1 /* $Header: arg.c,v 1.0.1.6 88/02/01 17:32:26 root Exp $
4 * Revision 1.0.1.6 88/02/01 17:32:26 root
5 * patch12: made split(' ') behave like awk in ignoring leading white space.
7 * Revision 1.0.1.5 88/01/30 08:53:16 root
8 * patch9: fixed some missing right parens introduced (?) by patch 2
10 * Revision 1.0.1.4 88/01/28 10:22:06 root
11 * patch8: added eval operator.
13 * Revision 1.0.1.2 88/01/24 03:52:34 root
14 * patch 2: added STATBLKS dependencies.
16 * Revision 1.0.1.1 88/01/21 21:27:10 root
17 * Now defines signal return values correctly using VOIDSIG.
19 * Revision 1.0 87/12/18 13:04:33 root
38 register SPAT *spat = arg[2].arg_ptr.arg_spat;
43 fatal("panic: do_match\n");
44 if (spat->spat_flags & SPAT_USED) {
51 if (spat->spat_runtime) {
52 t = str_get(eval(spat->spat_runtime,Null(STR***)));
55 deb("2.SPAT /%s/\n",t);
57 if (d = compile(&spat->spat_compex,t,TRUE,FALSE)) {
59 deb("/%s/: %s\n", t, d);
63 if (spat->spat_compex.complen <= 1 && curspat)
65 if (execute(&spat->spat_compex, s, TRUE, 0)) {
66 if (spat->spat_compex.numsubs)
78 if (spat->spat_flags & SPAT_USE_ONCE)
82 deb("2.SPAT %c%s%c\n",ch,spat->spat_compex.precomp,ch);
85 if (spat->spat_compex.complen <= 1 && curspat)
87 if (spat->spat_first) {
88 if (spat->spat_flags & SPAT_SCANFIRST) {
89 str_free(spat->spat_first);
90 spat->spat_first = Nullstr; /* disable optimization */
92 else if (*spat->spat_first->str_ptr != *s ||
93 strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
96 if (execute(&spat->spat_compex, s, TRUE, 0)) {
97 if (spat->spat_compex.numsubs)
99 if (spat->spat_flags & SPAT_USE_ONCE)
100 spat->spat_flags |= SPAT_USED;
119 spat = arg[2].arg_ptr.arg_spat;
122 fatal("panic: do_subst\n");
123 else if (spat->spat_runtime) {
126 m = str_get(eval(spat->spat_runtime,Null(STR***)));
127 if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
129 deb("/%s/: %s\n", m, d);
136 deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
139 if (spat->spat_compex.complen <= 1 && curspat)
141 if (spat->spat_first) {
142 if (spat->spat_flags & SPAT_SCANFIRST) {
143 str_free(spat->spat_first);
144 spat->spat_first = Nullstr; /* disable optimization */
146 else if (*spat->spat_first->str_ptr != *s ||
147 strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
150 if (m = execute(&spat->spat_compex, s, TRUE, 1)) {
153 dstr = str_new(str_len(str));
154 if (spat->spat_compex.numsubs)
158 fatal("Substitution loop?\n");
159 if (spat->spat_compex.numsubs)
160 s = spat->spat_compex.subbase;
161 str_ncat(dstr,s,m-s);
162 s = spat->spat_compex.subend[0];
163 str_scat(dstr,eval(spat->spat_repl,Null(STR***)));
164 if (spat->spat_flags & SPAT_USE_ONCE)
166 } while (m = execute(&spat->spat_compex, s, FALSE, 1));
168 str_replace(str,dstr);
182 register int matches = 0;
185 tbl = arg[2].arg_ptr.arg_cval;
188 fatal("panic: do_trans\n");
195 if (ch = tbl[*s & 0377]) {
206 do_split(s,spat,retary)
214 static ARRAY *myarray = Null(ARRAY*);
221 fatal("panic: do_split\n");
222 else if (spat->spat_runtime) {
225 m = str_get(eval(spat->spat_runtime,Null(STR***)));
226 if (!*m || (*m == ' ' && !m[1])) {
228 while (isspace(*s)) s++;
230 if (spat->spat_runtime->arg_type == O_ITEM &&
231 spat->spat_runtime[1].arg_type == A_SINGLE) {
232 arg_free(spat->spat_runtime); /* it won't change, so */
233 spat->spat_runtime = Nullarg; /* no point compiling again */
235 if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
237 deb("/%s/: %s\n", m, d);
244 deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
250 ary = spat->spat_repl[1].arg_ptr.arg_stab->stab_array;
252 myarray = ary = anew();
254 while (*s && (m = execute(&spat->spat_compex, s, (iters == 0), 1))) {
255 if (spat->spat_compex.numsubs)
256 s = spat->spat_compex.subbase;
258 str_nset(dstr,s,m-s);
259 astore(ary, iters++, dstr);
261 fatal("Substitution loop?\n");
262 s = spat->spat_compex.subend[0];
264 if (*s) { /* ignore field after final "whitespace" */
265 dstr = str_new(0); /* if they interpolate, it's null anyway */
267 astore(ary, iters++, dstr);
270 while (iters > 0 && !*str_get(afetch(ary,iters-1)))
274 sarg = (STR**)safemalloc((iters+2)*sizeof(STR*));
