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103 lines
2.2 KiB
103 lines
2.2 KiB
4 years ago
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#ifndef _DEV_TEXTFILE_H
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#define _DEV_TEXTFILE_H
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namespace dev
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{
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/**
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* ASCII-7 text file parser. Doesnt throw exceptions.
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*/
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class TextFile
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{
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public:
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/** Error code. */
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enum ErrorType
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{
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/** No error. */
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ERROR_NONE,
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/** File open failed. */
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ERROR_OPEN,
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/** File reading failed. */
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ERROR_READ,
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/** Syntax error. */
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ERROR_PARSE
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};
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/** Opens a file. */
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explicit TextFile( const char* filename );
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///
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~TextFile();
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/**
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* Reads a single character.
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* @return true if read ok.
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*/
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bool readChar( char* ch );
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/**
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* Peeks a single character.
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* @return true if peek ok.
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*/
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bool peekChar( char* ch );
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/**
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* Reads whitespace delimited string.
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* If the string doesnt fit to the buffer then
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* the rest of the string is skipped. Buffer
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* is always 0-terminated.
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* @param buf [out] Pointer to string buffer.
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* @param size String buffer size. Must be larger than 0.
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* @return false if end-of-file reached before any characters was read.
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*/
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bool readString( char* buf, int size );
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/** Skips the rest of the line. */
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void skipLine();
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/** Reads hex integer. Skips preceding whitespace. */
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long readHex();
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/**
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* Skips whitespace characters.
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* @return false if end-of-file reached.
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*/
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bool skipWhitespace();
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/** Returns true if end-of-file have been reached. */
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bool eof() const;
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/** Returns error code or 0 (ERROR_NONE) if no error. */
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ErrorType error() const;
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/** Returns line number of last successful read character. */
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int line() const;
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private:
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class TextFileImpl;
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TextFileImpl* m_this;
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TextFile( const TextFile& );
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TextFile& operator=( const TextFile& );
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};
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} // dev
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#endif // _DEV_TEXTFILE_H
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/*
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* Copyright (c) 2001 Jani Kajala
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*
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* Permission to use, copy, modify, distribute and sell this
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* software and its documentation for any purpose is hereby
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* granted without fee, provided that the above copyright notice
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* appear in all copies and that both that copyright notice and
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* this permission notice appear in supporting documentation.
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* Jani Kajala makes no representations about the suitability
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* of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*/
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