1 | import { Type, YAMLSyntaxError } from './util'
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2 |
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3 | export default function parseCST(str: string): ParsedCST
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4 |
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5 | export interface ParsedCST extends Array<CST.Document> {
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6 | setOrigRanges(): boolean
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7 | }
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8 |
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9 | export namespace CST {
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10 | interface Range {
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11 | start: number
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12 | end: number
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13 | origStart?: number
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14 | origEnd?: number
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15 | isEmpty(): boolean
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16 | }
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17 |
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18 | interface ParseContext {
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19 | /** Node starts at beginning of line */
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20 | atLineStart: boolean
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21 | /** true if currently in a collection context */
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22 | inCollection: boolean
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23 | /** true if currently in a flow context */
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24 | inFlow: boolean
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25 | /** Current level of indentation */
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26 | indent: number
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27 | /** Start of the current line */
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28 | lineStart: number
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29 | /** The parent of the node */
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30 | parent: Node
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31 | /** Source of the YAML document */
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32 | src: string
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33 | }
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34 |
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35 | interface Node {
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36 | context: ParseContext | null
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37 | /** if not null, indicates a parser failure */
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38 | error: YAMLSyntaxError | null
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39 | /** span of context.src parsed into this node */
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40 | range: Range | null
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41 | valueRange: Range | null
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42 | /** anchors, tags and comments */
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43 | props: Range[]
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44 | /** specific node type */
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45 | type: Type
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46 | /** if non-null, overrides source value */
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47 | value: string | null
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48 |
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49 | readonly anchor: string | null
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50 | readonly comment: string | null
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51 | readonly hasComment: boolean
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52 | readonly hasProps: boolean
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53 | readonly jsonLike: boolean
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54 | readonly rangeAsLinePos: null | {
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55 | start: { line: number; col: number }
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56 | end?: { line: number; col: number }
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57 | }
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58 | readonly rawValue: string | null
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59 | readonly tag:
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60 | | null
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61 | | { verbatim: string }
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62 | | { handle: string; suffix: string }
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63 | readonly valueRangeContainsNewline: boolean
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64 | }
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65 |
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66 | interface Alias extends Node {
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67 | type: Type.ALIAS
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68 | /** contain the anchor without the * prefix */
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69 | readonly rawValue: string
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70 | }
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71 |
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72 | type Scalar = BlockValue | PlainValue | QuoteValue
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73 |
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74 | interface BlockValue extends Node {
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75 | type: Type.BLOCK_FOLDED | Type.BLOCK_LITERAL
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76 | chomping: 'CLIP' | 'KEEP' | 'STRIP'
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77 | blockIndent: number | null
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78 | header: Range
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79 | readonly strValue: string | null
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80 | }
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81 |
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82 | interface BlockFolded extends BlockValue {
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83 | type: Type.BLOCK_FOLDED
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84 | }
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85 |
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86 | interface BlockLiteral extends BlockValue {
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87 | type: Type.BLOCK_LITERAL
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88 | }
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89 |
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90 | interface PlainValue extends Node {
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91 | type: Type.PLAIN
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92 | readonly strValue: string | null
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93 | }
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94 |
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95 | interface QuoteValue extends Node {
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96 | type: Type.QUOTE_DOUBLE | Type.QUOTE_SINGLE
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97 | readonly strValue:
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98 | | null
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99 | | string
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100 | | { str: string; errors: YAMLSyntaxError[] }
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101 | }
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102 |
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103 | interface QuoteDouble extends QuoteValue {
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104 | type: Type.QUOTE_DOUBLE
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105 | }
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106 |
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107 | interface QuoteSingle extends QuoteValue {
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108 | type: Type.QUOTE_SINGLE
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109 | }
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110 |
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111 | interface Comment extends Node {
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112 | type: Type.COMMENT
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113 | readonly anchor: null
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114 | readonly comment: string
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115 | readonly rawValue: null
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116 | readonly tag: null
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117 | }
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118 |
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119 | interface BlankLine extends Node {
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120 | type: Type.BLANK_LINE
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121 | }
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122 |
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123 | interface MapItem extends Node {
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124 | type: Type.MAP_KEY | Type.MAP_VALUE
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125 | node: ContentNode | null
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126 | }
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127 |
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128 | interface MapKey extends MapItem {
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129 | type: Type.MAP_KEY
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130 | }
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131 |
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132 | interface MapValue extends MapItem {
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133 | type: Type.MAP_VALUE
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134 | }
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135 |
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136 | interface Map extends Node {
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137 | type: Type.MAP
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138 | /** implicit keys are not wrapped */
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139 | items: Array<BlankLine | Comment | Alias | Scalar | MapItem>
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140 | }
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141 |
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142 | interface SeqItem extends Node {
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143 | type: Type.SEQ_ITEM
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144 | node: ContentNode | null
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145 | }
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146 |
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147 | interface Seq extends Node {
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148 | type: Type.SEQ
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149 | items: Array<BlankLine | Comment | SeqItem>
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150 | }
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151 |
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152 | interface FlowChar {
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153 | char: '{' | '}' | '[' | ']' | ',' | '?' | ':'
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154 | offset: number
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155 | origOffset?: number
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156 | }
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157 |
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158 | interface FlowCollection extends Node {
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159 | type: Type.FLOW_MAP | Type.FLOW_SEQ
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160 | items: Array<
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161 | FlowChar | BlankLine | Comment | Alias | Scalar | FlowCollection
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162 | >
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163 | }
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164 |
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165 | interface FlowMap extends FlowCollection {
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166 | type: Type.FLOW_MAP
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167 | }
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168 |
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169 | interface FlowSeq extends FlowCollection {
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170 | type: Type.FLOW_SEQ
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171 | }
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172 |
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173 | type ContentNode = Alias | Scalar | Map | Seq | FlowCollection
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174 |
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175 | interface Directive extends Node {
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176 | type: Type.DIRECTIVE
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177 | name: string
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178 | readonly anchor: null
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179 | readonly parameters: string[]
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180 | readonly tag: null
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181 | }
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182 |
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183 | interface Document extends Node {
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184 | type: Type.DOCUMENT
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185 | directives: Array<BlankLine | Comment | Directive>
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186 | contents: Array<BlankLine | Comment | ContentNode>
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187 | readonly anchor: null
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188 | readonly comment: null
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189 | readonly tag: null
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190 | }
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191 | }
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