Mercurial > vim
annotate src/json.c @ 8228:a0e552c51c34 v7.4.1407
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Author: Bram Moolenaar <Bram@vim.org>
Date: Tue Feb 23 21:26:43 2016 +0100
patch 7.4.1407
Problem: json_encode() does not handle NaN and inf properly. (David
Barnett)
Solution: For JSON turn them into "null". For JS use "NaN" and "Infinity".
Add isnan().
author | Christian Brabandt <cb@256bit.org> |
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date | Tue, 23 Feb 2016 21:30:08 +0100 |
parents | 5dacbd22fefd |
children | 51ca0cee512e |
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1 /* vi:set ts=8 sts=4 sw=4: |
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2 * |
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3 * VIM - Vi IMproved by Bram Moolenaar |
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4 * |
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5 * Do ":help uganda" in Vim to read copying and usage conditions. |
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6 * Do ":help credits" in Vim to see a list of people who contributed. |
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7 * See README.txt for an overview of the Vim source code. |
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8 */ |
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9 |
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10 /* |
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11 * json.c: Encoding and decoding JSON. |
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12 * |
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13 * Follows this standard: https://tools.ietf.org/html/rfc7159.html |
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14 */ |
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15 |
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16 #include "vim.h" |
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17 |
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18 #if defined(FEAT_EVAL) || defined(PROTO) |
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19 |
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20 #if defined(FEAT_FLOAT) && defined(HAVE_MATH_H) |
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21 /* for isnan() and isinf() */ |
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22 # include <math.h> |
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23 #endif |
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24 |
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25 static int json_encode_item(garray_T *gap, typval_T *val, int copyID, int options); |
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26 static int json_decode_item(js_read_T *reader, typval_T *res, int options); |
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27 |
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28 /* |
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29 * Encode "val" into a JSON format string. |
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30 * The result is in allocated memory. |
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31 * The result is empty when encoding fails. |
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32 * "options" can be JSON_JS or zero; |
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33 */ |
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34 char_u * |
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35 json_encode(typval_T *val, int options) |
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36 { |
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37 garray_T ga; |
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38 |
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39 /* Store bytes in the growarray. */ |
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40 ga_init2(&ga, 1, 4000); |
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41 if (json_encode_item(&ga, val, get_copyID(), options) == FAIL) |
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42 { |
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43 vim_free(ga.ga_data); |
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44 return vim_strsave((char_u *)""); |
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45 } |
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46 return ga.ga_data; |
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47 } |
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48 |
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49 /* |
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50 * Encode ["nr", "val"] into a JSON format string in allocated memory. |
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51 * "options" can be JSON_JS or zero; |
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52 * Returns NULL when out of memory. |
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53 */ |
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54 char_u * |
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55 json_encode_nr_expr(int nr, typval_T *val, int options) |
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56 { |
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57 typval_T listtv; |
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58 typval_T nrtv; |
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59 char_u *text; |
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60 |
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61 nrtv.v_type = VAR_NUMBER; |
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62 nrtv.vval.v_number = nr; |
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63 if (rettv_list_alloc(&listtv) == FAIL) |
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64 return NULL; |
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65 if (list_append_tv(listtv.vval.v_list, &nrtv) == FAIL |
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66 || list_append_tv(listtv.vval.v_list, val) == FAIL) |
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67 { |
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68 list_unref(listtv.vval.v_list); |
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69 return NULL; |
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70 } |
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71 |
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72 text = json_encode(&listtv, options); |
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73 list_unref(listtv.vval.v_list); |
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74 return text; |
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75 } |
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76 |
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77 static void |
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78 write_string(garray_T *gap, char_u *str) |
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79 { |
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80 char_u *res = str; |
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81 char_u numbuf[NUMBUFLEN]; |
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82 |
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83 if (res == NULL) |
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84 ga_concat(gap, (char_u *)"null"); |
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85 else |
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86 { |
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87 ga_append(gap, '"'); |
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88 while (*res != NUL) |
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89 { |
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90 int c = PTR2CHAR(res); |
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91 |
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92 switch (c) |
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93 { |
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94 case 0x08: |
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95 ga_append(gap, '\\'); ga_append(gap, 'b'); break; |
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96 case 0x09: |
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97 ga_append(gap, '\\'); ga_append(gap, 't'); break; |
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98 case 0x0a: |
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99 ga_append(gap, '\\'); ga_append(gap, 'n'); break; |
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100 case 0x0c: |
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101 ga_append(gap, '\\'); ga_append(gap, 'f'); break; |
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102 case 0x0d: |
