761 lines
24 KiB
C++
761 lines
24 KiB
C++
/*=========================================================================
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Program: KWSys - Kitware System Library
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Module: $RCSfile$
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Copyright (c) Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#ifndef @KWSYS_NAMESPACE@_SystemTools_hxx
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#define @KWSYS_NAMESPACE@_SystemTools_hxx
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#include <@KWSYS_NAMESPACE@/ios/iosfwd>
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#include <@KWSYS_NAMESPACE@/stl/string>
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#include <@KWSYS_NAMESPACE@/stl/vector>
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#include <@KWSYS_NAMESPACE@/stl/map>
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#include <@KWSYS_NAMESPACE@/stl/algorithm>
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#include <@KWSYS_NAMESPACE@/Configure.h>
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#include <sys/types.h>
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// Required for va_list
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#include <stdarg.h>
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#if @KWSYS_NAMESPACE@_STL_HAVE_STD && !defined(va_list)
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// Some compilers move va_list into the std:: namespace and there is no way to
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// tell that this has been done. Playing with things being included before or
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// after stdarg.h does not solve things because we do not have control over
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// what the user does. This hack solves this problem by moving va_list to our
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// own namespace that is local for kwsys.
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namespace std {} // Required for platforms that do not have std::
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namespace @KWSYS_NAMESPACE@_VA_LIST
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{
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using namespace std;
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typedef va_list hack_va_list;
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}
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namespace @KWSYS_NAMESPACE@
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{
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typedef @KWSYS_NAMESPACE@_VA_LIST::hack_va_list va_list;
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}
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#endif // va_list
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#if defined( _MSC_VER )
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typedef unsigned short mode_t;
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#endif
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/* Define these macros temporarily to keep the code readable. */
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#if !defined (KWSYS_NAMESPACE) && !@KWSYS_NAMESPACE@_NAME_IS_KWSYS
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# define kwsys_stl @KWSYS_NAMESPACE@_stl
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# define kwsys_ios @KWSYS_NAMESPACE@_ios
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#endif
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namespace @KWSYS_NAMESPACE@
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{
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class SystemToolsTranslationMap;
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class @KWSYS_NAMESPACE@_EXPORT SystemToolsManager
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{
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public:
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SystemToolsManager();
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~SystemToolsManager();
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};
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// This instance will show up in any translation unit that uses
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// SystemTools. It will make sure SystemTools is initialized
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// before it is used and is the last static object destroyed.
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static SystemToolsManager SystemToolsManagerInstance;
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/** \class SystemTools
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* \brief A collection of useful platform-independent system functions.
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*/
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class @KWSYS_NAMESPACE@_EXPORT SystemTools
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{
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public:
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/** -----------------------------------------------------------------
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* String Manipulation Routines
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* -----------------------------------------------------------------
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*/
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/**
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* Replace symbols in str that are not valid in C identifiers as
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* defined by the 1999 standard, ie. anything except [A-Za-z0-9_].
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* They are replaced with `_' and if the first character is a digit
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* then an underscore is prepended. Note that this can produce
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* identifiers that the standard reserves (_[A-Z].* and __.*).
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*/
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static kwsys_stl::string MakeCindentifier(const char* s);
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/**
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* Replace replace all occurences of the string in the source string.
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*/
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static void ReplaceString(kwsys_stl::string& source,
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const char* replace,
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const char* with);
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/**
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* Return a capitalized string (i.e the first letter is uppercased,
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* all other are lowercased).
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*/
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static kwsys_stl::string Capitalized(const kwsys_stl::string&);
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/**
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* Return a 'capitalized words' string (i.e the first letter of each word
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* is uppercased all other are left untouched though).
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*/
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static kwsys_stl::string CapitalizedWords(const kwsys_stl::string&);
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/**
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* Return a 'uncapitalized words' string (i.e the first letter of each word
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* is lowercased all other are left untouched though).
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*/
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static kwsys_stl::string UnCapitalizedWords(const kwsys_stl::string&);
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/**
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* Return a lower case string
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*/
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static kwsys_stl::string LowerCase(const kwsys_stl::string&);
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/**
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* Return a lower case string
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*/
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static kwsys_stl::string UpperCase(const kwsys_stl::string&);
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/**
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* Count char in string
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*/
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static size_t CountChar(const char* str, char c);
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/**
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* Remove some characters from a string.
