diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Support/CommandLine.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/include/llvm/Support/CommandLine.h b/include/llvm/Support/CommandLine.h index 531760b01d..8fb4630667 100644 --- a/include/llvm/Support/CommandLine.h +++ b/include/llvm/Support/CommandLine.h @@ -1745,6 +1745,59 @@ void PrintHelpMessage(bool Hidden=false, bool Categorized=false); /// llvm::cl::ParseCommandLineOptions(). void getRegisteredOptions(StringMap<Option*> &Map); +//===----------------------------------------------------------------------===// +// Standalone command line processing utilities. +// + +/// \brief Saves strings in the inheritor's stable storage and returns a stable +/// raw character pointer. +class StringSaver { +public: + virtual const char *SaveString(const char *Str) = 0; + virtual ~StringSaver() {}; // Pacify -Wnon-virtual-dtor. +}; + +/// \brief Tokenizes a command line that can contain escapes and quotes. +// +/// The quoting rules match those used by GCC and other tools that use +/// libiberty's buildargv() or expandargv() utilities, and do not match bash. +/// They differ from buildargv() on treatment of backslashes that do not escape +/// a special character to make it possible to accept most Windows file paths. +/// +/// \param [in] Source The string to be split on whitespace with quotes. +/// \param [in] Saver Delegates back to the caller for saving parsed strings. +/// \param [out] NewArgv All parsed strings are appended to NewArgv. +void TokenizeGNUCommandLine(StringRef Source, StringSaver &Saver, + SmallVectorImpl<const char *> &NewArgv); + +/// \brief Tokenizes a Windows command line which may contain quotes and escaped +/// quotes. +/// +/// See MSDN docs for CommandLineToArgvW for information on the quoting rules. +/// http://msdn.microsoft.com/en-us/library/windows/desktop/17w5ykft(v=vs.85).aspx +/// +/// \param [in] Source The string to be split on whitespace with quotes. +/// \param [in] Saver Delegates back to the caller for saving parsed strings. +/// \param [out] NewArgv All parsed strings are appended to NewArgv. +void TokenizeWindowsCommandLine(StringRef Source, StringSaver &Saver, + SmallVectorImpl<const char *> &NewArgv); + +/// \brief String tokenization function type. Should be compatible with either +/// Windows or Unix command line tokenizers. +typedef void (*TokenizerCallback)(StringRef Source, StringSaver &Saver, + SmallVectorImpl<const char *> &NewArgv); + +/// \brief Expand response files on a command line recursively using the given +/// StringSaver and tokenization strategy. Argv should contain the command line +/// before expansion and will be modified in place. +/// +/// \param [in] Saver Delegates back to the caller for saving parsed strings. +/// \param [in] Tokenize Tokenization strategy. Typically Unix or Windows. +/// \param [in,out] Argv Command line into which to expand response files. +/// \return true if all @files were expanded successfully or there were none. +bool ExpandResponseFiles(StringSaver &Saver, TokenizerCallback Tokenizer, + SmallVectorImpl<const char *> &Argv); + } // End namespace cl } // End namespace llvm |