Auto merge of #14837 - Veykril:rustc-lexer, r=Veykril

Support c string literals

1 files changed, 12 insertions, 1 deletions

diff --git a/crates/syntax/src/validation.rs b/crates/syntax/src/validation.rs
index 089ad74dadc..e0ec6a242ff 100644
--- a/crates/syntax/src/validation.rs
+++ b/crates/syntax/src/validation.rs
@@ -9,7 +9,7 @@ use rustc_lexer::unescape::{self, unescape_literal, Mode};
 
 use crate::{
     algo,
-    ast::{self, HasAttrs, HasVisibility},
+    ast::{self, HasAttrs, HasVisibility, IsString},
     match_ast, AstNode, SyntaxError,
     SyntaxKind::{CONST, FN, INT_NUMBER, TYPE_ALIAS},
     SyntaxNode, SyntaxToken, TextSize, T,
@@ -156,6 +156,17 @@ fn validate_literal(literal: ast::Literal, acc: &mut Vec<SyntaxError>) {
                 }
             }
         }
+        ast::LiteralKind::CString(s) => {
+            if !s.is_raw() {
+                if let Some(without_quotes) = unquote(text, 2, '"') {
+                    unescape_literal(without_quotes, Mode::ByteStr, &mut |range, char| {
+                        if let Err(err) = char {
+                            push_err(1, range.start, err);
+                        }
+                    });
+                }
+            }
+        }
         ast::LiteralKind::Char(_) => {
             if let Some(without_quotes) = unquote(text, 1, '\'') {
                 unescape_literal(without_quotes, Mode::Char, &mut |range, char| {