Mercurial > vim
annotate src/json.c @ 8275:ff900e499f79 v7.4.1430
commit https://github.com/vim/vim/commit/7ce686c990ea8c490d16be7f1c6bd95eb48816f9
Author: Bram Moolenaar <Bram@vim.org>
Date: Sat Feb 27 16:33:22 2016 +0100
patch 7.4.1430
Problem: When encoding JSON, turning NaN and Infinity into null without
giving an error is not useful.
Solution: Pass NaN and Infinity on. If the receiver can't handle them it
will generate the error.
author | Christian Brabandt <cb@256bit.org> |
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date | Sat, 27 Feb 2016 16:45:04 +0100 |
parents | 51ca0cee512e |
children | b8a56d4d83e0 |
rev | line source |
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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) |
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21 # include <float.h> |
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22 # if defined(HAVE_MATH_H) |
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23 /* for isnan() and isinf() */ |
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24 # include <math.h> |
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25 # endif |
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26 # if defined(WIN32) && !defined(isnan) |
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27 # define isnan(x) _isnan(x) |
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28 # define isinf(x) (!_finite(x) && !_isnan(x)) |
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29 # endif |
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30 # if !defined(INFINITY) && defined(DBL_MAX) |
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31 # define INFINITY (DBL_MAX+DBL_MAX) |
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32 # endif |
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33 # if !defined(NAN) && defined(INFINITY) |
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34 # define NAN (INFINITY-INFINITY) |
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35 # endif |
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36 #endif |
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37 |
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38 static int json_encode_item(garray_T *gap, typval_T *val, int copyID, int options); |
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39 static int json_decode_item(js_read_T *reader, typval_T *res, int options); |
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40 |
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41 /* |
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42 * Encode "val" into a JSON format string. |
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43 * The result is in allocated memory. |
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44 * The result is empty when encoding fails. |
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45 * "options" can be JSON_JS or zero; |
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46 */ |
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47 char_u * |
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48 json_encode(typval_T *val, int options) |
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49 { |
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50 garray_T ga; |
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51 |
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52 /* Store bytes in the growarray. */ |
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53 ga_init2(&ga, 1, 4000); |
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54 if (json_encode_item(&ga, val, get_copyID(), options) == FAIL) |
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55 { |
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56 vim_free(ga.ga_data); |
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57 return vim_strsave((char_u *)""); |
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58 } |
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59 return ga.ga_data; |
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60 } |
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61 |
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62 /* |
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63 * Encode ["nr", "val"] into a JSON format string in allocated memory. |
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64 * "options" can be JSON_JS or zero; |
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65 * Returns NULL when out of memory. |
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66 */ |
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67 char_u * |
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68 json_encode_nr_expr(int nr, typval_T *val, int options) |
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69 { |
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70 typval_T listtv; |
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71 typval_T nrtv; |
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72 char_u *text; |
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73 |
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74 nrtv.v_type = VAR_NUMBER; |
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75 nrtv.vval.v_number = nr; |
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76 if (rettv_list_alloc(&listtv) == FAIL) |
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77 return NULL; |
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78 if (list_append_tv(listtv.vval.v_list, &nrtv) == FAIL |
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79 || list_append_tv(listtv.vval.v_list, val) == FAIL) |
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80 { |
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81 list_unref(listtv.vval.v_list); |
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82 return NULL; |
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83 } |
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84 |
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85 text = json_encode(&listtv, options); |
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86 list_unref(listtv.vval.v_list); |
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87 return text; |
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88 } |
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89 |
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90 static void |
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91 write_string(garray_T *gap, char_u *str) |
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92 { |
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93 char_u *res = str; |
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94 char_u numbuf[NUMBUFLEN]; |
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95 |
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96 if (res == NULL) |
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97 ga_concat(gap, (char_u *)"null"); |
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98 else |
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99 { |
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100 ga_append(gap, '"'); |
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101 while (*res != NUL) |
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102 { |
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103 int c = PTR2CHAR(res); |
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104 |
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105 switch (c) |
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106 { |
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107 case 0x08: |
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108 ga_append(gap, '\\'); ga_append(gap, 'b'); break; |
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109 case 0x09: |
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110 ga_append(gap, '\\'); ga_append(gap, 't'); break; |
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111 case 0x0a: |
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112 ga_append(gap, '\\'); ga_append(gap, 'n'); break; |
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113 case 0x0c: |
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114 ga_append(gap, '\\'); ga_append(gap, 'f'); break; |
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115 case 0x0d: |
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116 ga_append(gap, '\\'); ga_append(gap, 'r'); break; |
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117 case 0x22: /* " */ |
