JDK15RegexTranslator.java
| Index Score | ||
|---|---|---|
 |
 |
net.sf.saxon.regex |
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 |
Saxon |
View: Reasons, Metrics, Source Code
These are the metrics that contribute to the Enerjy Score for this file, ranked by impact. So the metrics listed at the top influence the score to a greater extent that the metrics listed at the bottom.
| Metric | Description | |
|---|---|---|
| CYCLOMATIC | Cyclomatic complexity |  |
| LOOPS | Number of loops | |
| JAVA0034 | JAVA0034 Missing braces in if statement | |
| ELOC | Effective lines of code | |
| RETURNS | Number of return points from functions | |
| LOC | Lines of code | |
| UNIQUE_OPERANDS | Number of unique operands | |
| SIZE | Size of the file in bytes | |
| PROGRAM_VOCAB | Halstead program vocabulary | |
| OPERATORS | Number of operators | |
| PROGRAM_LENGTH | Halstead program length | |
| LOGICAL_LINES | Number of statements | |
| LINE_COMMENT | Number of line comments | |
| OPERANDS | Number of operands | |
| INTERFACE_COMPLEXITY | Interface complexity | |
| LINES | Number of lines in the source file | |
| EXEC_COMMENTS | Comments in executable code | |
| COMPARISONS | Number of comparison operators | |
| JAVA0035 | JAVA0035 Missing braces in for statement | |
| FUNCTIONS | Number of function declarations | |
| BLOCKS | Number of blocks | |
| JAVA0031 | JAVA0031 Case statement not properly closed | |
| PARAMS | Number of formal parameter declarations | |
| DECL_COMMENTS | Comments in declarations | |
| JAVA0270 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0262 | JAVA0262 Use of char in integer context | |
| EXITS | Procedure exits | |
| JAVA0064 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0267 | JAVA0267 Use of System.err | |
| JAVA0049 | JAVA0049 Nested block at depth N (maximum: M) | |
| UNIQUE_OPERATORS | Number of unique operators | |
| JAVA0143 | JAVA0143 Synchronized method | |
| JAVA0081 | JAVA0081 Boolean literal in comparison | |
| JAVA0032 | JAVA0032 Switch statement missing default | |
| JAVA0123 | JAVA0123 Use all three components of for loop | |
| JAVA0040 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0163 | JAVA0163 Empty statement | |
| NEST_DEPTH | Maximum nesting depth | |
| WHITESPACE | Number of whitespace lines | |
| JAVA0036 | JAVA0036 Missing braces in while statement | |
| JAVA0068 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0177 | JAVA0177 Variable declaration missing initializer | |
| JAVA0119 | JAVA0119 Control variable changed within body of for loop | |
| PROGRAM_VOLUME | Halstead program volume | |
| JAVA0136 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0126 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0179 | JAVA0179 Local variable hides visible field | |
| JAVA0076 | JAVA0076 Use of magic number | |
| JAVA0100 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0130 | JAVA0130 Non-static method does not use instance fields | |
| DOC_COMMENT | Number of javadoc comment lines | |
| JAVA0108 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0145 | JAVA0145 Tab character used in source file | |
package net.sf.saxon.regex;
import net.sf.saxon.Err;
import net.sf.saxon.om.FastStringBuffer;
import net.sf.saxon.om.XMLChar;
import net.sf.saxon.sort.IntHashSet;
import net.sf.saxon.value.Whitespace;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
/**
* This class translates XML Schema regex syntax into JDK 1.5 regex syntax. This differs from the JDK 1.4
* translator because JDK 1.5 handles non-BMP characters (wide characters) in places where JDK 1.4 does not,
* for example in a range such as [X-Y]. This enables much of the code from the 1.4 translator to be
* removed.
* Author: James Clark
* Modified by Michael Kay (a) to integrate the code into Saxon, and (b) to support XPath additions
* to the XML Schema regex syntax. This version also removes most of the complexities of handling non-BMP
* characters, since JDK 1.5 handles these natively.
*/
public class JDK15RegexTranslator {
// TODO: retrofit the changes for handling caseBlind comparison to the JDK 1.4 translator
/**
* Translates XML Schema and XPath regexes into <code>java.util.regex</code> regexes.
*
* @see java.util.regex.Pattern
* @see <a href="http://www.w3.org/TR/xmlschema-2/#regexs">XML Schema Part 2</a>
*/
private final CharSequence regExp;
private boolean isXPath;
private boolean ignoreWhitespace;
private boolean inCharClassExpr;
private boolean caseBlind;
private int pos = 0;
private final int length;
private char curChar;
private boolean eos = false;
private int currentCapture = 0;
private IntHashSet captures = new IntHashSet();
private final FastStringBuffer result = new FastStringBuffer(32);
private static final String categories = "LMNPZSC";
private static final CharClass[] categoryCharClasses = new CharClass[categories.length()];
private static final String subCategories = "LuLlLtLmLoMnMcMeNdNlNoPcPdPsPePiPfPoZsZlZpSmScSkSoCcCfCoCn";
private static final CharClass[] subCategoryCharClasses = new CharClass[subCategories.length() / 2];
private static final int NONBMP_MIN = 0x10000;
private static final int NONBMP_MAX = 0x10FFFF;
//static final Localizer localizer = new Localizer(RegexTranslator.class);
private static final String[] blockNames = {
"BasicLatin",
"Latin-1Supplement",
"LatinExtended-A",
"LatinExtended-B",
"IPAExtensions",
"SpacingModifierLetters",
"CombiningDiacriticalMarks",
"Greek",
"Cyrillic",
"Armenian",
"Hebrew",
"Arabic",
"Syriac",
"Thaana",
"Devanagari",
"Bengali",
"Gurmukhi",
"Gujarati",
"Oriya",
"Tamil",
"Telugu",
"Kannada",
"Malayalam",
"Sinhala",
"Thai",
"Lao",
"Tibetan",
"Myanmar",
"Georgian",
"HangulJamo",
"Ethiopic",
"Cherokee",
"UnifiedCanadianAboriginalSyllabics",
"Ogham",
"Runic",
"Khmer",
"Mongolian",
"LatinExtendedAdditional",
"GreekExtended",
"GeneralPunctuation",
"SuperscriptsandSubscripts",
"CurrencySymbols",
"CombiningMarksforSymbols",
"LetterlikeSymbols",
"NumberForms",
"Arrows",
"MathematicalOperators",
"MiscellaneousTechnical",
"ControlPictures",
"OpticalCharacterRecognition",
"EnclosedAlphanumerics",
"BoxDrawing",
"BlockElements",
"GeometricShapes",
"MiscellaneousSymbols",
"Dingbats",
"BraillePatterns",
"CJKRadicalsSupplement",
"KangxiRadicals",
"IdeographicDescriptionCharacters",
"CJKSymbolsandPunctuation",
"Hiragana",
"Katakana",
"Bopomofo",
"HangulCompatibilityJamo",
"Kanbun",
"BopomofoExtended",
"EnclosedCJKLettersandMonths",
"CJKCompatibility",
"CJKUnifiedIdeographsExtensionA",
"CJKUnifiedIdeographs",
"YiSyllables",
"YiRadicals",
"HangulSyllables",
// surrogates excluded because there are never any *characters* with codes in surrogate range
// "PrivateUse", excluded because 3.1 adds non-BMP ranges
"CJKCompatibilityIdeographs",
"AlphabeticPresentationForms",
"ArabicPresentationForms-A",
"CombiningHalfMarks",
"CJKCompatibilityForms",
"SmallFormVariants",
"ArabicPresentationForms-B",
"Specials",
"HalfwidthandFullwidthForms",
"Specials"
};
/**
* Names of blocks including ranges outside the BMP.
