1 /* $Header: arg.c,v 1.0.1.1 88/01/21 21:27:10 root Exp $
4 * Revision 1.0.1.1 88/01/21 21:27:10 root
5 * Now defines signal return values correctly using VOIDSIG.
7 * Revision 1.0 87/12/18 13:04:33 root
26 register SPAT *spat = arg[2].arg_ptr.arg_spat;
31 fatal("panic: do_match\n");
32 if (spat->spat_flags & SPAT_USED) {
39 if (spat->spat_runtime) {
40 t = str_get(eval(spat->spat_runtime,Null(STR***)));
43 deb("2.SPAT /%s/\n",t);
45 if (d = compile(&spat->spat_compex,t,TRUE,FALSE)) {
47 deb("/%s/: %s\n", t, d);
51 if (spat->spat_compex.complen <= 1 && curspat)
53 if (execute(&spat->spat_compex, s, TRUE, 0)) {
54 if (spat->spat_compex.numsubs)
66 if (spat->spat_flags & SPAT_USE_ONCE)
70 deb("2.SPAT %c%s%c\n",ch,spat->spat_compex.precomp,ch);
73 if (spat->spat_compex.complen <= 1 && curspat)
75 if (spat->spat_first) {
76 if (spat->spat_flags & SPAT_SCANFIRST) {
77 str_free(spat->spat_first);
78 spat->spat_first = Nullstr; /* disable optimization */
80 else if (*spat->spat_first->str_ptr != *s ||
81 strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
84 if (execute(&spat->spat_compex, s, TRUE, 0)) {
85 if (spat->spat_compex.numsubs)
87 if (spat->spat_flags & SPAT_USE_ONCE)
88 spat->spat_flags |= SPAT_USED;
107 spat = arg[2].arg_ptr.arg_spat;
110 fatal("panic: do_subst\n");
111 else if (spat->spat_runtime) {
114 m = str_get(eval(spat->spat_runtime,Null(STR***)));
115 if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
117 deb("/%s/: %s\n", m, d);
124 deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
127 if (spat->spat_compex.complen <= 1 && curspat)
129 if (spat->spat_first) {
130 if (spat->spat_flags & SPAT_SCANFIRST) {
131 str_free(spat->spat_first);
132 spat->spat_first = Nullstr; /* disable optimization */
134 else if (*spat->spat_first->str_ptr != *s ||
135 strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
138 if (m = execute(&spat->spat_compex, s, TRUE, 1)) {
141 dstr = str_new(str_len(str));
142 if (spat->spat_compex.numsubs)
146 fatal("Substitution loop?\n");
147 if (spat->spat_compex.numsubs)
148 s = spat->spat_compex.subbase;
149 str_ncat(dstr,s,m-s);
150 s = spat->spat_compex.subend[0];
151 str_scat(dstr,eval(spat->spat_repl,Null(STR***)));
152 if (spat->spat_flags & SPAT_USE_ONCE)
154 } while (m = execute(&spat->spat_compex, s, FALSE, 1));
156 str_replace(str,dstr);
170 register int matches = 0;
173 tbl = arg[2].arg_ptr.arg_cval;
176 fatal("panic: do_trans\n");
183 if (ch = tbl[*s & 0377]) {
194 do_split(s,spat,retary)
202 static ARRAY *myarray = Null(ARRAY*);
209 fatal("panic: do_split\n");
210 else if (spat->spat_runtime) {
213 m = str_get(eval(spat->spat_runtime,Null(STR***)));
214 if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
216 deb("/%s/: %s\n", m, d);
223 deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
229 ary = spat->spat_repl[1].arg_ptr.arg_stab->stab_array;
231 myarray = ary = anew();
233 while (*s && (m = execute(&spat->spat_compex, s, (iters == 0), 1))) {
234 if (spat->spat_compex.numsubs)
235 s = spat->spat_compex.subbase;
237 str_nset(dstr,s,m-s);
238 astore(ary, iters++, dstr);
240 fatal("Substitution loop?\n");
241 s = spat->spat_compex.subend[0];
243 if (*s) { /* ignore field after final "whitespace" */
244 dstr = str_new(0); /* if they interpolate, it's null anyway */
246 astore(ary, iters++, dstr);
249 while (iters > 0 && !*str_get(afetch(ary,iters-1)))
253 sarg = (STR**)safemalloc((iters+2)*sizeof(STR*));
256 sarg[iters+1] = Nullstr;
257 for (i = 1; i <= iters; i++)
258 sarg[i] = afetch(ary,i-1);
265 do_join(arg,delim,str)
267 register char *delim;
270 STR **tmpary; /* must not be register */
273 (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
276 str_sset(str,*elem++);
277 for (; *elem; elem++) {
282 safefree((char*)tmpary);
291 int len = strlen(name);
292 register STIO *stio = stab->stab_io;
294 while (len && isspace(name[len-1]))
297 stio = stab->stab_io = stio_new();
299 if (stio->type == '|')
301 else if (stio->type != '-')
307 for (name++; isspace(*name); name++) ;
