forked from clap-rs/clap
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
The immediate benefit is binary size but this also makes us more flexible on the implementation, like allowing wrapping of `StyledStr`. This removed 12 KiB from `.text` This helps towards clap-rs#1365 and probably clap-rs#2037
- Loading branch information
Showing
7 changed files
with
264 additions
and
47 deletions.
There are no files selected for viewing
Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.
Oops, something went wrong.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1,113 @@ | ||
| //! Fork of `textwrap` crate | ||
| //! | ||
| //! Benefits of forking: | ||
| //! - Pull in only what we need rather than relying on the compiler to remove what we don't need | ||
| //! - `LineWrapper` is able to incrementally wrap which will help with `StyledStr | ||
|
|
||
| pub(crate) mod core; | ||
| pub(crate) mod word_separators; | ||
| pub(crate) mod wrap_algorithms; | ||
|
|
||
| pub(crate) fn wrap(content: &str, hard_width: usize) -> String { | ||
| let mut wrapper = wrap_algorithms::LineWrapper::new(hard_width); | ||
| let mut total = Vec::new(); | ||
| for line in content.split_inclusive('\n') { | ||
| wrapper.reset(); | ||
| let line = word_separators::find_words_ascii_space(line).collect::<Vec<_>>(); | ||
| total.extend(wrapper.wrap(line)); | ||
| } | ||
| total.join("") | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod test { | ||
| /// Compatibility shim to keep textwrap's tests | ||
| fn wrap(content: &str, hard_width: usize) -> Vec<String> { | ||
| super::wrap(content, hard_width) | ||
| .trim_end() | ||
| .split('\n') | ||
| .map(|s| s.to_owned()) | ||
| .collect::<Vec<_>>() | ||
| } | ||
|
|
||
| #[test] | ||
| fn no_wrap() { | ||
| assert_eq!(wrap("foo", 10), vec!["foo"]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn wrap_simple() { | ||
| assert_eq!(wrap("foo bar baz", 5), vec!["foo", "bar", "baz"]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn to_be_or_not() { | ||
| assert_eq!( | ||
| wrap("To be, or not to be, that is the question.", 10), | ||
| vec!["To be, or", "not to be,", "that is", "the", "question."] | ||
| ); | ||
| } | ||
|
|
||
| #[test] | ||
| fn multiple_words_on_first_line() { | ||
| assert_eq!(wrap("foo bar baz", 10), vec!["foo bar", "baz"]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn long_word() { | ||
| assert_eq!(wrap("foo", 0), vec!["foo"]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn long_words() { | ||
| assert_eq!(wrap("foo bar", 0), vec!["foo", "bar"]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn max_width() { | ||
| assert_eq!(wrap("foo bar", usize::MAX), vec!["foo bar"]); | ||
|
|
||
| let text = "Hello there! This is some English text. \ | ||
| It should not be wrapped given the extents below."; | ||
| assert_eq!(wrap(text, usize::MAX), vec![text]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn leading_whitespace() { | ||
| assert_eq!(wrap(" foo bar", 6), vec![" foo", "bar"]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn leading_whitespace_empty_first_line() { | ||
| // If there is no space for the first word, the first line | ||
| // will be empty. This is because the string is split into | ||
| // words like [" ", "foobar ", "baz"], which puts "foobar " on | ||
| // the second line. We never output trailing whitespace | ||
| assert_eq!(wrap(" foobar baz", 6), vec!["", "foobar", "baz"]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn trailing_whitespace() { | ||
| // Whitespace is only significant inside a line. After a line | ||
| // gets too long and is broken, the first word starts in | ||
| // column zero and is not indented. | ||
| assert_eq!(wrap("foo bar baz ", 5), vec!["foo", "bar", "baz"]); | ||
| } | ||
|
|
||
| #[test] | ||
| fn issue_99() { | ||
| // We did not reset the in_whitespace flag correctly and did | ||
| // not handle single-character words after a line break. | ||
| assert_eq!( | ||
| wrap("aaabbbccc x yyyzzzwww", 9), | ||
| vec!["aaabbbccc", "x", "yyyzzzwww"] | ||
| ); | ||
| } | ||
|
|
||
| #[test] | ||
| fn issue_129() { | ||
| // The dash is an em-dash which takes up four bytes. We used | ||
| // to panic since we tried to index into the character. | ||
| assert_eq!(wrap("x – x", 1), vec!["x", "–", "x"]); | ||
| } | ||
| } |
Oops, something went wrong.