4.3BSD - /usr/src/bin/sh/string.c

   1: #ifndef lint
   2: static char sccsid[] = "@(#)string.c	4.2 8/11/83";
   3: #endif
   4: 
   5: #
   6: /*
   7:  * UNIX shell
   8:  *
   9:  * S. R. Bourne
  10:  * Bell Telephone Laboratories
  11:  *
  12:  */
  13: 
  14: #include    "defs.h"
  15: 
  16: 
  17: /* ========	general purpose string handling ======== */
  18: 
  19: 
  20: STRING  movstr(a,b)
  21:     REG STRING  a, b;
  22: {
  23:     WHILE *b++ = *a++ DONE
  24:     return(--b);
  25: }
  26: 
  27: INT any(c,s)
  28:     REG CHAR    c;
  29:     STRING      s;
  30: {
  31:     REG CHAR d;
  32: 
  33:     WHILE d = *s++
  34:     DO  IF d==c
  35:         THEN    return(TRUE);
  36:         FI
  37:     OD
  38:     return(FALSE);
  39: }
  40: 
  41: INT cf(s1, s2)
  42:     REG STRING s1, s2;
  43: {
  44:     WHILE *s1++ == *s2
  45:     DO  IF *s2++==0
  46:         THEN    return(0);
  47:         FI
  48:     OD
  49:     return(*--s1 - *s2);
  50: }
  51: 
  52: INT length(as)
  53:     STRING as;
  54: {
  55:     REG STRING s;
  56: 
  57:     IF s=as THEN WHILE *s++ DONE FI
  58:     return(s-as);
  59: }

Defined functions

Defined variables