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Diffstat (limited to 'src/proguard/util/ClassNameParser.java')
| -rw-r--r-- | src/proguard/util/ClassNameParser.java | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/src/proguard/util/ClassNameParser.java b/src/proguard/util/ClassNameParser.java deleted file mode 100644 index a756eba..0000000 --- a/src/proguard/util/ClassNameParser.java +++ /dev/null @@ -1,215 +0,0 @@ -/* - * ProGuard -- shrinking, optimization, obfuscation, and preverification - * of Java bytecode. - * - * Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu) - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -package proguard.util; - -import proguard.classfile.ClassConstants; - -/** - * This StringParser can create StringMatcher instances for regular expressions - * matching internal class names (or descriptors containing class names). - * The regular expressions can contain the following wildcards: - * '%' for a single internal primitive type character (V, Z, B, C, S, I, F, - * J, or D), - * '?' for a single regular class name character, - * '*' for any number of regular class name characters, - * '**' for any number of regular class name characters or package separator - * characters ('/'), - * 'L***;' for a single internal type (class name or primitive type, - * array or non-array), and - * 'L///;' for any number of internal types (class names and primitive - * types). - * - * @author Eric Lafortune - */ -public class ClassNameParser implements StringParser -{ - private static final char[] INTERNAL_PRIMITIVE_TYPES = new char[] - { - ClassConstants.TYPE_VOID, - ClassConstants.TYPE_BOOLEAN, - ClassConstants.TYPE_BYTE, - ClassConstants.TYPE_CHAR, - ClassConstants.TYPE_SHORT, - ClassConstants.TYPE_INT, - ClassConstants.TYPE_LONG, - ClassConstants.TYPE_FLOAT, - ClassConstants.TYPE_DOUBLE, - }; - - - // Implementations for StringParser. - - public StringMatcher parse(String regularExpression) - { - int index; - StringMatcher nextMatcher = new EmptyStringMatcher(); - - // Look for wildcards. - for (index = 0; index < regularExpression.length(); index++) - { - // Is there an 'L///;' wildcard? - if (regularExpression.regionMatches(index, "L///;", 0, 5)) - { - SettableMatcher settableMatcher = new SettableMatcher(); - - // Create a matcher, recursively, for the remainder of the - // string, optionally preceded by any type. - nextMatcher = - new OrMatcher(parse(regularExpression.substring(index + 5)), - createAnyTypeMatcher(settableMatcher)); - - settableMatcher.setMatcher(nextMatcher); - - break; - } - - // Is there an 'L***;' wildcard? - if (regularExpression.regionMatches(index, "L***;", 0, 5)) - { - // Create a matcher for the wildcard and, recursively, for the - // remainder of the string. - nextMatcher = - createAnyTypeMatcher(parse(regularExpression.substring(index + 5))); - break; - } - - // Is there a '**' wildcard? - if (regularExpression.regionMatches(index, "**", 0, 2)) - { - // Create a matcher for the wildcard and, recursively, for the - // remainder of the string. - nextMatcher = - new VariableStringMatcher(null, - new char[] { ClassConstants.TYPE_CLASS_END }, - 0, - Integer.MAX_VALUE, - parse(regularExpression.substring(index + 2))); - break; - } - - // Is there a '*' wildcard? - else if (regularExpression.charAt(index) == '*') - { - // Create a matcher for the wildcard and, recursively, for the - // remainder of the string. - nextMatcher = - new VariableStringMatcher(null, - new char[] { ClassConstants.TYPE_CLASS_END, ClassConstants.PACKAGE_SEPARATOR }, - 0, - Integer.MAX_VALUE, - parse(regularExpression.substring(index + 1))); - break; - } - - // Is there a '?' wildcard? - else if (regularExpression.charAt(index) == '?') - { - // Create a matcher for the wildcard and, recursively, for the - // remainder of the string. - nextMatcher = - new VariableStringMatcher(null, - new char[] { ClassConstants.TYPE_CLASS_END, ClassConstants.PACKAGE_SEPARATOR }, - 1, - 1, - parse(regularExpression.substring(index + 1))); - break; - } - - // Is there a '%' wildcard? - else if (regularExpression.charAt(index) == '%') - { - // Create a matcher for the wildcard and, recursively, for the - // remainder of the string. - nextMatcher = - new VariableStringMatcher(INTERNAL_PRIMITIVE_TYPES, - null, - 1, - 1, - parse(regularExpression.substring(index + 1))); - break; - } - } - - // Return a matcher for the fixed first part of the regular expression, - // if any, and the remainder. - return index != 0 ? - (StringMatcher)new FixedStringMatcher(regularExpression.substring(0, index), nextMatcher) : - (StringMatcher)nextMatcher; - } - - - // Small utility methods. - - /** - * Creates a StringMatcher that matches any type (class or primitive type, - * array or non-array) and then the given matcher. - */ - private VariableStringMatcher createAnyTypeMatcher(StringMatcher nextMatcher) - { - return new VariableStringMatcher(new char[] { ClassConstants.TYPE_ARRAY }, - null, - 0, - 255, - new OrMatcher( - new VariableStringMatcher(INTERNAL_PRIMITIVE_TYPES, - null, - 1, - 1, - nextMatcher), - new VariableStringMatcher(new char[] { ClassConstants.TYPE_CLASS_START }, - null, - 1, - 1, - new VariableStringMatcher(null, - new char[] { ClassConstants.TYPE_CLASS_END }, - 0, - Integer.MAX_VALUE, - new VariableStringMatcher(new char[] { ClassConstants.TYPE_CLASS_END }, - null, - 1, - 1, - nextMatcher))))); - } - - - /** - * A main method for testing class name matching. - */ - public static void main(String[] args) - { - try - { - System.out.println("Regular expression ["+args[0]+"]"); - ClassNameParser parser = new ClassNameParser(); - StringMatcher matcher = parser.parse(args[0]); - for (int index = 1; index < args.length; index++) - { - String string = args[index]; - System.out.print("String ["+string+"]"); - System.out.println(" -> match = "+matcher.matches(args[index])); - } - } - catch (Exception ex) - { - ex.printStackTrace(); - } - } -} |