1 /* $Header: arg.c,v 1.0.1.3 88/01/26 12:30:33 root Exp $
4 * Revision 1.0.1.3 88/01/26 12:30:33 root
5 * patch 6: sprintf didn't finish processing format string when out of args.
7 * Revision 1.0.1.2 88/01/24 03:52:34 root
8 * patch 2: added STATBLKS dependencies.
10 * Revision 1.0.1.1 88/01/21 21:27:10 root
11 * Now defines signal return values correctly using VOIDSIG.
13 * Revision 1.0 87/12/18 13:04:33 root
32 register SPAT *spat = arg[2].arg_ptr.arg_spat;
37 fatal("panic: do_match\n");
38 if (spat->spat_flags & SPAT_USED) {
45 if (spat->spat_runtime) {
46 t = str_get(eval(spat->spat_runtime,Null(STR***)));
49 deb("2.SPAT /%s/\n",t);
51 if (d = compile(&spat->spat_compex,t,TRUE,FALSE)) {
53 deb("/%s/: %s\n", t, d);
57 if (spat->spat_compex.complen <= 1 && curspat)
59 if (execute(&spat->spat_compex, s, TRUE, 0)) {
60 if (spat->spat_compex.numsubs)
72 if (spat->spat_flags & SPAT_USE_ONCE)
76 deb("2.SPAT %c%s%c\n",ch,spat->spat_compex.precomp,ch);
79 if (spat->spat_compex.complen <= 1 && curspat)
81 if (spat->spat_first) {
82 if (spat->spat_flags & SPAT_SCANFIRST) {
83 str_free(spat->spat_first);
84 spat->spat_first = Nullstr; /* disable optimization */
86 else if (*spat->spat_first->str_ptr != *s ||
87 strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
90 if (execute(&spat->spat_compex, s, TRUE, 0)) {
91 if (spat->spat_compex.numsubs)
93 if (spat->spat_flags & SPAT_USE_ONCE)
94 spat->spat_flags |= SPAT_USED;
113 spat = arg[2].arg_ptr.arg_spat;
116 fatal("panic: do_subst\n");
117 else if (spat->spat_runtime) {
120 m = str_get(eval(spat->spat_runtime,Null(STR***)));
121 if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
123 deb("/%s/: %s\n", m, d);
130 deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
133 if (spat->spat_compex.complen <= 1 && curspat)
135 if (spat->spat_first) {
136 if (spat->spat_flags & SPAT_SCANFIRST) {
137 str_free(spat->spat_first);
138 spat->spat_first = Nullstr; /* disable optimization */
140 else if (*spat->spat_first->str_ptr != *s ||
141 strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
144 if (m = execute(&spat->spat_compex, s, TRUE, 1)) {
147 dstr = str_new(str_len(str));
148 if (spat->spat_compex.numsubs)
152 fatal("Substitution loop?\n");
153 if (spat->spat_compex.numsubs)
154 s = spat->spat_compex.subbase;
155 str_ncat(dstr,s,m-s);
156 s = spat->spat_compex.subend[0];
157 str_scat(dstr,eval(spat->spat_repl,Null(STR***)));
158 if (spat->spat_flags & SPAT_USE_ONCE)
160 } while (m = execute(&spat->spat_compex, s, FALSE, 1));
162 str_replace(str,dstr);
176 register int matches = 0;
179 tbl = arg[2].arg_ptr.arg_cval;
182 fatal("panic: do_trans\n");
189 if (ch = tbl[*s & 0377]) {
200 do_split(s,spat,retary)
208 static ARRAY *myarray = Null(ARRAY*);
215 fatal("panic: do_split\n");
216 else if (spat->spat_runtime) {
219 m = str_get(eval(spat->spat_runtime,Null(STR***)));
220 if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
222 deb("/%s/: %s\n", m, d);
229 deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
235 ary = spat->spat_repl[1].arg_ptr.arg_stab->stab_array;
237 myarray = ary = anew();
239 while (*s && (m = execute(&spat->spat_compex, s, (iters == 0), 1))) {
240 if (spat->spat_compex.numsubs)
241 s = spat->spat_compex.subbase;
243 str_nset(dstr,s,m-s);
244 astore(ary, iters++, dstr);
246 fatal("Substitution loop?\n");
247 s = spat->spat_compex.subend[0];
249 if (*s) { /* ignore field after final "whitespace" */
250 dstr = str_new(0); /* if they interpolate, it's null anyway */
252 astore(ary, iters++, dstr);
255 while (iters > 0 && !*str_get(afetch(ary,iters-1)))
259 sarg = (STR**)safemalloc((iters+2)*sizeof(STR*));
262 sarg[iters+1] = Nullstr;
263 for (i = 1; i <= iters; i++)
264 sarg[i] = afetch(ary,i-1);
271 do_join(arg,delim,str)
273 register char *delim;
276 STR **tmpary; /* must not be register */
279 (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
282 str_sset(str,*elem++);
283 for (; *elem; elem++) {
288 safefree((char*)tmpary);
297 int len = strlen(name);
298 register STIO *stio = stab->stab_io;
300 while (len && isspace(name[len-1]))