277 sarg[iters+1] = Nullstr;
278 for (i = 1; i <= iters; i++)
279 sarg[i] = afetch(ary,i-1);
286 do_join(arg,delim,str)
288 register char *delim;
291 STR **tmpary; /* must not be register */
294 (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
297 str_sset(str,*elem++);
298 for (; *elem; elem++) {
303 safefree((char*)tmpary);
312 int len = strlen(name);
313 register STIO *stio = stab->stab_io;
315 while (len && isspace(name[len-1]))
318 stio = stab->stab_io = stio_new();
320 if (stio->type == '|')
322 else if (stio->type != '-')
328 for (name++; isspace(*name); name++) ;
329 fp = popen(name,"w");
331 else if (*name == '>' && name[1] == '>') {
332 for (name += 2; isspace(*name); name++) ;
333 fp = fopen(name,"a");
335 else if (*name == '>') {
336 for (name++; isspace(*name); name++) ;
337 if (strEQ(name,"-")) {
342 fp = fopen(name,"w");
346 for (name++; isspace(*name); name++) ;
347 if (strEQ(name,"-")) {
352 fp = fopen(name,"r");
354 else if (name[len-1] == '|') {
356 while (len && isspace(name[len-1]))
358 for (; isspace(*name); name++) ;
359 fp = popen(name,"r");
364 for (; isspace(*name); name++) ;
365 if (strEQ(name,"-")) {
370 fp = fopen(name,"r");
375 if (stio->type != '|' && stio->type != '-') {
376 if (fstat(fileno(fp),&statbuf) < 0) {
380 if ((statbuf.st_mode & S_IFMT) != S_IFREG &&
381 (statbuf.st_mode & S_IFMT) != S_IFCHR) {
397 while (alen(stab->stab_array) >= 0L) {
398 str = ashift(stab->stab_array);
399 str_sset(stab->stab_val,str);
400 STABSET(stab->stab_val);
401 oldname = str_get(stab->stab_val);
402 if (do_open(stab,oldname)) {
405 str_cat(str,inplace);
407 rename(oldname,str->str_ptr);
409 UNLINK(str->str_ptr);
410 link(oldname,str->str_ptr);
414 sprintf(tokenbuf,">%s",oldname);
415 do_open(argvoutstab,tokenbuf);
416 defoutstab = argvoutstab;
419 return stab->stab_io->fp;
422 fprintf(stderr,"Can't open %s\n",str_get(str));
426 do_close(argvoutstab,FALSE);
427 defoutstab = stabent("stdout",TRUE);
433 do_close(stab,explicit)
438 register STIO *stio = stab->stab_io;
440 if (!stio) /* never opened */
443 if (stio->type == '|')
444 retval = (pclose(stio->fp) >= 0);
445 else if (stio->type == '-')
448 retval = (fclose(stio->fp) != EOF);
467 stio = stab->stab_io;
473 #ifdef STDSTDIO /* (the code works without this) */
474 if (stio->fp->_cnt) /* cheat a little, since */
475 return FALSE; /* this is the most usual case */
480 ungetc(ch, stio->fp);
483 if (stio->flags & IOF_ARGV) { /* not necessarily a real EOF yet? */
484 if (!nextargv(stab)) /* get another fp handy */
488 return TRUE; /* normal fp, definitely end of file */
503 stio = stab->stab_io;
504 if (!stio || !stio->fp)
507 return ftell(stio->fp);
511 do_seek(stab, pos, whence)
521 stio = stab->stab_io;
522 if (!stio || !stio->fp)
525 return fseek(stio->fp, pos, whence) >= 0;
528 do_stat(arg,sarg,retary)
534 static ARRAY *myarray = Null(ARRAY*);
540 myarray = ary = anew();
542 if (arg[1].arg_type == A_LVAL) {
543 tmpstab = arg[1].arg_ptr.arg_stab;
544 if (!tmpstab->stab_io ||
545 fstat(fileno(tmpstab->stab_io->fp),&statbuf) < 0) {
550 if (stat(str_get(sarg[1]),&statbuf) < 0)
555 apush(ary,str_nmake((double)statbuf.st_dev));
556 apush(ary,str_nmake((double)statbuf.st_ino));
557 apush(ary,str_nmake((double)statbuf.st_mode));
558 apush(ary,str_nmake((double)statbuf.st_nlink));
559 apush(ary,str_nmake((double)statbuf.st_uid));
560 apush(ary,str_nmake((double)statbuf.st_gid));
561 apush(ary,str_nmake((double)statbuf.st_rdev));
562 apush(ary,str_nmake((double)statbuf.st_size));
563 apush(ary,str_nmake((double)statbuf.st_atime));
564 apush(ary,str_nmake((double)statbuf.st_mtime));
565 apush(ary,str_nmake((double)statbuf.st_ctime));
567 apush(ary,str_nmake((double)statbuf.st_blksize));
568 apush(ary,str_nmake((double)statbuf.st_blocks));
570 apush(ary,str_make(""));
571 apush(ary,str_make(""));
574 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
576 sarg[max+1] = Nullstr;
577 for (i = 1; i <= max; i++)
578 sarg[i] = afetch(ary,i-1);
588 static ARRAY *myarray = Null(ARRAY*);
595 myarray = ary = anew();
597 if (times(×buf) < 0)
602 apush(ary,str_nmake(((double)timesbuf.tms_utime)/60.0));
