1 /* $Header: arg.c,v 1.0.1.5 88/01/30 08:53:16 root Exp $
4 * Revision 1.0.1.5 88/01/30 08:53:16 root
5 * patch9: fixed some missing right parens introduced (?) by patch 2
7 * Revision 1.0.1.4 88/01/28 10:22:06 root
8 * patch8: added eval operator.
10 * Revision 1.0.1.2 88/01/24 03:52:34 root
11 * patch 2: added STATBLKS dependencies.
13 * Revision 1.0.1.1 88/01/21 21:27:10 root
14 * Now defines signal return values correctly using VOIDSIG.
16 * Revision 1.0 87/12/18 13:04:33 root
35 register SPAT *spat = arg[2].arg_ptr.arg_spat;
40 fatal("panic: do_match\n");
41 if (spat->spat_flags & SPAT_USED) {
48 if (spat->spat_runtime) {
49 t = str_get(eval(spat->spat_runtime,Null(STR***)));
52 deb("2.SPAT /%s/\n",t);
54 if (d = compile(&spat->spat_compex,t,TRUE,FALSE)) {
56 deb("/%s/: %s\n", t, d);
60 if (spat->spat_compex.complen <= 1 && curspat)
62 if (execute(&spat->spat_compex, s, TRUE, 0)) {
63 if (spat->spat_compex.numsubs)
75 if (spat->spat_flags & SPAT_USE_ONCE)
79 deb("2.SPAT %c%s%c\n",ch,spat->spat_compex.precomp,ch);
82 if (spat->spat_compex.complen <= 1 && curspat)
84 if (spat->spat_first) {
85 if (spat->spat_flags & SPAT_SCANFIRST) {
86 str_free(spat->spat_first);
87 spat->spat_first = Nullstr; /* disable optimization */
89 else if (*spat->spat_first->str_ptr != *s ||
90 strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
93 if (execute(&spat->spat_compex, s, TRUE, 0)) {
94 if (spat->spat_compex.numsubs)
96 if (spat->spat_flags & SPAT_USE_ONCE)
97 spat->spat_flags |= SPAT_USED;
116 spat = arg[2].arg_ptr.arg_spat;
119 fatal("panic: do_subst\n");
120 else if (spat->spat_runtime) {
123 m = str_get(eval(spat->spat_runtime,Null(STR***)));
124 if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
126 deb("/%s/: %s\n", m, d);
133 deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
136 if (spat->spat_compex.complen <= 1 && curspat)
138 if (spat->spat_first) {
139 if (spat->spat_flags & SPAT_SCANFIRST) {
140 str_free(spat->spat_first);
141 spat->spat_first = Nullstr; /* disable optimization */
143 else if (*spat->spat_first->str_ptr != *s ||
144 strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
147 if (m = execute(&spat->spat_compex, s, TRUE, 1)) {
150 dstr = str_new(str_len(str));
151 if (spat->spat_compex.numsubs)
155 fatal("Substitution loop?\n");
156 if (spat->spat_compex.numsubs)
157 s = spat->spat_compex.subbase;
158 str_ncat(dstr,s,m-s);
159 s = spat->spat_compex.subend[0];
160 str_scat(dstr,eval(spat->spat_repl,Null(STR***)));
161 if (spat->spat_flags & SPAT_USE_ONCE)
163 } while (m = execute(&spat->spat_compex, s, FALSE, 1));
165 str_replace(str,dstr);
179 register int matches = 0;
182 tbl = arg[2].arg_ptr.arg_cval;
185 fatal("panic: do_trans\n");
192 if (ch = tbl[*s & 0377]) {
203 do_split(s,spat,retary)
211 static ARRAY *myarray = Null(ARRAY*);
218 fatal("panic: do_split\n");
219 else if (spat->spat_runtime) {
222 m = str_get(eval(spat->spat_runtime,Null(STR***)));
223 if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
225 deb("/%s/: %s\n", m, d);
232 deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
238 ary = spat->spat_repl[1].arg_ptr.arg_stab->stab_array;
240 myarray = ary = anew();
242 while (*s && (m = execute(&spat->spat_compex, s, (iters == 0), 1))) {
243 if (spat->spat_compex.numsubs)
244 s = spat->spat_compex.subbase;
246 str_nset(dstr,s,m-s);
247 astore(ary, iters++, dstr);
249 fatal("Substitution loop?\n");
250 s = spat->spat_compex.subend[0];
252 if (*s) { /* ignore field after final "whitespace" */
253 dstr = str_new(0); /* if they interpolate, it's null anyway */
255 astore(ary, iters++, dstr);
258 while (iters > 0 && !*str_get(afetch(ary,iters-1)))
262 sarg = (STR**)safemalloc((iters+2)*sizeof(STR*));
265 sarg[iters+1] = Nullstr;
266 for (i = 1; i <= iters; i++)
267 sarg[i] = afetch(ary,i-1);
274 do_join(arg,delim,str)
276 register char *delim;
279 STR **tmpary; /* must not be register */
282 (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
285 str_sset(str,*elem++);