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118 case 0x5c: /* \ */ |
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119 ga_append(gap, '\\'); |
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120 ga_append(gap, c); |
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121 break; |
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122 default: |
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123 if (c >= 0x20) |
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124 { |
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125 #ifdef FEAT_MBYTE |
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126 numbuf[mb_char2bytes(c, numbuf)] = NUL; |
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127 #else |
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128 numbuf[0] = c; |
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129 numbuf[1] = NUL; |
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130 #endif |
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131 ga_concat(gap, numbuf); |
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132 } |
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133 else |
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134 { |
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135 vim_snprintf((char *)numbuf, NUMBUFLEN, |
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136 "\\u%04lx", (long)c); |
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137 ga_concat(gap, numbuf); |
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138 } |
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139 } |
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140 mb_cptr_adv(res); |
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141 } |
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142 ga_append(gap, '"'); |
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143 } |
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144 } |
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145 |
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146 /* |
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147 * Return TRUE if "key" can be used without quotes. |
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148 * That is when it starts with a letter and only contains letters, digits and |
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149 * underscore. |
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150 */ |
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151 static int |
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152 is_simple_key(char_u *key) |
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153 { |
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154 char_u *p; |
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155 |
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156 if (!ASCII_ISALPHA(*key)) |
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157 return FALSE; |
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158 for (p = key + 1; *p != NUL; ++p) |
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159 if (!ASCII_ISALPHA(*p) && *p != '_' && !vim_isdigit(*p)) |
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160 return FALSE; |
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161 return TRUE; |
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162 } |
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163 |
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164 /* |
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165 * Encode "val" into "gap". |
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166 * Return FAIL or OK. |
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167 */ |
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168 static int |
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169 json_encode_item(garray_T *gap, typval_T *val, int copyID, int options) |
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170 { |
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171 char_u numbuf[NUMBUFLEN]; |
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172 char_u *res; |
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173 list_T *l; |
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174 dict_T *d; |
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175 |
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176 switch (val->v_type) |
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177 { |
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178 case VAR_SPECIAL: |
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179 switch (val->vval.v_number) |
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180 { |
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181 case VVAL_FALSE: ga_concat(gap, (char_u *)"false"); break; |
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182 case VVAL_TRUE: ga_concat(gap, (char_u *)"true"); break; |
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183 case VVAL_NONE: if ((options & JSON_JS) != 0 |
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184 && (options & JSON_NO_NONE) == 0) |
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185 /* empty item */ |
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186 break; |
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187 /* FALLTHROUGH */ |
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188 case VVAL_NULL: ga_concat(gap, (char_u *)"null"); break; |
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189 } |
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190 break; |
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191 |
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192 case VAR_NUMBER: |
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193 vim_snprintf((char *)numbuf, NUMBUFLEN, "%ld", |
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194 (long)val->vval.v_number); |
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195 ga_concat(gap, numbuf); |
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196 break; |
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197 |
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198 case VAR_STRING: |
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199 res = val->vval.v_string; |
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200 write_string(gap, res); |
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201 break; |
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202 |
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203 case VAR_FUNC: |
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204 case VAR_JOB: |
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205 case VAR_CHANNEL: |
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206 /* no JSON equivalent TODO: better error */ |
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207 EMSG(_(e_invarg)); |
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208 return FAIL; |
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209 |
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210 case VAR_LIST: |
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211 l = val->vval.v_list; |
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212 if (l == NULL) |
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213 ga_concat(gap, (char_u *)"null"); |
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214 else |
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215 { |
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216 if (l->lv_copyID == copyID) |
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217 ga_concat(gap, (char_u *)"[]"); |
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218 else |
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219 { |
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220 listitem_T *li; |
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221 |
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222 l->lv_copyID = copyID; |
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223 ga_append(gap, '['); |
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224 for (li = l->lv_first; li != NULL && !got_int; ) |
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225 { |
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226 if (json_encode_item(gap, &li->li_tv, copyID, |
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227 options & JSON_JS) == FAIL) |
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228 return FAIL; |
