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Posted to commits@commons.apache.org by da...@apache.org on 2018/02/20 04:41:34 UTC

commons-imaging git commit: Parse header values in XBM files as C integer literals, allowing hexadecimal and octal values too.

Repository: commons-imaging
Updated Branches:
  refs/heads/master 8cf2b1280 -> fa201df06


Parse header values in XBM files as C integer literals, allowing
hexadecimal and octal values too.

Other cleanups like making methods static and better exception
messages.

Patch by: me


Project: http://git-wip-us.apache.org/repos/asf/commons-imaging/repo
Commit: http://git-wip-us.apache.org/repos/asf/commons-imaging/commit/fa201df0
Tree: http://git-wip-us.apache.org/repos/asf/commons-imaging/tree/fa201df0
Diff: http://git-wip-us.apache.org/repos/asf/commons-imaging/diff/fa201df0

Branch: refs/heads/master
Commit: fa201df06edefd329610d210d67caba6802b1211
Parents: 8cf2b12
Author: Damjan Jovanovic <da...@gmail.com>
Authored: Tue Feb 20 06:39:57 2018 +0200
Committer: Damjan Jovanovic <da...@gmail.com>
Committed: Tue Feb 20 06:39:57 2018 +0200

----------------------------------------------------------------------
 .../imaging/formats/xbm/XbmImageParser.java     | 30 +++++++++++++++-----
 1 file changed, 23 insertions(+), 7 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/commons-imaging/blob/fa201df0/src/main/java/org/apache/commons/imaging/formats/xbm/XbmImageParser.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/imaging/formats/xbm/XbmImageParser.java b/src/main/java/org/apache/commons/imaging/formats/xbm/XbmImageParser.java
index 01c8809..39700b2 100644
--- a/src/main/java/org/apache/commons/imaging/formats/xbm/XbmImageParser.java
+++ b/src/main/java/org/apache/commons/imaging/formats/xbm/XbmImageParser.java
@@ -150,13 +150,13 @@ public class XbmImageParser extends ImageParser {
             for (final Entry<String, String> entry : defines.entrySet()) {
                 final String name = entry.getKey();
                 if (name.endsWith("_width")) {
-                    width = Integer.parseInt(entry.getValue());
+                    width = parseCIntegerLiteral(entry.getValue());
                 } else if (name.endsWith("_height")) {
-                    height = Integer.parseInt(entry.getValue());
+                    height = parseCIntegerLiteral(entry.getValue());
                 } else if (name.endsWith("_x_hot")) {
-                    xHot = Integer.parseInt(entry.getValue());
+                    xHot = parseCIntegerLiteral(entry.getValue());
                 } else if (name.endsWith("_y_hot")) {
-                    yHot = Integer.parseInt(entry.getValue());
+                    yHot = parseCIntegerLiteral(entry.getValue());
                 }
              }
             if (width == -1) {
@@ -173,6 +173,22 @@ public class XbmImageParser extends ImageParser {
             return xbmParseResult;
         }
     }
+    
+    private static int parseCIntegerLiteral(String value) {
+        if (value.startsWith("0")) {
+            if (value.length() >= 2) {
+                if (value.charAt(1) == 'x' || value.charAt(1) == 'X') {
+                    return Integer.parseInt(value.substring(2), 16);
+                } else {
+                    return Integer.parseInt(value.substring(1), 8);
+                }
+            } else {
+                return 0;
+            }
+        } else {
+            return Integer.parseInt(value);
+        }
+    }
 
     private BufferedImage readXbmImage(final XbmHeader xbmHeader, final BasicCParser cParser)
             throws ImageReadException, IOException {
@@ -186,7 +202,7 @@ public class XbmImageParser extends ImageParser {
         if (token == null) {
             throw new ImageReadException(
                     "Parsing XBM file failed, no 'unsigned' "
-                            + "or 'char' token");
+                            + "or 'char' or 'short' token");
         }
         if ("unsigned".equals(token)) {
             token = cParser.nextToken();
@@ -302,7 +318,7 @@ public class XbmImageParser extends ImageParser {
         return readXbmImage(result.xbmHeader, result.cParser);
     }
 
-    private String randomName() {
+    private static String randomName() {
         final UUID uuid = UUID.randomUUID();
         final StringBuilder stringBuilder = new StringBuilder("a");
         long bits = uuid.getMostSignificantBits();
@@ -317,7 +333,7 @@ public class XbmImageParser extends ImageParser {
         return stringBuilder.toString();
     }
 
-    private String toPrettyHex(final int value) {
+    private static String toPrettyHex(final int value) {
         final String s = Integer.toHexString(0xff & value);
         if (s.length() == 2) {
             return "0x" + s;