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-rw-r--r--arg.c2126
1 files changed, 896 insertions, 1230 deletions
diff --git a/arg.c b/arg.c
index 74da53c1da..4cdb889367 100644
--- a/arg.c
+++ b/arg.c
@@ -1,112 +1,168 @@
-/* $Header: arg.c,v 1.0.1.7 88/02/02 11:22:19 root Exp $
+/* $Header: arg.c,v 2.0 88/06/05 00:08:04 root Exp $
*
* $Log: arg.c,v $
- * Revision 1.0.1.7 88/02/02 11:22:19 root
- * patch13: fixed split(' ') to work right second time. Added CRYPT dependency.
- *
- * Revision 1.0.1.6 88/02/01 17:32:26 root
- * patch12: made split(' ') behave like awk in ignoring leading white space.
- *
- * Revision 1.0.1.5 88/01/30 08:53:16 root
- * patch9: fixed some missing right parens introduced (?) by patch 2
- *
- * Revision 1.0.1.4 88/01/28 10:22:06 root
- * patch8: added eval operator.
- *
- * Revision 1.0.1.2 88/01/24 03:52:34 root
- * patch 2: added STATBLKS dependencies.
- *
- * Revision 1.0.1.1 88/01/21 21:27:10 root
- * Now defines signal return values correctly using VOIDSIG.
- *
- * Revision 1.0 87/12/18 13:04:33 root
- * Initial revision
+ * Revision 2.0 88/06/05 00:08:04 root
+ * Baseline version 2.0.
*
*/
-#include <signal.h>
-#include "handy.h"
#include "EXTERN.h"
-#include "search.h"
-#include "util.h"
#include "perl.h"
-ARG *debarg;
+#include <signal.h>
+#include <errno.h>
-bool
-do_match(s,arg)
-register char *s;
+extern int errno;
+
+STR *
+do_match(arg,retary,sarg,ptrmaxsarg,sargoff,cushion)
register ARG *arg;
+STR ***retary;
+register STR **sarg;
+int *ptrmaxsarg;
+int sargoff;
+int cushion;
{
register SPAT *spat = arg[2].arg_ptr.arg_spat;
- register char *d;
register char *t;
+ register char *s = str_get(sarg[1]);
+ char *strend = s + sarg[1]->str_cur;
- if (!spat || !s)
- fatal("panic: do_match\n");
+ if (!spat)
+ return &str_yes;
+ if (!s)
+ fatal("panic: do_match");
+ if (retary) {
+ *retary = sarg; /* assume no match */
+ *ptrmaxsarg = sargoff;
+ }
if (spat->spat_flags & SPAT_USED) {
#ifdef DEBUGGING
if (debug & 8)
deb("2.SPAT USED\n");
#endif
- return FALSE;
+ return &str_no;
}
if (spat->spat_runtime) {
- t = str_get(eval(spat->spat_runtime,Null(STR***)));
+ t = str_get(eval(spat->spat_runtime,Null(STR***),-1));
#ifdef DEBUGGING
if (debug & 8)
deb("2.SPAT /%s/\n",t);
#endif
- if (d = compile(&spat->spat_compex,t,TRUE,FALSE)) {
-#ifdef DEBUGGING
- deb("/%s/: %s\n", t, d);
-#endif
- return FALSE;
- }
- if (spat->spat_compex.complen <= 1 && curspat)
- spat = curspat;
- if (execute(&spat->spat_compex, s, TRUE, 0)) {
- if (spat->spat_compex.numsubs)
+ spat->spat_regexp = regcomp(t,spat->spat_flags & SPAT_FOLD,1);
+ if (!*spat->spat_regexp->precomp && lastspat)
+ spat = lastspat;
+ if (regexec(spat->spat_regexp, s, strend, TRUE, 0,
+ sarg[1]->str_pok & 4 ? sarg[1] : Nullstr)) {
+ if (spat->spat_regexp->subbase)
curspat = spat;
- return TRUE;
+ lastspat = spat;
+ goto gotcha;
}
else
- return FALSE;
+ return &str_no;
}
else {
#ifdef DEBUGGING
if (debug & 8) {
char ch;
- if (spat->spat_flags & SPAT_USE_ONCE)
+ if (spat->spat_flags & SPAT_ONCE)
ch = '?';
else
ch = '/';
- deb("2.SPAT %c%s%c\n",ch,spat->spat_compex.precomp,ch);
+ deb("2.SPAT %c%s%c\n",ch,spat->spat_regexp->precomp,ch);
}
#endif
- if (spat->spat_compex.complen <= 1 && curspat)
- spat = curspat;
- if (spat->spat_first) {
+ if (!*spat->spat_regexp->precomp && lastspat)
+ spat = lastspat;
+ t = s;
+ if (hint) {
+ if (hint < s || hint > strend)
+ fatal("panic: hint in do_match");
+ s = hint;
+ hint = Nullch;
+ if (spat->spat_regexp->regback >= 0) {
+ s -= spat->spat_regexp->regback;
+ if (s < t)
+ s = t;
+ }
+ else
+ s = t;
+ }
+ else if (spat->spat_short) {
if (spat->spat_flags & SPAT_SCANFIRST) {
- str_free(spat->spat_first);
- spat->spat_first = Nullstr; /* disable optimization */
+ if (sarg[1]->str_pok == 5) {
+ if (screamfirst[spat->spat_short->str_rare] < 0)
+ goto nope;
+ else if (!(s = screaminstr(sarg[1],spat->spat_short)))
+ goto nope;
+ else if (spat->spat_flags & SPAT_ALL)
+ goto yup;
+ }
+ else if (!(s = fbminstr(s, strend, spat->spat_short)))
+ goto nope;
+ else if (spat->spat_flags & SPAT_ALL)
+ goto yup;
+ else if (spat->spat_regexp->regback >= 0) {
+ ++*(long*)&spat->spat_short->str_nval;
+ s -= spat->spat_regexp->regback;
+ if (s < t)
+ s = t;
+ }
+ else
+ s = t;
+ }
+ else if (!multiline && (*spat->spat_short->str_ptr != *s ||
+ strnNE(spat->spat_short->str_ptr, s, spat->spat_slen) ))
+ goto nope;
+ if (--*(long*)&spat->spat_short->str_nval < 0) {
+ str_free(spat->spat_short);
+ spat->spat_short = Nullstr; /* opt is being useless */
}
- else if (*spat->spat_first->str_ptr != *s ||
- strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
- return FALSE;
}
- if (execute(&spat->spat_compex, s, TRUE, 0)) {
- if (spat->spat_compex.numsubs)
+ if (regexec(spat->spat_regexp, s, strend, s == t, 0,
+ sarg[1]->str_pok & 4 ? sarg[1] : Nullstr)) {
+ if (spat->spat_regexp->subbase)
curspat = spat;
- if (spat->spat_flags & SPAT_USE_ONCE)
+ lastspat = spat;
+ if (spat->spat_flags & SPAT_ONCE)
spat->spat_flags |= SPAT_USED;
- return TRUE;
+ goto gotcha;
}
else
- return FALSE;
+ return &str_no;
}
/*NOTREACHED*/
+
+ gotcha:
+ if (retary && curspat == spat) {
+ int iters, i, len;
+
+ iters = spat->spat_regexp->nparens;
+ *ptrmaxsarg = iters + sargoff;
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (iters+2+cushion+sargoff)*sizeof(STR*)) + sargoff;
+
+ for (i = 1; i <= iters; i++) {
+ sarg[i] = str_static(&str_no);
+ if (s = spat->spat_regexp->startp[i]) {
+ len = spat->spat_regexp->endp[i] - s;
+ if (len > 0)
+ str_nset(sarg[i],s,len);
+ }
+ }
+ *retary = sarg;
+ }
+ return &str_yes;
+
+yup:
+ ++*(long*)&spat->spat_short->str_nval;
+ return &str_yes;
+
+nope:
+ ++*(long*)&spat->spat_short->str_nval;
+ return &str_no;
}
int
@@ -116,63 +172,96 @@ register ARG *arg;
{
register SPAT *spat;
register STR *dstr;
- register char *s;
+ register char *s = str_get(str);
+ char *strend = s + str->str_cur;
register char *m;
spat = arg[2].arg_ptr.arg_spat;
- s = str_get(str);
if (!spat || !s)
- fatal("panic: do_subst\n");
+ fatal("panic: do_subst");
else if (spat->spat_runtime) {
- char *d;
-
- m = str_get(eval(spat->spat_runtime,Null(STR***)));
- if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
-#ifdef DEBUGGING
- deb("/%s/: %s\n", m, d);
-#endif
- return 0;
- }
+ m = str_get(eval(spat->spat_runtime,Null(STR***),-1));
+ spat->spat_regexp = regcomp(m,spat->spat_flags & SPAT_FOLD,1);
}
#ifdef DEBUGGING
if (debug & 8) {
- deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
+ deb("2.SPAT /%s/\n",spat->spat_regexp->precomp);
}
#endif
- if (spat->spat_compex.complen <= 1 && curspat)
- spat = curspat;
- if (spat->spat_first) {
+ if (!*spat->spat_regexp->precomp && lastspat)
+ spat = lastspat;
+ m = s;
+ if (hint) {
+ if (hint < s || hint > strend)
+ fatal("panic: hint in do_match");
+ s = hint;
+ hint = Nullch;
+ if (spat->spat_regexp->regback >= 0) {
+ s -= spat->spat_regexp->regback;
+ if (s < m)
+ s = m;
+ }
+ else
+ s = m;
+ }
+ else if (spat->spat_short) {
if (spat->spat_flags & SPAT_SCANFIRST) {
- str_free(spat->spat_first);
- spat->spat_first = Nullstr; /* disable optimization */
+ if (str->str_pok == 5) {
+ if (screamfirst[spat->spat_short->str_rare] < 0)
+ goto nope;
+ else if (!(s = screaminstr(str,spat->spat_short)))
+ goto nope;
+ }
+ else if (!(s = fbminstr(s, strend, spat->spat_short)))
+ goto nope;
+ else if (spat->spat_regexp->regback >= 0) {
+ ++*(long*)&spat->spat_short->str_nval;
+ s -= spat->spat_regexp->regback;
+ if (s < m)
+ s = m;
+ }
+ else
+ s = m;
+ }
+ else if (!multiline && (*spat->spat_short->str_ptr != *s ||
+ strnNE(spat->spat_short->str_ptr, s, spat->spat_slen) ))
+ goto nope;
+ if (--*(long*)&spat->spat_short->str_nval < 0) {
+ str_free(spat->spat_short);
+ spat->spat_short = Nullstr; /* opt is being useless */
}
- else if (*spat->spat_first->str_ptr != *s ||
- strnNE(spat->spat_first->str_ptr, s, spat->spat_flen) )
