diff options
author | Roman Divacky <rdivacky@FreeBSD.org> | 2009-10-23 14:19:52 +0000 |
---|---|---|
committer | Roman Divacky <rdivacky@FreeBSD.org> | 2009-10-23 14:19:52 +0000 |
commit | 4a142eb28942073eb27a112b5ca1cca3f01beb9c (patch) | |
tree | 22cc59e4b240d84c3a5a60531119c4eca914a256 /lib/Support/StringExtras.cpp | |
parent | 5cd822fa9bbb9622241e3bf4d7674ed49ccde5b9 (diff) |
Notes
Diffstat (limited to 'lib/Support/StringExtras.cpp')
-rw-r--r-- | lib/Support/StringExtras.cpp | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/lib/Support/StringExtras.cpp b/lib/Support/StringExtras.cpp index 1618086e602ea..c72f121653431 100644 --- a/lib/Support/StringExtras.cpp +++ b/lib/Support/StringExtras.cpp @@ -56,59 +56,3 @@ void llvm::SplitString(const std::string &Source, S2 = getToken(S, Delimiters); } } - - - -/// UnescapeString - Modify the argument string, turning two character sequences -/// @verbatim -/// like '\\' 'n' into '\n'. This handles: \e \a \b \f \n \r \t \v \' \ and -/// \num (where num is a 1-3 byte octal value). -/// @endverbatim -void llvm::UnescapeString(std::string &Str) { - for (unsigned i = 0; i != Str.size(); ++i) { - if (Str[i] == '\\' && i != Str.size()-1) { - switch (Str[i+1]) { - default: continue; // Don't execute the code after the switch. - case 'a': Str[i] = '\a'; break; - case 'b': Str[i] = '\b'; break; - case 'e': Str[i] = 27; break; - case 'f': Str[i] = '\f'; break; - case 'n': Str[i] = '\n'; break; - case 'r': Str[i] = '\r'; break; - case 't': Str[i] = '\t'; break; - case 'v': Str[i] = '\v'; break; - case '"': Str[i] = '\"'; break; - case '\'': Str[i] = '\''; break; - case '\\': Str[i] = '\\'; break; - } - // Nuke the second character. - Str.erase(Str.begin()+i+1); - } - } -} - -/// EscapeString - Modify the argument string, turning '\\' and anything that -/// doesn't satisfy std::isprint into an escape sequence. -void llvm::EscapeString(std::string &Str) { - for (unsigned i = 0; i != Str.size(); ++i) { - if (Str[i] == '\\') { - ++i; - Str.insert(Str.begin()+i, '\\'); - } else if (Str[i] == '\t') { - Str[i++] = '\\'; - Str.insert(Str.begin()+i, 't'); - } else if (Str[i] == '"') { - Str.insert(Str.begin()+i++, '\\'); - } else if (Str[i] == '\n') { - Str[i++] = '\\'; - Str.insert(Str.begin()+i, 'n'); - } else if (!std::isprint(Str[i])) { - // Always expand to a 3-digit octal escape. - unsigned Char = Str[i]; - Str[i++] = '\\'; - Str.insert(Str.begin()+i++, '0'+((Char/64) & 7)); - Str.insert(Str.begin()+i++, '0'+((Char/8) & 7)); - Str.insert(Str.begin()+i , '0'+( Char & 7)); - } - } -} |