Squashed 'third_party/allwpilib_2019/' content from commit bd05dfa1c

Change-Id: I2b1c2250cdb9b055133780c33593292098c375b7
git-subtree-dir: third_party/allwpilib_2019
git-subtree-split: bd05dfa1c7cca74c4fac451e7b9d6a37e7b53447
diff --git a/styleguide/checkstyle.xml b/styleguide/checkstyle.xml
new file mode 100644
index 0000000..0a690b6
--- /dev/null
+++ b/styleguide/checkstyle.xml
@@ -0,0 +1,293 @@
+<?xml version="1.0"?>
+<!DOCTYPE
+module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN"
+"http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
+<!--
+    Checkstyle configuration that checks the Google coding conventions from Google Java Style
+    that can be found at https://google.github.io/styleguide/javaguide.html.
+
+    Checkstyle is very configurable. Be sure to read the documentation at
+    http://checkstyle.sf.net (or in your downloaded distribution).
+
+    To completely disable a check, just comment it out or delete it from the file.
+
+    Authors: Max Vetrenko, Ruslan Diachenko, Roman Ivanov.
+ -->
+<module name="Checker">
+  <property name="charset"
+            value="UTF-8" />
+  <property name="severity"
+            value="error" />
+  <module name="SuppressionFilter">
+    <property name="file"
+              value="${config_loc}/suppressions.xml" />
+  </module>
+  <property name="fileExtensions"
+            value="java, properties, xml" />
+  <!-- Checks for whitespace                               -->
+  <!-- See http://checkstyle.sf.net/config_whitespace.html -->
+  <module name="FileTabCharacter">
+    <property name="eachLine"
+              value="true" />
+  </module>
+  <module name="NewlineAtEndOfFile">
+    <property name="lineSeparator"
+              value="lf" />
+  </module>
+  <module name="SuppressWarningsFilter" />
+  <module name="TreeWalker">
+    <module name="SuppressWarningsHolder" />
+    <module name="OuterTypeFilename" />
+    <module name="IllegalTokenText">
+      <property name="tokens"
+                value="STRING_LITERAL, CHAR_LITERAL" />
+      <property name="format"
+                value="\\u00(08|09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)" />
+      <property name="message"
+                value="Avoid using corresponding octal or Unicode escape." />
+    </module>
+    <module name="AvoidEscapedUnicodeCharacters">
+      <property name="allowEscapesForControlCharacters"
+                value="true" />
+      <property name="allowByTailComment"
+                value="true" />
+      <property name="allowNonPrintableEscapes"
+                value="true" />
+    </module>
+    <module name="LineLength">
+      <property name="max"
+                value="100" />
+      <property name="ignorePattern"
+                value="^package.*|^import.*|a href|href|http://|https://|ftp://" />
+    </module>
+    <module name="ImportOrder">
+      <property name="option"
+                value="bottom"/>
+      <property name="groups"
+                value="/^java\./,javax,com,org,/^edu\./,*,/^edu\.wpi\./,/^edu\.wpi\.first\.wpilibj\.examples\./"/>
+      <property name="separated"
+                value="true"/>
+      <property name="sortStaticImportsAlphabetically"
+                value="true"/>
+    </module>
+    <module name="AvoidStarImport" />
+    <module name="RedundantImport" />
+    <module name="UnusedImports" />
+    <module name="OneTopLevelClass" />
+    <module name="NoLineWrap" />
+    <module name="EmptyBlock">
+      <property name="option"
+                value="TEXT" />
+      <property name="tokens"
+                value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH" />
+    </module>
+    <module name="NeedBraces" />
+    <module name="LeftCurly" />
+    <module name="RightCurly" />
+    <module name="RightCurly">
+      <property name="option"
+                value="alone" />
+      <property name="tokens"
+                value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, LITERAL_DO, STATIC_INIT, INSTANCE_INIT" />
+    </module>
+    <module name="WhitespaceAround">
+      <property name="allowEmptyConstructors"
+                value="true" />
+      <property name="allowEmptyMethods"
+                value="true" />
+      <property name="allowEmptyTypes"
+                value="true" />
+      <property name="allowEmptyLoops"
+                value="true" />
+      <message key="ws.notFollowed"
+               value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)" />
+      <message key="ws.notPreceded"
+               value="WhitespaceAround: ''{0}'' is not preceded with whitespace." />
+    </module>
+    <module name="WhitespaceAfter" />
+    <module name="OneStatementPerLine" />
+    <module name="MultipleVariableDeclarations" />
+    <module name="ArrayTypeStyle" />
+    <module name="MissingSwitchDefault" />
+    <module name="FallThrough" />
+    <module name="SimplifyBooleanExpression" />
+    <module name="SimplifyBooleanReturn" />
+    <module name="StringLiteralEquality" />
+    <module name="UnnecessaryParentheses" />
+    <module name="UpperEll" />
+    <module name="ModifierOrder" />
+    <module name="RedundantModifier" />
+    <module name="EmptyLineSeparator">
+      <property name="allowNoEmptyLineBetweenFields"
+                value="true" />
+    </module>
+    <module name="SeparatorWrap">
+      <property name="tokens"
+                value="DOT" />
+      <property name="option"
+                value="nl" />
+    </module>
+    <module name="SeparatorWrap">
+      <property name="tokens"
+                value="COMMA" />
+      <property name="option"
+                value="EOL" />
+    </module>
+    <module name="PackageName">
+      <property name="format"
+                value="^[a-z]+(\.[a-z][a-z0-9]*)*$" />
+      <message key="name.invalidPattern"
+               value="Package name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="TypeName">
+      <message key="name.invalidPattern"
+               value="Type name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="MemberName">
