From e0f42bcaba2cdf82dc36f7b835fbf2a9ce6c3e73 Mon Sep 17 00:00:00 2001
From: Jim Derry <balthisar@gmail.com>
Date: Sat, 31 Oct 2015 17:33:43 +0800
Subject: [PATCH] Prototype (undocument) -help-option argument added to console
 app.

---
 console/tidy.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/console/tidy.c b/console/tidy.c
index 430df55..9d3fc1e 100644
--- a/console/tidy.c
+++ b/console/tidy.c
@@ -878,6 +878,26 @@ static void optionhelp( TidyDoc tdoc )
     ForEachSortedOption( tdoc, printOption );
 }
 
+static void optiondescribe( TidyDoc tdoc, char *tag )
+{
+    printf( "\nNote this help function is UNDOCUMENTED, and still needs work.\n" );
+
+    printf( "\n`%s`\n\n", tag );
+
+    TidyOptionId topt = tidyOptGetIdForName( tag );
+    
+    char *result = NULL;
+    if (topt < N_TIDY_OPTIONS)
+    {
+        result = (char*)tidyOptGetDoc( tdoc, tidyGetOption( tdoc, topt ) );
+    } else
+    {
+        result = "Unknown option.";
+    }
+    
+    printf( "%s\n\n", result );
+}
+
 static
 void printOptionValues( TidyDoc ARG_UNUSED(tdoc), TidyOption topt,
                         OptionDesc *d )
@@ -1096,6 +1116,19 @@ int main( int argc, char** argv )
                 tidyRelease( tdoc );
                 return 0; /* success */
             }
+            else if ( strcasecmp(arg, "help-option") == 0 )
+            {
+                if ( argc >= 3)
+                {
+                    optiondescribe( tdoc, argv[2] );
+                }
+                else
+                {
+                    printf( "%s", "Tidy option name must be specified.\n");
+                }
+                tidyRelease( tdoc );
+                return 0; /* success */
+            }
             else if ( strcasecmp(arg, "xml-config") == 0 )
             {
                 XMLoptionhelp( tdoc );