- return 0;
}
- if (m = execute(&spat->spat_compex, s, TRUE, 1)) {
+ if (regexec(spat->spat_regexp, s, strend, s == m, 1,
+ str->str_pok & 4 ? str : Nullstr)) {
int iters = 0;
dstr = str_new(str_len(str));
- if (spat->spat_compex.numsubs)
+ str_nset(dstr,m,s-m);
+ if (spat->spat_regexp->subbase)
curspat = spat;
+ lastspat = spat;
do {
+ m = spat->spat_regexp->startp[0];
if (iters++ > 10000)
- fatal("Substitution loop?\n");
- if (spat->spat_compex.numsubs)
- s = spat->spat_compex.subbase;
+ fatal("Substitution loop");
+ if (spat->spat_regexp->subbase)
+ s = spat->spat_regexp->subbase;
str_ncat(dstr,s,m-s);
- s = spat->spat_compex.subend[0];
- str_scat(dstr,eval(spat->spat_repl,Null(STR***)));
- if (spat->spat_flags & SPAT_USE_ONCE)
+ s = spat->spat_regexp->endp[0];
+ str_scat(dstr,eval(spat->spat_repl,Null(STR***),-1));
+ if (spat->spat_flags & SPAT_ONCE)
break;
- } while (m = execute(&spat->spat_compex, s, FALSE, 1));
+ } while (regexec(spat->spat_regexp, s, strend, FALSE, 1, Nullstr));
str_cat(dstr,s);
str_replace(str,dstr);
STABSET(str);
return iters;
}
return 0;
+
+nope:
+ ++*(long*)&spat->spat_short->str_nval;
+ return 0;
}
int
@@ -188,7 +277,7 @@ register ARG *arg;
tbl = arg[2].arg_ptr.arg_cval;
s = str_get(str);
if (!tbl || !s)
- fatal("panic: do_trans\n");
+ fatal("panic: do_trans");
#ifdef DEBUGGING
if (debug & 8) {
deb("2.TBL\n");
@@ -206,28 +295,29 @@ register ARG *arg;
}
int
-do_split(s,spat,retary)
-register char *s;
+do_split(spat,retary,sarg,ptrmaxsarg,sargoff,cushion)
register SPAT *spat;
STR ***retary;
+register STR **sarg;
+int *ptrmaxsarg;
+int sargoff;
+int cushion;
{
+ register char *s = str_get(sarg[1]);
+ char *strend = s + sarg[1]->str_cur;
register STR *dstr;
register char *m;
register ARRAY *ary;
static ARRAY *myarray = Null(ARRAY*);
int iters = 0;
- STR **sarg;
- register char *e;
int i;
if (!spat || !s)
- fatal("panic: do_split\n");
+ fatal("panic: do_split");
else if (spat->spat_runtime) {
- char *d;
-
- m = str_get(eval(spat->spat_runtime,Null(STR***)));
+ m = str_get(eval(spat->spat_runtime,Null(STR***),-1));
if (!*m || (*m == ' ' && !m[1])) {
- m = "[ \\t\\n]+";
+ m = "\\s+";
spat->spat_flags |= SPAT_SKIPWHITE;
}
if (spat->spat_runtime->arg_type == O_ITEM &&
@@ -235,16 +325,11 @@ STR ***retary;
arg_free(spat->spat_runtime); /* it won't change, so */
spat->spat_runtime = Nullarg; /* no point compiling again */
}
- if (d = compile(&spat->spat_compex,m,TRUE,FALSE)) {
-#ifdef DEBUGGING
- deb("/%s/: %s\n", m, d);
-#endif
- return FALSE;
- }
+ spat->spat_regexp = regcomp(m,spat->spat_flags & SPAT_FOLD,1);
}
#ifdef DEBUGGING
if (debug & 8) {
- deb("2.SPAT /%s/\n",spat->spat_compex.precomp);
+ deb("2.SPAT /%s/\n",spat->spat_regexp->precomp);
}
#endif
if (retary)
@@ -252,21 +337,36 @@ STR ***retary;
else
ary = spat->spat_repl[1].arg_ptr.arg_stab->stab_array;
if (!ary)
- myarray = ary = anew();
+ myarray = ary = anew(Nullstab);
ary->ary_fill = -1;
if (spat->spat_flags & SPAT_SKIPWHITE) {
while (isspace(*s))
s++;
}
- while (*s && (m = execute(&spat->spat_compex, s, (iters == 0), 1))) {
- if (spat->spat_compex.numsubs)
- s = spat->spat_compex.subbase;
- dstr = str_new(m-s);
- str_nset(dstr,s,m-s);
- astore(ary, iters++, dstr);
- if (iters > 10000)
- fatal("Substitution loop?\n");
- s = spat->spat_compex.subend[0];
+ if (spat->spat_short) {
+ i = spat->spat_short->str_cur;
+ while (*s && (m = fbminstr(s, strend, spat->spat_short))) {
+ dstr = str_new(m-s);
+ str_nset(dstr,s,m-s);
+ astore(ary, iters++, dstr);
+ if (iters > 10000)
+ fatal("Substitution loop");
+ s = m + i;
+ }
+ }
+ else {
+ while (*s && regexec(spat->spat_regexp, s, strend, (iters == 0), 1,
+ Nullstr)) {
+ m = spat->spat_regexp->startp[0];
+ if (spat->spat_regexp->subbase)
+ s = spat->spat_regexp->subbase;
+ dstr = str_new(m-s);
+ str_nset(dstr,s,m-s);
+ astore(ary, iters++, dstr);
+ if (iters > 10000)
+ fatal("Substitution loop");
+ s = spat->spat_regexp->endp[0];
+ }
}
if (*s) { /* ignore field after final "whitespace" */
dstr = str_new(0); /* if they interpolate, it's null anyway */
@@ -278,10 +378,10 @@ STR ***retary;
iters--;
}
if (retary) {
- sarg = (STR**)safemalloc((iters+2)*sizeof(STR*));
+ *ptrmaxsarg = iters + sargoff;
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (iters+2+cushion+sargoff)*sizeof(STR*)) + sargoff;
- sarg[0] = Nullstr;
- sarg[iters+1] = Nullstr;
for (i = 1; i <= iters; i++)
sarg[i] = afetch(ary,i-1);
*retary = sarg;
@@ -297,12 +397,14 @@ register STR *str;
{
STR **tmpary; /* must not be register */
register STR **elem;
+ register int items;
- (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
+ (void)eval(arg[2].arg_ptr.arg_arg,&tmpary,-1);
+ items = (int)str_gnum(*tmpary);
elem = tmpary+1;
- if (*elem)
- str_sset(str,*elem++);
- for (; *elem; elem++) {
+ if (items-- > 0)
+ str_sset(str,*elem++);
+ for (; items > 0; items--,elem++) {
str_cat(str,delim);
str_scat(str,*elem);
}
@@ -310,6 +412,49 @@ register STR *str;
safefree((char*)tmpary);
}
+FILE *
+forkopen(name,mode)
+char *name;
+char *mode;
+{
+ int pfd[2];
+
+ if (pipe(pfd) < 0)
+ return Nullfp;
+ while ((forkprocess = fork()) == -1) {
+ if (errno != EAGAIN)
+ return Nullfp;
+ sleep(5);
+ }
+ if (*mode == 'w') {
+ if (forkprocess) {
+ close(pfd[0]);
+ return fdopen(pfd[1],"w");
+ }
+ else {
+ close(pfd[1]);
+ close(0);
+ dup(pfd[0]); /* substitute our pipe for stdin */
+ close(pfd[0]);
+ return Nullfp;
+ }
+ }
+ else {
+ if (forkprocess) {
+ close(pfd[1]);
+ return fdopen(pfd[0],"r");
+ }
+ else {
+ close(pfd[0]);
+ close(1);
+ if (dup(pfd[1]) == 0)
+ dup(pfd[1]); /* substitute our pipe for stdout */
+ close(pfd[1]);
+ return Nullfp;
+ }
+ }
+}
+
bool
do_open(stab,name)
STAB *stab;
@@ -318,27 +463,61 @@ register char *name;
FILE *fp;
int len = strlen(name);
register STIO *stio = stab->stab_io;
+ char *myname = savestr(name);
+ int result;
+ int fd;
+ name = myname;
+ forkprocess = 1; /* assume true if no fork */
while (len && isspace(name[len-1]))
name[--len] = '\0';
if (!stio)
stio = stab->stab_io = stio_new();
if (stio->fp) {
+ fd = fileno(stio->fp);
if (stio->type == '|')
- pclose(stio->fp);
+ result = pclose(stio->fp);
else if (stio->type != '-')
- fclose(stio->fp);
+ result = fclose(stio->fp);
+ else
+ result = 0;
+ if (result == EOF && fd > 2)
+ fprintf(stderr,"Warning: unable to close filehandle %s properly.\n",
+ stab->stab_name);
stio->fp = Nullfp;
}
stio->type = *name;
if (*name == '|') {
for (name++; isspace(*name); name++) ;
- fp = popen(name,"w");
+ if (strNE(name,"-"))
+ fp = popen(name,"w");
+ else {
+ fp = forkopen(name,"w");
+ stio->subprocess = forkprocess;
+ stio->type = '%';
+ }
}
else if (*name == '>' && name[1] == '>') {
+ stio->type = 'a';
for (name += 2; isspace(*name); name++) ;
fp = fopen(name,"a");
}
+ else if (*name == '>' && name[1] == '&') {
+ for (name += 2; isspace(*name); name++) ;
+ if (isdigit(*name))
+ fd = atoi(name);
+ else {
+ stab = stabent(name,FALSE);
+ if (stab->stab_io && stab->stab_io->fp) {
+ fd = fileno(stab->stab_io->fp);
+ stio->type = stab->stab_io->type;
+ }
+ else
+ fd = -1;
+ }
+ fp = fdopen(dup(fd),stio->type == 'a' ? "a" :
+ (stio->type == '<' ? "r" : "w") );
+ }
else if (*name == '>') {
for (name++; isspace(*name); name++) ;
if (strEQ(name,"-")) {
@@ -363,8 +542,15 @@ register char *name;
while (len && isspace(name[len-1]))
name[--len] = '\0';
for (; isspace(*name); name++) ;
- fp = popen(name,"r");
- stio->type = '|';
+ if (strNE(name,"-")) {
+ fp = popen(name,"r");
+ stio->type = '|';
+ }
+ else {
+ fp = forkopen(name,"r");
+ stio->subprocess = forkprocess;
+ stio->type = '%';
+ }
}
else {
stio->type = '<';
@@ -377,9 +563,11 @@ register char *name;
fp = fopen(name,"r");
}
}
+ safefree(myname);
if (!fp)
return FALSE;
- if (stio->type != '|' && stio->type != '-') {
+ if (stio->type &&
+ stio->type != '|' && stio->type != '-' && stio->type != '%') {
if (fstat(fileno(fp),&statbuf) < 0) {