303 stio = stab->stab_io = stio_new();
305 if (stio->type == '|')
307 else if (stio->type != '-')
313 for (name++; isspace(*name); name++) ;
314 fp = popen(name,"w");
316 else if (*name == '>' && name[1] == '>') {
317 for (name += 2; isspace(*name); name++) ;
318 fp = fopen(name,"a");
320 else if (*name == '>') {
321 for (name++; isspace(*name); name++) ;
322 if (strEQ(name,"-")) {
327 fp = fopen(name,"w");
331 for (name++; isspace(*name); name++) ;
332 if (strEQ(name,"-")) {
337 fp = fopen(name,"r");
339 else if (name[len-1] == '|') {
341 while (len && isspace(name[len-1]))
343 for (; isspace(*name); name++) ;
344 fp = popen(name,"r");
349 for (; isspace(*name); name++) ;
350 if (strEQ(name,"-")) {
355 fp = fopen(name,"r");
360 if (stio->type != '|' && stio->type != '-') {
361 if (fstat(fileno(fp),&statbuf) < 0) {
365 if ((statbuf.st_mode & S_IFMT) != S_IFREG &&
366 (statbuf.st_mode & S_IFMT) != S_IFCHR) {
382 while (alen(stab->stab_array) >= 0L) {
383 str = ashift(stab->stab_array);
384 str_sset(stab->stab_val,str);
385 STABSET(stab->stab_val);
386 oldname = str_get(stab->stab_val);
387 if (do_open(stab,oldname)) {
390 str_cat(str,inplace);
392 rename(oldname,str->str_ptr);
394 UNLINK(str->str_ptr);
395 link(oldname,str->str_ptr);
399 sprintf(tokenbuf,">%s",oldname);
400 do_open(argvoutstab,tokenbuf);
401 defoutstab = argvoutstab;
404 return stab->stab_io->fp;
407 fprintf(stderr,"Can't open %s\n",str_get(str));
411 do_close(argvoutstab,FALSE);
412 defoutstab = stabent("stdout",TRUE);
418 do_close(stab,explicit)
423 register STIO *stio = stab->stab_io;
425 if (!stio) /* never opened */
428 if (stio->type == '|')
429 retval = (pclose(stio->fp) >= 0);
430 else if (stio->type == '-')
433 retval = (fclose(stio->fp) != EOF);
452 stio = stab->stab_io;
458 #ifdef STDSTDIO /* (the code works without this) */
459 if (stio->fp->_cnt) /* cheat a little, since */
460 return FALSE; /* this is the most usual case */
465 ungetc(ch, stio->fp);
468 if (stio->flags & IOF_ARGV) { /* not necessarily a real EOF yet? */
469 if (!nextargv(stab)) /* get another fp handy */
473 return TRUE; /* normal fp, definitely end of file */
488 stio = stab->stab_io;
489 if (!stio || !stio->fp)
492 return ftell(stio->fp);
496 do_seek(stab, pos, whence)
506 stio = stab->stab_io;
507 if (!stio || !stio->fp)
510 return fseek(stio->fp, pos, whence) >= 0;
513 do_stat(arg,sarg,retary)
519 static ARRAY *myarray = Null(ARRAY*);
525 myarray = ary = anew();
527 if (arg[1].arg_type == A_LVAL) {
528 tmpstab = arg[1].arg_ptr.arg_stab;
529 if (!tmpstab->stab_io ||
530 fstat(fileno(tmpstab->stab_io->fp),&statbuf) < 0) {
535 if (stat(str_get(sarg[1]),&statbuf) < 0)
540 apush(ary,str_nmake((double)statbuf.st_dev));
541 apush(ary,str_nmake((double)statbuf.st_ino));
542 apush(ary,str_nmake((double)statbuf.st_mode));
543 apush(ary,str_nmake((double)statbuf.st_nlink));
544 apush(ary,str_nmake((double)statbuf.st_uid));
545 apush(ary,str_nmake((double)statbuf.st_gid));
546 apush(ary,str_nmake((double)statbuf.st_rdev));
547 apush(ary,str_nmake((double)statbuf.st_size));
548 apush(ary,str_nmake((double)statbuf.st_atime));
549 apush(ary,str_nmake((double)statbuf.st_mtime));
550 apush(ary,str_nmake((double)statbuf.st_ctime));
552 apush(ary,str_nmake((double)statbuf.st_blksize));
553 apush(ary,str_nmake((double)statbuf.st_blocks));
555 apush(ary,str_make("");
556 apush(ary,str_make("");
559 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
561 sarg[max+1] = Nullstr;
562 for (i = 1; i <= max; i++)
563 sarg[i] = afetch(ary,i-1);
573 static ARRAY *myarray = Null(ARRAY*);
580 myarray = ary = anew();
582 if (times(×buf) < 0)
587 apush(ary,str_nmake(((double)timesbuf.tms_utime)/60.0));
588 apush(ary,str_nmake(((double)timesbuf.tms_stime)/60.0));
589 apush(ary,str_nmake(((double)timesbuf.tms_cutime)/60.0));
590 apush(ary,str_nmake(((double)timesbuf.tms_cstime)/60.0));
592 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
594 sarg[max+1] = Nullstr;
595 for (i = 1; i <= max; i++)
596 sarg[i] = afetch(ary,i-1);
602 do_time(tmbuf,retary)
607 static ARRAY *myarray = Null(ARRAY*);
615 myarray = ary = anew();
622 apush(ary,str_nmake((double)tmbuf->tm_sec));
623 apush(ary,str_nmake((double)tmbuf->tm_min));
624 apush(ary,str_nmake((double)tmbuf->tm_hour));
625 apush(ary,str_nmake((double)tmbuf->tm_mday));
626 apush(ary,str_nmake((double)tmbuf->tm_mon));
627 apush(ary,str_nmake((double)tmbuf->tm_year));
628 apush(ary,str_nmake((double)tmbuf->tm_wday));
629 apush(ary,str_nmake((double)tmbuf->tm_yday));
630 apush(ary,str_nmake((double)tmbuf->tm_isdst));
632 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
634 sarg[max+1] = Nullstr;
635 for (i = 1; i <= max; i++)
636 sarg[i] = afetch(ary,i-1);
643 do_sprintf(str,len,sarg)
652 static STR *sargnull = &str_no;
655 len--; /* don't count pattern string */
657 for (s = str_get(*(sarg++)); *s; len--) {
658 if (len <= 0 || !*sarg) {
663 for (t = s; *t && *t != '%'; t++) ;
665 break; /* not enough % patterns, oh well */
666 for (t++; *sarg && *t && t != s; t++) {
680 case 'D': case 'X': case 'O':
683 case 'd': case 'x': case 'o': case 'c':
687 sprintf(buf,s,(long)str_gnum(*(sarg++)));
689 sprintf(buf,s,(int)str_gnum(*(sarg++)));
693 case 'E': case 'e': case 'f': case 'G': case 'g':
696 sprintf(buf,s,str_gnum(*(sarg++)));
703 sprintf(buf,s,str_get(*(sarg++)));
732 STR **tmpary; /* must not be register */
734 register bool retval;
737 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
738 if (arg->arg_type == O_PRTF) {
739 do_sprintf(arg->arg_ptr.arg_str,32767,tmpary);
740 retval = do_print(str_get(arg->arg_ptr.arg_str),fp);
744 for (elem = tmpary+1; *elem; elem++) {
748 if ((*elem)->str_nok || str_gnum(*elem) != 0.0)
749 fprintf(fp, ofmt, str_gnum(*elem));
753 retval = do_print(str_get(*elem), fp);
758 retval = do_print(ors, fp);
760 safefree((char*)tmpary);
768 STR **tmpary; /* must not be register */
774 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
776 for (elem = tmpary+1; *elem; elem++)
779 argv = (char**)safemalloc((i+1)*sizeof(char*));
781 for (elem = tmpary+1; *elem; elem++) {
782 *a++ = str_get(*elem);
785 execvp(argv[0],argv);
786 safefree((char*)argv);
788 safefree((char*)tmpary);
796 STR **tmpary; /* must not be register */
801 /* see if there are shell metacharacters in it */
803 for (s = cmd; *s; s++) {
804 if (*s != ' ' && !isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`",*s)) {
805 execl("/bin/sh","sh","-c",cmd,0);
809 argv = (char**)safemalloc(((s - cmd) / 2 + 2)*sizeof(char*));
813 while (isspace(*s)) s++;
816 while (*s && !isspace(*s)) s++;
822 execvp(argv[0],argv);
823 safefree((char*)argv);
832 STR **tmpary; /* must not be register */
834 register STR *str = &str_no;
836 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
837 for (elem = tmpary+1; *elem; elem++) {
842 safefree((char*)tmpary);
850 STR **tmpary; /* must not be register */
852 register STR *str = &str_no;
855 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
857 for (elem = tmpary+1; *elem; elem++)
861 for (elem = tmpary+1; *elem; elem++) {
866 safefree((char*)tmpary);
874 STR **tmpary; /* must not be register */
883 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
885 for (elem = tmpary+1; *elem; elem++)
890 val = (int)str_gnum(tmpary[1]);
891 for (elem = tmpary+2; *elem; elem++)
892 if (chmod(str_get(*elem),val))
899 val = (int)str_gnum(tmpary[1]);
900 val2 = (int)str_gnum(tmpary[2]);
901 for (elem = tmpary+3; *elem; elem++)
902 if (chown(str_get(*elem),val,val2))
910 val = (int)str_gnum(tmpary[1]);
913 for (elem = tmpary+2; *elem; elem++)
914 if (kill(atoi(str_get(*elem)),val))
919 for (elem = tmpary+1; *elem; elem++)
920 if (UNLINK(str_get(*elem)))
925 safefree((char*)tmpary);
932 register char **sarg;
937 savearray = defstab->stab_array;
938 defstab->stab_array = anew();
939 if (arg[1].arg_flags & AF_SPECIAL)
940 (void)do_push(arg,defstab->stab_array);
941 else if (arg[1].arg_type != A_NULL) {
943 str_sset(str,sarg[1]);
944 apush(defstab->stab_array,str);
946 str = cmd_exec(arg[2].arg_ptr.arg_stab->stab_sub);
947 afree(defstab->stab_array); /* put back old $_[] */
948 defstab->stab_array = savearray;
953 do_assign(retstr,arg)
957 STR **tmpary; /* must not be register */
