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Merge pull request#7 from theindigamer/add-emoji-example

Add a possible issue to the README.

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Lines changed: 21 additions & 2 deletions

Original file line number	Diff line number	Diff line change
`@@ -1,8 +1,9 @@`
`1`	`1`	`#unicode-width`
`2`	`2`
`3`	`3`	Determine displayed width of`char` and`str` types according to
`4`		`-[Unicode Standard Annex#11](http://www.unicode.org/reports/tr11/)`
`5`		`-rules.`
	`4`	`+[Unicode Standard Annex#11][UAX11] rules.`
	`5`	`+`
	`6`	`+[UAX11]:(http://www.unicode.org/reports/tr11/)`
`6`	`7`
`7`	`8`	`[![Build Status](https://travis-ci.org/unicode-rs/unicode-width.svg)](https://travis-ci.org/unicode-rs/unicode-width)`
`8`	`9`
`@@ -23,6 +24,24 @@ fn main() {`
`23`	`24`	`}`
`24`	`25`	```
`25`	`26`
	`27`	`+NOTE: The computed width values may not match the actual rendered column`
	`28`	`+width. For example, the woman scientist emoji comprises of a woman emoji, a`
	`29`	`+zero-width joiner and a microscope emoji.`
	`30`	`+`
	`31`	+```rust
	`32`	`+externcrate unicode_width;`
	`33`	`+useunicode_width::UnicodeWidthStr;`
	`34`	`+`
	`35`	`+fnmain() {`
	`36`	`+assert_eq!(UnicodeWidthStr::width("👩"),2);// Woman`
	`37`	`+assert_eq!(UnicodeWidthStr::width("🔬"),2);// Microscope`
	`38`	`+assert_eq!(UnicodeWidthStr::width("👩‍🔬"),4);// Woman scientist`
	`39`	`+}`
	`40`	+```
	`41`	`+`
	`42`	`+See[Unicode Standard Annex#11](UAX11) for precise details on what is and isn't`
	`43`	`+covered by this crate.`
	`44`	`+`
`26`	`45`	`##features`
`27`	`46`
`28`	`47`	`unicode-width does not depend on libstd, so it can be used in crates`

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Original file line number	Diff line number	Diff line change
`@@ -108,6 +108,16 @@ fn test_str() {`
`108`	`108`	`assert_eq!("\u{2081}\u{2082}\u{2083}\u{2084}".width_cjk(),8);`
`109`	`109`	`}`
`110`	`110`
	`111`	`+#[test]`
	`112`	`+fntest_emoji(){`
	`113`	`+// Example from the README.`
	`114`	`+usesuper::UnicodeWidthStr;`
	`115`	`+`
	`116`	`+assert_eq!(UnicodeWidthStr::width("👩"),2);// Woman`
	`117`	`+assert_eq!(UnicodeWidthStr::width("🔬"),2);// Microscope`
	`118`	`+assert_eq!(UnicodeWidthStr::width("👩‍🔬"),4);// Woman scientist`
	`119`	`+}`
	`120`	`+`
`111`	`121`	`#[test]`
`112`	`122`	`fntest_char(){`
`113`	`123`	`usesuper::UnicodeWidthChar;`

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