dircolors: align TERM matching behavior with that of GNU dircolors

src/uu/dircolors/src/dircolors.rs

@@ -263,7 +263,7 @@ impl StrUtils for str {
     }
 
     fn fnmatch(&self, pat: &str) -> bool {
-        pat.parse::<glob::Pattern>().unwrap().matches(self)
+        parse_glob::from_str(pat).unwrap().matches(self)
     }
 }
 
@@ -276,7 +276,7 @@ enum ParseState {
 }
 
 use std::collections::HashMap;
-use uucore::format_usage;
+use uucore::{format_usage, parse_glob};
 
 fn parse<T>(lines: T, fmt: &OutputFmt, fp: &str) -> Result<String, String>
 where

tests/by-util/test_dircolors.rs

@@ -165,6 +165,47 @@ fn test_extra_operand() {
         .no_stdout();
 }
 
+#[test]
+fn test_term_matching() {
+    fn check(term_pattern: &str, term: &str, expectation: &str) {
+        let theme = format!(
+            "
+TERM {term_pattern}
+
+.term_matching    00;38;5;61
+"
+        );
+
+        new_ucmd!()
+            .env("TERM", term)
+            .pipe_in(theme)
+            .args(&["-b", "-"])
+            .succeeds()
+            .stdout_is(expectation)
+            .no_stderr();
+    }
+
+    let expectation_if_match = r#"
+LS_COLORS='*.term_matching=00;38;5;61:';
+export LS_COLORS
+"#
+    .trim_start();
+    let expectation_if_no_match = r#"
+LS_COLORS='';
+export LS_COLORS
+"#
+    .trim_start();
+
+    // sanity checks
+    check("matches", "matches", expectation_if_match);
+    check("matches", "no_match", expectation_if_no_match);
+    // character set negation should treat ^ like !
+    check("[!a]_negation", "a_negation", expectation_if_no_match);
+    check("[!a]_negation", "b_negation", expectation_if_match);
+    check("[^a]_negation", "a_negation", expectation_if_no_match);
+    check("[^a]_negation", "b_negation", expectation_if_match);
+}
+
 fn test_helper(file_name: &str, term: &str) {
     new_ucmd!()
         .env("TERM", term)