From 109658332a75ca91d6dc2bf573e0ab77fa5619ca Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Tue, 14 Aug 2018 15:03:27 +0300
Subject: Support raw strings in lexer

---
 crates/libsyntax2/src/lexer/strings.rs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

(limited to 'crates/libsyntax2/src/lexer')

diff --git a/crates/libsyntax2/src/lexer/strings.rs b/crates/libsyntax2/src/lexer/strings.rs
index e3704fbb3..fbae767e5 100644
--- a/crates/libsyntax2/src/lexer/strings.rs
+++ b/crates/libsyntax2/src/lexer/strings.rs
@@ -55,6 +55,11 @@ pub(crate) fn scan_string(ptr: &mut Ptr) {
 }
 
 pub(crate) fn scan_raw_string(ptr: &mut Ptr) {
+    let mut hashes = 0;
+    while ptr.next_is('#') {
+        hashes += 1;
+        ptr.bump();
+    }
     if !ptr.next_is('"') {
         return;
     }
@@ -62,7 +67,14 @@ pub(crate) fn scan_raw_string(ptr: &mut Ptr) {
 
     while let Some(c) = ptr.bump() {
         if c == '"' {
-            return;
+            let mut hashes_left = hashes;
+            while ptr.next_is('#') && hashes_left > 0{
+                hashes_left -= 1;
+                ptr.bump();
+            }
+            if hashes_left == 0 {
+                return;
+            }
         }
     }
 }
-- 
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