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66
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1 package yaml
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2
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3 import (
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4 "fmt"
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5 "io"
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6 )
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7
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8 // The version directive data.
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9 type yaml_version_directive_t struct {
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10 major int8 // The major version number.
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11 minor int8 // The minor version number.
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12 }
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13
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14 // The tag directive data.
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15 type yaml_tag_directive_t struct {
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16 handle []byte // The tag handle.
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17 prefix []byte // The tag prefix.
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18 }
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19
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20 type yaml_encoding_t int
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21
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22 // The stream encoding.
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23 const (
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24 // Let the parser choose the encoding.
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25 yaml_ANY_ENCODING yaml_encoding_t = iota
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26
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27 yaml_UTF8_ENCODING // The default UTF-8 encoding.
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28 yaml_UTF16LE_ENCODING // The UTF-16-LE encoding with BOM.
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29 yaml_UTF16BE_ENCODING // The UTF-16-BE encoding with BOM.
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30 )
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31
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32 type yaml_break_t int
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33
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34 // Line break types.
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35 const (
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36 // Let the parser choose the break type.
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37 yaml_ANY_BREAK yaml_break_t = iota
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38
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39 yaml_CR_BREAK // Use CR for line breaks (Mac style).
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40 yaml_LN_BREAK // Use LN for line breaks (Unix style).
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41 yaml_CRLN_BREAK // Use CR LN for line breaks (DOS style).
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42 )
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43
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44 type yaml_error_type_t int
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45
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46 // Many bad things could happen with the parser and emitter.
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47 const (
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48 // No error is produced.
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49 yaml_NO_ERROR yaml_error_type_t = iota
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50
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51 yaml_MEMORY_ERROR // Cannot allocate or reallocate a block of memory.
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52 yaml_READER_ERROR // Cannot read or decode the input stream.
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53 yaml_SCANNER_ERROR // Cannot scan the input stream.
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54 yaml_PARSER_ERROR // Cannot parse the input stream.
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55 yaml_COMPOSER_ERROR // Cannot compose a YAML document.
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56 yaml_WRITER_ERROR // Cannot write to the output stream.
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57 yaml_EMITTER_ERROR // Cannot emit a YAML stream.
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58 )
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59
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60 // The pointer position.
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61 type yaml_mark_t struct {
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62 index int // The position index.
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63 line int // The position line.
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64 column int // The position column.
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65 }
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66
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67 // Node Styles
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68
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69 type yaml_style_t int8
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70
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71 type yaml_scalar_style_t yaml_style_t
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72
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73 // Scalar styles.
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74 const (
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75 // Let the emitter choose the style.
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76 yaml_ANY_SCALAR_STYLE yaml_scalar_style_t = iota
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77
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78 yaml_PLAIN_SCALAR_STYLE // The plain scalar style.
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79 yaml_SINGLE_QUOTED_SCALAR_STYLE // The single-quoted scalar style.
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80 yaml_DOUBLE_QUOTED_SCALAR_STYLE // The double-quoted scalar style.
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81 yaml_LITERAL_SCALAR_STYLE // The literal scalar style.
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82 yaml_FOLDED_SCALAR_STYLE // The folded scalar style.
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83 )
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84
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85 type yaml_sequence_style_t yaml_style_t
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86
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87 // Sequence styles.
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88 const (
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89 // Let the emitter choose the style.
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90 yaml_ANY_SEQUENCE_STYLE yaml_sequence_style_t = iota
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91
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92 yaml_BLOCK_SEQUENCE_STYLE // The block sequence style.
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93 yaml_FLOW_SEQUENCE_STYLE // The flow sequence style.
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94 )
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95
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96 type yaml_mapping_style_t yaml_style_t
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97
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98 // Mapping styles.
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99 const (
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100 // Let the emitter choose the style.
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101 yaml_ANY_MAPPING_STYLE yaml_mapping_style_t = iota
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102
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103 yaml_BLOCK_MAPPING_STYLE // The block mapping style.
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104 yaml_FLOW_MAPPING_STYLE // The flow mapping style.
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105 )
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106
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107 // Tokens
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108
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109 type yaml_token_type_t int
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110
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111 // Token types.
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112 const (
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113 // An empty token.
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114 yaml_NO_TOKEN yaml_token_type_t = iota
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115
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116 yaml_STREAM_START_TOKEN // A STREAM-START token.
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117 yaml_STREAM_END_TOKEN // A STREAM-END token.
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118
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119 yaml_VERSION_DIRECTIVE_TOKEN // A VERSION-DIRECTIVE token.
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120 yaml_TAG_DIRECTIVE_TOKEN // A TAG-DIRECTIVE token.
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121 yaml_DOCUMENT_START_TOKEN // A DOCUMENT-START token.