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229 if ((options & JSON_JS) |
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230 && li->li_next == NULL |
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231 && li->li_tv.v_type == VAR_SPECIAL |
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232 && li->li_tv.vval.v_number == VVAL_NONE) |
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233 /* add an extra comma if the last item is v:none */ |
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234 ga_append(gap, ','); |
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235 li = li->li_next; |
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236 if (li != NULL) |
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237 ga_append(gap, ','); |
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238 } |
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239 ga_append(gap, ']'); |
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240 l->lv_copyID = 0; |
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241 } |
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242 } |
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243 break; |
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244 |
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245 case VAR_DICT: |
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246 d = val->vval.v_dict; |
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247 if (d == NULL) |
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248 ga_concat(gap, (char_u *)"null"); |
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249 else |
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250 { |
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251 if (d->dv_copyID == copyID) |
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252 ga_concat(gap, (char_u *)"{}"); |
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253 else |
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254 { |
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255 int first = TRUE; |
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256 int todo = (int)d->dv_hashtab.ht_used; |
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257 hashitem_T *hi; |
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258 |
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259 d->dv_copyID = copyID; |
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260 ga_append(gap, '{'); |
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261 |
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262 for (hi = d->dv_hashtab.ht_array; todo > 0 && !got_int; |
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263 ++hi) |
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264 if (!HASHITEM_EMPTY(hi)) |
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265 { |
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266 --todo; |
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267 if (first) |
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268 first = FALSE; |
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269 else |
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270 ga_append(gap, ','); |
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271 if ((options & JSON_JS) |
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272 && is_simple_key(hi->hi_key)) |
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273 ga_concat(gap, hi->hi_key); |
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274 else |
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275 write_string(gap, hi->hi_key); |
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276 ga_append(gap, ':'); |
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277 if (json_encode_item(gap, &dict_lookup(hi)->di_tv, |
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278 copyID, options | JSON_NO_NONE) == FAIL) |
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279 return FAIL; |
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280 } |
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281 ga_append(gap, '}'); |
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282 d->dv_copyID = 0; |
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283 } |
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284 } |
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285 break; |
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286 |
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287 case VAR_FLOAT: |
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288 #ifdef FEAT_FLOAT |
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289 # if defined(HAVE_MATH_H) |
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290 if (isnan(val->vval.v_float)) |
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291 ga_concat(gap, (char_u *)"NaN"); |
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292 else if (isinf(val->vval.v_float)) |
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293 ga_concat(gap, (char_u *)"Infinity"); |
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294 else |
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295 # endif |
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296 { |
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297 vim_snprintf((char *)numbuf, NUMBUFLEN, "%g", |
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298 val->vval.v_float); |
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299 ga_concat(gap, numbuf); |
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300 } |
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301 break; |
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302 #endif |
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303 case VAR_UNKNOWN: |
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304 EMSG2(_(e_intern2), "json_encode_item()"); |
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305 return FAIL; |
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306 } |
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307 return OK; |
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308 } |
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309 |
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310 /* |
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311 * When "reader" has less than NUMBUFLEN bytes available, call the fill |
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312 * callback to get more. |
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313 */ |
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314 static void |
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315 fill_numbuflen(js_read_T *reader) |
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316 { |
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317 if (reader->js_fill != NULL && (int)(reader->js_end - reader->js_buf) |
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318 - reader->js_used < NUMBUFLEN) |
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319 { |
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320 if (reader->js_fill(reader)) |
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321 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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322 } |
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323 } |
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324 |
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325 /* |
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326 * Skip white space in "reader". All characters <= space are considered white |
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327 * space. |
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328 * Also tops up readahead when needed. |
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329 */ |
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330 static void |
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331 json_skip_white(js_read_T *reader) |
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332 { |
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333 int c; |
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334 |
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335 for (;;) |
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336 { |
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337 c = reader->js_buf[reader->js_used]; |
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338 if (reader->js_fill != NULL && c == NUL) |
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339 { |