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103 ga_append(gap, '\\'); ga_append(gap, 'r'); break; |
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104 case 0x22: /* " */ |
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105 case 0x5c: /* \ */ |
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106 ga_append(gap, '\\'); |
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107 ga_append(gap, c); |
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108 break; |
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109 default: |
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110 if (c >= 0x20) |
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111 { |
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112 #ifdef FEAT_MBYTE |
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113 numbuf[mb_char2bytes(c, numbuf)] = NUL; |
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114 #else |
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115 numbuf[0] = c; |
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116 numbuf[1] = NUL; |
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117 #endif |
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118 ga_concat(gap, numbuf); |
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119 } |
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120 else |
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121 { |
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122 vim_snprintf((char *)numbuf, NUMBUFLEN, |
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123 "\\u%04lx", (long)c); |
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124 ga_concat(gap, numbuf); |
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125 } |
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126 } |
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127 mb_cptr_adv(res); |
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128 } |
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129 ga_append(gap, '"'); |
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130 } |
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131 } |
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132 |
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133 /* |
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134 * Return TRUE if "key" can be used without quotes. |
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135 * That is when it starts with a letter and only contains letters, digits and |
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136 * underscore. |
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137 */ |
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138 static int |
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139 is_simple_key(char_u *key) |
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140 { |
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141 char_u *p; |
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142 |
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143 if (!ASCII_ISALPHA(*key)) |
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144 return FALSE; |
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145 for (p = key + 1; *p != NUL; ++p) |
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146 if (!ASCII_ISALPHA(*p) && *p != '_' && !vim_isdigit(*p)) |
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147 return FALSE; |
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148 return TRUE; |
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149 } |
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150 |
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151 /* |
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152 * Encode "val" into "gap". |
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153 * Return FAIL or OK. |
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154 */ |
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155 static int |
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156 json_encode_item(garray_T *gap, typval_T *val, int copyID, int options) |
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157 { |
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158 char_u numbuf[NUMBUFLEN]; |
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159 char_u *res; |
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160 list_T *l; |
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161 dict_T *d; |
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162 |
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163 switch (val->v_type) |
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164 { |
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165 case VAR_SPECIAL: |
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166 switch (val->vval.v_number) |
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167 { |
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168 case VVAL_FALSE: ga_concat(gap, (char_u *)"false"); break; |
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169 case VVAL_TRUE: ga_concat(gap, (char_u *)"true"); break; |
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170 case VVAL_NONE: if ((options & JSON_JS) != 0 |
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171 && (options & JSON_NO_NONE) == 0) |
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172 /* empty item */ |
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173 break; |
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174 /* FALLTHROUGH */ |
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175 case VVAL_NULL: ga_concat(gap, (char_u *)"null"); break; |
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176 } |
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177 break; |
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178 |
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179 case VAR_NUMBER: |
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180 vim_snprintf((char *)numbuf, NUMBUFLEN, "%ld", |
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181 (long)val->vval.v_number); |
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182 ga_concat(gap, numbuf); |
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183 break; |
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184 |
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185 case VAR_STRING: |
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186 res = val->vval.v_string; |
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187 write_string(gap, res); |
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188 break; |
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189 |
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190 case VAR_FUNC: |
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191 case VAR_JOB: |
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192 case VAR_CHANNEL: |
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193 /* no JSON equivalent TODO: better error */ |
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194 EMSG(_(e_invarg)); |
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195 return FAIL; |
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196 |
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197 case VAR_LIST: |
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198 l = val->vval.v_list; |
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199 if (l == NULL) |
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200 ga_concat(gap, (char_u *)"null"); |
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201 else |
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202 { |
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203 if (l->lv_copyID == copyID) |
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204 ga_concat(gap, (char_u *)"[]"); |
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205 else |
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206 { |
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207 listitem_T *li; |
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208 |
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209 l->lv_copyID = copyID; |
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210 ga_append(gap, '['); |
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211 for (li = l->lv_first; li != NULL && !got_int; ) |
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212 { |
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213 if (json_encode_item(gap, &li->li_tv, copyID, |
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214 options & JSON_JS) == FAIL) |
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215 return FAIL; |
