Method indent

benchmark/data.js:391–454

(indentStr, options)

		return this.indentStr === null ? '	' : this.indentStr;
	}
	indent(indentStr, options) {
		const pattern = /^[^\r\n]/gm;
		if (isObject(indentStr)) {
			options = indentStr;
			indentStr = void 0;
		}
		indentStr = indentStr !== void 0 ? indentStr : this.indentStr || '	';
		if (indentStr === '') return this;
		options = options || {};
		const isExcluded = {};
		if (options.exclude) {
			const exclusions =
				typeof options.exclude[0] === 'number' ? [options.exclude] : options.exclude;
			exclusions.forEach((exclusion) => {
				for (let i = exclusion[0]; i < exclusion[1]; i += 1) {
					isExcluded[i] = true;
				}
			});
		}
		let shouldIndentNextCharacter = options.indentStart !== false;
		const replacer = (match) => {
			if (shouldIndentNextCharacter) return `${indentStr}${match}`;
			shouldIndentNextCharacter = true;
			return match;
		};
		this.intro = this.intro.replace(pattern, replacer);
		let charIndex = 0;
		let chunk = this.firstChunk;
		while (chunk) {
			const end = chunk.end;
			if (chunk.edited) {
				if (!isExcluded[charIndex]) {
					chunk.content = chunk.content.replace(pattern, replacer);
					if (chunk.content.length) {
						shouldIndentNextCharacter = chunk.content[chunk.content.length - 1] === '\n';
					}
				}
			} else {
				charIndex = chunk.start;
				while (charIndex < end) {
					if (!isExcluded[charIndex]) {
						const char = this.original[charIndex];
						if (char === '\n') {
							shouldIndentNextCharacter = true;
						} else if (char !== '\r' && shouldIndentNextCharacter) {
							shouldIndentNextCharacter = false;
							if (charIndex === chunk.start) {
								chunk.prependRight(indentStr);
							} else {
								this._splitChunk(chunk, charIndex);
								chunk = chunk.next;
								chunk.prependRight(indentStr);
							}
						}
					}
					charIndex += 1;
				}
			}