argList gets addNote() static method

- output any notes in the usage

applications/utilities/surface/surfaceTransformPoints/surfaceTransformPoints.C

@@ -23,8 +23,8 @@ License
     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 
 Description
-    Transform (scale/rotate) a surface. Like transformPoints but then for
-    surfaces.
+    Transform (scale/rotate) a surface.
+    Like transformPoints but for surfaces.
 
     The rollPitchYaw option takes three angles (degrees):
     - roll (rotation about x) followed by
@@ -54,16 +54,47 @@ using namespace Foam::constant::mathematical;
 
 int main(int argc, char *argv[])
 {
+    argList::addNote
+    (
+        "Transform (scale/rotate) a surface. "
+        "Like transformPoints but for surfaces."
+    );
     argList::noParallel();
     argList::validArgs.clear();
-
     argList::validArgs.append("surface file");
     argList::validArgs.append("output surface file");
-    argList::addOption("translate", "vector");
-    argList::addOption("rotate", "(vector vector)");
-    argList::addOption("scale", "vector");
-    argList::addOption("rollPitchYaw", "(roll pitch yaw)");
-    argList::addOption("yawPitchRoll", "(yaw pitch roll)");
+    argList::addOption
+    (
+        "translate",
+        "vector",
+        "translate by the specified <vector> - eg, '(1 0 0)'"
+    );
+    argList::addOption
+    (
+        "rotate",
+        "(vectorA vectorB)",
+        "transform in terms of a rotation between <vectorA> and <vectorB> "
+        "- eg, '( (1 0 0) (0 0 1) )'"
+    );
+    argList::addOption
+    (
+        "scale",
+        "vector",
+        "scale by the specified amount - eg, '(0.001 0.001 0.001)' for a "
+        "uniform [mm] to [m] scaling"
+    );
+    argList::addOption
+    (
+        "rollPitchYaw",
+        "vector",
+        "transform in terms of '( roll pitch yaw )' in degrees"
+    );
+    argList::addOption
+    (
+        "yawPitchRoll",
+        "vector",
+        "transform in terms of '( yaw pitch roll )' in degrees"
+    );
     argList args(argc, argv);
 
     fileName surfFileName(args.additionalArgs()[0]);

src/OpenFOAM/global/argList/argList.C

@@ -43,6 +43,7 @@ Foam::SLList<Foam::string>    Foam::argList::validArgs;
 Foam::HashTable<Foam::string> Foam::argList::validOptions;
 Foam::HashTable<Foam::string> Foam::argList::validParOptions;
 Foam::HashTable<Foam::string> Foam::argList::optionUsage;
+Foam::SLList<Foam::string>    Foam::argList::notes;
 Foam::string::size_type Foam::argList::usageMin = 20;
 Foam::string::size_type Foam::argList::usageMax = 80;
 
@@ -108,6 +109,15 @@ void Foam::argList::addUsage
 }
 
 
+void Foam::argList::addNote(const string& note)
+{
+    if (!note.empty())
+    {
+        notes.append(note);
+    }
+}
+
+
 void Foam::argList::removeOption(const word& opt)
 {
     validOptions.erase(opt);
@@ -765,7 +775,7 @@ void Foam::argList::printUsage() const
 
         HashTable<string>::const_iterator iter = validOptions.find(optionName);
         Info<< "  -" << optionName;
-        label len = optionName.size() + 3;  // include leading "  -"
+        label len = optionName.size() + 3;  // length includes leading '  -'
 
         if (iter().size())
         {
@@ -815,6 +825,22 @@ void Foam::argList::printUsage() const
         "print the usage"
     );
 
+
+    // output notes directly - no automatic text wrapping
+    if (!notes.empty())
+    {
+        Info<< nl;
+        for
+        (
+            SLList<string>::const_iterator iter = notes.begin();
+            iter != notes.end();
+            ++iter
+        )
+        {
+            Info<< iter().c_str() << nl;
+        }
+    }
+
     Info<< nl
         <<"Using OpenFOAM-" << Foam::FOAMversion
         <<" (build: " << Foam::FOAMbuild << ") - see www.OpenFOAM.org"

src/OpenFOAM/global/argList/argList.H

@@ -153,7 +153,10 @@ public:
         //- Short usage information for validOptions
         static HashTable<string> optionUsage;
 
-        //- Min offset for displaying usage (default: 16)
+        //- Additional notes for usage
+        static SLList<string> notes;
+
+        //- Min offset for displaying usage (default: 20)
         static string::size_type usageMin;
 
         //- Max screen width for displaying usage (default: 80)
@@ -287,6 +290,10 @@ public:
                 const string& usage
             );
 
+            //- Add extra notes for the usage information
+            //  This string is used "as-is" without additional formatting
+            static void addNote(const string&);
+
             //- Remove option from validOptions and from optionUsage
             static void removeOption(const word& opt);