958 register ARG *larg = arg[1].arg_ptr.arg_arg;
966 (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
968 if (arg->arg_flags & AF_COMMON) {
970 for (elem=tmpary+2; *elem; elem++) {
971 *elem = str_static(*elem);
975 if (larg->arg_type == O_LIST) {
976 lasti = larg->arg_len;
977 for (i=1,elem=tmpary+1; i <= lasti; i++) {
979 s = str_get(*(elem++));
982 switch (larg[i].arg_type) {
985 str = STAB_STR(larg[i].arg_ptr.arg_stab);
988 str = eval(larg[i].arg_ptr.arg_arg,Null(STR***));
994 i = elem - tmpary - 1;
996 else { /* should be an array name */
997 ary = larg[1].arg_ptr.arg_stab->stab_array;
998 for (i=0,elem=tmpary+1; *elem; i++) {
1001 str_sset(str,*(elem++));
1004 ary->ary_fill = i - 1; /* they can get the extra ones back by */
1005 } /* setting an element larger than old fill */
1006 str_numset(retstr,(double)i);
1008 safefree((char*)tmpary);
1012 do_kv(hash,kv,sarg,retary)
1015 register STR **sarg;
1018 register ARRAY *ary;
1021 static ARRAY *myarray = Null(ARRAY*);
1022 register HENT *entry;
1026 myarray = ary = anew();
1030 while (entry = hiternext(hash)) {
1033 apush(ary,str_make(hiterkey(entry)));
1035 apush(ary,str_make(str_get(hiterval(entry))));
1037 if (retary) { /* array wanted */
1038 sarg = (STR**)saferealloc((char*)sarg,(max+2)*sizeof(STR*));
1040 sarg[max+1] = Nullstr;
1041 for (i = 1; i <= max; i++)
1042 sarg[i] = afetch(ary,i-1);
1049 do_each(hash,sarg,retary)
1051 register STR **sarg;
1054 static STR *mystr = Nullstr;
1056 HENT *entry = hiternext(hash);
1063 if (retary) { /* array wanted */
1065 sarg = (STR**)saferealloc((char*)sarg,4*sizeof(STR*));
1068 sarg[1] = mystr = str_make(hiterkey(entry));
1069 retstr = sarg[2] = hiterval(entry);
1073 sarg = (STR**)saferealloc((char*)sarg,2*sizeof(STR*));
1075 sarg[1] = retstr = Nullstr;
1080 retstr = hiterval(entry);
1089 #define A(e1,e2,e3) (e1+(e2<<1)+(e3<<2))
1090 opargs[O_ITEM] = A(1,0,0);
1091 opargs[O_ITEM2] = A(0,0,0);
1092 opargs[O_ITEM3] = A(0,0,0);
1093 opargs[O_CONCAT] = A(1,1,0);
1094 opargs[O_MATCH] = A(1,0,0);
1095 opargs[O_NMATCH] = A(1,0,0);
1096 opargs[O_SUBST] = A(1,0,0);
1097 opargs[O_NSUBST] = A(1,0,0);
1098 opargs[O_ASSIGN] = A(1,1,0);
1099 opargs[O_MULTIPLY] = A(1,1,0);
1100 opargs[O_DIVIDE] = A(1,1,0);
1101 opargs[O_MODULO] = A(1,1,0);
1102 opargs[O_ADD] = A(1,1,0);
1103 opargs[O_SUBTRACT] = A(1,1,0);
1104 opargs[O_LEFT_SHIFT] = A(1,1,0);
1105 opargs[O_RIGHT_SHIFT] = A(1,1,0);
1106 opargs[O_LT] = A(1,1,0);
1107 opargs[O_GT] = A(1,1,0);
1108 opargs[O_LE] = A(1,1,0);
1109 opargs[O_GE] = A(1,1,0);
1110 opargs[O_EQ] = A(1,1,0);
1111 opargs[O_NE] = A(1,1,0);
1112 opargs[O_BIT_AND] = A(1,1,0);
1113 opargs[O_XOR] = A(1,1,0);
1114 opargs[O_BIT_OR] = A(1,1,0);
1115 opargs[O_AND] = A(1,0,0); /* don't eval arg 2 (yet) */
1116 opargs[O_OR] = A(1,0,0); /* don't eval arg 2 (yet) */
1117 opargs[O_COND_EXPR] = A(1,0,0); /* don't eval args 2 or 3 */
1118 opargs[O_COMMA] = A(1,1,0);
1119 opargs[O_NEGATE] = A(1,0,0);
1120 opargs[O_NOT] = A(1,0,0);
1121 opargs[O_COMPLEMENT] = A(1,0,0);
1122 opargs[O_WRITE] = A(1,0,0);
1123 opargs[O_OPEN] = A(1,1,0);
1124 opargs[O_TRANS] = A(1,0,0);
1125 opargs[O_NTRANS] = A(1,0,0);
1126 opargs[O_CLOSE] = A(0,0,0);
1127 opargs[O_ARRAY] = A(1,0,0);
1128 opargs[O_HASH] = A(1,0,0);
1129 opargs[O_LARRAY] = A(1,0,0);
1130 opargs[O_LHASH] = A(1,0,0);
1131 opargs[O_PUSH] = A(1,0,0);
1132 opargs[O_POP] = A(0,0,0);
1133 opargs[O_SHIFT] = A(0,0,0);
1134 opargs[O_SPLIT] = A(1,0,0);
1135 opargs[O_LENGTH] = A(1,0,0);
1136 opargs[O_SPRINTF] = A(1,0,0);
1137 opargs[O_SUBSTR] = A(1,1,1);
1138 opargs[O_JOIN] = A(1,0,0);
1139 opargs[O_SLT] = A(1,1,0);
1140 opargs[O_SGT] = A(1,1,0);
1141 opargs[O_SLE] = A(1,1,0);
1142 opargs[O_SGE] = A(1,1,0);
1143 opargs[O_SEQ] = A(1,1,0);
1144 opargs[O_SNE] = A(1,1,0);
1145 opargs[O_SUBR] = A(1,0,0);
1146 opargs[O_PRINT] = A(1,0,0);
1147 opargs[O_CHDIR] = A(1,0,0);
1148 opargs[O_DIE] = A(1,0,0);
1149 opargs[O_EXIT] = A(1,0,0);
1150 opargs[O_RESET] = A(1,0,0);
1151 opargs[O_LIST] = A(0,0,0);
1152 opargs[O_EOF] = A(0,0,0);
1153 opargs[O_TELL] = A(0,0,0);
1154 opargs[O_SEEK] = A(0,1,1);
1155 opargs[O_LAST] = A(1,0,0);
