runtime(termdebug): allow to use decimal signs

closes: #16011

Co-authored-by: Christian Brabandt <cb@256bit.org>
Signed-off-by: Ella Moss <ella.moss@utah.edu>
Signed-off-by: Christian Brabandt <cb@256bit.org>

runtime/doc/terminal.txt

@@ -1,4 +1,4 @@
-*terminal.txt*	For Vim version 9.1.  Last change: 2024 Oct 27
+*terminal.txt*	For Vim version 9.1.  Last change: 2024 Nov 09
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -1683,13 +1683,17 @@ Change default signs ~
 Termdebug uses the hex number of the breakpoint ID in the signcolumn to
 represent breakpoints. If it is greater than "0xFF", then it will be displayed
 as "F+", due to we really only have two screen cells for the sign.
+You may also use decimal breakpoint signs instead, in which case IDs greater
+than 99 will be displayed as "9+".
 
-If you want to customize the breakpoint signs: >
+If you want to customize the breakpoint signs to show `>>` in the signcolumn: >
 	let g:termdebug_config['sign'] = '>>'
+If you would like to use decimal (base 10) breakpoint signs: >
+	let g:termdebug_config['sign_decimal'] = 1
 If there is no g:terminal_config yet you can use: >
 	let g:termdebug_config = {'sign': '>>'}
-
-After this, breakpoints will be displayed as `>>` in the signcolumn.
+Likewise, to enable decimal signs: >
+	let g:termdebug_config = {'sign_decimal': 1}
 
 
 Window toolbar ~

runtime/pack/dist/opt/termdebug/plugin/termdebug.vim

@@ -1912,6 +1912,11 @@ def CreateBreakpoint(id: number, subid: number, enabled: string)
     var label = ''
     if exists('g:termdebug_config') && has_key(g:termdebug_config, 'sign')
       label = g:termdebug_config['sign']
+    elseif exists('g:termdebug_config') && has_key(g:termdebug_config, 'sign_decimal')
+      label = printf('%02d', id)
+      if id > 99
+        label = '9+'
+      endif
     else
       label = printf('%02X', id)
       if id > 255