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216 if ((options & JSON_JS) |
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217 && li->li_next == NULL |
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218 && li->li_tv.v_type == VAR_SPECIAL |
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219 && li->li_tv.vval.v_number == VVAL_NONE) |
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220 /* add an extra comma if the last item is v:none */ |
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221 ga_append(gap, ','); |
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222 li = li->li_next; |
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223 if (li != NULL) |
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224 ga_append(gap, ','); |
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225 } |
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226 ga_append(gap, ']'); |
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227 l->lv_copyID = 0; |
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228 } |
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229 } |
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230 break; |
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231 |
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232 case VAR_DICT: |
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233 d = val->vval.v_dict; |
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234 if (d == NULL) |
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235 ga_concat(gap, (char_u *)"null"); |
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236 else |
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237 { |
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238 if (d->dv_copyID == copyID) |
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239 ga_concat(gap, (char_u *)"{}"); |
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240 else |
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241 { |
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242 int first = TRUE; |
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243 int todo = (int)d->dv_hashtab.ht_used; |
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244 hashitem_T *hi; |
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245 |
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246 d->dv_copyID = copyID; |
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247 ga_append(gap, '{'); |
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248 |
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249 for (hi = d->dv_hashtab.ht_array; todo > 0 && !got_int; |
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250 ++hi) |
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251 if (!HASHITEM_EMPTY(hi)) |
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252 { |
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253 --todo; |
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254 if (first) |
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255 first = FALSE; |
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256 else |
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257 ga_append(gap, ','); |
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258 if ((options & JSON_JS) |
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259 && is_simple_key(hi->hi_key)) |
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260 ga_concat(gap, hi->hi_key); |
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261 else |
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262 write_string(gap, hi->hi_key); |
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263 ga_append(gap, ':'); |
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264 if (json_encode_item(gap, &dict_lookup(hi)->di_tv, |
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265 copyID, options | JSON_NO_NONE) == FAIL) |
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266 return FAIL; |
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267 } |
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268 ga_append(gap, '}'); |
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269 d->dv_copyID = 0; |
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270 } |
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271 } |
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272 break; |
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273 |
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274 case VAR_FLOAT: |
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275 #ifdef FEAT_FLOAT |
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276 # if defined(HAVE_MATH_H) |
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277 if ((options & JSON_JS) && isnan(val->vval.v_float)) |
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278 ga_concat(gap, (char_u *)"NaN"); |
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279 else if ((options & JSON_JS) && isinf(val->vval.v_float)) |
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280 ga_concat(gap, (char_u *)"Infinity"); |
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281 else if (isnan(val->vval.v_float) || isinf(val->vval.v_float)) |
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282 ga_concat(gap, (char_u *)"null"); |
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283 else |
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284 # endif |
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285 { |
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286 vim_snprintf((char *)numbuf, NUMBUFLEN, "%g", |
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287 val->vval.v_float); |
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288 ga_concat(gap, numbuf); |
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289 } |
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290 break; |
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291 #endif |
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292 case VAR_UNKNOWN: |
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293 EMSG2(_(e_intern2), "json_encode_item()"); |
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294 return FAIL; |
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295 } |
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296 return OK; |
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297 } |
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298 |
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299 /* |
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300 * When "reader" has less than NUMBUFLEN bytes available, call the fill |
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301 * callback to get more. |
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302 */ |
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303 static void |
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304 fill_numbuflen(js_read_T *reader) |
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305 { |
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306 if (reader->js_fill != NULL && (int)(reader->js_end - reader->js_buf) |
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307 - reader->js_used < NUMBUFLEN) |
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308 { |
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309 if (reader->js_fill(reader)) |
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310 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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311 } |
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312 } |
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313 |
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314 /* |
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315 * Skip white space in "reader". All characters <= space are considered white |
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316 * space. |
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317 * Also tops up readahead when needed. |
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318 */ |
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319 static void |
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320 json_skip_white(js_read_T *reader) |
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321 { |
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322 int c; |
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323 |
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324 for (;;) |
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325 { |
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326 c = reader->js_buf[reader->js_used]; |