308 fp = popen(name,"w");
310 else if (*name == '>' && name[1] == '>') {
311 for (name += 2; isspace(*name); name++) ;
312 fp = fopen(name,"a");
314 else if (*name == '>') {
315 for (name++; isspace(*name); name++) ;
316 if (strEQ(name,"-")) {
321 fp = fopen(name,"w");
325 for (name++; isspace(*name); name++) ;
326 if (strEQ(name,"-")) {
331 fp = fopen(name,"r");
333 else if (name[len-1] == '|') {
335 while (len && isspace(name[len-1]))
337 for (; isspace(*name); name++) ;
338 fp = popen(name,"r");
343 for (; isspace(*name); name++) ;
344 if (strEQ(name,"-")) {
349 fp = fopen(name,"r");
354 if (stio->type != '|' && stio->type != '-') {
355 if (fstat(fileno(fp),&statbuf) < 0) {
359 if ((statbuf.st_mode & S_IFMT) != S_IFREG &&
360 (statbuf.st_mode & S_IFMT) != S_IFCHR) {
376 while (alen(stab->stab_array) >= 0L) {
377 str = ashift(stab->stab_array);
378 str_sset(stab->stab_val,str);
379 STABSET(stab->stab_val);
380 oldname = str_get(stab->stab_val);
381 if (do_open(stab,oldname)) {
384 str_cat(str,inplace);
386 rename(oldname,str->str_ptr);
388 UNLINK(str->str_ptr);
389 link(oldname,str->str_ptr);
393 sprintf(tokenbuf,">%s",oldname);
394 do_open(argvoutstab,tokenbuf);
395 defoutstab = argvoutstab;
398 return stab->stab_io->fp;
401 fprintf(stderr,"Can't open %s\n",str_get(str));
405 do_close(argvoutstab,FALSE);
406 defoutstab = stabent("stdout",TRUE);
412 do_close(stab,explicit)
417 register STIO *stio = stab->stab_io;
419 if (!stio) /* never opened */
422 if (stio->type == '|')
423 retval = (pclose(stio->fp) >= 0);
424 else if (stio->type == '-')
427 retval = (fclose(stio->fp) != EOF);
446 stio = stab->stab_io;
452 #ifdef STDSTDIO /* (the code works without this) */
453 if (stio->fp->_cnt) /* cheat a little, since */
454 return FALSE; /* this is the most usual case */
459 ungetc(ch, stio->fp);
462 if (stio->flags & IOF_ARGV) { /* not necessarily a real EOF yet? */
463 if (!nextargv(stab)) /* get another fp handy */
467 return TRUE; /* normal fp, definitely end of file */
482 stio = stab->stab_io;
483 if (!stio || !stio->fp)
486 return ftell(stio->fp);
490 do_seek(stab, pos, whence)
500 stio = stab->stab_io;
501 if (!stio || !stio->fp)
504 return fseek(stio->fp, pos, whence) >= 0;
507 do_stat(arg,sarg,retary)
513 static ARRAY *myarray = Null(ARRAY*);
519 myarray = ary = anew();
521 if (arg[1].arg_type == A_LVAL) {
522 tmpstab = arg[1].arg_ptr.arg_stab;
523 if (!tmpstab->stab_io ||
524 fstat(fileno(tmpstab->stab_io->fp),&statbuf) < 0) {
529 if (stat(str_get(sarg[1]),&statbuf) < 0)
534 apush(ary,str_nmake((double)statbuf.st_dev));
535 apush(ary,str_nmake((double)statbuf.st_ino));
536 apush(ary,str_nmake((double)statbuf.st_mode));
537 apush(ary,str_nmake((double)statbuf.st_nlink));
538 apush(ary,str_nmake((double)statbuf.st_uid));
539 apush(ary,str_nmake((double)statbuf.st_gid));
540 apush(ary,str_nmake((double)statbuf.st_rdev));
541 apush(ary,str_nmake((double)statbuf.st_size));
542 apush(ary,str_nmake((double)statbuf.st_atime));
543 apush(ary,str_nmake((double)statbuf.st_mtime));
544 apush(ary,str_nmake((double)statbuf.st_ctime));
545 apush(ary,str_nmake((double)statbuf.st_blksize));
546 apush(ary,str_nmake((double)statbuf.st_blocks));
548 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
550 sarg[max+1] = Nullstr;
551 for (i = 1; i <= max; i++)
552 sarg[i] = afetch(ary,i-1);
562 static ARRAY *myarray = Null(ARRAY*);
569 myarray = ary = anew();
571 if (times(×buf) < 0)
576 apush(ary,str_nmake(((double)timesbuf.tms_utime)/60.0));
577 apush(ary,str_nmake(((double)timesbuf.tms_stime)/60.0));
578 apush(ary,str_nmake(((double)timesbuf.tms_cutime)/60.0));
579 apush(ary,str_nmake(((double)timesbuf.tms_cstime)/60.0));
581 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
583 sarg[max+1] = Nullstr;
584 for (i = 1; i <= max; i++)
585 sarg[i] = afetch(ary,i-1);
591 do_time(tmbuf,retary)
596 static ARRAY *myarray = Null(ARRAY*);
604 myarray = ary = anew();
611 apush(ary,str_nmake((double)tmbuf->tm_sec));
