Start of a ragel parser that can do the ansi code parsing for me.
This commit is contained in:
Zed A. Shaw
parent
35ef1e786d
commit
74310304bd
3 changed files with 215 additions and 67 deletions
|
|
@ -1,88 +1,117 @@
|
|||
|
||||
#line 1 ".\\scratchpad\\testragel.rl"
|
||||
#include <fmt/core.h>
|
||||
#include <string>
|
||||
#include <vector>
|
||||
#include <string_view>
|
||||
#include <charconv>
|
||||
#include "dbc.hpp"
|
||||
|
||||
using namespace fmt;
|
||||
|
||||
|
||||
#line 11 ".\\scratchpad\\testragel.rl"
|
||||
#line 40 ".\\scratchpad\\testragel.rl"
|
||||
|
||||
|
||||
|
||||
#line 8 ".\\scratchpad\\testragel.cpp"
|
||||
#line 13 ".\\scratchpad\\testragel.cpp"
|
||||
static const char _foo_actions[] = {
|
||||
0, 1, 0, 1, 1, 1, 2, 1,
|
||||
3, 1, 4, 1, 5
|
||||
3, 1, 4, 1, 5, 1, 6, 1,
|
||||
9, 1, 10, 1, 11, 2, 1, 7,
|
||||
2, 1, 8, 2, 1, 9, 2, 1,
|
||||
10, 2, 4, 0
|
||||
};
|
||||
|
||||
static const char _foo_key_offsets[] = {
|
||||
0, 0, 1, 3, 5, 8, 10, 13,
|
||||
14, 16, 19, 21, 24, 25
|
||||
0, 0, 1, 3, 5, 6, 7, 12,
|
||||
15, 17, 19, 22, 24
|
||||
};
|
||||
|
||||
static const char _foo_trans_keys[] = {
|
||||
27, 65, 91, 48, 57, 59, 48, 57,
|
||||
48, 57, 109, 48, 57, 0, 48, 57,
|
||||
59, 48, 57, 48, 57, 109, 48, 57,
|
||||
0, 0
|
||||
91, 48, 57, 50, 53, 59, 59, 27,
|
||||
59, 109, 48, 57, 59, 48, 57, 48,
|
||||
57, 48, 57, 59, 48, 57, 48, 57,
|
||||
59, 48, 57, 0
|
||||
};
|
||||
|
||||
static const char _foo_single_lengths[] = {
|
||||
0, 1, 2, 0, 1, 0, 1, 1,
|
||||
0, 1, 0, 1, 1, 0
|
||||
0, 1, 0, 2, 1, 1, 3, 1,
|
||||
0, 0, 1, 0, 1
|
||||
};
|
||||
|
||||
static const char _foo_range_lengths[] = {
|
||||
0, 0, 0, 1, 1, 1, 1, 0,
|
||||
1, 1, 1, 1, 0, 0
|
||||
0, 0, 1, 0, 0, 0, 1, 1,
|
||||
1, 1, 1, 1, 1
|
||||
};
|
||||
|
||||
static const char _foo_index_offsets[] = {
|
||||
0, 0, 2, 5, 7, 10, 12, 15,
|
||||
17, 19, 22, 24, 27, 29
|
||||
};
|
||||
|
||||
static const char _foo_indicies[] = {
|
||||
0, 1, 2, 3, 1, 4, 1, 5,
|
||||
4, 1, 6, 1, 7, 6, 1, 8,
|
||||
1, 9, 1, 10, 9, 1, 11, 1,
|
||||
12, 11, 1, 13, 1, 1, 0
|
||||
0, 0, 2, 4, 7, 9, 11, 16,
|
||||
19, 21, 23, 26, 28
|
||||
};
|
||||
|
||||
static const char _foo_trans_targs[] = {
|
||||
2, 0, 3, 8, 4, 5, 6, 7,
|
||||
13, 9, 10, 11, 12, 13
|
||||
6, 0, 8, 6, 4, 5, 0, 9,
|
||||
0, 11, 0, 1, 3, 6, 7, 0,
|
||||
2, 7, 6, 8, 6, 10, 6, 9,
|
||||
10, 6, 12, 6, 11, 12, 6, 6,
|
||||
6, 6, 6, 6, 6, 6, 0
|
||||
};
|
||||
|
||||
static const char _foo_trans_actions[] = {
|
||||
0, 0, 0, 0, 7, 0, 9, 0,
|
||||
11, 1, 0, 3, 0, 5
|
||||
11, 0, 1, 19, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 13, 33, 0,
|
||||
3, 9, 21, 0, 24, 1, 17, 3,
|
||||
0, 30, 1, 15, 3, 0, 27, 19,
|
||||
21, 24, 17, 30, 15, 27, 0
|
||||
};
|
||||
|
||||
static const int foo_start = 1;
|
||||
static const int foo_first_final = 13;
|
||||
static const char _foo_to_state_actions[] = {
|
||||
0, 0, 0, 0, 0, 0, 5, 0,
|
||||
0, 0, 0, 0, 0
|
||||
};
|
||||
|
||||
static const char _foo_from_state_actions[] = {
|
||||
0, 0, 0, 0, 0, 0, 7, 0,
|
||||
0, 0, 0, 0, 0
|
||||
};
|
||||
|
||||
static const char _foo_eof_trans[] = {
|
||||
0, 0, 32, 0, 0, 0, 0, 33,
|
||||
34, 35, 36, 37, 38
|
||||
};
|
||||
|
||||
static const int foo_start = 6;
|
||||
static const int foo_first_final = 6;
|