*/
private static final String[] specialBlockNames = {
"OldItalic",
"Gothic",
"Deseret",
"ByzantineMusicalSymbols",
"MusicalSymbols",
"MathematicalAlphanumericSymbols",
"CJKUnifiedIdeographsExtensionB",
"CJKCompatibilityIdeographsSupplement",
"Tags",
"PrivateUse",
"HighSurrogates",
"HighPrivateUseSurrogates",
"LowSurrogates",
};
// This file was automatically generated by CategoriesGen
static final String CATEGORY_NAMES = "NoLoMnCfLlNlPoLuMcNdSoSmCo";
static final int[][] CATEGORY_RANGES = {
{
// No
0x10107, 0x10133,
0x10320, 0x10323
},
{
// Lo
0x10000, 0x1000b,
0x1000d, 0x10026,
0x10028, 0x1003a,
0x1003c, 0x1003d,
0x1003f, 0x1004d,
0x10050, 0x1005d,
0x10080, 0x100fa,
0x10300, 0x1031e,
0x10330, 0x10349,
0x10380, 0x1039d,
0x10450, 0x1049d,
0x10800, 0x10805,
0x10808, 0x10808,
0x1080a, 0x10835,
0x10837, 0x10838,
0x1083c, 0x1083c,
0x1083f, 0x1083f,
0x20000, 0x2a6d6,
0x2f800, 0x2fa1d
},
{
// Mn
0x1d167, 0x1d169,
0x1d17b, 0x1d182,
0x1d185, 0x1d18b,
0x1d1aa, 0x1d1ad,
0xe0100, 0xe01ef
},
{
// Cf
0x1d173, 0x1d17a,
0xe0001, 0xe0001,
0xe0020, 0xe007f
},
{
// Ll
0x10428, 0x1044f,
0x1d41a, 0x1d433,
0x1d44e, 0x1d454,
0x1d456, 0x1d467,
0x1d482, 0x1d49b,
0x1d4b6, 0x1d4b9,
0x1d4bb, 0x1d4bb,
0x1d4bd, 0x1d4c3,
0x1d4c5, 0x1d4cf,
0x1d4ea, 0x1d503,
0x1d51e, 0x1d537,
0x1d552, 0x1d56b,
0x1d586, 0x1d59f,
0x1d5ba, 0x1d5d3,
0x1d5ee, 0x1d607,
0x1d622, 0x1d63b,
0x1d656, 0x1d66f,
0x1d68a, 0x1d6a3,
0x1d6c2, 0x1d6da,
0x1d6dc, 0x1d6e1,
0x1d6fc, 0x1d714,
0x1d716, 0x1d71b,
0x1d736, 0x1d74e,
0x1d750, 0x1d755,
0x1d770, 0x1d788,
0x1d78a, 0x1d78f,
0x1d7aa, 0x1d7c2,
0x1d7c4, 0x1d7c9
},
{
// Nl
0x1034a, 0x1034a
},
{
// Po
0x10100, 0x10101,
0x1039f, 0x1039f
},
{
// Lu
0x10400, 0x10427,
0x1d400, 0x1d419,
0x1d434, 0x1d44d,
0x1d468, 0x1d481,
0x1d49c, 0x1d49c,
0x1d49e, 0x1d49f,
0x1d4a2, 0x1d4a2,
0x1d4a5, 0x1d4a6,
0x1d4a9, 0x1d4ac,
0x1d4ae, 0x1d4b5,
0x1d4d0, 0x1d4e9,
0x1d504, 0x1d505,
0x1d507, 0x1d50a,
0x1d50d, 0x1d514,
0x1d516, 0x1d51c,
0x1d538, 0x1d539,
0x1d53b, 0x1d53e,
0x1d540, 0x1d544,
0x1d546, 0x1d546,
0x1d54a, 0x1d550,
0x1d56c, 0x1d585,
0x1d5a0, 0x1d5b9,
0x1d5d4, 0x1d5ed,
0x1d608, 0x1d621,
0x1d63c, 0x1d655,
0x1d670, 0x1d689,
0x1d6a8, 0x1d6c0,
0x1d6e2, 0x1d6fa,
0x1d71c, 0x1d734,
0x1d756, 0x1d76e,
0x1d790, 0x1d7a8
},
{
// Mc
0x1d165, 0x1d166,
0x1d16d, 0x1d172
},
{
// Nd
0x104a0, 0x104a9,
0x1d7ce, 0x1d7ff
},
{
// So
0x10102, 0x10102,
0x10137, 0x1013f,
0x1d000, 0x1d0f5,
0x1d100, 0x1d126,
0x1d12a, 0x1d164,
0x1d16a, 0x1d16c,
0x1d183, 0x1d184,
0x1d18c, 0x1d1a9,
0x1d1ae, 0x1d1dd,
0x1d300, 0x1d356
},
{
// Sm
0x1d6c1, 0x1d6c1,
0x1d6db, 0x1d6db,
0x1d6fb, 0x1d6fb,
0x1d715, 0x1d715,
0x1d735, 0x1d735,
0x1d74f, 0x1d74f,
0x1d76f, 0x1d76f,
0x1d789, 0x1d789,
0x1d7a9, 0x1d7a9,
0x1d7c3, 0x1d7c3
},
{
// Co
0xf0000, 0xffffd,
0x100000, 0x10fffd
}
};
// end of generated code
/**
* CharClass for each block name in specialBlockNames.
*/
private static final CharClass[] specialBlockCharClasses = {
new CharRange(0x10300, 0x1032F),
new CharRange(0x10330, 0x1034F),
new CharRange(0x10400, 0x1044F),
new CharRange(0x1D000, 0x1D0FF),
new CharRange(0x1D100, 0x1D1FF),
new CharRange(0x1D400, 0x1D7FF),
new CharRange(0x20000, 0x2A6D6),
new CharRange(0x2F800, 0x2FA1F),
new CharRange(0xE0000, 0xE007F),
new Union(new CharClass[]{
new CharRange(0xE000, 0xF8FF),
new CharRange(0xF0000, 0xFFFFD),
new CharRange(0x100000, 0x10FFFD)
}),
Empty.getInstance(),
Empty.getInstance(),
Empty.getInstance()
};
private static final CharClass DOT_SCHEMA =
new Complement(new Union(new CharClass[]{new SingleChar('\n'), new SingleChar('\r')}));
private static final CharClass ESC_d = new Property("Nd");
private static final CharClass ESC_D = new Complement(ESC_d);
private static final CharClass ESC_W = new Union(new CharClass[]{computeCategoryCharClass('P'),
computeCategoryCharClass('Z'),
computeCategoryCharClass('C')});
//was: new Property("P"), new Property("Z"), new Property("C") }
private static final CharClass ESC_w = new Complement(ESC_W);
private static final CharClass ESC_s = new Union(new CharClass[]{
new SingleChar(' '),
new SingleChar('\n'),
new SingleChar('\r'),
new SingleChar('\t')
});
// This file was automatically generated by NamingExceptionsGen
// class NamingExceptions {
static final String NMSTRT_INCLUDES =
"\u003A\u005F\u02BB\u02BC\u02BD\u02BE\u02BF\u02C0\u02C1\u0559" +
"\u06E5\u06E6\u212E";
static final String NMSTRT_EXCLUDE_RANGES =
"\u00AA\u00BA\u0132\u0133\u013F\u0140\u0149\u0149\u017F\u017F" +
"\u01C4\u01CC\u01F1\u01F3\u01F6\u01F9\u0218\u0233\u02A9\u02AD" +
"\u03D7\u03D7\u03DB\u03DB\u03DD\u03DD\u03DF\u03DF\u03E1\u03E1" +
"\u0400\u0400\u040D\u040D\u0450\u0450\u045D\u045D\u048C\u048F" +
"\u04EC\u04ED\u0587\u0587\u06B8\u06B9\u06BF\u06BF\u06CF\u06CF" +
"\u06FA\u07A5\u0950\u0950\u0AD0\u0AD0\u0D85\u0DC6\u0E2F\u0E2F" +
"\u0EAF\u0EAF\u0EDC\u0F00\u0F6A\u1055\u1101\u1101\u1104\u1104" +
"\u1108\u1108\u110A\u110A\u110D\u110D\u1113\u113B\u113D\u113D" +
"\u113F\u113F\u1141\u114B\u114D\u114D\u114F\u114F\u1151\u1153" +
"\u1156\u1158\u1162\u1162\u1164\u1164\u1166\u1166\u1168\u1168" +
"\u116A\u116C\u116F\u1171\u1174\u1174\u1176\u119D\u119F\u11A2" +
"\u11A9\u11AA\u11AC\u11AD\u11B0\u11B6\u11B9\u11B9\u11BB\u11BB" +
"\u11C3\u11EA\u11EC\u11EF\u11F1\u11F8\u1200\u18A8\u207F\u2124" +
"\u2128\u2128\u212C\u212D\u212F\u217F\u2183\u3006\u3038\u303A" +
"\u3131\u4DB5\uA000\uA48C\uF900\uFFDC";
static final String NMSTRT_CATEGORIES = "LlLuLoLtNl";
static final String NMCHAR_INCLUDES =
"\u002D\u002E\u003A\u005F\u00B7\u0387\u212E";
static final String NMCHAR_EXCLUDE_RANGES =
"\u00AA\u00B5\u00BA\u00BA\u0132\u0133\u013F\u0140\u0149\u0149" +
"\u017F\u017F\u01C4\u01CC\u01F1\u01F3\u01F6\u01F9\u0218\u0233" +
"\u02A9\u02B8\u02E0\u02EE\u0346\u034E\u0362\u037A\u03D7\u03D7" +
"\u03DB\u03DB\u03DD\u03DD\u03DF\u03DF\u03E1\u03E1\u0400\u0400" +
"\u040D\u040D\u0450\u0450\u045D\u045D\u0488\u048F\u04EC\u04ED" +
"\u0587\u0587\u0653\u0655\u06B8\u06B9\u06BF\u06BF\u06CF\u06CF" +
"\u06FA\u07B0\u0950\u0950\u0AD0\u0AD0\u0D82\u0DF3\u0E2F\u0E2F" +
"\u0EAF\u0EAF\u0EDC\u0F00\u0F6A\u0F6A\u0F96\u0F96\u0FAE\u0FB0" +
"\u0FB8\u0FB8\u0FBA\u1059\u1101\u1101\u1104\u1104\u1108\u1108" +
"\u110A\u110A\u110D\u110D\u1113\u113B\u113D\u113D\u113F\u113F" +
"\u1141\u114B\u114D\u114D\u114F\u114F\u1151\u1153\u1156\u1158" +
"\u1162\u1162\u1164\u1164\u1166\u1166\u1168\u1168\u116A\u116C" +
"\u116F\u1171\u1174\u1174\u1176\u119D\u119F\u11A2\u11A9\u11AA" +
"\u11AC\u11AD\u11B0\u11B6\u11B9\u11B9\u11BB\u11BB\u11C3\u11EA" +
"\u11EC\u11EF\u11F1\u11F8\u1200\u18A9\u207F\u207F\u20DD\u20E0" +
"\u20E2\u2124\u2128\u2128\u212C\u212D\u212F\u217F\u2183\u2183" +
"\u3006\u3006\u3038\u303A\u3131\u4DB5\uA000\uA48C\uF900\uFFDC";
static final String NMCHAR_CATEGORIES = "LlLuLoLtNlMcMeMnLmNd";
// end of generated code
private static final CharClass ESC_S = new Complement(ESC_s);