fclose(fp);
return FALSE;
@@ -400,14 +588,18 @@ register STAB *stab;
{
register STR *str;
char *oldname;
+ int filemode,fileuid,filegid;
- while (alen(stab->stab_array) >= 0L) {
+ while (alen(stab->stab_array) >= 0) {
str = ashift(stab->stab_array);
str_sset(stab->stab_val,str);
STABSET(stab->stab_val);
oldname = str_get(stab->stab_val);
if (do_open(stab,oldname)) {
if (inplace) {
+ filemode = statbuf.st_mode;
+ fileuid = statbuf.st_uid;
+ filegid = statbuf.st_gid;
if (*inplace) {
str_cat(str,inplace);
#ifdef RENAME
@@ -418,9 +610,23 @@ register STAB *stab;
UNLINK(oldname);
#endif
}
+ else {
+ UNLINK(oldname);
+ }
sprintf(tokenbuf,">%s",oldname);
+ errno = 0; /* in case sprintf set errno */
do_open(argvoutstab,tokenbuf);
defoutstab = argvoutstab;
+#ifdef FCHMOD
+ fchmod(fileno(argvoutstab->stab_io->fp),filemode);
+#else
+ chmod(oldname,filemode);
+#endif
+#ifdef FCHOWN
+ fchown(fileno(argvoutstab->stab_io->fp),fileuid,filegid);
+#else
+ chown(oldname,fileuid,filegid);
+#endif
}
str_free(str);
return stab->stab_io->fp;
@@ -443,16 +649,30 @@ bool explicit;
{
bool retval = FALSE;
register STIO *stio = stab->stab_io;
+ int status;
+ int tmp;
- if (!stio) /* never opened */
+ if (!stio) { /* never opened */
+ if (dowarn && explicit)
+ warn("Close on unopened file <%s>",stab->stab_name);
return FALSE;
+ }
if (stio->fp) {
if (stio->type == '|')
retval = (pclose(stio->fp) >= 0);
else if (stio->type == '-')
retval = TRUE;
- else
+ else {
retval = (fclose(stio->fp) != EOF);
+ if (stio->type == '%' && stio->subprocess) {
+ while ((tmp = wait(&status)) != stio->subprocess && tmp != -1)
+ ;
+ if (tmp == -1)
+ statusvalue = -1;
+ else
+ statusvalue = (unsigned)status & 0xffff;
+ }
+ }
stio->fp = Nullfp;
}
if (explicit)
@@ -468,10 +688,11 @@ STAB *stab;
register STIO *stio;
int ch;
- if (!stab)
- return TRUE;
+ if (!stab) /* eof() */
+ stio = argvstab->stab_io;
+ else
+ stio = stab->stab_io;
- stio = stab->stab_io;
if (!stio)
return TRUE;
@@ -487,8 +708,8 @@ STAB *stab;
ungetc(ch, stio->fp);
return FALSE;
}
- if (stio->flags & IOF_ARGV) { /* not necessarily a real EOF yet? */
- if (!nextargv(stab)) /* get another fp handy */
+ if (!stab) { /* not necessarily a real EOF yet? */
+ if (!nextargv(argvstab)) /* get another fp handy */
return TRUE;
}
else
@@ -502,16 +723,20 @@ do_tell(stab)
STAB *stab;
{
register STIO *stio;
- int ch;
if (!stab)
- return -1L;
+ goto phooey;
stio = stab->stab_io;
if (!stio || !stio->fp)
- return -1L;
+ goto phooey;
return ftell(stio->fp);
+
+phooey:
+ if (dowarn)
+ warn("tell() on unopened file");
+ return -1L;
}
bool
@@ -523,19 +748,113 @@ int whence;
register STIO *stio;
if (!stab)
- return FALSE;
+ goto nuts;
stio = stab->stab_io;
if (!stio || !stio->fp)
- return FALSE;
+ goto nuts;
return fseek(stio->fp, pos, whence) >= 0;
+
+nuts:
+ if (dowarn)
+ warn("seek() on unopened file");
+ return FALSE;
}
-do_stat(arg,sarg,retary)
+static CMD *sortcmd;
+static STAB *firststab = Nullstab;
+static STAB *secondstab = Nullstab;
+
+do_sort(arg,stab,retary,sarg,ptrmaxsarg,sargoff,cushion)
register ARG *arg;
+STAB *stab;
+STR ***retary;
register STR **sarg;
+int *ptrmaxsarg;
+int sargoff;
+int cushion;
+{
+ STR **tmpary; /* must not be register */
+ register STR **elem;
+ register bool retval;
+ register int max;
+ register int i;
+ int sortcmp();
+ int sortsub();
+ STR *oldfirst;
+ STR *oldsecond;
+
+ (void)eval(arg[1].arg_ptr.arg_arg,&tmpary,-1);
+ max = (int)str_gnum(*tmpary);
+
+ if (retary) {
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (max+2+cushion+sargoff)*sizeof(STR*)) + sargoff;
+ for (i = 1; i <= max; i++)
+ sarg[i] = tmpary[i];
+ *retary = sarg;
+ if (max > 1) {
+ if (stab->stab_sub && (sortcmd = stab->stab_sub->cmd)) {
+ if (!firststab) {
+ firststab = stabent("a",TRUE);
+ secondstab = stabent("b",TRUE);
+ }
+ oldfirst = firststab->stab_val;
+ oldsecond = secondstab->stab_val;
+ qsort((char*)(sarg+1),max,sizeof(STR*),sortsub);
+ firststab->stab_val = oldfirst;
+ secondstab->stab_val = oldsecond;
+ }
+ else
+ qsort((char*)(sarg+1),max,sizeof(STR*),sortcmp);
+ }
+ while (max > 0 && !sarg[max])
+ max--;
+ *ptrmaxsarg = max + sargoff;
+ }
+ safefree((char*)tmpary);
+ return max;
+}
+
+int
+sortcmp(str1,str2)
+STR **str1;
+STR **str2;
+{
+ char *tmps;
+
+ if (!*str1)
+ return -1;
+ if (!*str2)
+ return 1;
+ tmps = str_get(*str1);
+ return strcmp(tmps,str_get(*str2));
+}
+
+int
+sortsub(str1,str2)
+STR **str1;
+STR **str2;
+{
+ STR *str;
+
+ if (!*str1)
+ return -1;
+ if (!*str2)
+ return 1;
+ firststab->stab_val = *str1;
+ secondstab->stab_val = *str2;
+ return (int)str_gnum(cmd_exec(sortcmd));
+}
+
+do_stat(arg,retary,sarg,ptrmaxsarg,sargoff,cushion)
+register ARG *arg;
STR ***retary;
+register STR **sarg;
+int *ptrmaxsarg;
+int sargoff;
+int cushion;
{
register ARRAY *ary;
static ARRAY *myarray = Null(ARRAY*);
@@ -544,7 +863,7 @@ STR ***retary;
ary = myarray;
if (!ary)
- myarray = ary = anew();
+ myarray = ary = anew(Nullstab);
ary->ary_fill = -1;
if (arg[1].arg_type == A_LVAL) {
tmpstab = arg[1].arg_ptr.arg_stab;
@@ -578,9 +897,9 @@ STR ***retary;
apush(ary,str_make(""));
#endif
}
- sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
- sarg[0] = Nullstr;
- sarg[max+1] = Nullstr;
+ *ptrmaxsarg = max + sargoff;
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (max+2+cushion+sargoff)*sizeof(STR*)) + sargoff;
for (i = 1; i <= max; i++)
sarg[i] = afetch(ary,i-1);
*retary = sarg;
@@ -588,32 +907,38 @@ STR ***retary;
return max;
}
-do_tms(retary)
+do_tms(retary,sarg,ptrmaxsarg,sargoff,cushion)
STR ***retary;
+STR **sarg;
+int *ptrmaxsarg;
+int sargoff;
+int cushion;
{
register ARRAY *ary;
static ARRAY *myarray = Null(ARRAY*);
- register STR **sarg;
int max = 4;
register int i;
ary = myarray;
if (!ary)
- myarray = ary = anew();
+ myarray = ary = anew(Nullstab);
ary->ary_fill = -1;
- if (times(&timesbuf) < 0)
- max = 0;
+ times(&timesbuf);
+
+#ifndef HZ
+#define HZ 60
+#endif
if (retary) {
if (max) {
- apush(ary,str_nmake(((double)timesbuf.tms_utime)/60.0));
- apush(ary,str_nmake(((double)timesbuf.tms_stime)/60.0));
- apush(ary,str_nmake(((double)timesbuf.tms_cutime)/60.0));
- apush(ary,str_nmake(((double)timesbuf.tms_cstime)/60.0));
- }
- sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
- sarg[0] = Nullstr;
- sarg[max+1] = Nullstr;
+ apush(ary,str_nmake(((double)timesbuf.tms_utime)/HZ));
+ apush(ary,str_nmake(((double)timesbuf.tms_stime)/HZ));
+ apush(ary,str_nmake(((double)timesbuf.tms_cutime)/HZ));
+ apush(ary,str_nmake(((double)timesbuf.tms_cstime)/HZ));
+ }
+ *ptrmaxsarg = max + sargoff;
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (max+2+cushion+sargoff)*sizeof(STR*)) + sargoff;
for (i = 1; i <= max; i++)
sarg[i] = afetch(ary,i-1);
*retary = sarg;
@@ -621,20 +946,22 @@ STR ***retary;
return max;
}
-do_time(tmbuf,retary)
+do_time(tmbuf,retary,sarg,ptrmaxsarg,sargoff,cushion)
struct tm *tmbuf;
STR ***retary;
+STR **sarg;
+int *ptrmaxsarg;
+int sargoff;
+int cushion;
{
register ARRAY *ary;
static ARRAY *myarray = Null(ARRAY*);
- register STR **sarg;
int max = 9;
register int i;
- STR *str;
ary = myarray;
if (!ary)
- myarray = ary = anew();
+ myarray = ary = anew(Nullstab);
ary->ary_fill = -1;
if (!tmbuf)
max = 0;
@@ -651,9 +978,9 @@ STR ***retary;
apush(ary,str_nmake((double)tmbuf->tm_yday));
apush(ary,str_nmake((double)tmbuf->tm_isdst));
}
- sarg = (STR**)safemalloc((max+2)*sizeof(STR*));
- sarg[0] = Nullstr;
- sarg[max+1] = Nullstr;
+ *ptrmaxsarg = max + sargoff;
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (max+2+cushion+sargoff)*sizeof(STR*)) + sargoff;
for (i = 1; i <= max; i++)
sarg[i] = afetch(ary,i-1);
*retary = sarg;
@@ -688,6 +1015,7 @@ register STR **sarg;
for (t++; *sarg && *t && t != s; t++) {
switch (*t) {
case '\0':
+ t--;
break;
case '%':
ch = *(++t);
@@ -702,7 +1030,7 @@ register STR **sarg;
case 'D': case 'X': case 'O':
dolong = TRUE;