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327 if (reader->js_fill != NULL && c == NUL) |
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328 { |
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329 if (reader->js_fill(reader)) |
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330 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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331 continue; |
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332 } |
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333 if (c == NUL || c > ' ') |
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334 break; |
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335 ++reader->js_used; |
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336 } |
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337 fill_numbuflen(reader); |
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338 } |
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339 |
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340 static int |
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341 json_decode_array(js_read_T *reader, typval_T *res, int options) |
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342 { |
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343 char_u *p; |
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344 typval_T item; |
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345 listitem_T *li; |
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346 int ret; |
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347 |
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348 if (res != NULL && rettv_list_alloc(res) == FAIL) |
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349 { |
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350 res->v_type = VAR_SPECIAL; |
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351 res->vval.v_number = VVAL_NONE; |
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352 return FAIL; |
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353 } |
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354 ++reader->js_used; /* consume the '[' */ |
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355 |
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356 while (TRUE) |
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357 { |
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358 json_skip_white(reader); |
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359 p = reader->js_buf + reader->js_used; |
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360 if (*p == NUL) |
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361 return MAYBE; |
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362 if (*p == ']') |
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363 { |
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364 ++reader->js_used; /* consume the ']' */ |
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365 break; |
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366 } |
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367 |
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368 ret = json_decode_item(reader, res == NULL ? NULL : &item, options); |
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369 if (ret != OK) |
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370 return ret; |
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371 if (res != NULL) |
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372 { |
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373 li = listitem_alloc(); |
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374 if (li == NULL) |
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375 { |
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376 clear_tv(&item); |
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377 return FAIL; |
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378 } |
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379 li->li_tv = item; |
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380 list_append(res->vval.v_list, li); |
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381 } |
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382 |
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383 json_skip_white(reader); |
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384 p = reader->js_buf + reader->js_used; |
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385 if (*p == ',') |
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386 ++reader->js_used; |
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387 else if (*p != ']') |
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388 { |
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389 if (*p == NUL) |
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390 return MAYBE; |
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391 return FAIL; |
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392 } |
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393 } |
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394 return OK; |
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395 } |
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396 |
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397 static int |
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398 json_decode_object(js_read_T *reader, typval_T *res, int options) |
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399 { |
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400 char_u *p; |
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401 typval_T tvkey; |
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402 typval_T item; |
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403 dictitem_T *di; |
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404 char_u buf[NUMBUFLEN]; |
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405 char_u *key = NULL; |
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406 int ret; |
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407 |
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408 if (res != NULL && rettv_dict_alloc(res) == FAIL) |
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409 { |
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410 res->v_type = VAR_SPECIAL; |
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411 res->vval.v_number = VVAL_NONE; |
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412 return FAIL; |
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413 } |
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414 ++reader->js_used; /* consume the '{' */ |
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415 |
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416 while (TRUE) |
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417 { |
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418 json_skip_white(reader); |
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419 p = reader->js_buf + reader->js_used; |
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420 if (*p == NUL) |
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421 return MAYBE; |
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422 if (*p == '}') |
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423 { |
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424 ++reader->js_used; /* consume the '}' */ |
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425 break; |
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426 } |
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427 |
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428 if ((options & JSON_JS) && reader->js_buf[reader->js_used] != '"') |
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429 { |
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430 /* accept a key that is not in quotes */ |
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431 key = p = reader->js_buf + reader->js_used; |
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432 while (*p != NUL && *p != ':' && *p > ' ') |
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433 ++p; |
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434 tvkey.v_type = VAR_STRING; |
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435 tvkey.vval.v_string = vim_strnsave(key, (int)(p - key)); |
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436 reader->js_used += (int)(p - key); |
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437 key = tvkey.vval.v_string; |
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438 } |
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439 else |
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440 { |