286 for (; *elem; elem++) {
291 safefree((char*)tmpary);
300 int len = strlen(name);
301 register STIO *stio = stab->stab_io;
303 while (len && isspace(name[len-1]))
306 stio = stab->stab_io = stio_new();
308 if (stio->type == '|')
310 else if (stio->type != '-')
316 for (name++; isspace(*name); name++) ;
317 fp = popen(name,"w");
319 else if (*name == '>' && name[1] == '>') {
320 for (name += 2; isspace(*name); name++) ;
321 fp = fopen(name,"a");
323 else if (*name == '>') {
324 for (name++; isspace(*name); name++) ;
325 if (strEQ(name,"-")) {
330 fp = fopen(name,"w");
334 for (name++; isspace(*name); name++) ;
335 if (strEQ(name,"-")) {
340 fp = fopen(name,"r");
342 else if (name[len-1] == '|') {
344 while (len && isspace(name[len-1]))
346 for (; isspace(*name); name++) ;
347 fp = popen(name,"r");
352 for (; isspace(*name); name++) ;
353 if (strEQ(name,"-")) {
358 fp = fopen(name,"r");
363 if (stio->type != '|' && stio->type != '-') {
364 if (fstat(fileno(fp),&statbuf) < 0) {
368 if ((statbuf.st_mode & S_IFMT) != S_IFREG &&
369 (statbuf.st_mode & S_IFMT) != S_IFCHR) {
385 while (alen(stab->stab_array) >= 0L) {
386 str = ashift(stab->stab_array);
387 str_sset(stab->stab_val,str);
388 STABSET(stab->stab_val);
389 oldname = str_get(stab->stab_val);
390 if (do_open(stab,oldname)) {
393 str_cat(str,inplace);
395 rename(oldname,str->str_ptr);
397 UNLINK(str->str_ptr);
398 link(oldname,str->str_ptr);
402 sprintf(tokenbuf,">%s",oldname);
403 do_open(argvoutstab,tokenbuf);
404 defoutstab = argvoutstab;
407 return stab->stab_io->fp;
410 fprintf(stderr,"Can't open %s\n",str_get(str));
414 do_close(argvoutstab,FALSE);
415 defoutstab = stabent("stdout",TRUE);
421 do_close(stab,explicit)
426 register STIO *stio = stab->stab_io;
428 if (!stio) /* never opened */
431 if (stio->type == '|')
432 retval = (pclose(stio->fp) >= 0);
433 else if (stio->type == '-')
436 retval = (fclose(stio->fp) != EOF);
455 stio = stab->stab_io;
461 #ifdef STDSTDIO /* (the code works without this) */
462 if (stio->fp->_cnt) /* cheat a little, since */
463 return FALSE; /* this is the most usual case */
468 ungetc(ch, stio->fp);
471 if (stio->flags & IOF_ARGV) { /* not necessarily a real EOF yet? */
472 if (!nextargv(stab)) /* get another fp handy */
476 return TRUE; /* normal fp, definitely end of file */
491 stio = stab->stab_io;
492 if (!stio || !stio->fp)
495 return ftell(stio->fp);
499 do_seek(stab, pos, whence)
509 stio = stab->stab_io;
510 if (!stio || !stio->fp)
513 return fseek(stio->fp, pos, whence) >= 0;
516 do_stat(arg,sarg,retary)
522 static ARRAY *myarray = Null(ARRAY*);
528 myarray = ary = anew();
530 if (arg[1].arg_type == A_LVAL) {
531 tmpstab = arg[1].arg_ptr.arg_stab;
532 if (!tmpstab->stab_io ||
533 fstat(fileno(tmpstab->stab_io->fp),&statbuf) < 0) {
538 if (stat(str_get(sarg[1]),&statbuf) < 0)
543 apush(ary,str_nmake((double)statbuf.st_dev));
544 apush(ary,str_nmake((double)statbuf.st_ino));
545 apush(ary,str_nmake((double)statbuf.st_mode));
546 apush(ary,str_nmake((double)statbuf.st_nlink));
547 apush(ary,str_nmake((double)statbuf.st_uid));
548 apush(ary,str_nmake((double)statbuf.st_gid));
549 apush(ary,str_nmake((double)statbuf.st_rdev));
550 apush(ary,str_nmake((double)statbuf.st_size));
551 apush(ary,str_nmake((double)statbuf.st_atime));
552 apush(ary,str_nmake((double)statbuf.st_mtime));
553 apush(ary,str_nmake((double)statbuf.st_ctime));
555 apush(ary,str_nmake((double)statbuf.st_blksize));
556 apush(ary,str_nmake((double)statbuf.st_blocks));
558 apush(ary,str_make(""));
559 apush(ary,str_make(""));
562 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
564 sarg[max+1] = Nullstr;
565 for (i = 1; i <= max; i++)
566 sarg[i] = afetch(ary,i-1);
576 static ARRAY *myarray = Null(ARRAY*);
583 myarray = ary = anew();
585 if (times(×buf) < 0)
590 apush(ary,str_nmake(((double)timesbuf.tms_utime)/60.0));
591 apush(ary,str_nmake(((double)timesbuf.tms_stime)/60.0));
592 apush(ary,str_nmake(((double)timesbuf.tms_cutime)/60.0));
593 apush(ary,str_nmake(((double)timesbuf.tms_cstime)/60.0));
