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Updated net.md to hide error_chain boilerplate by default
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Author: budziq

src/net.md

@@ -30,17 +30,17 @@ URL will print a message containing an explanation of what went wrong.
 
 ```rust
 extern crate url;
-
-#[macro_use]
-extern crate error_chain;
+#
+# #[macro_use]
+# extern crate error_chain;
 
 use url::Url;
-
-error_chain! {
-    foreign_links {
-        UrlParse(url::ParseError);
-    }
-}
+#
+# error_chain! {
+#    foreign_links {
+#        UrlParse(url::ParseError);
+#    }
+# }
 
 fn run() -> Result<()> {
     let s = "https://github.com/rust-lang/rust/issues?labels=E-easy&state=open";
@@ -50,8 +50,8 @@ fn run() -> Result<()> {
 
     Ok(())
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 [ex-url-base]: #ex-url-base
@@ -64,18 +64,18 @@ quick_main!(run);
 extern crate url;
 
 use url::Url;
-
-#[macro_use]
-extern crate error_chain;
-
-error_chain! {
-    foreign_links {
-        UrlParse(url::ParseError);
-    }
-    errors {
-        CannotBeABase
-    }
-}
+#
+# #[macro_use]
+# extern crate error_chain;
+#
+# error_chain! {
+#    foreign_links {
+#        UrlParse(url::ParseError);
+#    }
+#    errors {
+#        CannotBeABase
+#    }
+# }
 
 fn run() -> Result<()> {
     let full = "https://github.com/rust-lang/cargo?asdf";
@@ -108,8 +108,8 @@ fn base_url(mut url: Url) -> Result<Url> {
 
     Ok(url)
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 [ex-url-new-from-base]: #ex-url-new-from-base
@@ -122,17 +122,17 @@ The [`join`] method creates a new URL from a base and relative path.
 
 ```rust
 extern crate url;
-
-#[macro_use]
-extern crate error_chain;
+#
+# #[macro_use]
+# extern crate error_chain;
 
 use url::Url;
-
-error_chain! {
-    foreign_links {
-        UrlParse(url::ParseError);
-    }
-}
+#
+# error_chain! {
+#    foreign_links {
+#        UrlParse(url::ParseError);
+#    }
+# }
 
 fn run() -> Result<()> {
     let path = "/rust-lang/cargo";
@@ -154,8 +154,8 @@ fn build_github_url(path: &str) -> Result<Url> {
 
     Ok(joined)
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 [ex-url-origin]: #ex-url-origin
@@ -170,16 +170,16 @@ it represents.
 ```rust
 extern crate url;
 
-#[macro_use]
-extern crate error_chain;
+# #[macro_use]
+# extern crate error_chain;
 
 use url::{Url, Host};
 
-error_chain! {
-    foreign_links {
-        UrlParse(url::ParseError);
-    }
-}
+# error_chain! {
+#    foreign_links {
+#        UrlParse(url::ParseError);
+#    }
+# }
 
 fn run() -> Result<()> {
     let s = "ftp://rust-lang.org/examples";
@@ -193,26 +193,26 @@ fn run() -> Result<()> {
 
     Ok(())
 }
-
-quick_main!(run);
+# 
+# quick_main!(run); // fn main()
 ```
 
 The same result can be obtained using the [`origin`] method as well.
 
 ```rust
 extern crate url;
 
-#[macro_use]
-extern crate error_chain;
-
+# #[macro_use]
+# extern crate error_chain;
+#
 use url::{Url, Origin, Host};
 
-error_chain! {
-    foreign_links {
-        UrlParse(url::ParseError);
-    }
-}
-
+# error_chain! {
+#    foreign_links {
+#        UrlParse(url::ParseError);
+#    }
+# }
+#
 fn run() -> Result<()> {
     let s = "ftp://rust-lang.org/examples";
 
@@ -229,8 +229,8 @@ fn run() -> Result<()> {
 
     Ok(())
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 [ex-url-rm-frag]: #ex-url-rm-frag
@@ -243,26 +243,26 @@ Once [`Url`] is parsed it can be sliced with [`url::Position`] to strip unneeded
 
