Fixed the help text for raw commands like "expr"

to include -- in sample command lines.  Now LLDB
prints

  expression [-f <format>] -- <expr>

instead of

  expression [-f <format>] <expr>

and also adds a new example line:

  expression <expr>

to show that in the absense of arguments the --
can be ommitted.

llvm-svn: 147540

1 files changed, 15 insertions, 0 deletions

diff --git a/lldb/source/Interpreter/Options.cpp b/lldb/source/Interpreter/Options.cpp
index dbe65798be8..09b17a8eb25 100644
--- a/lldb/source/Interpreter/Options.cpp
+++ b/lldb/source/Interpreter/Options.cpp
@@ -555,9 +555,24 @@ Options::GenerateOptionUsage
                 }
             }
         }
+        
         if (arguments_str.GetSize() > 0)
+        {
+            if (cmd->WantsRawCommandString())
+                strm.Printf(" --");
+            
             strm.Printf (" %s", arguments_str.GetData());
+        }
     }
+    
+    if (cmd->WantsRawCommandString() &&
+        arguments_str.GetSize() > 0)
+    {        
+        strm.PutChar('\n');
+        strm.Indent(name);
+        strm.Printf(" %s", arguments_str.GetData());
+    }
+    
     strm.Printf ("\n\n");
 
     // Now print out all the detailed information about the various options:  long form, short form and help text: