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pub mod grapheme_clusters;
pub mod line_break;
mod tables;
mod types;
pub use types::Reflow;
pub mod wcwidth;
pub use grapheme_clusters::*;
pub use line_break::*;
pub use wcwidth::*;
pub trait Truncate {
fn truncate_at_boundary(self, new_len: usize);
}
impl Truncate for &mut String {
fn truncate_at_boundary(self, mut new_len: usize) {
while new_len > 0 && !self.is_char_boundary(new_len) {
new_len -= 1;
}
String::truncate(self, new_len);
}
}
pub trait GlobMatch {
fn matches_glob(&self, s: &str) -> bool;
fn is_glob(&self) -> bool;
}
impl GlobMatch for str {
fn matches_glob(&self, s: &str) -> bool {
let parts = s.split("*");
let mut ptr = 0;
let mut part_no = 0;
for p in parts {
if p.is_empty() {
/* asterisk is at beginning and/or end of glob */
/* eg "*".split("*") gives ["", ""] */
part_no += 1;
continue;
}
if ptr >= self.len() {
return false;
}
if part_no > 0 {
while !&self[ptr..].starts_with(p) {
ptr += 1;
if ptr >= self.len() {
return false;
}
}
}
if !&self[ptr..].starts_with(p) {
return false;
}
ptr += p.len();
part_no += 1;
}
true
}
fn is_glob(&self) -> bool {
self.contains('*')
}
}
#[test]
fn test_globmatch() {
assert!("INBOX".matches_glob("INBOX"));
assert!("INBOX/Sent".matches_glob("INBOX/*"));
assert!(!"INBOX/Sent".matches_glob("*/Drafts"));
assert!("INBOX/Sent".matches_glob("*/Sent"));
assert!("INBOX/Archives/2047".matches_glob("*"));
}