From b07e1f81a68e3079a8038f49ed2b54238f68bb72 Mon Sep 17 00:00:00 2001
From: Dustin Spicuzza <dustin@virtualroadside.com>
Date: Sun, 23 Jul 2023 17:00:35 -0400
Subject: [PATCH] Discard line continuations

- Fixes #54
---
 cxxheaderparser/lexer.py |  7 ++++++-
 tests/test_enum.py       |  3 ---
 tests/test_misc.py       | 27 +++++++++++++++++++++++++++
 3 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/cxxheaderparser/lexer.py b/cxxheaderparser/lexer.py
index fab8311..2b91892 100644
--- a/cxxheaderparser/lexer.py
+++ b/cxxheaderparser/lexer.py
@@ -659,7 +659,12 @@ class LexerTokenStream(TokenStream):
             tokbuf.append(tok)
 
             if tok.type == "NEWLINE":
-                break
+                # detect/remove line continuations
+                if len(tokbuf) > 2 and tokbuf[-2].type == "\\":
+                    tokbuf.pop()
+                    tokbuf.pop()
+                else:
+                    break
 
             # detect/combine user defined literals
             if tok.type in udl_start:
diff --git a/tests/test_enum.py b/tests/test_enum.py
index b2fa002..015475a 100644
--- a/tests/test_enum.py
+++ b/tests/test_enum.py
@@ -116,17 +116,14 @@ def test_enum_w_multiline_expr() -> None:
                                     Token(value="<<"),
                                     Token(value="24"),
                                     Token(value="|"),
-                                    Token(value="\\"),
                                     Token(value="'A'"),
                                     Token(value="<<"),
                                     Token(value="16"),
                                     Token(value="|"),
-                                    Token(value="\\"),
                                     Token(value="'S'"),
                                     Token(value="<<"),
                                     Token(value="8"),
                                     Token(value="|"),
-                                    Token(value="\\"),
                                     Token(value="'H'"),
                                     Token(value=")"),
                                 ]
diff --git a/tests/test_misc.py b/tests/test_misc.py
index 81d4a0e..355854a 100644
--- a/tests/test_misc.py
+++ b/tests/test_misc.py
@@ -267,3 +267,30 @@ def test_user_defined_literal() -> None:
             ]
         )
     )
+
+
+#
+# Line continuation
+#
+
+
+def test_line_continuation() -> None:
+    content = """
+      static int \
+                         variable;
+    """
+    data = parse_string(content, cleandoc=True)
+
+    assert data == ParsedData(
+        namespace=NamespaceScope(
+            variables=[
+                Variable(
+                    name=PQName(segments=[NameSpecifier(name="variable")]),
+                    type=Type(
+                        typename=PQName(segments=[FundamentalSpecifier(name="int")])
+                    ),
+                    static=True,
+                )
+            ]
+        )
+    )