src/util/format.js - dev - deka/buffer

src/util/format.js
92 строки3 KB
Maksim Ratnikov
format: restore \\u00a0 escape in cleanTableText regex
08 май 2026, 17:42
08 май 2026, 17:42568bc60
export function escapeHtml(value) {
  return String(value ?? "")
    .replace(/&/g, "&amp;")
    .replace(/</g, "&lt;")
    .replace(/>/g, "&gt;")
    .replace(/"/g, "&quot;")
    .replace(/'/g, "&#39;");
}

export function cleanTableText(value) {
  return String(value ?? "")
    .replace(/\u00a0/g, " ")
    .replace(/[ \t\f\v\r\n]+/g, " ")
    .trim();
}

export function layoutId() {
  if (window.crypto?.randomUUID) {
    return window.crypto.randomUUID();
  }

  return `lab-${Math.random().toString(16).slice(2)}-${Date.now().toString(16)}`;
}

export function layoutWidths(widths, count) {
  if (Array.isArray(widths)) {
    return widths.join(",");
  }
  if (typeof widths === "string") {
    return widths;
  }
  const base = Math.floor(1500 / count);
  const values = Array.from({ length: count }, () => base);
  values[values.length - 1] += 1500 - values.reduce((sum, value) => sum + value, 0);
  return values.join(",");
}

export function formatHtml(html) {
  if (!html.trim()) {
    return "";
  }

  const template = document.createElement("template");
  template.innerHTML = html;
  const voidElements = new Set([
    "area", "base", "br", "col", "embed", "hr", "img", "input", "link",
    "meta", "param", "source", "track", "wbr"
  ]);

  function serializeAttributes(node) {
    return Array.from(node.attributes)
      .map((attribute) => ` ${attribute.name}="${escapeHtml(attribute.value)}"`)
      .join("");
  }

  function serializeNode(node, depth, preserveWhitespace = false) {
    const indent = "  ".repeat(depth);

    if (node.nodeType === Node.TEXT_NODE) {
      const value = preserveWhitespace ? node.textContent : node.textContent.replace(/\s+/g, " ").trim();
      return value ? [`${indent}${escapeHtml(value)}`] : [];
    }

    if (node.nodeType === Node.COMMENT_NODE) {
      return [`${indent}<!--${node.textContent}-->`];
    }

    if (node.nodeType !== Node.ELEMENT_NODE) {
      return [];
    }

    const tag = node.tagName.toLowerCase();
    const open = `<${tag}${serializeAttributes(node)}>`;
    const preserveChildWhitespace = preserveWhitespace || tag === "pre" || tag === "code" || tag === "textarea";

    if (voidElements.has(tag)) {
      return [`${indent}${open}`];
    }

    const children = Array.from(node.childNodes).flatMap((child) => serializeNode(child, depth + 1, preserveChildWhitespace));

    if (!children.length) {
      return [`${indent}${open}</${tag}>`];
    }

    return [`${indent}${open}`, ...children, `${indent}</${tag}>`];
  }

  return Array.from(template.content.childNodes)
    .flatMap((node) => serializeNode(node, 0))
    .join("\n");
}