str.c

   1 #include <ctype.h>
   2 #include <string.h>
   3 #include "str.h"
   4
   5 char *put_mem(char *dst, char *src, int len)
   6 {
   7         memcpy(dst, src, len);
   8         return dst + len;
   9 }
  10
  11 char *put_str(char *dst, char *src)
  12 {
  13         int len = strchr(src, '\0') - src;
  14         memcpy(dst, src, len + 1);
  15         return dst + len;
  16 }
  17
  18 static char *put_int_fill(char *s, int n, int w, int f)
  19 {
  20         int i;
  21         for (i = 0; i < w; i++) {
  22                 s[w - i - 1] = n || !i ? '0' + n % 10 : f;
  23                 n = n / 10;
  24         }
  25         return s + w;
  26 }
  27
  28 char *put_int(char *s, int n, int w)
  29 {
  30         return put_int_fill(s, n, w, ' ');
  31 }
  32
  33 char *put_intz(char *s, int n, int w)
  34 {
  35         return put_int_fill(s, n, w, '0');
  36 }
  37
  38 char *cut_word(char *dst, char *s)
  39 {
  40         while (*s && isspace(*s))
  41                 s++;
  42         while (*s && !isspace(*s))
  43                 *dst++ = *s++;
  44         *dst = '\0';
  45         return s;
  46 }
  47
  48 /* return 1 if r starts with s */
  49 int startswith(char *r, char *s)
  50 {
  51         while (*s)
  52                 if (tolower(*s++) != tolower(*r++))
  53                         return 0;
  54         return 1;
  55 }