1156 opargs[O_NEXT] = A(1,0,0);
1157 opargs[O_REDO] = A(1,0,0);
1158 opargs[O_GOTO] = A(1,0,0);
1159 opargs[O_INDEX] = A(1,1,0);
1160 opargs[O_TIME] = A(0,0,0);
1161 opargs[O_TMS] = A(0,0,0);
1162 opargs[O_LOCALTIME] = A(1,0,0);
1163 opargs[O_GMTIME] = A(1,0,0);
1164 opargs[O_STAT] = A(1,0,0);
1165 opargs[O_CRYPT] = A(1,1,0);
1166 opargs[O_EXP] = A(1,0,0);
1167 opargs[O_LOG] = A(1,0,0);
1168 opargs[O_SQRT] = A(1,0,0);
1169 opargs[O_INT] = A(1,0,0);
1170 opargs[O_PRTF] = A(1,0,0);
1171 opargs[O_ORD] = A(1,0,0);
1172 opargs[O_SLEEP] = A(1,0,0);
1173 opargs[O_FLIP] = A(1,0,0);
1174 opargs[O_FLOP] = A(0,1,0);
1175 opargs[O_KEYS] = A(0,0,0);
1176 opargs[O_VALUES] = A(0,0,0);
1177 opargs[O_EACH] = A(0,0,0);
1178 opargs[O_CHOP] = A(1,0,0);
1179 opargs[O_FORK] = A(1,0,0);
1180 opargs[O_EXEC] = A(1,0,0);
1181 opargs[O_SYSTEM] = A(1,0,0);
1182 opargs[O_OCT] = A(1,0,0);
1183 opargs[O_HEX] = A(1,0,0);
1184 opargs[O_CHMOD] = A(1,0,0);
1185 opargs[O_CHOWN] = A(1,0,0);
1186 opargs[O_KILL] = A(1,0,0);
1187 opargs[O_RENAME] = A(1,1,0);
1188 opargs[O_UNLINK] = A(1,0,0);
1189 opargs[O_UMASK] = A(1,0,0);
1190 opargs[O_UNSHIFT] = A(1,0,0);
1191 opargs[O_LINK] = A(1,1,0);
1192 opargs[O_REPEAT] = A(1,1,0);
1196 static void (*ihand)();
1197 static void (*qhand)();
1199 static int (*ihand)();
1200 static int (*qhand)();
1206 STR ***retary; /* where to return an array to, null if nowhere */
1210 register int optype;
1211 register int maxarg;
1214 register STR **sarg = quicksarg;
1215 register char *tmps;
1224 bool assigning = FALSE;
1225 double exp(), log(), sqrt(), modf();
1226 char *crypt(), *getenv();
1230 str = arg->arg_ptr.arg_str;
1231 optype = arg->arg_type;
1232 maxarg = arg->arg_len;
1233 if (maxarg > 3 || retary) {
1234 sarg = (STR **)safemalloc((maxarg+2) * sizeof(STR*));
1238 deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg);
1240 debname[dlevel] = opname[optype][0];
1241 debdelim[dlevel++] = ':';
1243 for (anum = 1; anum <= maxarg; anum++) {
1244 argflags = arg[anum].arg_flags;
1245 if (argflags & AF_SPECIAL)
1248 switch (arg[anum].arg_type) {
1250 sarg[anum] = &str_no;
1259 deb("%d.EXPR =>\n",anum);
1262 sarg[anum] = eval(arg[anum].arg_ptr.arg_arg, Null(STR***));
1268 deb("%d.CMD (%lx) =>\n",anum,arg[anum].arg_ptr.arg_cmd);
1271 sarg[anum] = cmd_exec(arg[anum].arg_ptr.arg_cmd);
1274 sarg[anum] = STAB_STR(arg[anum].arg_ptr.arg_stab);
1277 sprintf(buf,"STAB $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
1286 deb("%d.LEXPR =>\n",anum);
1289 str = eval(arg[anum].arg_ptr.arg_arg,Null(STR***));
1291 fatal("panic: A_LEXPR\n");
1296 sprintf(buf,"LVAL $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
1300 str = STAB_STR(arg[anum].arg_ptr.arg_stab);
1302 fatal("panic: A_LVAL\n");
1305 if (argflags & AF_PRE) {
1306 if (argflags & AF_UP)
1312 str = arg->arg_ptr.arg_str;
1314 else if (argflags & AF_POST) {
1315 sarg[anum] = str_static(str);
1316 if (argflags & AF_UP)
1321 str = arg->arg_ptr.arg_str;
1328 sarg[anum] = str_static(&str_no);
1329 str_numset(sarg[anum],
1330 (double)alen(arg[anum].arg_ptr.arg_stab->stab_array));
1336 sarg[anum] = arg[anum].arg_ptr.arg_str;
1342 (void) interp(str,str_get(arg[anum].arg_ptr.arg_str));
1349 tmps = str_get(arg[anum].arg_ptr.arg_str);
1350 fp = popen(str_get(interp(str,tmps)),"r");
1351 tmpstr = str_new(80);
1354 while (str_gets(tmpstr,fp) != Nullch) {
1355 str_scat(str,tmpstr);
1357 statusvalue = pclose(fp);
1370 last_in_stab = arg[anum].arg_ptr.arg_stab;
1371 if (last_in_stab->stab_io) {
1372 fp = last_in_stab->stab_io->fp;
1373 if (!fp && (last_in_stab->stab_io->flags & IOF_ARGV)) {
1374 if (last_in_stab->stab_io->flags & IOF_START) {
1375 last_in_stab->stab_io->flags &= ~IOF_START;
1376 last_in_stab->stab_io->lines = 0;
1377 if (alen(last_in_stab->stab_array) < 0L) {
1378 tmpstr = str_make("-"); /* assume stdin */
1379 apush(last_in_stab->stab_array, tmpstr);
1382 fp = nextargv(last_in_stab);
1383 if (!fp) /* Note: fp != last_in_stab->stab_io->fp */
1384 do_close(last_in_stab,FALSE); /* now it does */
1389 sarg[anum] = &str_no;
1390 else if (!str_gets(str,fp)) {
