Re: [ITP] italic-man

[Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>]

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On 2019-08-09 13:31, Thomas Wolff wrote:
> Am 09.08.2019 um 20:56 schrieb Achim Gratz:
>> Jon Turney writes:
>>> This gets a GTG from me.
>>> I believe that according to our stated procedures additional approvals
>>> are required, because this package is unique to cygwin.
>> I'm not sure I remember correctly from when the discussion went on the
>> first time, but wasn't there some mumbling about this partly going into
>> groff?  If that's still the case, remind me what this would entail and
>> I'll look into it.
> There are multiple ways of activating the feature (also described in the man page).
> The previous strategy placed a shell script wrapper "groff" aside groff, so the
> groff script and groff.exe would coexist in /bin. This was tricky to install and
> particularly it reportedly did not survive a package update of groff.
> The new approach does not use this wrapper anymore. Instead it redirects nroff
> to the package-supplied iroff script by configuration in /etc/man_db.conf.

There's also use of the undocumented LESS_TERMCAP_... with GROFF_NO_SGR env vars
(see attached - must be sourced from profile or rc) to remap bold, underline,
etc. into italic and/or colour, or whatever else you want to change, in all less
output.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.

[-- Attachment #2: .LESS_TERMCAP --]
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#|/bin/sh
# .LESS_TERMCAP - set termcap properties  for man and other less paging
# What things in a manpage use which capabilities?
# man and less use:
# bold for headings, command synopses, and code font
# underline for proper names (for example, “termcap” and “terminfo” in the
# termcap manpage), variable names (“name”, “bp”, “id”, etc.), and type names
# in some manpages (such as dispatch_queue_create(3))
# standout for the prompt at the bottom
# It doesn’t seem like anything uses blinking.
#				termcap	terminfo  
#LESS_TERMCAP_ks=$(tput smkx)	# ks	smkx	make the keypad send commands
#LESS_TERMCAP_ke=$(tput rmkx)	# ke	rmkx	make the keypad send digits
#LESS_TERMCAP_vb=$(tput flash)	# vb	flash	emit visual bell
#LESS_TERMCAP_mb=$(tput blink)	# mb	blink	start blink
#LESS_TERMCAP_md=$(tput bold)	# md	bold	start bold
LESS_TERMCAP_md=$(tput bold)$(tput setaf 4)	# md	bold	set mode bold	4 set colour blue
#LESS_TERMCAP_mh=$(tput dim)	# mh	dim	mode half-bright
#LESS_TERMCAP_mr=$(tput rev)	# mr	rev	mode reverse video
#LESS_TERMCAP_me=$(tput sgr0)	# me	sgr0	reset attributes
#LESS_TERMCAP_so=$(tput smso)	# so	smso	start standout (reverse video)
#LESS_TERMCAP_se=$(tput rmso)	# se	rmso	stop standout
#LESS_TERMCAP_us=$(tput smul)	# us	smul	start underline
LESS_TERMCAP_us=$(tput sitm)$(tput setaf 6)	# us	smul	start underline
#LESS_TERMCAP_ue=$(tput rmul)	# ue	rmul	stop underline
LESS_TERMCAP_ue=$(tput ritm)$(tput sgr0)	# ue	rmul	stop underline
#LESS_TERMCAP_ZN=$(tput ssubm)	# ZN	ssubm	set subscript mode
#LESS_TERMCAP_ZV=$(tput rsubm)	# ZV	rsubm	reset subscript mode
#LESS_TERMCAP_ZO=$(tput ssupm)	# ZO	ssupm	set superscript mode
#LESS_TERMCAP_ZW=$(tput rsupm)	# ZW	rsupm	reset superscript mode
#LESS_TERMCAP_ZH=$(tput sitm)	# ZH	sitm	set italic mode
#LESS_TERMCAP_ZR=$(tput ritm)	# ZR	ritm	reset italic mode
#GROFF_NO_SGR=1			# for terminals
export					\
	LESS_TERMCAP_us LESS_TERMCAP_ue	\
	LESS_TERMCAP_md
#	LESS_TERMCAP_mb LESS_TERMCAP_md	\
#	LESS_TERMCAP_mr LESS_TERMCAP_mh	\
#	LESS_TERMCAP_me			\
#	LESS_TERMCAP_so LESS_TERMCAP_se	\
#	LESS_TERMCAP_ZN LESS_TERMCAP_ZV	\
#	LESS_TERMCAP_ZO LESS_TERMCAP_ZW	\
#	GROFF_NO_SGR