From 8211e82e40b8f6c0e200933f25aa4d9fe2cf4edc Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Thu, 26 Jan 2006 20:36:29 +0000 Subject: [PATCH] add some methods for case-insensitive string compares git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25659 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/ADT/StringExtras.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/include/llvm/ADT/StringExtras.h b/include/llvm/ADT/StringExtras.h index 32f9b0c9079..bd8333909c4 100644 --- a/include/llvm/ADT/StringExtras.h +++ b/include/llvm/ADT/StringExtras.h @@ -113,6 +113,27 @@ static inline std::string LowercaseString(const std::string &S) { return result; } +/// StringsEqualNoCase - Return true if the two strings are equal, ignoring +/// case. +static inline bool StringsEqualNoCase(const std::string &LHS, + const std::string &RHS) { + if (LHS.size() != RHS.size()) return false; + for (unsigned i = 0, e = LHS.size(); i != e; ++i) + if (tolower(LHS[i]) != tolower(RHS[i])) return false; + return true; +} + +/// StringsEqualNoCase - Return true if the two strings are equal, ignoring +/// case. +static inline bool StringsEqualNoCase(const std::string &LHS, + const char *RHS) { + for (unsigned i = 0, e = LHS.size(); i != e; ++i) { + if (RHS[i] == 0) return false; // RHS too short. + if (tolower(LHS[i]) != tolower(RHS[i])) return false; + } + return RHS[LHS.size()] == 0; // Not too long? +} + /// getToken - This function extracts one token from source, ignoring any /// leading characters that appear in the Delimiters string, and ending the /// token at any of the characters that appear in the Delimiters string. If