private static _goodIndentForLine(config: CursorConfiguration, model: ITokenizedModel, lineNumber: number): string {
let expectedIndentAction = LanguageConfigurationRegistry.getInheritIndentForLine(model, lineNumber, false);
if (expectedIndentAction) {
if (expectedIndentAction.action) {
let indentation = expectedIndentAction.indentation;
if (expectedIndentAction.action === IndentAction.Indent) {
indentation = TypeOperations.shiftIndent(config, indentation);
}
if (expectedIndentAction.action === IndentAction.Outdent) {
indentation = TypeOperations.unshiftIndent(config, indentation);
}
indentation = config.normalizeIndentation(indentation);
if (indentation.length === 0) {
return '';
} else {
return indentation;
}
}
else {
return expectedIndentAction.indentation;
}
}
return null;
}
private static _goodIndentForLine(config: CursorConfiguration, model: ITextModel, lineNumber: number): string {
let action: IndentAction | EnterAction;
let indentation: string;
let expectedIndentAction = config.autoIndent ? LanguageConfigurationRegistry.getInheritIndentForLine(model, lineNumber, false) : null;
if (expectedIndentAction) {
action = expectedIndentAction.action;
indentation = expectedIndentAction.indentation;
} else if (lineNumber > 1) {
let lastLineNumber = lineNumber - 1;
for (lastLineNumber = lineNumber - 1; lastLineNumber >= 1; lastLineNumber--) {
let lineText = model.getLineContent(lastLineNumber);
let nonWhitespaceIdx = strings.lastNonWhitespaceIndex(lineText);
if (nonWhitespaceIdx >= 0) {
break;
}
}
if (lastLineNumber < 1) {
// No previous line with content found
return null;
}
let maxColumn = model.getLineMaxColumn(lastLineNumber);
let expectedEnterAction = LanguageConfigurationRegistry.getEnterAction(model, new Range(lastLineNumber, maxColumn, lastLineNumber, maxColumn));
if (expectedEnterAction) {
indentation = expectedEnterAction.indentation;
action = expectedEnterAction.enterAction;
if (action) {
indentation += action.appendText;
}
}
}
if (action) {
if (action === IndentAction.Indent) {
indentation = TypeOperations.shiftIndent(config, indentation);
}
if (action === IndentAction.Outdent) {
indentation = TypeOperations.unshiftIndent(config, indentation);
}
indentation = config.normalizeIndentation(indentation);
}
if (!indentation) {
return null;
}
return indentation;
}