612 apush(ary,str_nmake((double)tmbuf->tm_min));
613 apush(ary,str_nmake((double)tmbuf->tm_hour));
614 apush(ary,str_nmake((double)tmbuf->tm_mday));
615 apush(ary,str_nmake((double)tmbuf->tm_mon));
616 apush(ary,str_nmake((double)tmbuf->tm_year));
617 apush(ary,str_nmake((double)tmbuf->tm_wday));
618 apush(ary,str_nmake((double)tmbuf->tm_yday));
619 apush(ary,str_nmake((double)tmbuf->tm_isdst));
621 sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
623 sarg[max+1] = Nullstr;
624 for (i = 1; i <= max; i++)
625 sarg[i] = afetch(ary,i-1);
632 do_sprintf(str,len,sarg)
643 len--; /* don't count pattern string */
645 for (s = str_get(*(sarg++)); *sarg && *s && len; len--) {
647 for (t = s; *t && *t != '%'; t++) ;
649 break; /* not enough % patterns, oh well */
650 for (t++; *sarg && *t && t != s; t++) {
664 case 'D': case 'X': case 'O':
667 case 'd': case 'x': case 'o': case 'c':
671 sprintf(buf,s,(long)str_gnum(*(sarg++)));
673 sprintf(buf,s,(int)str_gnum(*(sarg++)));
677 case 'E': case 'e': case 'f': case 'G': case 'g':
680 sprintf(buf,s,str_gnum(*(sarg++)));
687 sprintf(buf,s,str_get(*(sarg++)));
716 STR **tmpary; /* must not be register */
718 register bool retval;
721 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
722 if (arg->arg_type == O_PRTF) {
723 do_sprintf(arg->arg_ptr.arg_str,32767,tmpary);
724 retval = do_print(str_get(arg->arg_ptr.arg_str),fp);
728 for (elem = tmpary+1; *elem; elem++) {
732 if ((*elem)->str_nok || str_gnum(*elem) != 0.0)
733 fprintf(fp, ofmt, str_gnum(*elem));
737 retval = do_print(str_get(*elem), fp);
742 retval = do_print(ors, fp);
744 safefree((char*)tmpary);
752 STR **tmpary; /* must not be register */
758 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
760 for (elem = tmpary+1; *elem; elem++)
763 argv = (char**)safemalloc((i+1)*sizeof(char*));
765 for (elem = tmpary+1; *elem; elem++) {
766 *a++ = str_get(*elem);
769 execvp(argv[0],argv);
770 safefree((char*)argv);
772 safefree((char*)tmpary);
780 STR **tmpary; /* must not be register */
785 /* see if there are shell metacharacters in it */
787 for (s = cmd; *s; s++) {
788 if (*s != ' ' && !isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`",*s)) {
789 execl("/bin/sh","sh","-c",cmd,0);
793 argv = (char**)safemalloc(((s - cmd) / 2 + 2)*sizeof(char*));
797 while (isspace(*s)) s++;
800 while (*s && !isspace(*s)) s++;
806 execvp(argv[0],argv);
807 safefree((char*)argv);
816 STR **tmpary; /* must not be register */
818 register STR *str = &str_no;
820 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
821 for (elem = tmpary+1; *elem; elem++) {
826 safefree((char*)tmpary);
834 STR **tmpary; /* must not be register */
836 register STR *str = &str_no;
839 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
841 for (elem = tmpary+1; *elem; elem++)
845 for (elem = tmpary+1; *elem; elem++) {
850 safefree((char*)tmpary);
858 STR **tmpary; /* must not be register */
867 (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
869 for (elem = tmpary+1; *elem; elem++)
874 val = (int)str_gnum(tmpary[1]);
875 for (elem = tmpary+2; *elem; elem++)
876 if (chmod(str_get(*elem),val))
883 val = (int)str_gnum(tmpary[1]);
884 val2 = (int)str_gnum(tmpary[2]);
885 for (elem = tmpary+3; *elem; elem++)
886 if (chown(str_get(*elem),val,val2))
894 val = (int)str_gnum(tmpary[1]);
897 for (elem = tmpary+2; *elem; elem++)
898 if (kill(atoi(str_get(*elem)),val))
903 for (elem = tmpary+1; *elem; elem++)
904 if (UNLINK(str_get(*elem)))
909 safefree((char*)tmpary);
916 register char **sarg;
921 savearray = defstab->stab_array;
922 defstab->stab_array = anew();
923 if (arg[1].arg_flags & AF_SPECIAL)
924 (void)do_push(arg,defstab->stab_array);
925 else if (arg[1].arg_type != A_NULL) {
927 str_sset(str,sarg[1]);
928 apush(defstab->stab_array,str);
930 str = cmd_exec(arg[2].arg_ptr.arg_stab->stab_sub);
931 afree(defstab->stab_array); /* put back old $_[] */
932 defstab->stab_array = savearray;
937 do_assign(retstr,arg)
941 STR **tmpary; /* must not be register */
