/* @(#)string.c 1.2 */ # /* * UNIX shell * * S. R. Bourne * Bell Telephone Laboratories * */ #include "defs.h" /* ======== general purpose string handling ======== */ STRING movstr(a,b) REG STRING a, b; { WHILE *b++ = *a++ DONE return(--b); } INT any(c,s) REG CHAR c; STRING s; { REG CHAR d; WHILE d = *s++ DO IF d==c THEN return(TRUE); FI OD return(FALSE); } INT cf(s1, s2) REG STRING s1, s2; { WHILE *s1++ == *s2 DO IF *s2++==0 THEN return(0); FI OD return(*--s1 - *s2); } INT length(as) STRING as; { REG STRING s; IF s=as THEN WHILE *s++ DONE FI return(s-as); }