private static final CharClass ESC_i = makeCharClass(NMSTRT_CATEGORIES,
NMSTRT_INCLUDES,
NMSTRT_EXCLUDE_RANGES);
private static final CharClass ESC_I = new Complement(ESC_i);
private static final CharClass ESC_c = makeCharClass(NMCHAR_CATEGORIES,
NMCHAR_INCLUDES,
NMCHAR_EXCLUDE_RANGES);
private static final CharClass ESC_C = new Complement(ESC_c);
private static final char EOS = '\0';
private JDK15RegexTranslator(CharSequence regExp) {
this.regExp = regExp;
this.length = regExp.length();
advance();
}
/**
* Translates a regular expression in the syntax of XML Schemas Part 2 into a regular
* expression in the syntax of <code>java.util.regex.Pattern</code>. The translation
* assumes that the string to be matched against the regex uses surrogate pairs correctly.
* If the string comes from XML content, a conforming XML parser will automatically
* check this; if the string comes from elsewhere, it may be necessary to check
* surrogate usage before matching.
*
* @param regexp a String containing a regular expression in the syntax of XML Schemas Part 2
* @param xpath a boolean indicating whether the XPath 2.0 F+O extensions to the schema
* regex syntax are permitted
* @throws RegexSyntaxException if <code>regexp</code> is not a regular expression in the
* syntax of XML Schemas Part 2, or XPath 2.0, as appropriate
* @see java.util.regex.Pattern
* @see <a href="http://www.w3.org/TR/xmlschema-2/#regexs">XML Schema Part 2</a>
*/
public static String translate(CharSequence regexp, boolean xpath, boolean ignoreWhitespace, boolean caseBlind)
throws RegexSyntaxException {
//System.err.println("Input regex: " + regexp);
JDK15RegexTranslator tr = new JDK15RegexTranslator(regexp);
tr.isXPath = xpath;
tr.ignoreWhitespace = ignoreWhitespace;
tr.caseBlind = caseBlind;
tr.translateTop();
//System.err.println("Output regex: " + tr.result.toString());
return tr.result.toString();
}
private void advance() {
if (pos < length) {
curChar = regExp.charAt(pos++);
if (ignoreWhitespace && !inCharClassExpr) {
while (Whitespace.isWhitespace(curChar)) {
advance();
}
}
} else {
pos++;
curChar = EOS;
eos = true;
}
}
private int absorbSurrogatePair() throws RegexSyntaxException {
if (XMLChar.isSurrogate(curChar)) {
if (!XMLChar.isHighSurrogate(curChar))
throw makeException("invalid surrogate pair");
char c1 = curChar;
advance();
if (!XMLChar.isLowSurrogate(curChar))
throw makeException("invalid surrogate pair");
return XMLChar.supplemental(c1, curChar);
} else {
return curChar;
}
}
private void recede() {
// The caller must ensure we don't fall off the start of the expression
if (eos) {
curChar = regExp.charAt(length - 1);
pos = length;
eos = false;
} else {
curChar = regExp.charAt(--pos);
}
if (ignoreWhitespace && !inCharClassExpr) {
while (Whitespace.isWhitespace(curChar)) {
recede();
}
}
}
private void translateTop() throws RegexSyntaxException {
translateRegExp();
if (!eos)
throw makeException("expected end of string");
}
private void translateRegExp() throws RegexSyntaxException {
translateBranch();
while (curChar == '|') {
copyCurChar();
translateBranch();
}
}
private void translateBranch() throws RegexSyntaxException {
while (translateAtom())
translateQuantifier();
}
private void translateQuantifier() throws RegexSyntaxException {
switch (curChar) {
case '*':
case '?':
case '+':
copyCurChar();
break;
case '{':
copyCurChar();
translateQuantity();
expect('}');
copyCurChar();
break;
default:
return;
}
if (curChar == '?' && isXPath) {
copyCurChar();
}
}
private void translateQuantity() throws RegexSyntaxException {
String lower = parseQuantExact().toString();
int lowerValue = -1;
try {
lowerValue = Integer.parseInt(lower);
result.append(lower);
} catch (NumberFormatException e) {
// JDK 1.4 cannot handle ranges bigger than this
result.append("" + Integer.MAX_VALUE);
}
if (curChar == ',') {
copyCurChar();
if (curChar != '}') {
String upper = parseQuantExact().toString();
try {
int upperValue = Integer.parseInt(upper);
result.append(upper);
if (lowerValue < 0 || upperValue < lowerValue)
throw makeException("invalid range in quantifier");
} catch (NumberFormatException e) {
result.append("" + Integer.MAX_VALUE);
if (lowerValue < 0 && new BigDecimal(lower).compareTo(new BigDecimal(upper)) > 0)
throw makeException("invalid range in quantifier");
}
}
}
}
private CharSequence parseQuantExact() throws RegexSyntaxException {
FastStringBuffer buf = new FastStringBuffer(10);
do {
if ("0123456789".indexOf(curChar) < 0)
throw makeException("expected digit in quantifier");
buf.append(curChar);
advance();
} while (curChar != ',' && curChar != '}');
return buf;
}
private void copyCurChar() {
result.append(curChar);
advance();
}
static final int NONE = -1;
static final int SOME = 0;
static final int ALL = 1;
static final String SURROGATES1_CLASS = "[\uD800-\uDBFF]";
static final String SURROGATES2_CLASS = "[\uDC00-\uDFFF]";
static final String NOT_ALLOWED_CLASS = "[\u0000&&[^\u0000]]";
static final class Range implements Comparable {
private final int min;
private final int max;
Range(int min, int max) {
this.min = min;
this.max = max;
}
int getMin() {
return min;
}
int getMax() {
return max;
}
public int compareTo(Object o) {
Range other = (Range) o;
if (this.min < other.min)
return -1;
if (this.min > other.min)
return 1;
if (this.max > other.max)
return -1;
if (this.max < other.max)
return 1;
return 0;
}
}
static abstract class CharClass {
protected CharClass() {
}
abstract void output(FastStringBuffer buf);
abstract void outputComplement(FastStringBuffer buf);
int getSingleChar() {
return -1;
}
}
static abstract class SimpleCharClass extends CharClass {
SimpleCharClass() {
}
void output(FastStringBuffer buf) {
buf.append('[');
inClassOutput(buf);
buf.append(']');
}
void outputComplement(FastStringBuffer buf) {
buf.append("[^");
inClassOutput(buf);
buf.append(']');
}
abstract void inClassOutput(FastStringBuffer buf);
}
static class SingleChar extends SimpleCharClass {
private final int c;
SingleChar(int c) {
this.c = c;
}
int getSingleChar() {
return c;
}
void output(FastStringBuffer buf) {
inClassOutput(buf);
}
void inClassOutput(FastStringBuffer buf) {
if (isJavaMetaChar(c)) {
buf.append('\\');
buf.append((char) c);
} else {
switch (c) {
case '\r':
buf.append("\\r");
break;
case '\n':
buf.append("\\n");
break;
case '\t':
buf.append("\\t");
break;
case ' ':
buf.append("\\x20");
break;
default:
buf.appendWideChar(c);
}
}
return;
}
}
static class Empty extends SimpleCharClass {
private static final Empty instance = new Empty();
private Empty() {
}
static Empty getInstance() {
return instance;
}
void inClassOutput(FastStringBuffer buf) {
throw new RuntimeException("BMP output botch");
}
}