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122 yaml_DOCUMENT_END_TOKEN // A DOCUMENT-END token.
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123
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124 yaml_BLOCK_SEQUENCE_START_TOKEN // A BLOCK-SEQUENCE-START token.
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125 yaml_BLOCK_MAPPING_START_TOKEN // A BLOCK-SEQUENCE-END token.
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126 yaml_BLOCK_END_TOKEN // A BLOCK-END token.
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127
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128 yaml_FLOW_SEQUENCE_START_TOKEN // A FLOW-SEQUENCE-START token.
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129 yaml_FLOW_SEQUENCE_END_TOKEN // A FLOW-SEQUENCE-END token.
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130 yaml_FLOW_MAPPING_START_TOKEN // A FLOW-MAPPING-START token.
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131 yaml_FLOW_MAPPING_END_TOKEN // A FLOW-MAPPING-END token.
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132
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133 yaml_BLOCK_ENTRY_TOKEN // A BLOCK-ENTRY token.
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134 yaml_FLOW_ENTRY_TOKEN // A FLOW-ENTRY token.
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135 yaml_KEY_TOKEN // A KEY token.
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136 yaml_VALUE_TOKEN // A VALUE token.
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137
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138 yaml_ALIAS_TOKEN // An ALIAS token.
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139 yaml_ANCHOR_TOKEN // An ANCHOR token.
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140 yaml_TAG_TOKEN // A TAG token.
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141 yaml_SCALAR_TOKEN // A SCALAR token.
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142 )
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143
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144 func (tt yaml_token_type_t) String() string {
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145 switch tt {
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146 case yaml_NO_TOKEN:
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147 return "yaml_NO_TOKEN"
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148 case yaml_STREAM_START_TOKEN:
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149 return "yaml_STREAM_START_TOKEN"
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150 case yaml_STREAM_END_TOKEN:
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151 return "yaml_STREAM_END_TOKEN"
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152 case yaml_VERSION_DIRECTIVE_TOKEN:
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153 return "yaml_VERSION_DIRECTIVE_TOKEN"
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154 case yaml_TAG_DIRECTIVE_TOKEN:
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155 return "yaml_TAG_DIRECTIVE_TOKEN"
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156 case yaml_DOCUMENT_START_TOKEN:
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157 return "yaml_DOCUMENT_START_TOKEN"
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158 case yaml_DOCUMENT_END_TOKEN:
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159 return "yaml_DOCUMENT_END_TOKEN"
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160 case yaml_BLOCK_SEQUENCE_START_TOKEN:
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161 return "yaml_BLOCK_SEQUENCE_START_TOKEN"
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162 case yaml_BLOCK_MAPPING_START_TOKEN:
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163 return "yaml_BLOCK_MAPPING_START_TOKEN"
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164 case yaml_BLOCK_END_TOKEN:
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165 return "yaml_BLOCK_END_TOKEN"
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166 case yaml_FLOW_SEQUENCE_START_TOKEN:
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167 return "yaml_FLOW_SEQUENCE_START_TOKEN"
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168 case yaml_FLOW_SEQUENCE_END_TOKEN:
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169 return "yaml_FLOW_SEQUENCE_END_TOKEN"
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170 case yaml_FLOW_MAPPING_START_TOKEN:
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171 return "yaml_FLOW_MAPPING_START_TOKEN"
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172 case yaml_FLOW_MAPPING_END_TOKEN:
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173 return "yaml_FLOW_MAPPING_END_TOKEN"
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174 case yaml_BLOCK_ENTRY_TOKEN:
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175 return "yaml_BLOCK_ENTRY_TOKEN"
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176 case yaml_FLOW_ENTRY_TOKEN:
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177 return "yaml_FLOW_ENTRY_TOKEN"
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178 case yaml_KEY_TOKEN:
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179 return "yaml_KEY_TOKEN"
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180 case yaml_VALUE_TOKEN:
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181 return "yaml_VALUE_TOKEN"
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182 case yaml_ALIAS_TOKEN:
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183 return "yaml_ALIAS_TOKEN"
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184 case yaml_ANCHOR_TOKEN:
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185 return "yaml_ANCHOR_TOKEN"
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186 case yaml_TAG_TOKEN:
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187 return "yaml_TAG_TOKEN"
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188 case yaml_SCALAR_TOKEN:
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189 return "yaml_SCALAR_TOKEN"
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190 }
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191 return "<unknown token>"
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192 }
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193
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194 // The token structure.
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195 type yaml_token_t struct {
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196 // The token type.
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197 typ yaml_token_type_t
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198
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199 // The start/end of the token.
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200 start_mark, end_mark yaml_mark_t
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201
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202 // The stream encoding (for yaml_STREAM_START_TOKEN).
