TypeScript ITokenizedModel.getLineMaxColumn方法代碼示例

function getIndentationEditOperations(model: ITokenizedModel, builder: IEditOperationBuilder, tabSize: number, tabsToSpaces: boolean): void {
	if (model.getLineCount() === 1 && model.getLineMaxColumn(1) === 1) {
		// Model is empty
		return;
	}

	let spaces = '';
	for (let i = 0; i < tabSize; i++) {
		spaces += ' ';
	}

	const content = model.getLinesContent();
	for (let i = 0; i < content.length; i++) {
		let lastIndentationColumn = model.getLineFirstNonWhitespaceColumn(i + 1);
		if (lastIndentationColumn === 0) {
			lastIndentationColumn = model.getLineMaxColumn(i + 1);
		}

		const text = (tabsToSpaces ? content[i].substr(0, lastIndentationColumn).replace(/\t/ig, spaces) :
			content[i].substr(0, lastIndentationColumn).replace(new RegExp(spaces, 'gi'), '\t')) +
			content[i].substr(lastIndentationColumn);

		builder.addEditOperation(new Range(i + 1, 1, i + 1, model.getLineMaxColumn(i + 1)), text);
	}
}

	public static lineInsertAfter(config: CursorConfiguration, model: ITokenizedModel, selections: Selection[]): ICommand[] {
		let commands: ICommand[] = [];
		for (let i = 0, len = selections.length; i < len; i++) {
			const lineNumber = selections[i].positionLineNumber;
			let column = model.getLineMaxColumn(lineNumber);
			commands[i] = this._enter(config, model, false, new Range(lineNumber, column, lineNumber, column));
		}
		return commands;
	}

	private matchEnterRule(model: ITokenizedModel, indentConverter: IIndentConverter, tabSize: number, line: number, oneLineAbove: number, oneLineAboveText?: string) {
		let validPrecedingLine = oneLineAbove;
		while (validPrecedingLine >= 1) {
			// ship empty lines as empty lines just inherit indentation
			let lineContent;
			if (validPrecedingLine === oneLineAbove && oneLineAboveText !== undefined) {
				lineContent = oneLineAboveText;
			} else {
				lineContent = model.getLineContent(validPrecedingLine);
			}

			let nonWhitespaceIdx = strings.lastNonWhitespaceIndex(lineContent);
			if (nonWhitespaceIdx >= 0) {
				break;
			}
			validPrecedingLine--;
		}

		if (validPrecedingLine < 1 || line > model.getLineCount()) {
			return null;
		}

		let maxColumn = model.getLineMaxColumn(validPrecedingLine);
		let enter = LanguageConfigurationRegistry.getEnterAction(model, new Range(validPrecedingLine, maxColumn, validPrecedingLine, maxColumn));

		if (enter) {
			let enterPrefix = enter.indentation;
			let enterAction = enter.enterAction;

			if (enterAction.indentAction === IndentAction.None) {
				enterPrefix = enter.indentation + enterAction.appendText;
			} else if (enterAction.indentAction === IndentAction.Indent) {
				enterPrefix = enter.indentation + enterAction.appendText;
			} else if (enterAction.indentAction === IndentAction.IndentOutdent) {
				enterPrefix = enter.indentation;
			} else if (enterAction.indentAction === IndentAction.Outdent) {
				enterPrefix = indentConverter.unshiftIndent(enter.indentation) + enterAction.appendText;
			}
			let movingLineText = model.getLineContent(line);
			if (this.trimLeft(movingLineText).indexOf(this.trimLeft(enterPrefix)) >= 0) {
				let oldIndentation = strings.getLeadingWhitespace(model.getLineContent(line));
				let newIndentation = strings.getLeadingWhitespace(enterPrefix);
				let indentMetadataOfMovelingLine = LanguageConfigurationRegistry.getIndentMetadata(model, line);
				if (indentMetadataOfMovelingLine & IndentConsts.DECREASE_MASK) {
					newIndentation = indentConverter.unshiftIndent(newIndentation);
				}
				let newSpaceCnt = IndentUtil.getSpaceCnt(newIndentation, tabSize);
				let oldSpaceCnt = IndentUtil.getSpaceCnt(oldIndentation, tabSize);
				return newSpaceCnt - oldSpaceCnt;
			}
		}

		return null;
	}

	public getEditOperations(model: ITokenizedModel, builder: IEditOperationBuilder): void {
		if (model.getLineCount() === 1 && model.getLineMaxColumn(1) === 1) {
			// Model is empty
			return;
		}

		var startLineNumber = this.startLineNumber;
		var endLineNumber = this.endLineNumber;

		var startColumn = 1;
		var endColumn = model.getLineMaxColumn(endLineNumber);
		if (endLineNumber < model.getLineCount()) {
			endLineNumber += 1;
			endColumn = 1;
		} else if (startLineNumber > 1) {
			startLineNumber -= 1;
			startColumn = model.getLineMaxColumn(startLineNumber);
		}

		builder.addTrackedEditOperation(new Range(startLineNumber, startColumn, endLineNumber, endColumn), null);
	}

	private static _goodIndentForLine(config: CursorConfiguration, model: ITokenizedModel, lineNumber: number): string {
		let action;
		let indentation;
		let expectedIndentAction = LanguageConfigurationRegistry.getInheritIndentForLine(model, lineNumber, false);

