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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/graphql/language

Просмотр файла: blockString.js

'use strict';

Object.defineProperty(exports, '__esModule', {
  value: true,
});
exports.dedentBlockStringLines = dedentBlockStringLines;
exports.isPrintableAsBlockString = isPrintableAsBlockString;
exports.printBlockString = printBlockString;

var _characterClasses = require('./characterClasses.js');

/**
 * Produces the value of a block string from its parsed raw value, similar to
 * CoffeeScript's block string, Python's docstring trim or Ruby's strip_heredoc.
 *
 * This implements the GraphQL spec's BlockStringValue() static algorithm.
 *
 * @internal
 */
function dedentBlockStringLines(lines) {
  var _firstNonEmptyLine2;

  let commonIndent = Number.MAX_SAFE_INTEGER;
  let firstNonEmptyLine = null;
  let lastNonEmptyLine = -1;

  for (let i = 0; i < lines.length; ++i) {
    var _firstNonEmptyLine;

    const line = lines[i];
    const indent = leadingWhitespace(line);

    if (indent === line.length) {
      continue; // skip empty lines
    }

    firstNonEmptyLine =
      (_firstNonEmptyLine = firstNonEmptyLine) !== null &&
      _firstNonEmptyLine !== void 0
        ? _firstNonEmptyLine
        : i;
    lastNonEmptyLine = i;

    if (i !== 0 && indent < commonIndent) {
      commonIndent = indent;
    }
  }

  return lines // Remove common indentation from all lines but first.
    .map((line, i) => (i === 0 ? line : line.slice(commonIndent))) // Remove leading and trailing blank lines.
    .slice(
      (_firstNonEmptyLine2 = firstNonEmptyLine) !== null &&
        _firstNonEmptyLine2 !== void 0
        ? _firstNonEmptyLine2
        : 0,
      lastNonEmptyLine + 1,
    );
}

function leadingWhitespace(str) {
  let i = 0;

  while (
    i < str.length &&
    (0, _characterClasses.isWhiteSpace)(str.charCodeAt(i))
  ) {
    ++i;
  }

  return i;
}
/**
 * @internal
 */

function isPrintableAsBlockString(value) {
  if (value === '') {
    return true; // empty string is printable
  }

  let isEmptyLine = true;
  let hasIndent = false;
  let hasCommonIndent = true;
  let seenNonEmptyLine = false;

  for (let i = 0; i < value.length; ++i) {
    switch (value.codePointAt(i)) {
      case 0x0000:
      case 0x0001:
      case 0x0002:
      case 0x0003:
      case 0x0004:
      case 0x0005:
      case 0x0006:
      case 0x0007:
      case 0x0008:
      case 0x000b:
      case 0x000c:
      case 0x000e:
      case 0x000f:
        return false;
      // Has non-printable characters

      case 0x000d:
        //  \r
        return false;
      // Has \r or \r\n which will be replaced as \n

      case 10:
        //  \n
        if (isEmptyLine && !seenNonEmptyLine) {
          return false; // Has leading new line
        }

        seenNonEmptyLine = true;
        isEmptyLine = true;
        hasIndent = false;
        break;

      case 9: //   \t

      case 32:
        //  <space>
        hasIndent || (hasIndent = isEmptyLine);
        break;

      default:
        hasCommonIndent && (hasCommonIndent = hasIndent);
        isEmptyLine = false;
    }
  }

  if (isEmptyLine) {
    return false; // Has trailing empty lines
  }

  if (hasCommonIndent && seenNonEmptyLine) {
    return false; // Has internal indent
  }

  return true;
}
/**
 * Print a block string in the indented block form by adding a leading and
 * trailing blank line. However, if a block string starts with whitespace and is
 * a single-line, adding a leading blank line would strip that whitespace.
 *
 * @internal
 */

function printBlockString(value, options) {
  const escapedValue = value.replace(/"""/g, '\\"""'); // Expand a block string's raw value into independent lines.

  const lines = escapedValue.split(/\r\n|[\n\r]/g);
  const isSingleLine = lines.length === 1; // If common indentation is found we can fix some of those cases by adding leading new line

  const forceLeadingNewLine =
    lines.length > 1 &&
    lines
      .slice(1)
      .every(
        (line) =>
          line.length === 0 ||
          (0, _characterClasses.isWhiteSpace)(line.charCodeAt(0)),
      ); // Trailing triple quotes just looks confusing but doesn't force trailing new line

  const hasTrailingTripleQuotes = escapedValue.endsWith('\\"""'); // Trailing quote (single or double) or slash forces trailing new line

  const hasTrailingQuote = value.endsWith('"') && !hasTrailingTripleQuotes;
  const hasTrailingSlash = value.endsWith('\\');
  const forceTrailingNewline = hasTrailingQuote || hasTrailingSlash;
  const printAsMultipleLines =
    !(options !== null && options !== void 0 && options.minimize) && // add leading and trailing new lines only if it improves readability
    (!isSingleLine ||
      value.length > 70 ||
      forceTrailingNewline ||
      forceLeadingNewLine ||
      hasTrailingTripleQuotes);
  let result = ''; // Format a multi-line block quote to account for leading space.

  const skipLeadingNewLine =
    isSingleLine && (0, _characterClasses.isWhiteSpace)(value.charCodeAt(0));

  if ((printAsMultipleLines && !skipLeadingNewLine) || forceLeadingNewLine) {
    result += '\n';
  }

  result += escapedValue;

  if (printAsMultipleLines || forceTrailingNewline) {
    result += '\n';
  }

  return '"""' + result + '"""';
}

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