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* Return a pointer to the new resulting string (allocated with 'new')
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*/
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static char* RemoveChars(const char* str, const char *toremove);
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/**
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* Remove remove all but 0->9, A->F characters from a string.
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* Return a pointer to the new resulting string (allocated with 'new')
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*/
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static char* RemoveCharsButUpperHex(const char* str);
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/**
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* Replace some characters by another character in a string (in-place)
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* Return a pointer to string
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*/
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static char* ReplaceChars(char* str, const char *toreplace,char replacement);
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/**
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* Returns true if str1 starts (respectively ends) with str2
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*/
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static bool StringStartsWith(const char* str1, const char* str2);
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static bool StringEndsWith(const char* str1, const char* str2);
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/**
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* Returns a pointer to the last occurence of str2 in str1
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*/
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static const char* FindLastString(const char* str1, const char* str2);
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/**
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* Make a duplicate of the string similar to the strdup C function
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* but use new to create the 'new' string, so one can use
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* 'delete' to remove it. Returns 0 if the input is empty.
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*/
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static char* DuplicateString(const char* str);
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/**
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* Return the string cropped to a given length by removing chars in the
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* center of the string and replacing them with an ellipsis (...)
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*/
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static kwsys_stl::string CropString(const kwsys_stl::string&,size_t max_len);
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/**
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* Perform a case-independent string comparison
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*/
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static int Strucmp(const char *s1, const char *s2);
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/**
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* Convert a string in __DATE__ or __TIMESTAMP__ format into a time_t.
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* Return false on error, true on success
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*/
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static bool ConvertDateMacroString(const char *str, time_t *tmt);
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static bool ConvertTimeStampMacroString(const char *str, time_t *tmt);
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/**
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* Split a string on its newlines into multiple lines
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* Return false only if the last line stored had no newline
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*/
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static bool Split(const char* s, kwsys_stl::vector<kwsys_stl::string>& l);
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static bool Split(const char* s, kwsys_stl::vector<kwsys_stl::string>& l, char separator);
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/**
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* Return string with space added between capitalized words
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* (i.e. EatMyShorts becomes Eat My Shorts
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*/
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static kwsys_stl::string AddSpaceBetweenCapitalizedWords(
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const kwsys_stl::string&);
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/**
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* Append two or more strings and produce new one.
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* Programmer must 'delete []' the resulting string, which was allocated
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* with 'new'.
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* Return 0 if inputs are empty or there was an error
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*/
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static char* AppendStrings(
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const char* str1, const char* str2);
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static char* AppendStrings(
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const char* str1, const char* str2, const char* str3);
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/**
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* Estimate the length of the string that will be produced
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* from printing the given format string and arguments. The
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* returned length will always be at least as large as the string
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* that will result from printing.
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* WARNING: since va_arg is called to iterate of the argument list,
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* you will not be able to use this 'ap' anymore from the beginning.
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* It's up to you to call va_end though.
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*/
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static int EstimateFormatLength(const char *format, va_list ap);
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/**
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* Escape specific characters in 'str'.
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*/
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static kwsys_stl::string EscapeChars(
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const char *str, const char *chars_to_escape, char escape_char = '\\');
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/** -----------------------------------------------------------------
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* Filename Manipulation Routines
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* -----------------------------------------------------------------
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*/
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/**
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* Replace Windows file system slashes with Unix-style slashes.
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*/
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static void ConvertToUnixSlashes(kwsys_stl::string& path);
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/**
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* For windows this calls ConvertToWindowsOutputPath and for unix
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* it calls ConvertToUnixOutputPath
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*/
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static kwsys_stl::string ConvertToOutputPath(const char*);
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/**
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* Return true if a file exists in the current directory
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*/
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static bool FileExists(const char* filename);
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/**
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* Return file length
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*/
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static unsigned long FileLength(const char *filename);
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/**
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* Compare file modification times.
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* Return true for successful comparison and false for error.
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* When true is returned, result has -1, 0, +1 for
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* f1 older, same, or newer than f2.
