ref: 87288afa5ac476efb3ef1ed40df658427339f13e
dir: /progs/becho.c.ms/
.P1 .ps -1 .ti -1i .B .BX becho.c .ps +1 .CW .ps -2 .vs .15i #include <u.h> #include <libc.h> void usage(void) { fprint(2, "usage: %s [-nv] [-d delims] args\en", argv0); exits("usage"); } void main(int argc, char* argv[]) { int nflag = 0; int vflag = 0; char* d = "[]"; int i; ARGBEGIN{ case 'v': vflag = 1; break; case 'n': nflag = 1; break; case 'd': d = ARGF(); if (d == nil || strlen(d) < 2) usage(); break; .ps +2 .P2 .P1 .ps -2 .vs .15i default: usage(); }ARGEND; for (i = 0; i < argc; i++) if (vflag) print("%c%s%c ", d[0], argv[i], d[1]); else print("%s ", argv[i]); if (!nflag) print("\en"); exits(nil); } .ps +2 .P2