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Monaco SQL Languages
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This project is based on the SQL language project of Monaco Editor, which was forked from the monaco-languages.The difference is that Monaco SQL Languages supports various SQL languages and the corresponding advanced features for the Big Data field.
Feature highlights
- Code Highlighting
- Syntax Validation
- Code Completion
- Built-in SQL Snippets
Powered By dt-sql-parser
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https://dtstack.github.io/monaco-sql-languages/
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Supported SQL Languages
- MySQL
- Flink
- Spark
- Hive
- Trino (Presto)
- PostgreSQL
- Impala
Installing
npm install monaco-sql-languagesTips: Monaco SQL Languages is only guaranteed to work stably on `monaco-editor@0.31.0` for now.
Integrating
Usage
Import language contributions
Tips: If integrated via MonacoEditorWebpackPlugin, it will help us to import contribution files automatically. Otherwise, you need to import the contribution files manually.
import 'monaco-sql-languages/esm/languages/mysql/mysql.contribution'; import 'monaco-sql-languages/esm/languages/flink/flink.contribution'; import 'monaco-sql-languages/esm/languages/spark/spark.contribution'; import 'monaco-sql-languages/esm/languages/hive/hive.contribution'; import 'monaco-sql-languages/esm/languages/trino/trino.contribution'; import 'monaco-sql-languages/esm/languages/pgsql/pgsql.contribution'; import 'monaco-sql-languages/esm/languages/impala/impala.contribution'; // Or you can import all language contributions at once. // import 'monaco-sql-languages/esm/all.contributions';Setup language features
You can setup language features via
setupLanguageFeatures. For example, setup code completion feature of flinkSQL language.import { LanguageIdEnum, setupLanguageFeatures } from 'monaco-sql-languages'; setupLanguageFeatures(LanguageIdEnum.FLINK, { completionItems: { enable: true, triggerCharacters: [' ', '.'], completionService: //... , } });By default, Monaco SQL Languages only provides keyword autocompletion and built-in SQL snippets, and you can customize your completionItem list via
completionService.import { languages } from 'monaco-editor/esm/vs/editor/editor.api'; import { setupLanguageFeatures, LanguageIdEnum, CompletionService, ICompletionItem, EntityContextType } from 'monaco-sql-languages'; const completionService: CompletionService = function ( model, position, completionContext, suggestions, // syntax context info at caretPosition entities, // tables, columns in the syntax context of the editor text snippets // SQL snippets ) { return new Promise((resolve, reject) => { if (!suggestions) { return Promise.resolve([]); } const { keywords, syntax } = suggestions; const keywordsCompletionItems: ICompletionItem[] = keywords.map((kw) => ({ label: kw, kind: languages.CompletionItemKind.Keyword, detail: 'keyword', sortText: '2' + kw })); let syntaxCompletionItems: ICompletionItem[] = []; syntax.forEach((item) => { if (item.syntaxContextType === EntityContextType.DATABASE) { const databaseCompletions: ICompletionItem[] = []; // some completions about databaseName syntaxCompletionItems = [...syntaxCompletionItems, ...databaseCompletions]; } if (item.syntaxContextType === EntityContextType.TABLE) { const tableCompletions: ICompletionItem[] = []; // some completions about tableName syntaxCompletionItems = [...syntaxCompletionItems, ...tableCompletions]; } }); resolve([...syntaxCompletionItems, ...keywordsCompletionItems]); }); }; setupLanguageFeatures(LanguageIdEnum.FLINK, { completionItems: { enable: true, completionService: //... , } });Create the Monaco Editor instance and specify the language you need
import { LanguageIdEnum } from 'monaco-sql-languages'; monaco.editor.create(document.getElementById('container'), { value: 'select * from tb_test', language: LanguageIdEnum.FLINK // languageId });
SQL Snippets
We provide some built-in SQL snippets for each SQL language, which helps us to write SQL quickly.
How to customize SQL snippets?
When setting language features, you can customize SQL snippets via snippets configuration. When snippets is passed in as an empty array, the built-in SQL snippets are disabled.
import { snippets, CompletionSnippetOption } from 'monaco-sql-languages/esm/main.js';
const customSnippets: CompletionSnippetOption[] = [
{
label: 'INSERT',
prefix: 'insert',
// Will join the line with `\n`
body: [
'INSERT INTO ${1:table_name}',
'SELECT ${3:column1}, ${4:column2}',
'FROM ${2:source_table}',
'WHERE ${5:conditions};\n$6'
],
description: "This is an 'insert into select' snippet"
}
];Snippets syntax can refer to vscode-snippet. But it is different from vscode code snippets, we only provide snippets completions at the beginning of the SQL statement.
