v1.6.3

new callback for when a command has been found with the ability to terminate the parsing

.eslintrc.json

@@ -11,7 +11,7 @@
     "parser": "@typescript-eslint/parser",
     "plugins": [ "@typescript-eslint" ],
     "parserOptions": {
-        "ecmaVersion": 2022,
+        "ecmaVersion": "latest",
         "sourceType": "module"
     },
     "rules": {
@@ -87,9 +87,13 @@
         "id-blacklist": "warn",
         "id-match": "warn",
         "implicit-arrow-linebreak": "warn",
-        "indent": ["warn", 4, {
+        "indent": [
-            "SwitchCase": 1
+            "warn",
-        }],
+            4,
+            {
+                "SwitchCase": 1
+            }
+        ],
         "init-declarations": "warn",
         "quotes": [
             "error",
@@ -133,7 +137,7 @@
         ],
         "max-lines-per-function": [
             "warn",
-            100
+            140
         ],
         "max-depth": [
             "warn",
@@ -191,7 +195,10 @@
         "no-restricted-modules": "warn",
         "no-restricted-properties": "warn",
         "no-restricted-syntax": "warn",
-        "no-return-assign": ["warn", "except-parens"],
+        "no-return-assign": [
+            "warn",
+            "except-parens"
+        ],
         "no-return-await": "warn",
         "no-script-url": "warn",
         "no-self-compare": "warn",
@@ -202,6 +209,7 @@
         "no-tabs": "warn",
         "no-template-curly-in-string": "error",
         "no-throw-literal": "warn",
+        "no-trailing-spaces": "warn",
         "no-undef-init": "error",
         "no-undefined": "error",
         "no-unmodified-loop-condition": "warn",
@@ -238,7 +246,6 @@
             "warn",
             "before"
         ],
-        "padding-line-between-statements": "warn",
         "padded-blocks": [
             "warn",
             {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@navy.gif/commandparser",
-  "version": "1.6.2",
+  "version": "1.6.3",
   "description": "Parser meant to parse commands and their options for discord bots",
   "author": "Navy.gif",
   "license": "MIT",
@@ -36,6 +36,6 @@
     "build": "tsc && tsc -p tsconfig.cjs.json && node ./scripts/declareTypes.js",
     "test": "yarn build && jest",
     "release": "yarn build && yarn publish",
-    "lint": "eslint --fix"
+    "lint": "eslint --fix src/"
   }
 }

src/Parser.ts

@@ -30,8 +30,9 @@ type ParserOptions = {
 
 type ParseOptions = {
     prefix?: string,
-    commandFilter?: (cmd: ICommand) => boolean,
     guild?: unknown
+    commandFilter?: (cmd: ICommand) => boolean | Promise<boolean>,
+    commandFound?: <Cmd extends ICommand>(cmd: Cmd) => boolean | Promise<boolean>
 }
 
 const flagReg = /(?:^| )(?<flag>(?:--[a-z0-9]{3,})|(?:-[a-z]{1,2}))(?:$| )/iu;
@@ -69,22 +70,21 @@ class Parser extends EventEmitter
     }
 
     /**
-     *
+     * @param message The text to parse command from
-     *
+     * @param [prefix=this.prefix] Optional prefix to look for in front of the message
-     * @param {string} message The text to parse command from
+     * @param [guild] The guild to pass to the parser if the command options require values that expect guild based structures, e.g. a guild member.
-     * @param {string} [prefix=this.prefix] Optional prefix to look for in front of the message
+     * @param [commandFilter] Function for filtering out commands, useful if you want to stop the parser on a command level before argument parsing, probably saves some processing time. If the function evaluates to true the parsing stops
-     * @param {unknown} [guild] The guild to pass to the parser if the command options require values that expect guild based structures, e.g. a guild member.
+     * @param [commandFound] Callback that is called when a command is matched, can be used to halt further parsing by e.g. checking for necessary permissions, returning a truthy value will halt parsing
-     * @param {Function} [commandFilter] Function for filtering out commands, useful if you want to stop the parser on a command level before argument parsin, probably saves some processing time. If the function evaluates to true the parsing stops
+     * @return
-     * @return {Promise<ParseResult | null>}  {(Promise<ParseResult | null>)}
      * @memberof Parser
      */
-    // eslint-disable-next-line  @typescript-eslint/ban-types
     async parseMessage (
         message: string,
         {
             prefix = this.prefix,
             guild,
-            commandFilter
+            commandFilter,
+            commandFound,
         }: ParseOptions = {}
     ): Promise<ParseResult | null>
     {
@@ -100,7 +100,7 @@ class Parser extends EventEmitter
             return null;
         this.debug(`Matched command ${command.name}`);
 
-        if (commandFilter && typeof commandFilter === 'function')
+        if (typeof commandFilter === 'function')
         {
             const result = await commandFilter(command);
             if (!result)
@@ -110,6 +110,9 @@ class Parser extends EventEmitter
             }
         }
 
+        if (typeof commandFound === 'function' && await commandFound(command))
+            return null;
+
         const { subcommands, subcommandGroups } = command;
         const args: ArgsResult = {};
         const parseResult: ParseResult = { args, command, subcommand: null, subcommandGroup: null };

src/util/Errors/ParserError.ts

@@ -1,5 +1,7 @@
-export class ParserError extends Error {
+export class ParserError extends Error
-    constructor (message: string, options?: ErrorOptions) {
+{
+    constructor (message: string, options?: ErrorOptions)
+    {
         super(message, options);
         this.name = 'ParserError';
     }

tests/playground.js

@@ -1,22 +1,34 @@
 import { Parser, Command, OptionType } from '../build/esm/index.js';
 
+// const command = new Command({
+//     name: 'create',
+//     options: [{
+//         name: 'registration-code',
+//         aliases: ['code'],
+//         type: OptionType.SUB_COMMAND,
+//         options: [{
+//             name: 'amount',
+//             flag: true,
+//             type: OptionType.INTEGER,
+//             defaultValue: 1,
+//             valueOptional: true,
+//             required: true
+//         }]
+//     }]
+// });
 const command = new Command({
-    name: 'create',
+    name: 'botban',
-    options: [{
+    options: [
-        name: 'registration-code',
+        { name: 'users', type: OptionType.STRING, required: true },
-        aliases: ['code'],
+        { name: 'service', choices: ['support', 'reports'], valueAsAlias: true, required: true }
-        type: OptionType.SUB_COMMAND,
+    ]
-        options: [{
-            name: 'amount',
-            flag: true,
-            type: OptionType.INTEGER,
-            defaultValue: 1,
-            valueOptional: true
-        }]
-    }]
 });
 const parser = new Parser({ commands: [command], prefix: '', debug: true });
 parser.on('debug', console.log)
-console.log(await parser.parseMessage('create code -a 1'));
+// console.log(await parser.parseMessage('create code -a 1'));
-console.log(await parser.parseMessage('create code --help'));
+// console.log(await parser.parseMessage('create code --help'));
-console.log(await parser.parseMessage('create --help'));
+// // console.log(await parser.parseMessage('create --help'));
+
+// console.log(await parser.parseMessage('create code'));
+
+console.log(await parser.parseMessage('botban support dingus'));