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Implemented case statements

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pagedmov
2025-03-19 02:16:53 -04:00
parent 653a5fe344
commit 10af34b0d7
12 changed files with 2809 additions and 100 deletions
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104
src/expand.rs
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@@ -546,97 +546,25 @@ pub fn expand_prompt(raw: &str) -> ShResult<String> {
/// Expand aliases in the given input string
pub fn expand_aliases(input: String, mut already_expanded: HashSet<String>) -> String {
let mut result = String::new();
let mut cur_word = String::new();
let mut chars = input.chars().peekable();
let mut is_cmd = true;
let mut result = input.clone();
let tokens: Vec<_> = LexStream::new(Rc::new(input), LexFlags::empty()).collect();
let mut expanded_this_iter: Vec<String> = vec![];
let mut expanded_this_iter = HashSet::new();
while let Some(ch) = chars.next() {
match ch {
';' | '\n' => {
if is_cmd {
if !is_keyword(&cur_word) {
if !already_expanded.contains(&cur_word) {
if let Some(alias) = read_logic(|l| l.get_alias(&cur_word)) {
result.push_str(&alias);
expanded_this_iter.insert(cur_word.clone());
cur_word.clear();
} else {
result.push_str(&mem::take(&mut cur_word));
}
}
} else {
result.push_str(&mem::take(&mut cur_word));
}
} else {
result.push_str(&mem::take(&mut cur_word));
}
result.push(ch);
is_cmd = true;
while let Some(next_ch) = chars.peek() {
if is_hard_sep(*next_ch) {
result.push(chars.next().unwrap());
} else {
break
}
}
}
' ' | '\t' => {
if is_cmd {
if !is_keyword(&cur_word) {
if let Some(alias) = read_logic(|l| l.get_alias(&cur_word)) {
if !already_expanded.contains(&cur_word) {
result.push_str(&alias);
expanded_this_iter.insert(cur_word.clone());
cur_word.clear();
} else {
result.push_str(&mem::take(&mut cur_word));
}
is_cmd = false;
} else {
result.push_str(&mem::take(&mut cur_word));
is_cmd = false;
}
} else {
result.push_str(&mem::take(&mut cur_word));
}
} else {
result.push_str(&mem::take(&mut cur_word));
}
result.push(ch);
while let Some(next_ch) = chars.peek() {
if is_field_sep(*next_ch) {
result.push(chars.next().unwrap());
} else {
break
}
}
}
_ => cur_word.push(ch)
}
}
if !cur_word.is_empty() {
if is_cmd {
if !is_keyword(&cur_word) {
if let Some(alias) = read_logic(|l| l.get_alias(&cur_word)) {
if !already_expanded.contains(&cur_word) {
result.push_str(&alias);
expanded_this_iter.insert(cur_word.clone());
cur_word.clear();
} else {
result.push_str(&mem::take(&mut cur_word));
}
} else {
result.push_str(&mem::take(&mut cur_word));
}
} else {
result.push_str(&mem::take(&mut cur_word));
}
} else {
result.push_str(&mem::take(&mut cur_word));
for token_result in tokens.into_iter().rev() {
let Ok(tk) = token_result else { continue };
if !tk.flags.contains(TkFlags::IS_CMD) { continue }
let raw_tk = tk.span.as_str().to_string();
if already_expanded.contains(&raw_tk) { continue }
if let Some(alias) = read_logic(|l| l.get_alias(&raw_tk)) {
result.replace_range(tk.span.range(), &alias);
expanded_this_iter.push(raw_tk);
}
}
if expanded_this_iter.is_empty() {
return result
} else {