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*/
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static bool FileTimeCompare(const char* f1, const char* f2,
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int* result);
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/**
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* Get the file extension (including ".") needed for an executable
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* on the current platform ("" for unix, ".exe" for Windows).
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*/
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static const char* GetExecutableExtension();
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/**
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* Given a path that exists on a windows machine, return the
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* actuall case of the path as it was created. If the file
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* does not exist path is returned unchanged. This does nothing
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* on unix but return path.
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*/
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static kwsys_stl::string GetActualCaseForPath(const char* path);
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/**
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* Given the path to a program executable, get the directory part of
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* the path with the file stripped off. If there is no directory
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* part, the empty string is returned.
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*/
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static kwsys_stl::string GetProgramPath(const char*);
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static bool SplitProgramPath(const char* in_name,
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kwsys_stl::string& dir,
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kwsys_stl::string& file,
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bool errorReport = true);
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/**
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* Given argv[0] for a unix program find the full path to a running
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* executable. argv0 can be null for windows WinMain programs
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* in this case GetModuleFileName will be used to find the path
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* to the running executable. If argv0 is not a full path,
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* then this will try to find the full path. If the path is not
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* found false is returned, if found true is returned. An error
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* message of the attempted paths is stored in errorMsg.
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* exeName is the name of the executable.
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* buildDir is a possibly null path to the build directory.
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* installPrefix is a possibly null pointer to the install directory.
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*/
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static bool FindProgramPath(const char* argv0,
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kwsys_stl::string& pathOut,
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kwsys_stl::string& errorMsg,
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const char* exeName = 0,
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const char* buildDir = 0,
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const char* installPrefix = 0);
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/**
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* Given a path to a file or directory, convert it to a full path.
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* This collapses away relative paths relative to the cwd argument
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* (which defaults to the current working directory). The full path
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* is returned.
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*/
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static kwsys_stl::string CollapseFullPath(const char* in_relative);
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static kwsys_stl::string CollapseFullPath(const char* in_relative,
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const char* in_base);
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/**
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* Split a path name into its basic components. The first component
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* is one of the following roots:
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* "/" = UNIX
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* "c:/" = Windows full path (can be any drive letter)
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* "c:" = Windows drive-letter relative path (can be any drive letter)
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* "//" = Network path
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* "" = Relative path
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* The remaining components form the path. If there is a trailing
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* slash then the last component is the empty string. The
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* components can be recombined as "c[0]c[1]/c[2]/.../c[n]" to
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* produce the original path.
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*/
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static void SplitPath(const char* p,
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kwsys_stl::vector<kwsys_stl::string>& components);
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/**
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* Join components of a path name into a single string. See
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* SplitPath for the format of the components.
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*/
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static kwsys_stl::string JoinPath(
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const kwsys_stl::vector<kwsys_stl::string>& components);
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/**
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* Compare a path or components of a path.
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*/
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static bool ComparePath(const char* c1, const char* c2);
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/**
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* Return path of a full filename (no trailing slashes)
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*/
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static kwsys_stl::string GetFilenamePath(const kwsys_stl::string&);
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/**
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* Return file name of a full filename (i.e. file name without path)
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*/
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static kwsys_stl::string GetFilenameName(const kwsys_stl::string&);
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/**
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* Split a program from its arguments and handle spaces in the paths
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*/
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static void SplitProgramFromArgs(
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const char* path,
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kwsys_stl::string& program, kwsys_stl::string& args);
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/**
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* Return longest file extension of a full filename (dot included)
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*/
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static kwsys_stl::string GetFilenameExtension(const kwsys_stl::string&);
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/**
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* Return shortest file extension of a full filename (dot included)
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*/
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static kwsys_stl::string GetFilenameLastExtension(
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const kwsys_stl::string& filename);
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/**
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* Return file name without extension of a full filename
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*/
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static kwsys_stl::string GetFilenameWithoutExtension(
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const kwsys_stl::string&);
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/**
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* Return file name without its last (shortest) extension
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*/
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static kwsys_stl::string GetFilenameWithoutLastExtension(
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const kwsys_stl::string&);
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/**
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* Return whether the path represents a full path (not relative)
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*/
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static bool FileIsFullPath(const char*);
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/**
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* For windows return the short path for the given path,
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* Unix just a pass through
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*/
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static bool GetShortPath(const char* path, kwsys_stl::string& result);
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/**
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* Read line from file. Make sure to get everything. Due to a buggy stream
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* library on the HP and another on Mac OSX, we need this very carefully
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* written version of getline. Returns true if any data were read before the
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* end-of-file was reached. If the has_newline argument is specified, it will
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* be true when the line read had a newline character.
