From 7b99aee552d95f0df4d4550ff2dec873a963e620 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sun, 6 Dec 2015 11:01:45 +0100
Subject: [PATCH] Rewrite markdown parsing, so we can extract links and quotes
 (and maybe more)

---
 src/module/helpers/content.rs | 75 +++++++++++++++++++++++++----------
 1 file changed, 55 insertions(+), 20 deletions(-)

diff --git a/src/module/helpers/content.rs b/src/module/helpers/content.rs
index 64054e37..a082763b 100644
--- a/src/module/helpers/content.rs
+++ b/src/module/helpers/content.rs
@@ -1,25 +1,60 @@
-
-pub fn extract_links(s: &String) -> Vec<String> {
+mod markdown {
     use pulldown_cmark::Parser;
     use pulldown_cmark::Event;
     use pulldown_cmark::Tag;
 
-    Parser::new(&s[..])
-        .filter_map(|e| {
-            match e {
-                Event::Start(t) => Some(t),
-                Event::End(t)   => Some(t),
-                _               => None
-            }
-        })
-        .filter_map(|tag| {
-            match tag {
-                Tag::Link(url, text) => Some((url, text)),
-                _               => None
-            }
-        })
-        .map(|(url, text)| {
-            text.into_owned()
-        }).collect::<Vec<String>>()
-}
+    pub struct MarkdownParser<'a> {
+        text: &'a String
+    }
 
+    impl<'a> MarkdownParser<'a> {
+
+        pub fn new(s: &'a String) -> MarkdownParser {
+            MarkdownParser {
+                text: s
+            }
+        }
+
+        pub fn links(&self) -> Vec<String> {
+            Parser::new(&self.text[..])
+                .filter_map(|e| {
+                    match e {
+                        Event::Start(t) => Some(t),
+                        Event::End(t)   => Some(t),
+                        _               => None
+                    }
+                })
+                .filter_map(|tag| {
+                    match tag {
+                        Tag::Link(url, text) => Some((url, text)),
+                        _               => None
+                    }
+                })
+                .map(|(url, text)| {
+                    text.into_owned()
+                }).collect::<Vec<String>>()
+        }
+
+        pub fn codeblocks(&self) -> Vec<String> {
+            Parser::new(&self.text[..])
+                .filter_map(|e| {
+                    match e {
+                        Event::Start(t) => Some(t),
+                        Event::End(t)   => Some(t),
+                        _               => None
+                    }
+                })
+                .filter_map(|tag| {
+                    match tag {
+                        Tag::CodeBlock(text)    => Some(text),
+                        _                       => None
+                    }
+                })
+                .map(|text| {
+                    text.into_owned()
+                }).collect::<Vec<String>>()
+        }
+
+    }
+
+}