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441 ret = json_decode_item(reader, res == NULL ? NULL : &tvkey, |
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442 options); |
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443 if (ret != OK) |
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444 return ret; |
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445 if (res != NULL) |
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446 { |
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447 key = get_tv_string_buf_chk(&tvkey, buf); |
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448 if (key == NULL || *key == NUL) |
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commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
449 { |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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|
450 clear_tv(&tvkey); |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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diff
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|
451 return FAIL; |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
452 } |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
453 } |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
454 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
455 |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
456 json_skip_white(reader); |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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|
457 p = reader->js_buf + reader->js_used; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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458 if (*p != ':') |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
459 { |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
460 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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|
461 clear_tv(&tvkey); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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|
462 if (*p == NUL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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463 return MAYBE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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464 return FAIL; |
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465 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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|
466 ++reader->js_used; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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|
467 json_skip_white(reader); |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
468 |
7967
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
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469 ret = json_decode_item(reader, res == NULL ? NULL : &item, options); |
7883
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commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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470 if (ret != OK) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
471 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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|
472 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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473 clear_tv(&tvkey); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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474 return ret; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
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475 } |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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|
476 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
477 if (res != NULL) |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
478 { |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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479 di = dictitem_alloc(key); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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480 clear_tv(&tvkey); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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changeset
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481 if (di == NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
482 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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483 clear_tv(&item); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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484 return FAIL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
485 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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486 di->di_tv = item; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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487 if (dict_add(res->vval.v_dict, di) == FAIL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
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488 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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489 dictitem_free(di); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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490 return FAIL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
491 } |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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|
492 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
493 |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
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494 json_skip_white(reader); |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
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495 p = reader->js_buf + reader->js_used; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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496 if (*p == ',') |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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497 ++reader->js_used; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
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498 else if (*p != '}') |
7883
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commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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changeset
|
499 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
500 if (*p == NUL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
501 return MAYBE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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diff
changeset
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502 return FAIL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
503 } |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
504 } |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
505 return OK; |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
506 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
507 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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changeset
|
508 static int |
7712
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|
509 json_decode_string(js_read_T *reader, typval_T *res) |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
510 { |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
511 garray_T ga; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
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parents:
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changeset
|
512 int len; |
7883
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commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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|
513 char_u *p; |
7712
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|
514 int c; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
515 long nr; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
516 char_u buf[NUMBUFLEN]; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
517 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
518 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
519 ga_init2(&ga, 1, 200); |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
520 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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changeset
|
521 p = reader->js_buf + reader->js_used + 1; /* skip over " */ |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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522 while (*p != '"') |
7712
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|
523 { |
7883