 ```rust
 extern crate url;
-
-#[macro_use]
-extern crate error_chain;
+#
+# #[macro_use]
+# extern crate error_chain;
 
 use url::{Url, Position};
-
-error_chain! {
-    foreign_links {
-        UrlParse(url::ParseError);
-    }
-}
+#
+# error_chain! {
+#    foreign_links {
+#        UrlParse(url::ParseError);
+#    }
+# }
 
 fn run() -> Result<()> {
     let parsed = Url::parse("https://github.com/rust-lang/rust/issues?labels=E-easy&state=open")?;
     let cleaned: &str = &parsed[..Position::AfterPath];
     println!("cleaned: {}", cleaned);
     Ok(())
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 [ex-url-basic]: #ex-url-basic
@@ -277,17 +277,17 @@ status and headers are printed. HTTP response body is read into an allocated [`S
 
 ```rust,no_run
 extern crate reqwest;
-#[macro_use]
-extern crate error_chain;
+# #[macro_use]
+# extern crate error_chain;
 
 use std::io::Read;
 
-error_chain! {
-    foreign_links {
-        Io(std::io::Error);
-        HttpReqest(reqwest::Error);
-    }
-}
+# error_chain! {
+#    foreign_links {
+#        Io(std::io::Error);
+#        HttpReqest(reqwest::Error);
+#    }
+# }
 
 fn run() -> Result<()> {
     let mut res = reqwest::get("http://httpbin.org/get")?;
@@ -300,8 +300,8 @@ fn run() -> Result<()> {
 
     Ok(())
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 [ex-url-download]: #ex-url-download
@@ -316,21 +316,21 @@ Target [`File`] with name obtained from [`Response::url`] is created within [`Te
 and downloaded data is copied into it with [`io::copy`]. The temporary directory is implicitly removed on `run` function return.
 
 ```rust,no_run
-#[macro_use]
-extern crate error_chain;
+# #[macro_use]
+# extern crate error_chain;
 extern crate reqwest;
 extern crate tempdir;
 
 use std::io::copy;
 use std::fs::File;
 use tempdir::TempDir;
-
-error_chain! {
-    foreign_links {
-        Io(std::io::Error);
-        HttpReqest(reqwest::Error);
-    }
-}
+#
+# error_chain! {
+#    foreign_links {
+#        Io(std::io::Error);
+#        HttpReqest(reqwest::Error);
+#    }
+# }
 
 fn run() -> Result<()> {
     // create a temp dir with prefix "example"
@@ -358,8 +358,8 @@ fn run() -> Result<()> {
     // tmp_dir is implicitly removed
     Ok(())
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 [ex-rest-get]: #ex-rest-get
@@ -374,22 +374,22 @@ GitHub [stargazers API v3](https://developer.github.com/v3/activity/starring/#li
 #[macro_use]
 extern crate serde_derive;
 extern crate reqwest;
-
-#[macro_use]
-extern crate error_chain;
+#
+# #[macro_use]
+# extern crate error_chain;
 
 #[derive(Deserialize, Debug)]
 struct User {
     login: String,
     id: u32,
     // remaining fields not deserialized for brevity
 }
-
-error_chain! {
-    foreign_links {
-        Reqwest(reqwest::Error);
-    }
-}
+#
+# error_chain! {
+#    foreign_links {
+#        Reqwest(reqwest::Error);
+#    }
+# }
 
 fn run() -> Result<()> {
     let request_url = format!("https://api.github.com/repos/{owner}/{repo}/stargazers",
@@ -402,8 +402,8 @@ fn run() -> Result<()> {
     println!("{:?}", users);
     Ok(())
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 [ex-rest-post]: #ex-rest-post
@@ -425,18 +425,17 @@ extern crate reqwest;
 extern crate serde_derive;
 #[macro_use]
 extern crate serde_json;
-
-#[macro_use]
-extern crate error_chain;
+# #[macro_use]
+# extern crate error_chain;
 
 use std::env;
-
-error_chain! {
-    foreign_links {
-        EnvVar(env::VarError);
-        HttpReqest(reqwest::Error);
-    }
-}
+#
+# error_chain! {
+#   foreign_links {
+#       EnvVar(env::VarError);
+#       HttpReqest(reqwest::Error);
+#   }
+# }
 
 #[derive(Deserialize, Debug)]
 struct Gist {
@@ -482,8 +481,8 @@ fn run() -> Result<()> {
     println!("Gist {} deleted! Status code: {}",gist.id, response.status());
     Ok(())
 }
-
-quick_main!(run);
+#
+# quick_main!(run); // fn main()
 ```
 
 <!-- Categories -->

theme/book.css

@@ -833,6 +833,6 @@ table td:nth-child(2){
   width: 20%;
 }
 
-pre > .buttons {
+i.fa.fa-play.play-button {
   display: none;
 }