roguish/ansi_parser.cpp

#line 1 ".\\ansi_parser.rl"
#include <fmt/core.h>
#include <string_view>
#include <charconv>
#include "dbc.hpp"

using namespace fmt;


#line 74 ".\\ansi_parser.rl"



#line 11 ".\\ansi_parser.cpp"
static const char _foo_actions[] = {
	0, 1, 0, 1, 1, 1, 2, 1, 
	3, 1, 4, 1, 5, 1, 6, 1, 
	7, 1, 8, 1, 9, 2, 1, 10, 
	2, 1, 11
};

static const char _foo_key_offsets[] = {
	0, 0, 1, 2, 3, 4, 6, 7, 
	9, 12, 14, 17, 19, 20, 22, 25, 
	27, 28, 29, 31, 31, 35, 37
};

static const char _foo_trans_keys[] = {
	27, 91, 56, 59, 50, 53, 59, 48, 
	57, 59, 48, 57, 48, 57, 59, 48, 
	57, 48, 57, 59, 48, 57, 59, 48, 
	57, 48, 57, 56, 59, 50, 53, 27, 
	51, 52, 109, 48, 57, 48, 57, 0
};

static const char _foo_single_lengths[] = {
	0, 1, 1, 1, 1, 2, 1, 0, 
	1, 0, 1, 0, 1, 0, 1, 0, 
	1, 1, 2, 0, 4, 0, 0
};

static const char _foo_range_lengths[] = {
	0, 0, 0, 0, 0, 0, 0, 1, 
	1, 1, 1, 1, 0, 1, 1, 1, 
	0, 0, 0, 0, 0, 1, 1
};

static const char _foo_index_offsets[] = {
	0, 0, 2, 4, 6, 8, 11, 13, 
	15, 18, 20, 23, 25, 27, 29, 32, 
	34, 36, 38, 41, 42, 47, 49
};

static const char _foo_trans_targs[] = {
	19, 1, 20, 0, 4, 0, 5, 0, 
	6, 12, 0, 7, 0, 8, 0, 9, 
	8, 0, 10, 0, 11, 10, 0, 21, 
	0, 13, 0, 14, 0, 15, 14, 0, 
	22, 0, 17, 0, 18, 0, 6, 12, 
	0, 0, 2, 3, 16, 20, 0, 21, 
	20, 22, 20, 20, 20, 0
};

static const char _foo_trans_actions[] = {
	11, 9, 17, 0, 0, 0, 0, 0, 
	7, 7, 0, 0, 0, 1, 0, 3, 
	0, 0, 1, 0, 3, 0, 0, 1, 
	0, 0, 0, 1, 0, 3, 0, 0, 
	1, 0, 0, 0, 0, 0, 5, 5, 
	0, 0, 0, 0, 0, 19, 0, 0, 
	24, 0, 21, 24, 21, 0
};

static const char _foo_to_state_actions[] = {
	0, 13, 0, 0, 0, 0, 0, 0, 
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 0, 0, 0, 13, 0, 0
};

static const char _foo_from_state_actions[] = {
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 0, 0, 0, 15, 0, 0
};

static const char _foo_eof_trans[] = {
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 0, 0, 0, 0, 0, 0, 0, 
	0, 0, 0, 0, 0, 52, 53
};

static const int foo_start = 1;
static const int foo_first_final = 19;
static const int foo_error = 0;

static const int foo_en_ansi = 20;
static const int foo_en_main = 1;


#line 77 ".\\ansi_parser.rl"

bool parse_ansi(std::string_view codes) {
  const char *start = NULL;
  int cs = 0;
  size_t value = 0;
  const char *p = codes.data();
  const char *pe = p + codes.size();
  const char *eof = pe;
  const char *ts = p;
  const char *te = p;
  int act = 0;

  
#line 107 ".\\ansi_parser.cpp"
	{
	cs = foo_start;
	ts = 0;
	te = 0;
	act = 0;
	}

#line 90 ".\\ansi_parser.rl"
  
#line 113 ".\\ansi_parser.cpp"
	{
	int _klen;
	unsigned int _trans;
	const char *_acts;
	unsigned int _nacts;
	const char *_keys;

	if ( p == pe )
		goto _test_eof;
	if ( cs == 0 )
		goto _out;
_resume:
	_acts = _foo_actions + _foo_from_state_actions[cs];
	_nacts = (unsigned int) *_acts++;
	while ( _nacts-- > 0 ) {
		switch ( *_acts++ ) {
	case 7:
#line 1 "NONE"
	{ts = p;}
	break;
#line 132 ".\\ansi_parser.cpp"
		}
	}