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commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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changeset
|
524 if (*p == NUL || p[1] == NUL |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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|
525 #ifdef FEAT_MBYTE |
98a96e0ca73b
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526 || utf_ptr2len(p) < utf_byte2len(*p) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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527 #endif |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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changeset
|
528 ) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
529 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
530 if (reader->js_fill == NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
531 break; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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|
532 len = (int)(reader->js_end - p); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
533 reader->js_used = (int)(p - reader->js_buf); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
534 if (!reader->js_fill(reader)) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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changeset
|
535 break; /* didn't get more */ |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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diff
changeset
|
536 p = reader->js_buf + reader->js_used; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
537 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
538 continue; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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539 } |
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540 |
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541 if (*p == '\\') |
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542 { |
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543 c = -1; |
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544 switch (p[1]) |
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545 { |
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546 case '\\': c = '\\'; break; |
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547 case '"': c = '"'; break; |
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548 case 'b': c = BS; break; |
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549 case 't': c = TAB; break; |
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550 case 'n': c = NL; break; |
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551 case 'f': c = FF; break; |
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552 case 'r': c = CAR; break; |
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553 case 'u': |
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554 if (reader->js_fill != NULL |
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555 && (int)(reader->js_end - p) < NUMBUFLEN) |
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556 { |
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557 reader->js_used = (int)(p - reader->js_buf); |
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558 if (reader->js_fill(reader)) |
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559 { |
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560 p = reader->js_buf + reader->js_used; |
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561 reader->js_end = reader->js_buf |
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562 + STRLEN(reader->js_buf); |
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563 } |
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564 } |
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565 vim_str2nr(p + 2, NULL, &len, |
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566 STR2NR_HEX + STR2NR_FORCE, &nr, NULL, 4); |
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567 p += len + 2; |
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568 if (res != NULL) |
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569 { |
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570 #ifdef FEAT_MBYTE |
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571 buf[(*mb_char2bytes)((int)nr, buf)] = NUL; |
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572 ga_concat(&ga, buf); |
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573 #else |
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574 ga_append(&ga, nr); |
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575 #endif |
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576 } |
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577 break; |
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578 default: |
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579 /* not a special char, skip over \ */ |
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580 ++p; |
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581 continue; |
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582 } |
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583 if (c > 0) |
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584 { |
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585 p += 2; |
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586 if (res != NULL) |
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587 ga_append(&ga, c); |
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588 } |
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589 } |
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590 else |
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591 { |
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592 len = MB_PTR2LEN(p); |
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593 if (res != NULL) |
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594 { |
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595 if (ga_grow(&ga, len) == FAIL) |
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596 { |
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597 ga_clear(&ga); |
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598 return FAIL; |
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599 } |
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600 mch_memmove((char *)ga.ga_data + ga.ga_len, p, (size_t)len); |
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601 ga.ga_len += len; |
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602 } |
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603 p += len; |
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604 } |
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605 } |
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606 |
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607 reader->js_used = (int)(p - reader->js_buf); |
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608 if (*p == '"') |
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609 { |
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610 ++reader->js_used; |
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611 if (res != NULL) |
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612 { |
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613 res->v_type = VAR_STRING; |
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614 res->vval.v_string = ga.ga_data; |
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615 } |
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616 return OK; |
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617 } |
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618 if (res != NULL) |
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619 { |
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620 res->v_type = VAR_SPECIAL; |
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621 res->vval.v_number = VVAL_NONE; |
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622 ga_clear(&ga); |
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623 } |
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624 return MAYBE; |
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625 } |
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626 |
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627 /* |
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628 * Decode one item and put it in "res". If "res" is NULL only advance. |
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629 * Must already have skipped white space. |
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630 * |
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631 * Return FAIL for a decoding error. |
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632 * Return MAYBE for an incomplete message. |
