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// Take a look at the license at the top of the repository in the LICENSE file.
#[derive(Debug, Clone)]
pub struct JsonMinifier {
pub is_string: bool,
pub escaped_quotation: u8,
}
impl Default for JsonMinifier {
fn default() -> Self {
Self::new()
}
}
impl JsonMinifier {
pub fn new() -> Self {
JsonMinifier {
is_string: false,
escaped_quotation: 0,
}
}
}
#[inline]
pub fn keep_element(minifier: &mut JsonMinifier, item1: &char, item2: Option<&char>) -> bool {
let remove_element =
item1.is_ascii_control() || is_whitespace_outside_string(minifier, item1, item2);
!remove_element
}
#[inline]
fn is_whitespace_outside_string(
minifier: &mut JsonMinifier,
item1: &char,
item2: Option<&char>,
) -> bool {
if !minifier.is_string && item1.eq(&'"') {
minifier.is_string = true;
} else if minifier.is_string {
if item1.eq(&'\\') && item2.eq(&Some(&'"')) {
minifier.escaped_quotation = 4;
}
if minifier.escaped_quotation > 0 {
minifier.escaped_quotation -= 1;
} else if item1.eq(&'"') {
minifier.is_string = false;
}
}
!minifier.is_string && item1.is_whitespace()
}
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