SQL schema autocomplete

[Li Yu]

Duplicate to microsoft/monaco-editor#4011
Anyone could shed some light how to let editor auto-complete based on table schema ?

[小弟调调]

https://microsoft.github.io/monaco-editor/playground.html?source=v0.37.0-dev.20230330#example-extending-language-services-completion-provider-example

@51yu There is an official example, you can refer to it.

function createDependencyProposals(range) {
	// returning a static list of proposals, not even looking at the prefix (filtering is done by the Monaco editor),
	// here you could do a server side lookup
	return [
		{
			label: '"lodash"',
			kind: monaco.languages.CompletionItemKind.Function,
			documentation: "The Lodash library exported as Node.js modules.",
			insertText: '"lodash": "*"',
			range: range,
		},
		{
			label: '"express"',
			kind: monaco.languages.CompletionItemKind.Function,
			documentation: "Fast, unopinionated, minimalist web framework",
			insertText: '"express": "*"',
			range: range,
		},
		{
			label: '"mkdirp"',
			kind: monaco.languages.CompletionItemKind.Function,
			documentation: "Recursively mkdir, like <code>mkdir -p</code>",
			insertText: '"mkdirp": "*"',
			range: range,
		},
		{
			label: '"my-third-party-library"',
			kind: monaco.languages.CompletionItemKind.Function,
			documentation: "Describe your library here",
			insertText: '"${1:my-third-party-library}": "${2:1.2.3}"',
			insertTextRules:
				monaco.languages.CompletionItemInsertTextRule.InsertAsSnippet,
			range: range,
		},
	];
}

monaco.languages.registerCompletionItemProvider("json", {
	provideCompletionItems: function (model, position) {
		// find out if we are completing a property in the 'dependencies' object.
		var textUntilPosition = model.getValueInRange({
			startLineNumber: 1,
			startColumn: 1,
			endLineNumber: position.lineNumber,
			endColumn: position.column,
		});
		var match = textUntilPosition.match(
			/"dependencies"\s*:\s*\{\s*("[^"]*"\s*:\s*"[^"]*"\s*,\s*)*([^"]*)?$/
		);
		if (!match) {
			return { suggestions: [] };
		}
		var word = model.getWordUntilPosition(position);
		var range = {
			startLineNumber: position.lineNumber,
			endLineNumber: position.lineNumber,
			startColumn: word.startColumn,
			endColumn: word.endColumn,
		};
		return {
			suggestions: createDependencyProposals(range),
		};
	},
});

monaco.editor.create(document.getElementById("container"), {
	value: '{\n\t"dependencies": {\n\t\t\n\t}\n}\n',
	language: "json",
});