595 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
597 sarg[max+1] = Nullstr;
598 for (i = 1; i <= max; i++)
599 sarg[i] = afetch(ary,i-1);
605 do_time(tmbuf,retary)
610 static ARRAY *myarray = Null(ARRAY*);
618 myarray = ary = anew();
625 apush(ary,str_nmake((double)tmbuf->tm_sec));
626 apush(ary,str_nmake((double)tmbuf->tm_min));
627 apush(ary,str_nmake((double)tmbuf->tm_hour));
628 apush(ary,str_nmake((double)tmbuf->tm_mday));
629 apush(ary,str_nmake((double)tmbuf->tm_mon));
630 apush(ary,str_nmake((double)tmbuf->tm_year));
631 apush(ary,str_nmake((double)tmbuf->tm_wday));
632 apush(ary,str_nmake((double)tmbuf->tm_yday));
633 apush(ary,str_nmake((double)tmbuf->tm_isdst));
635 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
637 sarg[max+1] = Nullstr;
638 for (i = 1; i <= max; i++)
639 sarg[i] = afetch(ary,i-1);
646 do_sprintf(str,len,sarg)
655 static STR *sargnull = &str_no;
658 len--; /* don't count pattern string */
660 for (s = str_get(*(sarg++)); *s; len--) {
661 if (len <= 0 || !*sarg) {
666 for (t = s; *t && *t != '%'; t++) ;
668 break; /* not enough % patterns, oh well */
669 for (t++; *sarg && *t && t != s; t++) {
683 case 'D': case 'X': case 'O':
686 case 'd': case 'x': case 'o': case 'c':
690 sprintf(buf,s,(long)str_gnum(*(sarg++)));
692 sprintf(buf,s,(int)str_gnum(*(sarg++)));
696 case 'E': case 'e': case 'f': case 'G': case 'g':
699 sprintf(buf,s,str_gnum(*(sarg++)));
706 sprintf(buf,s,str_get(*(sarg++)));
735 STR **tmpary; /* must not be register */
737 register bool retval;
740 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
741 if (arg->arg_type == O_PRTF) {
742 do_sprintf(arg->arg_ptr.arg_str,32767,tmpary);
743 retval = do_print(str_get(arg->arg_ptr.arg_str),fp);
747 for (elem = tmpary+1; *elem; elem++) {
751 if ((*elem)->str_nok || str_gnum(*elem) != 0.0)
752 fprintf(fp, ofmt, str_gnum(*elem));
756 retval = do_print(str_get(*elem), fp);
761 retval = do_print(ors, fp);
763 safefree((char*)tmpary);
771 STR **tmpary; /* must not be register */
777 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
779 for (elem = tmpary+1; *elem; elem++)
782 argv = (char**)safemalloc((i+1)*sizeof(char*));
784 for (elem = tmpary+1; *elem; elem++) {
785 *a++ = str_get(*elem);
788 execvp(argv[0],argv);
789 safefree((char*)argv);
791 safefree((char*)tmpary);
799 STR **tmpary; /* must not be register */
804 /* see if there are shell metacharacters in it */
806 for (s = cmd; *s; s++) {
807 if (*s != ' ' && !isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`",*s)) {
808 execl("/bin/sh","sh","-c",cmd,0);
812 argv = (char**)safemalloc(((s - cmd) / 2 + 2)*sizeof(char*));
816 while (isspace(*s)) s++;
819 while (*s && !isspace(*s)) s++;
825 execvp(argv[0],argv);
826 safefree((char*)argv);
835 STR **tmpary; /* must not be register */
837 register STR *str = &str_no;
839 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
840 for (elem = tmpary+1; *elem; elem++) {
845 safefree((char*)tmpary);
853 STR **tmpary; /* must not be register */
855 register STR *str = &str_no;
858 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
860 for (elem = tmpary+1; *elem; elem++)
864 for (elem = tmpary+1; *elem; elem++) {
869 safefree((char*)tmpary);
877 STR **tmpary; /* must not be register */
886 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
888 for (elem = tmpary+1; *elem; elem++)
893 val = (int)str_gnum(tmpary[1]);
894 for (elem = tmpary+2; *elem; elem++)
895 if (chmod(str_get(*elem),val))
902 val = (int)str_gnum(tmpary[1]);
903 val2 = (int)str_gnum(tmpary[2]);
904 for (elem = tmpary+3; *elem; elem++)
905 if (chown(str_get(*elem),val,val2))
913 val = (int)str_gnum(tmpary[1]);
916 for (elem = tmpary+2; *elem; elem++)
917 if (kill(atoi(str_get(*elem)),val))
922 for (elem = tmpary+1; *elem; elem++)
923 if (UNLINK(str_get(*elem)))
928 safefree((char*)tmpary);
935 register char **sarg;
940 savearray = defstab->stab_array;
941 defstab->stab_array = anew();
942 if (arg[1].arg_flags & AF_SPECIAL)