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340 if (reader->js_fill(reader)) |
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341 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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342 continue; |
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343 } |
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344 if (c == NUL || c > ' ') |
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345 break; |
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346 ++reader->js_used; |
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347 } |
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348 fill_numbuflen(reader); |
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349 } |
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350 |
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351 static int |
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352 json_decode_array(js_read_T *reader, typval_T *res, int options) |
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353 { |
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354 char_u *p; |
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355 typval_T item; |
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356 listitem_T *li; |
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357 int ret; |
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358 |
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359 if (res != NULL && rettv_list_alloc(res) == FAIL) |
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360 { |
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361 res->v_type = VAR_SPECIAL; |
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362 res->vval.v_number = VVAL_NONE; |
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363 return FAIL; |
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364 } |
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365 ++reader->js_used; /* consume the '[' */ |
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366 |
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367 while (TRUE) |
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368 { |
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369 json_skip_white(reader); |
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370 p = reader->js_buf + reader->js_used; |
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371 if (*p == NUL) |
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372 return MAYBE; |
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373 if (*p == ']') |
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374 { |
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375 ++reader->js_used; /* consume the ']' */ |
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376 break; |
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377 } |
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378 |
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379 ret = json_decode_item(reader, res == NULL ? NULL : &item, options); |
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380 if (ret != OK) |
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381 return ret; |
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382 if (res != NULL) |
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383 { |
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384 li = listitem_alloc(); |
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385 if (li == NULL) |
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386 { |
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387 clear_tv(&item); |
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388 return FAIL; |
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389 } |
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390 li->li_tv = item; |
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391 list_append(res->vval.v_list, li); |
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392 } |
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393 |
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394 json_skip_white(reader); |
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395 p = reader->js_buf + reader->js_used; |
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396 if (*p == ',') |
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397 ++reader->js_used; |
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398 else if (*p != ']') |
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399 { |
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400 if (*p == NUL) |
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401 return MAYBE; |
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402 return FAIL; |
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403 } |
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404 } |
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405 return OK; |
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406 } |
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407 |
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408 static int |
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409 json_decode_object(js_read_T *reader, typval_T *res, int options) |
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410 { |
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411 char_u *p; |
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412 typval_T tvkey; |
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413 typval_T item; |
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414 dictitem_T *di; |
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415 char_u buf[NUMBUFLEN]; |
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416 char_u *key = NULL; |
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417 int ret; |
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418 |
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419 if (res != NULL && rettv_dict_alloc(res) == FAIL) |
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420 { |
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421 res->v_type = VAR_SPECIAL; |
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422 res->vval.v_number = VVAL_NONE; |
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423 return FAIL; |
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424 } |
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425 ++reader->js_used; /* consume the '{' */ |
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426 |
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427 while (TRUE) |
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428 { |
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429 json_skip_white(reader); |
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430 p = reader->js_buf + reader->js_used; |
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431 if (*p == NUL) |
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432 return MAYBE; |
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433 if (*p == '}') |
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434 { |
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435 ++reader->js_used; /* consume the '}' */ |
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436 break; |
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437 } |
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438 |
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439 if ((options & JSON_JS) && reader->js_buf[reader->js_used] != '"') |
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440 { |
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441 /* accept a key that is not in quotes */ |
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442 key = p = reader->js_buf + reader->js_used; |
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443 while (*p != NUL && *p != ':' && *p > ' ') |
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444 ++p; |
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445 tvkey.v_type = VAR_STRING; |
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446 tvkey.vval.v_string = vim_strnsave(key, (int)(p - key)); |
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447 reader->js_used += (int)(p - key); |
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448 key = tvkey.vval.v_string; |
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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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changeset
