exa/src/options/flags.rs
Benjamin Sago a8bf990674 Tie value suggestions to their arguments
This commit changes the definition of Arg so that it knows about which values it can accept, and can display them in the help text. They were already being shown in the help text, but they were passed in separately, so one argument could show two different sets of options if it wanted. Now, the argument itself knows whether there are suggestions, so it doesn’t have to be passed in separately.

This means we can use it for other things, including listing choices when an option is missed out, without having to repeat the list.

With Misfire::BadArgument now only having two fields, it’s not worth using a constructor function anymore.
2017-09-14 01:22:37 +01:00

71 lines
4.7 KiB
Rust

use options::parser::{Arg, Args, Values, TakesValue};
// exa options
pub static VERSION: Arg = Arg { short: Some(b'v'), long: "version", takes_value: TakesValue::Forbidden };
pub static HELP: Arg = Arg { short: Some(b'?'), long: "help", takes_value: TakesValue::Forbidden };
// display options
pub static ONE_LINE: Arg = Arg { short: Some(b'1'), long: "oneline", takes_value: TakesValue::Forbidden };
pub static LONG: Arg = Arg { short: Some(b'l'), long: "long", takes_value: TakesValue::Forbidden };
pub static GRID: Arg = Arg { short: Some(b'G'), long: "grid", takes_value: TakesValue::Forbidden };
pub static ACROSS: Arg = Arg { short: Some(b'x'), long: "across", takes_value: TakesValue::Forbidden };
pub static RECURSE: Arg = Arg { short: Some(b'R'), long: "recurse", takes_value: TakesValue::Forbidden };
pub static TREE: Arg = Arg { short: Some(b'T'), long: "tree", takes_value: TakesValue::Forbidden };
pub static CLASSIFY: Arg = Arg { short: Some(b'F'), long: "classify", takes_value: TakesValue::Forbidden };
pub static COLOR: Arg = Arg { short: None, long: "color", takes_value: TakesValue::Necessary(Some(COLOURS)) };
pub static COLOUR: Arg = Arg { short: None, long: "colour", takes_value: TakesValue::Necessary(Some(COLOURS)) };
const COLOURS: &[&str] = &["always", "auto", "never"];
pub static COLOR_SCALE: Arg = Arg { short: None, long: "color-scale", takes_value: TakesValue::Forbidden };
pub static COLOUR_SCALE: Arg = Arg { short: None, long: "colour-scale", takes_value: TakesValue::Forbidden };
// filtering and sorting options
pub static ALL: Arg = Arg { short: Some(b'a'), long: "all", takes_value: TakesValue::Forbidden };
pub static LIST_DIRS: Arg = Arg { short: Some(b'd'), long: "list-dirs", takes_value: TakesValue::Forbidden };
pub static LEVEL: Arg = Arg { short: Some(b'L'), long: "level", takes_value: TakesValue::Necessary(None) };
pub static REVERSE: Arg = Arg { short: Some(b'r'), long: "reverse", takes_value: TakesValue::Forbidden };
pub static SORT: Arg = Arg { short: Some(b's'), long: "sort", takes_value: TakesValue::Necessary(Some(SORTS)) };
pub static IGNORE_GLOB: Arg = Arg { short: Some(b'I'), long: "ignore-glob", takes_value: TakesValue::Necessary(None) };
pub static DIRS_FIRST: Arg = Arg { short: None, long: "group-directories-first", takes_value: TakesValue::Forbidden };
const SORTS: Values = &[ "name", "Name", "size", "extension",
"Extension", "modified", "accessed",
"created", "inode", "type", "none" ];
// display options
pub static BINARY: Arg = Arg { short: Some(b'b'), long: "binary", takes_value: TakesValue::Forbidden };
pub static BYTES: Arg = Arg { short: Some(b'B'), long: "bytes", takes_value: TakesValue::Forbidden };
pub static GROUP: Arg = Arg { short: Some(b'g'), long: "group", takes_value: TakesValue::Forbidden };
pub static HEADER: Arg = Arg { short: Some(b'h'), long: "header", takes_value: TakesValue::Forbidden };
pub static INODE: Arg = Arg { short: Some(b'i'), long: "inode", takes_value: TakesValue::Forbidden };
pub static LINKS: Arg = Arg { short: Some(b'H'), long: "links", takes_value: TakesValue::Forbidden };
pub static MODIFIED: Arg = Arg { short: Some(b'm'), long: "modified", takes_value: TakesValue::Forbidden };
pub static BLOCKS: Arg = Arg { short: Some(b'S'), long: "blocks", takes_value: TakesValue::Forbidden };
pub static TIME: Arg = Arg { short: Some(b't'), long: "time", takes_value: TakesValue::Necessary(Some(TIMES)) };
pub static ACCESSED: Arg = Arg { short: Some(b'u'), long: "accessed", takes_value: TakesValue::Forbidden };
pub static CREATED: Arg = Arg { short: Some(b'U'), long: "created", takes_value: TakesValue::Forbidden };
pub static TIME_STYLE: Arg = Arg { short: None, long: "time-style", takes_value: TakesValue::Necessary(Some(TIME_STYLES)) };
const TIMES: Values = &["modified", "accessed", "created"];
const TIME_STYLES: Values = &["default", "long-iso", "full-iso", "iso"];
// optional feature options
pub static GIT: Arg = Arg { short: None, long: "git", takes_value: TakesValue::Forbidden };
pub static EXTENDED: Arg = Arg { short: Some(b'@'), long: "extended", takes_value: TakesValue::Forbidden };
pub static ALL_ARGS: Args = Args(&[
&VERSION, &HELP,
&ONE_LINE, &LONG, &GRID, &ACROSS, &RECURSE, &TREE, &CLASSIFY,
&COLOR, &COLOUR, &COLOR_SCALE, &COLOUR_SCALE,
&ALL, &LIST_DIRS, &LEVEL, &REVERSE, &SORT, &IGNORE_GLOB, &DIRS_FIRST,
&BINARY, &BYTES, &GROUP, &HEADER, &INODE, &LINKS, &MODIFIED, &BLOCKS,
&TIME, &ACCESSED, &CREATED, &TIME_STYLE,
&GIT, &EXTENDED,
]);