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strip UTF-8 BOM in -frewrite-includes (PR#15664) 

llvm-svn: 195877
This commit is contained in:
Lubos Lunak 2013-11-27 21:14:43 +00:00
parent 72e5b93b82
commit c6b9270d04
3 changed files with 10 additions and 0 deletions
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5
clang/lib/Rewrite/Frontend/InclusionRewriter.cpp
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@ -367,6 +367,11 @@ bool InclusionRewriter::Process(FileID FileId,
unsigned NextToWrite = 0; unsigned NextToWrite = 0;
int Line = 1; // The current input file line number. int Line = 1; // The current input file line number.
// Ignore UTF-8 BOM, otherwise it'd end up somewhere else than the start
// of the resulting file.
if (FromFile.getBuffer().startswith("\xEF\xBB\xBF"))
NextToWrite = 3;
Token RawToken; Token RawToken;
RawLex.LexFromRawLexer(RawToken); RawLex.LexFromRawLexer(RawToken);

1
clang/test/Frontend/Inputs/rewrite-includes-bom.h Normal file
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@ -0,0 +1 @@
// This file starts with UTF-8 BOM marker.

4
clang/test/Frontend/rewrite-includes-bom.c Normal file
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@ -0,0 +1,4 @@
// RUN: %clang -E -frewrite-includes -I %S/Inputs %s -o - | %clang -fsyntax-only -Xclang -verify -x c -
// expected-no-diagnostics
#include "rewrite-includes-bom.h"