Config & CLI [OUTDATED]

Config is a common singleton class that converts CLI options to programmer-friendly structures (enums almost always).

You can getConfig via getInstance static method, all its properties are global.

Options

cli::Options is a structure that contains all info about CLI options: existent boolean and key-value options, allowed source file extensions, options dependencies, etc.

Also, cli::Options acts as a storage for specified CLI options.

CLI

cli::CLI is a class that processes input argv and produces separate collections of boolean and key-value options. At this step, options are stored as strings. cli::CLI class has an interface to work with options to check that something specified or to find if some value passed to a key-value option.

To simplify argv processing we don't actually walk through all of them. At first, we split them into a vector of string by delimiters like = (actually, options are already delimited by white space). By doing so we don't need to worry about cases when a user writes -print = all or -print= all or -print =all -- all these variants result to ["-print", "=", "all"].

Config

After all the options are collected we can set configurations. It's done in a pretty simple way -- all the argument names are stored in maps with corresponding enum variants. We just need to check if some option is specified and if it is we set the option in Config.

It is important to note that all default values for options inside Config must be set in place, that is, inited like PrintKind printKind{PrintKind::None}.