Backport from xs.

This commit is contained in:
default 2023-08-13 15:41:58 +02:00
parent 8d04fc912f
commit 25a8355be3
2 changed files with 36 additions and 33 deletions

67
xs.h
View file

@ -71,9 +71,9 @@ xs_str *xs_replace_in(xs_str *str, const char *sfrom, const char *sto, int times
#define xs_replace_n(str, sfrom, sto, times) xs_replace_in(xs_dup(str), sfrom, sto, times)
xs_str *xs_fmt(const char *fmt, ...);
int xs_str_in(const char *haystack, const char *needle);
int _xs_startsorends(const char *str, const char *xfix, int ends);
#define xs_startswith(str, prefix) _xs_startsorends(str, prefix, 0)
#define xs_endswith(str, postfix) _xs_startsorends(str, postfix, 1)
int xs_starts_and_ends(const char *prefix, const char *str, const char *suffix);
#define xs_startswith(str, prefix) xs_starts_and_ends(prefix, str, NULL)
#define xs_endswith(str, suffix) xs_starts_and_ends(NULL, str, suffix)
xs_str *xs_crop_i(xs_str *str, int start, int end);
xs_str *xs_strip_chars_i(xs_str *str, const char *chars);
#define xs_strip_i(str) xs_strip_chars_i(str, " \r\n\t\v\f")
@ -436,7 +436,7 @@ xs_str *xs_str_wrap_i(const char *prefix, xs_str *str, const char *suffix)
str = xs_insert_m(str, 0, prefix, strlen(prefix));
if (suffix)
str = xs_insert_m(str, xs_size(str) - 1, suffix, xs_size(suffix));
str = xs_insert_m(str, strlen(str), suffix, strlen(suffix));
return str;
}
@ -455,8 +455,11 @@ xs_str *xs_replace_in(xs_str *str, const char *sfrom, const char *sto, int times
while (times > 0 && (ss = strstr(str + offset, sfrom)) != NULL) {
int n_offset = ss - str;
str = xs_collapse(str, n_offset, sfsz);
str = xs_expand(str, n_offset, stsz);
if (sfsz != stsz) {
str = xs_collapse(str, n_offset, sfsz);
str = xs_expand(str, n_offset, stsz);
}
memcpy(str + n_offset, sto, stsz);
offset = n_offset + stsz;
@ -504,13 +507,23 @@ int xs_str_in(const char *haystack, const char *needle)
}
int _xs_startsorends(const char *str, const char *xfix, int ends)
/* returns true if str starts or ends with xfix */
int xs_starts_and_ends(const char *prefix, const char *str, const char *suffix)
/* returns true if str starts with prefix and ends with suffix */
{
int ssz = strlen(str);
int psz = strlen(xfix);
int sz = strlen(str);
int psz = prefix ? strlen(prefix) : 0;
int ssz = suffix ? strlen(suffix) : 0;
return !!(ssz >= psz && memcmp(xfix, str + (ends ? ssz - psz : 0), psz) == 0);
if (sz < psz || sz < ssz)
return 0;
if (prefix && memcmp(str, prefix, psz) != 0)
return 0;
if (suffix && memcmp(str + sz - ssz, suffix, ssz) != 0)
return 0;
return 1;
}
@ -576,15 +589,10 @@ xs_str *xs_tolower_i(xs_str *str)
xs_list *xs_list_new(void)
/* creates a new list */
{
xs_list *list;
list = xs_realloc(NULL, _xs_blk_size(5));
list[0] = XSTYPE_LIST;
list[4] = XSTYPE_EOM;
_xs_put_24b(list + 1, 5);
return list;
return memcpy(
xs_realloc(NULL, _xs_blk_size(sizeof(xs_stock_list))),
xs_stock_list, sizeof(xs_stock_list)
);
}
@ -593,10 +601,10 @@ xs_list *_xs_list_write_litem(xs_list *list, int offset, const char *mem, int ds
{
XS_ASSERT_TYPE(list, XSTYPE_LIST);
char c = XSTYPE_LITEM;
list = xs_expand(list, offset, dsz + 1);
list = xs_insert_m(list, offset, &c, 1);
list = xs_insert_m(list, offset + 1, mem, dsz);
list[offset] = XSTYPE_LITEM;
memcpy(list + offset + 1, mem, dsz);
return list;
}
@ -882,15 +890,10 @@ xs_list *xs_list_cat(xs_list *l1, const xs_list *l2)
xs_dict *xs_dict_new(void)
/* creates a new dict */
{
xs_dict *dict;
dict = xs_realloc(NULL, _xs_blk_size(5));
dict[0] = XSTYPE_DICT;
dict[4] = XSTYPE_EOM;
_xs_put_24b(dict + 1, 5);
return dict;
return memcpy(
xs_realloc(NULL, _xs_blk_size(sizeof(xs_stock_dict))),
xs_stock_dict, sizeof(xs_stock_dict)
);
}

View file

@ -1 +1 @@
/* ac9e4d062c08ebfec62279b7ffde5215d45fcea6 */
/* 0efaa0cfce82c0f8f7bde81359a2c55a41928af3 */