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*/
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static bool GetLineFromStream(kwsys_ios::istream& istr,
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kwsys_stl::string& line,
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bool* has_newline=0);
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/**
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* Get the parent directory of the directory or file
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*/
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static kwsys_stl::string GetParentDirectory(const char* fileOrDir);
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/**
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* Check if the given file or directory is in subdirectory of dir
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*/
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static bool IsSubDirectory(const char* fileOrDir, const char* dir);
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/**
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* Convert the path to a string that can be used in a unix makefile.
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* double slashes are removed, and spaces are escaped.
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*/
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static kwsys_stl::string ConvertToUnixOutputPath(const char*);
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/** -----------------------------------------------------------------
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* File Manipulation Routines
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* -----------------------------------------------------------------
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*/
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/**
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* Make a new directory if it is not there. This function
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* can make a full path even if none of the directories existed
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* prior to calling this function.
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*/
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static bool MakeDirectory(const char* path);
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/**
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* Copy the source file to the destination file only
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* if the two files differ.
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*/
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static bool CopyFileIfDifferent(const char* source,
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const char* destination);
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/**
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* Compare the contents of two files. Return true if different
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*/
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static bool FilesDiffer(const char* source, const char* destination);
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/**
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* Return true if the two files are the same file
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*/
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static bool SameFile(const char* file1, const char* file2);
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/**
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* Copy a file
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*/
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static bool CopyFileAlways(const char* source, const char* destination);
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/**
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* Copy content directory to another directory with all files and
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* subdirectories
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*/
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static bool CopyADirectory(const char* source, const char* destination);
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/**
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* Remove a file
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*/
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static bool RemoveFile(const char* source);
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/**
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* Remove a directory
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*/
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static bool RemoveADirectory(const char* source);
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/**
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* Get the maximum full file path length
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*/
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static size_t GetMaximumFilePathLength();
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/**
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* Find a file in the system PATH, with optional extra paths
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*/
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static kwsys_stl::string FindFile(
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const char* name,
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const kwsys_stl::vector<kwsys_stl::string>& path =
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kwsys_stl::vector<kwsys_stl::string>());
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/**
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* Find an executable in the system PATH, with optional extra paths
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*/
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static kwsys_stl::string FindProgram(
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const char* name,
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const kwsys_stl::vector<kwsys_stl::string>& path =
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kwsys_stl::vector<kwsys_stl::string>(),
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bool no_system_path = false);
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static kwsys_stl::string FindProgram(
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const kwsys_stl::vector<kwsys_stl::string>& names,
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const kwsys_stl::vector<kwsys_stl::string>& path =
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kwsys_stl::vector<kwsys_stl::string>(),
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bool no_system_path = false);
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/**
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* Find a library in the system PATH, with optional extra paths
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*/
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static kwsys_stl::string FindLibrary(
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const char* name,
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const kwsys_stl::vector<kwsys_stl::string>& path);
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/**
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* Return true if the file is a directory
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*/
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static bool FileIsDirectory(const char* name);
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/**
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* Return true if the file is a symlink
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*/
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static bool FileIsSymlink(const char* name);
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/**
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* Return true if the file has a given signature (first set of bytes)
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*/
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static bool FileHasSignature(
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const char* filename, const char *signature, long offset = 0);
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|
|
/**
|
|
* Attempt to detect and return the type of a file.
|
|
* Up to 'length' bytes are read from the file, if more than 'percent_bin' %
|
|
* of the bytes are non-textual elements, the file is considered binary,
|
|
* otherwise textual. Textual elements are bytes in the ASCII [0x20, 0x7E]
|
|
* range, but also \n, \r, \t.
