Windows has no SIGWINCH and notifyOnResize was an empty TODO, so fzf
running in --height mode never noticed console size changes. Poll the
console screen buffer dimensions every 100ms and push a signal through
the same channel SIGWINCH uses on Unix. Full-screen mode is unaffected
as it goes through tcell which emits its own resize events.
* [tests] Test fzf's placeholders and escaping on practical commands
This tests some reasonable commands in fzf's templates (for commands,
previews, rebinds etc.), how are those commands escaped (backslashes,
double quotes), and documents if the output is executable in cmd.exe.
Both on Unix and Windows.
* [tests] Add testing of placeholder parsing and matching
Adds tests and bit of docs for the curly brackets placeholders in fzf's
template strings. Also tests the "placeholder" regex.
* [tests] Add more test cases of replacing placeholders focused on flags
Replacing placeholders in templates is already tested, this adds tests
that focus more on the parameters of placeholders - e.g. flags, token
ranges.
There is at least one test for each flag, not all combinations are
tested though.
* [refactoring] Split OS-specific function quoteEntry() to corresponding source file
This is minor refactoring, and also the function's test was made
crossplatform.
* [refactoring] Simplify replacePlaceholder function
Should be equivalent to the original, but has simpler structure.
Junegunn Choi