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ENH: Adding Shell_Flag_EchoWindows option to setup escapes for arguments to the native echo command in a shell. This special case is needed to avoid adding quotes when passing text to echo in a native windows shell which does no command line parsing at all.

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This commit is contained in:
Brad King 2006-10-04 18:52:24 -04:00
parent 5a6b0792cd
commit 038c9e27d7
2 changed files with 20 additions and 1 deletions
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14
Source/kwsys/System.c
View File

@ -66,6 +66,12 @@ static int kwsysSystem_Shell__CharNeedsQuotesOnUnix(char c)
/*--------------------------------------------------------------------------*/
static int kwsysSystem_Shell__CharNeedsQuotes(char c, int isUnix, int flags)
{
/* On Windows the built-in command shell echo never needs quotes. */
if(!isUnix && (flags & kwsysSystem_Shell_Flag_EchoWindows))
{
return 0;
}
/* On all platforms quotes are needed to preserve whitespace. */
if(kwsysSystem_Shell__CharIsWhitespace(c))
{
@ -227,6 +233,10 @@ static int kwsysSystem_Shell__GetArgumentSize(const char* in,
++size;
}
}
else if(flags & kwsysSystem_Shell_Flag_EchoWindows)
{
/* On Windows the built-in command shell echo never needs escaping. */
}
else
{
/* On Windows only backslashes and double-quotes need escaping. */
@ -334,6 +344,10 @@ static char* kwsysSystem_Shell__GetArgument(const char* in, char* out,
*out++ = '\\';
}
}
else if(flags & kwsysSystem_Shell_Flag_EchoWindows)
{
/* On Windows the built-in command shell echo never needs escaping. */
}
else
{
/* On Windows only backslashes and double-quotes need escaping. */

7
Source/kwsys/System.h.in
View File

@ -31,6 +31,7 @@
#define kwsysSystem_Shell_Flag_e kwsys_ns(System_Shell_Flag_e)
#define kwsysSystem_Shell_Flag_Make kwsys_ns(System_Shell_Flag_Make)
#define kwsysSystem_Shell_Flag_VSIDE kwsys_ns(System_Shell_Flag_VSIDE)
#define kwsysSystem_Shell_Flag_EchoWindows kwsys_ns(System_Shell_Flag_EchoWindows)
#define kwsysSystem_Shell_Flag_AllowMakeVariables kwsys_ns(System_Shell_Flag_AllowMakeVariables)
#if defined(__cplusplus)
@ -78,12 +79,15 @@ enum kwsysSystem_Shell_Flag_e
Shell_Flag_Make. */
kwsysSystem_Shell_Flag_VSIDE = (1<<1),
/** In a windows whell the argument is being passed to "echo". */
kwsysSystem_Shell_Flag_EchoWindows = (1<<2),
/** Make variable reference syntax $(MAKEVAR) should not be escaped
to allow a build tool to replace it. Replacement values
containing spaces, quotes, backslashes, or other
non-alphanumeric characters that have significance to some makes
or shells produce undefined behavior. */
kwsysSystem_Shell_Flag_AllowMakeVariables = (1<<2)
kwsysSystem_Shell_Flag_AllowMakeVariables = (1<<3)
};
#if defined(__cplusplus)
@ -102,6 +106,7 @@ enum kwsysSystem_Shell_Flag_e
# undef kwsysSystem_Shell_Flag_e
# undef kwsysSystem_Shell_Flag_Make
# undef kwsysSystem_Shell_Flag_VSIDE
# undef kwsysSystem_Shell_Flag_EchoWindows
# undef kwsysSystem_Shell_Flag_AllowMakeVariables
#endif