943 (void)do_push(arg,defstab->stab_array);
944 else if (arg[1].arg_type != A_NULL) {
946 str_sset(str,sarg[1]);
947 apush(defstab->stab_array,str);
949 str = cmd_exec(arg[2].arg_ptr.arg_stab->stab_sub);
950 afree(defstab->stab_array); /* put back old $_[] */
951 defstab->stab_array = savearray;
956 do_assign(retstr,arg)
960 STR **tmpary; /* must not be register */
961 register ARG *larg = arg[1].arg_ptr.arg_arg;
969 (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
971 if (arg->arg_flags & AF_COMMON) {
973 for (elem=tmpary+2; *elem; elem++) {
974 *elem = str_static(*elem);
978 if (larg->arg_type == O_LIST) {
979 lasti = larg->arg_len;
980 for (i=1,elem=tmpary+1; i <= lasti; i++) {
982 s = str_get(*(elem++));
985 switch (larg[i].arg_type) {
988 str = STAB_STR(larg[i].arg_ptr.arg_stab);
991 str = eval(larg[i].arg_ptr.arg_arg,Null(STR***));
997 i = elem - tmpary - 1;
999 else { /* should be an array name */
1000 ary = larg[1].arg_ptr.arg_stab->stab_array;
1001 for (i=0,elem=tmpary+1; *elem; i++) {
1004 str_sset(str,*(elem++));
1007 ary->ary_fill = i - 1; /* they can get the extra ones back by */
1008 } /* setting an element larger than old fill */
1009 str_numset(retstr,(double)i);
1011 safefree((char*)tmpary);
1015 do_kv(hash,kv,sarg,retary)
1018 register STR **sarg;
1021 register ARRAY *ary;
1024 static ARRAY *myarray = Null(ARRAY*);
1025 register HENT *entry;
1029 myarray = ary = anew();
1033 while (entry = hiternext(hash)) {
1036 apush(ary,str_make(hiterkey(entry)));
1038 apush(ary,str_make(str_get(hiterval(entry))));
1040 if (retary) { /* array wanted */
1041 sarg = (STR**)saferealloc((char*)sarg,(max+2)*sizeof(STR*));
1043 sarg[max+1] = Nullstr;
1044 for (i = 1; i <= max; i++)
1045 sarg[i] = afetch(ary,i-1);
1052 do_each(hash,sarg,retary)
1054 register STR **sarg;
1057 static STR *mystr = Nullstr;
1059 HENT *entry = hiternext(hash);
1066 if (retary) { /* array wanted */
1068 sarg = (STR**)saferealloc((char*)sarg,4*sizeof(STR*));
1071 sarg[1] = mystr = str_make(hiterkey(entry));
1072 retstr = sarg[2] = hiterval(entry);
1076 sarg = (STR**)saferealloc((char*)sarg,2*sizeof(STR*));
1078 sarg[1] = retstr = Nullstr;
1083 retstr = hiterval(entry);
1092 #define A(e1,e2,e3) (e1+(e2<<1)+(e3<<2))
1093 opargs[O_ITEM] = A(1,0,0);
1094 opargs[O_ITEM2] = A(0,0,0);
1095 opargs[O_ITEM3] = A(0,0,0);
1096 opargs[O_CONCAT] = A(1,1,0);
1097 opargs[O_MATCH] = A(1,0,0);
1098 opargs[O_NMATCH] = A(1,0,0);
1099 opargs[O_SUBST] = A(1,0,0);
1100 opargs[O_NSUBST] = A(1,0,0);
1101 opargs[O_ASSIGN] = A(1,1,0);
1102 opargs[O_MULTIPLY] = A(1,1,0);
1103 opargs[O_DIVIDE] = A(1,1,0);
1104 opargs[O_MODULO] = A(1,1,0);
1105 opargs[O_ADD] = A(1,1,0);
1106 opargs[O_SUBTRACT] = A(1,1,0);
1107 opargs[O_LEFT_SHIFT] = A(1,1,0);
1108 opargs[O_RIGHT_SHIFT] = A(1,1,0);
1109 opargs[O_LT] = A(1,1,0);
1110 opargs[O_GT] = A(1,1,0);
1111 opargs[O_LE] = A(1,1,0);
1112 opargs[O_GE] = A(1,1,0);
1113 opargs[O_EQ] = A(1,1,0);
1114 opargs[O_NE] = A(1,1,0);
1115 opargs[O_BIT_AND] = A(1,1,0);
1116 opargs[O_XOR] = A(1,1,0);
1117 opargs[O_BIT_OR] = A(1,1,0);
1118 opargs[O_AND] = A(1,0,0); /* don't eval arg 2 (yet) */
1119 opargs[O_OR] = A(1,0,0); /* don't eval arg 2 (yet) */
1120 opargs[O_COND_EXPR] = A(1,0,0); /* don't eval args 2 or 3 */
1121 opargs[O_COMMA] = A(1,1,0);
1122 opargs[O_NEGATE] = A(1,0,0);
1123 opargs[O_NOT] = A(1,0,0);
1124 opargs[O_COMPLEMENT] = A(1,0,0);
1125 opargs[O_WRITE] = A(1,0,0);
1126 opargs[O_OPEN] = A(1,1,0);
1127 opargs[O_TRANS] = A(1,0,0);
1128 opargs[O_NTRANS] = A(1,0,0);
1129 opargs[O_CLOSE] = A(0,0,0);
1130 opargs[O_ARRAY] = A(1,0,0);
1131 opargs[O_HASH] = A(1,0,0);
1132 opargs[O_LARRAY] = A(1,0,0);
1133 opargs[O_LHASH] = A(1,0,0);
1134 opargs[O_PUSH] = A(1,0,0);
1135 opargs[O_POP] = A(0,0,0);
1136 opargs[O_SHIFT] = A(0,0,0);
1137 opargs[O_SPLIT] = A(1,0,0);
1138 opargs[O_LENGTH] = A(1,0,0);
1139 opargs[O_SPRINTF] = A(1,0,0);
1140 opargs[O_SUBSTR] = A(1,1,1);
1141 opargs[O_JOIN] = A(1,0,0);
1142 opargs[O_SLT] = A(1,1,0);
1143 opargs[O_SGT] = A(1,1,0);
