From afc50b3ed4b97d9060d9d56fde840217875492a6 Mon Sep 17 00:00:00 2001
From: Saleem Abdulrasool <compnerd@compnerd.org>
Date: Tue, 11 Mar 2014 22:05:42 +0000
Subject: support: add a utility function to normalise path separators

Add a utility function to convert the Windows path separator to Unix style path
separators.  This is used by a subsequent change in clang to enable the use of
Windows SDK headers on Linux.

llvm-svn: 203611
---
 llvm/lib/Support/Unix/Path.inc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'llvm/lib/Support/Unix/Path.inc')

diff --git a/llvm/lib/Support/Unix/Path.inc b/llvm/lib/Support/Unix/Path.inc
index 2b29baca738..500b7fecb74 100644
--- a/llvm/lib/Support/Unix/Path.inc
+++ b/llvm/lib/Support/Unix/Path.inc
@@ -272,6 +272,19 @@ error_code create_directory(const Twine &path, bool IgnoreExisting) {
   return error_code::success();
 }
 
+error_code normalize_separators(SmallVectorImpl<char> &Path) {
+  for (auto PI = Path.begin(), PE = Path.end(); PI < PE; ++PI) {
+    if (*PI == '\\') {
+      auto PN = PI + 1;
+      if (PN < PE && *PN == '\\')
+        ++PI; // increment once, the for loop will move over the escaped slash
+      else
+        *PI = '/';
+    }
+  }
+  return error_code::success();
+}
+
 // Note that we are using symbolic link because hard links are not supported by
 // all filesystems (SMB doesn't).
 error_code create_link(const Twine &to, const Twine &from) {
-- 
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