mirror of
https://github.com/fish-shell/fish-shell
synced 2024-12-27 21:33:09 +00:00
94 lines
2.7 KiB
Fish
94 lines
2.7 KiB
Fish
|
|
#
|
|
# help should use 'open' to find a suitable browser, but only
|
|
# if there is a mime database _and_ DISPLAY is set, since the
|
|
# browser will most likely be graphical. Since most systems which
|
|
# have a mime databe also have the htmlview program, this is mostly a
|
|
# theoretical problem.
|
|
#
|
|
|
|
function help -d (N_ "Show help for the fish shell")
|
|
|
|
# Declare variables to set correct scope
|
|
set -l fish_browser
|
|
set -l fish_browser_bg
|
|
|
|
set -l h syntax completion editor job-control todo bugs history killring help
|
|
set h $h color prompt title variables builtin-overview changes expand
|
|
set h $h expand-variable expand-home expand-brace expand-wildcard
|
|
set -l help_topics $h expand-command-substitution expand-process
|
|
|
|
#
|
|
# Find a suitable browser for viewing the help pages. This is needed
|
|
# by the help function defined below.
|
|
#
|
|
set -l graphical_browsers htmlview x-www-browser firefox galeon mozilla konqueror epiphany opera netscape
|
|
set -l text_browsers htmlview www-browser links elinks lynx w3m
|
|
|
|
if test $BROWSER
|
|
# User has manualy set a preferred browser, so we respect that
|
|
set fish_browser $BROWSER
|
|
|
|
# If browser is known to be graphical, put into background
|
|
if contains -- $BROWSER $graphical_browsers
|
|
set fish_browser_bg 1
|
|
end
|
|
else
|
|
# Check for a text-based browser.
|
|
for i in $text_browsers
|
|
if type -f $i >/dev/null
|
|
set fish_browser $i
|
|
break
|
|
end
|
|
end
|
|
|
|
# If we are in a graphical environment, check if there is a graphical
|
|
# browser to use instead.
|
|
if test "$DISPLAY" -a \( "$XAUTHORITY" = "$HOME/.Xauthority" -o "$XAUTHORITY" = "" \)
|
|
for i in $graphical_browsers
|
|
if type -f $i >/dev/null
|
|
set fish_browser $i
|
|
set fish_browser_bg 1
|
|
break
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
if test -z $fish_browser
|
|
printf (_ '%s: Could not find a web browser.\n') help
|
|
printf (_ 'Please set the variable $BROWSER to a suitable browser and try again\n\n')
|
|
return 1
|
|
end
|
|
|
|
set fish_help_item $argv[1]
|
|
|
|
switch "$fish_help_item"
|
|
case ""
|
|
set fish_help_page index.html
|
|
case "."
|
|
set fish_help_page "builtins.html\#source"
|
|
case difference
|
|
set fish_help_page difference.html
|
|
case globbing
|
|
set fish_help_page "index.html\#expand"
|
|
case (builtin -n)
|
|
set fish_help_page "builtins.html\#$fish_help_item"
|
|
case contains count dirh dirs help mimedb nextd open popd prevd pushd set_color tokenize psub umask type vared
|
|
set fish_help_page "commands.html\#$fish_help_item"
|
|
case $help_topics
|
|
set fish_help_page "index.html\#$fish_help_item"
|
|
case "*"
|
|
if type -f $fish_help_item >/dev/null
|
|
man $fish_help_item
|
|
return
|
|
end
|
|
set fish_help_page "index.html"
|
|
end
|
|
|
|
if test $fish_browser_bg
|
|
eval $fish_browser file://$__fish_help_dir/$fish_help_page \&
|
|
else
|
|
eval $fish_browser file://$__fish_help_dir/$fish_help_page
|
|
end
|
|
end
|