603 apush(ary,str_nmake(((double)timesbuf.tms_stime)/60.0));
604 apush(ary,str_nmake(((double)timesbuf.tms_cutime)/60.0));
605 apush(ary,str_nmake(((double)timesbuf.tms_cstime)/60.0));
607 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
609 sarg[max+1] = Nullstr;
610 for (i = 1; i <= max; i++)
611 sarg[i] = afetch(ary,i-1);
617 do_time(tmbuf,retary)
622 static ARRAY *myarray = Null(ARRAY*);
630 myarray = ary = anew();
637 apush(ary,str_nmake((double)tmbuf->tm_sec));
638 apush(ary,str_nmake((double)tmbuf->tm_min));
639 apush(ary,str_nmake((double)tmbuf->tm_hour));
640 apush(ary,str_nmake((double)tmbuf->tm_mday));
641 apush(ary,str_nmake((double)tmbuf->tm_mon));
642 apush(ary,str_nmake((double)tmbuf->tm_year));
643 apush(ary,str_nmake((double)tmbuf->tm_wday));
644 apush(ary,str_nmake((double)tmbuf->tm_yday));
645 apush(ary,str_nmake((double)tmbuf->tm_isdst));
647 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
649 sarg[max+1] = Nullstr;
650 for (i = 1; i <= max; i++)
651 sarg[i] = afetch(ary,i-1);
658 do_sprintf(str,len,sarg)
667 static STR *sargnull = &str_no;
670 len--; /* don't count pattern string */
672 for (s = str_get(*(sarg++)); *s; len--) {
673 if (len <= 0 || !*sarg) {
678 for (t = s; *t && *t != '%'; t++) ;
680 break; /* not enough % patterns, oh well */
681 for (t++; *sarg && *t && t != s; t++) {
695 case 'D': case 'X': case 'O':
698 case 'd': case 'x': case 'o': case 'c':
702 sprintf(buf,s,(long)str_gnum(*(sarg++)));
704 sprintf(buf,s,(int)str_gnum(*(sarg++)));
708 case 'E': case 'e': case 'f': case 'G': case 'g':
711 sprintf(buf,s,str_gnum(*(sarg++)));
718 sprintf(buf,s,str_get(*(sarg++)));
747 STR **tmpary; /* must not be register */
749 register bool retval;
752 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
753 if (arg->arg_type == O_PRTF) {
754 do_sprintf(arg->arg_ptr.arg_str,32767,tmpary);
755 retval = do_print(str_get(arg->arg_ptr.arg_str),fp);
759 for (elem = tmpary+1; *elem; elem++) {
763 if ((*elem)->str_nok || str_gnum(*elem) != 0.0)
764 fprintf(fp, ofmt, str_gnum(*elem));
768 retval = do_print(str_get(*elem), fp);
773 retval = do_print(ors, fp);
775 safefree((char*)tmpary);
783 STR **tmpary; /* must not be register */
789 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
791 for (elem = tmpary+1; *elem; elem++)
794 argv = (char**)safemalloc((i+1)*sizeof(char*));
796 for (elem = tmpary+1; *elem; elem++) {
797 *a++ = str_get(*elem);
800 execvp(argv[0],argv);
801 safefree((char*)argv);
803 safefree((char*)tmpary);
811 STR **tmpary; /* must not be register */
816 /* see if there are shell metacharacters in it */
818 for (s = cmd; *s; s++) {
819 if (*s != ' ' && !isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`",*s)) {
820 execl("/bin/sh","sh","-c",cmd,0);
824 argv = (char**)safemalloc(((s - cmd) / 2 + 2)*sizeof(char*));
828 while (isspace(*s)) s++;
831 while (*s && !isspace(*s)) s++;
837 execvp(argv[0],argv);
838 safefree((char*)argv);
847 STR **tmpary; /* must not be register */
849 register STR *str = &str_no;
851 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
852 for (elem = tmpary+1; *elem; elem++) {
857 safefree((char*)tmpary);
865 STR **tmpary; /* must not be register */
867 register STR *str = &str_no;
870 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
872 for (elem = tmpary+1; *elem; elem++)
876 for (elem = tmpary+1; *elem; elem++) {
881 safefree((char*)tmpary);
889 STR **tmpary; /* must not be register */
898 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
900 for (elem = tmpary+1; *elem; elem++)
905 val = (int)str_gnum(tmpary[1]);
906 for (elem = tmpary+2; *elem; elem++)
907 if (chmod(str_get(*elem),val))
914 val = (int)str_gnum(tmpary[1]);
915 val2 = (int)str_gnum(tmpary[2]);
916 for (elem = tmpary+3; *elem; elem++)
917 if (chown(str_get(*elem),val,val2))
925 val = (int)str_gnum(tmpary[1]);
928 for (elem = tmpary+2; *elem; elem++)
929 if (kill(atoi(str_get(*elem)),val))
934 for (elem = tmpary+1; *elem; elem++)
935 if (UNLINK(str_get(*elem)))
940 safefree((char*)tmpary);
947 register char **sarg;
952 savearray = defstab->stab_array;
953 defstab->stab_array = anew();
954 if (arg[1].arg_flags & AF_SPECIAL)
