[seam-commits] Seam SVN: r7336 - in branches/Seam_2_0/src: test/unit/org/jboss/seam/test/unit and 1 other directory.

[seam-commits at lists.jboss.org]

Author: norman.richards at jboss.com
Date: 2008-02-01 19:33:16 -0500 (Fri, 01 Feb 2008)
New Revision: 7336

Modified:
   branches/Seam_2_0/src/main/org/jboss/seam/core/Interpolator.java
   branches/Seam_2_0/src/test/unit/org/jboss/seam/test/unit/InterpolatorTest.java
Log:
JBSEAM-2566

Modified: branches/Seam_2_0/src/main/org/jboss/seam/core/Interpolator.java
===================================================================
--- branches/Seam_2_0/src/main/org/jboss/seam/core/Interpolator.java	2008-02-02 00:31:44 UTC (rev 7335)
+++ branches/Seam_2_0/src/main/org/jboss/seam/core/Interpolator.java	2008-02-02 00:33:16 UTC (rev 7336)
@@ -32,12 +32,9 @@
 
     public static Interpolator instance()
     {
-        if ( Contexts.isApplicationContextActive() )
-        {
+        if (Contexts.isApplicationContextActive()) {
             return (Interpolator) Component.getInstance(Interpolator.class, ScopeType.APPLICATION);         
-        }
-        else
-        {
+        } else {
             return new Interpolator(); //for unit testing
         }
     }
@@ -51,18 +48,15 @@
      */
     public String interpolate(String string, Object... params) 
     {
-        if (params == null) 
-        {
+        if (params == null) {
             params = new Object[0];
         }
 
-        if ( params.length>10 ) 
-        {
+        if (params.length>10) {
             throw new IllegalArgumentException("more than 10 parameters");
         }
 
-        if (string.indexOf('#')>=0 || string.indexOf('{')>=0) 
-        {
+        if (string.indexOf('#')>=0 || string.indexOf('{')>=0) {
             string = interpolateExpressions(string, params);
         }
 
@@ -74,75 +68,63 @@
         StringTokenizer tokens = new StringTokenizer(string, "#{}", true);
         StringBuilder builder = new StringBuilder(string.length());
         try {
-            while ( tokens.hasMoreTokens() )
-            {
+            while (tokens.hasMoreTokens()) {
                 String tok = tokens.nextToken();
-                if ( "#".equals(tok) && tokens.hasMoreTokens() )
-                {
+
+                if ("#".equals(tok) && tokens.hasMoreTokens()) {
                     String nextTok = tokens.nextToken();
-                    if ( "{".equals(nextTok) )
-                    {
+
+                    while (nextTok.equals("#") && tokens.hasMoreTokens()) {
+                        builder.append(tok);
+                        nextTok = tokens.nextToken();
+                    }
+                    
+                    if ("{".equals(nextTok)) {
                         String expression = "#{" + tokens.nextToken() + "}";
-                        try
-                        {
+                        try {
                             Object value = Expressions.instance().createValueExpression(expression).getValue();
                             if (value!=null) builder.append(value);
-                        }
-                        catch (Exception e)
-                        {
+                        } catch (Exception e) {
                             log.warn("exception interpolating string: " + string, e);
                         }
-                        tokens.nextToken(); //the }
-                    }
-                    else 
-                    {
+                        tokens.nextToken(); // the trailing "}"
+
+                    } else if (nextTok.equals("#"))  {
+                        // could be trailing # 
+                        builder.append("#");
+
+                    } else {
                         int index;
-                        try
-                        {
-                            index = Integer.parseInt( nextTok.substring(0, 1) );
-                            if (index>=params.length) 
-                            {
+                        try {
+                            index = Integer.parseInt(nextTok.substring(0, 1));
+                            if (index>=params.length) {
                                 //log.warn("parameter index out of bounds: " + index + " in: " + string);
                                 builder.append("#").append(nextTok);
+                            } else {
+                                builder.append(params[index]).append(nextTok.substring(1));
                             }
-                            else
-                            {
-                                builder.append( params[index] ).append( nextTok.substring(1) );
-                            }
-                        }
-                        catch (NumberFormatException nfe)
-                        {
+                        } catch (NumberFormatException nfe) {
                             builder.append("#").append(nextTok);
                         }
                     }
-                } 
-                else if ("{".equals(tok)) 
-                {
+                } else if ("{".equals(tok)) {
                     StringBuilder expr = new StringBuilder();
 
                     expr.append(tok);
                     int level = 1;
 
-                    while (tokens.hasMoreTokens()) 
-                    {
+                    while (tokens.hasMoreTokens()) {
                         String nextTok = tokens.nextToken();
                         expr.append(nextTok);
 
-                        if (nextTok.equals("{")) 
-                        {
+                        if (nextTok.equals("{")) {
                             ++level;
-                        } 
-                        else if (nextTok.equals("}")) 
-                        {
-                            if (--level == 0) 
-                            {
-                                try 
-                                {
+                        } else if (nextTok.equals("}")) {
+                            if (--level == 0) {
+                                try {
                                     String value = new MessageFormat(expr.toString(), Locale.instance()).format(params);
                                     builder.append(value);
-                                } 
-                                catch (Exception e) 
-                                {
+                                } catch (Exception e) {
                                     // if it is a bad message, use the expression itself
                                     builder.append(expr);                             
                                 }
@@ -152,19 +134,17 @@
                         }
                     } 
 
-                    if (expr != null) 
-                    {
+                    if (expr != null) {
                         builder.append(expr);
                     }
-                } 
-                else 
-                {
+                } else {
                     builder.append(tok);
                 }
             }
         } catch (Exception e) {
             log.warn("exception interpolating string: " + string, e);
         }
+
         return builder.toString();
     }
 

Modified: branches/Seam_2_0/src/test/unit/org/jboss/seam/test/unit/InterpolatorTest.java
===================================================================
--- branches/Seam_2_0/src/test/unit/org/jboss/seam/test/unit/InterpolatorTest.java	2008-02-02 00:31:44 UTC (rev 7335)
+++ branches/Seam_2_0/src/test/unit/org/jboss/seam/test/unit/InterpolatorTest.java	2008-02-02 00:33:16 UTC (rev 7336)
@@ -27,6 +27,11 @@
         Assert.assertEquals("There are no files.", interpolator.interpolate(CHOICE_EXPR, 0));
         Assert.assertEquals("There is one file.", interpolator.interpolate(CHOICE_EXPR, 1));
         Assert.assertEquals("There are 2 files.", interpolator.interpolate(CHOICE_EXPR, 2));
+
+        // test sequences of multiple #
+        Assert.assertEquals("2", interpolator.interpolate("#0",2));
+        Assert.assertEquals("#2", interpolator.interpolate("##0",2));
+        Assert.assertEquals("##2", interpolator.interpolate("###0",2));
         
         Date date = new Date(0);