added show-tabs (-T) feature

Skosulor · Jun 6, 2020 · 4f2c4d0 · 4f2c4d0
1 parent 2f71893
commit 4f2c4d0
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Showing 2 changed files with 7 additions and 7 deletions.
diff --git a/README.md b/README.md
@@ -23,9 +23,9 @@ TODO
   * [ ] -e, equivalent to -vE
   * [X] -E, --show-ends
   * [X] -n, --number
-  * [ ] -s, --squeeze blank
+  * [X] -s, --squeeze blank
   * [ ] -t  equivalent to -vT
-  * [ ] -T, --show-tabs
+  * [X] -T, --show-tabs
   * [X] -u (ignored)
   * [ ] -v, --show-nonprinting
   * [ ] --help display this help and exit

diff --git a/src/main.rs b/src/main.rs
@@ -69,15 +69,12 @@ struct Output {
     opt: Options,
 }
 
-// fn display_help() {}
-// fn version() {}
-
 impl Output {
     fn format_output(&mut self) {
         let f_vec: Vec<&dyn Fn(&mut Output)> = vec![
+            &Output::remove_duplicate_blank,
             &Output::number_lines,
             &Output::show_ends,
-            &Output::remove_duplicate_blank,
             &Output::show_tabs,
             &Output::show_nonprinting,
         ];
@@ -136,9 +133,12 @@ impl Output {
     }
     fn show_tabs(&mut self) {
         if self.opt.show_tabs || self.opt.nonPrint_and_showTabs || self.opt.A {
-            ()
+            for line in self.out.iter_mut() {
+                *line = line.replace("\t", "^I").clone();
+            }
         }
     }
+
     //
     // display charactars as ^ which are not supported by the terminal
     fn show_nonprinting(&mut self) {