X-Git-Url: https://git.saurik.com/apple/icu.git/blobdiff_plain/51004dcb01e06fef634b61be77ed73dd61cb6db9..a01113dcd0f39d5da295ef82785beff9ed86fe38:/icuSources/i18n/umsg.cpp

diff --git a/icuSources/i18n/umsg.cpp b/icuSources/i18n/umsg.cpp
index 8143932e..9a5344e0 100644
--- a/icuSources/i18n/umsg.cpp
+++ b/icuSources/i18n/umsg.cpp
@@ -1,3 +1,5 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
 /*
 *******************************************************************************
 *
@@ -6,7 +8,7 @@
 *
 *******************************************************************************
 *   file name:  umsg.cpp
-*   encoding:   US-ASCII
+*   encoding:   UTF-8
 *   tab size:   8 (not used)
 *   indentation:4
 *
@@ -319,7 +321,7 @@ umsg_applyPattern(UMessageFormat *fmt,
     if(status ==NULL||U_FAILURE(*status)){
         return ;
     }
-    if(fmt==NULL||pattern==NULL||patternLength<-1){
+    if(fmt==NULL || (pattern==NULL && patternLength!=0) || patternLength<-1) {
         *status=U_ILLEGAL_ARGUMENT_ERROR;
         return ;
     }
@@ -327,10 +329,8 @@ umsg_applyPattern(UMessageFormat *fmt,
     if(parseError==NULL){
       parseError = &tErr;
     }
-    if(patternLength<-1){
-        patternLength=u_strlen(pattern);
-    }
 
+    // UnicodeString(pattern, -1) calls u_strlen().
     ((MessageFormat*)fmt)->applyPattern(UnicodeString(pattern,patternLength),*parseError,*status);  
 }
 
@@ -463,13 +463,11 @@ umsg_vformat(   const UMessageFormat *fmt,
 
         default:
             // Unknown/unsupported argument type.
-            U_ASSERT(FALSE);
-            *status=U_ILLEGAL_ARGUMENT_ERROR;
-            break;
+            UPRV_UNREACHABLE;
         }
     }
     UnicodeString resultStr;
-    FieldPosition fieldPosition(0);
+    FieldPosition fieldPosition(FieldPosition::DONT_CARE);
     
     /* format the message */
     ((const MessageFormat*)fmt)->format(args,count,resultStr,fieldPosition,*status);
@@ -592,13 +590,11 @@ umsg_vparse(const UMessageFormat *fmt,
             // support kObject.  When MessageFormat is changed to
             // understand MeasureFormats, modify this code to do the
             // right thing. [alan]
-            U_ASSERT(FALSE);
-            break;
+            UPRV_UNREACHABLE;
 
         // better not happen!
         case Formattable::kArray:
-            U_ASSERT(FALSE);
-            break;
+            UPRV_UNREACHABLE;
         }
     }