942 register ARG *larg = arg[1].arg_ptr.arg_arg;
950 (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
952 if (arg->arg_flags & AF_COMMON) {
954 for (elem=tmpary+2; *elem; elem++) {
955 *elem = str_static(*elem);
959 if (larg->arg_type == O_LIST) {
960 lasti = larg->arg_len;
961 for (i=1,elem=tmpary+1; i <= lasti; i++) {
963 s = str_get(*(elem++));
966 switch (larg[i].arg_type) {
969 str = STAB_STR(larg[i].arg_ptr.arg_stab);
972 str = eval(larg[i].arg_ptr.arg_arg,Null(STR***));
978 i = elem - tmpary - 1;
980 else { /* should be an array name */
981 ary = larg[1].arg_ptr.arg_stab->stab_array;
982 for (i=0,elem=tmpary+1; *elem; i++) {
985 str_sset(str,*(elem++));
988 ary->ary_fill = i - 1; /* they can get the extra ones back by */
989 } /* setting an element larger than old fill */
990 str_numset(retstr,(double)i);
992 safefree((char*)tmpary);
996 do_kv(hash,kv,sarg,retary)
1002 register ARRAY *ary;
1005 static ARRAY *myarray = Null(ARRAY*);
1006 register HENT *entry;
1010 myarray = ary = anew();
1014 while (entry = hiternext(hash)) {
1017 apush(ary,str_make(hiterkey(entry)));
1019 apush(ary,str_make(str_get(hiterval(entry))));
1021 if (retary) { /* array wanted */
1022 sarg = (STR**)saferealloc((char*)sarg,(max+2)*sizeof(STR*));
1024 sarg[max+1] = Nullstr;
1025 for (i = 1; i <= max; i++)
1026 sarg[i] = afetch(ary,i-1);
1033 do_each(hash,sarg,retary)
1035 register STR **sarg;
1038 static STR *mystr = Nullstr;
1040 HENT *entry = hiternext(hash);
1047 if (retary) { /* array wanted */
1049 sarg = (STR**)saferealloc((char*)sarg,4*sizeof(STR*));
1052 sarg[1] = mystr = str_make(hiterkey(entry));
1053 retstr = sarg[2] = hiterval(entry);
1057 sarg = (STR**)saferealloc((char*)sarg,2*sizeof(STR*));
1059 sarg[1] = retstr = Nullstr;
1064 retstr = hiterval(entry);
1073 #define A(e1,e2,e3) (e1+(e2<<1)+(e3<<2))
1074 opargs[O_ITEM] = A(1,0,0);
1075 opargs[O_ITEM2] = A(0,0,0);
1076 opargs[O_ITEM3] = A(0,0,0);
1077 opargs[O_CONCAT] = A(1,1,0);
1078 opargs[O_MATCH] = A(1,0,0);
1079 opargs[O_NMATCH] = A(1,0,0);
1080 opargs[O_SUBST] = A(1,0,0);
1081 opargs[O_NSUBST] = A(1,0,0);
1082 opargs[O_ASSIGN] = A(1,1,0);
1083 opargs[O_MULTIPLY] = A(1,1,0);
1084 opargs[O_DIVIDE] = A(1,1,0);
1085 opargs[O_MODULO] = A(1,1,0);
1086 opargs[O_ADD] = A(1,1,0);
1087 opargs[O_SUBTRACT] = A(1,1,0);
1088 opargs[O_LEFT_SHIFT] = A(1,1,0);
1089 opargs[O_RIGHT_SHIFT] = A(1,1,0);
1090 opargs[O_LT] = A(1,1,0);
1091 opargs[O_GT] = A(1,1,0);
1092 opargs[O_LE] = A(1,1,0);
1093 opargs[O_GE] = A(1,1,0);
1094 opargs[O_EQ] = A(1,1,0);
1095 opargs[O_NE] = A(1,1,0);
1096 opargs[O_BIT_AND] = A(1,1,0);
1097 opargs[O_XOR] = A(1,1,0);
1098 opargs[O_BIT_OR] = A(1,1,0);
1099 opargs[O_AND] = A(1,0,0); /* don't eval arg 2 (yet) */
1100 opargs[O_OR] = A(1,0,0); /* don't eval arg 2 (yet) */
1101 opargs[O_COND_EXPR] = A(1,0,0); /* don't eval args 2 or 3 */
1102 opargs[O_COMMA] = A(1,1,0);
1103 opargs[O_NEGATE] = A(1,0,0);
1104 opargs[O_NOT] = A(1,0,0);
1105 opargs[O_COMPLEMENT] = A(1,0,0);
1106 opargs[O_WRITE] = A(1,0,0);
1107 opargs[O_OPEN] = A(1,1,0);
1108 opargs[O_TRANS] = A(1,0,0);
1109 opargs[O_NTRANS] = A(1,0,0);
1110 opargs[O_CLOSE] = A(0,0,0);
1111 opargs[O_ARRAY] = A(1,0,0);
1112 opargs[O_HASH] = A(1,0,0);
1113 opargs[O_LARRAY] = A(1,0,0);
1114 opargs[O_LHASH] = A(1,0,0);
1115 opargs[O_PUSH] = A(1,0,0);
1116 opargs[O_POP] = A(0,0,0);
1117 opargs[O_SHIFT] = A(0,0,0);
1118 opargs[O_SPLIT] = A(1,0,0);
1119 opargs[O_LENGTH] = A(1,0,0);
1120 opargs[O_SPRINTF] = A(1,0,0);
1121 opargs[O_SUBSTR] = A(1,1,1);
1122 opargs[O_JOIN] = A(1,0,0);
1123 opargs[O_SLT] = A(1,1,0);
1124 opargs[O_SGT] = A(1,1,0);
1125 opargs[O_SLE] = A(1,1,0);
1126 opargs[O_SGE] = A(1,1,0);
1127 opargs[O_SEQ] = A(1,1,0);
1128 opargs[O_SNE] = A(1,1,0);
1129 opargs[O_SUBR] = A(1,0,0);
1130 opargs[O_PRINT] = A(1,0,0);
1131 opargs[O_CHDIR] = A(1,0,0);
1132 opargs[O_DIE] = A(1,0,0);
1133 opargs[O_EXIT] = A(1,0,0);
1134 opargs[O_RESET] = A(1,0,0);
1135 opargs[O_LIST] = A(0,0,0);
1136 opargs[O_EOF] = A(0,0,0);
1137 opargs[O_TELL] = A(0,0,0);