955 (void)do_push(arg,defstab->stab_array);
956 else if (arg[1].arg_type != A_NULL) {
958 str_sset(str,sarg[1]);
959 apush(defstab->stab_array,str);
961 str = cmd_exec(arg[2].arg_ptr.arg_stab->stab_sub);
962 afree(defstab->stab_array); /* put back old $_[] */
963 defstab->stab_array = savearray;
968 do_assign(retstr,arg)
972 STR **tmpary; /* must not be register */
973 register ARG *larg = arg[1].arg_ptr.arg_arg;
981 (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
983 if (arg->arg_flags & AF_COMMON) {
985 for (elem=tmpary+2; *elem; elem++) {
986 *elem = str_static(*elem);
990 if (larg->arg_type == O_LIST) {
991 lasti = larg->arg_len;
992 for (i=1,elem=tmpary+1; i <= lasti; i++) {
994 s = str_get(*(elem++));
997 switch (larg[i].arg_type) {
1000 str = STAB_STR(larg[i].arg_ptr.arg_stab);
1003 str = eval(larg[i].arg_ptr.arg_arg,Null(STR***));
1009 i = elem - tmpary - 1;
1011 else { /* should be an array name */
1012 ary = larg[1].arg_ptr.arg_stab->stab_array;
1013 for (i=0,elem=tmpary+1; *elem; i++) {
1016 str_sset(str,*(elem++));
1019 ary->ary_fill = i - 1; /* they can get the extra ones back by */
1020 } /* setting an element larger than old fill */
1021 str_numset(retstr,(double)i);
1023 safefree((char*)tmpary);
1027 do_kv(hash,kv,sarg,retary)
1030 register STR **sarg;
1033 register ARRAY *ary;
1036 static ARRAY *myarray = Null(ARRAY*);
1037 register HENT *entry;
1041 myarray = ary = anew();
1045 while (entry = hiternext(hash)) {
1048 apush(ary,str_make(hiterkey(entry)));
1050 apush(ary,str_make(str_get(hiterval(entry))));
1052 if (retary) { /* array wanted */
1053 sarg = (STR**)saferealloc((char*)sarg,(max+2)*sizeof(STR*));
1055 sarg[max+1] = Nullstr;
1056 for (i = 1; i <= max; i++)
1057 sarg[i] = afetch(ary,i-1);
1064 do_each(hash,sarg,retary)
1066 register STR **sarg;
1069 static STR *mystr = Nullstr;
1071 HENT *entry = hiternext(hash);
1078 if (retary) { /* array wanted */
1080 sarg = (STR**)saferealloc((char*)sarg,4*sizeof(STR*));
1083 sarg[1] = mystr = str_make(hiterkey(entry));
1084 retstr = sarg[2] = hiterval(entry);
1088 sarg = (STR**)saferealloc((char*)sarg,2*sizeof(STR*));
1090 sarg[1] = retstr = Nullstr;
1095 retstr = hiterval(entry);
1104 #define A(e1,e2,e3) (e1+(e2<<1)+(e3<<2))
1105 opargs[O_ITEM] = A(1,0,0);
1106 opargs[O_ITEM2] = A(0,0,0);
1107 opargs[O_ITEM3] = A(0,0,0);
1108 opargs[O_CONCAT] = A(1,1,0);
1109 opargs[O_MATCH] = A(1,0,0);
1110 opargs[O_NMATCH] = A(1,0,0);
1111 opargs[O_SUBST] = A(1,0,0);
1112 opargs[O_NSUBST] = A(1,0,0);
1113 opargs[O_ASSIGN] = A(1,1,0);
1114 opargs[O_MULTIPLY] = A(1,1,0);
1115 opargs[O_DIVIDE] = A(1,1,0);
1116 opargs[O_MODULO] = A(1,1,0);
1117 opargs[O_ADD] = A(1,1,0);
1118 opargs[O_SUBTRACT] = A(1,1,0);
1119 opargs[O_LEFT_SHIFT] = A(1,1,0);
1120 opargs[O_RIGHT_SHIFT] = A(1,1,0);
1121 opargs[O_LT] = A(1,1,0);
1122 opargs[O_GT] = A(1,1,0);
1123 opargs[O_LE] = A(1,1,0);
1124 opargs[O_GE] = A(1,1,0);
1125 opargs[O_EQ] = A(1,1,0);
1126 opargs[O_NE] = A(1,1,0);
1127 opargs[O_BIT_AND] = A(1,1,0);
1128 opargs[O_XOR] = A(1,1,0);
1129 opargs[O_BIT_OR] = A(1,1,0);
1130 opargs[O_AND] = A(1,0,0); /* don't eval arg 2 (yet) */
1131 opargs[O_OR] = A(1,0,0); /* don't eval arg 2 (yet) */
1132 opargs[O_COND_EXPR] = A(1,0,0); /* don't eval args 2 or 3 */
1133 opargs[O_COMMA] = A(1,1,0);
1134 opargs[O_NEGATE] = A(1,0,0);
1135 opargs[O_NOT] = A(1,0,0);
1136 opargs[O_COMPLEMENT] = A(1,0,0);
1137 opargs[O_WRITE] = A(1,0,0);
1138 opargs[O_OPEN] = A(1,1,0);
1139 opargs[O_TRANS] = A(1,0,0);
1140 opargs[O_NTRANS] = A(1,0,0);
1141 opargs[O_CLOSE] = A(0,0,0);
1142 opargs[O_ARRAY] = A(1,0,0);
1143 opargs[O_HASH] = A(1,0,0);
1144 opargs[O_LARRAY] = A(1,0,0);
1145 opargs[O_LHASH] = A(1,0,0);
1146 opargs[O_PUSH] = A(1,0,0);
1147 opargs[O_POP] = A(0,0,0);
1148 opargs[O_SHIFT] = A(0,0,0);
1149 opargs[O_SPLIT] = A(1,0,0);
1150 opargs[O_LENGTH] = A(1,0,0);
1151 opargs[O_SPRINTF] = A(1,0,0);
1152 opargs[O_SUBSTR] = A(1,1,1);
1153 opargs[O_JOIN] = A(1,0,0);
1154 opargs[O_SLT] = A(1,1,0);
1155 opargs[O_SGT] = A(1,1,0);
1156 opargs[O_SLE] = A(1,1,0);
1157 opargs[O_SGE] = A(1,1,0);
1158 opargs[O_SEQ] = A(1,1,0);
1159 opargs[O_SNE] = A(1,1,0);
