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-rw-r--r--widget/gonk/libui/Tokenizer.h136
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diff --git a/widget/gonk/libui/Tokenizer.h b/widget/gonk/libui/Tokenizer.h
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--- a/widget/gonk/libui/Tokenizer.h
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-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _UTILS_TOKENIZER_H
-#define _UTILS_TOKENIZER_H
-
-#include <assert.h>
-#include <utils/Errors.h>
-#include <utils/FileMap.h>
-#include <utils/String8.h>
-
-namespace android {
-
-/**
- * A simple tokenizer for loading and parsing ASCII text files line by line.
- */
-class Tokenizer {
- Tokenizer(const String8& filename, FileMap* fileMap, char* buffer,
- bool ownBuffer, size_t length);
-
-public:
- ~Tokenizer();
-
- /**
- * Opens a file and maps it into memory.
- *
- * Returns NO_ERROR and a tokenizer for the file, if successful.
- * Otherwise returns an error and sets outTokenizer to NULL.
- */
- static status_t open(const String8& filename, Tokenizer** outTokenizer);
-
- /**
- * Prepares to tokenize the contents of a string.
- *
- * Returns NO_ERROR and a tokenizer for the string, if successful.
- * Otherwise returns an error and sets outTokenizer to NULL.
- */
- static status_t fromContents(const String8& filename,
- const char* contents, Tokenizer** outTokenizer);
-
- /**
- * Returns true if at the end of the file.
- */
- inline bool isEof() const { return mCurrent == getEnd(); }
-
- /**
- * Returns true if at the end of the line or end of the file.
- */
- inline bool isEol() const { return isEof() || *mCurrent == '\n'; }
-
- /**
- * Gets the name of the file.
- */
- inline String8 getFilename() const { return mFilename; }
-
- /**
- * Gets a 1-based line number index for the current position.
- */
- inline int32_t getLineNumber() const { return mLineNumber; }
-
- /**
- * Formats a location string consisting of the filename and current line number.
- * Returns a string like "MyFile.txt:33".
- */
- String8 getLocation() const;
-
- /**
- * Gets the character at the current position.
- * Returns null at end of file.
- */
- inline char peekChar() const { return isEof() ? '\0' : *mCurrent; }
-
- /**
- * Gets the remainder of the current line as a string, excluding the newline character.
- */
- String8 peekRemainderOfLine() const;
-
- /**
- * Gets the character at the current position and advances past it.
- * Returns null at end of file.
- */
- inline char nextChar() { return isEof() ? '\0' : *(mCurrent++); }
-
- /**
- * Gets the next token on this line stopping at the specified delimiters
- * or the end of the line whichever comes first and advances past it.
- * Also stops at embedded nulls.
- * Returns the token or an empty string if the current character is a delimiter
- * or is at the end of the line.
- */
- String8 nextToken(const char* delimiters);
-
- /**
- * Advances to the next line.
- * Does nothing if already at the end of the file.
- */
- void nextLine();
-
- /**
- * Skips over the specified delimiters in the line.
- * Also skips embedded nulls.
- */
- void skipDelimiters(const char* delimiters);
-
-private:
- Tokenizer(const Tokenizer& other); // not copyable
-
- String8 mFilename;
- FileMap* mFileMap;
- char* mBuffer;
- bool mOwnBuffer;
- size_t mLength;
-
- const char* mCurrent;
- int32_t mLineNumber;
-
- inline const char* getEnd() const { return mBuffer + mLength; }
-
-};
-
-} // namespace android
-
-#endif // _UTILS_TOKENIZER_H