kmx.io/kv/kv_unquote.c

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• Hash : 78c072be
  Author : Thomas de Grivel
  Date : 2022-01-03T17:17:35
  

  wip unquote
  

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• kv_unquote.c

• /*
   * kv - key value text file format
   *
   * Copyright 2022 Thomas de Grivel
  */
  
  #include <assert.h>
  #include <stdlib.h>
  #include <string.h>
  #include "kv.h"
  
  int kv_unquote (s_buffer *b)
  {
    
  }
  
  int kv_quote_delim (char **str, size_t *str_size, const char *delim)
  {
    char  *s;
    size_t delim_len;
    size_t len;
    assert(str);
    assert(str_size);
    assert(delim);
    if (kv_check_delimiter(delim)) {
      fprintf(stderr, "bad delimiter: %s\n", delim);
      return 1;
    }
    if (kv_contains_delimiter(*str, *str_size, delim))
      return 1;
    delim_len = strlen(delim);
    len = *str_size + delim_len * 2 + 3;
    s = calloc(len + 1, 1);
    if (!s)
      return -1;
    s[0] = '<'; s[1] = '<';
    memcpy(s + 2, delim, delim_len);
    s[2 + delim_len] = '\n';
    memcpy(s + delim_len + 3, *str, *str_size);
    memcpy(s + *str_size + delim_len + 3, delim, delim_len);
    *str = s;
    *str_size = len;
    return 0;
  }
  
  int kv_quote_double_quotes (char **str, size_t *str_size)
  {
    size_t i = 0;
    size_t o = 0;
    size_t res;
    char  *s;
    assert(str);
    assert(str_size);
    res = kv_count_quotable_chars(*str, *str_size);
    s = calloc(*str_size + res + 3, 1);
    if (!s)
      return -1;
    s[o++] = '"';
    while (i < *str_size) {
      int c = (*str)[i++];
      if (kv_is_quotable_char(c))
        s[o++] = '\\';
      switch (c) {
      case 0:    s[o++] = '0'; break;
      case '\n': s[o++] = 'n'; break;
      case '\r': s[o++] = 'r'; break;
      case '\t': s[o++] = 't'; break;
      case '\v': s[o++] = 'v'; break;
      default: s[o++] = c;
      }
    }
    s[o++] = '"';
    assert(o == *str_size + res + 2);
    s[o] = 0;
    *str = s;
    *str_size = o;
    return 0;
  }
  
  int kv_quote_triple_double_quotes (char **str, size_t *str_size)
  {
    char *e;
    char *s;
    if (kv_contains_triple_double_quotes(*str, *str_size))
      return 1;
    s = calloc(*str_size + 8, 1);
    if (!s)
      return -1;
    s[0] = '"'; s[1] = '"'; s[2] = '"'; s[3] = '\n';
    memcpy(s + 4, *str, *str_size);
    e = s + 4 + *str_size;
    e[0] = '"'; e[1] = '"'; e[2] = '"'; e[3] = 0;
    *str = s;
    *str_size = *str_size + 7;
    return 0;
  }
  

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