static class CharRange extends SimpleCharClass {
private final int lower;
private final int upper;
CharRange(int lower, int upper) {
this.lower = lower;
this.upper = upper;
}
void inClassOutput(FastStringBuffer buf) {
if (isJavaMetaChar(lower)) {
buf.append('\\');
}
buf.appendWideChar(lower);
buf.append('-');
if (isJavaMetaChar(upper)) {
buf.append('\\');
}
buf.appendWideChar(upper);
}
}
static class Property extends SimpleCharClass {
private final String name;
Property(String name) {
this.name = name;
}
void inClassOutput(FastStringBuffer buf) {
buf.append("\\p{");
buf.append(name);
buf.append('}');
}
void outputComplement(FastStringBuffer buf) {
buf.append("\\P{");
buf.append(name);
buf.append('}');
}
}
static class Subtraction extends CharClass {
private final CharClass cc1;
private final CharClass cc2;
Subtraction(CharClass cc1, CharClass cc2) {
// min corresponds to intersection
// complement corresponds to negation
this.cc1 = cc1;
this.cc2 = cc2;
}
void output(FastStringBuffer buf) {
buf.append('[');
cc1.output(buf);
buf.append("&&");
cc2.outputComplement(buf);
buf.append(']');
}
void outputComplement(FastStringBuffer buf) {
buf.append('[');
cc1.outputComplement(buf);
cc2.output(buf);
buf.append(']');
}
}
static class Union extends CharClass {
private final List members;
Union(CharClass[] v) {
this(toList(v));
}
private static List toList(CharClass[] v) {
List members = new ArrayList(5);
for (int i = 0; i < v.length; i++)
members.add(v[i]);
return members;
}
Union(List members) {
this.members = members;
}
void output(FastStringBuffer buf) {
buf.append('[');
for (int i = 0, len = members.size(); i < len; i++) {
CharClass cc = (CharClass) members.get(i);
cc.output(buf);
}
buf.append(']');
}
void outputComplement(FastStringBuffer buf) {
boolean first = true;
int len = members.size();
for (int i = 0; i < len; i++) {
CharClass cc = (CharClass) members.get(i);
if (cc instanceof SimpleCharClass) {
if (first) {
buf.append("[^");
first = false;
}
((SimpleCharClass) cc).inClassOutput(buf);
}
}
for (int i = 0; i < len; i++) {
CharClass cc = (CharClass) members.get(i);
if (!(cc instanceof SimpleCharClass)) {
if (first) {
buf.append('[');
first = false;
} else {
buf.append("&&");
}
cc.outputComplement(buf);
}
}
if (first == true) {
// empty union, so the complement is everything
buf.append("[\u0001-");
buf.appendWideChar(NONBMP_MAX);
buf.append("]");
} else {
buf.append(']');
}
}
}
static class BackReference extends CharClass {
private final int i;
BackReference(int i) {
this.i = i;
}
void output(FastStringBuffer buf) {
inClassOutput(buf);
}
void outputComplement(FastStringBuffer buf) {
inClassOutput(buf);
}
void inClassOutput(FastStringBuffer buf) {
buf.append("\\" + i);
}
}
static class Complement extends CharClass {
private final CharClass cc;
Complement(CharClass cc) {
this.cc = cc;
}
void output(FastStringBuffer buf) {
cc.outputComplement(buf);
}
void outputComplement(FastStringBuffer buf) {
cc.output(buf);
}
}
private boolean translateAtom() throws RegexSyntaxException {
switch (curChar) {
case EOS:
if (!eos)
break;
// else fall through
case '?':
case '*':
case '+':
case ')':
case '{':
case '}':
case '|':
case ']':
return false;
case '(':
copyCurChar();
int thisCapture = ++currentCapture;
translateRegExp();
expect(')');
captures.add(thisCapture);
copyCurChar();
return true;
case '\\':
advance();
parseEsc().output(result);
return true;
case '[':
inCharClassExpr = true;
advance();
parseCharClassExpr().output(result);
return true;
case '.':
if (isXPath) {
// under XPath, "." has the same meaning as in JDK 1.5
break;
} else {
// under XMLSchema, "." means anything except \n or \r, which is different from the XPath/JDK rule
DOT_SCHEMA.output(result);
advance();
return true;
}
case '$':
case '^':
if (isXPath) {
copyCurChar();
return true;
}
result.append('\\');
break;
default:
if (caseBlind) {
int thisChar = absorbSurrogatePair();
int[] variants = CaseVariants.getCaseVariants(thisChar);
if (variants.length > 0) {
CharClass[] chars = new CharClass[variants.length+1];
chars[0] = new SingleChar(thisChar);
for (int i=0; i<variants.length; i++) {
chars[i+1] = new SingleChar(variants[i]);
}
Union union = new Union(chars);
union.output(result);
advance();
return true;
}
// else fall through
}
// else fall through
}
copyCurChar();
return true;
}
private static CharClass makeCharClass(String categories, String includes, String excludeRanges) {
List includeList = new ArrayList(5);
for (int i = 0, len = categories.length(); i < len; i += 2)
includeList.add(new Property(categories.substring(i, i + 2)));
for (int i = 0, len = includes.length(); i < len; i++) {
int j = i + 1;
for (; j < len && includes.charAt(j) - includes.charAt(i) == j - i; j++)
;
--j;
if (i == j - 1)
--j;
if (i == j)
includeList.add(new SingleChar(includes.charAt(i)));
else
includeList.add(new CharRange(includes.charAt(i), includes.charAt(j)));
i = j;
}
List excludeList = new ArrayList(5);
for (int i = 0, len = excludeRanges.length(); i < len; i += 2) {
char min = excludeRanges.charAt(i);
char max = excludeRanges.charAt(i + 1);
if (min == max)
excludeList.add(new SingleChar(min));
else if (min == max - 1) {
excludeList.add(new SingleChar(min));
excludeList.add(new SingleChar(max));
} else
excludeList.add(new CharRange(min, max));
}
return new Subtraction(new Union(includeList), new Union(excludeList));
}
private CharClass parseEsc() throws RegexSyntaxException {
switch (curChar) {
case 'n':
advance();
return new SingleChar('\n');
case 'r':
advance();
return new SingleChar('\r');
case 't':
advance();
return new SingleChar('\t');
case '\\':
case '|':
case '.':
case '-':
case '^':
case '?':
case '*':
case '+':
case '(':
case ')':
case '{':
case '}':
case '[':
case ']':
break;
case 's':
advance();
return ESC_s;
case 'S':
advance();
return ESC_S;
case 'i':
advance();
return ESC_i;
case 'I':
advance();
return ESC_I;
case 'c':
advance();
return ESC_c;
case 'C':
advance();
return ESC_C;
case 'd':
advance();
return ESC_d;
case 'D':
advance();
return ESC_D;
case 'w':
advance();
return ESC_w;
case 'W':
advance();
return ESC_W;
case 'p':
advance();
return parseProp();
case 'P':
advance();
return new Complement(parseProp());
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
if (isXPath) {
char c = curChar;
int c0 = (c - '0');
advance();
int c1 = "0123456789".indexOf(curChar);
if (c1 >= 0) {
// limit a back-reference to two digits, but only allow two if there is such a capture
int n = c0 * 10 + c1;
advance();
if (captures.contains(n)) {
// treat it as a two-digit back-reference
return new BackReference(n);
} else {
recede();
}
}
return new BackReference(c0);
} else {
throw makeException("digit not allowed after \\");
}
case '$':
