Function syntect::util::modify_range

pub fn modify_range<'a>(
    v: &[(Style, &'a str)],
    r: Range<usize>,
    modifier: StyleModifier
) -> Vec<(Style, &'a str)> 

Modify part of a highlighted line using a style modifier, useful for highlighting sections of a line.

Examples

use syntect::util::modify_range;
use syntect::highlighting::{Style, StyleModifier, FontStyle};

let plain = Style::default();
let boldmod = StyleModifier { foreground: None, background: None, font_style: Some(FontStyle::BOLD) };
let bold = plain.apply(boldmod);

let l = &[(plain, "abc"), (plain, "def"), (plain, "ghi")];
let l2 = modify_range(l, 1..6, boldmod);
assert_eq!(l2, &[(plain, "a"), (bold, "bc"), (bold, "def"), (plain, "ghi")]);