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Add a %val{selection_count} expansion

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This commit is contained in:
Olivier Perret 2022-11-04 19:16:38 +01:00
parent dcdafdea77
commit 84379f4466
2 changed files with 8 additions and 0 deletions
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4
doc/pages/expansions.asciidoc
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@ -373,6 +373,10 @@ The following expansions are supported (with required context _in italics_):
_in window scope_ +
unquoted list of the lengths (in codepoints) of the selections
*%val{selection_count}*::
_in window scope_ +
the number of selections
*%val{session}*::
name of the current session

4
src/main.cc
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@ -349,6 +349,10 @@ static const EnvVarDesc builtin_env_vars[] = { {
transform([&](const Selection& s) -> String {
return to_string(char_length(context.buffer(), s));
}) | gather<Vector<String>>(); }
}, {
"selection_count", false,
[](StringView name, const Context& context) -> Vector<String>
{ return {to_string(context.selections().size())}; }
}, {
"window_width", false,
[](StringView name, const Context& context) -> Vector<String>