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203 encoding yaml_encoding_t
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204
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205 // The alias/anchor/scalar value or tag/tag directive handle
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206 // (for yaml_ALIAS_TOKEN, yaml_ANCHOR_TOKEN, yaml_SCALAR_TOKEN, yaml_TAG_TOKEN, yaml_TAG_DIRECTIVE_TOKEN).
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207 value []byte
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208
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209 // The tag suffix (for yaml_TAG_TOKEN).
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210 suffix []byte
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211
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212 // The tag directive prefix (for yaml_TAG_DIRECTIVE_TOKEN).
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213 prefix []byte
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214
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215 // The scalar style (for yaml_SCALAR_TOKEN).
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216 style yaml_scalar_style_t
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217
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218 // The version directive major/minor (for yaml_VERSION_DIRECTIVE_TOKEN).
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219 major, minor int8
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220 }
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221
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222 // Events
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223
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224 type yaml_event_type_t int8
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225
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226 // Event types.
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227 const (
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228 // An empty event.
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229 yaml_NO_EVENT yaml_event_type_t = iota
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230
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231 yaml_STREAM_START_EVENT // A STREAM-START event.
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232 yaml_STREAM_END_EVENT // A STREAM-END event.
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233 yaml_DOCUMENT_START_EVENT // A DOCUMENT-START event.
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234 yaml_DOCUMENT_END_EVENT // A DOCUMENT-END event.
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235 yaml_ALIAS_EVENT // An ALIAS event.
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236 yaml_SCALAR_EVENT // A SCALAR event.
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237 yaml_SEQUENCE_START_EVENT // A SEQUENCE-START event.
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238 yaml_SEQUENCE_END_EVENT // A SEQUENCE-END event.
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239 yaml_MAPPING_START_EVENT // A MAPPING-START event.
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240 yaml_MAPPING_END_EVENT // A MAPPING-END event.
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241 )
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242
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243 var eventStrings = []string{
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244 yaml_NO_EVENT: "none",
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245 yaml_STREAM_START_EVENT: "stream start",
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246 yaml_STREAM_END_EVENT: "stream end",
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247 yaml_DOCUMENT_START_EVENT: "document start",
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248 yaml_DOCUMENT_END_EVENT: "document end",
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249 yaml_ALIAS_EVENT: "alias",
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250 yaml_SCALAR_EVENT: "scalar",
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251 yaml_SEQUENCE_START_EVENT: "sequence start",
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252 yaml_SEQUENCE_END_EVENT: "sequence end",
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253 yaml_MAPPING_START_EVENT: "mapping start",
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254 yaml_MAPPING_END_EVENT: "mapping end",
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255 }
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256
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257 func (e yaml_event_type_t) String() string {
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258 if e < 0 || int(e) >= len(eventStrings) {
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259 return fmt.Sprintf("unknown event %d", e)
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260 }
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261 return eventStrings[e]
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262 }
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263
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264 // The event structure.
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265 type yaml_event_t struct {
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266
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267 // The event type.
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268 typ yaml_event_type_t
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269
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270 // The start and end of the event.
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271 start_mark, end_mark yaml_mark_t
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272
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273 // The document encoding (for yaml_STREAM_START_EVENT).
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274 encoding yaml_encoding_t
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275
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276 // The version directive (for yaml_DOCUMENT_START_EVENT).
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277 version_directive *yaml_version_directive_t
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278
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279 // The list of tag directives (for yaml_DOCUMENT_START_EVENT).
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280 tag_directives []yaml_tag_directive_t
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281
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282 // The anchor (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_ALIAS_EVENT).
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283 anchor []byte
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284
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285 // The tag (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
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286 tag []byte
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287
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288 // The scalar value (for yaml_SCALAR_EVENT).
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289 value []byte
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290
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291 // Is the document start/end indicator implicit, or the tag optional?
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292 // (for yaml_DOCUMENT_START_EVENT, yaml_DOCUMENT_END_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT, yaml_SCALAR_EVENT).
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293 implicit bool
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294
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295 // Is the tag optional for any non-plain style? (for yaml_SCALAR_EVENT).
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296 quoted_implicit bool
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297
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298 // The style (for yaml_SCALAR_EVENT, yaml_SEQUENCE_START_EVENT, yaml_MAPPING_START_EVENT).
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299 style yaml_style_t
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300 }
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301
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302 func (e *yaml_event_t) scalar_style() yaml_scalar_style_t { return yaml_scalar_style_t(e.style) }
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303 func (e *yaml_event_t) sequence_style() yaml_sequence_style_t { return yaml_sequence_style_t(e.style) }
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304 func (e *yaml_event_t) mapping_style() yaml_mapping_style_t { return yaml_mapping_style_t(e.style) }
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305
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306 // Nodes
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307
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308 const (
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309 yaml_NULL_TAG = "tag:yaml.org,2002:null" // The tag !!null with the only possible value: null.
