/*============================================================================ CMake - Cross Platform Makefile Generator Copyright 2000-2009 Kitware, Inc., Insight Software Consortium Distributed under the OSI-approved BSD License (the "License"); see accompanying file Copyright.txt for details. This software is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the License 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 const& args, cmExecutionStatus &status); /** * This determines if the command is invoked when in script mode. */ virtual bool IsScriptable() const { return true; } /** * The name of the command as specified in CMakeList.txt. */ virtual const char* GetName() const { return "string";} /** * Succinct documentation. */ virtual const char* GetTerseDocumentation() const { return "String operations."; } /** * More documentation. */ virtual const char* GetFullDocumentation() const { return " string(REGEX MATCH \n" " [...])\n" " string(REGEX MATCHALL \n" " [...])\n" " string(REGEX REPLACE \n" " \n" " [...])\n" " string(REPLACE \n" " \n" " [...])\n" " string(\n" " )\n" " string(COMPARE EQUAL )\n" " string(COMPARE NOTEQUAL )\n" " string(COMPARE LESS )\n" " string(COMPARE GREATER )\n" " string(ASCII [ ...] )\n" " string(CONFIGURE \n" " [@ONLY] [ESCAPE_QUOTES])\n" " string(TOUPPER )\n" " string(TOLOWER )\n" " string(LENGTH )\n" " string(SUBSTRING )\n" " string(STRIP )\n" " string(RANDOM [LENGTH ] [ALPHABET ]\n" " [RANDOM_SEED ] )\n" " string(FIND [REVERSE])\n" " string(TIMESTAMP [] [UTC])\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" "MD5, SHA1, SHA224, SHA256, SHA384, and SHA512 " "will compute a cryptographic hash of the input string.\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. If length is " "-1 the remainder of the string starting at begin will be returned.\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. If an integer RANDOM_SEED is given, its " "value will be used to seed the random number generator.\n" "FIND will return the position where the given substring was found " "in the supplied string. If the REVERSE flag was used, the command " "will search for the position of the last occurrence of the " "specified substring.\n" "The following characters have special meaning in regular expressions:\n" " ^ Matches at beginning of input\n" " $ Matches at end of input\n" " . Matches any single character\n" " [ ] Matches any character(s) inside the brackets\n" " [^ ] Matches any character(s) not inside the brackets\n" " - Inside brackets, specifies an inclusive range between\n" " characters on either side e.g. [a-f] is [abcdef]\n" " To match a literal - using brackets, make it the first\n" " or the last character e.g. [+*/-] matches basic\n" " mathematical operators.\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 \n" " in the REGEX REPLACE operation. Additionally it is saved\n" " by all regular expression-related commands, including \n" " e.g. if( MATCHES ), in the variables CMAKE_MATCH_(0..9).\n" "*, + and ? have higher precedence than concatenation. | has lower " "precedence than concatenation. This means that the regular expression " "\"^ab+d$\" matches \"abbd\" but not \"ababd\", and the regular " "expression \"^(ab|cd)$\" matches \"ab\" but not \"abd\".\n" "TIMESTAMP will write a string representation of " "the current date and/or time to the output variable.\n" "Should the command be unable to obtain a timestamp " "the output variable will be set to the empty string \"\".\n" "The optional UTC flag requests the current date/time " "representation to be in Coordinated Universal Time (UTC) " "rather than local time.\n" "The optional may contain the following " "format specifiers: \n" " %d The day of the current month (01-31).\n" " %H The hour on a 24-hour clock (00-23).\n" " %I The hour on a 12-hour clock (01-12).\n" " %j The day of the current year (001-366).\n" " %m The month of the current year (01-12).\n" " %M The minute of the current hour (00-59).\n" " %S The second of the current minute.\n" " 60 represents a leap second. (00-60)\n" " %U The week number of the current year (00-53).\n" " %w The day of the current week. 0 is Sunday. (0-6)\n" " %y The last two digits of the current year (00-99)\n" " %Y The current year. \n" "Unknown format specifiers will be ignored " "and copied to the output as-is.\n" "If no explicit is given it will default to:\n" " %Y-%m-%dT%H:%M:%S for local time.\n" " %Y-%m-%dT%H:%M:%SZ for UTC."; } cmTypeMacro(cmStringCommand, cmCommand); static void ClearMatches(cmMakefile* mf); static void StoreMatches(cmMakefile* mf, cmsys::RegularExpression& re); protected: bool HandleConfigureCommand(std::vector const& args); bool HandleAsciiCommand(std::vector const& args); bool HandleRegexCommand(std::vector const& args); bool RegexMatch(std::vector const& args); bool RegexMatchAll(std::vector const& args); bool RegexReplace(std::vector const& args); bool HandleHashCommand(std::vector const& args); bool HandleToUpperLowerCommand(std::vector const& args, bool toUpper); bool HandleCompareCommand(std::vector const& args); bool HandleReplaceCommand(std::vector const& args); bool HandleLengthCommand(std::vector const& args); bool HandleSubstringCommand(std::vector const& args); bool HandleStripCommand(std::vector const& args); bool HandleRandomCommand(std::vector const& args); bool HandleFindCommand(std::vector const& args); bool HandleTimestampCommand(std::vector 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