|
450 else |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
451 { |
7967
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commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
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452 ret = json_decode_item(reader, res == NULL ? NULL : &tvkey, |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
453 options); |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
454 if (ret != OK) |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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|
455 return ret; |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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|
456 if (res != NULL) |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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changeset
|
457 { |
7967
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
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|
458 key = get_tv_string_buf_chk(&tvkey, buf); |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
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changeset
|
459 if (key == NULL || *key == NUL) |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
460 { |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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|
461 clear_tv(&tvkey); |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
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changeset
|
462 return FAIL; |
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
463 } |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
464 } |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
465 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
466 |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
467 json_skip_white(reader); |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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468 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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469 if (*p != ':') |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
470 { |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
471 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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|
472 clear_tv(&tvkey); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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473 if (*p == NUL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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474 return MAYBE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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|
475 return FAIL; |
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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|
476 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
477 ++reader->js_used; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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|
478 json_skip_white(reader); |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
479 |
7967
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commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
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480 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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481 if (ret != OK) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
482 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
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483 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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484 clear_tv(&tvkey); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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485 return ret; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
486 } |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
487 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
488 if (res != NULL) |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
489 { |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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490 di = dictitem_alloc(key); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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changeset
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491 clear_tv(&tvkey); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
492 if (di == NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
493 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
494 clear_tv(&item); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
495 return FAIL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
496 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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497 di->di_tv = item; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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498 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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diff
changeset
|
499 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
500 dictitem_free(di); |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
501 return FAIL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
502 } |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
503 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
504 |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
505 json_skip_white(reader); |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
506 p = reader->js_buf + reader->js_used; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
507 if (*p == ',') |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
508 ++reader->js_used; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
509 else if (*p != '}') |
7883
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commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
510 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
511 if (*p == NUL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
512 return MAYBE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
513 return FAIL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
514 } |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
515 } |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
516 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
|
517 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
518 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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changeset
|
519 static int |
7712
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commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
520 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:
diff
changeset
|
521 { |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
522 garray_T ga; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
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changeset
|
523 int len; |
7883
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commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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|
524 char_u *p; |
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changeset
|
525 int c; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
526 long nr; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
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changeset
|
527 char_u buf[NUMBUFLEN]; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
528 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
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changeset
|
529 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
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changeset
|
530 ga_init2(&ga, 1, 200); |
7712
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|
531 |
7883
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commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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|
532 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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changeset
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533 while (*p != '"') |
7712
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changeset
|
534 { |
7883
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commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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changeset
|
535 if (*p == NUL || p[1] == NUL |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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|
