1 files changed, 131 insertions, 0 deletions
diff --git a/Master/texmf-dist/source/latex/pax/src/StringVisitor.java b/Master/texmf-dist/source/latex/pax/src/StringVisitor.java
new file mode 100644
index 00000000000..dcec104d9ad
--- /dev/null
+++ b/Master/texmf-dist/source/latex/pax/src/StringVisitor.java
@@ -0,0 +1,131 @@
+/* StringVisitor.java
+Copyright (C) 2006 Heiko Oberdiek
+
+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., 51 Franklin Street, Fifth Floor, Boston,
+MA 02110-1301  USA
+
+This file is part of PDFAnnotExtractor. See README.
+*/
+package pax;
+
+import java.io.*;
+import java.util.*;
+import org.pdfbox.cos.*;
+import org.pdfbox.exceptions.*;
+
+public class StringVisitor implements ICOSVisitor {
+
+    protected StringBuffer buf;
+    boolean nodelim;
+
+    public StringVisitor() {
+        buf = new StringBuffer();
+        nodelim = false;
+    }
+
+    public Object visitFromNull(COSNull obj) {
+        if (nodelim) {
+            buf.append(' ');
+        }
+        buf.append("null");
+        nodelim = true;
+        return buf;
+    }
+
+    public Object visitFromBoolean(COSBoolean obj) {
+        if (nodelim) {
+           buf.append(' ');
+        }
+        buf.append(obj.getValue());
+        nodelim = true;
+        return buf;
+    }
+
+    public Object visitFromInt(COSInteger obj) {
+        if (nodelim) {
+            buf.append(' ');
+        }
+        buf.append(obj.intValue());
+        nodelim = true;
+        return buf;
+    }
+
+    public Object visitFromFloat(COSFloat obj) {
+        if (nodelim) {
+            buf.append(' ');
+        }
+        String s = "" + obj.floatValue();
+        if (s.endsWith(".0")) {
+            buf.append(s.substring(0, s.length() - ".0".length()));
+        }
+        else {
+            buf.append(s);
+        }
+        nodelim = true;
+        return buf;
+    }
+
+    public Object visitFromName(COSName obj) {
+        ByteArrayOutputStream a = new ByteArrayOutputStream();
+        try {
+            obj.writePDF(a);
+        }
+        catch (IOException e) {}
+        buf.append(a.toString());
+        nodelim = true;
+        return buf;
+    }
+
+    public Object visitFromString(COSString obj) {
+        buf.append("\\<");
+        buf.append(obj.getHexString());
+        buf.append("\\>");
+        nodelim = false;
+        return buf;
+    }
+
+    public Object visitFromArray(COSArray obj) throws COSVisitorException {
+        buf.append('[');
+        nodelim = false;
+        for (int i = 0; i < obj.size(); i++) {
+            obj.getObject(i).accept(this);
+        }
+        buf.append(']');
+        nodelim = false;
+        return buf;
+    }
+
+    public Object visitFromDictionary(COSDictionary obj) throws COSVisitorException {
+        buf.append("<<");
+        nodelim = false;
+        Iterator iter = obj.keyList().iterator();
+        while (iter.hasNext()) {
+            COSName key = (COSName)iter.next();
+            COSBase value = obj.getDictionaryObject(key);
+            key.accept(this);
+            value.accept(this);
+        }
+        buf.append(">>");
+        nodelim = false;
+        return buf;
+    }
+
+    public Object visitFromStream(COSStream obj) throws COSVisitorException {
+        throw new COSVisitorException(new Exception("Unsupported stream object"));
+    }
+    public Object visitFromDocument(COSDocument obj) throws COSVisitorException {
+        throw new COSVisitorException(new Exception("Unsupported documetn object"));
+    }
+}