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Add StringRef::split(StringRef), to complement StringRef::split(char).

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llvm-svn: 86803
This commit is contained in:
Daniel Dunbar 2009-11-11 05:19:11 +00:00
parent cea17df39c
commit da387a1c25
1 changed files with 17 additions and 0 deletions
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17
include/llvm/ADT/StringRef.h
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@ -289,6 +289,23 @@ namespace llvm {
return std::make_pair(slice(0, Idx), slice(Idx+1, npos));
}
/// split - Split into two substrings around the first occurence of a
/// separator string.
///
/// If \arg Separator is in the string, then the result is a pair (LHS, RHS)
/// such that (*this == LHS + Separator + RHS) is true and RHS is
/// maximal. If \arg Separator is not in the string, then the result is a
/// pair (LHS, RHS) where (*this == LHS) and (RHS == "").
///
/// \param Separator - The string to split on.
/// \return - The split substrings.
std::pair<StringRef, StringRef> split(StringRef Separator) const {
size_t Idx = find(Separator);
if (Idx == npos)
return std::make_pair(*this, StringRef());
return std::make_pair(slice(0, Idx), slice(Idx + Separator.size(), npos));
}
/// rsplit - Split into two substrings around the last occurence of a
/// separator character.
///