[Chromoting] Handle CR-LF correctly when transferring text items to and from the clipboard on a Win…

remoting/host/clipboard_util.cc

Index: remoting/host/clipboard_util.cc
diff --git a/remoting/host/clipboard_util.cc b/remoting/host/clipboard_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..87ef7cf1f09ae31827a92d6a8d0ca159a6e39537
--- /dev/null
+++ b/remoting/host/clipboard_util.cc
@@ -0,0 +1,47 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "remoting/host/clipboard_util.h"
+
+namespace remoting {
+
+std::string ClipboardUtil::ReplaceLfByCrLf(const std::string& in) {

[Wez, 2012/05/31 22:36:41]

This and the reverse can be implemented with ReplaceSubStringsAfterOffset() from
base/string_util.h, I think?

+  std::string out;
+  out.resize(2 * in.size());
+  char* out_p_begin = &out[0];
+  char* out_p = out_p_begin;
+  const char* in_p_begin = &in[0];
+  const char* in_p_end = &in[in.size()];
+  for (const char* in_p = in_p_begin; in_p < in_p_end; ++in_p) {
+    char c = *in_p;
+    if (c == '\n') {
+      *out_p++ = '\r';
+    }
+    *out_p++ = c;
+  }
+  out.resize(out_p - out_p_begin);
+  return out;
+}
+
+std::string ClipboardUtil::ReplaceCrLfByLf(const std::string& in) {
+  std::string out;
+  out.resize(in.size());
+  char* out_p_begin = &out[0];
+  char* out_p = out_p_begin;
+  const char* in_p_begin = &in[0];
+  const char* in_p_end = &in[in.size()];
+  for (const char* in_p = in_p_begin; in_p < in_p_end; ++in_p) {
+    char c = *in_p;
+    if ((c == '\r') && (in_p + 1 < in_p_end) && (*(in_p + 1) == '\n')) {
+      *out_p++ = '\n';
+      ++in_p;
+    } else {
+      *out_p++ = c;
+    }
+  }
+  out.resize(out_p - out_p_begin);
+  return out;
+}
+
+}  // namespace remoting