1138 opargs[O_SEEK] = A(0,1,1);
1139 opargs[O_LAST] = A(1,0,0);
1140 opargs[O_NEXT] = A(1,0,0);
1141 opargs[O_REDO] = A(1,0,0);
1142 opargs[O_GOTO] = A(1,0,0);
1143 opargs[O_INDEX] = A(1,1,0);
1144 opargs[O_TIME] = A(0,0,0);
1145 opargs[O_TMS] = A(0,0,0);
1146 opargs[O_LOCALTIME] = A(1,0,0);
1147 opargs[O_GMTIME] = A(1,0,0);
1148 opargs[O_STAT] = A(1,0,0);
1149 opargs[O_CRYPT] = A(1,1,0);
1150 opargs[O_EXP] = A(1,0,0);
1151 opargs[O_LOG] = A(1,0,0);
1152 opargs[O_SQRT] = A(1,0,0);
1153 opargs[O_INT] = A(1,0,0);
1154 opargs[O_PRTF] = A(1,0,0);
1155 opargs[O_ORD] = A(1,0,0);
1156 opargs[O_SLEEP] = A(1,0,0);
1157 opargs[O_FLIP] = A(1,0,0);
1158 opargs[O_FLOP] = A(0,1,0);
1159 opargs[O_KEYS] = A(0,0,0);
1160 opargs[O_VALUES] = A(0,0,0);
1161 opargs[O_EACH] = A(0,0,0);
1162 opargs[O_CHOP] = A(1,0,0);
1163 opargs[O_FORK] = A(1,0,0);
1164 opargs[O_EXEC] = A(1,0,0);
1165 opargs[O_SYSTEM] = A(1,0,0);
1166 opargs[O_OCT] = A(1,0,0);
1167 opargs[O_HEX] = A(1,0,0);
1168 opargs[O_CHMOD] = A(1,0,0);
1169 opargs[O_CHOWN] = A(1,0,0);
1170 opargs[O_KILL] = A(1,0,0);
1171 opargs[O_RENAME] = A(1,1,0);
1172 opargs[O_UNLINK] = A(1,0,0);
1173 opargs[O_UMASK] = A(1,0,0);
1174 opargs[O_UNSHIFT] = A(1,0,0);
1175 opargs[O_LINK] = A(1,1,0);
1176 opargs[O_REPEAT] = A(1,1,0);
1180 static void (*ihand)();
1181 static void (*qhand)();
1183 static int (*ihand)();
1184 static int (*qhand)();
1190 STR ***retary; /* where to return an array to, null if nowhere */
1194 register int optype;
1195 register int maxarg;
1198 register STR **sarg = quicksarg;
1199 register char *tmps;
1208 bool assigning = FALSE;
1209 double exp(), log(), sqrt(), modf();
1210 char *crypt(), *getenv();
1214 str = arg->arg_ptr.arg_str;
1215 optype = arg->arg_type;
1216 maxarg = arg->arg_len;
1217 if (maxarg > 3 || retary) {
1218 sarg = (STR **)safemalloc((maxarg+2) * sizeof(STR*));
1222 deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg);
1224 debname[dlevel] = opname[optype][0];
1225 debdelim[dlevel++] = ':';
1227 for (anum = 1; anum <= maxarg; anum++) {
1228 argflags = arg[anum].arg_flags;
1229 if (argflags & AF_SPECIAL)
1232 switch (arg[anum].arg_type) {
1234 sarg[anum] = &str_no;
1243 deb("%d.EXPR =>\n",anum);
1246 sarg[anum] = eval(arg[anum].arg_ptr.arg_arg, Null(STR***));
1252 deb("%d.CMD (%lx) =>\n",anum,arg[anum].arg_ptr.arg_cmd);
1255 sarg[anum] = cmd_exec(arg[anum].arg_ptr.arg_cmd);
1258 sarg[anum] = STAB_STR(arg[anum].arg_ptr.arg_stab);
1261 sprintf(buf,"STAB $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
1270 deb("%d.LEXPR =>\n",anum);
1273 str = eval(arg[anum].arg_ptr.arg_arg,Null(STR***));
1275 fatal("panic: A_LEXPR\n");
1280 sprintf(buf,"LVAL $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
1284 str = STAB_STR(arg[anum].arg_ptr.arg_stab);
1286 fatal("panic: A_LVAL\n");
1289 if (argflags & AF_PRE) {
1290 if (argflags & AF_UP)
1296 str = arg->arg_ptr.arg_str;
1298 else if (argflags & AF_POST) {
1299 sarg[anum] = str_static(str);
1300 if (argflags & AF_UP)
1305 str = arg->arg_ptr.arg_str;
1312 sarg[anum] = str_static(&str_no);
1313 str_numset(sarg[anum],
1314 (double)alen(arg[anum].arg_ptr.arg_stab->stab_array));
1320 sarg[anum] = arg[anum].arg_ptr.arg_str;
1326 (void) interp(str,str_get(arg[anum].arg_ptr.arg_str));
1333 tmps = str_get(arg[anum].arg_ptr.arg_str);
1334 fp = popen(str_get(interp(str,tmps)),"r");
1335 tmpstr = str_new(80);
1338 while (str_gets(tmpstr,fp) != Nullch) {
1339 str_scat(str,tmpstr);
1341 statusvalue = pclose(fp);
1354 last_in_stab = arg[anum].arg_ptr.arg_stab;
1355 if (last_in_stab->stab_io) {
1356 fp = last_in_stab->stab_io->fp;
1357 if (!fp && (last_in_stab->stab_io->flags & IOF_ARGV)) {
1358 if (last_in_stab->stab_io->flags & IOF_START) {
1359 last_in_stab->stab_io->flags &= ~IOF_START;
1360 last_in_stab->stab_io->lines = 0;
1361 if (alen(last_in_stab->stab_array) < 0L) {
1362 tmpstr = str_make("-"); /* assume stdin */
1363 apush(last_in_stab->stab_array, tmpstr);
1366 fp = nextargv(last_in_stab);
1367 if (!fp) /* Note: fp != last_in_stab->stab_io->fp */