1160 opargs[O_SUBR] = A(1,0,0);
1161 opargs[O_PRINT] = A(1,0,0);
1162 opargs[O_CHDIR] = A(1,0,0);
1163 opargs[O_DIE] = A(1,0,0);
1164 opargs[O_EXIT] = A(1,0,0);
1165 opargs[O_RESET] = A(1,0,0);
1166 opargs[O_LIST] = A(0,0,0);
1167 opargs[O_EOF] = A(0,0,0);
1168 opargs[O_TELL] = A(0,0,0);
1169 opargs[O_SEEK] = A(0,1,1);
1170 opargs[O_LAST] = A(1,0,0);
1171 opargs[O_NEXT] = A(1,0,0);
1172 opargs[O_REDO] = A(1,0,0);
1173 opargs[O_GOTO] = A(1,0,0);
1174 opargs[O_INDEX] = A(1,1,0);
1175 opargs[O_TIME] = A(0,0,0);
1176 opargs[O_TMS] = A(0,0,0);
1177 opargs[O_LOCALTIME] = A(1,0,0);
1178 opargs[O_GMTIME] = A(1,0,0);
1179 opargs[O_STAT] = A(1,0,0);
1180 opargs[O_CRYPT] = A(1,1,0);
1181 opargs[O_EXP] = A(1,0,0);
1182 opargs[O_LOG] = A(1,0,0);
1183 opargs[O_SQRT] = A(1,0,0);
1184 opargs[O_INT] = A(1,0,0);
1185 opargs[O_PRTF] = A(1,0,0);
1186 opargs[O_ORD] = A(1,0,0);
1187 opargs[O_SLEEP] = A(1,0,0);
1188 opargs[O_FLIP] = A(1,0,0);
1189 opargs[O_FLOP] = A(0,1,0);
1190 opargs[O_KEYS] = A(0,0,0);
1191 opargs[O_VALUES] = A(0,0,0);
1192 opargs[O_EACH] = A(0,0,0);
1193 opargs[O_CHOP] = A(1,0,0);
1194 opargs[O_FORK] = A(1,0,0);
1195 opargs[O_EXEC] = A(1,0,0);
1196 opargs[O_SYSTEM] = A(1,0,0);
1197 opargs[O_OCT] = A(1,0,0);
1198 opargs[O_HEX] = A(1,0,0);
1199 opargs[O_CHMOD] = A(1,0,0);
1200 opargs[O_CHOWN] = A(1,0,0);
1201 opargs[O_KILL] = A(1,0,0);
1202 opargs[O_RENAME] = A(1,1,0);
1203 opargs[O_UNLINK] = A(1,0,0);
1204 opargs[O_UMASK] = A(1,0,0);
1205 opargs[O_UNSHIFT] = A(1,0,0);
1206 opargs[O_LINK] = A(1,1,0);
1207 opargs[O_REPEAT] = A(1,1,0);
1208 opargs[O_EVAL] = A(1,0,0);
1212 static void (*ihand)();
1213 static void (*qhand)();
1215 static int (*ihand)();
1216 static int (*qhand)();
1222 STR ***retary; /* where to return an array to, null if nowhere */
1226 register int optype;
1227 register int maxarg;
1230 register STR **sarg = quicksarg;
1231 register char *tmps;
1240 bool assigning = FALSE;
1241 double exp(), log(), sqrt(), modf();
1242 char *crypt(), *getenv();
1246 str = arg->arg_ptr.arg_str;
1247 optype = arg->arg_type;
1248 maxarg = arg->arg_len;
1249 if (maxarg > 3 || retary) {
1250 sarg = (STR **)safemalloc((maxarg+2) * sizeof(STR*));
1254 deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg);
1256 debname[dlevel] = opname[optype][0];
1257 debdelim[dlevel++] = ':';
1259 for (anum = 1; anum <= maxarg; anum++) {
1260 argflags = arg[anum].arg_flags;
1261 if (argflags & AF_SPECIAL)
1264 switch (arg[anum].arg_type) {
1266 sarg[anum] = &str_no;
1275 deb("%d.EXPR =>\n",anum);
1278 sarg[anum] = eval(arg[anum].arg_ptr.arg_arg, Null(STR***));
1284 deb("%d.CMD (%lx) =>\n",anum,arg[anum].arg_ptr.arg_cmd);
1287 sarg[anum] = cmd_exec(arg[anum].arg_ptr.arg_cmd);
1290 sarg[anum] = STAB_STR(arg[anum].arg_ptr.arg_stab);
1293 sprintf(buf,"STAB $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
1302 deb("%d.LEXPR =>\n",anum);
1305 str = eval(arg[anum].arg_ptr.arg_arg,Null(STR***));
1307 fatal("panic: A_LEXPR\n");
1312 sprintf(buf,"LVAL $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
1316 str = STAB_STR(arg[anum].arg_ptr.arg_stab);
1318 fatal("panic: A_LVAL\n");
1321 if (argflags & AF_PRE) {
1322 if (argflags & AF_UP)
1328 str = arg->arg_ptr.arg_str;
1330 else if (argflags & AF_POST) {
1331 sarg[anum] = str_static(str);
1332 if (argflags & AF_UP)
1337 str = arg->arg_ptr.arg_str;
1344 sarg[anum] = str_static(&str_no);
1345 str_numset(sarg[anum],
1346 (double)alen(arg[anum].arg_ptr.arg_stab->stab_array));
1352 sarg[anum] = arg[anum].arg_ptr.arg_str;
1358 (void) interp(str,str_get(arg[anum].arg_ptr.arg_str));
1365 tmps = str_get(arg[anum].arg_ptr.arg_str);
1366 fp = popen(str_get(interp(str,tmps)),"r");
1367 tmpstr = str_new(80);
1370 while (str_gets(tmpstr,fp) != Nullch) {
1371 str_scat(str,tmpstr);
1373 statusvalue = pclose(fp);
1386 last_in_stab = arg[anum].arg_ptr.arg_stab;
1387 if (last_in_stab->stab_io) {
1388 fp = last_in_stab->stab_io->fp;
1389 if (!fp && (last_in_stab->stab_io->flags & IOF_ARGV)) {
1390 if (last_in_stab->stab_io->flags & IOF_START) {
1391 last_in_stab->stab_io->flags &= ~IOF_START;
1392 last_in_stab->stab_io->lines = 0;
1393 if (alen(last_in_stab->stab_array) < 0L) {