|
|
* The algorithm is simplistic, and should probably check for usual file
|
|
* extensions, 'magic' signature, unicode, etc.
|
|
*/
|
|
enum FileTypeEnum
|
|
{
|
|
FileTypeUnknown,
|
|
FileTypeBinary,
|
|
FileTypeText
|
|
};
|
|
static SystemTools::FileTypeEnum DetectFileType(
|
|
const char* filename,
|
|
unsigned long length = 256,
|
|
double percent_bin = 0.05);
|
|
|
|
/**
|
|
* Try to locate the file 'filename' in the directory 'dir'.
|
|
* If 'filename' is a fully qualified filename, the basename of the file is
|
|
* used to check for its existence in 'dir'.
|
|
* If 'dir' is not a directory, GetFilenamePath() is called on 'dir' to
|
|
* get its directory first (thus, you can pass a filename as 'dir', as
|
|
* a convenience).
|
|
* 'filename_found' is assigned the fully qualified name/path of the file
|
|
* if it is found (not touched otherwise).
|
|
* If 'try_filename_dirs' is true, try to find the file using the
|
|
* components of its path, i.e. if we are looking for c:/foo/bar/bill.txt,
|
|
* first look for bill.txt in 'dir', then in 'dir'/bar, then in 'dir'/foo/bar
|
|
* etc.
|
|
* Return true if the file was found, false otherwise.
|
|
*/
|
|
static bool LocateFileInDir(const char *filename,
|
|
const char *dir,
|
|
kwsys_stl::string& filename_found,
|
|
int try_filename_dirs = 0);
|
|
|
|
/**
|
|
* Check if the given file exists in one of the parent directory of the
|
|
* given file or directory and if it does, return the name of the file.
|
|
* Toplevel specifies the top-most directory to where it will look.
|
|
*/
|
|
static kwsys_stl::string FileExistsInParentDirectories(const char* fname,
|
|
const char* directory, const char* toplevel);
|
|
|
|
/**
|
|
* Return file's modified time
|
|
*/
|
|
static long int ModifiedTime(const char* filename);
|
|
|
|
/**
|
|
* Return file's creation time (Win32: works only for NTFS, not FAT)
|
|
*/
|
|
static long int CreationTime(const char* filename);
|
|
|
|
/**
|
|
* Get and set permissions of the file.
|
|
*/
|
|
static bool GetPermissions(const char* file, mode_t& mode);
|
|
static bool SetPermissions(const char* file, mode_t mode);
|
|
|
|
/** -----------------------------------------------------------------
|
|
* Time Manipulation Routines
|
|
* -----------------------------------------------------------------
|
|
*/
|
|
|
|
/**
|
|
* Get current time as a double. On certain platforms this will
|
|
* return higher resolution than seconds:
|
|
* (1) gettimeofday() -- resolution in microseconds
|
|
* (2) ftime() -- resolution in milliseconds
|
|
* (3) time() -- resolution in seconds
|
|
*/
|
|
static double GetTime();
|
|
|
|
/**
|
|
* Get current date/time
|
|
*/
|
|
static kwsys_stl::string GetCurrentDateTime(const char* format);
|
|
|
|
/** -----------------------------------------------------------------
|
|
* Registry Manipulation Routines
|
|
* -----------------------------------------------------------------
|
|
*/
|
|
|
|
/**
|
|
* Read a registry value
|
|
*/
|
|
static bool ReadRegistryValue(const char *key, kwsys_stl::string &value);
|
|
|
|
/**
|
|
* Write a registry value
|
|
*/
|
|
static bool WriteRegistryValue(const char *key, const char *value);
|
|
|
|
/**
|
|
* Delete a registry value
|
|
*/
|
|
static bool DeleteRegistryValue(const char *key);
|
|
|
|
/** -----------------------------------------------------------------
|
|
* Environment Manipulation Routines
|
|
* -----------------------------------------------------------------
|
|
*/
|
|
|
|
/**
|
|
* Add the paths from the environment variable PATH to the
|
|
* string vector passed in. If env is set then the value
|
|
* of env will be used instead of PATH.