1391 if (last_in_stab->stab_io->flags & IOF_ARGV) {
1392 fp = nextargv(last_in_stab);
1395 do_close(last_in_stab,FALSE);
1396 last_in_stab->stab_io->flags |= IOF_START;
1401 sarg[anum] = &str_no;
1405 last_in_stab->stab_io->lines++;
1415 deb("%d.%s = '%s'\n",anum,tmps,str_peek(sarg[anum]));
1421 str_sset(str,sarg[1]);
1426 str_sset(str,sarg[2]);
1431 str_sset(str,sarg[3]);
1436 str_sset(str,sarg[1]);
1437 str_scat(str,sarg[2]);
1442 str_sset(str,sarg[1]);
1443 anum = (long)str_gnum(sarg[2]);
1445 tmpstr = str_new(0);
1446 str_sset(tmpstr,str);
1447 for (anum--; anum; anum--)
1448 str_scat(str,tmpstr);
1451 str_sset(str,&str_no);
1455 str_set(str, do_match(str_get(sarg[1]),arg) ? Yes : No);
1459 str_set(str, do_match(str_get(sarg[1]),arg) ? No : Yes);
1463 value = (double) do_subst(str, arg);
1464 str = arg->arg_ptr.arg_str;
1467 str_set(arg->arg_ptr.arg_str, do_subst(str, arg) ? No : Yes);
1468 str = arg->arg_ptr.arg_str;
1471 if (arg[2].arg_flags & AF_SPECIAL)
1475 str_sset(str, sarg[2]);
1480 tmps = str_get(str);
1481 tmps += str->str_cur - (str->str_cur != 0);
1482 str_set(arg->arg_ptr.arg_str,tmps); /* remember last char */
1483 *tmps = '\0'; /* wipe it out */
1484 str->str_cur = tmps - str->str_ptr;
1486 str = arg->arg_ptr.arg_str;
1489 value = str_gnum(sarg[1]);
1490 value *= str_gnum(sarg[2]);
1493 value = str_gnum(sarg[1]);
1494 value /= str_gnum(sarg[2]);
1497 value = str_gnum(sarg[1]);
1498 value = (double)(((long)value) % (long)str_gnum(sarg[2]));
1501 value = str_gnum(sarg[1]);
1502 value += str_gnum(sarg[2]);
1505 value = str_gnum(sarg[1]);
1506 value -= str_gnum(sarg[2]);
1509 value = str_gnum(sarg[1]);
1510 value = (double)(((long)value) << (long)str_gnum(sarg[2]));
1513 value = str_gnum(sarg[1]);
1514 value = (double)(((long)value) >> (long)str_gnum(sarg[2]));
1517 value = str_gnum(sarg[1]);
1518 value = (double)(value < str_gnum(sarg[2]));
1521 value = str_gnum(sarg[1]);
1522 value = (double)(value > str_gnum(sarg[2]));
1525 value = str_gnum(sarg[1]);
1526 value = (double)(value <= str_gnum(sarg[2]));
1529 value = str_gnum(sarg[1]);
1530 value = (double)(value >= str_gnum(sarg[2]));
1533 value = str_gnum(sarg[1]);
1534 value = (double)(value == str_gnum(sarg[2]));
1537 value = str_gnum(sarg[1]);
1538 value = (double)(value != str_gnum(sarg[2]));
1541 value = str_gnum(sarg[1]);
1542 value = (double)(((long)value) & (long)str_gnum(sarg[2]));
1545 value = str_gnum(sarg[1]);
1546 value = (double)(((long)value) ^ (long)str_gnum(sarg[2]));
1549 value = str_gnum(sarg[1]);
1550 value = (double)(((long)value) | (long)str_gnum(sarg[2]));
1553 if (str_true(sarg[1])) {
1557 argflags = arg[anum].arg_flags;
1562 str_sset(str, sarg[1]);
1570 if (str_true(sarg[1])) {
1572 str_set(str, sarg[1]);
1583 argflags = arg[anum].arg_flags;
1587 anum = (str_true(sarg[1]) ? 2 : 3);
1588 optype = (anum == 2 ? O_ITEM2 : O_ITEM3);
1590 argflags = arg[anum].arg_flags;
1596 value = -str_gnum(sarg[1]);
1599 value = (double) !str_true(sarg[1]);
1602 value = (double) ~(long)str_gnum(sarg[1]);
1605 if (arg[1].arg_type == A_LVAL)
1606 defoutstab = arg[1].arg_ptr.arg_stab;
1608 defoutstab = stabent(str_get(sarg[1]),TRUE);
1609 if (!defoutstab->stab_io)
1610 defoutstab->stab_io = stio_new();
1611 curoutstab = defoutstab;
1612 str_set(str,curoutstab->stab_io->fp ? Yes : No);
1618 else if (arg[1].arg_type == A_LVAL)
1619 stab = arg[1].arg_ptr.arg_stab;
1621 stab = stabent(str_get(sarg[1]),TRUE);
1622 if (!stab->stab_io) {
1628 fp = stab->stab_io->fp;
1630 if (stab->stab_io->fmt_stab)
1631 form = stab->stab_io->fmt_stab->stab_form;
1633 form = stab->stab_form;
1639 format(&outrec,form);
1640 do_write(&outrec,stab->stab_io);
1641 if (stab->stab_io->flags & IOF_FLUSH)
1647 if (do_open(arg[1].arg_ptr.arg_stab,str_get(sarg[2]))) {
1649 arg[1].arg_ptr.arg_stab->stab_io->lines = 0;
1656 value = (double) do_trans(str,arg);
1657 str = arg->arg_ptr.arg_str;
1660 str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No);
1661 str = arg->arg_ptr.arg_str;
1665 do_close(arg[1].arg_ptr.arg_stab,TRUE) ? Yes : No );
1669 str_sset(str,do_each(arg[1].arg_ptr.arg_stab->stab_hash,sarg,retary));
