1 files changed, 145 insertions, 0 deletions
diff --git a/third_party/jformatstring/java/edu/umd/cs/findbugs/formatStringChecker/Flags.java b/third_party/jformatstring/java/edu/umd/cs/findbugs/formatStringChecker/Flags.java
new file mode 100644
index 0000000000..9ddfc21a77
--- /dev/null
+++ b/third_party/jformatstring/java/edu/umd/cs/findbugs/formatStringChecker/Flags.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+/* This file has been extensively modified from the original Sun implementation
+ * to provide for compile time checking of Format Strings.
+ * 
+ * These modifications were performed by Bill Pugh, this code is free software.
+ * 
+ */
+package edu.umd.cs.findbugs.formatStringChecker;
+
+import java.util.DuplicateFormatFlagsException;
+import java.util.UnknownFormatFlagsException;
+
+class Flags {
+	private int flags;
+
+	static final Flags NONE = new Flags(0); // ''
+
+	// duplicate declarations from Formattable.java
+	static final Flags LEFT_JUSTIFY = new Flags(1 << 0); // '-'
+	static final Flags UPPERCASE = new Flags(1 << 1); // '^'
+	static final Flags ALTERNATE = new Flags(1 << 2); // '#'
+
+	// numerics
+	static final Flags PLUS = new Flags(1 << 3); // '+'
+	static final Flags LEADING_SPACE = new Flags(1 << 4); // ' '
+	static final Flags ZERO_PAD = new Flags(1 << 5); // '0'
+	static final Flags GROUP = new Flags(1 << 6); // ','
+	static final Flags PARENTHESES = new Flags(1 << 7); // '('
+
+	// indexing
+	static final Flags PREVIOUS = new Flags(1 << 8); // '<'
+
+	private Flags(int f) {
+		flags = f;
+	}
+
+	public int valueOf() {
+		return flags;
+	}
+
+	public boolean contains(Flags f) {
+		return (flags & f.valueOf()) == f.valueOf();
+	}
+
+	public Flags dup() {
+		return new Flags(flags);
+	}
+
+	Flags add(Flags f) {
+		flags |= f.valueOf();
+		return this;
+	}
+
+	public Flags remove(Flags f) {
+		flags &= ~f.valueOf();
+		return this;
+	}
+
+	public static Flags parse(String s) {
+		char[] ca = s.toCharArray();
+		Flags f = new Flags(0);
+		for (int i = 0; i < ca.length; i++) {
+			Flags v = parse(ca[i]);
+			if (f.contains(v))
+				throw new DuplicateFormatFlagsException(v.toString());
+			f.add(v);
+		}
+		return f;
+	}
+
+	// parse those flags which may be provided by users
+	private static Flags parse(char c) {
+		switch (c) {
+		case '-':
+			return LEFT_JUSTIFY;
+		case '#':
+			return ALTERNATE;
+		case '+':
+			return PLUS;
+		case ' ':
+			return LEADING_SPACE;
+		case '0':
+			return ZERO_PAD;
+		case ',':
+			return GROUP;
+		case '(':
+			return PARENTHESES;
+		case '<':
+			return PREVIOUS;
+		default:
+			throw new UnknownFormatFlagsException(String.valueOf(c));
+		}
+	}
+
+	// Returns a string representation of the current <tt>Flags</tt>.
+	public static String toString(Flags f) {
+		return f.toString();
+	}
+
+	public String toString() {
+		StringBuilder sb = new StringBuilder();
+		if (contains(LEFT_JUSTIFY))
+			sb.append('-');
+		if (contains(UPPERCASE))
+			sb.append('^');
+		if (contains(ALTERNATE))
+			sb.append('#');
+		if (contains(PLUS))
+			sb.append('+');
+		if (contains(LEADING_SPACE))
+			sb.append(' ');
+		if (contains(ZERO_PAD))
+			sb.append('0');
+		if (contains(GROUP))
+			sb.append(',');
+		if (contains(PARENTHESES))
+			sb.append('(');
+		if (contains(PREVIOUS))
+			sb.append('<');
+		return sb.toString();
+	}
+}
+\ No newline at end of file