'use strict';

const isWindows = process.platform === 'win32';

module.exports = {
  // Alphabet chars.
  CHAR_UPPERCASE_A: 65, /* A */
  CHAR_LOWERCASE_A: 97, /* a */
  CHAR_UPPERCASE_Z: 90, /* Z */
  CHAR_LOWERCASE_Z: 122, /* z */

  // Non-alphabetic chars.
  CHAR_DOT: 46, /* . */
  CHAR_FORWARD_SLASH: 47, /* / */
  CHAR_BACKWARD_SLASH: 92, /* \ */
  CHAR_VERTICAL_LINE: 124, /* | */
  CHAR_COLON: 58, /* : */
  CHAR_QUESTION_MARK: 63, /* ? */
  CHAR_UNDERSCORE: 95, /* _ */
  CHAR_LINE_FEED: 10, /* \n */
  CHAR_CARRIAGE_RETURN: 13, /* \r */
  CHAR_TAB: 9, /* \t */
  CHAR_FORM_FEED: 12, /* \f */
  CHAR_EXCLAMATION_MARK: 33, /* ! */
  CHAR_HASH: 35, /* # */
  CHAR_SPACE: 32, /*   */
  CHAR_NO_BREAK_SPACE: 160, /* \u00A0 */
  CHAR_ZERO_WIDTH_NOBREAK_SPACE: 65279, /* \uFEFF */
  CHAR_LEFT_SQUARE_BRACKET: 91, /* [ */
  CHAR_RIGHT_SQUARE_BRACKET: 93, /* ] */
  CHAR_LEFT_ANGLE_BRACKET: 60, /* < */
  CHAR_RIGHT_ANGLE_BRACKET: 62, /* > */
  CHAR_LEFT_CURLY_BRACKET: 123, /* { */
  CHAR_RIGHT_CURLY_BRACKET: 125, /* } */
  CHAR_HYPHEN_MINUS: 45, /* - */
  CHAR_PLUS: 43, /* + */
  CHAR_DOUBLE_QUOTE: 34, /* " */
  CHAR_SINGLE_QUOTE: 39, /* ' */
  CHAR_PERCENT: 37, /* % */
  CHAR_SEMICOLON: 59, /* ; */
  CHAR_CIRCUMFLEX_ACCENT: 94, /* ^ */
  CHAR_GRAVE_ACCENT: 96, /* ` */
  CHAR_AT: 64, /* @ */
  CHAR_AMPERSAND: 38, /* & */
  CHAR_EQUAL: 61, /* = */

  // Digits
  CHAR_0: 48, /* 0 */
  CHAR_9: 57, /* 9 */

  EOL: isWindows ? '\r\n' : '\n'
};