-" Change to ts=2 with Q2.
-map Q2 :se ts=2<CR>:<CR>
-" Change to ts=4 with Q4.
-map Q4 :se ts=4<CR>:<CR>
-" Change to ts=8 with Q8.
-map Q8 :se ts=8<CR>:<CR>
-" Change to ts=16 with Q6.
-map Q6 :se ts=16<CR>:<CR>
-" Change to ts=32 with Q3.
-map Q3 :se ts=32<CR>:<CR>
-" Toggle paste mode with Qp.
-map Qp :se paste!<CR>:<CR>
-" Swap case-sensitivity with Qc.
-map Qc :call Invert_Case()<CR>:<CR>
-" Change number mode with Qn.
-map Qn :se number!<CR>:<CR>
-" Expand or shrink window size with Q> and Q<. For use after toggling number.
-map Q> :exe 'se columns+=' . numberwidth<CR>:<CR>
-map Q< :exe 'se columns-=' . numberwidth<CR>:<CR>
-" Clear search pattern with Q/.
-map Q/ :let @/=""<CR>:<CR>
+" Function to create mappings with either a hardcoded \ or <Leader>.
+fun! Mapping(keysequence,mapping)
+ if version < "600"
+ exec "map \\" . a:keysequence . " " . a:mapping
+ else
+ exec "map <Leader>" . a:keysequence . " " . a:mapping
+ endif
+endfun
+
+" Use - and = to create underlines.
+call Mapping("-", "yyp:s/./-/g<RETURN>:let @/=''<RETURN>:<RETURN>")
+call Mapping("=", "yyp:s/./=/g<RETURN>:let @/=''<RETURN>:<RETURN>")
+
+" Change to ts=2 with \2.
+call Mapping("2", ":se ts=2<CR>:<CR>")
+" Change to ts=4 with \4.
+call Mapping("4", ":se ts=4<CR>:<CR>")
+" Change to ts=8 with \8.
+call Mapping("8", ":se ts=8<CR>:<CR>")
+" Change to ts=16 with \6.
+call Mapping("6", ":se ts=16<CR>:<CR>")
+" Change to ts=32 with \3.
+call Mapping("3", ":se ts=32<CR>:<CR>")
+" Toggle paste mode with \p.
+call Mapping("p", ":se paste!<CR>:<CR>")
+" Swap case-sensitivity with \c.
+call Mapping("c", ":call Invert_Case()<CR>:<CR>")
+" Change number mode with \n.
+call Mapping("n", ":se number!<CR>:<CR>")
+" Expand or shrink window size with \> and \<. For use after toggling number.
+call Mapping(">", ":exe 'se columns+=' . numberwidth<CR>:<CR>")
+call Mapping("<", ":exe 'se columns-=' . numberwidth<CR>:<CR>")
+" Clear search pattern with \/.
+call Mapping("/", ":let @/=\"\"<CR>:<CR>")
+
+" Forget the Ex mode mapping.
+map Q <NOP>
+
+" Vim tip 99: What's the highlighting group under the cursor?
+call Mapping("h", ":echo \"hi<\" . synIDattr(synID(line(\".\"),col(\".\"),1),\"name\") . '> trans<' . synIDattr(synID(line(\".\"),col(\".\"),0),\"name\") . \"> lo<\" . synIDattr(synIDtrans(synID(line(\".\"),col(\".\"),1)),\"name\") . \">\"<CR>")