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'use strict';
const vscode = require('vscode');
const { indentationEdits, onTypeCharacters, shouldFormatOnType, selectionEndLine } = require('./indentation');
const { unmatchedBrackets } = require('./brackets');
const { registerRunner } = require('./runner');
const languageId = 'cie-pseudocode';
function formatLines(document, startLine, endLine, keepBlankIndent = false) {
const lines = document.getText().split(/\r?\n/);
return indentationEdits(lines, startLine, endLine, keepBlankIndent).map(edit =>
vscode.TextEdit.replace(new vscode.Range(edit.line, 0, edit.line, edit.length), edit.text));
}
function activate(context) {
registerRunner(vscode, context);
const invalidBracket = vscode.window.createTextEditorDecorationType({
dark: { color: '#F44747' }
});
function refreshBrackets(document) {
const rangesByDocument = new Map();
for (const editor of vscode.window.visibleTextEditors) {
if (document && editor.document !== document) continue;
if (editor.document.languageId !== languageId) {
editor.setDecorations(invalidBracket, []);
continue;
}
if (!rangesByDocument.has(editor.document)) {
const ranges = unmatchedBrackets(editor.document.getText()).map(offset =>
new vscode.Range(editor.document.positionAt(offset), editor.document.positionAt(offset + 1)));
rangesByDocument.set(editor.document, ranges);
}
editor.setDecorations(invalidBracket, rangesByDocument.get(editor.document));
}
}
context.subscriptions.push(
invalidBracket,
vscode.workspace.onDidChangeTextDocument(event => refreshBrackets(event.document)),
// Changing a document's language closes/reopens it without a text edit.
vscode.workspace.onDidOpenTextDocument(() => refreshBrackets()),
vscode.window.onDidChangeVisibleTextEditors(() => refreshBrackets()),
vscode.languages.registerDocumentRangeFormattingEditProvider(languageId, {
provideDocumentRangeFormattingEdits(document, range) {
const endLine = selectionEndLine(range.start.line, range.end.line, range.end.character);
return formatLines(document, range.start.line, endLine);
}
}),
vscode.languages.registerOnTypeFormattingEditProvider(languageId, {
provideOnTypeFormattingEdits(document, position, char) {
if (!shouldFormatOnType(document.lineAt(position.line).text, char)) return [];
return formatLines(document, position.line, position.line, char === '\n');
}
}, ...onTypeCharacters)
);
refreshBrackets();
}
module.exports = { activate };
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