mirror of
https://github.com/uutils/coreutils
synced 2024-12-16 08:12:39 +00:00
ac216c3d77
Note: for now, this version does not use Knuth-Plass,
but everything else is in place with "greedy" breaking.
All options (should) work, and performance is nearly
on par with GNU fmt.
Squashed commit of the following local commits:
commit ebc12f5e7d19d351ada9273ec0c42d66d3730431
commit 125fdabcb2a32de161c7a8b76c3e766a40ff9f76
commit dadd62acc093b5bd4bc94ad4f8a499d2663a7097
commit e436fdaade3876e92020c61a736eba54eb5ca0cf
commit bbc4f4f6ad749753efe9b2df871ddb257f33de4b
commit 12bc4ecb0c56c0d43515a111e9129a4bfaf36531
commit 2e693553ed9af59c53ee13026d19c9f82f2973fc
commit 9b15a130148d62dd6a1d2765848ddc4daf30c649
commit ea335eb2869afcc94709345118fab3fb2e612954
Merge: ee92573 23cc41d
commit 23cc41d188cb3134c04872fd77acb331d86a64ea
commit 2fa7c48133001d86da39feda04d870ff67e88400
commit eb71558ee46654b568adf167f194cb854bbf7056
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commit 8556d2a3467651ee7833ad800876af35a7dd5db7
commit a2e4bc3dc45e5f39b402e6fdd3e19edcea6d3c34
Merge: 0308884 439e65d
commit 03088844f1fd2faca6c3471230730136dd140f35
commit ac80d888649dd1311fdaa68400ea45d52b2e23ab
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commit 3dd71364cce9aaaa773fc88eb206aba31aa61390
33 lines
1.4 KiB
Rust
33 lines
1.4 KiB
Rust
/*
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* This file is part of `fmt` from the uutils coreutils package.
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*
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* (c) kwantam <kwantam@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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// break_simple implements the "tight" breaking algorithm: print words until
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// maxlength would be exceeded, then print a linebreak and indent and continue.
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// Note that any first line indent should already have been printed before
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// calling this function, and the length of said indent should be passed as
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// init_len
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pub fn break_simple<'a, T: Iterator<&'a str>>(s: &'a mut T, maxlen: uint, indent_str: &'a str, indent_len: uint, init_len: uint, uniform: bool, ostream: &mut Box<Writer>) -> uint {
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s.fold(init_len, |l, w| accum_words_simple(maxlen, indent_len, indent_str, ostream, uniform, l, w))
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}
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fn accum_words_simple(maxlen: uint, indent_len: uint, indent_str: &str, ostream: &mut Box<Writer>, uniform: bool, l: uint, w: &str) -> uint {
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let wlen = w.len();
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let lnew =
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if l + wlen > maxlen {
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silent_unwrap!(ostream.write("\n".as_bytes()));
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silent_unwrap!(ostream.write(indent_str.as_bytes()));
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indent_len
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} else {
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l
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};
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silent_unwrap!(ostream.write(w.as_bytes()));
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if uniform { silent_unwrap!(ostream.write(" ".as_bytes())); }
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lnew + wlen + 1
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}
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