summaryrefslogtreecommitdiffstats
path: root/contrib/perl5/x2p/str.c
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/perl5/x2p/str.c')
-rw-r--r--contrib/perl5/x2p/str.c442
1 files changed, 0 insertions, 442 deletions
diff --git a/contrib/perl5/x2p/str.c b/contrib/perl5/x2p/str.c
deleted file mode 100644
index 310bcd6..0000000
--- a/contrib/perl5/x2p/str.c
+++ /dev/null
@@ -1,442 +0,0 @@
-/* $RCSfile: str.c,v $$Revision: 4.1 $$Date: 92/08/07 18:29:26 $
- *
- * Copyright (c) 1991-2001, Larry Wall
- *
- * You may distribute under the terms of either the GNU General Public
- * License or the Artistic License, as specified in the README file.
- *
- * $Log: str.c,v $
- */
-
-#include "EXTERN.h"
-#include "a2p.h"
-#include "util.h"
-
-void
-str_numset(register STR *str, double num)
-{
- str->str_nval = num;
- str->str_pok = 0; /* invalidate pointer */
- str->str_nok = 1; /* validate number */
-}
-
-char *
-str_2ptr(register STR *str)
-{
- register char *s;
-
- if (!str)
- return "";
- GROWSTR(&(str->str_ptr), &(str->str_len), 24);
- s = str->str_ptr;
- if (str->str_nok) {
- sprintf(s,"%.20g",str->str_nval);
- while (*s) s++;
- }
- *s = '\0';
- str->str_cur = s - str->str_ptr;
- str->str_pok = 1;
-#ifdef DEBUGGING
- if (debug & 32)
- fprintf(stderr,"0x%lx ptr(%s)\n",(unsigned long)str,str->str_ptr);
-#endif
- return str->str_ptr;
-}
-
-double
-str_2num(register STR *str)
-{
- if (!str)
- return 0.0;
- if (str->str_len && str->str_pok)
- str->str_nval = atof(str->str_ptr);
- else
- str->str_nval = 0.0;
- str->str_nok = 1;
-#ifdef DEBUGGING
- if (debug & 32)
- fprintf(stderr,"0x%lx num(%g)\n",(unsigned long)str,str->str_nval);
-#endif
- return str->str_nval;
-}
-
-void
-str_sset(STR *dstr, register STR *sstr)
-{
- if (!sstr)
- str_nset(dstr,No,0);
- else if (sstr->str_nok)
- str_numset(dstr,sstr->str_nval);
- else if (sstr->str_pok)
- str_nset(dstr,sstr->str_ptr,sstr->str_cur);
- else
- str_nset(dstr,"",0);
-}
-
-void
-str_nset(register STR *str, register char *ptr, register int len)
-{
- GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
- bcopy(ptr,str->str_ptr,len);
- str->str_cur = len;
- *(str->str_ptr+str->str_cur) = '\0';
- str->str_nok = 0; /* invalidate number */
- str->str_pok = 1; /* validate pointer */
-}
-
-void
-str_set(register STR *str, register char *ptr)
-{
- register int len;
-
- if (!ptr)
- ptr = "";
- len = strlen(ptr);
- GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
- bcopy(ptr,str->str_ptr,len+1);
- str->str_cur = len;
- str->str_nok = 0; /* invalidate number */
- str->str_pok = 1; /* validate pointer */
-}
-
-void
-str_chop(register STR *str, register char *ptr) /* like set but assuming ptr is in str */
-
-
-{
- if (!(str->str_pok))
- str_2ptr(str);
- str->str_cur -= (ptr - str->str_ptr);
- bcopy(ptr,str->str_ptr, str->str_cur + 1);
- str->str_nok = 0; /* invalidate number */
- str->str_pok = 1; /* validate pointer */
-}
-
-void
-str_ncat(register STR *str, register char *ptr, register int len)
-{
- if (!(str->str_pok))
- str_2ptr(str);
- GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + len + 1);
- bcopy(ptr,str->str_ptr+str->str_cur,len);
- str->str_cur += len;
- *(str->str_ptr+str->str_cur) = '\0';
