| /*========================================================================= |
| |
| Program: CMake - Cross-Platform Makefile Generator |
| Module: $RCSfile: cmStringCommand.h,v $ |
| Language: C++ |
| Date: $Date: 2012/03/29 17:21:09 $ |
| Version: $Revision: 1.1.1.1 $ |
| |
| Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved. |
| See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details. |
| |
| This software is distributed WITHOUT ANY WARRANTY; without even |
| the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| PURPOSE. See the above copyright notices for more information. |
| |
| =========================================================================*/ |
| #ifndef cmStringCommand_h |
| #define cmStringCommand_h |
| |
| #include "cmCommand.h" |
| |
| class cmMakefile; |
| namespace cmsys |
| { |
| class RegularExpression; |
| } |
| |
| /** \class cmStringCommand |
| * \brief Common string operations |
| * |
| */ |
| class cmStringCommand : public cmCommand |
| { |
| public: |
| /** |
| * This is a virtual constructor for the command. |
| */ |
| virtual cmCommand* Clone() |
| { |
| return new cmStringCommand; |
| } |
| |
| /** |
| * This is called when the command is first encountered in |
| * the CMakeLists.txt file. |
| */ |
| virtual bool InitialPass(std::vector<std::string> const& args, |
| cmExecutionStatus &status); |
| |
| /** |
| * This determines if the command is invoked when in script mode. |
| */ |
| virtual bool IsScriptable() { return true; } |
| |
| /** |
| * The name of the command as specified in CMakeList.txt. |
| */ |
| virtual const char* GetName() { return "string";} |
| |
| /** |
| * Succinct documentation. |
| */ |
| virtual const char* GetTerseDocumentation() |
| { |
| return "String operations."; |
| } |
| |
| /** |
| * More documentation. |
| */ |
| virtual const char* GetFullDocumentation() |
| { |
| return |
| " string(REGEX MATCH <regular_expression>\n" |
| " <output variable> <input> [<input>...])\n" |
| " string(REGEX MATCHALL <regular_expression>\n" |
| " <output variable> <input> [<input>...])\n" |
| " string(REGEX REPLACE <regular_expression>\n" |
| " <replace_expression> <output variable>\n" |
| " <input> [<input>...])\n" |
| " string(REPLACE <match_string>\n" |
| " <replace_string> <output variable>\n" |
| " <input> [<input>...])\n" |
| " string(COMPARE EQUAL <string1> <string2> <output variable>)\n" |
| " string(COMPARE NOTEQUAL <string1> <string2> <output variable>)\n" |
| " string(COMPARE LESS <string1> <string2> <output variable>)\n" |
| " string(COMPARE GREATER <string1> <string2> <output variable>)\n" |
| " string(ASCII <number> [<number> ...] <output variable>)\n" |
| " string(CONFIGURE <string1> <output variable>\n" |
| " [@ONLY] [ESCAPE_QUOTES])\n" |
| " string(TOUPPER <string1> <output variable>)\n" |
| " string(TOLOWER <string1> <output variable>)\n" |
| " string(LENGTH <string> <output variable>)\n" |
| " string(SUBSTRING <string> <begin> <length> <output variable>)\n" |
| " string(STRIP <string> <output variable>)\n" |
| " string(RANDOM [LENGTH <length>] [ALPHABET <alphabet>]\n" |
| " <output variable>)\n" |
| "REGEX MATCH will match the regular expression once and store the " |
| "match in the output variable.\n" |
| "REGEX MATCHALL will match the regular expression as many times as " |
| "possible and store the matches in the output variable as a list.\n" |
| "REGEX REPLACE will match the regular expression as many times as " |
| "possible and substitute the replacement expression for the match " |
| "in the output. The replace expression may refer to paren-delimited " |
| "subexpressions of the match using \\1, \\2, ..., \\9. Note that " |
| "two backslashes (\\\\1) are required in CMake code to get a " |
| "backslash through argument parsing.\n" |
| "REPLACE will replace all occurrences of match_string in the input with " |
| "replace_string and store the result in the output.\n" |
| "COMPARE EQUAL/NOTEQUAL/LESS/GREATER will compare the strings and " |
| "store true or false in the output variable.\n" |
| "ASCII will convert all numbers into corresponding ASCII characters.\n" |
| "CONFIGURE will transform a string like CONFIGURE_FILE transforms " |
| "a file.\n" |
| "TOUPPER/TOLOWER will convert string to upper/lower characters.\n" |
| "LENGTH will return a given string's length.\n" |
| "SUBSTRING will return a substring of a given string.\n" |
| "STRIP will return a substring of a given string with leading " |
| "and trailing spaces removed.\n" |
| "RANDOM will return a random string of given length consisting of " |
| "characters from the given alphabet. Default length is 5 " |
| "characters and default alphabet is all numbers and upper and " |
| "lower case letters.\n" |
| "The following characters have special meaning in regular expressions:\n" |
| " ^ Matches at beginning of a line\n" |
| " $ Matches at end of a line\n" |
| " . Matches any single character\n" |
| " [ ] Matches any character(s) inside the brackets\n" |
| " [^ ] Matches any character(s) not inside the brackets\n" |
| " - Matches any character in range on either side of a dash\n" |
| " * Matches preceding pattern zero or more times\n" |
| " + Matches preceding pattern one or more times\n" |
| " ? Matches preceding pattern zero or once only\n" |
| " | Matches a pattern on either side of the |\n" |
| " () Saves a matched subexpression, which can be referenced in " |
| "the REGEX REPLACE operation. Additionally it is saved in the special " |
| "CMake variables CMAKE_MATCH_(0..9)."; |
| } |
| |
| cmTypeMacro(cmStringCommand, cmCommand); |
| static void ClearMatches(cmMakefile* mf); |
| static void StoreMatches(cmMakefile* mf, cmsys::RegularExpression& re); |
| protected: |
| bool HandleConfigureCommand(std::vector<std::string> const& args); |
| bool HandleAsciiCommand(std::vector<std::string> const& args); |
| bool HandleRegexCommand(std::vector<std::string> const& args); |
| bool RegexMatch(std::vector<std::string> const& args); |
| bool RegexMatchAll(std::vector<std::string> const& args); |
| bool RegexReplace(std::vector<std::string> const& args); |
| bool HandleToUpperLowerCommand(std::vector<std::string> const& args, |
| bool toUpper); |
| bool HandleCompareCommand(std::vector<std::string> const& args); |
| bool HandleReplaceCommand(std::vector<std::string> const& args); |
| bool HandleLengthCommand(std::vector<std::string> const& args); |
| bool HandleSubstringCommand(std::vector<std::string> const& args); |
| bool HandleStripCommand(std::vector<std::string> const& args); |
| bool HandleRandomCommand(std::vector<std::string> const& args); |
| |
| class RegexReplacement |
| { |
| public: |
| RegexReplacement(const char* s): number(-1), value(s) {} |
| RegexReplacement(const std::string& s): number(-1), value(s) {} |
| RegexReplacement(int n): number(n), value() {} |
| RegexReplacement() {}; |
| int number; |
| std::string value; |
| }; |
| }; |
| |
| |
| #endif |