1368 do_close(last_in_stab,FALSE); /* now it does */
1373 sarg[anum] = &str_no;
1374 else if (!str_gets(str,fp)) {
1375 if (last_in_stab->stab_io->flags & IOF_ARGV) {
1376 fp = nextargv(last_in_stab);
1379 do_close(last_in_stab,FALSE);
1380 last_in_stab->stab_io->flags |= IOF_START;
1385 sarg[anum] = &str_no;
1389 last_in_stab->stab_io->lines++;
1399 deb("%d.%s = '%s'\n",anum,tmps,str_peek(sarg[anum]));
1405 str_sset(str,sarg[1]);
1410 str_sset(str,sarg[2]);
1415 str_sset(str,sarg[3]);
1420 str_sset(str,sarg[1]);
1421 str_scat(str,sarg[2]);
1426 str_sset(str,sarg[1]);
1427 anum = (long)str_gnum(sarg[2]);
1429 tmpstr = str_new(0);
1430 str_sset(tmpstr,str);
1431 for (anum--; anum; anum--)
1432 str_scat(str,tmpstr);
1435 str_sset(str,&str_no);
1439 str_set(str, do_match(str_get(sarg[1]),arg) ? Yes : No);
1443 str_set(str, do_match(str_get(sarg[1]),arg) ? No : Yes);
1447 value = (double) do_subst(str, arg);
1448 str = arg->arg_ptr.arg_str;
1451 str_set(arg->arg_ptr.arg_str, do_subst(str, arg) ? No : Yes);
1452 str = arg->arg_ptr.arg_str;
1455 if (arg[2].arg_flags & AF_SPECIAL)
1459 str_sset(str, sarg[2]);
1464 tmps = str_get(str);
1465 tmps += str->str_cur - (str->str_cur != 0);
1466 str_set(arg->arg_ptr.arg_str,tmps); /* remember last char */
1467 *tmps = '\0'; /* wipe it out */
1468 str->str_cur = tmps - str->str_ptr;
1470 str = arg->arg_ptr.arg_str;
1473 value = str_gnum(sarg[1]);
1474 value *= str_gnum(sarg[2]);
1477 value = str_gnum(sarg[1]);
1478 value /= str_gnum(sarg[2]);
1481 value = str_gnum(sarg[1]);
1482 value = (double)(((long)value) % (long)str_gnum(sarg[2]));
1485 value = str_gnum(sarg[1]);
1486 value += str_gnum(sarg[2]);
1489 value = str_gnum(sarg[1]);
1490 value -= str_gnum(sarg[2]);
1493 value = str_gnum(sarg[1]);
1494 value = (double)(((long)value) << (long)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 = (double)(value < str_gnum(sarg[2]));
1505 value = str_gnum(sarg[1]);
1506 value = (double)(value > str_gnum(sarg[2]));
1509 value = str_gnum(sarg[1]);
1510 value = (double)(value <= str_gnum(sarg[2]));
1513 value = str_gnum(sarg[1]);
1514 value = (double)(value >= 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)(((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)(((long)value) | (long)str_gnum(sarg[2]));
1537 if (str_true(sarg[1])) {
1541 argflags = arg[anum].arg_flags;
1546 str_sset(str, sarg[1]);
1554 if (str_true(sarg[1])) {
1556 str_set(str, sarg[1]);
1567 argflags = arg[anum].arg_flags;
1571 anum = (str_true(sarg[1]) ? 2 : 3);
1572 optype = (anum == 2 ? O_ITEM2 : O_ITEM3);
1574 argflags = arg[anum].arg_flags;
1580 value = -str_gnum(sarg[1]);
1583 value = (double) !str_true(sarg[1]);
1586 value = (double) ~(long)str_gnum(sarg[1]);
1589 if (arg[1].arg_type == A_LVAL)
1590 defoutstab = arg[1].arg_ptr.arg_stab;
1592 defoutstab = stabent(str_get(sarg[1]),TRUE);
1593 if (!defoutstab->stab_io)
1594 defoutstab->stab_io = stio_new();
1595 curoutstab = defoutstab;
1596 str_set(str,curoutstab->stab_io->fp ? Yes : No);
1602 else if (arg[1].arg_type == A_LVAL)
1603 stab = arg[1].arg_ptr.arg_stab;
1605 stab = stabent(str_get(sarg[1]),TRUE);
1606 if (!stab->stab_io) {
1612 fp = stab->stab_io->fp;
1614 if (stab->stab_io->fmt_stab)
1615 form = stab->stab_io->fmt_stab->stab_form;
1617 form = stab->stab_form;
1623 format(&outrec,form);
1624 do_write(&outrec,stab->stab_io);
1625 if (stab->stab_io->flags & IOF_FLUSH)
1631 if (do_open(arg[1].arg_ptr.arg_stab,str_get(sarg[2]))) {
1633 arg[1].arg_ptr.arg_stab->stab_io->lines = 0;
1640 value = (double) do_trans(str,arg);
1641 str = arg->arg_ptr.arg_str;
1644 str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No);
1645 str = arg->arg_ptr.arg_str;
1649 do_close(arg[1].arg_ptr.arg_stab,TRUE) ? Yes : No );
1653 str_sset(str,do_each(arg[1].arg_ptr.arg_stab->stab_hash,sarg,retary));
1654 retary = Null(STR***); /* do_each already did retary */
1659 value = (double) do_kv(arg[1].arg_ptr.arg_stab->stab_hash,
1660 optype,sarg,retary);