1144 opargs[O_SLE] = A(1,1,0);
1145 opargs[O_SGE] = A(1,1,0);
1146 opargs[O_SEQ] = A(1,1,0);
1147 opargs[O_SNE] = A(1,1,0);
1148 opargs[O_SUBR] = A(1,0,0);
1149 opargs[O_PRINT] = A(1,0,0);
1150 opargs[O_CHDIR] = A(1,0,0);
1151 opargs[O_DIE] = A(1,0,0);
1152 opargs[O_EXIT] = A(1,0,0);
1153 opargs[O_RESET] = A(1,0,0);
1154 opargs[O_LIST] = A(0,0,0);
1155 opargs[O_EOF] = A(0,0,0);
1156 opargs[O_TELL] = A(0,0,0);
1157 opargs[O_SEEK] = A(0,1,1);
1158 opargs[O_LAST] = A(1,0,0);
1159 opargs[O_NEXT] = A(1,0,0);
1160 opargs[O_REDO] = A(1,0,0);
1161 opargs[O_GOTO] = A(1,0,0);
1162 opargs[O_INDEX] = A(1,1,0);
1163 opargs[O_TIME] = A(0,0,0);
1164 opargs[O_TMS] = A(0,0,0);
1165 opargs[O_LOCALTIME] = A(1,0,0);
1166 opargs[O_GMTIME] = A(1,0,0);
1167 opargs[O_STAT] = A(1,0,0);
1168 opargs[O_CRYPT] = A(1,1,0);
1169 opargs[O_EXP] = A(1,0,0);
1170 opargs[O_LOG] = A(1,0,0);
1171 opargs[O_SQRT] = A(1,0,0);
1172 opargs[O_INT] = A(1,0,0);
1173 opargs[O_PRTF] = A(1,0,0);
1174 opargs[O_ORD] = A(1,0,0);
1175 opargs[O_SLEEP] = A(1,0,0);
1176 opargs[O_FLIP] = A(1,0,0);
1177 opargs[O_FLOP] = A(0,1,0);
1178 opargs[O_KEYS] = A(0,0,0);
1179 opargs[O_VALUES] = A(0,0,0);
1180 opargs[O_EACH] = A(0,0,0);
1181 opargs[O_CHOP] = A(1,0,0);
1182 opargs[O_FORK] = A(1,0,0);
1183 opargs[O_EXEC] = A(1,0,0);
1184 opargs[O_SYSTEM] = A(1,0,0);
1185 opargs[O_OCT] = A(1,0,0);
1186 opargs[O_HEX] = A(1,0,0);
1187 opargs[O_CHMOD] = A(1,0,0);
1188 opargs[O_CHOWN] = A(1,0,0);
1189 opargs[O_KILL] = A(1,0,0);
1190 opargs[O_RENAME] = A(1,1,0);
1191 opargs[O_UNLINK] = A(1,0,0);
1192 opargs[O_UMASK] = A(1,0,0);
1193 opargs[O_UNSHIFT] = A(1,0,0);
1194 opargs[O_LINK] = A(1,1,0);
1195 opargs[O_REPEAT] = A(1,1,0);
1196 opargs[O_EVAL] = A(1,0,0);
1200 static void (*ihand)();
1201 static void (*qhand)();
1203 static int (*ihand)();
1204 static int (*qhand)();
1210 STR ***retary; /* where to return an array to, null if nowhere */
1214 register int optype;
1215 register int maxarg;
1218 register STR **sarg = quicksarg;
1219 register char *tmps;
1228 bool assigning = FALSE;
1229 double exp(), log(), sqrt(), modf();
1230 char *crypt(), *getenv();
1234 str = arg->arg_ptr.arg_str;
1235 optype = arg->arg_type;
1236 maxarg = arg->arg_len;
1237 if (maxarg > 3 || retary) {
1238 sarg = (STR **)safemalloc((maxarg+2) * sizeof(STR*));
1242 deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg);
1244 debname[dlevel] = opname[optype][0];
1245 debdelim[dlevel++] = ':';
1247 for (anum = 1; anum <= maxarg; anum++) {
1248 argflags = arg[anum].arg_flags;
1249 if (argflags & AF_SPECIAL)
1252 switch (arg[anum].arg_type) {
1254 sarg[anum] = &str_no;
1263 deb("%d.EXPR =>\n",anum);
1266 sarg[anum] = eval(arg[anum].arg_ptr.arg_arg, Null(STR***));
1272 deb("%d.CMD (%lx) =>\n",anum,arg[anum].arg_ptr.arg_cmd);
1275 sarg[anum] = cmd_exec(arg[anum].arg_ptr.arg_cmd);
1278 sarg[anum] = STAB_STR(arg[anum].arg_ptr.arg_stab);
1281 sprintf(buf,"STAB $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
1290 deb("%d.LEXPR =>\n",anum);
1293 str = eval(arg[anum].arg_ptr.arg_arg,Null(STR***));
1295 fatal("panic: A_LEXPR\n");
1300 sprintf(buf,"LVAL $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
1304 str = STAB_STR(arg[anum].arg_ptr.arg_stab);
1306 fatal("panic: A_LVAL\n");
1309 if (argflags & AF_PRE) {
1310 if (argflags & AF_UP)
1316 str = arg->arg_ptr.arg_str;
1318 else if (argflags & AF_POST) {
1319 sarg[anum] = str_static(str);
1320 if (argflags & AF_UP)
1325 str = arg->arg_ptr.arg_str;
1332 sarg[anum] = str_static(&str_no);
1333 str_numset(sarg[anum],
1334 (double)alen(arg[anum].arg_ptr.arg_stab->stab_array));
1340 sarg[anum] = arg[anum].arg_ptr.arg_str;
1346 (void) interp(str,str_get(arg[anum].arg_ptr.arg_str));
1353 tmps = str_get(arg[anum].arg_ptr.arg_str);
1354 fp = popen(str_get(interp(str,tmps)),"r");
1355 tmpstr = str_new(80);
1358 while (str_gets(tmpstr,fp) != Nullch) {
1359 str_scat(str,tmpstr);
1361 statusvalue = pclose(fp);
1374 last_in_stab = arg[anum].arg_ptr.arg_stab;
1375 if (last_in_stab->stab_io) {