if (isXPath) {
break;
}
// otherwise fall through
default:
throw makeException("invalid escape sequence");
}
CharClass tem = new SingleChar(curChar);
advance();
return tem;
}
private CharClass parseProp() throws RegexSyntaxException {
expect('{');
int start = pos;
for (; ;) {
advance();
if (curChar == '}')
break;
if (!isAsciiAlnum(curChar) && curChar != '-')
expect('}');
}
String propertyName = regExp.subSequence(start, pos - 1).toString();
advance();
switch (propertyName.length()) {
case 0:
throw makeException("empty property name");
case 2:
int sci = subCategories.indexOf(propertyName);
if (sci < 0 || sci % 2 == 1)
throw makeException("unknown category");
return getSubCategoryCharClass(sci / 2);
case 1:
int ci = categories.indexOf(propertyName.charAt(0));
if (ci < 0)
throw makeException("unknown category", propertyName);
return getCategoryCharClass(ci);
default:
if (!propertyName.startsWith("Is"))
break;
String blockName = propertyName.substring(2);
for (int i = 0; i < specialBlockNames.length; i++)
if (blockName.equals(specialBlockNames[i]))
return specialBlockCharClasses[i];
if (!isBlock(blockName))
throw makeException("invalid block name", blockName);
return new Property("In" + blockName);
}
throw makeException("invalid property name", propertyName);
}
private static boolean isBlock(String name) {
for (int i = 0; i < blockNames.length; i++)
if (name.equals(blockNames[i]))
return true;
return false;
}
private static boolean isAsciiAlnum(char c) {
if ('a' <= c && c <= 'z')
return true;
if ('A' <= c && c <= 'Z')
return true;
if ('0' <= c && c <= '9')
return true;
return false;
}
private void expect(char c) throws RegexSyntaxException {
if (curChar != c)
throw makeException("expected", new String(new char[]{c}));
}
private CharClass parseCharClassExpr() throws RegexSyntaxException {
boolean compl;
if (curChar == '^') {
advance();
compl = true;
} else {
compl = false;
}
List members = new ArrayList(10);
boolean first = true;
do {
CharClass lower = parseCharClassEscOrXmlChar(first);
first = false;
members.add(lower);
if (curChar == '-') {
advance();
if (curChar == ']') { // MHK: [+-] is reallowed by Schema Oct 2004 2nd edition
break;
}
if (curChar == '[') {
break;
}
CharClass upper = parseCharClassEscOrXmlChar(first);
if (lower.getSingleChar() < 0 || upper.getSingleChar() < 0)
throw makeException("multi_range");
if (lower.getSingleChar() > upper.getSingleChar())
throw makeException("invalid range (start > end)");
members.set(members.size() - 1,
new CharRange(lower.getSingleChar(), upper.getSingleChar()));
if (caseBlind) {
// Special-case A-Z and a-z
if (lower.getSingleChar() == 'a' && upper.getSingleChar() == 'z') {
members.add(new CharRange('A', 'Z'));
for (int v=0; v<CaseVariants.ROMAN_VARIANTS.length; v++) {
members.add(new SingleChar(CaseVariants.ROMAN_VARIANTS[v]));
}
} else if (lower.getSingleChar() == 'A' && upper.getSingleChar() == 'Z') {
members.add(new CharRange('a', 'z'));
for (int v=0; v<CaseVariants.ROMAN_VARIANTS.length; v++) {
members.add(new SingleChar(CaseVariants.ROMAN_VARIANTS[v]));
}
} else {
for (int k = lower.getSingleChar(); k <= upper.getSingleChar(); k++) {
int[] variants = CaseVariants.getCaseVariants(k);
for (int v=0; v<variants.length; v++) {
members.add(new SingleChar(variants[v]));
}
}
}
}
if (curChar == '-') {
advance();
expect('[');
break;
}
} else {
int[] variants = CaseVariants.getCaseVariants(lower.getSingleChar());
for (int v=0; v<variants.length; v++) {
members.add(new SingleChar(variants[v]));
}
}
} while (curChar != ']');
CharClass result;
if (members.size() == 1)
result = (CharClass) members.get(0);
else
result = new Union(members);
if (compl)
result = new Complement(result);
if (curChar == '[') {
advance();
result = new Subtraction(result, parseCharClassExpr());
expect(']');
}
inCharClassExpr = false;
advance();
return result;
}
private CharClass parseCharClassEscOrXmlChar(boolean first) throws RegexSyntaxException {
switch (curChar) {
case EOS:
if (eos)
expect(']');
break;
case '\\':
advance();
return parseEsc();
case '[':
case ']':
throw makeException("character must be escaped", new String(new char[]{curChar}));
case '-':
if (!first) {
throw makeException("character must be escaped", new String(new char[]{curChar}));
}
break;
}
CharClass tem = new SingleChar(absorbSurrogatePair());
advance();
return tem;
}
private RegexSyntaxException makeException(String key) {
return new RegexSyntaxException("Error at character " + (pos - 1) +
" in regular expression " + Err.wrap(regExp, Err.VALUE) + ": " + key);
}
private RegexSyntaxException makeException(String key, String arg) {
return new RegexSyntaxException("Error at character " + (pos - 1) +
" in regular expression " + Err.wrap(regExp, Err.VALUE) + ": " + key +
" (" + arg + ')');
}
private static boolean isJavaMetaChar(int c) {
switch (c) {
case '\\':
case '^':
case '?':
case '*':
case '+':
case '(':
case ')':
case '{':
case '}':
case '|':
case '[':
case ']':
case '-':
case '&':
case '$':
case '.':
return true;
}
return false;
}
private static synchronized CharClass getCategoryCharClass(int ci) {
if (categoryCharClasses[ci] == null)
categoryCharClasses[ci] = computeCategoryCharClass(categories.charAt(ci));
return categoryCharClasses[ci];
}
private static synchronized CharClass getSubCategoryCharClass(int sci) {
if (subCategoryCharClasses[sci] == null)
subCategoryCharClasses[sci] = computeSubCategoryCharClass(subCategories.substring(sci * 2, (sci + 1) * 2));
return subCategoryCharClasses[sci];
}
private static final char UNICODE_3_1_ADD_Lu = '\u03F4'; // added in 3.1
private static final char UNICODE_3_1_ADD_Ll = '\u03F5'; // added in 3.1
// 3 characters changed from No to Nl between 3.0 and 3.1
private static final char UNICODE_3_1_CHANGE_No_to_Nl_MIN = '\u16EE';
private static final char UNICODE_3_1_CHANGE_No_to_Nl_MAX = '\u16F0';
private static final String CATEGORY_Pi = "\u00AB\u2018\u201B\u201C\u201F\u2039"; // Java doesn't know about category Pi
private static final String CATEGORY_Pf = "\u00BB\u2019\u201D\u203A"; // Java doesn't know about category Pf
private static CharClass computeCategoryCharClass(char code) {
List classes = new ArrayList(5);
classes.add(new Property(new String(new char[]{code})));
for (int ci = CATEGORY_NAMES.indexOf(code); ci >= 0; ci = CATEGORY_NAMES.indexOf(code, ci + 1)) {
int[] addRanges = CATEGORY_RANGES[ci / 2];
for (int i = 0; i < addRanges.length; i += 2)
classes.add(new CharRange(addRanges[i], addRanges[i + 1]));
}
if (code == 'P')
classes.add(makeCharClass(CATEGORY_Pi + CATEGORY_Pf));
if (code == 'L') {
classes.add(new SingleChar(UNICODE_3_1_ADD_Ll));
classes.add(new SingleChar(UNICODE_3_1_ADD_Lu));
}
if (code == 'C') {
// JDK 1.4 leaves Cn out of C?
