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/* +++Date last modified: 05-Jul-1997 */
/*
** TRIM.C - Remove leading, trailing, & excess embedded spaces
**
** public domain by Bob Stout & Michael Dehlwes
*/
#include
#include "snip_str.h"
#if defined(__cplusplus) && __cplusplus
extern "C" {
#endif
char *trim (char *str)
{
char *ibuf, *obuf;
if (str)
{
for (ibuf = obuf = str; *ibuf; )
{
while (*ibuf && (isspace (*ibuf)))
ibuf++;
if (*ibuf && (obuf != str))
*(obuf++) = ' ';
while (*ibuf && (!isspace (*ibuf)))
*(obuf++) = *(ibuf++);
}
*obuf = NUL;
}
return (str);
}
#if defined(__cplusplus) && __cplusplus
}
#endif
#ifdef TEST
#include
#include
int main (int argc, char *argv[])
{
if (argc == 2)
{
printf ("trim(\"%s\")\n", argv[1]);
printf ("returned \"%s\"\n", trim (argv[1]));
}
else
{
fprintf (stderr, "To test this function, call TRIM\n");
fprintf (stderr, "with an argument enclosed in quotes.\n");
fprintf (stderr, "Example:\n");
fprintf (stderr, "C:\\>trim \" testtest\"\n");
fprintf (stderr, "trim(\" testtest\"\n");
fprintf (stderr, "returned \"test test\"\n\n");
fprintf (stderr, "C:\\>_\n");
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
#endif /* TEST */
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