pr: add -T/--omit-pagination option

Author: ChrisDryden

src/uu/pr/locales/en-US.ftl

@@ -30,6 +30,9 @@ pr-help-omit-header =
   Write neither the five-line identifying header nor the five-line
                   trailer usually supplied for each page. Quit writing after the last line
                    of each file without spacing to the end of the page.
+pr-help-omit-pagination =
+  omit page headers and trailers, eliminate any pagination
+                  by form feeds set in input files
 pr-help-page-length =
   Override the 66-line default (default number of lines of text 56,
                   and with -F 63) and reset the page length to lines.  If lines is not

src/uu/pr/src/pr.rs

@@ -42,6 +42,7 @@ mod options {
     pub const FIRST_LINE_NUMBER: &str = "first-line-number";
     pub const PAGES: &str = "pages";
     pub const OMIT_HEADER: &str = "omit-header";
+    pub const OMIT_PAGINATION: &str = "omit-pagination";
     pub const PAGE_LENGTH: &str = "length";
     pub const NO_FILE_WARNINGS: &str = "no-file-warnings";
     pub const FORM_FEED: &str = "form-feed";
@@ -215,6 +216,13 @@ pub fn uu_app() -> Command {
                 .help(translate!("pr-help-omit-header"))
                 .action(ArgAction::SetTrue),
         )
+        .arg(
+            Arg::new(options::OMIT_PAGINATION)
+                .short('T')
+                .long(options::OMIT_PAGINATION)
+                .help(translate!("pr-help-omit-pagination"))
+                .action(ArgAction::SetTrue),
+        )
         .arg(
             Arg::new(options::PAGE_LENGTH)
                 .short('l')
@@ -633,7 +641,9 @@ fn build_options(
 
     let page_length_le_ht = page_length < (HEADER_LINES_PER_PAGE + TRAILER_LINES_PER_PAGE);
 
-    let display_header_and_trailer = !page_length_le_ht && !matches.get_flag(options::OMIT_HEADER);
+    let display_header_and_trailer = !page_length_le_ht
+        && !matches.get_flag(options::OMIT_HEADER)
+        && !matches.get_flag(options::OMIT_PAGINATION);
 
     let content_lines_per_page = if page_length_le_ht {
         page_length

tests/by-util/test_pr.rs

@@ -641,3 +641,14 @@ fn test_separator_options_default_values() {
         .pipe_in("a\nb\n")
         .succeeds();
 }
+
+#[test]
+fn test_omit_pagination_option() {
+    // -T/--omit-pagination omits headers/trailers and eliminates form feeds
+    // TODO: verify output matches GNU pr behavior (form feed elimination)
+    new_ucmd!().args(&["-T"]).pipe_in("a\nb\n").succeeds();
+    new_ucmd!()
+        .args(&["--omit-pagination"])
+        .pipe_in("a\nb\n")
+        .succeeds();
+}