1670 retary = Null(STR***); /* do_each already did retary */
1675 value = (double) do_kv(arg[1].arg_ptr.arg_stab->stab_hash,
1676 optype,sarg,retary);
1677 retary = Null(STR***); /* do_keys already did retary */
1681 ary = arg[1].arg_ptr.arg_stab->stab_array;
1682 maxarg = ary->ary_fill;
1683 if (retary) { /* array wanted */
1685 (STR **)saferealloc((char*)sarg,(maxarg+3)*sizeof(STR*));
1686 for (anum = 0; anum <= maxarg; anum++) {
1687 sarg[anum+1] = str = afetch(ary,anum);
1692 str = afetch(ary,maxarg);
1695 str = afetch(arg[2].arg_ptr.arg_stab->stab_array,
1696 ((int)str_gnum(sarg[1])) - arybase);
1701 tmpstab = arg[2].arg_ptr.arg_stab; /* XXX */
1702 str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
1707 anum = ((int)str_gnum(sarg[1])) - arybase;
1708 str = afetch(arg[2].arg_ptr.arg_stab->stab_array,anum);
1709 if (!str || str == &str_no) {
1711 astore(arg[2].arg_ptr.arg_stab->stab_array,anum,str);
1715 tmpstab = arg[2].arg_ptr.arg_stab;
1716 str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
1719 hstore(tmpstab->stab_hash,str_get(sarg[1]),str);
1721 if (tmpstab == envstab) { /* heavy wizardry going on here */
1722 str->str_link.str_magic = tmpstab;/* str is now magic */
1723 envname = savestr(str_get(sarg[1]));
1724 /* he threw the brick up into the air */
1726 else if (tmpstab == sigstab) { /* same thing, only different */
1727 str->str_link.str_magic = tmpstab;
1728 signame = savestr(str_get(sarg[1]));
1732 if (arg[1].arg_flags & AF_SPECIAL)
1733 str = do_push(arg,arg[2].arg_ptr.arg_stab->stab_array);
1735 str = str_new(0); /* must copy the STR */
1736 str_sset(str,sarg[1]);
1737 apush(arg[2].arg_ptr.arg_stab->stab_array,str);
1741 str = apop(arg[1].arg_ptr.arg_stab->stab_array);
1745 *(arg->arg_ptr.arg_str) = *str;
1747 bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
1749 safefree((char*)str);
1750 str = arg->arg_ptr.arg_str;
1753 str = ashift(arg[1].arg_ptr.arg_stab->stab_array);
1757 *(arg->arg_ptr.arg_str) = *str;
1759 bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
1761 safefree((char*)str);
1762 str = arg->arg_ptr.arg_str;
1765 value = (double) do_split(str_get(sarg[1]),arg[2].arg_ptr.arg_spat,retary);
1766 retary = Null(STR***); /* do_split already did retary */
1769 value = (double) str_len(sarg[1]);
1772 sarg[maxarg+1] = Nullstr;
1773 do_sprintf(str,arg->arg_len,sarg);
1776 anum = ((int)str_gnum(sarg[2])) - arybase;
1777 for (tmps = str_get(sarg[1]); *tmps && anum > 0; tmps++,anum--) ;
1778 anum = (int)str_gnum(sarg[3]);
1779 if (anum >= 0 && strlen(tmps) > anum)
1780 str_nset(str, tmps, anum);
1785 if (arg[2].arg_flags & AF_SPECIAL && arg[2].arg_type == A_EXPR)
1786 do_join(arg,str_get(sarg[1]),str);
1788 ajoin(arg[2].arg_ptr.arg_stab->stab_array,str_get(sarg[1]),str);
1791 tmps = str_get(sarg[1]);
1792 value = (double) strLT(tmps,str_get(sarg[2]));
1795 tmps = str_get(sarg[1]);
1796 value = (double) strGT(tmps,str_get(sarg[2]));
1799 tmps = str_get(sarg[1]);
1800 value = (double) strLE(tmps,str_get(sarg[2]));
1803 tmps = str_get(sarg[1]);
1804 value = (double) strGE(tmps,str_get(sarg[2]));
1807 tmps = str_get(sarg[1]);
1808 value = (double) strEQ(tmps,str_get(sarg[2]));
1811 tmps = str_get(sarg[1]);
1812 value = (double) strNE(tmps,str_get(sarg[2]));
1815 str_sset(str,do_subr(arg,sarg));
1823 stab = arg[2].arg_ptr.arg_stab;
1829 else if (arg[1].arg_flags & AF_SPECIAL)
1830 value = (double)do_aprint(arg,stab->stab_io->fp);
1832 value = (double)do_print(str_get(sarg[1]),stab->stab_io->fp);
1833 if (ors && optype == O_PRINT)
1834 do_print(ors, stab->stab_io->fp);
1836 if (stab->stab_io->flags & IOF_FLUSH)
1837 fflush(stab->stab_io->fp);
1840 tmps = str_get(sarg[1]);
1841 if (!tmps || !*tmps)
1842 tmps = getenv("HOME");
1843 if (!tmps || !*tmps)
1844 tmps = getenv("LOGDIR");
1845 value = (double)(chdir(tmps) >= 0);
1848 tmps = str_get(sarg[1]);
1849 if (!tmps || !*tmps)
1851 fatal("%s\n",str_get(sarg[1]));
1855 exit((int)str_gnum(sarg[1]));
1859 str_reset(str_get(sarg[1]));
1864 str = sarg[maxarg]; /* unwanted list, return last item */