/* FALL THROUGH */
- case 'd': case 'x': case 'o': case 'c':
+ case 'd': case 'x': case 'o': case 'c': case 'u':
ch = *(++t);
*t = '\0';
if (dolong)
@@ -722,7 +1050,12 @@ register STR **sarg;
case 's':
ch = *(++t);
*t = '\0';
- sprintf(buf,s,str_get(*(sarg++)));
+ if (strEQ(s,"%s")) { /* some printfs fail on >128 chars */
+ *buf = '\0';
+ str_scat(str,*(sarg++)); /* so handle simple case */
+ }
+ else
+ sprintf(buf,s,str_get(*(sarg++)));
s = t;
*(t--) = ch;
break;
@@ -736,13 +1069,22 @@ register STR **sarg;
}
bool
-do_print(s,fp)
-char *s;
+do_print(str,fp)
+register STR *str;
FILE *fp;
{
- if (!fp || !s)
+ if (!fp) {
+ if (dowarn)
+ warn("print to unopened file");
+ return FALSE;
+ }
+ if (!str)
return FALSE;
- fputs(s,fp);
+ if (ofmt &&
+ ((str->str_nok && str->str_nval != 0.0) || str_gnum(str) != 0.0) )
+ fprintf(fp, ofmt, str->str_nval);
+ else
+ fputs(str_get(str),fp);
return TRUE;
}
@@ -754,30 +1096,30 @@ register FILE *fp;
STR **tmpary; /* must not be register */
register STR **elem;
register bool retval;
- double value;
+ register int items;
- (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
+ if (!fp) {
+ if (dowarn)
+ warn("print to unopened file");
+ return FALSE;
+ }
+ (void)eval(arg[1].arg_ptr.arg_arg,&tmpary,-1);
+ items = (int)str_gnum(*tmpary);
if (arg->arg_type == O_PRTF) {
- do_sprintf(arg->arg_ptr.arg_str,32767,tmpary);
- retval = do_print(str_get(arg->arg_ptr.arg_str),fp);
+ do_sprintf(arg->arg_ptr.arg_str,items,tmpary);
+ retval = do_print(arg->arg_ptr.arg_str,fp);
}
else {
retval = FALSE;
- for (elem = tmpary+1; *elem; elem++) {
+ for (elem = tmpary+1; items > 0; items--,elem++) {
if (retval && ofs)
- do_print(ofs, fp);
- if (ofmt && fp) {
- if ((*elem)->str_nok || str_gnum(*elem) != 0.0)
- fprintf(fp, ofmt, str_gnum(*elem));
- retval = TRUE;
- }
- else
- retval = do_print(str_get(*elem), fp);
+ fputs(ofs, fp);
+ retval = do_print(*elem, fp);
if (!retval)
break;
}
if (ors)
- retval = do_print(ors, fp);
+ fputs(ors, fp);
}
safefree((char*)tmpary);
return retval;
@@ -790,18 +1132,19 @@ register ARG *arg;
STR **tmpary; /* must not be register */
register STR **elem;
register char **a;
- register int i;
+ register int items;
char **argv;
- (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
- i = 0;
- for (elem = tmpary+1; *elem; elem++)
- i++;
- if (i) {
- argv = (char**)safemalloc((i+1)*sizeof(char*));
+ (void)eval(arg[1].arg_ptr.arg_arg,&tmpary,-1);
+ items = (int)str_gnum(*tmpary);
+ if (items) {
+ argv = (char**)safemalloc((items+1)*sizeof(char*));
a = argv;
- for (elem = tmpary+1; *elem; elem++) {
- *a++ = str_get(*elem);
+ for (elem = tmpary+1; items > 0; items--,elem++) {
+ if (*elem)
+ *a++ = str_get(*elem);
+ else
+ *a++ = "";
}
*a = Nullch;
execvp(argv[0],argv);
@@ -812,19 +1155,19 @@ register ARG *arg;
}
bool
-do_exec(cmd)
-char *cmd;
+do_exec(str)
+STR *str;
{
- STR **tmpary; /* must not be register */
register char **a;
register char *s;
char **argv;
+ char *cmd = str_get(str);
/* see if there are shell metacharacters in it */
for (s = cmd; *s; s++) {
if (*s != ' ' && !isalpha(*s) && index("$&*(){}[]'\";\\|?<>~`",*s)) {
- execl("/bin/sh","sh","-c",cmd,0);
+ execl("/bin/sh","sh","-c",cmd,(char*)0);
return FALSE;
}
}
@@ -854,11 +1197,14 @@ register ARRAY *ary;
STR **tmpary; /* must not be register */
register STR **elem;
register STR *str = &str_no;
+ register int items;
- (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
- for (elem = tmpary+1; *elem; elem++) {
+ (void)eval(arg[1].arg_ptr.arg_arg,&tmpary,-1);
+ items = (int)str_gnum(*tmpary);
+ for (elem = tmpary+1; items > 0; items--,elem++) {
str = str_new(0);
- str_sset(str,*elem);
+ if (*elem)
+ str_sset(str,*elem);
apush(ary,str);
}
safefree((char*)tmpary);
@@ -873,17 +1219,16 @@ register ARRAY *ary;
register STR **elem;
register STR *str = &str_no;
register int i;
+ register int items;
- (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
- i = 0;
- for (elem = tmpary+1; *elem; elem++)
- i++;
- aunshift(ary,i);
+ (void)eval(arg[1].arg_ptr.arg_arg,&tmpary,-1);
+ items = (int)str_gnum(*tmpary);
+ aunshift(ary,items);
i = 0;
- for (elem = tmpary+1; *elem; elem++) {
+ for (elem = tmpary+1; i < items; i++,elem++) {
str = str_new(0);
str_sset(str,*elem);
- astore(ary,i++,str);
+ astore(ary,i,str);
}
safefree((char*)tmpary);
}
@@ -895,69 +1240,133 @@ STR **sarg;
{
STR **tmpary; /* must not be register */
register STR **elem;
- register int i;
+ register int items;
register int val;
register int val2;
+ char *s;
- if (sarg)
+ if (sarg) {
tmpary = sarg;
- else
- (void)eval(arg[1].arg_ptr.arg_arg,&tmpary);
- i = 0;
- for (elem = tmpary+1; *elem; elem++)
- i++;
+ items = 0;
+ for (elem = tmpary+1; *elem; elem++)
+ items++;
+ }
+ else {
+ (void)eval(arg[1].arg_ptr.arg_arg,&tmpary,-1);
+ items = (int)str_gnum(*tmpary);
+ }
switch (type) {
case O_CHMOD:
- if (--i > 0) {
+ if (--items > 0) {
val = (int)str_gnum(tmpary[1]);
for (elem = tmpary+2; *elem; elem++)
if (chmod(str_get(*elem),val))
- i--;
+ items--;
}
break;
case O_CHOWN:
- if (i > 2) {
- i -= 2;
+ if (items > 2) {
+ items -= 2;
val = (int)str_gnum(tmpary[1]);
val2 = (int)str_gnum(tmpary[2]);
for (elem = tmpary+3; *elem; elem++)
if (chown(str_get(*elem),val,val2))
- i--;
+ items--;
}
else
- i = 0;
+ items = 0;
break;
case O_KILL:
- if (--i > 0) {
+ if (--items > 0) {
val = (int)str_gnum(tmpary[1]);
- if (val < 0)
+ if (val < 0) {
val = -val;
- for (elem = tmpary+2; *elem; elem++)
- if (kill(atoi(str_get(*elem)),val))
- i--;
+ for (elem = tmpary+2; *elem; elem++)
+#ifdef KILLPG
+ if (killpg((int)(str_gnum(*elem)),val)) /* BSD */
+#else
+ if (kill(-(int)(str_gnum(*elem)),val)) /* SYSV */
+#endif
+ items--;
+ }
+ else {
+ for (elem = tmpary+2; *elem; elem++)
+ if (kill((int)(str_gnum(*elem)),val))
+ items--;
+ }
}
break;
case O_UNLINK:
- for (elem = tmpary+1; *elem; elem++)
- if (UNLINK(str_get(*elem)))
- i--;
+ for (elem = tmpary+1; *elem; elem++) {
+ s = str_get(*elem);
+ if (euid || unsafe) {
+ if (UNLINK(s))
+ items--;
+ }
+ else { /* don't let root wipe out directories without -U */
+ if (stat(s,&statbuf) < 0 ||
+ (statbuf.st_mode & S_IFMT) == S_IFDIR )
+ items--;
+ else {
+ if (UNLINK(s))
+ items--;
+ }
+ }
+ }
+ break;
+ case O_UTIME:
+ if (items > 2) {
+ struct {
+ long atime,
+ mtime;
+ } utbuf;
+
+ utbuf.atime = (long)str_gnum(tmpary[1]); /* time accessed */
+ utbuf.mtime = (long)str_gnum(tmpary[2]); /* time modified */
+ items -= 2;
+ for (elem = tmpary+3; *elem; elem++)
+ if (utime(str_get(*elem),&utbuf))
+ items--;
+ }
+ else
+ items = 0;
break;
}
if (!sarg)
safefree((char*)tmpary);
- return i;
+ return items;
}
STR *
do_subr(arg,sarg)
register ARG *arg;
-register char **sarg;
+register STR **sarg;
{
+ register SUBR *sub;
ARRAY *savearray;
STR *str;
+ STAB *stab;
+ char *oldfile = filename;
+ int oldsave = savestack->ary_fill;
+ int oldtmps_base = tmps_base;
+ if (arg[2].arg_type == A_WORD)
+ stab = arg[2].arg_ptr.arg_stab;
+ else
+ stab = stabent(str_get(arg[2].arg_ptr.arg_stab->stab_val),TRUE);
+ if (!stab) {
+ if (dowarn)
+ warn("Undefined subroutine called");
+ return &str_no;
+ }
+ sub = stab->stab_sub;
+ if (!sub) {
+ if (dowarn)
+ warn("Undefined subroutine \"%s\" called", stab->stab_name);
+ return &str_no;
+ }
savearray = defstab->stab_array;
- defstab->stab_array = anew();
+ defstab->stab_array = anew(defstab);
if (arg[1].arg_flags & AF_SPECIAL)
(void)do_push(arg,defstab->stab_array);
else if (arg[1].arg_type != A_NULL) {
@@ -965,16 +1374,34 @@ register char **sarg;
str_sset(str,sarg[1]);
apush(defstab->stab_array,str);
}
- str = cmd_exec(arg[2].arg_ptr.arg_stab->stab_sub);
+ sub->depth++;
+ if (sub->depth >= 2) { /* save temporaries on recursion? */
+ if (sub->depth == 100 && dowarn)
+ warn("Deep recursion on subroutine \"%s\"",stab->stab_name);
+ savelist(sub->tosave->ary_array,sub->tosave->ary_fill);
+ }
+ filename = sub->filename;
+ tmps_base = tmps_max;
