Barely working ansi color codes parser but I _really_ don't like this one. Too much code to just get it to process correctly which means it'll be brittle as hell later.
parent
a44a9a04f9
commit
f32b39afe2
@ -0,0 +1,302 @@ |
||||
|
||||
#line 1 ".\\ansi_parser.rl" |
||||
#include <fmt/core.h> |
||||
#include <string_view> |
||||
#include <charconv> |
||||
#include "dbc.hpp" |
||||
|
||||
using namespace fmt; |
||||
|
||||
|
||||
#line 80 ".\\ansi_parser.rl" |
||||
|
||||
|
||||
|
||||
#line 11 ".\\ansi_parser.cpp" |
||||
static const char _foo_actions[] = { |
||||
0, 1, 0, 1, 1, 1, 8, 1,
|
||||
9, 1, 10, 2, 1, 2, 2, 1,
|
||||
3, 2, 1, 4, 2, 1, 5, 2,
|
||||
6, 0, 2, 7, 0, 2, 9, 0,
|
||||
2, 10, 8 |
||||
}; |
||||
|
||||
static const char _foo_key_offsets[] = { |
||||
0, 0, 1, 2, 7, 11, 13, 16,
|
||||
21, 25, 29, 33, 35, 38, 40, 43,
|
||||
45, 48, 52, 54, 57, 59, 62, 67,
|
||||
71, 75, 76 |
||||
}; |
||||
|
||||
static const char _foo_trans_keys[] = { |
||||
27, 91, 51, 52, 109, 48, 57, 59,
|
||||
109, 48, 57, 48, 57, 109, 48, 57,
|
||||
56, 59, 109, 48, 57, 59, 109, 48,
|
||||
57, 50, 53, 48, 57, 59, 109, 48,
|
||||
57, 48, 57, 59, 48, 57, 48, 57,
|
||||
59, 48, 57, 48, 57, 109, 48, 57,
|
||||
59, 109, 48, 57, 48, 57, 59, 48,
|
||||
57, 48, 57, 109, 48, 57, 56, 59,
|
||||
109, 48, 57, 59, 109, 48, 57, 50,
|
||||
53, 48, 57, 27, 27, 0 |
||||
}; |
||||
|
||||
static const char _foo_single_lengths[] = { |
||||
0, 1, 1, 3, 2, 0, 1, 3,
|
||||
2, 2, 2, 0, 1, 0, 1, 0,
|
||||
1, 2, 0, 1, 0, 1, 3, 2,
|
||||
2, 1, 1 |
||||
}; |
||||
|
||||
static const char _foo_range_lengths[] = { |
||||
0, 0, 0, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 0, 0 |
||||
}; |
||||
|
||||
static const char _foo_index_offsets[] = { |
||||
0, 0, 2, 4, 9, 13, 15, 18,
|
||||
23, 27, 31, 35, 37, 40, 42, 45,
|
||||
47, 50, 54, 56, 59, 61, 64, 69,
|
||||
73, 77, 79 |
||||
}; |
||||
|
||||
static const char _foo_trans_targs[] = { |
||||
2, 1, 3, 0, 7, 22, 26, 4,
|
||||
0, 5, 26, 4, 0, 6, 0, 26,
|
||||
6, 0, 8, 5, 26, 4, 0, 9,
|
||||
26, 4, 0, 10, 17, 6, 0, 11,
|
||||
26, 6, 0, 12, 0, 13, 12, 0,
|
||||
14, 0, 15, 14, 0, 16, 0, 26,
|
||||
16, 0, 18, 26, 6, 0, 19, 0,
|
||||
20, 19, 0, 21, 0, 26, 21, 0,
|
||||
23, 5, 26, 4, 0, 24, 26, 4,
|
||||
0, 10, 17, 6, 0, 2, 1, 2,
|
||||
1, 0 |
||||
}; |
||||
|
||||
static const char _foo_trans_actions[] = { |
||||
0, 5, 0, 0, 29, 29, 7, 29,
|
||||
0, 3, 17, 0, 0, 1, 0, 20,
|
||||
0, 0, 0, 3, 17, 0, 0, 3,
|
||||
17, 0, 0, 26, 26, 1, 0, 0,
|
||||
20, 0, 0, 1, 0, 3, 0, 0,
|
||||
1, 0, 3, 0, 0, 1, 0, 14,
|
||||
0, 0, 0, 20, 0, 0, 1, 0,
|
||||
3, 0, 0, 1, 0, 11, 0, 0,
|
||||
0, 3, 17, 0, 0, 3, 17, 0,
|
||||
0, 23, 23, 1, 0, 0, 5, 9,
|
||||
32, 0 |
||||
}; |
||||
|
||||
static const char _foo_eof_actions[] = { |
||||
0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 9 |
||||
}; |
||||
|
||||
static const int foo_start = 25; |
||||
static const int foo_first_final = 25; |
||||
static const int foo_error = 0; |
||||
|
||||
static const int foo_en_main = 25; |
||||
|
||||
|
||||
#line 83 ".\\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; |
||||
|
||||
|
||||
|
||||
#line 111 ".\\ansi_parser.cpp" |
||||
