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…#2231) * Add settings for kind of newline to use * Fix amp in javadoc * Fixing link in javadoc * Doc: use JSON instead of Json Co-authored-by: Marcono1234 <Marcono1234@users.noreply.github.com> * PR Feedback: Objects.requireNonNull Co-authored-by: Marcono1234 <Marcono1234@users.noreply.github.com> * PR Feedback: $next-version$, don't hardcode Co-authored-by: Marcono1234 <Marcono1234@users.noreply.github.com> * s/testNewlineLF/testNewlineLf/ Co-authored-by: Marcono1234 <Marcono1234@users.noreply.github.com> * Implement PR feedback * Round two of review * Restore copyright year, no reason to update * Rename OS named enum values to CR and LF * Add javadoc to NewlineStyle.getValue() * Implement PR feedback, round 2 * Fix typo Co-authored-by: Marcono1234 <Marcono1234@users.noreply.github.com> * No need for line break Co-authored-by: Marcono1234 <Marcono1234@users.noreply.github.com> * Shorter, cleaner doc Co-authored-by: Marcono1234 <Marcono1234@users.noreply.github.com> * Using a FormattingStyle for pretty print * Fix Junit4 and Truth after merge from master * Implement review feedback * Double backslash in message --------- Co-authored-by: Marcono1234 <Marcono1234@users.noreply.github.com>
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|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| /* | ||
| * Copyright (C) 2022 Google Inc. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
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| package com.google.gson; | ||
|
|
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| import java.util.Objects; | ||
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| /** | ||
| * A class used to control what the serialization looks like. | ||
| * | ||
| * <p>It currently defines the kind of newline to use, and the indent, but | ||
| * might add more in the future.</p> | ||
| * | ||
| * @see <a href="https://en.wikipedia.org/wiki/Newline">Wikipedia Newline article</a> | ||
| * | ||
| * @since $next-version$ | ||
| */ | ||
| public class FormattingStyle { | ||
| private final String newline; | ||
| private final String indent; | ||
|
|
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| static public final FormattingStyle DEFAULT = | ||
| new FormattingStyle("\n", " "); | ||
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| private FormattingStyle(String newline, String indent) { | ||
| Objects.requireNonNull(newline, "newline == null"); | ||
| Objects.requireNonNull(indent, "indent == null"); | ||
| if (!newline.matches("[\r\n]*")) { | ||
| throw new IllegalArgumentException( | ||
| "Only combinations of \\n and \\r are allowed in newline."); | ||
| } | ||
| if (!indent.matches("[ \t]*")) { | ||
| throw new IllegalArgumentException( | ||
| "Only combinations of spaces and tabs allowed in indent."); | ||
| } | ||
| this.newline = newline; | ||
| this.indent = indent; | ||
| } | ||
|
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| /** | ||
| * Creates a {@link FormattingStyle} with the specified newline setting. | ||
| * | ||
| * <p>It can be used to accommodate certain OS convention, for example | ||
| * hardcode {@code "\r"} for Linux and macos, {@code "\r\n"} for Windows, or | ||
| * call {@link java.lang.System#lineSeparator()} to match the current OS.</p> | ||
| * | ||
| * <p>Only combinations of {@code \n} and {@code \r} are allowed.</p> | ||
| * | ||
| * @param newline the string value that will be used as newline. | ||
| * @return a newly created {@link FormattingStyle} | ||
| */ | ||
| public FormattingStyle withNewline(String newline) { | ||
| return new FormattingStyle(newline, this.indent); | ||
| } | ||
|
|
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| /** | ||
| * Creates a {@link FormattingStyle} with the specified indent string. | ||
| * | ||
| * <p>Only combinations of spaces and tabs allowed in indent.</p> | ||
| * | ||
| * @param indent the string value that will be used as indent. | ||
| * @return a newly created {@link FormattingStyle} | ||
| */ | ||
| public FormattingStyle withIndent(String indent) { | ||
| return new FormattingStyle(this.newline, indent); | ||
| } | ||
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| /** | ||
| * The string value that will be used as a newline. | ||
| * | ||
| * @return the newline value. | ||
| */ | ||
| public String getNewline() { | ||
| return this.newline; | ||
| } | ||
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| /** | ||
| * The string value that will be used as indent. | ||
| * | ||
| * @return the indent value. | ||
| */ | ||
| public String getIndent() { | ||
| return this.indent; | ||
| } | ||
| } |
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