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System | : | Linux MiraNet 3.0.0-14-generic-pae #23-Ubuntu SMP Mon Nov 21 22:07:10 UTC 2011 i686 |
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/
usr/
src/
courier-0.66.1/
unicode/
- drwxrwxrwx
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Viewing file: unicodebuf.c (2.01 KB) -rw-rw-rw-Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
/* ** Copyright 2011 Double Precision, Inc. ** See COPYING for distribution information. ** */
#include "unicode_config.h" #include "unicode.h" #include <stdlib.h> #include <string.h>
void unicode_buf_init(struct unicode_buf *p, size_t max) { p->ptr=0; p->size=0; p->len=0; p->max=max; }
void unicode_buf_deinit(struct unicode_buf *p) { if (p->ptr) free(p->ptr); }
int unicode_buf_append(struct unicode_buf *p, const unicode_char *uc, size_t l) { if (l > p->max-p->len) l=p->max-p->len;
if (p->len + l > p->size) { size_t n=(p->len + l) * 2; unicode_char *newp;
if (n < 256) n=256;
if (n > p->max) n=p->max;
newp=p->ptr ? realloc(p->ptr, n * sizeof(unicode_char)) : malloc(n * sizeof(unicode_char));
if (!newp) return -1;
p->ptr=newp; p->size=n; }
memcpy(p->ptr + p->len, uc, l * sizeof(unicode_char));
p->len += l; return 0; }
void unicode_buf_append_char(struct unicode_buf *dst, const char *str, size_t cnt) { unicode_char unicode_buf[256];
while (cnt) { size_t n=sizeof(unicode_buf)/sizeof(unicode_buf[0]), i;
if (n > cnt) n=cnt;
for (i=0; i<n; ++i) unicode_buf[i]=(unsigned char)str[i];
str += n; cnt -= n; unicode_buf_append(dst, unicode_buf, i); } }
void unicode_buf_remove(struct unicode_buf *p, size_t pos, size_t cnt) { if (pos > p->len) pos=p->len;
if (cnt > p->len-pos) cnt=p->len-pos;
if (cnt) memmove(p->ptr+pos+cnt, p->ptr+pos, p->len-pos-cnt); p->len -= cnt; }
int unicode_buf_cmp(const struct unicode_buf *a, const struct unicode_buf *b) { size_t i;
for (i=0; i<a->len && i<b->len; i++) { if (a->ptr[i] < b->ptr[i]) return -1; if (a->ptr[i] > b->ptr[i]) return 1; }
return (a->len < b->len ? -1:a->len > b->len ? 1:0); }
int unicode_buf_cmp_str(const struct unicode_buf *p, const char *c, size_t cl) { size_t i;
for (i=0; i<p->len && i < cl; ++i) { if (p->ptr[i] < c[i]) return -1;
if (p->ptr[i] > c[i]) return 1; }
return (p->len < cl ? -1: p->len > cl ? 1:0); }
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