1394 tmpstr = str_make("-"); /* assume stdin */
1395 apush(last_in_stab->stab_array, tmpstr);
1398 fp = nextargv(last_in_stab);
1399 if (!fp) /* Note: fp != last_in_stab->stab_io->fp */
1400 do_close(last_in_stab,FALSE); /* now it does */
1405 sarg[anum] = &str_no;
1406 else if (!str_gets(str,fp)) {
1407 if (last_in_stab->stab_io->flags & IOF_ARGV) {
1408 fp = nextargv(last_in_stab);
1411 do_close(last_in_stab,FALSE);
1412 last_in_stab->stab_io->flags |= IOF_START;
1417 sarg[anum] = &str_no;
1421 last_in_stab->stab_io->lines++;
1431 deb("%d.%s = '%s'\n",anum,tmps,str_peek(sarg[anum]));
1437 str_sset(str,sarg[1]);
1442 str_sset(str,sarg[2]);
1447 str_sset(str,sarg[3]);
1452 str_sset(str,sarg[1]);
1453 str_scat(str,sarg[2]);
1458 str_sset(str,sarg[1]);
1459 anum = (long)str_gnum(sarg[2]);
1461 tmpstr = str_new(0);
1462 str_sset(tmpstr,str);
1463 for (anum--; anum; anum--)
1464 str_scat(str,tmpstr);
1467 str_sset(str,&str_no);
1471 str_set(str, do_match(str_get(sarg[1]),arg) ? Yes : No);
1475 str_set(str, do_match(str_get(sarg[1]),arg) ? No : Yes);
1479 value = (double) do_subst(str, arg);
1480 str = arg->arg_ptr.arg_str;
1483 str_set(arg->arg_ptr.arg_str, do_subst(str, arg) ? No : Yes);
1484 str = arg->arg_ptr.arg_str;
1487 if (arg[2].arg_flags & AF_SPECIAL)
1491 str_sset(str, sarg[2]);
1496 tmps = str_get(str);
1497 tmps += str->str_cur - (str->str_cur != 0);
1498 str_set(arg->arg_ptr.arg_str,tmps); /* remember last char */
1499 *tmps = '\0'; /* wipe it out */
1500 str->str_cur = tmps - str->str_ptr;
1502 str = arg->arg_ptr.arg_str;
1505 value = str_gnum(sarg[1]);
1506 value *= str_gnum(sarg[2]);
1509 value = str_gnum(sarg[1]);
1510 value /= 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 += str_gnum(sarg[2]);
1521 value = str_gnum(sarg[1]);
1522 value -= str_gnum(sarg[2]);
1525 value = str_gnum(sarg[1]);
1526 value = (double)(((long)value) << (long)str_gnum(sarg[2]));
1529 value = str_gnum(sarg[1]);
1530 value = (double)(((long)value) >> (long)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)(value <= str_gnum(sarg[2]));
1545 value = str_gnum(sarg[1]);
1546 value = (double)(value >= str_gnum(sarg[2]));
1549 value = str_gnum(sarg[1]);
1550 value = (double)(value == str_gnum(sarg[2]));
1553 value = str_gnum(sarg[1]);
1554 value = (double)(value != str_gnum(sarg[2]));
1557 value = str_gnum(sarg[1]);
1558 value = (double)(((long)value) & (long)str_gnum(sarg[2]));
1561 value = str_gnum(sarg[1]);
1562 value = (double)(((long)value) ^ (long)str_gnum(sarg[2]));
1565 value = str_gnum(sarg[1]);
1566 value = (double)(((long)value) | (long)str_gnum(sarg[2]));
1569 if (str_true(sarg[1])) {
1573 argflags = arg[anum].arg_flags;
1578 str_sset(str, sarg[1]);
1586 if (str_true(sarg[1])) {
1588 str_set(str, sarg[1]);
1599 argflags = arg[anum].arg_flags;
1603 anum = (str_true(sarg[1]) ? 2 : 3);
1604 optype = (anum == 2 ? O_ITEM2 : O_ITEM3);
1606 argflags = arg[anum].arg_flags;
1612 value = -str_gnum(sarg[1]);
1615 value = (double) !str_true(sarg[1]);
1618 value = (double) ~(long)str_gnum(sarg[1]);
1621 if (arg[1].arg_type == A_LVAL)
1622 defoutstab = arg[1].arg_ptr.arg_stab;
1624 defoutstab = stabent(str_get(sarg[1]),TRUE);
1625 if (!defoutstab->stab_io)
1626 defoutstab->stab_io = stio_new();
1627 curoutstab = defoutstab;
1628 str_set(str,curoutstab->stab_io->fp ? Yes : No);
1634 else if (arg[1].arg_type == A_LVAL)
1635 stab = arg[1].arg_ptr.arg_stab;
1637 stab = stabent(str_get(sarg[1]),TRUE);
1638 if (!stab->stab_io) {
1644 fp = stab->stab_io->fp;
1646 if (stab->stab_io->fmt_stab)
1647 form = stab->stab_io->fmt_stab->stab_form;
1649 form = stab->stab_form;
1655 format(&outrec,form);
1656 do_write(&outrec,stab->stab_io);
1657 if (stab->stab_io->flags & IOF_FLUSH)
1663 if (do_open(arg[1].arg_ptr.arg_stab,str_get(sarg[2]))) {
1665 arg[1].arg_ptr.arg_stab->stab_io->lines = 0;
1672 value = (double) do_trans(str,arg);
1673 str = arg->arg_ptr.arg_str;
1676 str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No);
1677 str = arg->arg_ptr.arg_str;
1681 do_close(arg[1].arg_ptr.arg_stab,TRUE) ? Yes : No );
1685 str_sset(str,do_each(arg[1].arg_ptr.arg_stab->stab_hash,sarg,retary));