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310 yaml_BOOL_TAG = "tag:yaml.org,2002:bool" // The tag !!bool with the values: true and false.
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311 yaml_STR_TAG = "tag:yaml.org,2002:str" // The tag !!str for string values.
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312 yaml_INT_TAG = "tag:yaml.org,2002:int" // The tag !!int for integer values.
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313 yaml_FLOAT_TAG = "tag:yaml.org,2002:float" // The tag !!float for float values.
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314 yaml_TIMESTAMP_TAG = "tag:yaml.org,2002:timestamp" // The tag !!timestamp for date and time values.
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315
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316 yaml_SEQ_TAG = "tag:yaml.org,2002:seq" // The tag !!seq is used to denote sequences.
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317 yaml_MAP_TAG = "tag:yaml.org,2002:map" // The tag !!map is used to denote mapping.
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318
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319 // Not in original libyaml.
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320 yaml_BINARY_TAG = "tag:yaml.org,2002:binary"
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321 yaml_MERGE_TAG = "tag:yaml.org,2002:merge"
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322
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323 yaml_DEFAULT_SCALAR_TAG = yaml_STR_TAG // The default scalar tag is !!str.
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324 yaml_DEFAULT_SEQUENCE_TAG = yaml_SEQ_TAG // The default sequence tag is !!seq.
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325 yaml_DEFAULT_MAPPING_TAG = yaml_MAP_TAG // The default mapping tag is !!map.
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326 )
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327
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328 type yaml_node_type_t int
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329
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330 // Node types.
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331 const (
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332 // An empty node.
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333 yaml_NO_NODE yaml_node_type_t = iota
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334
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335 yaml_SCALAR_NODE // A scalar node.
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336 yaml_SEQUENCE_NODE // A sequence node.
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337 yaml_MAPPING_NODE // A mapping node.
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338 )
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339
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340 // An element of a sequence node.
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341 type yaml_node_item_t int
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342
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343 // An element of a mapping node.
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344 type yaml_node_pair_t struct {
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345 key int // The key of the element.
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346 value int // The value of the element.
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347 }
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348
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349 // The node structure.
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350 type yaml_node_t struct {
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351 typ yaml_node_type_t // The node type.
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352 tag []byte // The node tag.
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353
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354 // The node data.
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355
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356 // The scalar parameters (for yaml_SCALAR_NODE).
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357 scalar struct {
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358 value []byte // The scalar value.
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359 length int // The length of the scalar value.
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360 style yaml_scalar_style_t // The scalar style.
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361 }
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362
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363 // The sequence parameters (for YAML_SEQUENCE_NODE).
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364 sequence struct {
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365 items_data []yaml_node_item_t // The stack of sequence items.
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366 style yaml_sequence_style_t // The sequence style.
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367 }
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368
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369 // The mapping parameters (for yaml_MAPPING_NODE).
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370 mapping struct {
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371 pairs_data []yaml_node_pair_t // The stack of mapping pairs (key, value).
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372 pairs_start *yaml_node_pair_t // The beginning of the stack.
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373 pairs_end *yaml_node_pair_t // The end of the stack.
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374 pairs_top *yaml_node_pair_t // The top of the stack.
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375 style yaml_mapping_style_t // The mapping style.
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376 }
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377
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378 start_mark yaml_mark_t // The beginning of the node.
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379 end_mark yaml_mark_t // The end of the node.
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380
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381 }
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382
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383 // The document structure.
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384 type yaml_document_t struct {
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385
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386 // The document nodes.
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387 nodes []yaml_node_t
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388
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389 // The version directive.
|
|
|
390 version_directive *yaml_version_directive_t
|
|
|
391
|
|
|
392 // The list of tag directives.
|
|
|
393 tag_directives_data []yaml_tag_directive_t
|
|
|
394 tag_directives_start int // The beginning of the tag directives list.
|
|
|
395 tag_directives_end int // The end of the tag directives list.
|
|
|
396
|
|
|
397 start_implicit int // Is the document start indicator implicit?
|
|
|
398 end_implicit int // Is the document end indicator implicit?
|
|
|
399
|
|
|
400 // The start/end of the document.
|
|
|
401 start_mark, end_mark yaml_mark_t
|
|
|
402 }
|
|
|
403
|
|
|
404 // The prototype of a read handler.
|
|
|
405 //
|
|
|
406 // The read handler is called when the parser needs to read more bytes from the
|
|
|
407 // source. The handler should write not more than size bytes to the buffer.
|
|
|
408 // The number of written bytes should be set to the size_read variable.
