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fix toupper and tolower

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This commit is contained in:
blueloveTH 2023-09-28 10:55:48 +08:00
parent 405b8188ff
commit ea2e16c931
1 changed files with 8 additions and 2 deletions
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10
src/str.cpp
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@ -208,13 +208,19 @@ int utf8len(unsigned char c, bool suppress){
Str Str::lower() const{ Str Str::lower() const{
std::string copy(data, size); std::string copy(data, size);
std::transform(copy.begin(), copy.end(), copy.begin(), [](unsigned char c){ return std::tolower(c); }); std::transform(copy.begin(), copy.end(), copy.begin(), [](unsigned char c){
if('A' <= c && c <= 'Z') return c + ('a' - 'A');
return (int)c;
});
return Str(copy); return Str(copy);
} }
Str Str::upper() const{ Str Str::upper() const{
std::string copy(data, size); std::string copy(data, size);
std::transform(copy.begin(), copy.end(), copy.begin(), [](unsigned char c){ return std::toupper(c); }); std::transform(copy.begin(), copy.end(), copy.begin(), [](unsigned char c){
if('a' <= c && c <= 'z') return c - ('a' - 'A');
return (int)c;
});
return Str(copy); return Str(copy);
} }