1686 retary = Null(STR***); /* do_each already did retary */
1691 value = (double) do_kv(arg[1].arg_ptr.arg_stab->stab_hash,
1692 optype,sarg,retary);
1693 retary = Null(STR***); /* do_keys already did retary */
1697 ary = arg[1].arg_ptr.arg_stab->stab_array;
1698 maxarg = ary->ary_fill;
1699 if (retary) { /* array wanted */
1701 (STR **)saferealloc((char*)sarg,(maxarg+3)*sizeof(STR*));
1702 for (anum = 0; anum <= maxarg; anum++) {
1703 sarg[anum+1] = str = afetch(ary,anum);
1708 str = afetch(ary,maxarg);
1711 str = afetch(arg[2].arg_ptr.arg_stab->stab_array,
1712 ((int)str_gnum(sarg[1])) - arybase);
1717 tmpstab = arg[2].arg_ptr.arg_stab; /* XXX */
1718 str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
1723 anum = ((int)str_gnum(sarg[1])) - arybase;
1724 str = afetch(arg[2].arg_ptr.arg_stab->stab_array,anum);
1725 if (!str || str == &str_no) {
1727 astore(arg[2].arg_ptr.arg_stab->stab_array,anum,str);
1731 tmpstab = arg[2].arg_ptr.arg_stab;
1732 str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
1735 hstore(tmpstab->stab_hash,str_get(sarg[1]),str);
1737 if (tmpstab == envstab) { /* heavy wizardry going on here */
1738 str->str_link.str_magic = tmpstab;/* str is now magic */
1739 envname = savestr(str_get(sarg[1]));
1740 /* he threw the brick up into the air */
1742 else if (tmpstab == sigstab) { /* same thing, only different */
1743 str->str_link.str_magic = tmpstab;
1744 signame = savestr(str_get(sarg[1]));
1748 if (arg[1].arg_flags & AF_SPECIAL)
1749 str = do_push(arg,arg[2].arg_ptr.arg_stab->stab_array);
1751 str = str_new(0); /* must copy the STR */
1752 str_sset(str,sarg[1]);
1753 apush(arg[2].arg_ptr.arg_stab->stab_array,str);
1757 str = apop(arg[1].arg_ptr.arg_stab->stab_array);
1761 *(arg->arg_ptr.arg_str) = *str;
1763 bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
1765 safefree((char*)str);
1766 str = arg->arg_ptr.arg_str;
1769 str = ashift(arg[1].arg_ptr.arg_stab->stab_array);
1773 *(arg->arg_ptr.arg_str) = *str;
1775 bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
1777 safefree((char*)str);
1778 str = arg->arg_ptr.arg_str;
1781 value = (double) do_split(str_get(sarg[1]),arg[2].arg_ptr.arg_spat,retary);
1782 retary = Null(STR***); /* do_split already did retary */
1785 value = (double) str_len(sarg[1]);
1788 sarg[maxarg+1] = Nullstr;
1789 do_sprintf(str,arg->arg_len,sarg);
1792 anum = ((int)str_gnum(sarg[2])) - arybase;
1793 for (tmps = str_get(sarg[1]); *tmps && anum > 0; tmps++,anum--) ;
1794 anum = (int)str_gnum(sarg[3]);
1795 if (anum >= 0 && strlen(tmps) > anum)
1796 str_nset(str, tmps, anum);
1801 if (arg[2].arg_flags & AF_SPECIAL && arg[2].arg_type == A_EXPR)
1802 do_join(arg,str_get(sarg[1]),str);
1804 ajoin(arg[2].arg_ptr.arg_stab->stab_array,str_get(sarg[1]),str);
1807 tmps = str_get(sarg[1]);
1808 value = (double) strLT(tmps,str_get(sarg[2]));
1811 tmps = str_get(sarg[1]);
1812 value = (double) strGT(tmps,str_get(sarg[2]));
1815 tmps = str_get(sarg[1]);
1816 value = (double) strLE(tmps,str_get(sarg[2]));
1819 tmps = str_get(sarg[1]);
1820 value = (double) strGE(tmps,str_get(sarg[2]));
1823 tmps = str_get(sarg[1]);
1824 value = (double) strEQ(tmps,str_get(sarg[2]));
1827 tmps = str_get(sarg[1]);
1828 value = (double) strNE(tmps,str_get(sarg[2]));
1831 str_sset(str,do_subr(arg,sarg));
1839 stab = arg[2].arg_ptr.arg_stab;
1845 else if (arg[1].arg_flags & AF_SPECIAL)
1846 value = (double)do_aprint(arg,stab->stab_io->fp);
1848 value = (double)do_print(str_get(sarg[1]),stab->stab_io->fp);
1849 if (ors && optype == O_PRINT)
1850 do_print(ors, stab->stab_io->fp);
1852 if (stab->stab_io->flags & IOF_FLUSH)
1853 fflush(stab->stab_io->fp);
1856 tmps = str_get(sarg[1]);
1857 if (!tmps || !*tmps)
1858 tmps = getenv("HOME");
1859 if (!tmps || !*tmps)
1860 tmps = getenv("LOGDIR");
1861 value = (double)(chdir(tmps) >= 0);
1864 tmps = str_get(sarg[1]);
1865 if (!tmps || !*tmps)
1867 fatal("%s\n",str_get(sarg[1]));
1871 exit((int)str_gnum(sarg[1]));
1875 str_reset(str_get(sarg[1]));
1880 str = sarg[maxarg]; /* unwanted list, return last item */
1885 str_set(str, do_eof(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab) ? Yes : No);