|
|
|
409 //
|
|
|
410 // [in,out] data A pointer to an application data specified by
|
|
|
411 // yaml_parser_set_input().
|
|
|
412 // [out] buffer The buffer to write the data from the source.
|
|
|
413 // [in] size The size of the buffer.
|
|
|
414 // [out] size_read The actual number of bytes read from the source.
|
|
|
415 //
|
|
|
416 // On success, the handler should return 1. If the handler failed,
|
|
|
417 // the returned value should be 0. On EOF, the handler should set the
|
|
|
418 // size_read to 0 and return 1.
|
|
|
419 type yaml_read_handler_t func(parser *yaml_parser_t, buffer []byte) (n int, err error)
|
|
|
420
|
|
|
421 // This structure holds information about a potential simple key.
|
|
|
422 type yaml_simple_key_t struct {
|
|
|
423 possible bool // Is a simple key possible?
|
|
|
424 required bool // Is a simple key required?
|
|
|
425 token_number int // The number of the token.
|
|
|
426 mark yaml_mark_t // The position mark.
|
|
|
427 }
|
|
|
428
|
|
|
429 // The states of the parser.
|
|
|
430 type yaml_parser_state_t int
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|
|
431
|
|
|
432 const (
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|
|
433 yaml_PARSE_STREAM_START_STATE yaml_parser_state_t = iota
|
|
|
434
|
|
|
435 yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE // Expect the beginning of an implicit document.
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|
|
436 yaml_PARSE_DOCUMENT_START_STATE // Expect DOCUMENT-START.
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|
|
437 yaml_PARSE_DOCUMENT_CONTENT_STATE // Expect the content of a document.
|
|
|
438 yaml_PARSE_DOCUMENT_END_STATE // Expect DOCUMENT-END.
|
|
|
439 yaml_PARSE_BLOCK_NODE_STATE // Expect a block node.
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|
|
440 yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE // Expect a block node or indentless sequence.
|
|
|
441 yaml_PARSE_FLOW_NODE_STATE // Expect a flow node.
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|
|
442 yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a block sequence.
|
|
|
443 yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE // Expect an entry of a block sequence.
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|
|
444 yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE // Expect an entry of an indentless sequence.
|
|
|
445 yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping.
|
|
|
446 yaml_PARSE_BLOCK_MAPPING_KEY_STATE // Expect a block mapping key.
|
|
|
447 yaml_PARSE_BLOCK_MAPPING_VALUE_STATE // Expect a block mapping value.
|
|
|
448 yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE // Expect the first entry of a flow sequence.
|
|
|
449 yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE // Expect an entry of a flow sequence.
|
|
|
450 yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE // Expect a key of an ordered mapping.
|
|
|
451 yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE // Expect a value of an ordered mapping.
|
|
|
452 yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE // Expect the and of an ordered mapping entry.
|
|
|
453 yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping.
|
|
|
454 yaml_PARSE_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping.
|
|
|
455 yaml_PARSE_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping.
|
|
|
456 yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE // Expect an empty value of a flow mapping.
|
|
|
457 yaml_PARSE_END_STATE // Expect nothing.
|
|
|
458 )
|
|
|
459
|
|
|
460 func (ps yaml_parser_state_t) String() string {
|
|
|
461 switch ps {
|
|
|
462 case yaml_PARSE_STREAM_START_STATE:
|
|
|
463 return "yaml_PARSE_STREAM_START_STATE"
|
|
|
464 case yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE:
|
|
|
465 return "yaml_PARSE_IMPLICIT_DOCUMENT_START_STATE"
|
|
|
466 case yaml_PARSE_DOCUMENT_START_STATE:
|
|
|
467 return "yaml_PARSE_DOCUMENT_START_STATE"
|
|
|
468 case yaml_PARSE_DOCUMENT_CONTENT_STATE:
|
|
|
469 return "yaml_PARSE_DOCUMENT_CONTENT_STATE"
|
|
|
470 case yaml_PARSE_DOCUMENT_END_STATE:
|
|
|
471 return "yaml_PARSE_DOCUMENT_END_STATE"
|
|
|
472 case yaml_PARSE_BLOCK_NODE_STATE:
|
|
|
473 return "yaml_PARSE_BLOCK_NODE_STATE"
|
|
|
