diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/ADT/StringRef.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/llvm/ADT/StringRef.h b/include/llvm/ADT/StringRef.h index b07dcc1..6ccb37d 100644 --- a/include/llvm/ADT/StringRef.h +++ b/include/llvm/ADT/StringRef.h @@ -15,6 +15,14 @@ #include <cstring> #include <string> +namespace std { + template<typename _Tp> + class allocator; + + template<typename _Tp, typename _Alloc> + class vector; +} + namespace llvm { /// StringRef - Represent a constant reference to a string, i.e. a character @@ -314,6 +322,25 @@ namespace llvm { return std::make_pair(slice(0, Idx), slice(Idx + Separator.size(), npos)); } + /// split - Split into substrings around the occurences of a separator + /// string. + /// + /// Each substring is stored in \arg A. If \arg MaxSplit is >= 0, at most + /// \arg MaxSplit splits are done and consequently <= \arg MaxSplit + /// elements are added to A. + /// If \arg KeepEmpty is false, empty strings are not added to \arg A. They + /// still count when considering \arg MaxSplit + /// An useful invariant is that + /// Separator.join(A) == *this if MaxSplit == -1 and KeepEmpty == true + /// + /// \param A - Where to put the substrings. + /// \param Separator - The string to split on. + /// \param MaxSplit - The maximum number of times the string is split. + /// \parm KeepEmpty - True if empty substring should be added. + void split(std::vector<StringRef, std::allocator<StringRef> > &A, + StringRef Separator, unsigned MaxSplit = -1, + bool KeepEmpty = true) const; + /// rsplit - Split into two substrings around the last occurence of a /// separator character. /// |