Field Detail

• protected static final int ALPHA_0

  Character code for '0'.

• protected static final int ALPHA_9

  Character code for '9'.

• protected static final int CLOSED_BRACKET

  Closing bracket character code.

• protected static final int CLOSED_CURLY

  Closing curly brace character code.

• protected static final int COMMA

  Comma character code.

• protected static final int DECIMAL_POINT

  Decimal point character code.

• protected static final int LETTER_BIG_E

  Uppercase exponent marker.

• protected static final int LETTER_E

  Lowercase exponent marker.

• protected static final int MINUS

  Minus sign character code.

• protected static final int PLUS

  Plus sign character code.

Method Detail

• public static String debugCharDescription(int c)

  Returns a debug string for a character code.

  Parameters:

  c - the character code to describe

  Returns:

  a printable character description

• public static String errorDetails(String message, char[] array, int index, int ch)

  Builds a human-readable parse error description for the current character position.

  Parameters:

  message - the high-level error message

  array - the source character array

  index - the failing index

  ch - the current character code

  Returns:

  the formatted diagnostic text

• public static boolean hasDecimalChar(char[] chars, boolean negative)

  Tests whether a character range contains decimal punctuation.

  Parameters:

  chars - the character array to inspect

  negative - whether the first character is a sign and should be skipped

  Returns:

  true if a decimal marker or exponent marker is present

• public static boolean isDecimalChar(int currentChar)

  Tests whether the supplied code point is decimal punctuation.

  Parameters:

  currentChar - the character code to test

  Returns:

  true for sign, exponent, or decimal point characters

• public static boolean isDecimalDigit(int c)

  Tests whether the supplied code point can appear in a decimal number.

  Parameters:

  c - the character code to test

  Returns:

  true for digits and decimal punctuation

• protected static boolean isDelimiter(int c)

  Tests whether the supplied code point terminates a JSON number token.

  Parameters:

  c - the character code to test

  Returns:

  true if the code point is a structural delimiter

• public static boolean isDigit(int c)

  Tests whether the supplied code point is an ASCII digit.

  Parameters:

  c - the character code to test

  Returns:

  true if the code point is between '0' and '9'

• public static boolean isInteger(char[] digitChars)

  Tests whether the supplied digits fit in an int.

  Parameters:

  digitChars - the digit characters to test

  Returns:

  true if the value is within the int range

• public static boolean isInteger(char[] digitChars, int offset, int len)

  Tests whether the supplied digit range fits in an int.

  Parameters:

  digitChars - the digit characters to test

  offset - the inclusive range start

  len - the number of characters to compare

  Returns:

  true if the value is within the int range

• public static boolean isLong(char[] digitChars)

  Tests whether the supplied digits fit in a long.

  Parameters:

  digitChars - the digit characters to test

  Returns:

  true if the value is within the long range

• public static boolean isLong(char[] digitChars, int offset, int len)

  Tests whether the supplied digit range fits in a long.

  Parameters:

  digitChars - the digit characters to test

  offset - the inclusive range start

  len - the number of characters to compare

  Returns:

  true if the value is within the long range

• public static boolean isNumberDigit(int c)

  Tests whether the supplied code point is a numeric digit.

  Parameters:

  c - the character code to test

  Returns:

  true if the code point is between '0' and '9'

• public static BigDecimal parseBigDecimal(char[] buffer)

  Parses a BigDecimal from the supplied characters.

  Parameters:

  buffer - the character array to parse

  Returns:

  the parsed decimal value

• public static double parseDouble(char[] buffer, int from, int to)

  Parses a double from a character range.

  Parameters:

  buffer - the character array to parse

  from - the inclusive range start

  to - the exclusive range end

  Returns:

  the parsed value

• public static float parseFloat(char[] buffer, int from, int to)

  Parses a float from a character range.

  Parameters:

  buffer - the character array to parse

  from - the inclusive range start

  to - the exclusive range end

  Returns:

  the parsed value

• public static int parseInt(char[] digitChars)

  Parses an int from the supplied digit characters.

  Parameters:

  digitChars - the digit characters to parse

  Returns:

  the parsed value

• public static int parseIntFromTo(char[] digitChars, int offset, int to)

  Parses an int from a character range.

  Parameters:

  digitChars - the digit characters to parse

  offset - the inclusive range start

  to - the exclusive range end

  Returns:

  the parsed value

• public static int parseIntFromToIgnoreDot(char[] digitChars, int offset, int to)

  Parses an int from a character range while ignoring decimal points.

  Parameters:

  digitChars - the digit characters to parse

  offset - the inclusive range start

  to - the exclusive range end

  Returns:

  the parsed value

• public static Number parseJsonNumber(char[] buffer)

  Parses a JSON number from the supplied character array.

  Parameters:

  buffer - the character array containing the number

  Returns:

  the parsed Number

• public static Number parseJsonNumber(char[] buffer, int from, int to)

  Parses a JSON number from a character range.

  Parameters:

  buffer - the character array containing the number

  from - the inclusive range start

  to - the exclusive range end

  Returns:

  the parsed Number

• public static Number parseJsonNumber(char[] buffer, int from, int max, int[] size)

  Parses a JSON number and optionally reports the stopping index.

  Parameters:

  buffer - the character array containing the number

  from - the inclusive range start

  max - the exclusive scan limit

  size - optional single-element output array receiving the stopping index

  Returns:

  the parsed Number

• public static long parseLong(char[] digitChars)

  Parses a long from the supplied digit characters.

  Parameters:

  digitChars - the digit characters to parse

  Returns:

  the parsed value

• public static long parseLongFromTo(char[] digitChars, int offset, int to)

  Parses a long from a character range.

  Parameters:

  digitChars - the digit characters to parse

  offset - the inclusive range start

  to - the exclusive range end

  Returns:

  the parsed value

• public static long parseLongFromToIgnoreDot(char[] digitChars, int offset, int to)

  Parses a long from a character range while ignoring decimal points.

  Parameters:

  digitChars - the digit characters to parse

  offset - the inclusive range start

  to - the exclusive range end

  Returns:

  the parsed value

• public static char[] readNumber(char[] array, int idx, int len)

  Copies a contiguous JSON number token into a new array.

  Parameters:

  array - the source character array

  idx - the index at which the number starts

  len - the exclusive scan limit

  Returns:

  a new array containing the number token

• public static int skipWhiteSpace(char[] array, int index, int length)

  Advances past ASCII whitespace.

  Parameters:

  array - the character array to scan

  index - the index to start from

  length - the exclusive scan limit

  Returns:

  the first index whose character is greater than space, or length