1376 fp = last_in_stab->stab_io->fp;
1377 if (!fp && (last_in_stab->stab_io->flags & IOF_ARGV)) {
1378 if (last_in_stab->stab_io->flags & IOF_START) {
1379 last_in_stab->stab_io->flags &= ~IOF_START;
1380 last_in_stab->stab_io->lines = 0;
1381 if (alen(last_in_stab->stab_array) < 0L) {
1382 tmpstr = str_make("-"); /* assume stdin */
1383 apush(last_in_stab->stab_array, tmpstr);
1386 fp = nextargv(last_in_stab);
1387 if (!fp) /* Note: fp != last_in_stab->stab_io->fp */
1388 do_close(last_in_stab,FALSE); /* now it does */
1393 sarg[anum] = &str_no;
1394 else if (!str_gets(str,fp)) {
1395 if (last_in_stab->stab_io->flags & IOF_ARGV) {
1396 fp = nextargv(last_in_stab);
1399 do_close(last_in_stab,FALSE);
1400 last_in_stab->stab_io->flags |= IOF_START;
1405 sarg[anum] = &str_no;
1409 last_in_stab->stab_io->lines++;
1419 deb("%d.%s = '%s'\n",anum,tmps,str_peek(sarg[anum]));
1425 str_sset(str,sarg[1]);
1430 str_sset(str,sarg[2]);
1435 str_sset(str,sarg[3]);
1440 str_sset(str,sarg[1]);
1441 str_scat(str,sarg[2]);
1446 str_sset(str,sarg[1]);
1447 anum = (long)str_gnum(sarg[2]);
1449 tmpstr = str_new(0);
1450 str_sset(tmpstr,str);
1451 for (anum--; anum; anum--)
1452 str_scat(str,tmpstr);
1455 str_sset(str,&str_no);
1459 str_set(str, do_match(str_get(sarg[1]),arg) ? Yes : No);
1463 str_set(str, do_match(str_get(sarg[1]),arg) ? No : Yes);
1467 value = (double) do_subst(str, arg);
1468 str = arg->arg_ptr.arg_str;
1471 str_set(arg->arg_ptr.arg_str, do_subst(str, arg) ? No : Yes);
1472 str = arg->arg_ptr.arg_str;
1475 if (arg[2].arg_flags & AF_SPECIAL)
1479 str_sset(str, sarg[2]);
1484 tmps = str_get(str);
1485 tmps += str->str_cur - (str->str_cur != 0);
1486 str_set(arg->arg_ptr.arg_str,tmps); /* remember last char */
1487 *tmps = '\0'; /* wipe it out */
1488 str->str_cur = tmps - str->str_ptr;
1490 str = arg->arg_ptr.arg_str;
1493 value = str_gnum(sarg[1]);
1494 value *= str_gnum(sarg[2]);
1497 value = str_gnum(sarg[1]);
1498 value /= str_gnum(sarg[2]);
1501 value = str_gnum(sarg[1]);
1502 value = (double)(((long)value) % (long)str_gnum(sarg[2]));
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 = (double)(((long)value) >> (long)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)(value != 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 value = str_gnum(sarg[1]);
1554 value = (double)(((long)value) | (long)str_gnum(sarg[2]));
1557 if (str_true(sarg[1])) {
1561 argflags = arg[anum].arg_flags;
1566 str_sset(str, sarg[1]);
1574 if (str_true(sarg[1])) {
1576 str_set(str, sarg[1]);
1587 argflags = arg[anum].arg_flags;
1591 anum = (str_true(sarg[1]) ? 2 : 3);
1592 optype = (anum == 2 ? O_ITEM2 : O_ITEM3);
1594 argflags = arg[anum].arg_flags;
1600 value = -str_gnum(sarg[1]);
1603 value = (double) !str_true(sarg[1]);
1606 value = (double) ~(long)str_gnum(sarg[1]);
1609 if (arg[1].arg_type == A_LVAL)
1610 defoutstab = arg[1].arg_ptr.arg_stab;
1612 defoutstab = stabent(str_get(sarg[1]),TRUE);
1613 if (!defoutstab->stab_io)
1614 defoutstab->stab_io = stio_new();
1615 curoutstab = defoutstab;
1616 str_set(str,curoutstab->stab_io->fp ? Yes : No);
1622 else if (arg[1].arg_type == A_LVAL)
1623 stab = arg[1].arg_ptr.arg_stab;
1625 stab = stabent(str_get(sarg[1]),TRUE);
1626 if (!stab->stab_io) {
1632 fp = stab->stab_io->fp;
1634 if (stab->stab_io->fmt_stab)
1635 form = stab->stab_io->fmt_stab->stab_form;
1637 form = stab->stab_form;
1643 format(&outrec,form);
1644 do_write(&outrec,stab->stab_io);
1645 if (stab->stab_io->flags & IOF_FLUSH)
1651 if (do_open(arg[1].arg_ptr.arg_stab,str_get(sarg[2]))) {
1653 arg[1].arg_ptr.arg_stab->stab_io->lines = 0;
1660 value = (double) do_trans(str,arg);
1661 str = arg->arg_ptr.arg_str;
1664 str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No);
1665 str = arg->arg_ptr.arg_str;
1669 do_close(arg[1].arg_ptr.arg_stab,TRUE) ? Yes : No );
1673 str_sset(str,do_each(arg[1].arg_ptr.arg_stab->stab_hash,sarg,retary));
1674 retary = Null(STR***); /* do_each already did retary */
1679 value = (double) do_kv(arg[1].arg_ptr.arg_stab->stab_hash,