+      <property name="format"
+                value="^m_[a-z][a-z0-9][a-zA-Z0-9]*$" />
+      <message key="name.invalidPattern"
+               value="Member name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="ParameterName">
+      <property name="format"
+                value="^[a-z][a-z0-9][a-zA-Z0-9]*$" />
+      <message key="name.invalidPattern"
+               value="Parameter name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="CatchParameterName">
+      <property name="format"
+                value="^[a-z][a-z0-9][a-zA-Z0-9]*$" />
+      <message key="name.invalidPattern"
+               value="Catch parameter name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="LocalVariableName">
+      <property name="tokens"
+                value="VARIABLE_DEF" />
+      <property name="format"
+                value="^[a-z][a-z0-9][a-zA-Z0-9]*$" />
+      <property name="allowOneCharVarInForLoop"
+                value="true" />
+      <message key="name.invalidPattern"
+               value="Local variable name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="ClassTypeParameterName">
+      <property name="format"
+                value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)" />
+      <message key="name.invalidPattern"
+               value="Class type name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="MethodTypeParameterName">
+      <property name="format"
+                value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)" />
+      <message key="name.invalidPattern"
+               value="Method type name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="InterfaceTypeParameterName">
+      <property name="format"
+                value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)" />
+      <message key="name.invalidPattern"
+               value="Interface type name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="NoFinalizer" />
+    <module name="GenericWhitespace">
+      <message key="ws.followed"
+               value="GenericWhitespace ''{0}'' is followed by whitespace." />
+      <message key="ws.preceded"
+               value="GenericWhitespace ''{0}'' is preceded with whitespace." />
+      <message key="ws.illegalFollow"
+               value="GenericWhitespace ''{0}'' should followed by whitespace." />
+      <message key="ws.notPreceded"
+               value="GenericWhitespace ''{0}'' is not preceded with whitespace." />
+    </module>
+    <module name="Indentation">
+      <property name="basicOffset"
+                value="2" />
+      <property name="braceAdjustment"
+                value="0" />
+      <property name="caseIndent"
+                value="2" />
+      <property name="throwsIndent"
+                value="4" />
+      <property name="lineWrappingIndentation"
+                value="4" />
+      <property name="arrayInitIndent"
+                value="2" />
+    </module>
+    <module name="AbbreviationAsWordInName">
+      <property name="ignoreFinal"
+                value="false" />
+      <property name="allowedAbbreviationLength"
+                value="3" />
+    </module>
+    <module name="OverloadMethodsDeclarationOrder" />
+    <module name="VariableDeclarationUsageDistance" />
+    <module name="MethodParamPad" />
+    <module name="TypecastParenPad" />
+    <module name="OperatorWrap">
+      <property name="option"
+                value="NL" />
+      <property name="tokens"
+                value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR, LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR " />
+    </module>
+    <module name="AnnotationLocation">
+      <property name="tokens"
+                value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF" />
+    </module>
+    <module name="AnnotationLocation">
+      <property name="tokens"
+                value="VARIABLE_DEF" />
+      <property name="allowSamelineMultipleAnnotations"
+                value="true" />
+    </module>
+    <module name="MissingOverride" />
+    <module name="NonEmptyAtclauseDescription" />
+    <module name="JavadocTagContinuationIndentation" />
+    <module name="SummaryJavadoc">
+      <property name="forbiddenSummaryFragments"
+                value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )" />
+    </module>
+    <module name="JavadocParagraph" />
+    <module name="AtclauseOrder">
+      <property name="tagOrder"
+                value="@param, @return, @throws, @deprecated" />
+      <property name="target"
+                value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF" />
+    </module>
+    <module name="JavadocMethod">
+      <property name="scope"
+                value="public" />
+      <property name="allowMissingParamTags"
+                value="true" />
+      <property name="allowMissingThrowsTags"
+                value="true" />
+      <property name="allowMissingReturnTag"
+                value="true" />
+      <property name="minLineCount"
+                value="2" />
+      <property name="allowedAnnotations"
+                value="Override, Test, Before, After, BeforeClass, AfterClass, Parameters" />
+      <property name="allowUndeclaredRTE"
+                value="true" />
+      <property name="allowThrowsTagsForSubclasses"
+                value="true" />
+      <property name="suppressLoadErrors"
+                value="true" />
+    </module>
+    <module name="MethodName">
+      <property name="format"
+                value="^[a-z][a-z0-9][a-zA-Z0-9_]*$" />
+      <message key="name.invalidPattern"
+               value="Method name ''{0}'' must match pattern ''{1}''." />
+    </module>
+    <module name="SingleLineJavadoc">
+      <property name="ignoreInlineTags"
+                value="false" />
+    </module>
+    <module name="EmptyCatchBlock">
+      <property name="exceptionVariableName"
+                value="expected" />
+    </module>
+    <module name="CommentsIndentation" />
+  </module>
+</module>