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use super::{ReplCommand, REPL_COMMANDS};
use crate::config::GlobalConfig;
use reedline::{Completer, Span, Suggestion};
use std::collections::HashMap;
impl Completer for ReplCompleter {
fn complete(&mut self, line: &str, pos: usize) -> Vec<Suggestion> {
let mut suggestions = vec![];
let line = &line[0..pos];
let mut parts = split_line(line);
if parts.is_empty() {
return suggestions;
}
if parts[0].0 == r#":::"# {
parts.remove(0);
}
let parts_len = parts.len();
if parts_len == 0 {
return suggestions;
}
let (cmd, cmd_start) = parts[0];
if !cmd.starts_with('.') {
return suggestions;
}
let state = self.config.read().get_state();
let commands: Vec<_> = self
.commands
.iter()
.filter(|cmd| {
if !cmd.is_valid(&state) {
return false;
}
let line = parts
.iter()
.take(2)
.map(|(v, _)| *v)
.collect::<Vec<&str>>()
.join(" ");
cmd.name.starts_with(&line)
})
.collect();
if parts_len > 1 {
let span = Span::new(parts[parts_len - 1].1, pos);
let args: Vec<&str> = parts.iter().skip(1).map(|(v, _)| *v).collect();
suggestions.extend(
self.config
.read()
.repl_complete(cmd, &args)
.iter()
.map(|(value, description)| create_suggestion(value, description, span)),
)
}
if suggestions.is_empty() {
let span = Span::new(cmd_start, pos);
suggestions.extend(commands.iter().map(|cmd| {
let name = cmd.name;
let description = cmd.description;
let has_group = self.groups.get(name).map(|v| *v > 1).unwrap_or_default();
let name = if has_group {
name.to_string()
} else {
format!("{name} ")
};
create_suggestion(&name, description, span)
}))
}
suggestions
}
}
pub struct ReplCompleter {
config: GlobalConfig,
commands: Vec<ReplCommand>,
groups: HashMap<&'static str, usize>,
}
impl ReplCompleter {
pub fn new(config: &GlobalConfig) -> Self {
let mut groups = HashMap::new();
let commands: Vec<ReplCommand> = REPL_COMMANDS.to_vec();
for cmd in REPL_COMMANDS.iter() {
let name = cmd.name;
if let Some(count) = groups.get(name) {
groups.insert(name, count + 1);
} else {
groups.insert(name, 1);
}
}
Self {
config: config.clone(),
commands,
groups,
}
}
}
fn create_suggestion(value: &str, description: &str, span: Span) -> Suggestion {
let description = if description.is_empty() {
None
} else {
Some(description.to_string())
};
Suggestion {
value: value.to_string(),
description,
style: None,
extra: None,
span,
append_whitespace: false,
}
}
fn split_line(line: &str) -> Vec<(&str, usize)> {
let mut parts = vec![];
let mut part_start = None;
for (i, ch) in line.char_indices() {
if ch == ' ' {
if let Some(s) = part_start {
parts.push((&line[s..i], s));
part_start = None;
}
} else if part_start.is_none() {
part_start = Some(i)
}
}
if let Some(s) = part_start {
parts.push((&line[s..], s));
} else {
parts.push(("", line.len()))
}
parts
}
#[test]
fn test_split_line() {
assert_eq!(split_line(".role coder"), vec![(".role", 0), ("coder", 6)],);
assert_eq!(
split_line(" .role coder"),
vec![(".role", 1), ("coder", 9)],
);
assert_eq!(
split_line(".set highlight "),
vec![(".set", 0), ("highlight", 5), ("", 15)],
);
assert_eq!(
split_line(".set highlight t"),
vec![(".set", 0), ("highlight", 5), ("t", 15)],
);
}
|