474 case yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE:
|
|
|
475 return "yaml_PARSE_BLOCK_NODE_OR_INDENTLESS_SEQUENCE_STATE"
|
|
|
476 case yaml_PARSE_FLOW_NODE_STATE:
|
|
|
477 return "yaml_PARSE_FLOW_NODE_STATE"
|
|
|
478 case yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE:
|
|
|
479 return "yaml_PARSE_BLOCK_SEQUENCE_FIRST_ENTRY_STATE"
|
|
|
480 case yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE:
|
|
|
481 return "yaml_PARSE_BLOCK_SEQUENCE_ENTRY_STATE"
|
|
|
482 case yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE:
|
|
|
483 return "yaml_PARSE_INDENTLESS_SEQUENCE_ENTRY_STATE"
|
|
|
484 case yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE:
|
|
|
485 return "yaml_PARSE_BLOCK_MAPPING_FIRST_KEY_STATE"
|
|
|
486 case yaml_PARSE_BLOCK_MAPPING_KEY_STATE:
|
|
|
487 return "yaml_PARSE_BLOCK_MAPPING_KEY_STATE"
|
|
|
488 case yaml_PARSE_BLOCK_MAPPING_VALUE_STATE:
|
|
|
489 return "yaml_PARSE_BLOCK_MAPPING_VALUE_STATE"
|
|
|
490 case yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE:
|
|
|
491 return "yaml_PARSE_FLOW_SEQUENCE_FIRST_ENTRY_STATE"
|
|
|
492 case yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE:
|
|
|
493 return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_STATE"
|
|
|
494 case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE:
|
|
|
495 return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_KEY_STATE"
|
|
|
496 case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE:
|
|
|
497 return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_VALUE_STATE"
|
|
|
498 case yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE:
|
|
|
499 return "yaml_PARSE_FLOW_SEQUENCE_ENTRY_MAPPING_END_STATE"
|
|
|
500 case yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE:
|
|
|
501 return "yaml_PARSE_FLOW_MAPPING_FIRST_KEY_STATE"
|
|
|
502 case yaml_PARSE_FLOW_MAPPING_KEY_STATE:
|
|
|
503 return "yaml_PARSE_FLOW_MAPPING_KEY_STATE"
|
|
|
504 case yaml_PARSE_FLOW_MAPPING_VALUE_STATE:
|
|
|
505 return "yaml_PARSE_FLOW_MAPPING_VALUE_STATE"
|
|
|
506 case yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE:
|
|
|
507 return "yaml_PARSE_FLOW_MAPPING_EMPTY_VALUE_STATE"
|
|
|
508 case yaml_PARSE_END_STATE:
|
|
|
509 return "yaml_PARSE_END_STATE"
|
|
|
510 }
|
|
|
511 return "<unknown parser state>"
|
|
|
512 }
|
|
|
513
|
|
|
514 // This structure holds aliases data.
|
|
|
515 type yaml_alias_data_t struct {
|
|
|
516 anchor []byte // The anchor.
|
|
|
517 index int // The node id.
|
|
|
518 mark yaml_mark_t // The anchor mark.
|
|
|
519 }
|
|
|
520
|
|
|
521 // The parser structure.
|
|
|
522 //
|
|
|
523 // All members are internal. Manage the structure using the
|
|
|
524 // yaml_parser_ family of functions.
|
|
|
525 type yaml_parser_t struct {
|
|
|
526
|
|
|
527 // Error handling
|
|
|
528
|
|
|
529 error yaml_error_type_t // Error type.
|
|
|
530
|
|
|
531 problem string // Error description.
|
|
|
532
|
|
|
533 // The byte about which the problem occurred.
|
|
|
534 problem_offset int
|
|
|
535 problem_value int
|
|
|
536 problem_mark yaml_mark_t
|
|
|
537
|
|
|
538 // The error context.
|
|
|
539 context string
|
|
|
540 context_mark yaml_mark_t
|
|
|
541
|
|
|
542 // Reader stuff
|
|
|
543
|
|
|
544 read_handler yaml_read_handler_t // Read handler.
|
|
|
545
|
|
|
546 input_reader io.Reader // File input data.
|
|
|
547 input []byte // String input data.
|
|
|
548 input_pos int
|
|
|
549
|
|
|
550 eof bool // EOF flag
|
|
|
551
|
|
|
552 buffer []byte // The working buffer.
|
|
|
553 buffer_pos int // The current position of the buffer.
|
|
|
554
|
|
|
555 unread int // The number of unread characters in the buffer.
|
|
|
556
|
|
|
557 raw_buffer []byte // The raw buffer.
|
|
|
558 raw_buffer_pos int // The current position of the buffer.
|
|
|
559
|
|
|
560 encoding yaml_encoding_t // The input encoding.
|
|
|
561
|
|
|
562 offset int // The offset of the current position (in bytes).
|
|
|
563 mark yaml_mark_t // The mark of the current position.
|
|
|
564
|
|
|
565 // Scanner stuff
|
|
|
566
|
|
|
567 stream_start_produced bool // Have we started to scan the input stream?
|
|
|
568 stream_end_produced bool // Have we reached the end of the input stream?
|
|
|
569
|
|
|
570 flow_level int // The number of unclosed '[' and '{' indicators.