	_keys = _foo_trans_keys + _foo_key_offsets[cs];
	_trans = _foo_index_offsets[cs];

	_klen = _foo_single_lengths[cs];
	if ( _klen > 0 ) {
		const char *_lower = _keys;
		const char *_mid;
		const char *_upper = _keys + _klen - 1;
		while (1) {
			if ( _upper < _lower )
				break;

			_mid = _lower + ((_upper-_lower) >> 1);
			if ( (*p) < *_mid )
				_upper = _mid - 1;
			else if ( (*p) > *_mid )
				_lower = _mid + 1;
			else {
				_trans += (unsigned int)(_mid - _keys);
				goto _match;
			}
		}
		_keys += _klen;
		_trans += _klen;
	}

	_klen = _foo_range_lengths[cs];
	if ( _klen > 0 ) {
		const char *_lower = _keys;
		const char *_mid;
		const char *_upper = _keys + (_klen<<1) - 2;
		while (1) {
			if ( _upper < _lower )
				break;

			_mid = _lower + (((_upper-_lower) >> 1) & ~1);
			if ( (*p) < _mid[0] )
				_upper = _mid - 2;
			else if ( (*p) > _mid[1] )
				_lower = _mid + 2;
			else {
				_trans += (unsigned int)((_mid - _keys)>>1);
				goto _match;
			}
		}
		_trans += _klen;
	}

_match:
_eof_trans:
	cs = _foo_trans_targs[_trans];

	if ( _foo_trans_actions[_trans] == 0 )
		goto _again;

	_acts = _foo_actions + _foo_trans_actions[_trans];
	_nacts = (unsigned int) *_acts++;
	while ( _nacts-- > 0 )
	{
		switch ( *_acts++ )
		{
	case 0:
#line 11 ".\\ansi_parser.rl"
	{
    start = p;
  }
	break;
	case 1:
#line 15 ".\\ansi_parser.rl"
	{
    auto [ptr, ec] = std::from_chars(start, p, value);
    dbc::check(ec == std::errc(), "error in number parsing");
    println("NUM: {}", value);
  }
	break;
	case 2:
#line 37 ".\\ansi_parser.rl"
	{
    println("BG");
  }
	break;
	case 3:
#line 41 ".\\ansi_parser.rl"
	{
    println("FG");
  }
	break;
	case 4:
#line 45 ".\\ansi_parser.rl"
	{
    println("ANY: {}:{}", int((*p)), (*p));
  }
	break;
	case 5:
#line 72 ".\\ansi_parser.rl"
	{ p--; {cs = 20;goto _again;} }
	break;
	case 8:
#line 49 ".\\ansi_parser.rl"
	{te = p+1;{
    println("START");
  }}
	break;
	case 9:
#line 69 ".\\ansi_parser.rl"
	{te = p+1;{ {cs = 1;goto _again;} }}
	break;
	case 10:
#line 21 ".\\ansi_parser.rl"
	{te = p;p--;{
    println("COLOR256");
  }}
	break;
	case 11:
#line 25 ".\\ansi_parser.rl"
	{te = p;p--;{
    println("COLOR24B");
  }}
	break;
#line 244 ".\\ansi_parser.cpp"
		}
	}

_again:
	_acts = _foo_actions + _foo_to_state_actions[cs];
	_nacts = (unsigned int) *_acts++;
	while ( _nacts-- > 0 ) {
		switch ( *_acts++ ) {
	case 6:
#line 1 "NONE"
	{ts = 0;}
	break;
#line 255 ".\\ansi_parser.cpp"
		}
	}

	if ( cs == 0 )
		goto _out;
	if ( ++p != pe )
		goto _resume;
	_test_eof: {}
	if ( p == eof )
	{
	if ( _foo_eof_trans[cs] > 0 ) {
		_trans = _foo_eof_trans[cs] - 1;
		goto _eof_trans;
	}
	}

	_out: {}
	}

#line 91 ".\\ansi_parser.rl"

  print("PROCESSED {} CHARS of {}", p - codes.data(), codes.size());

  return true;
}