Package: ncurses-doc
Version: 6.5-2
Severity: minor
Tags: patch

   * What led up to the situation?

     Checking for defects with a new version

test-[g|n]roff -mandoc -t -K utf8 -rF0 -rHY=0 -rCHECKSTYLE=10 -ww -z < "man 
page"

  [Use "groff -e ' $' -e '\\~$' <file>" to find obvious trailing spaces.]

  ["test-groff" is a script in the repository for "groff"; is not shipped]
(local copy and "troff" slightly changed by me).

  [The fate of "test-nroff" was decided in groff bug #55941.]

   * What was the outcome of this action?


troff:<stdin>:386: warning: trailing space in the line


   * What outcome did you expect instead?

     No output (no warnings).

-.-

  General remarks and further material, if a diff-file exist, are in the
attachments.


-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.10-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=is_IS.iso88591, LC_CTYPE=is_IS.iso88591 (charmap=ISO-8859-1), 
LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: sysvinit (via /sbin/init)

-- no debconf information
Input file is getch.3ncurses

Output from "mandoc -T lint  getch.3ncurses": (shortened list)

      1 input text line longer than 80 bytes: with \fB\%echo\fP(3N...

-.-.

Output from "test-groff -mandoc -t -ww -z getch.3ncurses": (shortened list)

      1 trailing space in the line

-.-.

Find a repeated word

! 413 --> with

-.-.

Split lines longer than 80 characters into two or more lines.
Appropriate break points are the end of a sentence and a subordinate
clause; after punctuation marks.

Line 540, length 90

with \fB\%echo\fP(3NCURSES) and neither \fB\%cbreak\fP(3NCURSES) nor 
\fB\%raw\fP(3NCURSES)

-.-

Put a parenthetical sentence, phrase on a separate line,
if not part of a code.
See man-pages(7), item "semantic newline".

getch.3ncurses:60:get (or push back) characters from \fIcurses\fR terminal 
keyboard

-.-

Output from "test-groff  -mandoc -t -K utf8 -rF0 -rHY=0 -rCHECKSTYLE=10 -ww -z 
":

troff:<stdin>:386: warning: trailing space in the line

-.-.

Additionally:

Put data, that is wider than the header in a centered last column, in a
'T{...\nT}' block. 

Generally:

Tables:

  Table headers, that are wider than any data in the corresponding column,
do not need to be centered, so left adjustment (l, L) is sufficient.
--- getch.3ncurses      2025-01-31 02:51:48.898127431 +0000
+++ getch.3ncurses.new  2025-01-31 03:13:40.202734914 +0000
@@ -57,7 +57,9 @@
 \fB\%mvwgetch\fP,
 \fB\%ungetch\fP,
 \fB\%has_key\fP \-
-get (or push back) characters from \fIcurses\fR terminal keyboard
+get
+(or push back)
+characters from \fIcurses\fR terminal keyboard
 .SH SYNOPSIS
 .nf
 .B #include <curses.h>
@@ -410,7 +412,7 @@ to indicate that a mouse event is pendin
 see \fB\%mouse\fP(3NCURSES).
 Receipt of this code requires a window's keypad mode to be enabled,
 because to interpret mouse input
-(as with with \fI\%xterm\fP(1)'s mouse prototocol),
+(as with \fI\%xterm\fP(1)'s mouse prototocol),
 .I \%ncurses
 must read an escape sequence,
 as with a function key.
@@ -537,7 +539,9 @@ key stroke.
 .PP
 Use of
 .B \%wgetch
-with \fB\%echo\fP(3NCURSES) and neither \fB\%cbreak\fP(3NCURSES) nor 
\fB\%raw\fP(3NCURSES)
+with \fB\%echo\fP(3NCURSES)
+and neither \fB\%cbreak\fP(3NCURSES)
+nor \fB\%raw\fP(3NCURSES)
 is not well-defined.
 .PP
 Historically,
  Any program (person), that produces man pages, should check the output
for defects by using (both groff and nroff)

[gn]roff -mandoc -t -ww -b -z -K utf8  <man page>

  The same goes for man pages that are used as an input.

  For a style guide use

  mandoc -T lint

-.-

  Any "autogenerator" should check its products with the above mentioned
'groff', 'mandoc', and additionally with 'nroff ...'.

  It should also check its input files for too long (> 80) lines.

  This is just a simple quality control measure.

  The "autogenerator" may have to be corrected to get a better man page,
the source file may, and any additional file may.

  Common defects:

  Not removing trailing spaces (in in- and output).
  The reason for these trailing spaces should be found and eliminated.

  Not beginning each input sentence on a new line.
Line length should thus be reduced.

  The script "reportbug" uses 'quoted-printable' encoding when a line is
longer than 1024 characters in an 'ascii' file.

  See man-pages(7), item "semantic newline".

-.-

The difference between the formatted output of the original and patched file
can be seen with:

  nroff -mandoc <file1> > <out1>
  nroff -mandoc <file2> > <out2>
  diff -u <out1> <out2>

and for groff, using

\"printf '%s\n%s\n' '.kern 0' '.ss 12 0' | groff -mandoc -Z - \"

instead of 'nroff -mandoc'

  Add the option '-t', if the file contains a table.

  Read the output from 'diff -u ...' with 'less -R' or similar.

-.-.

  If 'man' (man-db) is used to check the manual for warnings,
the following must be set:

  The option \"-warnings=w\"

  The environmental variable:

export MAN_KEEP_STDERR=yes (or any non-empty value)

  or

  (produce only warnings):

export MANROFFOPT=\"-ww -b -z\"

export MAN_KEEP_STDERR=yes (or any non-empty value)

-.-

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