1889 value = (double)do_tell(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab);
1893 value = str_gnum(sarg[2]);
1894 str_set(str, do_seek(arg[1].arg_ptr.arg_stab,
1895 (long)value, (int)str_gnum(sarg[3]) ) ? Yes : No);
1902 tmps = str_get(sarg[1]);
1903 while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label ||
1904 strNE(tmps,loop_stack[loop_ptr].loop_label) )) {
1907 deb("(Skipping label #%d %s)\n",loop_ptr,
1908 loop_stack[loop_ptr].loop_label);
1915 deb("(Found label #%d %s)\n",loop_ptr,
1916 loop_stack[loop_ptr].loop_label);
1921 fatal("Bad label: %s\n", maxarg > 0 ? tmps : "<null>");
1922 longjmp(loop_stack[loop_ptr].loop_env, optype);
1923 case O_GOTO:/* shudder */
1924 goto_targ = str_get(sarg[1]);
1925 longjmp(top_env, 1);
1927 tmps = str_get(sarg[1]);
1928 if (!(tmps2 = instr(tmps,str_get(sarg[2]))))
1929 value = (double)(-1 + arybase);
1931 value = (double)(tmps2 - tmps + arybase);
1934 value = (double) time(0);
1937 value = (double) do_tms(retary);
1938 retary = Null(STR***); /* do_tms already did retary */
1941 tmplong = (long) str_gnum(sarg[1]);
1942 value = (double) do_time(localtime(&tmplong),retary);
1943 retary = Null(STR***); /* do_localtime already did retary */
1946 tmplong = (long) str_gnum(sarg[1]);
1947 value = (double) do_time(gmtime(&tmplong),retary);
1948 retary = Null(STR***); /* do_gmtime already did retary */
1951 value = (double) do_stat(arg,sarg,retary);
1952 retary = Null(STR***); /* do_stat already did retary */
1955 tmps = str_get(sarg[1]);
1956 str_set(str,crypt(tmps,str_get(sarg[2])));
1959 value = exp(str_gnum(sarg[1]));
1962 value = log(str_gnum(sarg[1]));
1965 value = sqrt(str_gnum(sarg[1]));
1968 modf(str_gnum(sarg[1]),&value);
1971 value = (double) *str_get(sarg[1]);
1974 tmps = str_get(sarg[1]);
1976 if (!tmps || !*tmps)
1977 sleep((32767<<16)+32767);
1980 value = (double)tmplong;
1982 value = ((double)tmplong) - value;
1985 if (str_true(sarg[1])) {
1986 str_numset(str,0.0);
1988 arg->arg_type = optype = O_FLOP;
1990 arg[2].arg_flags &= ~AF_SPECIAL;
1991 arg[1].arg_flags |= AF_SPECIAL;
1992 argflags = arg[anum].arg_flags;
1999 if (str_true(sarg[2])) {
2000 arg->arg_type = O_FLIP;
2001 arg[1].arg_flags &= ~AF_SPECIAL;
2002 arg[2].arg_flags |= AF_SPECIAL;
2007 value = (double)fork();
2010 if (anum = vfork()) {
2011 ihand = signal(SIGINT, SIG_IGN);
2012 qhand = signal(SIGQUIT, SIG_IGN);
2013 while ((maxarg = wait(&argflags)) != anum && maxarg != -1)
2017 signal(SIGINT, ihand);
2018 signal(SIGQUIT, qhand);
2019 value = (double)argflags;
2024 if (arg[1].arg_flags & AF_SPECIAL)
2025 value = (double)do_aexec(arg);
2027 value = (double)do_exec(str_get(sarg[1]));
2039 tmps = str_get(sarg[1]);
2048 case '0': case '1': case '2': case '3': case '4':
2049 case '5': case '6': case '7':
2051 anum += *tmps++ & 15;
2053 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
2054 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
2058 anum += (*tmps++ & 7) + 9;
2067 value = (double)anum;
2073 if (arg[1].arg_flags & AF_SPECIAL)
2074 value = (double)apply(optype,arg,Null(STR**));
2077 value = (double)apply(optype,arg,sarg);
2081 value = (double)umask((int)str_gnum(sarg[1]));
2084 tmps = str_get(sarg[1]);
2086 value = (double)(rename(tmps,str_get(sarg[2])) >= 0);
2088 tmps2 = str_get(sarg[2]);
2090 if (!(anum = link(tmps,tmps2)))
2091 anum = UNLINK(tmps);
2092 value = (double)(anum >= 0);
2096 tmps = str_get(sarg[1]);
2097 value = (double)(link(tmps,str_get(sarg[2])) >= 0);
2100 ary = arg[2].arg_ptr.arg_stab->stab_array;
2101 if (arg[1].arg_flags & AF_SPECIAL)
2102 do_unshift(arg,ary);
2104 str = str_new(0); /* must copy the STR */
2105 str_sset(str,sarg[1]);
2109 value = (double)(ary->ary_fill + 1);
2113 do_eval(arg[1].arg_type != A_NULL ? sarg[1] : defstab->stab_val) );
2120 deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str));
2125 str_numset(str,value);
2130 deb("%s RETURNS \"%f\"\n",opname[optype],value);
2134 if (sarg != quicksarg) {
2136 if (optype == O_LIST)
2140 sarg[maxarg+1] = Nullstr;
2141 *retary = sarg; /* up to them to free it */
2153 deb("%s RETURNS ()\n",opname[optype],value);