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StringAlgorithms: Refactor cmTokenize() function

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- Refactor and optimize the loop to make it shorter and faster
- Make it push elements into an arbitrary (templated) output iterator
- Make it a template on a separator type with the most used defaults
- Add a backward compatible signature to return `std::vector<std::string>`
- Add an alternative function `cmTokenizedView()` to return a vector of string views
This commit is contained in:
Alex Turbov
2024-10-25 03:10:14 +04:00
parent 9c02fad126
commit f3f70c2f90
14 changed files with 157 additions and 96 deletions
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24
Source/cmStringAlgorithms.cxx
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@@ -55,30 +55,6 @@ std::string cmEscapeQuotes(cm::string_view str)
return result;
}
std::vector<std::string> cmTokenize(cm::string_view str, cm::string_view sep)
{
std::vector<std::string> tokens;
cm::string_view::size_type tokend = 0;
do {
cm::string_view::size_type tokstart = str.find_first_not_of(sep, tokend);
if (tokstart == cm::string_view::npos) {
break; // no more tokens
}
tokend = str.find_first_of(sep, tokstart);
if (tokend == cm::string_view::npos) {
tokens.emplace_back(str.substr(tokstart));
} else {
tokens.emplace_back(str.substr(tokstart, tokend - tokstart));
}
} while (tokend != cm::string_view::npos);
if (tokens.empty()) {
tokens.emplace_back();
}
return tokens;
}
namespace {
template <std::size_t N, typename T>
inline void MakeDigits(cm::string_view& view, char (&digits)[N],