fmt: implement Default for FmtOptions#4747
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In the latest push I adapted the defaults to match those of GNU fmt. |
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src/uu/fmt/src/fmt.rs
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| )); | ||
| } | ||
| fmt_opts.goal = cmp::min(fmt_opts.width * 94 / 100, fmt_opts.width - 3); | ||
| fmt_opts.goal = cmp::min(fmt_opts.width * 93 / 100, fmt_opts.width - 3); |
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would it be possible to move 93 into a const with a good variable name?
to make it more clear
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I hope it is more clear now.
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| }; | ||
| if !matches.get_flag(OPT_WIDTH) { | ||
| fmt_opts.width = cmp::max(fmt_opts.goal * 100 / 94, fmt_opts.goal + 3); | ||
| fmt_opts.width = cmp::max( |
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This doesn't really have anything to do with your change, but are we sure this is right?
I also think the way this is implemented is a bit strange, maybe it would be better in a match expression:
let width_opt = matches.get_one::<String>(OPT_WIDTH);
let goal_opt = matches.get_one::<String>(OPT_GOAL);
match (width_opt, goal_opt) {
(Some(width), Some(goal)) => {...},
...
}Maybe we can make a good-first-issue for someone to clean this up a bit.
| @@ -155,7 +169,10 @@ fn parse_arguments(args: impl uucore::Args) -> UResult<(Vec<String>, FmtOptions) | |||
| } | |||
| }; | |||
| if !matches.get_flag(OPT_WIDTH) { | |||
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Unrelated to your change, I'm getting a runtime error here because OPT_WIDTH is not marked as a flag in clap:
thread 'main' panicked at 'Mismatch between definition and access of `width`. Could not downcast to bool, need to downcast to alloc::string::String
', /home/terts/Programming/uutils/coreutils/src/uu/fmt/src/fmt.rs:171:21
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I already approved this, but consider this a second approval if the checks are now green (something was up in |
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This PR implements
DefaultforFmtOptions.I'm not sure whether the defaults for
widthandgoal, which is derived fromwidth, are correct. Or whether they differ from the ones used by GNU fmt on purpose. GNU fmt uses awidthof75as default, whereas we use79.