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option_parser: Handle inner brackets

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In case we want to implement a type that would hold a list of lists, we
need the option parser to be able to ignore the commas for multiple
layers of brackets.

Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
This commit is contained in:
Sebastien Boeuf 2021-11-08 15:59:59 +01:00
parent b81d758c41
commit e4cbafcd01
1 changed files with 8 additions and 7 deletions
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15
option_parser/src/lib.rs
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@ -50,9 +50,9 @@ impl OptionParser {
}
let mut options_list: Vec<String> = Vec::new();
let mut merge_elements = false;
let mut opened_brackets: usize = 0;
for element in input.trim().split(',') {
if merge_elements {
if opened_brackets > 0 {
if let Some(last) = options_list.last_mut() {
*last = format!("{},{}", last, element);
} else {
@ -62,11 +62,12 @@ impl OptionParser {
options_list.push(element.to_string());
}
if element.contains('[') {
merge_elements = true;
}
if element.contains(']') {
merge_elements = false;
opened_brackets += element.matches('[').count();
let closing_brackets = element.matches(']').count();
if closing_brackets > opened_brackets {
return Err(OptionParserError::InvalidSyntax(input.to_owned()));
} else {
opened_brackets -= closing_brackets;
}
}