{ |
||||
cs = foo_start; |
||||
} |
||||
|
||||
#line 94 ".\\ansi_parser.rl" |
||||
|
||||
#line 114 ".\\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: |
||||
_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: |
||||
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 21 ".\\ansi_parser.rl" |
||||
{ |
||||
println("COLOR256"); |
||||
} |
||||
break; |
||||
case 3: |
||||
#line 25 ".\\ansi_parser.rl" |
||||
{ |
||||
println("COLOR24B"); |
||||
} |
||||
break; |
||||
case 4: |
||||
#line 29 ".\\ansi_parser.rl" |
||||
{ |
||||
println("SINGLE"); |
||||
} |
||||
break; |
||||
case 5: |
||||
#line 33 ".\\ansi_parser.rl" |
||||
{ |
||||
println("BASIC"); |
||||
} |
||||
break; |
||||
case 6: |
||||
#line 37 ".\\ansi_parser.rl" |
||||
{ |
||||
println("BG"); |
||||
} |
||||
break; |
||||
case 7: |
||||
#line 41 ".\\ansi_parser.rl" |
||||
{ |
||||
println("FG"); |
||||
} |
||||
break; |
||||
case 8: |
||||
#line 45 ".\\ansi_parser.rl" |
||||
{ |
||||
println("ANY: {}:{}", int((*p)), (*p)); |
||||
} |
||||
break; |
||||
case 9: |
||||
#line 49 ".\\ansi_parser.rl" |
||||
{ |
||||
println("START"); |
||||
} |
||||
break; |
||||
case 10: |
||||
#line 53 ".\\ansi_parser.rl" |
||||
{ |
||||
println("END"); |
||||
} |
||||
break; |
||||
#line 243 ".\\ansi_parser.cpp" |
||||
} |
||||
} |
||||
|
||||
_again: |
||||
if ( cs == 0 ) |
||||
goto _out; |
||||
if ( ++p != pe ) |
||||
goto _resume; |
||||
_test_eof: {} |
||||
if ( p == eof ) |
||||
{ |
||||
const char *__acts = _foo_actions + _foo_eof_actions[cs]; |
||||
unsigned int __nacts = (unsigned int) *__acts++; |
||||
while ( __nacts-- > 0 ) { |
||||
switch ( *__acts++ ) { |
||||
case 10: |
||||
#line 53 ".\\ansi_parser.rl" |
||||
{ |
||||
println("END"); |
||||
} |
||||
break; |
||||
#line 263 ".\\ansi_parser.cpp" |
||||
} |
||||
} |
||||
} |
||||
|
||||
_out: {} |
||||
} |
||||
|
||||
#line 95 ".\\ansi_parser.rl" |
||||
|
||||
print("PROCESSED {} CHARS of {}", p - codes.data(), codes.size()); |
||||
|
||||
return true; |
||||
} |
||||
@ -0,0 +1,4 @@ |
||||
#pragma once |
||||
#include <string_view> |
||||
|
||||
bool parse_ansi(std::string_view codes); |
||||
@ -0,0 +1,99 @@ |
||||
#include <fmt/core.h> |
||||
#include <string_view> |
||||
#include <charconv> |
||||
#include "dbc.hpp" |
||||
|
||||
using namespace fmt; |
||||
|
||||
%%{ |
||||
machine foo; |
||||
|
||||
action tstart { |
||||
start = fpc; |
||||
} |
||||
|
||||
action number { |
||||
auto [ptr, ec] = std::from_chars(start, fpc, value); |
||||
dbc::check(ec == std::errc(), "error in number parsing"); |
||||
println("NUM: {}", value); |
||||
} |
||||
|
||||
action color256 { |
||||
println("COLOR256"); |
||||
} |
||||
|
||||
action color24b { |
||||
println("COLOR24B"); |
||||
} |
||||
|
||||
action colorSingle { |
||||
println("SINGLE"); |
||||
} |
||||
|
||||
action colorBasic { |
||||
println("BASIC"); |
||||
} |
||||
|
||||
action bg { |
||||
println("BG"); |
||||
} |
||||
|
||||
action fg { |
||||
println("FG"); |
||||
} |
||||
|
||||
action any { |
||||
println("ANY: {}:{}", int(fc), fc); |
||||
} |
||||
|
||||
action start { |
||||
println("START"); |
||||
} |
||||
|
||||
action end { |
||||
