From 81759dd51eb1f6f9a7dc8af9b2b8126ff7dfab24 Mon Sep 17 00:00:00 2001
From: Jonas Maier <jonas@x77.dev>
Date: Sun, 31 May 2026 19:21:44 +0200
Subject: regex based case statements

---
 src/parse/mod.rs | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

(limited to 'src/parse/mod.rs')

diff --git a/src/parse/mod.rs b/src/parse/mod.rs
index 68a5e56..5815730 100644
--- a/src/parse/mod.rs
+++ b/src/parse/mod.rs
@@ -7,6 +7,8 @@ mod test;
 
 mod span;
 
+pub mod regex;
+
 pub trait Stage: PartialEq {
     type Str: std::fmt::Debug + Clone + PartialEq;
 }
@@ -1844,7 +1846,7 @@ impl Parse for Pipes<PreExpansion> {
 
 #[derive(Debug, Clone, PartialEq)]
 pub struct CaseBranch {
-    pub pattern: BString,
+    pub pattern: regex::Pattern,
     pub block: Block,
 }
 
@@ -1855,10 +1857,8 @@ pub struct Case<T: Stage> {
 }
 
 impl CmdDisplay for CaseBranch {
-    fn cdisplay(&self, w: &mut dyn std::io::Write) -> std::io::Result<()> {
-        write!(w, "cbranch(b\"{}\", ", self.pattern.escape_ascii())?;
-        self.block.cdisplay(w)?;
-        write!(w, ")")
+    fn cdisplay(&self, _w: &mut dyn std::io::Write) -> std::io::Result<()> {
+        todo!()
     }
 }
 
@@ -1875,14 +1875,7 @@ impl Parse for CaseBranch {
     fn parse(b: &mut Cursor<'_>) -> Result<Self> {
         b.spaces();
 
-        let mut pattern = Vec::new();
-        while b.has() && b.peek() != b'{' {
-            pattern.push(b.adv());
-        }
-        while let Some(b' ' | b'\n' | b'\t' | b'\r') = pattern.last() {
-            pattern.pop();
-        }
-
+        let pattern = regex::Pattern::parse(b)?;
         let block = Block::parse(b)?;
 
         Ok(Self { pattern, block })
-- 
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