From: Chris Lattner <sabre@nondot.org>
Date: Tue, 23 Jun 2009 05:15:06 +0000 (+0000)
Subject: Fix our check for "random whitespace between a \ and newline" to work
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5636a3b6ece2c1f413464b72545e08eb0b7f06e4;p=clang

Fix our check for "random whitespace between a \ and newline" to work
with dos style newlines.  I have a trivial test for this:

// RUN: clang-cc %s -verify
#define test(x, y) \
   x ## y

but I don't know how to get svn to not change newlines and testrunner
doesn't work with dos style newlines either, so "not worth it". :)

rdar://6994000



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73945 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Lex/Lexer.cpp b/lib/Lex/Lexer.cpp
index c2ffd6d433..81ea606f0d 100644
--- a/lib/Lex/Lexer.cpp
+++ b/lib/Lex/Lexer.cpp
@@ -473,13 +473,14 @@ Slash:
     // Common case, backslash-char where the char is not whitespace.
     if (!isWhitespace(Ptr[0])) return '\\';
     
-    // See if we have optional whitespace characters followed by a newline.
+    // See if we have optional whitespace characters between the slash and
+    // newline.
     if (unsigned EscapedNewLineSize = getEscapedNewLineSize(Ptr)) {
       // Remember that this token needs to be cleaned.
       if (Tok) Tok->setFlag(Token::NeedsCleaning);
 
       // Warn if there was whitespace between the backslash and newline.
-      if (EscapedNewLineSize != 1 && Tok && !isLexingRawMode())
+      if (Ptr[0] != '\n' && Ptr[0] != '\r' && Tok && !isLexingRawMode())
         Diag(Ptr, diag::backslash_newline_space);
         
       // Found backslash<whitespace><newline>.  Parse the char after it.