1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
use crate::systems::cmd::_commands::{jv_cmd_nodes, jv_cmd_process_node};
use crate::systems::cmd::cmd_system::JVCommandContext;
use crate::systems::cmd::errors::CmdProcessError;
use crate::systems::render::renderer::JVRenderResult;
pub async fn jv_cmd_process(
args: &Vec<String>,
ctx: JVCommandContext,
renderer_override: String,
) -> Result<JVRenderResult, CmdProcessError> {
let nodes = jv_cmd_nodes();
// Why add a space?
// Add a space at the end of the command string for precise command prefix matching.
// For example: when the input command is "bananas", if there are two commands "banana" and "bananas",
// without a space it might incorrectly match "banana" (because "bananas".starts_with("banana") is true).
// After adding a space, "bananas " will not match "banana ", thus avoiding ambiguity caused by overlapping prefixes.
let command = format!("{} ", args.join(" "));
// Find all nodes that match the command prefix
let matching_nodes: Vec<&String> = nodes
.iter()
// Also add a space to the node string to ensure consistent matching logic
.filter(|node| command.starts_with(&format!("{} ", node)))
.collect();
match matching_nodes.len() {
0 => {
// No matching node found
return Err(CmdProcessError::NoMatchingCommand);
}
1 => {
let matched_prefix = matching_nodes[0];
let prefix_len = matched_prefix.split_whitespace().count();
let trimmed_args: Vec<String> = args.into_iter().cloned().skip(prefix_len).collect();
return jv_cmd_process_node(matched_prefix, trimmed_args, ctx, renderer_override).await;
}
_ => {
// Multiple matching nodes found
// Find the node with the longest length (most specific match)
let matched_prefix = matching_nodes.iter().max_by_key(|node| node.len()).unwrap();
let prefix_len = matched_prefix.split_whitespace().count();
let trimmed_args: Vec<String> = args.into_iter().cloned().skip(prefix_len).collect();
return jv_cmd_process_node(matched_prefix, trimmed_args, ctx, renderer_override).await;
}
}
}
|
