Medplum

// SPDX-FileCopyrightText: Copyright Orangebot, Inc. and Medplum contributors // SPDX-License-Identifier: Apache-2.0 const DEFAULT_INDENT = ' '.repeat(2); export class FileBuilder { private readonly indent: string; private readonly b: string[]; indentCount: number; constructor(indent = DEFAULT_INDENT, header = true) { this.indent = indent; this.b = []; this.indentCount = 0; if (header) { this.appendNoWrap('// SPDX-FileCopyrightText: Copyright Orangebot, Inc. and Medplum contributors'); this.appendNoWrap('// SPDX-License-Identifier: Apache-2.0'); this.appendNoWrap('/*'); this.appendNoWrap(' * This is a generated file'); this.appendNoWrap(' * Do not edit manually.'); this.appendNoWrap(' */'); this.newLine(); } } newLine(): void { this.b.push('\n'); } appendNoWrap(line: string): void { this.b.push(this.indent.repeat(this.indentCount)); this.b.push(line); this.b.push('\n'); } append(line: string): void { const nowrap = this.indent.repeat(this.indentCount) + line; if (nowrap.length < 160) { this.b.push(nowrap); this.b.push('\n'); } else { let first = true; for (const wrappedLine of wordWrap(nowrap, 120 - this.indent.length * this.indentCount)) { if (first) { this.b.push(this.indent.repeat(this.indentCount)); } else { this.b.push(this.indent.repeat(this.indentCount + 2)); } this.b.push(wrappedLine.trim()); this.b.push('\n'); first = false; } } } toString(): string { return this.b.join('').replaceAll('\n\n\n', '\n\n'); } } /** * Returns a word-wrapped string. * Based on: https://stackoverflow.com/a/38709683 * @param text - Original input string. * @param maxLength - Width in number of characters. * @returns Array of lines. */ export function wordWrap(text: string, maxLength: number): string[] { const result = []; let line: string[] = []; let length = 0; text.split(' ').forEach(function (word) { if (length + word.length > maxLength) { result.push(line.join(' ').trim()); line = []; length = 0; } length += word.length + 1; line.push(word); }); if (line.length > 0) { result.push(line.join(' ').trim()); } return result; }