+
+ str = cmd_exec(sub->cmd); /* so do it already */
+
+ sub->depth--; /* assuming no longjumps out of here */
afree(defstab->stab_array); /* put back old $_[] */
defstab->stab_array = savearray;
+ filename = oldfile;
+ tmps_base = oldtmps_base;
+ if (savestack->ary_fill > oldsave) {
+ str = str_static(str); /* in case restore wipes old str */
+ restorelist(oldsave);
+ }
return str;
}
void
-do_assign(retstr,arg)
+do_assign(retstr,arg,sarg)
STR *retstr;
register ARG *arg;
+register STR **sarg;
{
STR **tmpary; /* must not be register */
register ARG *larg = arg[1].arg_ptr.arg_arg;
@@ -982,60 +1409,76 @@ register ARG *arg;
register STR *str;
register ARRAY *ary;
register int i;
- register int lasti;
- char *s;
+ register int items;
+ STR *tmpstr;
- (void)eval(arg[2].arg_ptr.arg_arg,&tmpary);
+ if (arg[2].arg_flags & AF_SPECIAL) {
+ (void)eval(arg[2].arg_ptr.arg_arg,&tmpary,-1);
+ items = (int)str_gnum(*tmpary);
+ }
+ else {
+ tmpary = sarg;
+ sarg[1] = sarg[2];
+ sarg[2] = Nullstr;
+ items = 1;
+ }
- if (arg->arg_flags & AF_COMMON) {
+ if (arg->arg_flags & AF_COMMON) { /* always true currently, alas */
if (*(tmpary+1)) {
- for (elem=tmpary+2; *elem; elem++) {
+ for (i=2,elem=tmpary+2; i <= items; i++,elem++) {
*elem = str_static(*elem);
}
}
}
if (larg->arg_type == O_LIST) {
- lasti = larg->arg_len;
- for (i=1,elem=tmpary+1; i <= lasti; i++) {
- if (*elem)
- s = str_get(*(elem++));
- else
- s = "";
+ for (i=1,elem=tmpary+1; i <= larg->arg_len; i++) {
switch (larg[i].arg_type) {
case A_STAB:
case A_LVAL:
str = STAB_STR(larg[i].arg_ptr.arg_stab);
break;
case A_LEXPR:
- str = eval(larg[i].arg_ptr.arg_arg,Null(STR***));
+ str = eval(larg[i].arg_ptr.arg_arg,Null(STR***),-1);
break;
}
- str_set(str,s);
+ if (larg->arg_flags & AF_LOCAL) {
+ apush(savestack,str); /* save pointer */
+ tmpstr = str_new(0);
+ str_sset(tmpstr,str);
+ apush(savestack,tmpstr); /* save value */
+ }
+ if (*elem)
+ str_sset(str,*(elem++));
+ else
+ str_set(str,"");
STABSET(str);
}
- i = elem - tmpary - 1;
}
else { /* should be an array name */
ary = larg[1].arg_ptr.arg_stab->stab_array;
- for (i=0,elem=tmpary+1; *elem; i++) {
+ for (i=0,elem=tmpary+1; i < items; i++) {
str = str_new(0);
if (*elem)
str_sset(str,*(elem++));
astore(ary,i,str);
}
- ary->ary_fill = i - 1; /* they can get the extra ones back by */
- } /* setting an element larger than old fill */
- str_numset(retstr,(double)i);
+ ary->ary_fill = items - 1;/* they can get the extra ones back by */
+ } /* setting $#ary larger than old fill */
+ str_numset(retstr,(double)items);
STABSET(retstr);
- safefree((char*)tmpary);
+ if (tmpary != sarg);
+ safefree((char*)tmpary);
}
int
-do_kv(hash,kv,sarg,retary)
+do_kv(hash,kv,retary,sarg,ptrmaxsarg,sargoff,cushion)
HASH *hash;
int kv;
-register STR **sarg;
STR ***retary;
+register STR **sarg;
+int *ptrmaxsarg;
+int sargoff;
+int cushion;
{
register ARRAY *ary;
int max = 0;
@@ -1045,7 +1488,7 @@ STR ***retary;
ary = myarray;
if (!ary)
- myarray = ary = anew();
+ myarray = ary = anew(Nullstab);
ary->ary_fill = -1;
hiterinit(hash);
@@ -1057,9 +1500,9 @@ STR ***retary;
apush(ary,str_make(str_get(hiterval(entry))));
}
if (retary) { /* array wanted */
- sarg = (STR**)saferealloc((char*)sarg,(max+2)*sizeof(STR*));
- sarg[0] = Nullstr;
- sarg[max+1] = Nullstr;
+ *ptrmaxsarg = max + sargoff;
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (max+2+cushion+sargoff)*sizeof(STR*)) + sargoff;
for (i = 1; i <= max; i++)
sarg[i] = afetch(ary,i-1);
*retary = sarg;
@@ -1068,10 +1511,13 @@ STR ***retary;
}
STR *
-do_each(hash,sarg,retary)
+do_each(hash,retary,sarg,ptrmaxsarg,sargoff,cushion)
HASH *hash;
-register STR **sarg;
STR ***retary;
+STR **sarg;
+int *ptrmaxsarg;
+int sargoff;
+int cushion;
{
static STR *mystr = Nullstr;
STR *retstr;
@@ -1084,17 +1530,18 @@ STR ***retary;
if (retary) { /* array wanted */
if (entry) {
- sarg = (STR**)saferealloc((char*)sarg,4*sizeof(STR*));
- sarg[0] = Nullstr;
- sarg[3] = Nullstr;
+ *ptrmaxsarg = 2 + sargoff;
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (2+2+cushion+sargoff)*sizeof(STR*)) + sargoff;
sarg[1] = mystr = str_make(hiterkey(entry));
retstr = sarg[2] = hiterval(entry);
*retary = sarg;
}
else {
- sarg = (STR**)saferealloc((char*)sarg,2*sizeof(STR*));
- sarg[0] = Nullstr;
- sarg[1] = retstr = Nullstr;
+ *ptrmaxsarg = sargoff;
+ sarg = (STR**)saferealloc((char*)(sarg - sargoff),
+ (2+cushion+sargoff)*sizeof(STR*)) + sargoff;
+ retstr = Nullstr;
*retary = sarg;
}
}
@@ -1104,10 +1551,150 @@ STR ***retary;
return retstr;
}
-init_eval()
+int
+mystat(arg,str)
+ARG *arg;
+STR *str;
{
- register int i;
+ STIO *stio;
+
+ if (arg[1].arg_flags & AF_SPECIAL) {
+ stio = arg[1].arg_ptr.arg_stab->stab_io;
+ if (stio && stio->fp)
+ return fstat(fileno(stio->fp), &statbuf);
+ else {
+ if (dowarn)
+ warn("Stat on unopened file <%s>",
+ arg[1].arg_ptr.arg_stab->stab_name);
+ return -1;
+ }
+ }
+ else
+ return stat(str_get(str),&statbuf);
+}
+
+STR *
+do_fttext(arg,str)
+register ARG *arg;
+STR *str;
+{
+ int i;
+ int len;
+ int odd = 0;
+ STDCHAR tbuf[512];
+ register STDCHAR *s;
+ register STIO *stio;
+ if (arg[1].arg_flags & AF_SPECIAL) {
+ stio = arg[1].arg_ptr.arg_stab->stab_io;
+ if (stio && stio->fp) {
+#ifdef STDSTDIO
+ if (stio->fp->_cnt <= 0) {
+ i = getc(stio->fp);
+ ungetc(i,stio->fp);
+ }
+ if (stio->fp->_cnt <= 0) /* null file is anything */
+ return &str_yes;
+ len = stio->fp->_cnt + (stio->fp->_ptr - stio->fp->_base);
+ s = stio->fp->_base;
+#else
+ fatal("-T and -B not implemented on filehandles\n");
+#endif
+ }
+ else {
+ if (dowarn)
+ warn("Test on unopened file <%s>",
+ arg[1].arg_ptr.arg_stab->stab_name);
+ return &str_no;
+ }
+ }
+ else {
+ i = open(str_get(str),0);
+ if (i < 0)
+ return &str_no;
+ len = read(i,tbuf,512);
+ if (len <= 0) /* null file is anything */
+ return &str_yes;
+ close(i);
+ s = tbuf;
+ }
+
+ /* now scan s to look for textiness */
+
+ for (i = 0; i < len; i++,s++) {
+ if (!*s) { /* null never allowed in text */
+ odd += len;
+ break;
+ }
+ else if (*s & 128)
+ odd++;
+ else if (*s < 32 &&
+ *s != '\n' && *s != '\r' && *s != '\b' &&
+ *s != '\t' && *s != '\f' && *s != 27)
+ odd++;
+ }
+
+ if ((odd * 10 > len) == (arg->arg_type == O_FTTEXT)) /* allow 10% odd */
+ return &str_no;
+ else
+ return &str_yes;
+}
+
+int
+do_study(str)
+STR *str;
+{
+ register char *s = str_get(str);
+ register int pos = str->str_cur;
+ register int ch;
+ register int *sfirst;
+ register int *snext;
+ static int maxscream = -1;
+ static STR *lastscream = Nullstr;
+
+ if (lastscream && lastscream->str_pok == 5)
+ lastscream->str_pok &= ~4;
+ lastscream = str;
+ if (pos <= 0)
+ return 0;
+ if (pos > maxscream) {
+ if (maxscream < 0) {
+ maxscream = pos + 80;
+ screamfirst = (int*)safemalloc((MEM_SIZE)(256 * sizeof(int)));
+ screamnext = (int*)safemalloc((MEM_SIZE)(maxscream * sizeof(int)));
+ }
+ else {
+ maxscream = pos + pos / 4;
+ screamnext = (int*)saferealloc((char*)screamnext,
+ (MEM_SIZE)(maxscream * sizeof(int)));
+ }
+ }
+
+ sfirst = screamfirst;
+ snext = screamnext;
+
+ if (!sfirst || !snext)
+ fatal("do_study: out of memory");
+
+ for (ch = 256; ch; --ch)
+ *sfirst++ = -1;
+ sfirst -= 256;
+
+ while (--pos >= 0) {
+ ch = s[pos];
+ if (sfirst[ch] >= 0)
+ snext[pos] = sfirst[ch] - pos;
+ else
+ snext[pos] = -pos;
+ sfirst[ch] = pos;
+ }
+
+ str->str_pok |= 4;
+ return 1;
+}
+
+init_eval()
+{
#define A(e1,e2,e3) (e1+(e2<<1)+(e3<<2))
opargs[O_ITEM] = A(1,0,0);
opargs[O_ITEM2] = A(0,0,0);
@@ -1165,15 +1752,15 @@ init_eval()
opargs[O_SEQ] = A(1,1,0);
opargs[O_SNE] = A(1,1,0);
opargs[O_SUBR] = A(1,0,0);
- opargs[O_PRINT] = A(1,0,0);
+ opargs[O_PRINT] = A(1,1,0);
opargs[O_CHDIR] = A(1,0,0);
opargs[O_DIE] = A(1,0,0);
opargs[O_EXIT] = A(1,0,0);
opargs[O_RESET] = A(1,0,0);
opargs[O_LIST] = A(0,0,0);
- opargs[O_EOF] = A(0,0,0);
- opargs[O_TELL] = A(0,0,0);
- opargs[O_SEEK] = A(0,1,1);
+ opargs[O_EOF] = A(1,0,0);