classes.add(new Subtraction(new Property("Cn"),
new Union(new CharClass[]{new SingleChar(UNICODE_3_1_ADD_Lu),
new SingleChar(UNICODE_3_1_ADD_Ll)})));
List assignedRanges = new ArrayList(5);
for (int i = 0; i < CATEGORY_RANGES.length; i++)
for (int j = 0; j < CATEGORY_RANGES[i].length; j += 2)
assignedRanges.add(new CharRange(CATEGORY_RANGES[i][j],
CATEGORY_RANGES[i][j + 1]));
classes.add(new Subtraction(new CharRange(NONBMP_MIN, NONBMP_MAX),
new Union(assignedRanges)));
}
if (classes.size() == 1)
return (CharClass) classes.get(0);
return new Union(classes);
}
private static CharClass computeSubCategoryCharClass(String name) {
CharClass base = new Property(name);
int sci = CATEGORY_NAMES.indexOf(name);
if (sci < 0) {
if (name.equals("Cn")) {
// Unassigned
List assignedRanges = new ArrayList(5);
assignedRanges.add(new SingleChar(UNICODE_3_1_ADD_Lu));
assignedRanges.add(new SingleChar(UNICODE_3_1_ADD_Ll));
for (int i = 0; i < CATEGORY_RANGES.length; i++)
for (int j = 0; j < CATEGORY_RANGES[i].length; j += 2)
assignedRanges.add(new CharRange(CATEGORY_RANGES[i][j],
CATEGORY_RANGES[i][j + 1]));
return new Subtraction(new Union(new CharClass[]{base, new CharRange(NONBMP_MIN, NONBMP_MAX)}),
new Union(assignedRanges));
}
if (name.equals("Pi"))
return makeCharClass(CATEGORY_Pi);
if (name.equals("Pf"))
return makeCharClass(CATEGORY_Pf);
return base;
}
List classes = new ArrayList(5);
classes.add(base);
int[] addRanges = CATEGORY_RANGES[sci / 2];
for (int i = 0; i < addRanges.length; i += 2)
classes.add(new CharRange(addRanges[i], addRanges[i + 1]));
if (name.equals("Lu"))
classes.add(new SingleChar(UNICODE_3_1_ADD_Lu));
else if (name.equals("Ll"))
classes.add(new SingleChar(UNICODE_3_1_ADD_Ll));
else if (name.equals("Nl"))
classes.add(new CharRange(UNICODE_3_1_CHANGE_No_to_Nl_MIN, UNICODE_3_1_CHANGE_No_to_Nl_MAX));
else if (name.equals("No"))
return new Subtraction(new Union(classes),
new CharRange(UNICODE_3_1_CHANGE_No_to_Nl_MIN,
UNICODE_3_1_CHANGE_No_to_Nl_MAX));
return new Union(classes);
}
private static CharClass makeCharClass(String members) {
List list = new ArrayList(5);
for (int i = 0, len = members.length(); i < len; i++)
list.add(new SingleChar(members.charAt(i)));
return new Union(list);
}
public static void main(String[] args) throws RegexSyntaxException {
String s = translate(args[0], args[1].equals("xpath"), false, true);
for (int i = 0, len = s.length(); i < len; i++) {
char c = s.charAt(i);
if (c >= 0x20 && c <= 0x7e)
System.err.print(c);
else {
System.err.print("\\u");
for (int shift = 12; shift >= 0; shift -= 4)
System.err.print("0123456789ABCDEF".charAt((c >> shift) & 0xF));
}
}
System.err.println();
}
//}
}
//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (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.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License.
//
// The Original Code is: all this file except changes marked.
//
// The Initial Developer of the Original Code is James Clark
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved.
//
// Contributor(s): Michael Kay
//
The table below shows all metrics for JDK15RegexTranslator.java.
| Metric | Value | Description | |
|---|---|---|---|
| BLOCKS | 141.00 | Number of blocks | |
| BLOCK_COMMENT | 0.00 | Number of block comment lines | |
| COMMENTS | 98.00 | Comment lines | |
| COMMENT_DENSITY | 0.09 | Comment density | |
| COMPARISONS | 114.00 | Number of comparison operators | |
| CYCLOMATIC | 288.00 | Cyclomatic complexity | |
| DECL_COMMENTS | 32.00 | Comments in declarations | |
| DOC_COMMENT | 38.00 | Number of javadoc comment lines | |
| ELOC | 1067.00 | Effective lines of code | |
| EXEC_COMMENTS | 31.00 | Comments in executable code | |
| EXITS | 72.00 | Procedure exits | |
| FUNCTIONS | 69.00 | Number of function declarations | |
| HALSTEAD_DIFFICULTY | 98.76 | Halstead difficulty | |
| HALSTEAD_EFFORT | 0.00 | Halstead effort | |
| INTERFACE_COMPLEXITY | 213.00 | Interface complexity | |
| JAVA0001 | 0.00 | JAVA0001 Package name does not contain only lower case letters | |
| JAVA0002 | 0.00 | JAVA0002 Package name does not begin with a top level domain name or country code | |
| JAVA0003 | 0.00 | JAVA0003 Minimize use of on-demand (.*) imports | |
| JAVA0004 | 0.00 | JAVA0004 Unnecessary import from java.lang | |
| JAVA0005 | 1.00 | JAVA0005 Imports not in specified order | |
| JAVA0006 | 0.00 | JAVA0006 Empty finally block | |
| JAVA0007 | 0.00 | JAVA0007 Should not declare public field | |
| JAVA0008 | 0.00 | JAVA0008 Empty catch block | |
| JAVA0009 | 0.00 | JAVA0009 Protected member in final class | |
| JAVA0010 | 0.00 | JAVA0010 Non-instantiable class does not contain a non-private static member | |
| JAVA0011 | 0.00 | JAVA0011 Abstract class does not contain an abstract method | |
| JAVA0012 | 0.00 | JAVA0012 Non-constructor method with same name as declaring class | |
| JAVA0013 | 0.00 | JAVA0013 Non-blank final field is not static | |
| JAVA0014 | 0.00 | JAVA0014 Class with only static members has non-private constructor | |
| JAVA0015 | 0.00 | JAVA0015 Package class contains public nested type | |
| JAVA0016 | 0.00 | JAVA0016 Abstract class contains public constructor | |
| JAVA0017 | 0.00 | JAVA0017 Class name does not have required form | |
| JAVA0018 | 0.00 | JAVA0018 Method name does not have required form | |
| JAVA0019 | 0.00 | JAVA0019 Interface name does not have required form | |
| JAVA0020 | 0.00 | JAVA0020 Field name does not have required form | |
| JAVA0021 | 0.00 | JAVA0021 Interface method name does not have required form | |
| JAVA0022 | 0.00 | JAVA0022 Static final field name does not have required form | |
| JAVA0023 | 0.00 | JAVA0023 Empty finalize method | |
| JAVA0024 | 0.00 | JAVA0024 Empty class | |
| JAVA0025 | 0.00 | JAVA0025 Method override is empty | |
| JAVA0026 | 0.00 | JAVA0026 Finalize method with parameters | |
| JAVA0029 | 0.00 | JAVA0029 Private method not used | |
| JAVA0030 | 0.00 | JAVA0030 Private field not used | |
| JAVA0031 | 6.00 | JAVA0031 Case statement not properly closed | |
| JAVA0032 | 2.00 | JAVA0032 Switch statement missing default | |
| JAVA0033 | 0.00 | JAVA0033 default: not last case in switch statement | |
| JAVA0034 | 45.00 | JAVA0034 Missing braces in if statement | |
| JAVA0035 | 13.00 | JAVA0035 Missing braces in for statement | |
| JAVA0036 | 1.00 | JAVA0036 Missing braces in while statement | |
| JAVA0038 | 0.00 | JAVA0038 Non-case label in switch statement | |
