59 lines
1.4 KiB
C++
59 lines
1.4 KiB
C++
//----------------------------------------------------------------------
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// This software is part of the OpenBeOS distribution and is covered
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// by the MIT License.
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//---------------------------------------------------------------------
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/*!
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\file sniffer/Pattern.h
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Mime Sniffer Pattern declarations
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*/
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#ifndef _SNIFFER_PATTERN_H
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#define _SNIFFER_PATTERN_H
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#include <SupportDefs.h>
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#include <string>
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#include <sniffer/Range.h>
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class BPositionIO;
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namespace BPrivate {
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namespace Storage {
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namespace Sniffer {
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class Err;
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//! A byte string and optional mask to be compared against a data stream.
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/*! The byte string and mask (if supplied) must be of the same length. */
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class Pattern {
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public:
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Pattern(const std::string &string, const std::string &mask);
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Pattern(const std::string &string);
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~Pattern();
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status_t InitCheck() const;
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Err* GetErr() const;
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bool Sniff(Range range, BPositionIO *data, bool caseInsensitive) const;
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ssize_t BytesNeeded() const;
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status_t SetTo(const std::string &string, const std::string &mask);
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private:
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bool Sniff(off_t start, off_t size, BPositionIO *data, bool caseInsensitive) const;
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void SetStatus(status_t status, const char *msg = NULL);
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void SetErrorMessage(const char *msg);
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std::string fString;
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std::string fMask;
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status_t fCStatus;
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Err *fErrorMessage;
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};
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}; // namespace Sniffer
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}; // namespace Storage
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}; // namespace BPrivate
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#endif // _SNIFFER_PATTERN_H
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