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633 */ |
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634 static int |
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635 json_decode_item(js_read_T *reader, typval_T *res, int options) |
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636 { |
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637 char_u *p; |
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638 int len; |
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639 |
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640 fill_numbuflen(reader); |
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641 p = reader->js_buf + reader->js_used; |
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642 switch (*p) |
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643 { |
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644 case '[': /* array */ |
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645 return json_decode_array(reader, res, options); |
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646 |
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647 case '{': /* object */ |
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648 return json_decode_object(reader, res, options); |
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649 |
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650 case '"': /* string */ |
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651 return json_decode_string(reader, res); |
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652 |
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653 case ',': /* comma: empty item */ |
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654 if ((options & JSON_JS) == 0) |
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655 return FAIL; |
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656 /* FALLTHROUGH */ |
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657 case NUL: /* empty */ |
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658 if (res != NULL) |
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659 { |
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660 res->v_type = VAR_SPECIAL; |
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661 res->vval.v_number = VVAL_NONE; |
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662 } |
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663 return OK; |
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664 |
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665 default: |
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666 if (VIM_ISDIGIT(*p) || *p == '-') |
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667 { |
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668 char_u *sp = p; |
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669 |
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670 #ifdef FEAT_FLOAT |
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671 if (*sp == '-') |
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672 { |
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673 ++sp; |
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674 if (*sp == NUL) |
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675 return MAYBE; |
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676 if (!VIM_ISDIGIT(*sp)) |
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677 return FAIL; |
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678 } |
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679 sp = skipdigits(sp); |
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680 if (*sp == '.' || *sp == 'e' || *sp == 'E') |
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681 { |
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682 if (res == NULL) |
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683 { |
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684 float_T f; |
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685 |
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686 len = string2float(p, &f); |
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687 } |
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688 else |
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689 { |
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690 res->v_type = VAR_FLOAT; |
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691 len = string2float(p, &res->vval.v_float); |
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692 } |
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693 } |
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694 else |
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695 #endif |
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696 { |
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697 long nr; |
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698 |
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699 vim_str2nr(reader->js_buf + reader->js_used, |
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700 NULL, &len, 0, /* what */ |
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701 &nr, NULL, 0); |
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702 if (res != NULL) |
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703 { |
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704 res->v_type = VAR_NUMBER; |
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705 res->vval.v_number = nr; |
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706 } |
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707 } |
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708 reader->js_used += len; |
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709 return OK; |
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710 } |
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711 if (STRNICMP((char *)p, "false", 5) == 0) |
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712 { |
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713 reader->js_used += 5; |
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714 if (res != NULL) |
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715 { |
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716 res->v_type = VAR_SPECIAL; |
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717 res->vval.v_number = VVAL_FALSE; |
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718 } |
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719 return OK; |
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720 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
721 if (STRNICMP((char *)p, "true", 4) == 0) |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
722 { |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
723 reader->js_used += 4; |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
724 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
725 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
726 res->v_type = VAR_SPECIAL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
727 res->vval.v_number = VVAL_TRUE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
728 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
729 return OK; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
730 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
731 if (STRNICMP((char *)p, "null", 4) == 0) |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
732 { |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
733 reader->js_used += 4; |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
734 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
735 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
736 res->v_type = VAR_SPECIAL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
737 res->vval.v_number = VVAL_NULL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
738 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
739 return OK; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
740 } |
8228
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
741 #ifdef FEAT_FLOAT |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
742 if (STRNICMP((char *)p, "NaN", 3) == 0) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
743 { |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
744 reader->js_used += 3; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
745 if (res != NULL) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
746 { |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
747 res->v_type = VAR_FLOAT; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
748 res->vval.v_float = 0.0 / 0.0; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
