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/*
* meli - text_processing mod.
*
* Copyright 2017-2020 Manos Pitsidianakis
*
* This file is part of meli.
*
* meli is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* meli is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with meli. If not, see <http://www.gnu.org/licenses/>.
*/
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, new_len: usize) {
if new_len >= self.len() {
return;
}
extern crate unicode_segmentation;
use unicode_segmentation::UnicodeSegmentation;
if let Some((last, _)) = UnicodeSegmentation::grapheme_indices(self.as_str(), true)
.take(new_len)
.last()
{
String::truncate(self, last);
}
}
}
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("*"));
}