1661 retary = Null(STR***); /* do_keys already did retary */
1665 ary = arg[1].arg_ptr.arg_stab->stab_array;
1666 maxarg = ary->ary_fill;
1667 if (retary) { /* array wanted */
1669 (STR **)saferealloc((char*)sarg,(maxarg+3)*sizeof(STR*));
1670 for (anum = 0; anum <= maxarg; anum++) {
1671 sarg[anum+1] = str = afetch(ary,anum);
1676 str = afetch(ary,maxarg);
1679 str = afetch(arg[2].arg_ptr.arg_stab->stab_array,
1680 ((int)str_gnum(sarg[1])) - arybase);
1685 tmpstab = arg[2].arg_ptr.arg_stab; /* XXX */
1686 str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
1691 anum = ((int)str_gnum(sarg[1])) - arybase;
1692 str = afetch(arg[2].arg_ptr.arg_stab->stab_array,anum);
1693 if (!str || str == &str_no) {
1695 astore(arg[2].arg_ptr.arg_stab->stab_array,anum,str);
1699 tmpstab = arg[2].arg_ptr.arg_stab;
1700 str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
1703 hstore(tmpstab->stab_hash,str_get(sarg[1]),str);
1705 if (tmpstab == envstab) { /* heavy wizardry going on here */
1706 str->str_link.str_magic = tmpstab;/* str is now magic */
1707 envname = savestr(str_get(sarg[1]));
1708 /* he threw the brick up into the air */
1710 else if (tmpstab == sigstab) { /* same thing, only different */
1711 str->str_link.str_magic = tmpstab;
1712 signame = savestr(str_get(sarg[1]));
1716 if (arg[1].arg_flags & AF_SPECIAL)
1717 str = do_push(arg,arg[2].arg_ptr.arg_stab->stab_array);
1719 str = str_new(0); /* must copy the STR */
1720 str_sset(str,sarg[1]);
1721 apush(arg[2].arg_ptr.arg_stab->stab_array,str);
1725 str = apop(arg[1].arg_ptr.arg_stab->stab_array);
1729 *(arg->arg_ptr.arg_str) = *str;
1731 bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
1733 safefree((char*)str);
1734 str = arg->arg_ptr.arg_str;
1737 str = ashift(arg[1].arg_ptr.arg_stab->stab_array);
1741 *(arg->arg_ptr.arg_str) = *str;
1743 bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
1745 safefree((char*)str);
1746 str = arg->arg_ptr.arg_str;
1749 value = (double) do_split(str_get(sarg[1]),arg[2].arg_ptr.arg_spat,retary);
1750 retary = Null(STR***); /* do_split already did retary */
1753 value = (double) str_len(sarg[1]);
1756 sarg[maxarg+1] = Nullstr;
1757 do_sprintf(str,arg->arg_len,sarg);
1760 anum = ((int)str_gnum(sarg[2])) - arybase;
1761 for (tmps = str_get(sarg[1]); *tmps && anum > 0; tmps++,anum--) ;
1762 anum = (int)str_gnum(sarg[3]);
1763 if (anum >= 0 && strlen(tmps) > anum)
1764 str_nset(str, tmps, anum);
1769 if (arg[2].arg_flags & AF_SPECIAL && arg[2].arg_type == A_EXPR)
1770 do_join(arg,str_get(sarg[1]),str);
1772 ajoin(arg[2].arg_ptr.arg_stab->stab_array,str_get(sarg[1]),str);
1775 tmps = str_get(sarg[1]);
1776 value = (double) strLT(tmps,str_get(sarg[2]));
1779 tmps = str_get(sarg[1]);
1780 value = (double) strGT(tmps,str_get(sarg[2]));
1783 tmps = str_get(sarg[1]);
1784 value = (double) strLE(tmps,str_get(sarg[2]));
1787 tmps = str_get(sarg[1]);
1788 value = (double) strGE(tmps,str_get(sarg[2]));
1791 tmps = str_get(sarg[1]);
1792 value = (double) strEQ(tmps,str_get(sarg[2]));
1795 tmps = str_get(sarg[1]);
1796 value = (double) strNE(tmps,str_get(sarg[2]));
1799 str_sset(str,do_subr(arg,sarg));
1807 stab = arg[2].arg_ptr.arg_stab;
1813 else if (arg[1].arg_flags & AF_SPECIAL)
1814 value = (double)do_aprint(arg,stab->stab_io->fp);
1816 value = (double)do_print(str_get(sarg[1]),stab->stab_io->fp);
1817 if (ors && optype == O_PRINT)
1818 do_print(ors, stab->stab_io->fp);
1820 if (stab->stab_io->flags & IOF_FLUSH)
1821 fflush(stab->stab_io->fp);
1824 tmps = str_get(sarg[1]);
1825 if (!tmps || !*tmps)
1826 tmps = getenv("HOME");
1827 if (!tmps || !*tmps)
1828 tmps = getenv("LOGDIR");
1829 value = (double)(chdir(tmps) >= 0);
1832 tmps = str_get(sarg[1]);
1833 if (!tmps || !*tmps)
1835 fatal("%s\n",str_get(sarg[1]));
1839 exit((int)str_gnum(sarg[1]));
1843 str_reset(str_get(sarg[1]));
1848 str = sarg[maxarg]; /* unwanted list, return last item */
1853 str_set(str, do_eof(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab) ? Yes : No);
