refactor argument system

- arguments can have multiple names simultaneously
- argument values can be passed using spaces (e.g., --arg value)
- single-character arguments can be passed using a single dash (e.g., --a -> -a)
- multiple single-character arguments can be combined (e.g., -a -b -> -ab)
- simplify custom arguments using generic classes

src/commonMain/kotlin/com/infendro/cli/exception/run/ArgumentCountException.kt

@@ -1,7 +0,0 @@
-package com.infendro.cli.exception.run
-
-class ArgumentCountException(
-    val argument: String,
-    val min: Int,
-    val max: Int,
-) : Exception()

src/commonMain/kotlin/com/infendro/cli/exception/run/DuplicateArgumentException.kt

@@ -0,0 +1,10 @@
+package com.infendro.cli.exception.run
+
+import com.infendro.cli.exception.CliException
+
+class DuplicateArgumentException(
+    val argument: String,
+) : CliException() {
+    override val message: String
+        get() = """duplicate argument "$argument""""
+}

src/commonMain/kotlin/com/infendro/cli/exception/run/InvalidArgumentException.kt

@@ -1,5 +0,0 @@
-package com.infendro.cli.exception.run
-
-class InvalidArgumentException(
-    val argument: String,
-) : Exception()

src/commonMain/kotlin/com/infendro/cli/exception/run/MalformedArgumentException.kt

@@ -0,0 +1,10 @@
+package com.infendro.cli.exception.run
+
+import com.infendro.cli.exception.CliException
+
+class MalformedArgumentException(
+    val argument: String,
+) : CliException() {
+    override val message: String
+        get() = """malformed argument "$argument""""
+}

src/commonMain/kotlin/com/infendro/cli/exception/run/MissingArgumentException.kt

@@ -0,0 +1,10 @@
+package com.infendro.cli.exception.run
+
+import com.infendro.cli.exception.CliException
+
+class MissingArgumentException(
+    val argument: String,
+) : CliException() {
+    override val message: String
+        get() = """missing argument "$argument""""
+}

src/commonMain/kotlin/com/infendro/cli/exception/run/ParseException.kt

@@ -0,0 +1,11 @@
+package com.infendro.cli.exception.run
+
+import com.infendro.cli.exception.CliException
+
+class ParseException(
+    val text: String?,
+    val type: String,
+) : CliException() {
+    override val message: String
+        get() = """"$text" cannot be converted to $type"""
+}

src/commonMain/kotlin/com/infendro/cli/exception/run/UnknownArgumentException.kt

@@ -1,5 +1,10 @@
 package com.infendro.cli.exception.run
 
+import com.infendro.cli.exception.CliException
+
 class UnknownArgumentException(
     val argument: String,
-) : Exception()
+) : CliException() {
+    override val message: String
+        get() = """unknown argument "$argument""""
+}

src/commonMain/kotlin/com/infendro/cli/exception/run/UnknownCommandException.kt

@@ -1,5 +1,10 @@
 package com.infendro.cli.exception.run
 
+import com.infendro.cli.exception.CliException
+
 class UnknownCommandException(
     val command: String,
-) : Exception()
+) : CliException() {
+    override val message: String
+        get() = """unknown command "$command""""
+}