536 #ifdef FEAT_MBYTE |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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537 || utf_ptr2len(p) < utf_byte2len(*p) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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|
538 #endif |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
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changeset
|
539 ) |
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540 { |
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541 if (reader->js_fill == NULL) |
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542 break; |
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543 len = (int)(reader->js_end - p); |
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544 reader->js_used = (int)(p - reader->js_buf); |
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545 if (!reader->js_fill(reader)) |
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546 break; /* didn't get more */ |
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547 p = reader->js_buf + reader->js_used; |
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548 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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549 continue; |
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550 } |
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551 |
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552 if (*p == '\\') |
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553 { |
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554 c = -1; |
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555 switch (p[1]) |
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556 { |
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557 case '\\': c = '\\'; break; |
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558 case '"': c = '"'; break; |
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559 case 'b': c = BS; break; |
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560 case 't': c = TAB; break; |
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561 case 'n': c = NL; break; |
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562 case 'f': c = FF; break; |
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563 case 'r': c = CAR; break; |
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564 case 'u': |
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565 if (reader->js_fill != NULL |
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566 && (int)(reader->js_end - p) < NUMBUFLEN) |
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567 { |
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568 reader->js_used = (int)(p - reader->js_buf); |
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569 if (reader->js_fill(reader)) |
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570 { |
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571 p = reader->js_buf + reader->js_used; |
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572 reader->js_end = reader->js_buf |
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573 + STRLEN(reader->js_buf); |
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574 } |
98a96e0ca73b
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575 } |
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576 vim_str2nr(p + 2, NULL, &len, |
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577 STR2NR_HEX + STR2NR_FORCE, &nr, NULL, 4); |
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578 p += len + 2; |
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579 if (res != NULL) |
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580 { |
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581 #ifdef FEAT_MBYTE |
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582 buf[(*mb_char2bytes)((int)nr, buf)] = NUL; |
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583 ga_concat(&ga, buf); |
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584 #else |
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585 ga_append(&ga, nr); |
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586 #endif |
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587 } |
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588 break; |
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589 default: |
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590 /* not a special char, skip over \ */ |
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591 ++p; |
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592 continue; |
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593 } |
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594 if (c > 0) |
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595 { |
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596 p += 2; |
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597 if (res != NULL) |
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598 ga_append(&ga, c); |
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599 } |
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600 } |
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601 else |
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602 { |
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603 len = MB_PTR2LEN(p); |
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604 if (res != NULL) |
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605 { |
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606 if (ga_grow(&ga, len) == FAIL) |
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607 { |
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608 ga_clear(&ga); |
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609 return FAIL; |
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610 } |
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611 mch_memmove((char *)ga.ga_data + ga.ga_len, p, (size_t)len); |
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612 ga.ga_len += len; |
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613 } |
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614 p += len; |
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615 } |
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616 } |
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617 |
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618 reader->js_used = (int)(p - reader->js_buf); |
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619 if (*p == '"') |
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620 { |
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621 ++reader->js_used; |
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622 if (res != NULL) |
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623 { |
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624 res->v_type = VAR_STRING; |
7931
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625 res->vval.v_string = ga.ga_data; |
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626 } |
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627 return OK; |
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628 } |
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629 if (res != NULL) |
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630 { |
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631 res->v_type = VAR_SPECIAL; |
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632 res->vval.v_number = VVAL_NONE; |
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633 ga_clear(&ga); |
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634 } |
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635 return MAYBE; |
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636 } |
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637 |
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638 /* |
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639 * Decode one item and put it in "res". If "res" is NULL only advance. |
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640 * Must already have skipped white space. |
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641 * |
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642 * Return FAIL for a decoding error. |
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643 * Return MAYBE for an incomplete message. |
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644 */ |
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645 static int |
