108 lines
3.0 KiB
C++
108 lines
3.0 KiB
C++
/***
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*makepath.c - create path name from components
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*
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*
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*Purpose:
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* To provide support for creation of full path names from components
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*
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*******************************************************************************/
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//ASH: Need this on xbox for pre-compiled headers.
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#include "stdafx.h"
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#include "makepath.h"
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/***
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*void _makepath() - build path name from components
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*
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*Purpose:
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* create a path name from its individual components
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*
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*Entry:
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* char *path - pointer to buffer for constructed path
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* char *drive - pointer to drive component, may or may not contain
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* trailing ':'
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* char *dir - pointer to subdirectory component, may or may not include
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* leading and/or trailing '/' or '\' characters
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* char *fname - pointer to file base name component
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* char *ext - pointer to extension component, may or may not contain
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* a leading '.'.
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*
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*Exit:
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* path - pointer to constructed path name
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*
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*Exceptions:
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*
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*******************************************************************************/
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#ifndef WIN32
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extern "C" void portable_makepath (
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char *path,
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const char *drive,
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const char *dir,
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const char *fname,
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const char *ext
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)
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{
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const char *p;
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/* we assume that the arguments are in the following form (although we
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* do not diagnose invalid arguments or illegal filenames (such as
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* names longer than 8.3 or with illegal characters in them)
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*
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* drive:
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* A ; or
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* A:
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* dir:
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* \top\next\last\ ; or
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* /top/next/last/ ; or
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* either of the above forms with either/both the leading
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* and trailing / or \ removed. Mixed use of '/' and '\' is
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* also tolerated
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* fname:
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* any valid file name
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* ext:
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* any valid extension (none if empty or null )
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*/
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/* copy drive */
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if (drive && *drive) {
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*path++ = *drive;
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*path++ = (':');
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}
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/* copy dir */
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if ((p = dir) && *p) {
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do {
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*path++ = *p++;
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}
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while (*p);
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if (*(p-1) != '/' && *(p-1) != ('\\')) {
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*path++ = ('\\');
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}
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}
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/* copy fname */
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if (p = fname) {
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while (*p) {
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*path++ = *p++;
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}
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}
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/* copy ext, including 0-terminator - check to see if a '.' needs
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* to be inserted.
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*/
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if (p = ext) {
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if (*p && *p != ('.')) {
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*path++ = ('.');
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}
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while (*path++ = *p++)
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;
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}
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else {
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/* better add the 0-terminator */
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*path = ('\0');
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}
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}
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#endif |