+ opargs[O_TELL] = A(1,0,0);
+ opargs[O_SEEK] = A(1,1,1);
opargs[O_LAST] = A(1,0,0);
opargs[O_NEXT] = A(1,0,0);
opargs[O_REDO] = A(1,0,0);
@@ -1189,7 +1776,7 @@ init_eval()
opargs[O_LOG] = A(1,0,0);
opargs[O_SQRT] = A(1,0,0);
opargs[O_INT] = A(1,0,0);
- opargs[O_PRTF] = A(1,0,0);
+ opargs[O_PRTF] = A(1,1,0);
opargs[O_ORD] = A(1,0,0);
opargs[O_SLEEP] = A(1,0,0);
opargs[O_FLIP] = A(1,0,0);
@@ -1213,956 +1800,35 @@ init_eval()
opargs[O_LINK] = A(1,1,0);
opargs[O_REPEAT] = A(1,1,0);
opargs[O_EVAL] = A(1,0,0);
-}
-
-#ifdef VOIDSIG
-static void (*ihand)();
-static void (*qhand)();
-#else
-static int (*ihand)();
-static int (*qhand)();
-#endif
-
-STR *
-eval(arg,retary)
-register ARG *arg;
-STR ***retary; /* where to return an array to, null if nowhere */
-{
- register STR *str;
- register int anum;
- register int optype;
- register int maxarg;
- double value;
- STR *quicksarg[5];
- register STR **sarg = quicksarg;
- register char *tmps;
- char *tmps2;
- int argflags;
- long tmplong;
- FILE *fp;
- STR *tmpstr;
- FCMD *form;
- STAB *stab;
- ARRAY *ary;
- bool assigning = FALSE;
- double exp(), log(), sqrt(), modf();
- char *crypt(), *getenv();
-
- if (!arg)
- return &str_no;
- str = arg->arg_ptr.arg_str;
- optype = arg->arg_type;
- maxarg = arg->arg_len;
- if (maxarg > 3 || retary) {
- sarg = (STR **)safemalloc((maxarg+2) * sizeof(STR*));
- }
-#ifdef DEBUGGING
- if (debug & 8) {
- deb("%s (%lx) %d args:\n",opname[optype],arg,maxarg);
- }
- debname[dlevel] = opname[optype][0];
- debdelim[dlevel++] = ':';
-#endif
- for (anum = 1; anum <= maxarg; anum++) {
- argflags = arg[anum].arg_flags;
- if (argflags & AF_SPECIAL)
- continue;
- re_eval:
- switch (arg[anum].arg_type) {
- default:
- sarg[anum] = &str_no;
-#ifdef DEBUGGING
- tmps = "NULL";
-#endif
- break;
- case A_EXPR:
-#ifdef DEBUGGING
- if (debug & 8) {
- tmps = "EXPR";
- deb("%d.EXPR =>\n",anum);
- }
-#endif
- sarg[anum] = eval(arg[anum].arg_ptr.arg_arg, Null(STR***));
- break;
- case A_CMD:
-#ifdef DEBUGGING
- if (debug & 8) {
- tmps = "CMD";
- deb("%d.CMD (%lx) =>\n",anum,arg[anum].arg_ptr.arg_cmd);
- }
-#endif
- sarg[anum] = cmd_exec(arg[anum].arg_ptr.arg_cmd);
- break;
- case A_STAB:
- sarg[anum] = STAB_STR(arg[anum].arg_ptr.arg_stab);
-#ifdef DEBUGGING
- if (debug & 8) {
- sprintf(buf,"STAB $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
- tmps = buf;
- }
-#endif
- break;
- case A_LEXPR:
-#ifdef DEBUGGING
- if (debug & 8) {
- tmps = "LEXPR";
- deb("%d.LEXPR =>\n",anum);
- }
-#endif
- str = eval(arg[anum].arg_ptr.arg_arg,Null(STR***));
- if (!str)
- fatal("panic: A_LEXPR\n");
- goto do_crement;
- case A_LVAL:
-#ifdef DEBUGGING
- if (debug & 8) {
- sprintf(buf,"LVAL $%s ==",arg[anum].arg_ptr.arg_stab->stab_name);
- tmps = buf;
- }
-#endif
- str = STAB_STR(arg[anum].arg_ptr.arg_stab);
- if (!str)
- fatal("panic: A_LVAL\n");
- do_crement:
- assigning = TRUE;
- if (argflags & AF_PRE) {
- if (argflags & AF_UP)
- str_inc(str);
- else
- str_dec(str);
- STABSET(str);
- sarg[anum] = str;
- str = arg->arg_ptr.arg_str;
- }
- else if (argflags & AF_POST) {
- sarg[anum] = str_static(str);
- if (argflags & AF_UP)
- str_inc(str);
- else
- str_dec(str);
- STABSET(str);
- str = arg->arg_ptr.arg_str;
- }
- else {
- sarg[anum] = str;
- }
- break;
- case A_ARYLEN:
- sarg[anum] = str_static(&str_no);
- str_numset(sarg[anum],
- (double)alen(arg[anum].arg_ptr.arg_stab->stab_array));
-#ifdef DEBUGGING
- tmps = "ARYLEN";
-#endif
- break;
- case A_SINGLE:
- sarg[anum] = arg[anum].arg_ptr.arg_str;
-#ifdef DEBUGGING
- tmps = "SINGLE";
-#endif
- break;
- case A_DOUBLE:
- (void) interp(str,str_get(arg[anum].arg_ptr.arg_str));
- sarg[anum] = str;
-#ifdef DEBUGGING
- tmps = "DOUBLE";
-#endif
- break;
- case A_BACKTICK:
- tmps = str_get(arg[anum].arg_ptr.arg_str);
- fp = popen(str_get(interp(str,tmps)),"r");
- tmpstr = str_new(80);
- str_set(str,"");
- if (fp) {
- while (str_gets(tmpstr,fp) != Nullch) {
- str_scat(str,tmpstr);
- }
- statusvalue = pclose(fp);
- }
- else
- statusvalue = -1;
- str_free(tmpstr);
-
- sarg[anum] = str;
-#ifdef DEBUGGING
- tmps = "BACK";
-#endif
- break;
- case A_READ:
- fp = Nullfp;
- last_in_stab = arg[anum].arg_ptr.arg_stab;
- if (last_in_stab->stab_io) {
- fp = last_in_stab->stab_io->fp;
- if (!fp && (last_in_stab->stab_io->flags & IOF_ARGV)) {
- if (last_in_stab->stab_io->flags & IOF_START) {
- last_in_stab->stab_io->flags &= ~IOF_START;
- last_in_stab->stab_io->lines = 0;
- if (alen(last_in_stab->stab_array) < 0L) {
- tmpstr = str_make("-"); /* assume stdin */
- apush(last_in_stab->stab_array, tmpstr);
- }
- }
- fp = nextargv(last_in_stab);
- if (!fp) /* Note: fp != last_in_stab->stab_io->fp */
- do_close(last_in_stab,FALSE); /* now it does */
- }
- }
- keepgoing:
- if (!fp)
- sarg[anum] = &str_no;
- else if (!str_gets(str,fp)) {
- if (last_in_stab->stab_io->flags & IOF_ARGV) {
- fp = nextargv(last_in_stab);
- if (fp)
- goto keepgoing;
- do_close(last_in_stab,FALSE);
- last_in_stab->stab_io->flags |= IOF_START;
- }
- if (fp == stdin) {
- clearerr(fp);
- }
- sarg[anum] = &str_no;
- break;
- }
- else {
- last_in_stab->stab_io->lines++;
- sarg[anum] = str;
- }
-#ifdef DEBUGGING
- tmps = "READ";
-#endif
- break;
- }
-#ifdef DEBUGGING
- if (debug & 8)
- deb("%d.%s = '%s'\n",anum,tmps,str_peek(sarg[anum]));
-#endif
- }
- switch (optype) {
- case O_ITEM:
- if (str != sarg[1])
- str_sset(str,sarg[1]);
- STABSET(str);
- break;
- case O_ITEM2:
- if (str != sarg[2])
- str_sset(str,sarg[2]);
- STABSET(str);
- break;
- case O_ITEM3:
- if (str != sarg[3])
- str_sset(str,sarg[3]);
- STABSET(str);
- break;
- case O_CONCAT:
- if (str != sarg[1])
- str_sset(str,sarg[1]);
- str_scat(str,sarg[2]);
- STABSET(str);
- break;
- case O_REPEAT:
- if (str != sarg[1])
- str_sset(str,sarg[1]);
- anum = (long)str_gnum(sarg[2]);
- if (anum >= 1) {
- tmpstr = str_new(0);
- str_sset(tmpstr,str);
- for (anum--; anum; anum--)
- str_scat(str,tmpstr);
- }
- else
- str_sset(str,&str_no);
- STABSET(str);
- break;
- case O_MATCH:
- str_set(str, do_match(str_get(sarg[1]),arg) ? Yes : No);
- STABSET(str);
- break;
- case O_NMATCH:
- str_set(str, do_match(str_get(sarg[1]),arg) ? No : Yes);
- STABSET(str);
- break;
- case O_SUBST:
- value = (double) do_subst(str, arg);
- str = arg->arg_ptr.arg_str;
- goto donumset;
- case O_NSUBST:
- str_set(arg->arg_ptr.arg_str, do_subst(str, arg) ? No : Yes);
- str = arg->arg_ptr.arg_str;
- break;
- case O_ASSIGN:
- if (arg[2].arg_flags & AF_SPECIAL)
- do_assign(str,arg);
- else {
- if (str != sarg[2])
- str_sset(str, sarg[2]);
- STABSET(str);
- }
- break;
- case O_CHOP:
- tmps = str_get(str);
- tmps += str->str_cur - (str->str_cur != 0);
- str_set(arg->arg_ptr.arg_str,tmps); /* remember last char */
- *tmps = '\0'; /* wipe it out */
- str->str_cur = tmps - str->str_ptr;
- str->str_nok = 0;
- str = arg->arg_ptr.arg_str;
- break;
- case O_MULTIPLY:
- value = str_gnum(sarg[1]);
- value *= str_gnum(sarg[2]);
- goto donumset;
- case O_DIVIDE:
- value = str_gnum(sarg[1]);
- value /= str_gnum(sarg[2]);
- goto donumset;
- case O_MODULO:
- value = str_gnum(sarg[1]);
- value = (double)(((long)value) % (long)str_gnum(sarg[2]));
- goto donumset;
- case O_ADD:
- value = str_gnum(sarg[1]);
- value += str_gnum(sarg[2]);
- goto donumset;
- case O_SUBTRACT:
- value = str_gnum(sarg[1]);
- value -= str_gnum(sarg[2]);
- goto donumset;
- case O_LEFT_SHIFT:
- value = str_gnum(sarg[1]);
- value = (double)(((long)value) << (long)str_gnum(sarg[2]));
- goto donumset;
- case O_RIGHT_SHIFT:
- value = str_gnum(sarg[1]);
- value = (double)(((long)value) >> (long)str_gnum(sarg[2]));
- goto donumset;
- case O_LT:
- value = str_gnum(sarg[1]);
- value = (double)(value < str_gnum(sarg[2]));
- goto donumset;
- case O_GT:
- value = str_gnum(sarg[1]);
- value = (double)(value > str_gnum(sarg[2]));
- goto donumset;
- case O_LE:
- value = str_gnum(sarg[1]);
- value = (double)(value <= str_gnum(sarg[2]));
