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#ifndef REPLXX_PROMPT_HXX_INCLUDED
#define REPLXX_PROMPT_HXX_INCLUDED 1
#include <cstdlib>
#include "unicodestring.hxx"
#include "io.hxx"
namespace replxx {
class Prompt { // a convenience struct for grouping prompt info
public:
UnicodeString _text; // our copy of the prompt text, edited
int _characterCount; // chars in _text
int _byteCount; // bytes in _text
int _extraLines; // extra lines (beyond 1) occupied by prompt
int _indentation; // column offset to end of prompt
int _lastLinePosition; // index into _text where last line begins
int _previousInputLen; // _characterCount of previous input line, for clearing
int _cursorRowOffset; // where the cursor is relative to the start of the prompt
int _previousLen; // help erasing
private:
int _screenColumns; // width of screen in columns [cache]
Terminal& _terminal;
public:
Prompt( Terminal& );
void set_text( UnicodeString const& textPtr );
void update_screen_columns( void );
int screen_columns() const {
return ( _screenColumns );
}
void write();
};
extern UnicodeString previousSearchText; // remembered across invocations of replxx_input()
// changing prompt for "(reverse-i-search)`text':" etc.
//
struct DynamicPrompt : public Prompt {
UnicodeString _searchText; // text we are searching for
int _direction; // current search _direction, 1=forward, -1=reverse
DynamicPrompt( Terminal&, int initialDirection );
void updateSearchPrompt(void);
};
}
#endif
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