749 } |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
750 return OK; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
751 } |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
752 if (STRNICMP((char *)p, "Infinity", 8) == 0) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
753 { |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
754 reader->js_used += 8; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
755 if (res != NULL) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
756 { |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
757 res->v_type = VAR_FLOAT; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
758 res->vval.v_float = 1.0 / 0.0; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
759 } |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
760 return OK; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
761 } |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
762 #endif |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
763 /* check for truncated name */ |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
764 len = (int)(reader->js_end - (reader->js_buf + reader->js_used)); |
8228
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
765 if ( |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
766 (len < 5 && STRNICMP((char *)p, "false", len) == 0) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
767 #ifdef FEAT_FLOAT |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
768 || (len < 8 && STRNICMP((char *)p, "Infinity", len) == 0) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
769 || (len < 3 && STRNICMP((char *)p, "NaN", len) == 0) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
770 #endif |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
771 || (len < 4 && (STRNICMP((char *)p, "true", len) == 0 |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
772 || STRNICMP((char *)p, "null", len) == 0))) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
773 return MAYBE; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
774 break; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
775 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
776 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
777 if (res != NUL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
778 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
779 res->v_type = VAR_SPECIAL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
780 res->vval.v_number = VVAL_NONE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
781 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
782 return FAIL; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
783 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
784 |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
785 /* |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
786 * Decode the JSON from "reader" and store the result in "res". |
7967
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
7965
diff
changeset
|
787 * "options" can be JSON_JS or zero; |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
788 * Return FAIL if not the whole message was consumed. |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
789 */ |
7868
17e6ff1a74f1
commit https://github.com/vim/vim/commit/19d2f1589850d7db1ce77efec052929246f156e2
Christian Brabandt <cb@256bit.org>
parents:
7864
diff
changeset
|
790 int |
7967
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
7965
diff
changeset
|
791 json_decode_all(js_read_T *reader, typval_T *res, int options) |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
792 { |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
793 int ret; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
794 |
7967
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
7965
diff
changeset
|
795 /* We find the end once, to avoid calling strlen() many times. */ |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
796 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
797 json_skip_white(reader); |
7967
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
7965
diff
changeset
|
798 ret = json_decode_item(reader, res, options); |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
799 if (ret != OK) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
800 return FAIL; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
801 json_skip_white(reader); |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
802 if (reader->js_buf[reader->js_used] != NUL) |
7868
17e6ff1a74f1
commit https://github.com/vim/vim/commit/19d2f1589850d7db1ce77efec052929246f156e2
Christian Brabandt <cb@256bit.org>
parents:
7864
diff
changeset
|
803 return FAIL; |
17e6ff1a74f1
commit https://github.com/vim/vim/commit/19d2f1589850d7db1ce77efec052929246f156e2
Christian Brabandt <cb@256bit.org>
parents:
7864
diff
changeset
|
804 return OK; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
805 } |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
806 |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
807 /* |
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808 * Decode the JSON from "reader" and store the result in "res". |
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809 * "options" can be JSON_JS or zero; |
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810 * Return FAIL if the message has a decoding error or the message is |
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811 * truncated. Consumes the message anyway. |
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812 */ |
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813 int |
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814 json_decode(js_read_T *reader, typval_T *res, int options) |
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815 { |
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816 int ret; |
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817 |
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818 /* We find the end once, to avoid calling strlen() many times. */ |
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819 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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820 json_skip_white(reader); |
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821 ret = json_decode_item(reader, res, options); |
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822 json_skip_white(reader); |
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823 |
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824 return ret == OK ? OK : FAIL; |
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825 } |
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826 |
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827 /* |
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828 * Decode the JSON from "reader" to find the end of the message. |
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829 * "options" can be JSON_JS or zero; |
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830 * Return FAIL if the message has a decoding error. |
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831 * Return MAYBE if the message is truncated, need to read more. |
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832 * This only works reliable if the message contains an object, array or |
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833 * string. A number might be trucated without knowing. |
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834 * Does not advance the reader. |
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835 */ |
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836 int |
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837 json_find_end(js_read_T *reader, int options) |
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838 { |
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839 int used_save = reader->js_used; |
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840 int ret; |
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841 |
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842 /* We find the end once, to avoid calling strlen() many times. */ |
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843 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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844 json_skip_white(reader); |
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845 ret = json_decode_item(reader, NULL, options); |
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846 reader->js_used = used_save; |
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847 return ret; |
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848 } |
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849 #endif |