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mirror of https://github.com/mawww/kakoune.git synced 2024-12-01 08:23:05 +03:00
kakoune/rc/core/doc.kak
Frank LENORMAND 1cfee17a16 rc man/doc: Don't show groff warnings
Sometimes the implementation of `man` will display errors, e.g.

```
<standard input>:4808: warning [p 54, 13.2i]: can't break line
```

Those errors are harmless but are still reported on the debug buffer,
so we hide them by redirecting the standard error stream to /dev/null.
2017-09-30 08:23:10 +03:00

57 lines
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decl -docstring "name of the client in which documentation is to be displayed" \
str docsclient
def -hidden -params 1..2 doc-open %{
%sh{
manout=$(mktemp "${TMPDIR:-/tmp}"/kak-man-XXXXXX)
# This option is handled by the `man-db` implementation
export MANWIDTH=${kak_window_width}
if man "$1" > "${manout}" 2>/dev/null; then
readonly manout_noescape=$(mktemp "${TMPDIR:-/tmp}"/kak-man-XXXXXX)
sed -e $(printf 's/.\x8//g') -e 's,\x1B\[[0-9;]*[a-zA-Z],,g' "${manout}" > "${manout_noescape}"
mv -f "${manout_noescape}" "${manout}"
printf %s\\n "
edit! -scratch '*doc*'
exec |cat<space>${manout}<ret>gg
nop %sh{rm ${manout}}
set buffer filetype man
remove-hooks window man-hooks
"
if [ $# -gt 1 ]; then
needle=$(printf %s\\n "$2" | sed 's,<,<lt>,g')
printf %s\\n "try %{ exec '%<a-s><a-k>(?i)^\h+[^\n]*?\Q${needle}\E<ret>\'' } catch %{ exec <space>gg }"
fi
else
printf %s\\n "echo -markup %{{Error}doc '$@' failed: see *debug* buffer for details}"
rm ${manout}
fi
}
}
def -params 1..2 \
-shell-candidates %{
find "${kak_runtime}/doc/" -type f -name "*.gz" | while read l; do
basename "${l%.*}"
done
} \
doc -docstring %{doc <topic> [<keyword>]: open a buffer containing documentation about a given topic
An optional keyword argument can be passed to the function, which will be automatically selected in the documentation} %{
%sh{
readonly PATH_DOC="${kak_runtime}/doc/${1}.gz"
shift
if [ -f "${PATH_DOC}" ]; then
printf %s\\n "eval -try-client %opt{docsclient} doc-open ${PATH_DOC} $@"
else
printf %s\\n "echo -markup '{Error}No such doc file: ${PATH_DOC}'"
fi
}
}
alias global help doc