syntax-highlight of hotkey

[CoffeeChaton]

"hotkey_raw": {
    "name": "meta.hotkey.line.ahk",
    "begin": "^([#!^+&<>*~$]+|(?:<\\^>!))?([!-/]|[:-@]|[\\[-`]|[\\{-~]|[a-zA-Z0-9]+)(\\s&\\s([!-/]|[:-@]|[\\[-`]|[\\{-~]|[a-zA-Z0-9]+))?(?=::)",
    "beginCaptures": {
        "1": { "name": "storage.modifier.hotkey.ahk" },
        "2": { "patterns": [ { "include": "#keylist" } ] },
        "4": { "patterns": [ { "include": "#keylist" } ] }
    },
    "end": "::",
    "endCaptures": { "0": { "name": "punctuation.definition.end.hotkey.ahk" } },
    "patterns": [ { "include": "#comment" } ]
},
"hotkey": {
    "name": "meta.hotkey.line.ahk",
    "begin": "^([#!^+&<>*~$]+|(?:<\\^[<>]!))?([!-/]|[:-@]|[\\[-`]|[\\{-~]|[a-zA-Z0-9]+)([ \\t]&[ \\t]([!-/]|[:-@]|[\\[-`]|[\\{-~]|[a-zA-Z0-9]+))?([ \\t]+(?i:UP))?(?=::)",
    //                                                                                                                                          ^1 support of "UP" suffix
    "beginCaptures": {
        "1": { "name": "storage.modifier.hotkey.ahk" },
        "2": {
            "name": "meta.2.hotkey.line.ahk",
            "patterns": [
                { "include": "#keylist" },
                {
                    "match": "[!-/]|[:-@]|[\\[-`]|[\\{-~]",
                    "name": "string.2.storage.modifier.hotkey.ahk"
                    //       ^2 string avoid user open "editor.matchBrackets", then {} () [] <> may be out of control
                },
                {
                    "match": "(?<![a-zA-Z0-9])[a-zA-Z0-9](?![a-zA-Z0-9])",
                    //       ^3 Highlight single-character keywords, which can hint the user to accidentally enter an invalid key
                    "name": "markup.bold.hotkey.ahk"
                }
            ]
        },
        "4": {
            "name": "meta.4.hotkey.line.ahk",
            "patterns": [
                { "include": "#keylist" },
                {
                    "match": "[!-/]|[:-@]|[\\[-`]|[\\{-~]",
                    "name": "string.2.storage.modifier.hotkey.ahk"
                },
                {
                    "match": "(?<![a-zA-Z0-9])[a-zA-Z0-9](?![a-zA-Z0-9])",
                    "name": "markup.bold.hotkey.ahk"
                }
            ]
        },
        "5": { "name": "storage.modifier.up.hotkey.ahk" }
    },
    "end": "::",
    "patterns": [ { "include": "#comment" } ]
},

^1 support of "UP" suffix

At the end of the hotkey, using up as the suffix is valid and can be run.

F10 & F11 Up::
    MsgBox, % A_ThisHotkey
return

^2 avoid "editor.matchBrackets" out of control

string avoid user open "editor.matchBrackets", then {} () [] <> may be out of control

^3 Highlight single-character keywords

If all valid keys are highlighted, the invalid keys will be very obvious,
So I suggest highlighting [a-zA-Z0-9]{1}

---

I am not good at yaml, so I can only provide jsonc for your reference

[CzarOfScripts]

Have you tried the vk** code?

[CoffeeChaton]

Have you tried the code?vk**

keylist is cover.

{ "include": "#keylist" },

vscode-autohotkey/syntaxes/ahk.tmLanguage.json

Line 306 in 2315db7

"match": "\\b(?i:shift|lshift|rshift|alt|lalt|ralt|control|lcontrol|rcontrol|ctrl|lctrl|rctrl|lwin|rwin|appskey|lbutton|rbutton|mbutton|WheelUp|WheelDown|wheelleft|wheelright|xbutton1|xbutton2|joy1|joy2|joy3|joy4|joy5|joy6|joy7|joy8|joy9|joy10|joy11|joy12|joy13|joy14|joy15|joy16|joy17|joy18|joy19|joy20|joy21|joy22|joy23|joy24|joy25|joy26|joy27|joy28|joy29|joy30|joy31|joy32|joyx|joyy|joyz|joyr|joyu|joyv|joypov|joyname|joybuttons|joyaxes|joyinfo|space|tab|enter|escape|esc|backspace|bs|delete|del|insert|ins|pgdn|pgup|home|end|up|down|left|right|printscreen|ctrlbreak|pause|scrolllock|capslock|numlock|numpad0|numpad1|numpad2|numpad3|numpad4|numpad5|numpad6|numpad7|numpad8|numpad9|numpadmult|numpadadd|numpadsub|numpaddiv|numpaddot|numpaddel|numpadins|numpadclear|numpadleft|numpadright|numpaddown|numpadup|numpadhome|numpadend|numpadpgdn|numpadpgup|numpadenter|f1|f2|f3|f4|f5|f6|f7|f8|f9|f10|f11|f12|f13|f14|f15|f16|f17|f18|f19|f20|f21|f22|f23|f24|browser_back|browser_forward|browser_refresh|browser_stop|browser_search|browser_favorites|browser_home|volume_mute|volume_down|volume_up|media_next|media_prev|media_stop|media_play_pause|launch_mail|launch_media|launch_app1|launch_app2|vk[a-f\\d]{1,2}(sc[a-f\\d]+)?|sc[a-f\\d]+)\\b",

[helsmy]

Thank for your suggestion. It is excellent.

UP match.

Great.let's merge it

Additional patterns for single chararcter keys.

Great, let's merge it, too.

Name of brackets.

The color of string is not always the same with markup. It depends on themes.

Some themes also provide bold effect for bold name section and I think it is better for hotkey. But, In the theme I used (Dark+), string.bold is not effective. We may need try some other options.
Here is some available name: naming-conventions

[helsmy]

string and markup section can take effect at the same time. So, it can be fixed #19. New highlighting will be added in the next version.