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Renderer of ANSI codes to SFML is now working. Does seem to be a little slow but that'll be easy to fix later.

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This commit is contained in:
Zed A. Shaw 2024-11-02 03:53:33 -04:00
parent ae484bf425
commit a36b187879
8 changed files with 96 additions and 62 deletions
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87
ansi_parser.cpp
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@ -10,7 +10,7 @@
using namespace fmt;
#line 59 ".\\ansi_parser.rl"
#line 77 ".\\ansi_parser.rl"
@ -28,7 +28,7 @@ static const char _foo_key_offsets[] = {
27, 28, 29, 30, 31
};
static const char _foo_trans_keys[] = {
static const int _foo_trans_keys[] = {
27, 91, 51, 52, 56, 57, 59, 50,
59, 48, 57, 59, 48, 57, 48, 57,
59, 48, 57, 48, 57, 109, 48, 57,
@ -85,15 +85,15 @@ static const int foo_error = 0;
static const int foo_en_main = 19;
#line 62 ".\\ansi_parser.rl"
#line 80 ".\\ansi_parser.rl"
bool parse_ansi(std::string_view codes, sf::Color default_fg, sf::Color default_bg, WriteCB write) {
const char *start = NULL;
bool parse_ansi(std::wstring_view codes, sf::Color default_fg, sf::Color default_bg, WriteCB write) {
const wchar_t *start = NULL;
int cs = 0;
unsigned int value = 0;
const char *p = codes.data();
const char *pe = p + codes.size();
const char *eof = pe;
const wchar_t *p = codes.data();
const wchar_t *pe = p + codes.size();
const wchar_t *eof = pe;
sf::Color bgcolor(default_bg);
sf::Color color(default_fg);
sf::Color &target = bgcolor;
@ -104,7 +104,7 @@ bool parse_ansi(std::string_view codes, sf::Color default_fg, sf::Color default_
cs = foo_start;
}
#line 75 ".\\ansi_parser.rl"
#line 93 ".\\ansi_parser.rl"
#line 97 ".\\ansi_parser.cpp"
{
@ -112,7 +112,7 @@ bool parse_ansi(std::string_view codes, sf::Color default_fg, sf::Color default_
unsigned int _trans;
const char *_acts;
unsigned int _nacts;
const char *_keys;
const int *_keys;
if ( p == pe )
goto _test_eof;
@ -124,9 +124,9 @@ _resume:
_klen = _foo_single_lengths[cs];
if ( _klen > 0 ) {
const char *_lower = _keys;
const char *_mid;
const char *_upper = _keys + _klen - 1;
const int *_lower = _keys;
const int *_mid;
const int *_upper = _keys + _klen - 1;
while (1) {
if ( _upper < _lower )
break;
@ -147,9 +147,9 @@ _resume:
_klen = _foo_range_lengths[cs];
if ( _klen > 0 ) {
const char *_lower = _keys;
const char *_mid;
const char *_upper = _keys + (_klen<<1) - 2;
const int *_lower = _keys;
const int *_mid;
const int *_upper = _keys + (_klen<<1) - 2;
while (1) {
if ( _upper < _lower )
break;
@ -180,65 +180,82 @@ _match:
switch ( *_acts++ )
{
case 0:
#line 13 ".\\ansi_parser.rl"
#line 14 ".\\ansi_parser.rl"
{
start = p;
}
break;
case 1:
#line 17 ".\\ansi_parser.rl"
#line 18 ".\\ansi_parser.rl"
{
auto [ptr, ec] = std::from_chars(start, p, value);
dbc::check(ec == std::errc(), "error in number parsing");
value = 0;
size_t len = p - start;
dbc::check(start[0] != '-', "negative numbers not supported");
switch(len) {
case 10: value += (start[len-10] - '0') * 1000000000;
case 9: value += (start[len- 9] - '0') * 100000000;
case 8: value += (start[len- 8] - '0') * 10000000;
case 7: value += (start[len- 7] - '0') * 1000000;
case 6: value += (start[len- 6] - '0') * 100000;
case 5: value += (start[len- 5] - '0') * 10000;
case 4: value += (start[len- 4] - '0') * 1000;
case 3: value += (start[len- 3] - '0') * 100;
case 2: value += (start[len- 2] - '0') * 10;
case 1: value += (start[len- 1] - '0');
break;
default:
dbc::sentinel("can't process > 10 digits");
}
}
break;
case 2:
#line 22 ".\\ansi_parser.rl"
#line 40 ".\\ansi_parser.rl"
{ }
break;
case 3:
#line 23 ".\\ansi_parser.rl"
#line 41 ".\\ansi_parser.rl"
{ target = color; }
break;
case 4:
#line 24 ".\\ansi_parser.rl"
#line 42 ".\\ansi_parser.rl"
{ target = bgcolor; }
break;
case 5:
#line 26 ".\\ansi_parser.rl"
#line 44 ".\\ansi_parser.rl"
{
write(bgcolor, color, (*p));
}
break;
case 6:
#line 30 ".\\ansi_parser.rl"
#line 48 ".\\ansi_parser.rl"
{ color = default_fg; }
break;
case 7:
#line 31 ".\\ansi_parser.rl"
#line 49 ".\\ansi_parser.rl"
{ bgcolor = default_bg; }
break;
case 8:
#line 33 ".\\ansi_parser.rl"
#line 51 ".\\ansi_parser.rl"
{ target.r = value; }
break;
case 9:
#line 34 ".\\ansi_parser.rl"
#line 52 ".\\ansi_parser.rl"
{ target.g = value; }
break;
case 10:
#line 35 ".\\ansi_parser.rl"
#line 53 ".\\ansi_parser.rl"
{ target.b = value; }
break;
case 11:
#line 36 ".\\ansi_parser.rl"
#line 54 ".\\ansi_parser.rl"
{ value = 0; }
break;
case 12:
#line 37 ".\\ansi_parser.rl"
#line 55 ".\\ansi_parser.rl"
{ }
break;
#line 215 ".\\ansi_parser.cpp"
#line 232 ".\\ansi_parser.cpp"
}
}
@ -255,10 +272,10 @@ _again:
while ( __nacts-- > 0 ) {
switch ( *__acts++ ) {
case 12:
#line 37 ".\\ansi_parser.rl"
#line 55 ".\\ansi_parser.rl"
{ }
break;
#line 233 ".\\ansi_parser.cpp"
#line 250 ".\\ansi_parser.cpp"
}
}
}
@ -266,7 +283,7 @@ _again:
_out: {}
}
#line 76 ".\\ansi_parser.rl"
#line 94 ".\\ansi_parser.rl"
return p - pe == 0;
}