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69 lines
1.8 KiB
Plaintext
69 lines
1.8 KiB
Plaintext
'use strict';
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var json$1 = require('@lezer/json');
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var language = require('@codemirror/language');
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/**
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Calls
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[`JSON.parse`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse)
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on the document and, if that throws an error, reports it as a
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single diagnostic.
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*/
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const jsonParseLinter = () => (view) => {
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try {
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JSON.parse(view.state.doc.toString());
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}
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catch (e) {
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if (!(e instanceof SyntaxError))
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throw e;
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const pos = getErrorPosition(e, view.state.doc);
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return [{
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from: pos,
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message: e.message,
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severity: 'error',
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to: pos
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}];
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}
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return [];
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};
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function getErrorPosition(error, doc) {
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let m;
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if (m = error.message.match(/at position (\d+)/))
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return Math.min(+m[1], doc.length);
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if (m = error.message.match(/at line (\d+) column (\d+)/))
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return Math.min(doc.line(+m[1]).from + (+m[2]) - 1, doc.length);
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return 0;
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}
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/**
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A language provider that provides JSON parsing.
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*/
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const jsonLanguage = language.LRLanguage.define({
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name: "json",
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parser: json$1.parser.configure({
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props: [
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language.indentNodeProp.add({
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Object: language.continuedIndent({ except: /^\s*\}/ }),
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Array: language.continuedIndent({ except: /^\s*\]/ })
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}),
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language.foldNodeProp.add({
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"Object Array": language.foldInside
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})
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]
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}),
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languageData: {
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closeBrackets: { brackets: ["[", "{", '"'] },
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indentOnInput: /^\s*[\}\]]$/
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}
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});
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/**
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JSON language support.
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*/
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function json() {
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return new language.LanguageSupport(jsonLanguage);
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}
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exports.json = json;
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exports.jsonLanguage = jsonLanguage;
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exports.jsonParseLinter = jsonParseLinter;
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