1680 optype,sarg,retary);
1681 retary = Null(STR***); /* do_keys already did retary */
1685 ary = arg[1].arg_ptr.arg_stab->stab_array;
1686 maxarg = ary->ary_fill;
1687 if (retary) { /* array wanted */
1689 (STR **)saferealloc((char*)sarg,(maxarg+3)*sizeof(STR*));
1690 for (anum = 0; anum <= maxarg; anum++) {
1691 sarg[anum+1] = str = afetch(ary,anum);
1696 str = afetch(ary,maxarg);
1699 str = afetch(arg[2].arg_ptr.arg_stab->stab_array,
1700 ((int)str_gnum(sarg[1])) - arybase);
1705 tmpstab = arg[2].arg_ptr.arg_stab; /* XXX */
1706 str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
1711 anum = ((int)str_gnum(sarg[1])) - arybase;
1712 str = afetch(arg[2].arg_ptr.arg_stab->stab_array,anum);
1713 if (!str || str == &str_no) {
1715 astore(arg[2].arg_ptr.arg_stab->stab_array,anum,str);
1719 tmpstab = arg[2].arg_ptr.arg_stab;
1720 str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
1723 hstore(tmpstab->stab_hash,str_get(sarg[1]),str);
1725 if (tmpstab == envstab) { /* heavy wizardry going on here */
1726 str->str_link.str_magic = tmpstab;/* str is now magic */
1727 envname = savestr(str_get(sarg[1]));
1728 /* he threw the brick up into the air */
1730 else if (tmpstab == sigstab) { /* same thing, only different */
1731 str->str_link.str_magic = tmpstab;
1732 signame = savestr(str_get(sarg[1]));
1736 if (arg[1].arg_flags & AF_SPECIAL)
1737 str = do_push(arg,arg[2].arg_ptr.arg_stab->stab_array);
1739 str = str_new(0); /* must copy the STR */
1740 str_sset(str,sarg[1]);
1741 apush(arg[2].arg_ptr.arg_stab->stab_array,str);
1745 str = apop(arg[1].arg_ptr.arg_stab->stab_array);
1749 *(arg->arg_ptr.arg_str) = *str;
1751 bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
1753 safefree((char*)str);
1754 str = arg->arg_ptr.arg_str;
1757 str = ashift(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 value = (double) do_split(str_get(sarg[1]),arg[2].arg_ptr.arg_spat,retary);
1770 retary = Null(STR***); /* do_split already did retary */
1773 value = (double) str_len(sarg[1]);
1776 sarg[maxarg+1] = Nullstr;
1777 do_sprintf(str,arg->arg_len,sarg);
1780 anum = ((int)str_gnum(sarg[2])) - arybase;
1781 for (tmps = str_get(sarg[1]); *tmps && anum > 0; tmps++,anum--) ;
1782 anum = (int)str_gnum(sarg[3]);
1783 if (anum >= 0 && strlen(tmps) > anum)
1784 str_nset(str, tmps, anum);
1789 if (arg[2].arg_flags & AF_SPECIAL && arg[2].arg_type == A_EXPR)
1790 do_join(arg,str_get(sarg[1]),str);
1792 ajoin(arg[2].arg_ptr.arg_stab->stab_array,str_get(sarg[1]),str);
1795 tmps = str_get(sarg[1]);
1796 value = (double) strLT(tmps,str_get(sarg[2]));
1799 tmps = str_get(sarg[1]);
1800 value = (double) strGT(tmps,str_get(sarg[2]));
1803 tmps = str_get(sarg[1]);
1804 value = (double) strLE(tmps,str_get(sarg[2]));
1807 tmps = str_get(sarg[1]);
1808 value = (double) strGE(tmps,str_get(sarg[2]));
1811 tmps = str_get(sarg[1]);
1812 value = (double) strEQ(tmps,str_get(sarg[2]));
1815 tmps = str_get(sarg[1]);
1816 value = (double) strNE(tmps,str_get(sarg[2]));
1819 str_sset(str,do_subr(arg,sarg));
1827 stab = arg[2].arg_ptr.arg_stab;
1833 else if (arg[1].arg_flags & AF_SPECIAL)
1834 value = (double)do_aprint(arg,stab->stab_io->fp);
1836 value = (double)do_print(str_get(sarg[1]),stab->stab_io->fp);
1837 if (ors && optype == O_PRINT)
1838 do_print(ors, stab->stab_io->fp);
1840 if (stab->stab_io->flags & IOF_FLUSH)
1841 fflush(stab->stab_io->fp);
1844 tmps = str_get(sarg[1]);
1845 if (!tmps || !*tmps)
1846 tmps = getenv("HOME");
1847 if (!tmps || !*tmps)
1848 tmps = getenv("LOGDIR");
1849 value = (double)(chdir(tmps) >= 0);
1852 tmps = str_get(sarg[1]);
1853 if (!tmps || !*tmps)
1855 fatal("%s\n",str_get(sarg[1]));
1859 exit((int)str_gnum(sarg[1]));
1863 str_reset(str_get(sarg[1]));
1868 str = sarg[maxarg]; /* unwanted list, return last item */
1873 str_set(str, do_eof(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab) ? Yes : No);
1877 value = (double)do_tell(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab);
1881 value = str_gnum(sarg[2]);