		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;
	}

	public static lineInsertAfter(config: CursorConfiguration, model: ITokenizedModel, cursors: SingleCursorState[]): EditOperationResult {
		let commands: CommandResult[] = [];
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			let position = cursor.position;
			let column = model.getLineMaxColumn(position.lineNumber);
			commands[i] = this._enter(config, model, false, new Range(position.lineNumber, column, position.lineNumber, column));
		}
		return new EditOperationResult(commands, {
			shouldPushStackElementBefore: true,
			shouldPushStackElementAfter: false,
		});
	}

	public getEditOperations(model: ITokenizedModel, builder: IEditOperationBuilder): void {
		var s = this._selection;
		this._selectionId = builder.trackSelection(s);
		if (s.startLineNumber !== s.endLineNumber) {
			return;
		}
		if (this._isMovingLeft && s.startColumn === 0) {
			return;
		} else if (!this._isMovingLeft && s.endColumn === model.getLineMaxColumn(s.startLineNumber)) {
			return;
		}

		var lineNumber = s.selectionStartLineNumber;
		var lineContent = model.getLineContent(lineNumber);

		var left;
		var middle;
		var right;

		if (this._isMovingLeft) {
			left = lineContent.substring(0, s.startColumn - 2);
			middle = lineContent.substring(s.startColumn - 1, s.endColumn - 1);
			right = lineContent.substring(s.startColumn - 2, s.startColumn - 1) + lineContent.substring(s.endColumn - 1);
		} else {
			left = lineContent.substring(0, s.startColumn - 1) + lineContent.substring(s.endColumn - 1, s.endColumn);
			middle = lineContent.substring(s.startColumn - 1, s.endColumn - 1);
			right = lineContent.substring(s.endColumn);
		}

		var newLineContent = left + middle + right;

		builder.addEditOperation(new Range(lineNumber, 1, lineNumber, model.getLineMaxColumn(lineNumber)), null);
		builder.addEditOperation(new Range(lineNumber, 1, lineNumber, 1), newLineContent);

		this._cutStartIndex = s.startColumn + (this._isMovingLeft ? -1 : 1);
		this._cutEndIndex = this._cutStartIndex + s.endColumn - s.startColumn;
		this._moved = true;
	}

	public static lineInsertBefore(config: CursorConfiguration, model: ITokenizedModel, cursor: SingleCursorState): EditOperationResult {
		let lineNumber = cursor.position.lineNumber;

		if (lineNumber === 1) {
			return new EditOperationResult(new ReplaceCommandWithoutChangingPosition(new Range(1, 1, 1, 1), '\n'), {
				shouldPushStackElementBefore: true,
				shouldPushStackElementAfter: true
			});
		}

		lineNumber--;
		let column = model.getLineMaxColumn(lineNumber);

		return this._enter(config, model, false, new Range(lineNumber, column, lineNumber, column));
	}

	public static tab(config: CursorConfiguration, model: ITokenizedModel, cursors: SingleCursorState[]): EditOperationResult {
		let commands: CommandResult[] = [];
		for (let i = 0, len = cursors.length; i < len; i++) {
			const cursor = cursors[i];
			let selection = cursor.selection;

			if (selection.isEmpty()) {

				let lineText = model.getLineContent(selection.startLineNumber);

				if (/^\s*$/.test(lineText)) {
					let goodIndent = this._goodIndentForLine(config, model, selection.startLineNumber);
					goodIndent = goodIndent || '\t';
					let possibleTypeText = config.normalizeIndentation(goodIndent);
					if (!strings.startsWith(lineText, possibleTypeText)) {
						let command = new ReplaceCommand(new Range(selection.startLineNumber, 1, selection.startLineNumber, lineText.length + 1), possibleTypeText);
						commands[i] = new CommandResult(command, true);
						continue;
					}
				}

				commands[i] = new CommandResult(this._replaceJumpToNextIndent(config, model, selection), true);
			} else {
				if (selection.startLineNumber === selection.endLineNumber) {
					let lineMaxColumn = model.getLineMaxColumn(selection.startLineNumber);
					if (selection.startColumn !== 1 || selection.endColumn !== lineMaxColumn) {
						// This is a single line selection that is not the entire line
						commands[i] = new CommandResult(this._replaceJumpToNextIndent(config, model, selection), false);
						continue;
					}
				}

				commands[i] = new CommandResult(
					new ShiftCommand(selection, {
						isUnshift: false,
						tabSize: config.tabSize,
						oneIndent: config.oneIndent,
						useTabStops: config.useTabStops
					}),
					false
				);
			}
		}
		return new EditOperationResult(commands, {
			shouldPushStackElementBefore: true,
			shouldPushStackElementAfter: true
		});
	}

	public static lineInsertBefore(config: CursorConfiguration, model: ITokenizedModel, selections: Selection[]): ICommand[] {
		let commands: ICommand[] = [];
		for (let i = 0, len = selections.length; i < len; i++) {
			let lineNumber = selections[i].positionLineNumber;

			if (lineNumber === 1) {
				commands[i] = new ReplaceCommandWithoutChangingPosition(new Range(1, 1, 1, 1), '\n');
			} else {
				lineNumber--;
				let column = model.getLineMaxColumn(lineNumber);

				commands[i] = this._enter(config, model, false, new Range(lineNumber, column, lineNumber, column));
			}
		}
		return commands;
	}