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String enhancements. Slice deletion

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git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@4629 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
Dave Beazley 2003-03-26 03:28:00 +00:00
commit b02f748627
5 changed files with 89 additions and 0 deletions
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67
Source/DOH/string.c
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@ -271,6 +271,36 @@ String_delitem(DOH *so, int pos)
return 0;
}
/* -----------------------------------------------------------------------------
* int String_delslice() - Delete a range
* ----------------------------------------------------------------------------- */
static int
String_delslice(DOH *so, int sindex, int eindex) {
String *s = (String *) ObjData(so);
int size;
s->hashkey = -1;
if (eindex == DOH_END) eindex = s->len;
if (sindex == DOH_BEGIN) sindex = 0;
if (s->len == 0) return 0;
size = eindex - sindex;
if (s->sp > eindex) {
/* Adjust the file pointer and line count */
char *c = s->str + sindex;
int i;
for (i = 0; i < size; i++) {
if (*c == '\n') s->line--;
}
s->sp -= size;
assert(s->sp >= 0);
}
memmove(s->str+sindex,s->str+eindex, ((s->len-size) - sindex));
s->len -= size;
s->str[s->len] = 0;
return 0;
}
/* -----------------------------------------------------------------------------
* DOH *String_str() - Returns a string (used by printing commands)
* ----------------------------------------------------------------------------- */
@ -843,6 +873,7 @@ static DohListMethods StringListMethods = {
0, /* doh_setitem */
String_delitem, /* doh_delitem */
String_insert, /* doh_insitem */
String_delslice, /* doh_delslice */
0, /* doh_first */
0, /* doh_next */
};
@ -924,6 +955,42 @@ DohNewString(const DOH *so)
return DohObjMalloc(&DohStringType,str);
}
/* -----------------------------------------------------------------------------
* NewStringWithSize(const char *c, int len) - Create a new string
* ----------------------------------------------------------------------------- */
DOHString *
DohNewStringWithSize(const DOH *so, int len)
{
int l = 0, max;
String *str;
char *s;
if (DohCheck(so)) s = Char(so);
else s = (char *) so;
str = (String *) DohMalloc(sizeof(String));
str->hashkey = -1;
str->sp = 0;
str->line = 1;
str->file = 0;
max = INIT_MAXSIZE;
if (s) {
l = (int) len;
if ((l+1) > max) max = l+1;
}
str->str = (char *) DohMalloc(max);
str->maxsize = max;
if (s) {
strncpy(str->str,s,len);
str->len = l;
str->sp = l;
} else {
str->str[0] = 0;
str->len = 0;
}
return DohObjMalloc(&DohStringType,str);
}
/* -----------------------------------------------------------------------------
* NewStringf(DOH *fmt, ...)
*