git.m6w6.name Git - m6w6/ext-http/blob - php_http_strlist.c

   1 /*
   2     +--------------------------------------------------------------------+
   3     | PECL :: http                                                       |
   4     +--------------------------------------------------------------------+
   5     | Redistribution and use in source and binary forms, with or without |
   6     | modification, are permitted provided that the conditions mentioned |
   7     | in the accompanying LICENSE file are met.                          |
   8     +--------------------------------------------------------------------+
   9     | Copyright (c) 2004-2014, Michael Wallner <mike@php.net>            |
  10     +--------------------------------------------------------------------+
  11 */
  12
  13 #include "php_http_api.h"
  14
  15 php_http_strlist_iterator_t *php_http_strlist_iterator_init(php_http_strlist_iterator_t *iter, const char list[], unsigned factor)
  16 {
  17         if (!iter) {
  18                 iter = emalloc(sizeof(*iter));
  19         }
  20         memset(iter, 0, sizeof(*iter));
  21
  22         iter->p = &list[0];
  23         iter->factor = factor;
  24
  25         return iter;
  26 }
  27
  28 const char *php_http_strlist_iterator_this(php_http_strlist_iterator_t *iter, unsigned *id)
  29 {
  30         if (id) {
  31                 *id = (iter->major + 1) * iter->factor + iter->minor;
  32         }
  33
  34         return iter->p;
  35 }
  36
  37 const char *php_http_strlist_iterator_next(php_http_strlist_iterator_t *iter)
  38 {
  39         if (*iter->p) {
  40                 while (*iter->p) {
  41                         ++iter->p;
  42                 }
  43                 ++iter->p;
  44                 ++iter->minor;
  45
  46                 if (!*iter->p) {
  47                         ++iter->p;
  48                         ++iter->major;
  49                         iter->minor = 0;
  50                 }
  51         }
  52
  53     return iter->p;
  54 }
  55
  56 void php_http_strlist_iterator_dtor(php_http_strlist_iterator_t *iter)
  57 {
  58
  59 }
  60
  61 void php_http_strlist_iterator_free(php_http_strlist_iterator_t **iter)
  62 {
  63         if (*iter) {
  64                 efree(*iter);
  65                 *iter = NULL;
  66         }
  67 }
  68
  69 const char *php_http_strlist_find(const char list[], unsigned factor, unsigned item)
  70 {
  71         unsigned M = 0, m = 0, major, minor;
  72         const char *p = &list[0];
  73
  74         if (factor) {
  75                 major = (item / factor) - 1;
  76                 minor = item % factor;
  77         } else {
  78                 major = 0;
  79                 minor = item;
  80         }
  81     while (*p && major != M++) {
  82         while (*p) {
  83             while (*p) {
  84                 ++p;
  85             }
  86             ++p;
  87         }
  88         ++p;
  89     }
  90
  91     while (*p && minor != m++) {
  92         while (*p) {
  93             ++p;
  94         }
  95         ++p;
  96     }
  97
  98     return p;
  99 }
 100
 101 /*
 102  * Local variables:
 103  * tab-width: 4
 104  * c-basic-offset: 4
 105  * End:
 106  * vim600: noet sw=4 ts=4 fdm=marker
 107  * vim<600: noet sw=4 ts=4
 108  */
 109