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cmStringAlgorithms: Modernize cmWrap using cm::string_view

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This commit is contained in:
Sebastian Holtermann 2019-07-31 22:07:05 +02:00
parent e5d3ea22d4
commit 75cf7ec263
1 changed files with 11 additions and 7 deletions

18
Source/cmStringAlgorithms.h

@ -98,21 +98,25 @@ inline std::string cmStrCat(cmAlphaNum const& a, cmAlphaNum const& b,
{ a.View(), b.View(), static_cast<cmAlphaNum const&>(args).View()... });
}
/** Joins wrapped elements of a range with separator into a single string. */
template <typename Range>
std::string cmWrap(std::string const& prefix, Range const& r,
std::string const& suffix, std::string const& sep)
std::string cmWrap(cm::string_view prefix, Range const& rng,
cm::string_view suffix, cm::string_view sep)
{
if (r.empty()) {
if (rng.empty()) {
return std::string();
}
return prefix + cmJoin(r, suffix + sep + prefix) + suffix;
return cmCatViews(
{ prefix, cmJoin(rng, cmCatViews({ suffix, sep, prefix })), suffix });
}
/** Joins wrapped elements of a range with separator into a single string. */
template <typename Range>
std::string cmWrap(char prefix, Range const& r, char suffix,
std::string const& sep)
std::string cmWrap(char prefix, Range const& rng, char suffix,
cm::string_view sep)
{
return cmWrap(std::string(1, prefix), r, std::string(1, suffix), sep);
return cmWrap(cm::string_view(&prefix, 1), rng, cm::string_view(&suffix, 1),
sep);
}
/** Returns true if string @a str starts with the character @a prefix. */