1882 str_set(str, do_seek(arg[1].arg_ptr.arg_stab,
1883 (long)value, (int)str_gnum(sarg[3]) ) ? Yes : No);
1890 tmps = str_get(sarg[1]);
1891 while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label ||
1892 strNE(tmps,loop_stack[loop_ptr].loop_label) )) {
1895 deb("(Skipping label #%d %s)\n",loop_ptr,
1896 loop_stack[loop_ptr].loop_label);
1903 deb("(Found label #%d %s)\n",loop_ptr,
1904 loop_stack[loop_ptr].loop_label);
1909 fatal("Bad label: %s\n", maxarg > 0 ? tmps : "<null>");
1910 longjmp(loop_stack[loop_ptr].loop_env, optype);
1911 case O_GOTO:/* shudder */
1912 goto_targ = str_get(sarg[1]);
1913 longjmp(top_env, 1);
1915 tmps = str_get(sarg[1]);
1916 if (!(tmps2 = instr(tmps,str_get(sarg[2]))))
1917 value = (double)(-1 + arybase);
1919 value = (double)(tmps2 - tmps + arybase);
1922 value = (double) time(0);
1925 value = (double) do_tms(retary);
1926 retary = Null(STR***); /* do_tms already did retary */
1929 tmplong = (long) str_gnum(sarg[1]);
1930 value = (double) do_time(localtime(&tmplong),retary);
1931 retary = Null(STR***); /* do_localtime already did retary */
1934 tmplong = (long) str_gnum(sarg[1]);
1935 value = (double) do_time(gmtime(&tmplong),retary);
1936 retary = Null(STR***); /* do_gmtime already did retary */
1939 value = (double) do_stat(arg,sarg,retary);
1940 retary = Null(STR***); /* do_stat already did retary */
1943 tmps = str_get(sarg[1]);
1944 str_set(str,crypt(tmps,str_get(sarg[2])));
1947 value = exp(str_gnum(sarg[1]));
1950 value = log(str_gnum(sarg[1]));
1953 value = sqrt(str_gnum(sarg[1]));
1956 modf(str_gnum(sarg[1]),&value);
1959 value = (double) *str_get(sarg[1]);
1962 tmps = str_get(sarg[1]);
1964 if (!tmps || !*tmps)
1965 sleep((32767<<16)+32767);
1968 value = (double)tmplong;
1970 value = ((double)tmplong) - value;
1973 if (str_true(sarg[1])) {
1974 str_numset(str,0.0);
1976 arg->arg_type = optype = O_FLOP;
1978 arg[2].arg_flags &= ~AF_SPECIAL;
1979 arg[1].arg_flags |= AF_SPECIAL;
1980 argflags = arg[anum].arg_flags;
1987 if (str_true(sarg[2])) {
1988 arg->arg_type = O_FLIP;
1989 arg[1].arg_flags &= ~AF_SPECIAL;
1990 arg[2].arg_flags |= AF_SPECIAL;
1995 value = (double)fork();
1998 if (anum = vfork()) {
1999 ihand = signal(SIGINT, SIG_IGN);
2000 qhand = signal(SIGQUIT, SIG_IGN);
2001 while ((maxarg = wait(&argflags)) != anum && maxarg != -1)
2005 signal(SIGINT, ihand);
2006 signal(SIGQUIT, qhand);
2007 value = (double)argflags;
2012 if (arg[1].arg_flags & AF_SPECIAL)
2013 value = (double)do_aexec(arg);
2015 value = (double)do_exec(str_get(sarg[1]));
2027 tmps = str_get(sarg[1]);
2036 case '0': case '1': case '2': case '3': case '4':
2037 case '5': case '6': case '7':
2039 anum += *tmps++ & 15;
2041 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
2042 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
2046 anum += (*tmps++ & 7) + 9;
2055 value = (double)anum;
2061 if (arg[1].arg_flags & AF_SPECIAL)
2062 value = (double)apply(optype,arg,Null(STR**));
2065 value = (double)apply(optype,arg,sarg);
2069 value = (double)umask((int)str_gnum(sarg[1]));
2072 tmps = str_get(sarg[1]);
2074 value = (double)(rename(tmps,str_get(sarg[2])) >= 0);
2076 tmps2 = str_get(sarg[2]);
2078 if (!(anum = link(tmps,tmps2)))
2079 anum = UNLINK(tmps);
2080 value = (double)(anum >= 0);
2084 tmps = str_get(sarg[1]);
2085 value = (double)(link(tmps,str_get(sarg[2])) >= 0);
2088 ary = arg[2].arg_ptr.arg_stab->stab_array;
2089 if (arg[1].arg_flags & AF_SPECIAL)
2090 do_unshift(arg,ary);
2092 str = str_new(0); /* must copy the STR */
2093 str_sset(str,sarg[1]);
2097 value = (double)(ary->ary_fill + 1);
2101 do_eval(arg[1].arg_type != A_NULL ? sarg[1] : defstab->stab_val) );
2108 deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str));
2113 str_numset(str,value);
2118 deb("%s RETURNS \"%f\"\n",opname[optype],value);
2122 if (sarg != quicksarg) {
2124 if (optype == O_LIST)
2128 sarg[maxarg+1] = Nullstr;
2129 *retary = sarg; /* up to them to free it */
2141 deb("%s RETURNS ()\n",opname[optype],value);