- str->str_nok = 0; /* invalidate number */
- str->str_pok = 1; /* validate pointer */
-}
-
-void
-str_scat(STR *dstr, register STR *sstr)
-{
- if (!(sstr->str_pok))
- str_2ptr(sstr);
- if (sstr)
- str_ncat(dstr,sstr->str_ptr,sstr->str_cur);
-}
-
-void
-str_cat(register STR *str, register char *ptr)
-{
- register int len;
-
- if (!ptr)
- return;
- if (!(str->str_pok))
- str_2ptr(str);
- len = strlen(ptr);
- GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + len + 1);
- bcopy(ptr,str->str_ptr+str->str_cur,len+1);
- str->str_cur += len;
- str->str_nok = 0; /* invalidate number */
- str->str_pok = 1; /* validate pointer */
-}
-
-char *
-str_append_till(register STR *str, register char *from, register int delim, char *keeplist)
-{
- register char *to;
- register int len;
-
- if (!from)
- return Nullch;
- len = strlen(from);
- GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + len + 1);
- str->str_nok = 0; /* invalidate number */
- str->str_pok = 1; /* validate pointer */
- to = str->str_ptr+str->str_cur;
- for (; *from; from++,to++) {
- if (*from == '\\' && from[1] && delim != '\\') {
- if (!keeplist) {
- if (from[1] == delim || from[1] == '\\')
- from++;
- else
- *to++ = *from++;
- }
- else if (strchr(keeplist,from[1]))
- *to++ = *from++;
- else
- from++;
- }
- else if (*from == delim)
- break;
- *to = *from;
- }
- *to = '\0';
- str->str_cur = to - str->str_ptr;
- return from;
-}
-
-STR *
-str_new(int len)
-{
- register STR *str;
-
- if (freestrroot) {
- str = freestrroot;
- freestrroot = str->str_link.str_next;
- }
- else {
- str = (STR *) safemalloc(sizeof(STR));
- bzero((char*)str,sizeof(STR));
- }
- if (len)
- GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
- return str;
-}
-
-void
-str_grow(register STR *str, int len)
-{
- if (len && str)
- GROWSTR(&(str->str_ptr), &(str->str_len), len + 1);
-}
-
-/* make str point to what nstr did */
-
-void
-str_replace(register STR *str, register STR *nstr)
-{
- safefree(str->str_ptr);
- str->str_ptr = nstr->str_ptr;
- str->str_len = nstr->str_len;
- str->str_cur = nstr->str_cur;
- str->str_pok = nstr->str_pok;
- if (str->str_nok = nstr->str_nok)
- str->str_nval = nstr->str_nval;
- safefree((char*)nstr);
-}
-
-void
-str_free(register STR *str)
-{
- if (!str)
- return;
- if (str->str_len)
- str->str_ptr[0] = '\0';
- str->str_cur = 0;
- str->str_nok = 0;
- str->str_pok = 0;
- str->str_link.str_next = freestrroot;
- freestrroot = str;
-}
-
-int
-str_len(register STR *str)
-{
- if (!str)
- return 0;
- if (!(str->str_pok))
- str_2ptr(str);
- if (str->str_len)
- return str->str_cur;
- else
- return 0;
-}
-
-char *
-str_gets(register STR *str, register FILE *fp)
-{
-#if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE)
- /* Here is some breathtakingly efficient cheating */
-
- register char *bp; /* we're going to steal some values */
- register int cnt; /* from the stdio struct and put EVERYTHING */
- register STDCHAR *ptr; /* in the innermost loop into registers */
- register char newline = '\n'; /* (assuming at least 6 registers) */
- int i;
- int bpx;
-
-#if defined(VMS)
- /* An ungetc()d char is handled separately from the regular
- * buffer, so we getc() it back out and stuff it in the buffer.