Note: If you provide a custom completionService method, you need to manually return the snippets as completions, as shown in the following example:
const completionService: CompletionService = async function (
model,
position,
completionContext,
suggestions,
entities,
snippets
) {
const { keywords } = suggestions;
const keywordsCompletionItems: ICompletionItem[] = keywords.map((kw) => ({
label: kw,
kind: languages.CompletionItemKind.Keyword,
detail: 'keyword',
sortText: '2' + kw
}));
const snippetCompletionItems: ICompletionItem[] =
snippets?.map((item) => ({
label: item.label || item.prefix,
kind: languages.CompletionItemKind.Snippet,
filterText: item.prefix,
insertText: item.insertText,
insertTextRules: languages.CompletionItemInsertTextRule.InsertAsSnippet,
sortText: '3' + item.prefix,
detail: item.description !== undefined ? item.description : 'SQL Snippet',
documentation: item.insertText
})) || [];
return [...keywordsCompletionItems, ...snippetCompletionItems];
};Other Notes:
When in code snippet context, you can use Tab key to move to the next input position, but the keywords completions is also triggered by Tab key, which will cause a shortcut key conflict. So Monaco-Editor stipulates that when in code snippet context, it will not trigger completion.
If you want to still support intelligent completion in code snippet context, you can set the Monaco-Editor configuration item suggest.snippetsPreventQuickSuggestions to false to achieve it.
editor.create(editorElement, {
suggest: {
snippetsPreventQuickSuggestions: false
}
})
Monaco Theme
Monaco SQL Languages plan to support more themes in the future.
Monaco SQL Languages provides built-in Monaco Theme that is named vsPlusTheme. vsPlusTheme inspired by vscode default plus colorTheme and it contains three styles of themes inside:
darkTheme: Inherited from monaco built-in themevs-dark;lightTheme: Inherited from monaco built-in themevs;hcBlackTheme: Inherited from monaco built-in themehc-black;
Use Monaco SQL Languages built-in vsPlusTheme
import { vsPlusTheme } from 'monaco-sql-languages';
import { editor } from 'monaco-editor';
// import themeData and defineTheme, you can customize the theme name, e.g. sql-dark
editor.defineTheme('sql-dark', vsPlusTheme.darkThemeData);
editor.defineTheme('sql-light', vsPlusTheme.lightThemeData);
editor.defineTheme('sql-hc', vsPlusTheme.hcBlackThemeData);
// specify the theme you have defined
editor.create(null as any, {
theme: 'sql-dark',
language: 'flinksql'
});Customize your own Monaco theme
import { TokenClassConsts, postfixTokenClass } from 'monaco-sql-languages';
// Customize the various tokens style
const myThemeData: editor.IStandaloneThemeData = {
base: 'vs-dark',
inherit: true,
rules: [
{ token: postfixTokenClass(TokenClassConsts.COMMENT), foreground: '6a9955' },
{ token: postfixTokenClass(TokenClassConsts.IDENTIFIER), foreground: '9cdcfe' },
{ token: postfixTokenClass(TokenClassConsts.KEYWORD), foreground: '569cd6' },
{ token: postfixTokenClass(TokenClassConsts.NUMBER), foreground: 'b5cea8' },
{ token: postfixTokenClass(TokenClassConsts.STRING), foreground: 'ce9178' },
{ token: postfixTokenClass(TokenClassConsts.TYPE), foreground: '4ec9b0' }
],
colors: {}
};
// Define the monaco theme
editor.defineTheme('my-theme', myThemeData);
postfixTokenClassis not required in most cases, but since Monaco SQL Languages hastokenPostfix: 'sql'internally set for all SQL languages, in some cases your custom style may not work if you don't usepostfixTokenClassClassto handleTokenClassConsts.*.
Dev: cheat sheet
initial setup
pnpm installopen the dev web
pnpm watch-esm cd website pnpm install pnpm devbuild
pnpm buildrun test
pnpm test
Code of Conduct
This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.