| 6dd74de | | | 1 | import type { CstNode, GrammarAST, ValueType } from 'langium'; |
| 6dd74de | | | 2 | import { DefaultValueConverter } from 'langium'; |
| 6dd74de | | | 3 | |
| 6dd74de | | | 4 | import { accessibilityDescrRegex, accessibilityTitleRegex, titleRegex } from './matcher.js'; |
| 6dd74de | | | 5 | |
| 6dd74de | | | 6 | const rulesRegexes: Record<string, RegExp> = { |
| 6dd74de | | | 7 | ACC_DESCR: accessibilityDescrRegex, |
| 6dd74de | | | 8 | ACC_TITLE: accessibilityTitleRegex, |
| 6dd74de | | | 9 | TITLE: titleRegex, |
| 6dd74de | | | 10 | }; |
| 6dd74de | | | 11 | |
| 6dd74de | | | 12 | export abstract class AbstractMermaidValueConverter extends DefaultValueConverter { |
| 6dd74de | | | 13 | /** |
| 6dd74de | | | 14 | * A method contains convert logic to be used by class. |
| 6dd74de | | | 15 | * |
| 6dd74de | | | 16 | * @param rule - Parsed rule. |
| 6dd74de | | | 17 | * @param input - Matched string. |
| 6dd74de | | | 18 | * @param cstNode - Node in the Concrete Syntax Tree (CST). |
| 6dd74de | | | 19 | * @returns converted the value if it's available or `undefined` if it's not. |
| 6dd74de | | | 20 | */ |
| 6dd74de | | | 21 | protected abstract runCustomConverter( |
| 6dd74de | | | 22 | rule: GrammarAST.AbstractRule, |
| 6dd74de | | | 23 | input: string, |
| 6dd74de | | | 24 | cstNode: CstNode |
| 6dd74de | | | 25 | ): ValueType | undefined; |
| 6dd74de | | | 26 | |
| 6dd74de | | | 27 | protected override runConverter( |
| 6dd74de | | | 28 | rule: GrammarAST.AbstractRule, |
| 6dd74de | | | 29 | input: string, |
| 6dd74de | | | 30 | cstNode: CstNode |
| 6dd74de | | | 31 | ): ValueType { |
| 6dd74de | | | 32 | let value: ValueType | undefined = this.runCommonConverter(rule, input, cstNode); |
| 6dd74de | | | 33 | |
| 6dd74de | | | 34 | if (value === undefined) { |
| 6dd74de | | | 35 | value = this.runCustomConverter(rule, input, cstNode); |
| 6dd74de | | | 36 | } |
| 6dd74de | | | 37 | if (value === undefined) { |
| 6dd74de | | | 38 | return super.runConverter(rule, input, cstNode); |
| 6dd74de | | | 39 | } |
| 6dd74de | | | 40 | |
| 6dd74de | | | 41 | return value; |
| 6dd74de | | | 42 | } |
| 6dd74de | | | 43 | |
| 6dd74de | | | 44 | private runCommonConverter( |
| 6dd74de | | | 45 | rule: GrammarAST.AbstractRule, |
| 6dd74de | | | 46 | input: string, |
| 6dd74de | | | 47 | _cstNode: CstNode |
| 6dd74de | | | 48 | ): ValueType | undefined { |
| 6dd74de | | | 49 | const regex: RegExp | undefined = rulesRegexes[rule.name]; |
| 6dd74de | | | 50 | if (regex === undefined) { |
| 6dd74de | | | 51 | return undefined; |
| 6dd74de | | | 52 | } |
| 6dd74de | | | 53 | const match = regex.exec(input); |
| 6dd74de | | | 54 | if (match === null) { |
| 6dd74de | | | 55 | return undefined; |
| 6dd74de | | | 56 | } |
| 6dd74de | | | 57 | // single line title, accTitle, accDescr |
| 6dd74de | | | 58 | if (match[1] !== undefined) { |
| 6dd74de | | | 59 | return match[1].trim().replace(/[\t ]{2,}/gm, ' '); |
| 6dd74de | | | 60 | } |
| 6dd74de | | | 61 | // multi line accDescr |
| 6dd74de | | | 62 | if (match[2] !== undefined) { |
| 6dd74de | | | 63 | return match[2] |
| 6dd74de | | | 64 | .replace(/^\s*/gm, '') |
| 6dd74de | | | 65 | .replace(/\s+$/gm, '') |
| 6dd74de | | | 66 | .replace(/[\t ]{2,}/gm, ' ') |
| 6dd74de | | | 67 | .replace(/[\n\r]{2,}/gm, '\n'); |
| 6dd74de | | | 68 | } |
| 6dd74de | | | 69 | return undefined; |
| 6dd74de | | | 70 | } |
| 6dd74de | | | 71 | } |
| 6dd74de | | | 72 | |
| 6dd74de | | | 73 | export class CommonValueConverter extends AbstractMermaidValueConverter { |
| 6dd74de | | | 74 | protected override runCustomConverter( |
| 6dd74de | | | 75 | _rule: GrammarAST.AbstractRule, |
| 6dd74de | | | 76 | _input: string, |
| 6dd74de | | | 77 | _cstNode: CstNode |
| 6dd74de | | | 78 | ): ValueType | undefined { |
| 6dd74de | | | 79 | return undefined; |
| 6dd74de | | | 80 | } |
| 6dd74de | | | 81 | } |