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2e9c26cf96
Provide a CMake-language binding to these cryptographic hashes. Add a string() command API for MD5, SHA1, SHA224, SHA256, SHA384, and SHA512.
182 lines
7.8 KiB
C++
182 lines
7.8 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#ifndef cmStringCommand_h
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#define cmStringCommand_h
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#include "cmCommand.h"
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class cmMakefile;
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namespace cmsys
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{
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class RegularExpression;
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}
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/** \class cmStringCommand
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* \brief Common string operations
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*
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*/
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class cmStringCommand : public cmCommand
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{
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public:
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/**
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* This is a virtual constructor for the command.
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*/
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virtual cmCommand* Clone()
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{
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return new cmStringCommand;
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}
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/**
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* This is called when the command is first encountered in
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* the CMakeLists.txt file.
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*/
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virtual bool InitialPass(std::vector<std::string> const& args,
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cmExecutionStatus &status);
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/**
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* This determines if the command is invoked when in script mode.
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*/
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virtual bool IsScriptable() { return true; }
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/**
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* The name of the command as specified in CMakeList.txt.
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*/
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virtual const char* GetName() { return "string";}
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/**
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* Succinct documentation.
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*/
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virtual const char* GetTerseDocumentation()
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{
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return "String operations.";
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}
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/**
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* More documentation.
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*/
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virtual const char* GetFullDocumentation()
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{
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return
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" string(REGEX MATCH <regular_expression>\n"
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" <output variable> <input> [<input>...])\n"
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" string(REGEX MATCHALL <regular_expression>\n"
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" <output variable> <input> [<input>...])\n"
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" string(REGEX REPLACE <regular_expression>\n"
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" <replace_expression> <output variable>\n"
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" <input> [<input>...])\n"
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" string(REPLACE <match_string>\n"
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" <replace_string> <output variable>\n"
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" <input> [<input>...])\n"
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" string(<MD5|SHA1|SHA224|SHA256|SHA384|SHA512>\n"
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" <output variable> <input>)\n"
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" string(COMPARE EQUAL <string1> <string2> <output variable>)\n"
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" string(COMPARE NOTEQUAL <string1> <string2> <output variable>)\n"
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" string(COMPARE LESS <string1> <string2> <output variable>)\n"
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" string(COMPARE GREATER <string1> <string2> <output variable>)\n"
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" string(ASCII <number> [<number> ...] <output variable>)\n"
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" string(CONFIGURE <string1> <output variable>\n"
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" [@ONLY] [ESCAPE_QUOTES])\n"
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" string(TOUPPER <string1> <output variable>)\n"
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" string(TOLOWER <string1> <output variable>)\n"
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" string(LENGTH <string> <output variable>)\n"
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" string(SUBSTRING <string> <begin> <length> <output variable>)\n"
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" string(STRIP <string> <output variable>)\n"
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" string(RANDOM [LENGTH <length>] [ALPHABET <alphabet>]\n"
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" [RANDOM_SEED <seed>] <output variable>)\n"
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" string(FIND <string> <substring> <output variable> [REVERSE])\n"
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"REGEX MATCH will match the regular expression once and store the "
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"match in the output variable.\n"
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"REGEX MATCHALL will match the regular expression as many times as "
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"possible and store the matches in the output variable as a list.\n"
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"REGEX REPLACE will match the regular expression as many times as "
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"possible and substitute the replacement expression for the match "
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"in the output. The replace expression may refer to paren-delimited "
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"subexpressions of the match using \\1, \\2, ..., \\9. Note that "
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"two backslashes (\\\\1) are required in CMake code to get a "
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"backslash through argument parsing.\n"
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"REPLACE will replace all occurrences of match_string in the input with "
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"replace_string and store the result in the output.\n"
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"MD5, SHA1, SHA224, SHA256, SHA384, and SHA512 "
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"will compute a cryptographic hash of the input string.\n"
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"COMPARE EQUAL/NOTEQUAL/LESS/GREATER will compare the strings and "
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"store true or false in the output variable.\n"
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"ASCII will convert all numbers into corresponding ASCII characters.\n"
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"CONFIGURE will transform a string like CONFIGURE_FILE transforms "
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"a file.\n"
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"TOUPPER/TOLOWER will convert string to upper/lower characters.\n"
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"LENGTH will return a given string's length.\n"
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"SUBSTRING will return a substring of a given string. If length is "
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"-1 the remainder of the string starting at begin will be returned.\n"
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"STRIP will return a substring of a given string with leading "
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"and trailing spaces removed.\n"
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"RANDOM will return a random string of given length consisting of "
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"characters from the given alphabet. Default length is 5 "
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"characters and default alphabet is all numbers and upper and "
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"lower case letters. If an integer RANDOM_SEED is given, its "
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"value will be used to seed the random number generator.\n"
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"FIND will return the position where the given substring was found "
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"in the supplied string. If the REVERSE flag was used, the command "
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"will search for the position of the last occurrence of the "
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"specified substring.\n"
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"The following characters have special meaning in regular expressions:\n"
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" ^ Matches at beginning of a line\n"
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" $ Matches at end of a line\n"
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" . Matches any single character\n"
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" [ ] Matches any character(s) inside the brackets\n"
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" [^ ] Matches any character(s) not inside the brackets\n"
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" - Matches any character in range on either side of a dash\n"
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" * Matches preceding pattern zero or more times\n"
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" + Matches preceding pattern one or more times\n"
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" ? Matches preceding pattern zero or once only\n"
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" | Matches a pattern on either side of the |\n"
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" () Saves a matched subexpression, which can be referenced \n"
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" in the REGEX REPLACE operation. Additionally it is saved\n"
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" by all regular expression-related commands, including \n"
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" e.g. if( MATCHES ), in the variables CMAKE_MATCH_(0..9).";
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}
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cmTypeMacro(cmStringCommand, cmCommand);
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static void ClearMatches(cmMakefile* mf);
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static void StoreMatches(cmMakefile* mf, cmsys::RegularExpression& re);
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protected:
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bool HandleConfigureCommand(std::vector<std::string> const& args);
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bool HandleAsciiCommand(std::vector<std::string> const& args);
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bool HandleRegexCommand(std::vector<std::string> const& args);
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bool RegexMatch(std::vector<std::string> const& args);
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bool RegexMatchAll(std::vector<std::string> const& args);
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bool RegexReplace(std::vector<std::string> const& args);
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bool HandleHashCommand(std::vector<std::string> const& args);
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bool HandleToUpperLowerCommand(std::vector<std::string> const& args,
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bool toUpper);
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bool HandleCompareCommand(std::vector<std::string> const& args);
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bool HandleReplaceCommand(std::vector<std::string> const& args);
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bool HandleLengthCommand(std::vector<std::string> const& args);
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bool HandleSubstringCommand(std::vector<std::string> const& args);
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bool HandleStripCommand(std::vector<std::string> const& args);
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bool HandleRandomCommand(std::vector<std::string> const& args);
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bool HandleFindCommand(std::vector<std::string> const& args);
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class RegexReplacement
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{
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public:
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RegexReplacement(const char* s): number(-1), value(s) {}
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RegexReplacement(const std::string& s): number(-1), value(s) {}
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RegexReplacement(int n): number(n), value() {}
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RegexReplacement() {};
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int number;
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std::string value;
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};
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};
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#endif
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