|
|
|
571
|
|
|
572 tokens []yaml_token_t // The tokens queue.
|
|
|
573 tokens_head int // The head of the tokens queue.
|
|
|
574 tokens_parsed int // The number of tokens fetched from the queue.
|
|
|
575 token_available bool // Does the tokens queue contain a token ready for dequeueing.
|
|
|
576
|
|
|
577 indent int // The current indentation level.
|
|
|
578 indents []int // The indentation levels stack.
|
|
|
579
|
|
|
580 simple_key_allowed bool // May a simple key occur at the current position?
|
|
|
581 simple_keys []yaml_simple_key_t // The stack of simple keys.
|
|
|
582 simple_keys_by_tok map[int]int // possible simple_key indexes indexed by token_number
|
|
|
583
|
|
|
584 // Parser stuff
|
|
|
585
|
|
|
586 state yaml_parser_state_t // The current parser state.
|
|
|
587 states []yaml_parser_state_t // The parser states stack.
|
|
|
588 marks []yaml_mark_t // The stack of marks.
|
|
|
589 tag_directives []yaml_tag_directive_t // The list of TAG directives.
|
|
|
590
|
|
|
591 // Dumper stuff
|
|
|
592
|
|
|
593 aliases []yaml_alias_data_t // The alias data.
|
|
|
594
|
|
|
595 document *yaml_document_t // The currently parsed document.
|
|
|
596 }
|
|
|
597
|
|
|
598 // Emitter Definitions
|
|
|
599
|
|
|
600 // The prototype of a write handler.
|
|
|
601 //
|
|
|
602 // The write handler is called when the emitter needs to flush the accumulated
|
|
|
603 // characters to the output. The handler should write @a size bytes of the
|
|
|
604 // @a buffer to the output.
|
|
|
605 //
|
|
|
606 // @param[in,out] data A pointer to an application data specified by
|
|
|
607 // yaml_emitter_set_output().
|
|
|
608 // @param[in] buffer The buffer with bytes to be written.
|
|
|
609 // @param[in] size The size of the buffer.
|
|
|
610 //
|
|
|
611 // @returns On success, the handler should return @c 1. If the handler failed,
|
|
|
612 // the returned value should be @c 0.
|
|
|
613 //
|
|
|
614 type yaml_write_handler_t func(emitter *yaml_emitter_t, buffer []byte) error
|
|
|
615
|
|
|
616 type yaml_emitter_state_t int
|
|
|
617
|
|
|
618 // The emitter states.
|
|
|
619 const (
|
|
|
620 // Expect STREAM-START.
|
|
|
621 yaml_EMIT_STREAM_START_STATE yaml_emitter_state_t = iota
|
|
|
622
|
|
|
623 yaml_EMIT_FIRST_DOCUMENT_START_STATE // Expect the first DOCUMENT-START or STREAM-END.
|
|
|
624 yaml_EMIT_DOCUMENT_START_STATE // Expect DOCUMENT-START or STREAM-END.
|
|
|
625 yaml_EMIT_DOCUMENT_CONTENT_STATE // Expect the content of a document.
|
|
|
626 yaml_EMIT_DOCUMENT_END_STATE // Expect DOCUMENT-END.
|
|
|
627 yaml_EMIT_FLOW_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a flow sequence.
|
|
|
628 yaml_EMIT_FLOW_SEQUENCE_ITEM_STATE // Expect an item of a flow sequence.
|
|
|
629 yaml_EMIT_FLOW_MAPPING_FIRST_KEY_STATE // Expect the first key of a flow mapping.
|
|
|
630 yaml_EMIT_FLOW_MAPPING_KEY_STATE // Expect a key of a flow mapping.
|
|
|
631 yaml_EMIT_FLOW_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a flow mapping.
|
|
|
632 yaml_EMIT_FLOW_MAPPING_VALUE_STATE // Expect a value of a flow mapping.
|
|
|
633 yaml_EMIT_BLOCK_SEQUENCE_FIRST_ITEM_STATE // Expect the first item of a block sequence.
|
|
|
634 yaml_EMIT_BLOCK_SEQUENCE_ITEM_STATE // Expect an item of a block sequence.
|
|
|
635 yaml_EMIT_BLOCK_MAPPING_FIRST_KEY_STATE // Expect the first key of a block mapping.
|
|
|
636 yaml_EMIT_BLOCK_MAPPING_KEY_STATE // Expect the key of a block mapping.
|
|
|
637 yaml_EMIT_BLOCK_MAPPING_SIMPLE_VALUE_STATE // Expect a value for a simple key of a block mapping.
|
|
|
638 yaml_EMIT_BLOCK_MAPPING_VALUE_STATE // Expect a value of a block mapping.
