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- /*********
- *
- * RJUST.C
- *
- * by Tom Rettig
- *
- * Placed in the public domain by Tom Rettig Associates, 10/22/1990.
- *
- * Syntax: RJUST( <expC> )
- * Return: <expC> with trailing spaces moved to left end.
- * Return string is same length as <expC>.
- *********/
-
- #include "trlib.h"
-
- TRTYPE rjust()
- {
- char *instr, *ret;
- int i, j, pos, len;
- static char funcname[] = { "rjust" };
- if ( PCOUNT==1 && ISCHAR(1) )
- {
- instr = _parc(1);
- len = _tr_strlen(instr);
- ret = _tr_allocmem( (unsigned)(len+1));
-
- if ( ret )
- {
- if ( instr[len-1]==SPACEC )
- {
- for ( j=len-1; instr[j]==SPACEC; j-- )
- ;
- pos = ++j; /* right: first char past spaces */
-
- for ( i=0; instr[j]==SPACEC; i++, j++ )
- ret[i] = instr[j];
-
- /* fill return buffer with chars */
- for ( j=0; j<pos; i++, j++ )
- ret[i] = instr[j];
-
- ret[i] = NULLC;
- _retc( ret );
- }
- else /* return unchanged if no trailing spaces */
- _retc( instr );
-
- _tr_freemem( ret,(unsigned)(len+1));
- }
- else /* return unchanged if no memory */
- _retc( instr );
- }
- else
- _retc( _tr_errmsgs(funcname,E_SYNTAX) );
- }
-
-