println("END"); |
||||
} |
||||
|
||||
start = 0x1B "["; |
||||
fg = "38;" %fg; |
||||
bg = "48;" %bg; |
||||
num = digit+ >tstart %number; |
||||
color256 = "5;" num ";" num; |
||||
color24b = "2;" num ";" num ";" num; |
||||
basic = num ";" num; |
||||
single = num; |
||||
|
||||
colorCode = ( |
||||
start %start |
||||
( |
||||
(fg|bg) color256 %color256 | |
||||
(fg|bg) color24b %color24b | |
||||
single %colorSingle | |
||||
basic %colorBasic |
||||
)** |
||||
"m" %end |
||||
); |
||||
|
||||
other = (any+ @any -- 0x1B)*; |
||||
|
||||
main := (other :>> colorCode)**; |
||||
}%% |
||||
|
||||
%% write data; |
||||
|
||||
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; |
||||
|
||||
|
||||
%% write init; |
||||
%% write exec; |
||||
|
||||
print("PROCESSED {} CHARS of {}", p - codes.data(), codes.size()); |
||||
|
||||
return true; |
||||
} |
||||
@ -0,0 +1,59 @@ |
||||
#include <catch2/catch_test_macros.hpp> |
||||
#include <fmt/core.h> |
||||
#include <string> |
||||
#include "ansi_parser.hpp" |
||||
|
||||
|
||||
#include "ftxui/dom/elements.hpp" // for text, bgcolor, color, vbox, hbox, separator, operator|, Elements, Element, Fit, border |
||||
#include "ftxui/dom/node.hpp" // for Render |
||||
#include "ftxui/screen/color.hpp" // for Color, Color::Black, Color::Blue, Color::BlueLight, Color::Cyan, Color::CyanLight, Color::Default, Color::GrayDark, Color::GrayLight, Color::Green, Color::GreenLight, Color::Magenta, Color::MagentaLight, Color::Red, Color::RedLight, Color::White, Color::Yellow, Color::YellowLight, Color::Palette256, ftxui |
||||
#include <ftxui/screen/color_info.hpp> // for ColorInfo |
||||
#include <ftxui/screen/screen.hpp> // for Full, Screen |
||||
#include <ftxui/screen/terminal.hpp> // for ColorSupport, Color, Palette16, Palette256, TrueColor |
||||
|
||||
|
||||
using namespace fmt; |
||||
using namespace ftxui; |
||||
|
||||
std::string generate_colors() { |
||||
const int max_value = 255; |
||||
const int value_increment = 8; |
||||
const int hue_increment = 6; |
||||
int saturation = max_value; |
||||
Elements array; |
||||
int count = 0; |
||||
|
||||
for (int value = 0; value < max_value; value += 2 * value_increment) { |
||||
Elements line; |
||||
for (int hue = 0; hue < max_value; hue += hue_increment) { |
||||
line.push_back( |
||||
text("#") //
|
||||
| color(Color::HSV(hue, saturation, value)) //
|
||||
| bgcolor(Color::HSV(hue, saturation, value + value_increment))); |
||||
count++; |
||||
} |
||||
array.push_back(hbox(std::move(line))); |
||||
break; /// UNDO ME
|
||||
} |
||||
|
||||
println("MADE {} CHARS", count); |
||||
|
||||
auto true_color_display = vbox({ |
||||
vbox(std::move(array)), |
||||
}); |
||||
|
||||
auto document = vbox({hbox({ |
||||
true_color_display, |
||||
})}); |
||||
|
||||
auto screen = Screen::Create(Dimension::Full(), Dimension::Fit(document)); |
||||
Render(screen, document); |
||||
return screen.ToString(); |
||||
} |
||||
|
||||
TEST_CASE("test out ragel parser", "[gui]") { |
||||
std::string colors = generate_colors(); |
||||
|
||||
println("--- PARSING"); |
||||
REQUIRE(parse_ansi(colors)); |
||||
} |
||||
Loading…
Reference in new issue