- [[id:bb4f96cd-458c-495b-a605-313b2e3e28d2][Back to CLI Helper - library main page]]
-* Theory
-** Commands and Arguments
+* Terminology
+** Command and argument
Every command-line application has a way of receiving input from
users, usually in the form of command-line arguments. A command-line
| 2 | --input | [[id:ffedf388-4d23-41eb-98d0-83fd3940b24d][option1]] |
| 3, 4, 5 | vid1.mp4 vid2.mp4 vid3.mp4 | [[id:8a39d20c-421f-4bc7-94e4-8e561e58bea0][parameters for --input option]] |
| 6 | --quality | [[id:ffedf388-4d23-41eb-98d0-83fd3940b24d][option2]] |
-| 7 | 5 | [[id:8a39d20c-421f-4bc7-94e4-8e561e58bea0][option for --quaily option]] |
+| 7 | 5 | [[id:8a39d20c-421f-4bc7-94e4-8e561e58bea0][parameter for --quaily option]] |
** Subcommand
:PROPERTIES:
:ID: 94242e8a-c59b-42fd-8cc7-ba3df1938119
:END:
-Subcommands are more specific actions that a command can perform. They
-are often used with commands that have multiple functions. In our
-example, *encode* is a subcommand of *my-video-coder*.
+Subcommands are arguments that invoke more specific action that a
+command can perform. They are often used with commands that have
+multiple functions. In our example, *encode* is a subcommand of
+*my-video-coder*.
** Option
:PROPERTIES:
For instance, in our example:
- 'vid1.mp4 vid2.mp4 vid3.mp4' are parameters for the *--input* option.
- '5' is a parameter for the *--quality* option.
-
-* Implementation :noexport:
-
-Parsing Command-line Arguments:
-- `Parameter` class is used for defining parameters with their
- descriptions, types, and aliases. It also keeps track of whether the
- specific option was present in the command line or not. This
- information is used later in the processing.
-
- - `DirectoryParameter`, `FileParameter`, `IntegerParameter`,
- `StringParameter`, `NullParameter`, and `StringParameters` are
- examples of Parameter classes, each one having unique
- characteristics for handling specific types of parameters
- (directories, files, integers, strings, etc.).
-
-- `ArgumentCount` class determines if a option can have any amount
- of arguments (MULTI), exactly one argument (SINGLE), or no arguments
- (NONE).
-
-- `Parser` class takes all these parameters and checks whether all
- required arguments are provided and if they match the expected
- format.
-
-** Usage example
-
-TODO: