Add abbr attribute for flag, param, option and disp helpers

README.md

@@ -457,6 +457,7 @@ They are available only in the `getoptions` and `getoptions_help` functions.
 - switches (SWITCH)
   - Options
 - attributes (KEY-VALUE)
+  - `abbr`:BOOLEAN - Enable the abbreviated option
   - `counter`:BOOLEAN - Counts the number of flags
   - `export`:BOOLEAN - Export variables
   - `hidden`:BOOLEAN - Do not display in help
@@ -478,6 +479,7 @@ They are available only in the `getoptions` and `getoptions_help` functions.
 - switches (SWITCH)
   - Options
 - attributes (KEY-VALUE)
+  - `abbr`:BOOLEAN - Enable the abbreviated option
   - `export`:BOOLEAN - Export variables
   - `hidden`:BOOLEAN - Do not display in help
   - `init`:[@INIT-VALUE | =STRING | CODE] - Initial value
@@ -497,6 +499,7 @@ They are available only in the `getoptions` and `getoptions_help` functions.
 - switches (SWITCH)
   - Options
 - attributes (KEY-VALUE)
+  - `abbr`:BOOLEAN - Enable the abbreviated option
   - `export`:BOOLEAN - Export variables
   - `hidden`:BOOLEAN - Do not display in help
   - `init`:[@INIT-VALUE | =STRING | CODE] - Initial value
@@ -518,6 +521,7 @@ They are available only in the `getoptions` and `getoptions_help` functions.
 - switches (SWITCH)
   - Options
 - attributes (KEY-VALUE)
+  - `abbr`:BOOLEAN - Enable the abbreviated option
   - `hidden`:BOOLEAN - Do not display in help
   - `label`:STRING - Option part of help message
 - message (STRING)

lib/getoptions_abbr.sh

@@ -10,15 +10,15 @@ getoptions_abbr() {
 		_3 'esac'
 	}
 	args() {
-		hidden=''
+		abbr=1
 		shift
 		for i; do
 			case $i in
 				--) break ;;
 				[!-+]*) eval "${i%%:*}=\${i#*:}"
 			esac
 		done
-		[ "$hidden" ] && return 0
+		[ "$abbr" ] || return 0
 
 		for i; do
 			case $i in

spec/getoptions_abbr_spec.sh

@@ -90,11 +90,11 @@ Describe "getoptions_abbr()"
 		End
 	End
 
-	Context "when hide attribute specified"
+	Context "when abbr attribute not specified"
 		parser_definition() {
 			setup ARGS abbr:true
-			flag  FLAG --flag -- hidden
-			param PARAM --param hidden:true
+			flag  FLAG --flag -- abbr:
+			param PARAM --param abbr:
 		}
 
 		It "does not treat as an abbreviation option"