Would it be possible to add an option for the indent size for the format tool?

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1

Would it be possible to add an option for the indent size for the format tool?
with possibly a default of “2”

Reason: I’m having difficulties to read code whose indentations are smaller than 4 characters.

for instance:

crystal tool format -4 my file.cr
crystal tool format -2 my file.cr

Thanks.

2

Adding the ability to configure the formatter has been historically rejected. See Add configuration for Crystal format tool · Issue #8366 · crystal-lang/crystal · GitHub. So the short answer would be yes, but not likely to happen.

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3

Thanks.

I have written a hack of my own (a wrapper around the formatter which doubles the indent).

So, basically, I can use it for my own use, and revert to the standard for publication on GitHub. :slight_smile:

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4

I feel like this kind of visual enhancement could be provided by a text editor.

1 Like
5

This is what I use for the moment:
It’s a bit silly, but it works.


def doubleSpace(line : String) : String
    start = ""
    stop = ""
    beyond_first_char = false
    line.each_char do |c|
        if c.ascii_whitespace? && beyond_first_char==false
            start = start + c
        else
            beyond_first_char = true
            stop = stop + c
        end
    end
    newline = start * 2 + stop
end

# - - -
PATH = "$HOMEBREW_PREFIX/bin/"
cmd = `#{PATH}crystal tool format #{ARGV[0]}`
puts cmd

formatted = IO::Memory.new
File.each_line(ARGV[0]) do |line|
    formatted << doubleSpace(line) << "\n"
end

output = "%.cr"
# Backup original file
`cp #{ARGV[0]} %.cr`

# Write formateted file 
f_out  = File.open(ARGV[0], "w")
f_out.write(formatted.to_slice)
f_out.close