Function readString

plugins/shopify/skills/shopify-admin/scripts/validate.mjs:1262–1311

(lexer, start)

      return position;
    }
    function readString(lexer, start) {
      const body = lexer.source.body;
      const bodyLength = body.length;
      let position = start + 1;
      let chunkStart = position;
      let value = "";
      while (position < bodyLength) {
        const code = body.charCodeAt(position);
        if (code === 34) {
          value += body.slice(chunkStart, position);
          return createToken(
            lexer,
            _tokenKind.TokenKind.STRING,
            start,
            position + 1,
            value
          );
        }
        if (code === 92) {
          value += body.slice(chunkStart, position);
          const escape = body.charCodeAt(position + 1) === 117 ? body.charCodeAt(position + 2) === 123 ? readEscapedUnicodeVariableWidth(lexer, position) : readEscapedUnicodeFixedWidth(lexer, position) : readEscapedCharacter(lexer, position);
          value += escape.value;
          position += escape.size;
          chunkStart = position;
          continue;
        }
        if (code === 10 || code === 13) {
          break;
        }
        if (isUnicodeScalarValue(code)) {
          ++position;
        } else if (isSupplementaryCodePoint(body, position)) {
          position += 2;
        } else {
          throw (0, _syntaxError.syntaxError)(
            lexer.source,
            position,
            `Invalid character within String: ${printCodePointAt(
              lexer,
              position
            )}.`
          );
        }
      }
      throw (0, _syntaxError.syntaxError)(
        lexer.source,
        position,
        "Unterminated string."
      );
    }
    function readEscapedUnicodeVariableWidth(lexer, position) {
      const body = lexer.source.body;
      let point = 0;