|
|
*/
|
|
static void GetPath(kwsys_stl::vector<kwsys_stl::string>& path,
|
|
const char* env=0);
|
|
|
|
/**
|
|
* Read an environment variable
|
|
*/
|
|
static const char* GetEnv(const char* key);
|
|
static bool GetEnv(const char* key, kwsys_stl::string& result);
|
|
|
|
/**
|
|
* Get current working directory CWD
|
|
*/
|
|
static kwsys_stl::string GetCurrentWorkingDirectory(bool collapse =true);
|
|
|
|
/**
|
|
* Change directory the the directory specified
|
|
*/
|
|
static int ChangeDirectory(const char* dir);
|
|
|
|
/**
|
|
* Get the result of strerror(errno)
|
|
*/
|
|
static kwsys_stl::string GetLastSystemError();
|
|
|
|
/**
|
|
* When building DEBUG with MSVC, this enables a hook that prevents
|
|
* error dialogs from popping up if the program is being run from
|
|
* DART.
|
|
*/
|
|
static void EnableMSVCDebugHook();
|
|
|
|
/**
|
|
* Get the width of the terminal window. The code may or may not work, so
|
|
* make sure you have some resonable defaults prepared if the code returns
|
|
* some bogus size.
|
|
*/
|
|
static int GetTerminalWidth();
|
|
|
|
/**
|
|
* Add an entry in the path translation table.
|
|
*/
|
|
static void AddTranslationPath(const char * dir, const char * refdir);
|
|
|
|
/**
|
|
* If dir is different after CollapseFullPath is called,
|
|
* Then insert it into the path translation table
|
|
*/
|
|
static void AddKeepPath(const char* dir);
|
|
|
|
/**
|
|
* Update path by going through the Path Translation table;
|
|
*/
|
|
static void CheckTranslationPath(kwsys_stl::string & path);
|
|
|
|
/**
|
|
* Delay the execution for a specified amount of time specified
|
|
* in miliseconds
|
|
*/
|
|
static void Delay(unsigned int msec);
|
|
|
|
/**
|
|
* Get the operating system name and version
|
|
* This is implemented for Win32 only for the moment
|
|
*/
|
|
static kwsys_stl::string GetOperatingSystemNameAndVersion();
|
|
|
|
/**
|
|
* Convert windows-style arguments given as a command-line string
|
|
* into more traditional argc/argv arguments.
|
|
* Note that argv[0] will be assigned the executable name using
|
|
* the ::GetModuleFileName function.
|
|
*/
|
|
static void ConvertWindowsCommandLineToUnixArguments(
|
|
const char *cmd_line, int *argc, char ***argv);
|
|
|
|
protected:
|
|
// these two functions can be called from ConvertToOutputPath
|
|
|
|
/**
|
|
* Convert the path to string that can be used in a windows project or
|
|
* makefile. Double slashes are removed if they are not at the start of
|
|
* the string, the slashes are converted to windows style backslashes, and
|
|
* if there are spaces in the string it is double quoted.
|
|
*/
|
|
static kwsys_stl::string ConvertToWindowsOutputPath(const char*);
|
|
|
|
private:
|
|
/**
|
|
* Allocate the std::map that serve as the Path Translation table.
|
|
*/
|
|
static void ClassInitialize();
|
|
|
|
/**
|
|
* Deallocate the std::map that serve as the Path Translation table.
|
|
*/
|
|
static void ClassFinalize();
|
|
|
|
/**
|
|
* This method prevents warning on SGI
|
|
*/
|
|
SystemToolsManager* GetSystemToolsManager()
|
|
{
|
|
return &SystemToolsManagerInstance;
|
|
}
|
|
|
|
/**
|
|
* Path translation table from dir to refdir
|
|
* Each time 'dir' will be found it will be replace by 'refdir'
|
|
*/
|
|
static SystemToolsTranslationMap *TranslationMap;
|
|
friend class SystemToolsManager;
|
|
};
|
|
|
|
} // namespace @KWSYS_NAMESPACE@
|
|
|
|
/* Undefine temporary macros. */
|
|
#if !defined (KWSYS_NAMESPACE) && !@KWSYS_NAMESPACE@_NAME_IS_KWSYS
|
|
# undef kwsys_stl
|
|
# undef kwsys_ios
|
|
#endif
|
|
|
|
#endif
|