime < b->StartTime; | ||
| }); | ||
| if (collection->Lines.size() > 1) { | ||
| for (size_t i = 0; i < collection->Lines.size() - 1; ++i) { | ||
| collection->Lines[i]->EndTime = collection->Lines[i + 1]->StartTime; | ||
| } | ||
| } | ||
| return collection; | ||
| } | ||
|
|
||
| const char* CLrcLine::GetLyric(){ | ||
| return reinterpret_cast<const char*>(CurrentLyric.c_str()); | ||
| } | ||
|
|
||
| size_t CLrcCollection::Size(){ | ||
| return Lines.size(); | ||
| } | ||
|
|
||
| CLrcLine* CLrcCollection::LyricAt(time_t time){ | ||
| for (auto iter = Lines.rbegin(); iter != Lines.rend(); iter++) { | ||
| auto line = (*iter); | ||
| if (line->StartTime <= time) | ||
| return line; | ||
| } | ||
| return nullptr; | ||
| } | ||
|
|
||
| CLrcCollection::~CLrcCollection() { | ||
| for (auto iter = Lines.begin(); iter != Lines.end(); iter++) { | ||
| delete (*iter); | ||
| } | ||
| for (auto iter = Attributes.begin(); iter != Attributes.end(); iter++) { | ||
| delete (*iter); | ||
| } | ||
| Lines.clear(); | ||
| Attributes.clear(); | ||
| } | ||
| } |
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