1857 value = (double)do_tell(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab);
1861 value = str_gnum(sarg[2]);
1862 str_set(str, do_seek(arg[1].arg_ptr.arg_stab,
1863 (long)value, (int)str_gnum(sarg[3]) ) ? Yes : No);
1870 tmps = str_get(sarg[1]);
1871 while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label ||
1872 strNE(tmps,loop_stack[loop_ptr].loop_label) )) {
1875 deb("(Skipping label #%d %s)\n",loop_ptr,
1876 loop_stack[loop_ptr].loop_label);
1883 deb("(Found label #%d %s)\n",loop_ptr,
1884 loop_stack[loop_ptr].loop_label);
1889 fatal("Bad label: %s\n", maxarg > 0 ? tmps : "<null>");
1890 longjmp(loop_stack[loop_ptr].loop_env, optype);
1891 case O_GOTO:/* shudder */
1892 goto_targ = str_get(sarg[1]);
1893 longjmp(top_env, 1);
1895 tmps = str_get(sarg[1]);
1896 if (!(tmps2 = instr(tmps,str_get(sarg[2]))))
1897 value = (double)(-1 + arybase);
1899 value = (double)(tmps2 - tmps + arybase);
1902 value = (double) time(0);
1905 value = (double) do_tms(retary);
1906 retary = Null(STR***); /* do_tms already did retary */
1909 tmplong = (long) str_gnum(sarg[1]);
1910 value = (double) do_time(localtime(&tmplong),retary);
1911 retary = Null(STR***); /* do_localtime already did retary */
1914 tmplong = (long) str_gnum(sarg[1]);
1915 value = (double) do_time(gmtime(&tmplong),retary);
1916 retary = Null(STR***); /* do_gmtime already did retary */
1919 value = (double) do_stat(arg,sarg,retary);
1920 retary = Null(STR***); /* do_stat already did retary */
1923 tmps = str_get(sarg[1]);
1924 str_set(str,crypt(tmps,str_get(sarg[2])));
1927 value = exp(str_gnum(sarg[1]));
1930 value = log(str_gnum(sarg[1]));
1933 value = sqrt(str_gnum(sarg[1]));
1936 modf(str_gnum(sarg[1]),&value);
1939 value = (double) *str_get(sarg[1]);
1942 tmps = str_get(sarg[1]);
1944 if (!tmps || !*tmps)
1945 sleep((32767<<16)+32767);
1948 value = (double)tmplong;
1950 value = ((double)tmplong) - value;
1953 if (str_true(sarg[1])) {
1954 str_numset(str,0.0);
1956 arg->arg_type = optype = O_FLOP;
1958 arg[2].arg_flags &= ~AF_SPECIAL;
1959 arg[1].arg_flags |= AF_SPECIAL;
1960 argflags = arg[anum].arg_flags;
1967 if (str_true(sarg[2])) {
1968 arg->arg_type = O_FLIP;
1969 arg[1].arg_flags &= ~AF_SPECIAL;
1970 arg[2].arg_flags |= AF_SPECIAL;
1975 value = (double)fork();
1978 if (anum = vfork()) {
1979 ihand = signal(SIGINT, SIG_IGN);
1980 qhand = signal(SIGQUIT, SIG_IGN);
1981 while ((maxarg = wait(&argflags)) != anum && maxarg != -1)
1985 signal(SIGINT, ihand);
1986 signal(SIGQUIT, qhand);
1987 value = (double)argflags;
1992 if (arg[1].arg_flags & AF_SPECIAL)
1993 value = (double)do_aexec(arg);
1995 value = (double)do_exec(str_get(sarg[1]));
2007 tmps = str_get(sarg[1]);
2016 case '0': case '1': case '2': case '3': case '4':
2017 case '5': case '6': case '7':
2019 anum += *tmps++ & 15;
2021 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
2022 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
2026 anum += (*tmps++ & 7) + 9;
2035 value = (double)anum;
2041 if (arg[1].arg_flags & AF_SPECIAL)
2042 value = (double)apply(optype,arg,Null(STR**));
2045 value = (double)apply(optype,arg,sarg);
2049 value = (double)umask((int)str_gnum(sarg[1]));
2052 tmps = str_get(sarg[1]);
2054 value = (double)(rename(tmps,str_get(sarg[2])) >= 0);
2056 tmps2 = str_get(sarg[2]);
2058 if (!(anum = link(tmps,tmps2)))
2059 anum = UNLINK(tmps);
2060 value = (double)(anum >= 0);
2064 tmps = str_get(sarg[1]);
2065 value = (double)(link(tmps,str_get(sarg[2])) >= 0);
2068 ary = arg[2].arg_ptr.arg_stab->stab_array;
2069 if (arg[1].arg_flags & AF_SPECIAL)
2070 do_unshift(arg,ary);
2072 str = str_new(0); /* must copy the STR */
2073 str_sset(str,sarg[1]);
2077 value = (double)(ary->ary_fill + 1);
2083 deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str));
2088 str_numset(str,value);
2093 deb("%s RETURNS \"%f\"\n",opname[optype],value);
2097 if (sarg != quicksarg) {
2099 if (optype == O_LIST)
2103 sarg[maxarg+1] = Nullstr;
2104 *retary = sarg; /* up to them to free it */
2116 deb("%s RETURNS ()\n",opname[optype],value);