Commit 73a5430

KnightKnight

Knight

authored and

Knight

committed

Add solution

1 parent 0811622 commit 73a5430Copy full SHA for 73a5430

4 files changed

Lines changed: 40 additions & 0 deletions

File tree

Lines changed: 6 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,6 @@`
	`1`	`+[package]`
	`2`	`+name = "exercise"`
	`3`	`+version = "0.1.0"`
	`4`	`+authors = ["Knight <Knight42@mail.ustc.edu.cn>"]`
	`5`	`+`
	`6`	`+[dependencies]`

Lines changed: 4 additions & 0 deletions

Lines changed: 6 additions & 0 deletions

Lines changed: 24 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,24 @@`
	`1`	`+use std::borrow::Borrow;`
	`2`	`+use std::fs::File;`
	`3`	`+use std::io::{BufRead, BufReader};`
	`4`	`+`
	`5`	`+fn parse<I>(lines: I)`
	`6`	`+ where I: IntoIterator, I::Item: Borrow<str>`
	`7`	`+{`
	`8`	`+ for line in lines {`
	`9`	`+ println!("{}", line.borrow());`
	`10`	`+ }`
	`11`	`+}`
	`12`	`+`
	`13`	`+pub fn demo(path: &str) {`
	`14`	`+ if path.is_empty() {`
	`15`	`+ println!("==== Parsing long string ====");`
	`16`	`+ let content = "some\nlong\ntext";`
	`17`	`+ parse(content.lines());`
	`18`	`+ } else {`
	`19`	`+ println!("==== Parsing text file ====");`
	`20`	`+ let f = File::open(path).unwrap();`
	`21`	`+ let b = BufReader::new(f);`
	`22`	`+ parse(b.lines().map(\|l\| l.unwrap_or("".to_owned())));`
	`23`	`+ }`
	`24`	`+}`

Comments

(0)