Jackson is "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java".

Jackson Core Source Code files are provided in the source packge (jackson-core-2.14.0-sources.jar). You can download it at Jackson Maven Website.

You can also browse Jackson Core Source Code below:

⏎ com/fasterxml/jackson/core/io/doubleparser/package-info.java

/**
 * References:
 * <dl>
 *     <dt>This class has been derived from "FastDoubleParser".</dt>
 *     <dd>Copyright (c) Werner Randelshofer. Apache 2.0 License.
 *         <a href="https://github.com/wrandelshofer/FastDoubleParser">github.com</a>.</dd>
 * </dl>
 */

/**
 * Provides parsers that parse a {@code FloatingPointLiteral} from a
 * {@link java.lang.CharSequence}, {@code char} array, or {@code byte} array
 * ({@code str});.
 * <p>
 * Leading and trailing whitespace characters in {@code str} are ignored.
 * Whitespace is removed as if by the {@link java.lang.String#trim()} method;
 * that is, characters in the range [U+0000,U+0020].
 * <p>
 * The rest of {@code str} should constitute a  {@code FloatingPointLiteral} as described
 * by the lexical syntax rules shown below:
 * <blockquote>
 * <dl>
 * <dt><i>FloatingPointLiteral:</i></dt>
 * <dd><i>[Sign]</i> {@code NaN}</dd>
 * <dd><i>[Sign]</i> {@code Infinity}</dd>
 * <dd><i>[Sign] DecimalFloatingPointLiteral</i></dd>
 * <dd><i>[Sign] HexFloatingPointLiteral</i></dd>
 * <dd><i>SignedInteger</i></dd>
 * </dl>
 *
 * <dl>
 * <dt><i>HexFloatingPointLiteral</i>:
 * <dd><i>HexSignificand BinaryExponent [FloatTypeSuffix]</i>
 * </dl>
 *
 * <dl>
 * <dt><i>HexSignificand:</i>
 * <dd><i>HexNumeral</i>
 * <dd><i>HexNumeral</i> {@code .}
 * <dd>{@code 0x} <i>[HexDigits]</i> {@code .} <i>HexDigits</i>
 * <dd>{@code 0X} <i>[HexDigits]</i> {@code .} <i>HexDigits</i>
 * </dl>
 *
 * <dl>
 * <dt><i>BinaryExponent:</i>
 * <dd><i>BinaryExponentIndicator SignedInteger</i>
 * </dl>
 *
 * <dl>
 * <dt><i>BinaryExponentIndicator:</i>
 * <dd>{@code p}
 * <dd>{@code P}
 * </dl>
 *
 * <dl>
 * <dt><i>DecimalFloatingPointLiteral:</i>
 * <dd><i>DecSignificand [DecExponent] [FloatTypeSuffix]</i>
 * </dl>
 *
 * <dl>
 * <dt><i>DecSignificand:</i>
 * <dd><i>Digits {@code .} [Digits]</i>
 * <dd><i>{@code .} Digits</i>
 * <dd><i>Digits</i>
 * </dl>
 *
 * <dl>
 * <dt><i>DecExponent:</i>
 * <dd><i>ExponentIndicator SignedInteger</i>
 * </dl>
 *
 * <dl>
 * <dt><i>ExponentIndicator:</i>
 * <dd><i>(one of)</i>
 * <dd><i>e E</i>
 * </dl>
 *
 * <dl>
 * <dt><i>SignedInteger:</i>
 * <dd><i>[Sign] Digits</i>
 * </dl>
 *
 * <dl>
 * <dt><i>Sign:</i>
 * <dd><i>(one of)</i>
 * <dd><i>+ -</i>
 * </dl>
 *
 * <dl>
 * <dt><i>Digits:</i>
 * <dd><i>Digit {Digit}</i>
 * </dl>
 *
 * <dl>
 * <dt><i>HexNumeral:</i>
 * <dd>{@code 0} {@code x} <i>HexDigits</i>
 * <dd>{@code 0} {@code X} <i>HexDigits</i>
 * </dl>
 *
 * <dl>
 * <dt><i>HexDigits:</i>
 * <dd><i>HexDigit {HexDigit}</i>
 * </dl>
 *
 * <dl>
 * <dt><i>HexDigit:</i>
 * <dd><i>(one of)</i>
 * <dd>{@code 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F}
 * </dl>
 *
 * <dl>
 * <dt><i>FloatTypeSuffix:</i>
 * <dd><i>(one of)</i>
 * <dd>{@code f F d D}
 * </dl>
 * </blockquote>
 * <p>
 * References:
 * <dl>
 *     <dt>The Java® Language Specification, Java SE 18 Edition, Chapter 3. Lexical Structure, 3.10.2. Floating-Point Literals </dt>
 *     <dd><a href="https://docs.oracle.com/javase/specs/jls/se18/html/jls-3.html#jls-3.10.2">docs.oracle.com</a></dd>
 * </dl>
 */
package com.fasterxml.jackson.core.io.doubleparser;

⏎ com/fasterxml/jackson/core/io/doubleparser/package-info.java

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File name: jackson-core-2.14.0-sources.jar
File size: 497693 bytes
Release date: 2022-11-05
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