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646 json_decode_item(js_read_T *reader, typval_T *res, int options) |
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647 { |
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648 char_u *p; |
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649 int len; |
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650 |
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651 fill_numbuflen(reader); |
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652 p = reader->js_buf + reader->js_used; |
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653 switch (*p) |
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654 { |
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655 case '[': /* array */ |
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656 return json_decode_array(reader, res, options); |
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657 |
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658 case '{': /* object */ |
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659 return json_decode_object(reader, res, options); |
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660 |
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661 case '"': /* string */ |
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662 return json_decode_string(reader, res); |
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663 |
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664 case ',': /* comma: empty item */ |
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665 if ((options & JSON_JS) == 0) |
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666 return FAIL; |
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667 /* FALLTHROUGH */ |
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668 case NUL: /* empty */ |
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669 if (res != NULL) |
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670 { |
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671 res->v_type = VAR_SPECIAL; |
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672 res->vval.v_number = VVAL_NONE; |
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673 } |
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674 return OK; |
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675 |
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676 default: |
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677 if (VIM_ISDIGIT(*p) || *p == '-') |
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678 { |
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679 char_u *sp = p; |
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680 |
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681 #ifdef FEAT_FLOAT |
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682 if (*sp == '-') |
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683 { |
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684 ++sp; |
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685 if (*sp == NUL) |
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686 return MAYBE; |
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687 if (!VIM_ISDIGIT(*sp)) |
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688 return FAIL; |
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689 } |
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690 sp = skipdigits(sp); |
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691 if (*sp == '.' || *sp == 'e' || *sp == 'E') |
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692 { |
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693 if (res == NULL) |
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694 { |
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695 float_T f; |
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696 |
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697 len = string2float(p, &f); |
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698 } |
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699 else |
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700 { |
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701 res->v_type = VAR_FLOAT; |
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702 len = string2float(p, &res->vval.v_float); |
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703 } |
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704 } |
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705 else |
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706 #endif |
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707 { |
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708 long nr; |
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709 |
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710 vim_str2nr(reader->js_buf + reader->js_used, |
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711 NULL, &len, 0, /* what */ |
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712 &nr, NULL, 0); |
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713 if (res != NULL) |
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714 { |
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715 res->v_type = VAR_NUMBER; |
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716 res->vval.v_number = nr; |
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717 } |
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718 } |
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719 reader->js_used += len; |
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changeset
|
720 return OK; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
721 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
722 if (STRNICMP((char *)p, "false", 5) == 0) |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
723 { |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
724 reader->js_used += 5; |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
725 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
726 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
727 res->v_type = VAR_SPECIAL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
728 res->vval.v_number = VVAL_FALSE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
729 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
730 return OK; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
731 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
732 if (STRNICMP((char *)p, "true", 4) == 0) |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
733 { |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
734 reader->js_used += 4; |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
735 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
736 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
737 res->v_type = VAR_SPECIAL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
738 res->vval.v_number = VVAL_TRUE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
739 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
740 return OK; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
741 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
742 if (STRNICMP((char *)p, "null", 4) == 0) |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
743 { |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
744 reader->js_used += 4; |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
745 if (res != NULL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
746 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
747 res->v_type = VAR_SPECIAL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
748 res->vval.v_number = VVAL_NULL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
749 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
750 return OK; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
751 } |
8228
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
752 #ifdef FEAT_FLOAT |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
753 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
|
754 { |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
755 reader->js_used += 3; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
756 if (res != NULL) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
757 { |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
758 res->v_type = VAR_FLOAT; |
8230
51ca0cee512e
commit https://github.com/vim/vim/commit/3ea0f1ae318db6cd9413914bb2ff824d71cefc6e
Christian Brabandt <cb@256bit.org>
parents:
8228
diff
changeset
|
759 res->vval.v_float = NAN; |
8228
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
