mpw-shell/phase1.h
2016-07-21 15:14:27 -04:00

55 lines
1.1 KiB
C++

#ifndef __phase1_h__
#define __phase1_h__
#include <string>
#include <functional>
class phase1 {
public:
typedef std::function<void(std::string &&)> pipe_function;
phase1() = default;
void process(const unsigned char *begin, const unsigned char *end, bool final = false);
void process(const char *begin, const char *end, bool final = false) {
process((const unsigned char *)begin, (const unsigned char *)end, final);
}
void process(const std::string &s, bool final = false);// { process(s.data(), s.data() + s.size(), final); }
void finish();// { const char *tmp = "\n"; process(tmp, tmp+1, true); }
void reset();
void abort() { reset(); }
phase1 &operator >>= (pipe_function f) { pipe_to = f; return *this; }
template<class F>
phase1 &operator >>= (F &f) {
using std::placeholders::_1;
pipe_to = std::bind(&F::operator(), &f, _1);
return *this;
}
bool continuation() const { return multiline; }
private:
int process(unsigned char, int);
void flush();
std::string scratch;
pipe_function pipe_to;
int line = 1;
int cs = 0;
bool multiline = false;
};
#endif