peek              336 sh.c             peek(&s, es, "");
peek              351 sh.c             while(peek(ps, es, "&")){
peek              355 sh.c             if(peek(ps, es, ";")){
peek              368 sh.c             if(peek(ps, es, "|")){
peek              381 sh.c             while(peek(ps, es, "<>")){
peek              405 sh.c             if(!peek(ps, es, "("))
peek              409 sh.c             if(!peek(ps, es, ")"))
peek              424 sh.c             if(peek(ps, es, "("))
peek              432 sh.c             while(!peek(ps, es, "|)&;")){