diff options
Diffstat (limited to 'lib/Support/Regex.cpp')
-rw-r--r-- | lib/Support/Regex.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Support/Regex.cpp b/lib/Support/Regex.cpp index efc8b90a00..dec967e33f 100644 --- a/lib/Support/Regex.cpp +++ b/lib/Support/Regex.cpp @@ -168,3 +168,10 @@ std::string Regex::sub(StringRef Repl, StringRef String, return Res; } + +bool Regex::isLiteralERE(StringRef Str) { + // Check for regex metacharacters. This list was derived from our regex + // implementation in regcomp.c and double checked against the POSIX extended + // regular expression specification. + return Str.find_first_of("()^$|*+?.[]\\{}") == StringRef::npos; +} |