- goto donumset;
- case O_GE:
- value = str_gnum(sarg[1]);
- value = (double)(value >= str_gnum(sarg[2]));
- goto donumset;
- case O_EQ:
- value = str_gnum(sarg[1]);
- value = (double)(value == str_gnum(sarg[2]));
- goto donumset;
- case O_NE:
- value = str_gnum(sarg[1]);
- value = (double)(value != str_gnum(sarg[2]));
- goto donumset;
- case O_BIT_AND:
- value = str_gnum(sarg[1]);
- value = (double)(((long)value) & (long)str_gnum(sarg[2]));
- goto donumset;
- case O_XOR:
- value = str_gnum(sarg[1]);
- value = (double)(((long)value) ^ (long)str_gnum(sarg[2]));
- goto donumset;
- case O_BIT_OR:
- value = str_gnum(sarg[1]);
- value = (double)(((long)value) | (long)str_gnum(sarg[2]));
- goto donumset;
- case O_AND:
- if (str_true(sarg[1])) {
- anum = 2;
- optype = O_ITEM2;
- maxarg = 0;
- argflags = arg[anum].arg_flags;
- goto re_eval;
- }
- else {
- if (assigning) {
- str_sset(str, sarg[1]);
- STABSET(str);
- }
- else
- str = sarg[1];
- break;
- }
- case O_OR:
- if (str_true(sarg[1])) {
- if (assigning) {
- str_set(str, sarg[1]);
- STABSET(str);
- }
- else
- str = sarg[1];
- break;
- }
- else {
- anum = 2;
- optype = O_ITEM2;
- maxarg = 0;
- argflags = arg[anum].arg_flags;
- goto re_eval;
- }
- case O_COND_EXPR:
- anum = (str_true(sarg[1]) ? 2 : 3);
- optype = (anum == 2 ? O_ITEM2 : O_ITEM3);
- maxarg = 0;
- argflags = arg[anum].arg_flags;
- goto re_eval;
- case O_COMMA:
- str = sarg[2];
- break;
- case O_NEGATE:
- value = -str_gnum(sarg[1]);
- goto donumset;
- case O_NOT:
- value = (double) !str_true(sarg[1]);
- goto donumset;
- case O_COMPLEMENT:
- value = (double) ~(long)str_gnum(sarg[1]);
- goto donumset;
- case O_SELECT:
- if (arg[1].arg_type == A_LVAL)
- defoutstab = arg[1].arg_ptr.arg_stab;
- else
- defoutstab = stabent(str_get(sarg[1]),TRUE);
- if (!defoutstab->stab_io)
- defoutstab->stab_io = stio_new();
- curoutstab = defoutstab;
- str_set(str,curoutstab->stab_io->fp ? Yes : No);
- STABSET(str);
- break;
- case O_WRITE:
- if (maxarg == 0)
- stab = defoutstab;
- else if (arg[1].arg_type == A_LVAL)
- stab = arg[1].arg_ptr.arg_stab;
- else
- stab = stabent(str_get(sarg[1]),TRUE);
- if (!stab->stab_io) {
- str_set(str, No);
- STABSET(str);
- break;
- }
- curoutstab = stab;
- fp = stab->stab_io->fp;
- debarg = arg;
- if (stab->stab_io->fmt_stab)
- form = stab->stab_io->fmt_stab->stab_form;
- else
- form = stab->stab_form;
- if (!form || !fp) {
- str_set(str, No);
- STABSET(str);
- break;
- }
- format(&outrec,form);
- do_write(&outrec,stab->stab_io);
- if (stab->stab_io->flags & IOF_FLUSH)
- fflush(fp);
- str_set(str, Yes);
- STABSET(str);
- break;
- case O_OPEN:
- if (do_open(arg[1].arg_ptr.arg_stab,str_get(sarg[2]))) {
- str_set(str, Yes);
- arg[1].arg_ptr.arg_stab->stab_io->lines = 0;
- }
- else
- str_set(str, No);
- STABSET(str);
- break;
- case O_TRANS:
- value = (double) do_trans(str,arg);
- str = arg->arg_ptr.arg_str;
- goto donumset;
- case O_NTRANS:
- str_set(arg->arg_ptr.arg_str, do_trans(str,arg) == 0 ? Yes : No);
- str = arg->arg_ptr.arg_str;
- break;
- case O_CLOSE:
- str_set(str,
- do_close(arg[1].arg_ptr.arg_stab,TRUE) ? Yes : No );
- STABSET(str);
- break;
- case O_EACH:
- str_sset(str,do_each(arg[1].arg_ptr.arg_stab->stab_hash,sarg,retary));
- retary = Null(STR***); /* do_each already did retary */
- STABSET(str);
- break;
- case O_VALUES:
- case O_KEYS:
- value = (double) do_kv(arg[1].arg_ptr.arg_stab->stab_hash,
- optype,sarg,retary);
- retary = Null(STR***); /* do_keys already did retary */
- goto donumset;
- case O_ARRAY:
- if (maxarg == 1) {
- ary = arg[1].arg_ptr.arg_stab->stab_array;
- maxarg = ary->ary_fill;
- if (retary) { /* array wanted */
- sarg =
- (STR **)saferealloc((char*)sarg,(maxarg+3)*sizeof(STR*));
- for (anum = 0; anum <= maxarg; anum++) {
- sarg[anum+1] = str = afetch(ary,anum);
- }
- maxarg++;
- }
- else
- str = afetch(ary,maxarg);
- }
- else
- str = afetch(arg[2].arg_ptr.arg_stab->stab_array,
- ((int)str_gnum(sarg[1])) - arybase);
- if (!str)
- return &str_no;
- break;
- case O_HASH:
- tmpstab = arg[2].arg_ptr.arg_stab; /* XXX */
- str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
- if (!str)
- return &str_no;
- break;
- case O_LARRAY:
- anum = ((int)str_gnum(sarg[1])) - arybase;
- str = afetch(arg[2].arg_ptr.arg_stab->stab_array,anum);
- if (!str || str == &str_no) {
- str = str_new(0);
- astore(arg[2].arg_ptr.arg_stab->stab_array,anum,str);
- }
- break;
- case O_LHASH:
- tmpstab = arg[2].arg_ptr.arg_stab;
- str = hfetch(tmpstab->stab_hash,str_get(sarg[1]));
- if (!str) {
- str = str_new(0);
- hstore(tmpstab->stab_hash,str_get(sarg[1]),str);
- }
- if (tmpstab == envstab) { /* heavy wizardry going on here */
- str->str_link.str_magic = tmpstab;/* str is now magic */
- envname = savestr(str_get(sarg[1]));
- /* he threw the brick up into the air */
- }
- else if (tmpstab == sigstab) { /* same thing, only different */
- str->str_link.str_magic = tmpstab;
- signame = savestr(str_get(sarg[1]));
- }
- break;
- case O_PUSH:
- if (arg[1].arg_flags & AF_SPECIAL)
- str = do_push(arg,arg[2].arg_ptr.arg_stab->stab_array);
- else {
- str = str_new(0); /* must copy the STR */
- str_sset(str,sarg[1]);
- apush(arg[2].arg_ptr.arg_stab->stab_array,str);
- }
- break;
- case O_POP:
- str = apop(arg[1].arg_ptr.arg_stab->stab_array);
- if (!str)
- return &str_no;
-#ifdef STRUCTCOPY
- *(arg->arg_ptr.arg_str) = *str;
-#else
- bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
-#endif
- safefree((char*)str);
- str = arg->arg_ptr.arg_str;
- break;
- case O_SHIFT:
- str = ashift(arg[1].arg_ptr.arg_stab->stab_array);
- if (!str)
- return &str_no;
-#ifdef STRUCTCOPY
- *(arg->arg_ptr.arg_str) = *str;
-#else
- bcopy((char*)str, (char*)arg->arg_ptr.arg_str, sizeof *str);
-#endif
- safefree((char*)str);
- str = arg->arg_ptr.arg_str;
- break;
- case O_SPLIT:
- value = (double) do_split(str_get(sarg[1]),arg[2].arg_ptr.arg_spat,retary);
- retary = Null(STR***); /* do_split already did retary */
- goto donumset;
- case O_LENGTH:
- value = (double) str_len(sarg[1]);
- goto donumset;
- case O_SPRINTF:
- sarg[maxarg+1] = Nullstr;
- do_sprintf(str,arg->arg_len,sarg);
- break;
- case O_SUBSTR:
- anum = ((int)str_gnum(sarg[2])) - arybase;
- for (tmps = str_get(sarg[1]); *tmps && anum > 0; tmps++,anum--) ;
- anum = (int)str_gnum(sarg[3]);
- if (anum >= 0 && strlen(tmps) > anum)
- str_nset(str, tmps, anum);
- else
- str_set(str, tmps);
- break;
- case O_JOIN:
- if (arg[2].arg_flags & AF_SPECIAL && arg[2].arg_type == A_EXPR)
- do_join(arg,str_get(sarg[1]),str);
- else
- ajoin(arg[2].arg_ptr.arg_stab->stab_array,str_get(sarg[1]),str);
- break;
- case O_SLT:
- tmps = str_get(sarg[1]);
- value = (double) strLT(tmps,str_get(sarg[2]));
- goto donumset;
- case O_SGT:
- tmps = str_get(sarg[1]);
- value = (double) strGT(tmps,str_get(sarg[2]));
- goto donumset;
- case O_SLE:
- tmps = str_get(sarg[1]);
- value = (double) strLE(tmps,str_get(sarg[2]));
- goto donumset;
- case O_SGE:
- tmps = str_get(sarg[1]);
- value = (double) strGE(tmps,str_get(sarg[2]));
- goto donumset;
- case O_SEQ:
- tmps = str_get(sarg[1]);
- value = (double) strEQ(tmps,str_get(sarg[2]));
- goto donumset;
- case O_SNE:
- tmps = str_get(sarg[1]);
- value = (double) strNE(tmps,str_get(sarg[2]));
- goto donumset;
- case O_SUBR:
- str_sset(str,do_subr(arg,sarg));
- STABSET(str);
- break;
- case O_PRTF:
- case O_PRINT:
- if (maxarg <= 1)
- stab = defoutstab;
- else {
- stab = arg[2].arg_ptr.arg_stab;
- if (!stab)
- stab = defoutstab;
- }
- if (!stab->stab_io)
- value = 0.0;
- else if (arg[1].arg_flags & AF_SPECIAL)
- value = (double)do_aprint(arg,stab->stab_io->fp);
- else {
- value = (double)do_print(str_get(sarg[1]),stab->stab_io->fp);
- if (ors && optype == O_PRINT)
- do_print(ors, stab->stab_io->fp);
- }
- if (stab->stab_io->flags & IOF_FLUSH)
- fflush(stab->stab_io->fp);
- goto donumset;
- case O_CHDIR:
- tmps = str_get(sarg[1]);
- if (!tmps || !*tmps)