| JAVA0039 | 0.00 | JAVA0039 Break statement with label | |
| JAVA0040 | 1.00 | JAVA0040 Switch statement contains N cases (maximum: M) | |
| JAVA0041 | 0.00 | JAVA0041 Nested synchronized block | |
| JAVA0042 | 0.00 | JAVA0042 Empty synchronized statement | |
| JAVA0043 | 0.00 | JAVA0043 Inner class does not use outer class | |
| JAVA0044 | 0.00 | JAVA0044 Serializable class with no instance variables | |
| JAVA0045 | 0.00 | JAVA0045 Serializable class with only transient fields | |
| JAVA0046 | 0.00 | JAVA0046 Name of class not derived from Exception ends with 'Exception' | |
| JAVA0047 | 0.00 | JAVA0047 Serializable class derives from invalid base class | |
| JAVA0048 | 0.00 | JAVA0048 Name of class derived from Exception does not end with 'Exception' | |
| JAVA0049 | 3.00 | JAVA0049 Nested block at depth N (maximum: M) | |
| JAVA0050 | 0.00 | JAVA0050 Class derives from java.lang.Error | |
| JAVA0051 | 0.00 | JAVA0051 Class derives from java.lang.RuntimeException | |
| JAVA0052 | 0.00 | JAVA0052 Class derives from java.lang.Throwable | |
| JAVA0053 | 0.00 | JAVA0053 Unused label | |
| JAVA0054 | 0.00 | JAVA0054 Inheritance depth N exceeds maximum M | |
| JAVA0055 | 0.00 | JAVA0055 Class should be interface | |
| JAVA0056 | 0.00 | JAVA0056 Unnecessary abstract modifier for interface or annotation | |
| JAVA0057 | 1.00 | JAVA0057 Unnecessary default constructor | |
| JAVA0058 | 0.00 | JAVA0058 Constructor calls super() | |
| JAVA0059 | 0.00 | JAVA0059 Method override only calls super() | |
| JAVA0061 | 0.00 | JAVA0061 Inaccessible member in anonymous class | |
| JAVA0062 | 0.00 | JAVA0062 Public class missing public member or protected constructor | |
| JAVA0063 | 0.00 | JAVA0063 Identifier name should not contain '$' | |
| JAVA0064 | 7.00 | JAVA0064 N variations of identifier name (maximum: M) | |
| JAVA0065 | 0.00 | JAVA0065 Unnecessary final modifier for method in final class | |
| JAVA0066 | 0.00 | JAVA0066 Unnecessary modifier for interface nested type | |
| JAVA0067 | 0.00 | JAVA0067 Array descriptor on identifier name | |
| JAVA0068 | 2.00 | JAVA0068 Modifiers not declared in recommended order | |
| JAVA0071 | 0.00 | JAVA0071 Strings compared with == | |
| JAVA0073 | 0.00 | JAVA0073 Integer division in floating-point context | |
| JAVA0074 | 0.00 | JAVA0074 Use of Object.notify() | |
| JAVA0075 | 0.00 | JAVA0075 Method parameter hides field | |
| JAVA0076 | 3.00 | JAVA0076 Use of magic number | |
| JAVA0077 | 0.00 | JAVA0077 Private field not used in declaring class | |
| JAVA0078 | 0.00 | JAVA0078 Floating point values compared with == | |
| JAVA0079 | 0.00 | JAVA0079 Use of instance to reference static member | |
| JAVA0080 | 0.00 | JAVA0080 Import declaration not used | |
| JAVA0081 | 1.00 | JAVA0081 Boolean literal in comparison | |
| JAVA0082 | 0.00 | JAVA0082 Unnecessary widening cast | |
| JAVA0083 | 0.00 | JAVA0083 Unnecessary instanceof test | |
| JAVA0084 | 0.00 | JAVA0084 Should use compound assignment operator | |
| JAVA0085 | 0.00 | JAVA0085 Use of sun.* class | |
| JAVA0087 | 0.00 | JAVA0087 Use of Thread.sleep() | |
| JAVA0089 | 0.00 | JAVA0089 Use of restricted package | |
| JAVA0092 | 0.00 | JAVA0092 Use of restricted type | |
| JAVA0093 | 0.00 | JAVA0093 Redundant assignment | |
| JAVA0094 | 0.00 | JAVA0094 Field hides a superclass field | |
| JAVA0095 | 0.00 | JAVA0095 Uninitialized private field | |
| JAVA0096 | 0.00 | JAVA0096 Field in nested class hides outer field | |
| JAVA0098 | 0.00 | JAVA0098 Minimize use of implicit field initializers | |
| JAVA0100 | 1.00 | JAVA0100 Class contains N non-final fields (maximum: M) | |
| JAVA0101 | 0.00 | JAVA0101 Unnecessary modifier for field in interface | |
| JAVA0102 | 0.00 | JAVA0102 Last statement in finalize() not super.finalize() | |
| JAVA0103 | 0.00 | JAVA0103 Explicit call to finalize() | |
| JAVA0104 | 0.00 | JAVA0104 finalize() only calls super.finalize() | |
| JAVA0105 | 0.00 | JAVA0105 Duplicate import declaration | |
| JAVA0106 | 0.00 | JAVA0106 Unnecessary import from current package | |
| JAVA0108 | 2.00 | JAVA0108 Incorrect javadoc: no @param tag for 'parameter' | |
| JAVA0109 | 0.00 | JAVA0109 Incorrect javadoc: no parameter 'parameter' | |
| JAVA0110 | 1.00 | JAVA0110 Incorrect javadoc: no @return tag | |
| JAVA0111 | 0.00 | JAVA0111 Incorrect javadoc: @return tag for void method | |
| JAVA0112 | 0.00 | JAVA0112 Incorrect javadoc: no exception 'exception' in throws | |
| JAVA0113 | 1.00 | JAVA0113 Incorrect javadoc: no @author tag | |
| JAVA0114 | 1.00 | JAVA0114 Incorrect javadoc: no @version tag | |
| JAVA0115 | 0.00 | JAVA0115 Incorrect javadoc: no @throws or @exception tag for 'exception' | |
| JAVA0116 | 0.00 | JAVA0116 Missing javadoc: field 'field' | |
| JAVA0117 | 2.00 | JAVA0117 Missing javadoc: method 'method' | |
| JAVA0118 | 0.00 | JAVA0118 Missing javadoc: type 'type' | |
| JAVA0119 | 1.00 | JAVA0119 Control variable changed within body of for loop | |
| JAVA0123 | 2.00 | JAVA0123 Use all three components of for loop | |
| JAVA0125 | 0.00 | JAVA0125 Continue statement with label | |
| JAVA0126 | 0.00 | JAVA0126 Method declares unchecked exception in throws | |
| JAVA0128 | 0.00 | JAVA0128 Public constructor in non-public class | |
| JAVA0130 | 1.00 | JAVA0130 Non-static method does not use instance fields | |
| JAVA0131 | 0.00 | JAVA0131 Compatible method does not override base | |
| JAVA0132 | 0.00 | JAVA0132 Method overload with compatible signature | |
| JAVA0133 | 0.00 | JAVA0133 Non-synchronized method overrides synchronized method | |
| JAVA0135 | 0.00 | JAVA0135 Only one of Object.equals and Object.hashCode defined: missing 'method' | |
| JAVA0136 | 1.00 | JAVA0136 N methods defined in class (maximum: M) | |
| JAVA0137 | 0.00 | JAVA0137 Non-abstract class missing constructor | |
| JAVA0138 | 0.00 | JAVA0138 N parameters defined for method (maximum: M) | |
| JAVA0139 | 1.00 | JAVA0139 Definition of main other than public static void main(java.lang.String[]) | |
| JAVA0141 | 0.00 | JAVA0141 Unnecessary modifier for method in interface | |
| JAVA0143 | 2.00 | JAVA0143 Synchronized method | |
| JAVA0144 | 0.00 | JAVA0144 Line exceeds maximum M characters | |
| JAVA0145 | 0.00 | JAVA0145 Tab character used in source file | |
| JAVA0150 | 0.00 | JAVA0150 java.lang.Error (or subclass) thrown | |
| JAVA0153 | 0.00 | JAVA0153 Inefficient conversion of integer to string | |
| JAVA0159 | 0.00 | JAVA0159 Inefficient conversion of string to integer | |
