1 files changed, 74 insertions, 0 deletions
diff --git a/Source/ThirdParty/ANGLE/src/compiler/preprocessor/new/Input.h b/Source/ThirdParty/ANGLE/src/compiler/preprocessor/new/Input.h
new file mode 100644
index 0000000..5a1b5d1
--- /dev/null
+++ b/Source/ThirdParty/ANGLE/src/compiler/preprocessor/new/Input.h
@@ -0,0 +1,74 @@
+//
+// Copyright (c) 2011 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#ifndef COMPILER_PREPROCESSOR_INPUT_H_
+#define COMPILER_PREPROCESSOR_INPUT_H_
+
+namespace pp
+{
+
+// Reads the given set of strings into input buffer.
+// Strips comments.
+class Input
+{
+  public:
+    Input(int count, const char* const string[], const int length[]);
+
+    enum Error
+    {
+        kErrorNone,
+        kErrorUnexpectedEOF
+    };
+    Error error() const { return mError; }
+
+    // Returns the index of string currently being scanned.
+    int stringIndex() const { return mIndex; }
+    // Returns true if EOF has reached.
+    bool eof() const;
+
+    // Reads up to bufSize characters into buf.
+    // Returns the number of characters read.
+    // It replaces each comment by a whitespace. It reads only one string
+    // at a time so that the lexer has opportunity to update the string number
+    // for meaningful diagnostic messages.
+    int read(char* buf, int bufSize);
+
+private:
+    enum State
+    {
+        kStateInitial,
+        kStateLineComment,
+        kStateBlockComment
+    };
+
+    int getChar();
+    int peekChar();
+    // Switches input buffer to the next non-empty string.
+    // This is called when the current string is fully read.
+    void switchToNextString();
+    // Returns true if the given string is empty.
+    bool isStringEmpty(int index);
+    // Return the length of the given string.
+    // Returns a negative value for null-terminated strings.
+    int stringLength(int index);
+
+    // Input.
+    int mCount;
+    const char* const* mString;
+    const int* mLength;
+
+    // Current read position.
+    int mIndex;   // Index of string currently being scanned.
+    int mSize;    // Size of string already scanned.
+
+    // Current error and state.
+    Error mError;
+    State mState;
+};
+
+}  // namespace pp
+#endif  // COMPILER_PREPROCESSOR_INPUT_H_
+