760 } |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
761 return OK; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
762 } |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
763 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
|
764 { |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
765 reader->js_used += 8; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
766 if (res != NULL) |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
767 { |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
768 res->v_type = VAR_FLOAT; |
8230
51ca0cee512e
commit https://github.com/vim/vim/commit/3ea0f1ae318db6cd9413914bb2ff824d71cefc6e
Christian Brabandt <cb@256bit.org>
parents:
8228
diff
changeset
|
769 res->vval.v_float = INFINITY; |
8228
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
770 } |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
771 return OK; |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
772 } |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
773 #endif |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
774 /* check for truncated name */ |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
775 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
|
776 if ( |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
777 (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
|
778 #ifdef FEAT_FLOAT |
a0e552c51c34
commit https://github.com/vim/vim/commit/f1b6ac72293e658bb6e68c5cfd926c405b1b6f34
Christian Brabandt <cb@256bit.org>
parents:
8146
diff
changeset
|
779 || (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
|
780 || (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
|
781 #endif |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
782 || (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
|
783 || STRNICMP((char *)p, "null", len) == 0))) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
784 return MAYBE; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
785 break; |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
786 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
787 |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
788 if (res != NUL) |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
789 { |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
790 res->v_type = VAR_SPECIAL; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
791 res->vval.v_number = VVAL_NONE; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
792 } |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
793 return FAIL; |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
794 } |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
795 |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
796 /* |
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
Christian Brabandt <cb@256bit.org>
parents:
diff
changeset
|
797 * 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
|
798 * "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
|
799 * 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
|
800 */ |
7868
17e6ff1a74f1
commit https://github.com/vim/vim/commit/19d2f1589850d7db1ce77efec052929246f156e2
Christian Brabandt <cb@256bit.org>
parents:
7864
diff
changeset
|
801 int |
7967
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
7965
diff
changeset
|
802 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
|
803 { |
7883
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
804 int ret; |
98a96e0ca73b
commit https://github.com/vim/vim/commit/56ead341a75e1a0395eee94a3280c67e2278a57e
Christian Brabandt <cb@256bit.org>
parents:
7868
diff
changeset
|
805 |
7967
45ea5ebf3a98
commit https://github.com/vim/vim/commit/595e64e259faefb330866852e1b9f6168544572a
Christian Brabandt <cb@256bit.org>
parents:
7965
diff
changeset
|
806 /* 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
|
807 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
7712
bce3b5ddb393
commit https://github.com/vim/vim/commit/520e1e41f35b063ede63b41738c82d6636e78c34
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808 json_skip_white(reader); |
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809 ret = json_decode_item(reader, res, options); |
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810 if (ret != OK) |
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811 return FAIL; |
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812 json_skip_white(reader); |
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813 if (reader->js_buf[reader->js_used] != NUL) |
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814 return FAIL; |
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815 return OK; |
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816 } |
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817 |
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818 /* |
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819 * Decode the JSON from "reader" and store the result in "res". |
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820 * "options" can be JSON_JS or zero; |
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821 * Return FAIL if the message has a decoding error or the message is |
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822 * truncated. Consumes the message anyway. |
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823 */ |
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824 int |
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825 json_decode(js_read_T *reader, typval_T *res, int options) |
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826 { |
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827 int ret; |
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828 |
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829 /* We find the end once, to avoid calling strlen() many times. */ |
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830 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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831 json_skip_white(reader); |
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832 ret = json_decode_item(reader, res, options); |
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833 json_skip_white(reader); |
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834 |
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835 return ret == OK ? OK : FAIL; |
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836 } |
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837 |
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838 /* |
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839 * Decode the JSON from "reader" to find the end of the message. |
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840 * "options" can be JSON_JS or zero; |
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841 * Return FAIL if the message has a decoding error. |
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842 * Return MAYBE if the message is truncated, need to read more. |
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843 * This only works reliable if the message contains an object, array or |
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844 * string. A number might be trucated without knowing. |
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845 * Does not advance the reader. |
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846 */ |
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847 int |
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848 json_find_end(js_read_T *reader, int options) |
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849 { |
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850 int used_save = reader->js_used; |
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851 int ret; |
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852 |
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853 /* We find the end once, to avoid calling strlen() many times. */ |
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854 reader->js_end = reader->js_buf + STRLEN(reader->js_buf); |
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855 json_skip_white(reader); |
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856 ret = json_decode_item(reader, NULL, options); |
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857 reader->js_used = used_save; |
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858 return ret; |
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859 } |
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860 #endif |