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Backported from xs.

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default 2022-09-27 10:14:29 +02:00
parent fcf8328503
commit 37dd6a631c
1 changed files with 14 additions and 22 deletions
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36
xs.h
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@ -50,7 +50,8 @@ d_char *xs_insert_m(d_char *data, int offset, const char *mem, int size);
#define xs_append_m(data, mem, size) xs_insert_m(data, xs_size(data) - 1, mem, size) #define xs_append_m(data, mem, size) xs_insert_m(data, xs_size(data) - 1, mem, size)
d_char *xs_str_new(const char *str); d_char *xs_str_new(const char *str);
#define xs_str_cat(str1, str2) xs_insert(str1, xs_size(str1) - 1, str2) #define xs_str_cat(str1, str2) xs_insert(str1, xs_size(str1) - 1, str2)
d_char *xs_replace(const char *str, const char *sfrom, const char *sto); d_char *xs_replace_i(d_char *str, const char *sfrom, const char *sto);
#define xs_replace(str, sfrom, sto) xs_replace_i(xs_dup(str), sfrom, sto)
d_char *xs_fmt(const char *fmt, ...); d_char *xs_fmt(const char *fmt, ...);
int xs_str_in(char *haystack, char *needle); int xs_str_in(char *haystack, char *needle);
int xs_startswith(char *str, char *prefix); int xs_startswith(char *str, char *prefix);
@ -262,34 +263,25 @@ d_char *xs_str_new(const char *str)
} }
d_char *xs_replace(const char *str, const char *sfrom, const char *sto) d_char *xs_replace_i(d_char *str, const char *sfrom, const char *sto)
/* replaces all occurrences of sfrom with sto in str */ /* replaces inline all sfrom with sto */
{ {
d_char *s; int sfsz = strlen(sfrom);
int stsz = strlen(sto);
char *ss; char *ss;
int sfsz; int offset = 0;
/* cache the sizes */ while ((ss = strstr(str + offset, sfrom)) != NULL) {
sfsz = strlen(sfrom); int n_offset = ss - str;
/* create the new string */ str = xs_collapse(str, n_offset, sfsz);
s = xs_str_new(NULL); str = xs_expand(str, n_offset, stsz);
memcpy(str + n_offset, sto, stsz);
while ((ss = strstr(str, sfrom)) != NULL) { offset = n_offset;
/* copy the first part */
s = xs_append_m(s, str, ss - str);
/* copy sto */
s = xs_str_cat(s, sto);
/* move forward */
str = ss + sfsz;
} }
/* copy the rest */ return str;
s = xs_str_cat(s, str);
return s;
} }