fish-shell/share/functions/__fish_complete_man.fish
Johannes Altmanninger 9c327b19a6 Fix extra or missing newlines at end of file in our fish scripts
New fish_indent does that too, so this will make any future reformatting
diffs smaller.

Done using either of:

	perl -pi -e 'undef $/; s/\n*$/\n/' share/**.fish
	kak -n -f '<a-/>\n*<ret>d' share/**.fish
2020-08-09 23:53:46 +02:00

102 lines
3.6 KiB
Fish

# macOS 10.15 "Catalina" has some major issues.
# The whatis database is non-existent, so apropos tries (and fails) to create it every time,
# which takes about half a second.
#
# So we disable this entirely in that case, unless the user has overridden the system
# `apropos` with their own, which presumably doesn't have the same problem.
if test (uname) = Darwin
set -l darwin_version (uname -r | string split .)
# macOS 15 is Darwin 19, this is an issue up to and including 10.15.3.
if test "$darwin_version[1]" = 19 -a "$darwin_version[2]" -le 3
set -l apropos (command -s apropos)
if test "$apropos" = /usr/bin/apropos
function __fish_complete_man
end
# (remember: exit when `source`ing only exits the file, not the shell)
exit
end
end
end
function __fish_complete_man
# Try to guess what section to search in. If we don't know, we
# use [^)]*, which should match any section.
set -l section ""
set -l token (commandline -ct)
set -l prev (commandline -poc)
set -e prev[1]
while set -q prev[1]
switch $prev[1]
case '-**'
case '*'
set section (string escape --style=regex $prev[1])
set section (string replace --all / \\/ $section)
end
set -e prev[1]
end
set -l exclude_fish_commands
# Only include fish commands when section is empty or 1
if test -z "$section" -o "$section" = 1
set -e exclude_fish_commands
end
set section $section"[^)]*"
# If we don't have a token but a section, list all pages for that section.
# Don't do it for all sections because that would be overwhelming.
if test -z "$token" -a "$section" != "[^)]*"
set token "."
end
if test -n "$token"
# Do the actual search
apropos $token 2>/dev/null | awk '
BEGIN { FS="[\t ]- "; OFS="\t"; }
# BSD/Darwin
/^[^( \t]+\('$section'\)/ {
split($1, pages, ", ");
for (i in pages) {
page = pages[i];
sub(/[ \t]+/, "", page);
paren = index(page, "(");
name = substr(page, 1, paren - 1);
sect = substr(page, paren + 1, length(page) - paren - 1);
print name, sect ": " $2;
}
}
# man-db
/^[^( \t]+ +\('$section'\)/ {
split($1, t, " ");
sect = substr(t[2], 2, length(t[2]) - 2);
print t[1], sect ": " $2;
}
# man-db RHEL 5 with [aliases]
/^[^( \t]+ +\[.*\] +\('$section'\)/ {
split($1, t, " ");
sect = substr(t[3], 2, length(t[3]) - 2);
print t[1], sect ": " $2;
}
# Solaris 11
# Does not display descriptions
# Solaris apropos outputs embedded backspace in descriptions
/^[0-9]+\. [^( \t]*\('$section'\) / {
split($1, t, " ")
paren = index(t[2], "(");
name = substr(t[2], 1, paren - 1);
sect = substr(t[2], paren + 1, length(t[2]) - paren - 1);
print name, sect
}
'
# Fish commands are not given by apropos
if not set -ql exclude_fish_commands
set -l files $__fish_data_dir/man/man1/*.1
string replace -r '.*/([^/]+)\.1$' '$1\t1: fish command' -- $files
end
else
return 1
end
return 0
end