From 13cb719b87bcef41c4dd398f5a651ddb2b561e0d Mon Sep 17 00:00:00 2001
From: Ben Bridle <bridle.benjamin@gmail.com>
Date: Sun, 21 Apr 2024 13:57:03 +1200
Subject: Completely rewrite the library

---
 src/elements/line_element.rs | 61 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 src/elements/line_element.rs

(limited to 'src/elements/line_element.rs')

diff --git a/src/elements/line_element.rs b/src/elements/line_element.rs
new file mode 100644
index 0000000..cc47b4b
--- /dev/null
+++ b/src/elements/line_element.rs
@@ -0,0 +1,61 @@
+pub enum LineElement {
+    Normal(String),
+    Bold(String),
+    Italic(String),
+    Monospace(String),
+    Math(String),
+    InternalLink(String),
+    ExternalLink(ExternalLink),
+}
+
+impl LineElement {
+    /// Return only the character content, with none of the styling information.
+    pub fn as_plain_text(&self) -> &str {
+        match self {
+            LineElement::Normal(text) => text,
+            LineElement::Bold(text) => text,
+            LineElement::Italic(text) => text,
+            LineElement::Monospace(text) => text,
+            LineElement::Math(text) => text,
+            LineElement::InternalLink(label) => label,
+            LineElement::ExternalLink(ExternalLink { label, ..}) => label,
+        }
+    }
+}
+
+pub struct ExternalLink {
+    pub label: String,
+    pub target: String,
+}
+
+impl std::fmt::Display for LineElement {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+        let string = match self {
+            LineElement::Normal(text) => format!("{text}"),
+            LineElement::Bold(text) => format!("**{text}**"),
+            LineElement::Italic(text) => format!("_{text}_"),
+            LineElement::Monospace(text) => format!("`{text}`"),
+            LineElement::Math(text) => format!("${text}$"),
+            LineElement::InternalLink(text) => format!("[[{text}]]"),
+            LineElement::ExternalLink(ExternalLink { label, target }) => {
+                format!("[{label}]({target})") }
+        };
+        f.write_str(&string)
+    }
+}
+
+impl std::fmt::Debug for LineElement {
+    fn fmt(&self, f: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+        let string = match self {
+            LineElement::Normal(text) => format!("Normal ('{text}')"),
+            LineElement::Bold(text) => format!("Bold ('{text}')"),
+            LineElement::Italic(text) => format!("Italic ('{text}')"),
+            LineElement::Monospace(text) => format!("Monospace ('{text}')"),
+            LineElement::Math(text) => format!("Math ('{text}')"),
+            LineElement::InternalLink(text) => format!("InternalLink ('{text}')"),
+            LineElement::ExternalLink(ExternalLink { label, target }) => {
+                format!("ExternalLink (label:'{label}',  target:'{target}')") }
+        };
+        f.write_str(&string)
+    }
+}
-- 
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