| JAVA0160 | 0.00 | JAVA0160 Method does not throw specified exception | |
| JAVA0161 | 0.00 | JAVA0161 Conditional wait() not in loop | |
| JAVA0163 | 1.00 | JAVA0163 Empty statement | |
| JAVA0165 | 0.00 | JAVA0165 Conflicting return statement in finally block | |
| JAVA0166 | 0.00 | JAVA0166 Generic exception caught | |
| JAVA0167 | 0.00 | JAVA0167 ThreadDeath not rethrown | |
| JAVA0169 | 0.00 | JAVA0169 Unnecessary catch block: exception 'exception' | |
| JAVA0170 | 0.00 | JAVA0170 Caught exception not derived from java.lang.Exception | |
| JAVA0171 | 0.00 | JAVA0171 Unused local variable | |
| JAVA0173 | 0.00 | JAVA0173 Unused method parameter | |
| JAVA0174 | 0.00 | JAVA0174 Assigned local variable never used | |
| JAVA0175 | 0.00 | JAVA0175 Successive assignment to variable | |
| JAVA0176 | 0.00 | JAVA0176 Local variable name does not have required form | |
| JAVA0177 | 2.00 | JAVA0177 Variable declaration missing initializer | |
| JAVA0179 | 1.00 | JAVA0179 Local variable hides visible field | |
| JAVA0233 | 0.00 | JAVA0233 Definition of serialVersionUID other than 'private static final long serialVersionUID' | |
| JAVA0234 | 0.00 | JAVA0234 Class is Serializable but does not define serialVersionUID | |
| JAVA0235 | 0.00 | JAVA0235 Class defines serialVersionUID but does not implement Serializable | |
| JAVA0236 | 0.00 | JAVA0236 Attempt to clone an object which does not implement Cloneable | |
| JAVA0237 | 0.00 | JAVA0237 Class implements Cloneable but does not have public clone method | |
| JAVA0238 | 0.00 | JAVA0238 Clone method does not call super.clone() | |
| JAVA0239 | 0.00 | JAVA0239 Class declares 'readObject' or 'writeObject' but does not implement Serializable | |
| JAVA0240 | 0.00 | JAVA0240 Serializable class which declares readObject or writeObject but not both | |
| JAVA0241 | 0.00 | JAVA0241 'readObject' or 'writeObject' should be declared private in Serializable class | |
| JAVA0242 | 0.00 | JAVA0242 Transient field in non-Serializable class | |
| JAVA0243 | 0.00 | JAVA0243 'readResolve' or 'writeReplace' should be declared private or protected | |
| JAVA0244 | 0.00 | JAVA0244 Field or method name in subclass differs only by case from inherited field or method | |
| JAVA0245 | 0.00 | JAVA0245 JUnit TestCase with non-trivial constructor | |
| JAVA0246 | 0.00 | JAVA0246 JUnit assertXXX statement missing message parameter | |
| JAVA0247 | 0.00 | JAVA0247 JUnit 'setUp()' and 'tearDown()' should call super method | |
| JAVA0248 | 0.00 | JAVA0248 JUnit method 'setUp' or 'tearDown' with incorrect signature | |
| JAVA0249 | 0.00 | JAVA0249 JUnit TestCase 'suite()' should be declared static | |
| JAVA0250 | 0.00 | JAVA0250 JUnit TestCase declares testXXX method with incorrect signature | |
| JAVA0251 | 0.00 | JAVA0251 Use '%n' for line breaks in printf/format for platform independence | |
| JAVA0252 | 0.00 | JAVA0252 'enum' is a Java 1.5 reserved word | |
| JAVA0253 | 0.00 | JAVA0253 Not all enum constants consumed in switch statement | |
| JAVA0254 | 0.00 | JAVA0254 Use enhanced for loop construct instead of Iterator | |
| JAVA0255 | 0.00 | JAVA0255 Result of method invocation not used | |
| JAVA0256 | 1.00 | JAVA0256 Assignment of external collection/array to field | |
| JAVA0257 | 0.00 | JAVA0257 Use of 'Constant Interface' anti-pattern | |
| JAVA0258 | 0.00 | JAVA0258 Implement Iterable for foreach compatibility | |
| JAVA0259 | 0.00 | JAVA0259 Return of collection/array field | |
| JAVA0260 | 0.00 | JAVA0260 Use 'enum' instead of Enumerated Type pattern | |
| JAVA0261 | 0.00 | JAVA0261 Use specialized Enum collection types | |
| JAVA0262 | 40.00 | JAVA0262 Use of char in integer context | |
| JAVA0263 | 0.00 | JAVA0263 Long literal ends with 'l' instead of 'L' | |
| JAVA0264 | 0.00 | JAVA0264 Integer math in long context - check for overflow | |
| JAVA0265 | 0.00 | JAVA0265 Use of Throwable.printStackTrace() | |
| JAVA0266 | 0.00 | JAVA0266 Use of System.out | |
| JAVA0267 | 4.00 | JAVA0267 Use of System.err | |
| JAVA0269 | 0.00 | JAVA0269 Contents of StringBuffer never used | |
| JAVA0270 | 6.00 | JAVA0270 Use Java 5.0 enhanced for loop construct to iterate over all elements in an array | |
| JAVA0271 | 0.00 | JAVA0271 Minimize use of on-demand (.*) static imports | |
| JAVA0272 | 0.00 | JAVA0272 Thread.run() called | |
| JAVA0273 | 0.00 | JAVA0273 Non-final derivative of Thread calls start() in constructor | |
| JAVA0274 | 0.00 | JAVA0274 Serializable class has a synchronized readObject() | |
| JAVA0275 | 0.00 | JAVA0275 Serializable class has a synchronized writeObject() and no other synchronized methods | |
| JAVA0276 | 0.00 | JAVA0276 Unnecessary use of String constructor | |
| JAVA0277 | 0.00 | JAVA0277 Iterator.next() implementation does not throw NoSuchElementException | |
| JAVA0278 | 0.00 | JAVA0278 Unnecessary use of Boolean constructor | |
| JAVA0279 | 0.00 | JAVA0279 Serialization method readObject or readObjectNoData calls an overridable method | |
| JAVA0280 | 0.00 | JAVA0280 IllegalMonitorStateException caught | |
| JAVA0281 | 0.00 | JAVA0281 Iterator.next() not called in loop | |
| JAVA0282 | 0.00 | JAVA0282 Call to Iterator.next() in loop which does not test Iterator.hasNext() | |
| JAVA0283 | 0.00 | JAVA0283 Control variable not updated in loop body | |
| JAVA0284 | 0.00 | JAVA0284 Explicit garbage collection | |
| JAVA0285 | 0.00 | JAVA0285 Dereference of potentially null variable | |
| JAVA0286 | 0.00 | JAVA0286 Dereference of null variable | |
| JAVA0287 | 0.00 | JAVA0287 Unnecessary null check | |
| JAVA0288 | 0.00 | JAVA0288 Inconsistent null check | |
| LINES | 1452.00 | Number of lines in the source file | |
| LINE_COMMENT | 60.00 | Number of line comments | |
| LOC | 1223.00 | Lines of code | |
| LOGICAL_LINES | 503.00 | Number of statements | |
| LOOPS | 33.00 | Number of loops | |
| NEST_DEPTH | 7.00 | Maximum nesting depth | |
| OPERANDS | 2326.00 | Number of operands | |
| OPERATORS | 4369.00 | Number of operators | |
| PARAMS | 56.00 | Number of formal parameter declarations | |
| PROGRAM_LENGTH | 6695.00 | Halstead program length | |
| PROGRAM_VOCAB | 856.00 | Halstead program vocabulary | |
| PROGRAM_VOLUME | 0.00 | Halstead program volume | |
| RETURNS | 157.00 | Number of return points from functions | |
| SIZE | 50361.00 | Size of the file in bytes | |
| UNIQUE_OPERANDS | 789.00 | Number of unique operands | |
| UNIQUE_OPERATORS | 67.00 | Number of unique operators | |
| WHITESPACE | 131.00 | Number of whitespace lines | |