|
|
|
639 yaml_EMIT_END_STATE // Expect nothing.
|
|
|
640 )
|
|
|
641
|
|
|
642 // The emitter structure.
|
|
|
643 //
|
|
|
644 // All members are internal. Manage the structure using the @c yaml_emitter_
|
|
|
645 // family of functions.
|
|
|
646 type yaml_emitter_t struct {
|
|
|
647
|
|
|
648 // Error handling
|
|
|
649
|
|
|
650 error yaml_error_type_t // Error type.
|
|
|
651 problem string // Error description.
|
|
|
652
|
|
|
653 // Writer stuff
|
|
|
654
|
|
|
655 write_handler yaml_write_handler_t // Write handler.
|
|
|
656
|
|
|
657 output_buffer *[]byte // String output data.
|
|
|
658 output_writer io.Writer // File output data.
|
|
|
659
|
|
|
660 buffer []byte // The working buffer.
|
|
|
661 buffer_pos int // The current position of the buffer.
|
|
|
662
|
|
|
663 raw_buffer []byte // The raw buffer.
|
|
|
664 raw_buffer_pos int // The current position of the buffer.
|
|
|
665
|
|
|
666 encoding yaml_encoding_t // The stream encoding.
|
|
|
667
|
|
|
668 // Emitter stuff
|
|
|
669
|
|
|
670 canonical bool // If the output is in the canonical style?
|
|
|
671 best_indent int // The number of indentation spaces.
|
|
|
672 best_width int // The preferred width of the output lines.
|
|
|
673 unicode bool // Allow unescaped non-ASCII characters?
|
|
|
674 line_break yaml_break_t // The preferred line break.
|
|
|
675
|
|
|
676 state yaml_emitter_state_t // The current emitter state.
|
|
|
677 states []yaml_emitter_state_t // The stack of states.
|
|
|
678
|
|
|
679 events []yaml_event_t // The event queue.
|
|
|
680 events_head int // The head of the event queue.
|
|
|
681
|
|
|
682 indents []int // The stack of indentation levels.
|
|
|
683
|
|
|
684 tag_directives []yaml_tag_directive_t // The list of tag directives.
|
|
|
685
|
|
|
686 indent int // The current indentation level.
|
|
|
687
|
|
|
688 flow_level int // The current flow level.
|
|
|
689
|
|
|
690 root_context bool // Is it the document root context?
|
|
|
691 sequence_context bool // Is it a sequence context?
|
|
|
692 mapping_context bool // Is it a mapping context?
|
|
|
693 simple_key_context bool // Is it a simple mapping key context?
|
|
|
694
|
|
|
695 line int // The current line.
|
|
|
696 column int // The current column.
|
|
|
697 whitespace bool // If the last character was a whitespace?
|
|
|
698 indention bool // If the last character was an indentation character (' ', '-', '?', ':')?
|
|
|
699 open_ended bool // If an explicit document end is required?
|
|
|
700
|
|
|
701 // Anchor analysis.
|
|
|
702 anchor_data struct {
|
|
|
703 anchor []byte // The anchor value.
|
|
|
704 alias bool // Is it an alias?
|
|
|
705 }
|
|
|
706
|
|
|
707 // Tag analysis.
|
|
|
708 tag_data struct {
|
|
|
709 handle []byte // The tag handle.
|
|
|
710 suffix []byte // The tag suffix.
|
|
|
711 }
|
|
|
712
|
|
|
713 // Scalar analysis.
|
|
|
714 scalar_data struct {
|
|
|
715 value []byte // The scalar value.
|
|
|
716 multiline bool // Does the scalar contain line breaks?
|
|
|
717 flow_plain_allowed bool // Can the scalar be expessed in the flow plain style?
|
|
|
718 block_plain_allowed bool // Can the scalar be expressed in the block plain style?
|
|
|
719 single_quoted_allowed bool // Can the scalar be expressed in the single quoted style?
|
|
|
720 block_allowed bool // Can the scalar be expressed in the literal or folded styles?
|
|
|
721 style yaml_scalar_style_t // The output style.
|
|
|
722 }
|
|
|
723
|
|
|
724 // Dumper stuff
|
|
|
725
|
|
|
726 opened bool // If the stream was already opened?
|
|
|
727 closed bool // If the stream was already closed?
|
|
|
728
|
|
|
729 // The information associated with the document nodes.
|
|
|
730 anchors *struct {
|
|
|
731 references int // The number of references.
|
|
|
732 anchor int // The anchor id.
|
|
|
733 serialized bool // If the node has been emitted?
|
|
|
734 }
|
|
|
735
|
|
|
736 last_anchor_id int // The last assigned anchor id.
|
|
|
737
|
|
|
738 document *yaml_document_t // The currently emitted document.
|
|
|
739 }
|
