48 lines
1.8 KiB
JavaScript
48 lines
1.8 KiB
JavaScript
'use strict';
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var java$1 = require('@lezer/java');
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var language = require('@codemirror/language');
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/**
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A language provider based on the [Lezer Java
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parser](https://github.com/lezer-parser/java), extended with
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highlighting and indentation information.
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*/
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const javaLanguage = language.LRLanguage.define({
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name: "java",
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parser: java$1.parser.configure({
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props: [
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language.indentNodeProp.add({
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IfStatement: language.continuedIndent({ except: /^\s*({|else\b)/ }),
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TryStatement: language.continuedIndent({ except: /^\s*({|catch|finally)\b/ }),
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LabeledStatement: language.flatIndent,
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SwitchBlock: context => {
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let after = context.textAfter, closed = /^\s*\}/.test(after), isCase = /^\s*(case|default)\b/.test(after);
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return context.baseIndent + (closed ? 0 : isCase ? 1 : 2) * context.unit;
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},
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Block: language.delimitedIndent({ closing: "}" }),
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BlockComment: () => null,
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Statement: language.continuedIndent({ except: /^{/ })
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}),
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language.foldNodeProp.add({
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["Block SwitchBlock ClassBody ElementValueArrayInitializer ModuleBody EnumBody " +
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"ConstructorBody InterfaceBody ArrayInitializer"]: language.foldInside,
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BlockComment(tree) { return { from: tree.from + 2, to: tree.to - 2 }; }
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})
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]
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}),
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languageData: {
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commentTokens: { line: "//", block: { open: "/*", close: "*/" } },
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indentOnInput: /^\s*(?:case |default:|\{|\})$/
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}
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});
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/**
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Java language support.
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*/
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function java() {
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return new language.LanguageSupport(javaLanguage);
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}
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exports.java = java;
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exports.javaLanguage = javaLanguage;
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