- */
- i = getc(fp);
- if (i == EOF) return Nullch;
- *(--((*fp)->_ptr)) = (unsigned char) i;
- (*fp)->_cnt++;
-#endif
-
- cnt = FILE_cnt(fp); /* get count into register */
- str->str_nok = 0; /* invalidate number */
- str->str_pok = 1; /* validate pointer */
- if (str->str_len <= cnt) /* make sure we have the room */
- GROWSTR(&(str->str_ptr), &(str->str_len), cnt+1);
- bp = str->str_ptr; /* move these two too to registers */
- ptr = FILE_ptr(fp);
- for (;;) {
- while (--cnt >= 0) {
- if ((*bp++ = *ptr++) == newline)
- if (bp <= str->str_ptr || bp[-2] != '\\')
- goto thats_all_folks;
- else {
- line++;
- bp -= 2;
- }
- }
-
- FILE_cnt(fp) = cnt; /* deregisterize cnt and ptr */
- FILE_ptr(fp) = ptr;
- i = getc(fp); /* get more characters */
- cnt = FILE_cnt(fp);
- ptr = FILE_ptr(fp); /* reregisterize cnt and ptr */
-
- bpx = bp - str->str_ptr; /* prepare for possible relocation */
- GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + cnt + 1);
- bp = str->str_ptr + bpx; /* reconstitute our pointer */
-
- if (i == newline) { /* all done for now? */
- *bp++ = i;
- goto thats_all_folks;
- }
- else if (i == EOF) /* all done for ever? */
- goto thats_all_folks;
- *bp++ = i; /* now go back to screaming loop */
- }
-
-thats_all_folks:
- FILE_cnt(fp) = cnt; /* put these back or we're in trouble */
- FILE_ptr(fp) = ptr;
- *bp = '\0';
- str->str_cur = bp - str->str_ptr; /* set length */
-
-#else /* USE_STDIO_PTR && STDIO_PTR_LVALUE && STDIO_CNT_LVALUE */
- /* The big, slow, and stupid way */
-
- static char buf[4192];
-
- if (fgets(buf, sizeof buf, fp) != Nullch)
- str_set(str, buf);
- else
- str_set(str, No);
-
-#endif /* USE_STDIO_PTR && STDIO_PTR_LVALUE && STDIO_CNT_LVALUE */
-
- return str->str_cur ? str->str_ptr : Nullch;
-}
-
-void
-str_inc(register STR *str)
-{
- register char *d;
-
- if (!str)
- return;
- if (str->str_nok) {
- str->str_nval += 1.0;
- str->str_pok = 0;
- return;
- }
- if (!str->str_pok) {
- str->str_nval = 1.0;
- str->str_nok = 1;
- return;
- }
- for (d = str->str_ptr; *d && *d != '.'; d++) ;
- d--;
- if (!isdigit(*str->str_ptr) || !isdigit(*d) ) {
- str_numset(str,atof(str->str_ptr) + 1.0); /* punt */
- return;
- }
- while (d >= str->str_ptr) {
- if (++*d <= '9')
- return;
- *(d--) = '0';
- }
- /* oh,oh, the number grew */
- GROWSTR(&(str->str_ptr), &(str->str_len), str->str_cur + 2);
- str->str_cur++;
- for (d = str->str_ptr + str->str_cur; d > str->str_ptr; d--)
- *d = d[-1];
- *d = '1';
-}
-
-void
-str_dec(register STR *str)
-{
- register char *d;
-
- if (!str)
- return;
- if (str->str_nok) {
- str->str_nval -= 1.0;
- str->str_pok = 0;
- return;
- }
- if (!str->str_pok) {
- str->str_nval = -1.0;
- str->str_nok = 1;
- return;
- }
- for (d = str->str_ptr; *d && *d != '.'; d++) ;
- d--;
- if (!isdigit(*str->str_ptr) || !isdigit(*d) || (*d == '0' && d == str->str_ptr)) {
- str_numset(str,atof(str->str_ptr) - 1.0); /* punt */
- return;
- }
- while (d >= str->str_ptr) {
- if (--*d >= '0')
- return;
- *(d--) = '9';
- }
-}
-
-/* make a string that will exist for the duration of the expression eval */
-
-STR *
-str_mortal(STR *oldstr)
-{
- register STR *str = str_new(0);
- static long tmps_size = -1;
-
- str_sset(str,oldstr);
- if (++tmps_max > tmps_size) {
- tmps_size = tmps_max;
- if (!(tmps_size & 127)) {
- if (tmps_size)
- tmps_list = (STR**)saferealloc((char*)tmps_list,
- (tmps_size + 128) * sizeof(STR*) );
- else
- tmps_list = (STR**)safemalloc(128 * sizeof(char*));
- }
- }
- tmps_list[tmps_max] = str;
- return str;
-}
-
-STR *
-str_make(char *s)
-{
- register STR *str = str_new(0);
-
- str_set(str,s);
- return str;
-}
-
-STR *
-str_nmake(double n)
-{
- register STR *str = str_new(0);
-
- str_numset(str,n);
- return str;
-}
OpenPOWER on IntegriCloud