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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator Module: $RCSfile$ Language: C++ Date: $Date$ Version: $Revision$
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);
/**
* 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 occurences 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
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