Function readQuotedValue

xml/_parse_sync.ts:743–770

()

  }

  function readQuotedValue(): string {
    const quoteCode = input.charCodeAt(pos);
    if (quoteCode !== CC_DQUOTE && quoteCode !== CC_SQUOTE) {
      error("Expected quote to start attribute value");
    }
    const quoteChar = input[pos]!;
    const start = pos + 1;

    const closeIdx = input.indexOf(quoteChar, start);
    if (closeIdx === -1) {
      pos = len;
      error("Unterminated attribute value");
    }

    const raw = input.slice(start, closeIdx);

    // Validate: '<' not allowed in attribute values (XML 1.0 §3.1)
    if (raw.includes("<")) {
      // Find exact position for error reporting
      pos = start + raw.indexOf("<");
      error("Cannot use '<' in attribute value");
    }

    pos = closeIdx + 1;

    // Normalize whitespace (§3.3.3) and decode entities
    return decodeEntities(raw.replace(/[\t\n]/g, " "), xml11);
  }

  function readText(): string {
    const start = pos;