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