- tmps = getenv("HOME");
- if (!tmps || !*tmps)
- tmps = getenv("LOGDIR");
- value = (double)(chdir(tmps) >= 0);
- goto donumset;
- case O_DIE:
- tmps = str_get(sarg[1]);
- if (!tmps || !*tmps)
- exit(1);
- fatal("%s\n",str_get(sarg[1]));
- value = 0.0;
- goto donumset;
- case O_EXIT:
- exit((int)str_gnum(sarg[1]));
- value = 0.0;
- goto donumset;
- case O_RESET:
- str_reset(str_get(sarg[1]));
- value = 1.0;
- goto donumset;
- case O_LIST:
- if (maxarg > 0)
- str = sarg[maxarg]; /* unwanted list, return last item */
- else
- str = &str_no;
- break;
- case O_EOF:
- str_set(str, do_eof(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab) ? Yes : No);
- STABSET(str);
- break;
- case O_TELL:
- value = (double)do_tell(maxarg > 0 ? arg[1].arg_ptr.arg_stab : last_in_stab);
- goto donumset;
- break;
- case O_SEEK:
- value = str_gnum(sarg[2]);
- str_set(str, do_seek(arg[1].arg_ptr.arg_stab,
- (long)value, (int)str_gnum(sarg[3]) ) ? Yes : No);
- STABSET(str);
- break;
- case O_REDO:
- case O_NEXT:
- case O_LAST:
- if (maxarg > 0) {
- tmps = str_get(sarg[1]);
- while (loop_ptr >= 0 && (!loop_stack[loop_ptr].loop_label ||
- strNE(tmps,loop_stack[loop_ptr].loop_label) )) {
-#ifdef DEBUGGING
- if (debug & 4) {
- deb("(Skipping label #%d %s)\n",loop_ptr,
- loop_stack[loop_ptr].loop_label);
- }
-#endif
- loop_ptr--;
- }
-#ifdef DEBUGGING
- if (debug & 4) {
- deb("(Found label #%d %s)\n",loop_ptr,
- loop_stack[loop_ptr].loop_label);
- }
-#endif
- }
- if (loop_ptr < 0)
- fatal("Bad label: %s\n", maxarg > 0 ? tmps : "<null>");
- longjmp(loop_stack[loop_ptr].loop_env, optype);
- case O_GOTO:/* shudder */
- goto_targ = str_get(sarg[1]);
- longjmp(top_env, 1);
- case O_INDEX:
- tmps = str_get(sarg[1]);
- if (!(tmps2 = instr(tmps,str_get(sarg[2]))))
- value = (double)(-1 + arybase);
- else
- value = (double)(tmps2 - tmps + arybase);
- goto donumset;
- case O_TIME:
- value = (double) time(0);
- goto donumset;
- case O_TMS:
- value = (double) do_tms(retary);
- retary = Null(STR***); /* do_tms already did retary */
- goto donumset;
- case O_LOCALTIME:
- tmplong = (long) str_gnum(sarg[1]);
- value = (double) do_time(localtime(&tmplong),retary);
- retary = Null(STR***); /* do_localtime already did retary */
- goto donumset;
- case O_GMTIME:
- tmplong = (long) str_gnum(sarg[1]);
- value = (double) do_time(gmtime(&tmplong),retary);
- retary = Null(STR***); /* do_gmtime already did retary */
- goto donumset;
- case O_STAT:
- value = (double) do_stat(arg,sarg,retary);
- retary = Null(STR***); /* do_stat already did retary */
- goto donumset;
- case O_CRYPT:
-#ifdef CRYPT
- tmps = str_get(sarg[1]);
- str_set(str,crypt(tmps,str_get(sarg[2])));
-#else
- fatal(
- "The crypt() function is unimplemented due to excessive paranoia.");
-#endif
- break;
- case O_EXP:
- value = exp(str_gnum(sarg[1]));
- goto donumset;
- case O_LOG:
- value = log(str_gnum(sarg[1]));
- goto donumset;
- case O_SQRT:
- value = sqrt(str_gnum(sarg[1]));
- goto donumset;
- case O_INT:
- modf(str_gnum(sarg[1]),&value);
- goto donumset;
- case O_ORD:
- value = (double) *str_get(sarg[1]);
- goto donumset;
- case O_SLEEP:
- tmps = str_get(sarg[1]);
- time(&tmplong);
- if (!tmps || !*tmps)
- sleep((32767<<16)+32767);
- else
- sleep(atoi(tmps));
- value = (double)tmplong;
- time(&tmplong);
- value = ((double)tmplong) - value;
- goto donumset;
- case O_FLIP:
- if (str_true(sarg[1])) {
- str_numset(str,0.0);
- anum = 2;
- arg->arg_type = optype = O_FLOP;
- maxarg = 0;
- arg[2].arg_flags &= ~AF_SPECIAL;
- arg[1].arg_flags |= AF_SPECIAL;
- argflags = arg[anum].arg_flags;
- goto re_eval;
- }
- str_set(str,"");
- break;
- case O_FLOP:
- str_inc(str);
- if (str_true(sarg[2])) {
- arg->arg_type = O_FLIP;
- arg[1].arg_flags &= ~AF_SPECIAL;
- arg[2].arg_flags |= AF_SPECIAL;
- str_cat(str,"E0");
- }
- break;
- case O_FORK:
- value = (double)fork();
- goto donumset;
- case O_SYSTEM:
- if (anum = vfork()) {
- ihand = signal(SIGINT, SIG_IGN);
- qhand = signal(SIGQUIT, SIG_IGN);
- while ((maxarg = wait(&argflags)) != anum && maxarg != -1)
- ;
- if (maxarg == -1)
- argflags = -1;
- signal(SIGINT, ihand);
- signal(SIGQUIT, qhand);
- value = (double)argflags;
- goto donumset;
- }
- /* FALL THROUGH */
- case O_EXEC:
- if (arg[1].arg_flags & AF_SPECIAL)
- value = (double)do_aexec(arg);
- else {
- value = (double)do_exec(str_get(sarg[1]));
- }
- goto donumset;
- case O_HEX:
- maxarg = 4;
- goto snarfnum;
-
- case O_OCT:
- maxarg = 3;
-
- snarfnum:
- anum = 0;
- tmps = str_get(sarg[1]);
- for (;;) {
- switch (*tmps) {
- default:
- goto out;
- case '8': case '9':
- if (maxarg != 4)
- goto out;
- /* FALL THROUGH */
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7':
- anum <<= maxarg;
- anum += *tmps++ & 15;
- break;
- case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
- case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
- if (maxarg != 4)
- goto out;
- anum <<= 4;
- anum += (*tmps++ & 7) + 9;
- break;
- case 'x':
- maxarg = 4;
- tmps++;
- break;
- }
- }
- out:
- value = (double)anum;
- goto donumset;
- case O_CHMOD:
- case O_CHOWN:
- case O_KILL:
- case O_UNLINK:
- if (arg[1].arg_flags & AF_SPECIAL)
- value = (double)apply(optype,arg,Null(STR**));
- else {
- sarg[2] = Nullstr;
- value = (double)apply(optype,arg,sarg);
- }
- goto donumset;
- case O_UMASK:
- value = (double)umask((int)str_gnum(sarg[1]));
- goto donumset;
- case O_RENAME:
- tmps = str_get(sarg[1]);
-#ifdef RENAME
- value = (double)(rename(tmps,str_get(sarg[2])) >= 0);
-#else
- tmps2 = str_get(sarg[2]);
- UNLINK(tmps2);
- if (!(anum = link(tmps,tmps2)))
- anum = UNLINK(tmps);
- value = (double)(anum >= 0);
-#endif
- goto donumset;
- case O_LINK:
- tmps = str_get(sarg[1]);
- value = (double)(link(tmps,str_get(sarg[2])) >= 0);
- goto donumset;
- case O_UNSHIFT:
- ary = arg[2].arg_ptr.arg_stab->stab_array;
- if (arg[1].arg_flags & AF_SPECIAL)
- do_unshift(arg,ary);
- else {
- str = str_new(0); /* must copy the STR */
- str_sset(str,sarg[1]);
- aunshift(ary,1);
- astore(ary,0,str);
- }
- value = (double)(ary->ary_fill + 1);
- break;
- case O_EVAL:
- str_sset(str,
- do_eval(arg[1].arg_type != A_NULL ? sarg[1] : defstab->stab_val) );
- STABSET(str);
- break;
- }
-#ifdef DEBUGGING
- dlevel--;
- if (debug & 8)
- deb("%s RETURNS \"%s\"\n",opname[optype],str_get(str));
-#endif
- goto freeargs;
-
-donumset:
- str_numset(str,value);
- STABSET(str);
-#ifdef DEBUGGING
- dlevel--;
- if (debug & 8)
- deb("%s RETURNS \"%f\"\n",opname[optype],value);
-#endif
-
-freeargs:
- if (sarg != quicksarg) {
- if (retary) {
- if (optype == O_LIST)
- sarg[0] = &str_no;
- else
- sarg[0] = Nullstr;
- sarg[maxarg+1] = Nullstr;
- *retary = sarg; /* up to them to free it */
- }
- else
- safefree(sarg);
- }
- return str;
-
-nullarray:
- maxarg = 0;
-#ifdef DEBUGGING
- dlevel--;
- if (debug & 8)
- deb("%s RETURNS ()\n",opname[optype],value);
-#endif
- goto freeargs;
+ opargs[O_FTEREAD] = A(1,0,0);
+ opargs[O_FTEWRITE] = A(1,0,0);
+ opargs[O_FTEEXEC] = A(1,0,0);
+ opargs[O_FTEOWNED] = A(1,0,0);
+ opargs[O_FTRREAD] = A(1,0,0);
+ opargs[O_FTRWRITE] = A(1,0,0);
+ opargs[O_FTREXEC] = A(1,0,0);
+ opargs[O_FTROWNED] = A(1,0,0);
+ opargs[O_FTIS] = A(1,0,0);
+ opargs[O_FTZERO] = A(1,0,0);
+ opargs[O_FTSIZE] = A(1,0,0);
+ opargs[O_FTFILE] = A(1,0,0);
+ opargs[O_FTDIR] = A(1,0,0);
+ opargs[O_FTLINK] = A(1,0,0);
+ opargs[O_SYMLINK] = A(1,1,0);
+ opargs[O_FTPIPE] = A(1,0,0);
+ opargs[O_FTSUID] = A(1,0,0);
+ opargs[O_FTSGID] = A(1,0,0);
+ opargs[O_FTSVTX] = A(1,0,0);
+ opargs[O_FTCHR] = A(1,0,0);
+ opargs[O_FTBLK] = A(1,0,0);
+ opargs[O_FTSOCK] = A(1,0,0);
+ opargs[O_FTTTY] = A(1,0,0);
+ opargs[O_DOFILE] = A(1,0,0);
+ opargs[O_FTTEXT] = A(1,0,0);
+ opargs[O_FTBINARY] = A(1,0,0);
+ opargs[O_UTIME] = A(1,0,0);
+ opargs[O_WAIT] = A(0,0,0);
+ opargs[O_SORT] = A(1,0,0);
+ opargs[O_STUDY] = A(1,0,0);
+ opargs[O_DELETE] = A(1,0,0);
}
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