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textwrap 0.12.1

Textwrap is a library for word wrapping, indenting, and dedenting strings. You can use it to format strings (such as help and error messages) for display in commandline applications. It is designed to be efficient and handle Unicode characters correctly.
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# Changelog

This file lists the most important changes made in each release of
`textwrap`.

## Version 0.12.1 — July 3rd, 2020

This is a bugfix release.

* Fixed [#176][issue-176]: Mention compile-time wrapping by linking to
  the [`textwrap-macros` crate].
* Fixed [#193][issue-193]: Wrapping with `break_words(false)` was
  broken and would cause extra whitespace to be inserted when words
  were longer than the line width.

## Version 0.12.0 — June 26th, 2020

The code has been updated to the [Rust 2018 edition][rust-2018] and
each new release of `textwrap` will only support the latest stable
version of Rust. Trying to support older Rust versions is a fool's
errand: our dependencies keep releasing new patch versions that
require newer and newer versions of Rust.

The `term_size` feature has been replaced by `terminal_size`. The API
is unchanged, it is just the name of the Cargo feature that changed.

The `hyphenation` feature now only embeds the hyphenation patterns for
US-English. This slims down the dependency.

* Fixed [#140][issue-140]: Ignore ANSI escape sequences.
* Fixed [#158][issue-158]: Unintended wrapping when using external splitter.
* Fixed [#177][issue-177]: Update examples to the 2018 edition.

## Version 0.11.0 — December 9th, 2018

Due to our dependencies bumping their minimum supported version of
Rust, the minimum version of Rust we test against is now 1.22.0.

* Merged [#141][issue-141]: Fix `dedent` handling of empty lines and
  trailing newlines. Thanks @bbqsrc!
* Fixed [#151][issue-151]: Release of version with hyphenation 0.7.

## Version 0.10.0 — April 28th, 2018

Due to our dependencies bumping their minimum supported version of
Rust, the minimum version of Rust we test against is now 1.17.0.

* Fixed [#99][issue-99]: Word broken even though it would fit on line.
* Fixed [#107][issue-107]: Automatic hyphenation is off by one.
* Fixed [#122][issue-122]: Take newlines into account when wrapping.
* Fixed [#129][issue-129]: Panic on string with em-dash.

## Version 0.9.0 — October 5th, 2017

The dependency on `term_size` is now optional, and by default this
feature is not enabled. This is a *breaking change* for users of
`Wrapper::with_termwidth`. Enable the `term_size` feature to restore
the old functionality.

Added a regression test for the case where `width` is set to
`usize::MAX`, thanks @Fraser999! All public structs now implement
`Debug`, thanks @hcpl!

* Fixed [#101][issue-101]: Make `term_size` an optional dependency.

## Version 0.8.0 — September 4th, 2017

The `Wrapper` stuct is now generic over the type of word splitter
being used. This means less boxing and a nicer API. The
`Wrapper::word_splitter` method has been removed. This is a *breaking
API change* if you used the method to change the word splitter.

The `Wrapper` struct has two new methods that will wrap the input text
lazily: `Wrapper::wrap_iter` and `Wrapper::into_wrap_iter`. Use those
if you will be iterating over the wrapped lines one by one.

* Fixed [#59][issue-59]: `wrap` could return an iterator. Thanks
  @hcpl!
* Fixed [#81][issue-81]: Set `html_root_url`.

## Version 0.7.0 — July 20th, 2017

Version 0.7.0 changes the return type of `Wrapper::wrap` from
`Vec<String>` to `Vec<Cow<'a, str>>`. This means that the output lines
borrow data from the input string. This is a *breaking API change* if
you relied on the exact return type of `Wrapper::wrap`. Callers of the
`textwrap::fill` convenience function will see no breakage.

The above change and other optimizations makes version 0.7.0 roughly
15-30% faster than version 0.6.0.

The `squeeze_whitespace` option has been removed since it was
complicating the above optimization. Let us know if this option is
important for you so we can provide a work around.

* Fixed [#58][issue-58]: Add a "fast_wrap" function.
* Fixed [#61][issue-61]: Documentation errors.

## Version 0.6.0 — May 22nd, 2017

Version 0.6.0 adds builder methods to `Wrapper` for easy one-line
initialization and configuration:

```rust
let wrapper = Wrapper::new(60).break_words(false);
```

It also add a new `NoHyphenation` word splitter that will never split
words, not even at existing hyphens.

* Fixed [#28][issue-28]: Support not squeezing whitespace.

## Version 0.5.0 — May 15th, 2017

Version 0.5.0 has *breaking API changes*. However, this only affects
code using the hyphenation feature. The feature is now optional, so
you will first need to enable the `hyphenation` feature as described
above. Afterwards, please change your code from
```rust
wrapper.corpus = Some(&corpus);
```
to
```rust
wrapper.splitter = Box::new(corpus);
```

Other changes include optimizations, so version 0.5.0 is roughly
10-15% faster than version 0.4.0.

* Fixed [#19][issue-19]: Add support for finding terminal size.
* Fixed [#25][issue-25]: Handle words longer than `self.width`.
* Fixed [#26][issue-26]: Support custom indentation.
* Fixed [#36][issue-36]: Support building without `hyphenation`.
* Fixed [#39][issue-39]: Respect non-breaking spaces.

## Version 0.4.0 — January 24th, 2017

Documented complexities and tested these via `cargo bench`.

* Fixed [#13][issue-13]: Immediatedly add word if it fits.
* Fixed [#14][issue-14]: Avoid splitting on initial hyphens.

## Version 0.3.0 — January 7th, 2017

Added support for automatic hyphenation.

## Version 0.2.0 — December 28th, 2016

Introduced `Wrapper` struct. Added support for wrapping on hyphens.

## Version 0.1.0 — December 17th, 2016

First public release with support for wrapping strings on whitespace.

[rust-2018]: https://doc.rust-lang.org/edition-guide/rust-2018/
[`textwrap-macros` crate]: https://crates.io/crates/textwrap-macros

[issue-13]: https://github.com/mgeisler/textwrap/issues/13
[issue-14]: https://github.com/mgeisler/textwrap/issues/14
[issue-19]: https://github.com/mgeisler/textwrap/issues/19
[issue-25]: https://github.com/mgeisler/textwrap/issues/25
[issue-26]: https://github.com/mgeisler/textwrap/issues/26
[issue-28]: https://github.com/mgeisler/textwrap/issues/28
[issue-36]: https://github.com/mgeisler/textwrap/issues/36
[issue-39]: https://github.com/mgeisler/textwrap/issues/39
[issue-58]: https://github.com/mgeisler/textwrap/issues/58
[issue-59]: https://github.com/mgeisler/textwrap/issues/59
[issue-61]: https://github.com/mgeisler/textwrap/issues/61
[issue-81]: https://github.com/mgeisler/textwrap/issues/81
[issue-99]: https://github.com/mgeisler/textwrap/issues/99
[issue-101]: https://github.com/mgeisler/textwrap/issues/101
[issue-107]: https://github.com/mgeisler/textwrap/issues/107
[issue-122]: https://github.com/mgeisler/textwrap/issues/122
[issue-129]: https://github.com/mgeisler/textwrap/issues/129
[issue-140]: https://github.com/mgeisler/textwrap/issues/140
[issue-141]: https://github.com/mgeisler/textwrap/issues/141
[issue-151]: https://github.com/mgeisler/textwrap/issues/151
[issue-158]: https://github.com/mgeisler/textwrap/issues/158
[issue-177]: https://github.com/mgeisler/textwrap/issues/177
[issue-193]: https://github.com/mgeisler/textwrap/issues/193