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Increased documentation.

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This commit is contained in:
Thomas Harte 2016-09-05 22:06:39 -04:00
parent 05c24222d8
commit 963e307d0c
2 changed files with 33 additions and 4 deletions
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4
OSBindings/Mac/Clock Signal.xcodeproj/project.pbxproj
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@ -1603,9 +1603,9 @@
children = (
4BF1354A1D6D2C300054B2EA /* StaticAnalyser.cpp */,
4BF1354B1D6D2C300054B2EA /* StaticAnalyser.hpp */,
4BC830D21D6E7C6D0000A26F /* Commodore */,
4BD14B121D7462810088EAD6 /* Acorn */,
4BD328FD1D7E3EB5003B8C44 /* TapeParser.hpp */,
4BD14B121D7462810088EAD6 /* Acorn */,
4BC830D21D6E7C6D0000A26F /* Commodore */,
);
name = StaticAnalyser;
sourceTree = "<group>";

33
StaticAnalyser/TapeParser.hpp
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@ -13,29 +13,54 @@ namespace StaticAnalyer {
/*!
A partly-abstract base class to help in the authorship of tape format parsers;
provides hooks for a
provides hooks for pulse classification from pulses to waves and for symbol identification from
waves.
Very optional, not intended to box in the approaches taken for analysis.
*/
template <typename WaveType, typename SymbolType> class TapeParser {
public:
TapeParser(const std::shared_ptr<Storage::Tape::Tape> &tape) : _tape(tape), _has_next_symbol(false) {}
/// Instantiates a new parser with the supplied @c tape.
TapeParser(const std::shared_ptr<Storage::Tape::Tape> &tape) : _tape(tape), _has_next_symbol(false), _error_flag(false) {}
/// Resets the error flag.
void reset_error_flag() { _error_flag = false; }
/// @returns @c true if an error has occurred since the error flag was last reset; @c false otherwise.
bool get_error_flag() { return _error_flag; }
/// @returns @c true if the encapsulated tape has reached its end; @c false otherwise.
bool is_at_end() { return _tape->is_at_end(); }
protected:
bool _error_flag;
/*!
Adds @c wave to the back of the list of recognised waves and calls @c inspect_waves to check for a new symbol.
Expected to be called by subclasses from @c process_pulse as and when recognised waves arise.
*/
void push_wave(WaveType wave)
{
_wave_queue.push_back(wave);
inspect_waves(_wave_queue);
}
/*!
Removes @c nunber_of_waves waves from the front of the list.
Expected to be called by subclasses from @c process_pulse if it is recognised that the first set of waves
do not form a valid symbol.
*/
void remove_waves(int number_of_waves)
{
_wave_queue.erase(_wave_queue.begin(), _wave_queue.begin()+number_of_waves);
}
/*!
Sets @c symbol as the newly-recognised symbol and removes @c nunber_of_waves waves from the front of the list.
Expected to be called by subclasses from @c process_pulse when it recognises that the first @c number_of_waves
waves together represent @c symbol.
*/
void push_symbol(SymbolType symbol, int number_of_waves)
{
_has_next_symbol = true;
@ -43,6 +68,10 @@ template <typename WaveType, typename SymbolType> class TapeParser {
remove_waves(number_of_waves);
}
/*!
Asks the parser to continue taking pulses from the tape until either the subclass next declares a symbol
or the tape runs out, returning the most-recently declared symbol.
*/
SymbolType get_next_symbol()
{
while(!_has_next_symbol && !is_at_end())