1869 str_set(str, do_eof(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab) ? Yes : No);
1873 value = (double)do_tell(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab);
1877 value = str_gnum(sarg[2]);
1878 str_set(str, do_seek(arg[1].arg_ptr.arg_stab,
1879 (long)value, (int)str_gnum(sarg[3]) ) ? Yes : No);
1886 tmps = str_get(sarg[1]);
1887 while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label ||
1888 strNE(tmps,loop_stack[loop_ptr].loop_label) )) {
1891 deb("(Skipping label #%d %s)\n",loop_ptr,
1892 loop_stack[loop_ptr].loop_label);
1899 deb("(Found label #%d %s)\n",loop_ptr,
1900 loop_stack[loop_ptr].loop_label);
1905 fatal("Bad label: %s\n", maxarg > 0 ? tmps : "<null>");
1906 longjmp(loop_stack[loop_ptr].loop_env, optype);
1907 case O_GOTO:/* shudder */
1908 goto_targ = str_get(sarg[1]);
1909 longjmp(top_env, 1);
1911 tmps = str_get(sarg[1]);
1912 if (!(tmps2 = instr(tmps,str_get(sarg[2]))))
1913 value = (double)(-1 + arybase);
1915 value = (double)(tmps2 - tmps + arybase);
1918 value = (double) time(0);
1921 value = (double) do_tms(retary);
1922 retary = Null(STR***); /* do_tms already did retary */
1925 tmplong = (long) str_gnum(sarg[1]);
1926 value = (double) do_time(localtime(&tmplong),retary);
1927 retary = Null(STR***); /* do_localtime already did retary */
1930 tmplong = (long) str_gnum(sarg[1]);
1931 value = (double) do_time(gmtime(&tmplong),retary);
1932 retary = Null(STR***); /* do_gmtime already did retary */
1935 value = (double) do_stat(arg,sarg,retary);
1936 retary = Null(STR***); /* do_stat already did retary */
1939 tmps = str_get(sarg[1]);
1940 str_set(str,crypt(tmps,str_get(sarg[2])));
1943 value = exp(str_gnum(sarg[1]));
1946 value = log(str_gnum(sarg[1]));
1949 value = sqrt(str_gnum(sarg[1]));
1952 modf(str_gnum(sarg[1]),&value);
1955 value = (double) *str_get(sarg[1]);
1958 tmps = str_get(sarg[1]);
1960 if (!tmps || !*tmps)
1961 sleep((32767<<16)+32767);
1964 value = (double)tmplong;
1966 value = ((double)tmplong) - value;
1969 if (str_true(sarg[1])) {
1970 str_numset(str,0.0);
1972 arg->arg_type = optype = O_FLOP;
1974 arg[2].arg_flags &= ~AF_SPECIAL;
1975 arg[1].arg_flags |= AF_SPECIAL;
1976 argflags = arg[anum].arg_flags;
1983 if (str_true(sarg[2])) {
1984 arg->arg_type = O_FLIP;
1985 arg[1].arg_flags &= ~AF_SPECIAL;
1986 arg[2].arg_flags |= AF_SPECIAL;
1991 value = (double)fork();
1994 if (anum = vfork()) {
1995 ihand = signal(SIGINT, SIG_IGN);
1996 qhand = signal(SIGQUIT, SIG_IGN);
1997 while ((maxarg = wait(&argflags)) != anum && maxarg != -1)
2001 signal(SIGINT, ihand);
2002 signal(SIGQUIT, qhand);
2003 value = (double)argflags;
2008 if (arg[1].arg_flags & AF_SPECIAL)
2009 value = (double)do_aexec(arg);
2011 value = (double)do_exec(str_get(sarg[1]));
2023 tmps = str_get(sarg[1]);
2032 case '0': case '1': case '2': case '3': case '4':
2033 case '5': case '6': case '7':
2035 anum += *tmps++ & 15;
2037 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
2038 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
2042 anum += (*tmps++ & 7) + 9;
2051 value = (double)anum;
2057 if (arg[1].arg_flags & AF_SPECIAL)
2058 value = (double)apply(optype,arg,Null(STR**));
2061 value = (double)apply(optype,arg,sarg);
2065 value = (double)umask((int)str_gnum(sarg[1]));
2068 tmps = str_get(sarg[1]);
2070 value = (double)(rename(tmps,str_get(sarg[2])) >= 0);
2072 tmps2 = str_get(sarg[2]);
2074 if (!(anum = link(tmps,tmps2)))
2075 anum = UNLINK(tmps);
2076 value = (double)(anum >= 0);
2080 tmps = str_get(sarg[1]);
2081 value = (double)(link(tmps,str_get(sarg[2])) >= 0);
2084 ary = arg[2].arg_ptr.arg_stab->stab_array;
2085 if (arg[1].arg_flags & AF_SPECIAL)
2086 do_unshift(arg,ary);
2088 str = str_new(0); /* must copy the STR */
2089 str_sset(str,sarg[1]);
2093 value = (double)(ary->ary_fill + 1);
2099 deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str));
2104 str_numset(str,value);
2109 deb("%s RETURNS \"%f\"\n",opname[optype],value);
2113 if (sarg != quicksarg) {
2115 if (optype == O_LIST)
2119 sarg[maxarg+1] = Nullstr;
2120 *retary = sarg; /* up to them to free it */
2132 deb("%s RETURNS ()\n",opname[optype],value);