||||
static const int foo_error = 0;
|
||||
|
||||
static const int foo_en_main = 1;
|
||||
static const int foo_en_main = 6;
|
||||
|
||||
|
||||
#line 14 ".\\scratchpad\\testragel.rl"
|
||||
#line 43 ".\\scratchpad\\testragel.rl"
|
||||
|
||||
int main() {
|
||||
int cs, res = 0;
|
||||
char *test = "\x1B[36;46m";
|
||||
void parse_ansi(std::string_view &codes) {
|
||||
const char *start = NULL;
|
||||
int cs = 0;
|
||||
size_t act = 0;
|
||||
const char *p = codes.data();
|
||||
const char *pe = p + codes.size();
|
||||
const char *ts = p;
|
||||
const char *te = pe;
|
||||
const char *eof = pe;
|
||||
|
||||
char *p = test;
|
||||
char *pe = p + strlen(p) + 1;
|
||||
|
||||
#line 70 ".\\scratchpad\\testragel.cpp"
|
||||
#line 96 ".\\scratchpad\\testragel.cpp"
|
||||
{
|
||||
cs = foo_start;
|
||||
ts = 0;
|
||||
te = 0;
|
||||
act = 0;
|
||||
}
|
||||
|
||||
#line 22 ".\\scratchpad\\testragel.rl"
|
||||
#line 55 ".\\scratchpad\\testragel.rl"
|
||||
|
||||
#line 73 ".\\scratchpad\\testragel.cpp"
|
||||
#line 102 ".\\scratchpad\\testragel.cpp"
|
||||
{
|
||||
int _klen;
|
||||
unsigned int _trans;
|
||||
|
|
@ -95,6 +124,18 @@ int main() {
|
|||
if ( cs == 0 )
|
||||
goto _out;
|
||||
_resume:
|
||||
_acts = _foo_actions + _foo_from_state_actions[cs];
|
||||
_nacts = (unsigned int) *_acts++;
|
||||
while ( _nacts-- > 0 ) {
|
||||
switch ( *_acts++ ) {
|
||||
case 3:
|
||||
#line 1 "NONE"
|
||||
{ts = p;}
|
||||
break;
|
||||
#line 121 ".\\scratchpad\\testragel.cpp"
|
||||
}
|
||||
}
|
||||
|
||||
_keys = _foo_trans_keys + _foo_key_offsets[cs];
|
||||
_trans = _foo_index_offsets[cs];
|
||||
|
||||
|
|
@ -144,7 +185,7 @@ _resume:
|
|||
}
|
||||
|
||||
_match:
|
||||
_trans = _foo_indicies[_trans];
|
||||
_eof_trans:
|
||||
cs = _foo_trans_targs[_trans];
|
||||
|
||||
if ( _foo_trans_actions[_trans] == 0 )
|
||||
|
|
@ -157,44 +198,102 @@ _match:
|
|||
switch ( *_acts++ )
|
||||
{
|
||||
case 0:
|
||||
#line 7 ".\\scratchpad\\testragel.rl"
|
||||
{ println("NUM1"); }
|
||||
#line 13 ".\\scratchpad\\testragel.rl"
|
||||
{
|
||||
start = p;
|
||||
}
|
||||
break;
|
||||
case 1:
|
||||
#line 7 ".\\scratchpad\\testragel.rl"
|
||||
{ println("NUM2"); }
|
||||
break;
|
||||
case 2:
|
||||
#line 7 ".\\scratchpad\\testragel.rl"
|
||||
{ res = 1; }
|
||||
break;
|
||||
case 3:
|
||||
#line 8 ".\\scratchpad\\testragel.rl"
|
||||
{ println("NUM1"); }
|
||||
#line 17 ".\\scratchpad\\testragel.rl"
|
||||
{
|
||||
size_t value = 0;
|
||||
auto [ptr, ec] = std::from_chars(start, p, value);
|
||||
dbc::check(ec == std::errc(), "error in number parsing");
|
||||
println("NUMBER {}", value);
|
||||
}
|
||||
break;
|
||||
case 4:
|
||||
#line 8 ".\\scratchpad\\testragel.rl"
|
||||
{ println("NUM2"); }
|
||||
#line 1 "NONE"
|
||||
{te = p+1;}
|
||||
break;
|
||||
case 5:
|
||||
#line 8 ".\\scratchpad\\testragel.rl"
|
||||
{ res = 2; }
|
||||
#line 33 ".\\scratchpad\\testragel.rl"
|
||||
{te = p+1;{ println("START"); }}
|
||||
break;
|
||||
#line 164 ".\\scratchpad\\testragel.cpp"
|
||||
case 6:
|
||||
#line 38 ".\\scratchpad\\testragel.rl"
|
||||
{te = p+1;{ println("END"); }}
|
||||
break;
|
||||
case 7:
|
||||
#line 34 ".\\scratchpad\\testragel.rl"
|
||||
{te = p;p--;{ println("single"); }}
|
||||
break;
|
||||
case 8:
|
||||
#line 35 ".\\scratchpad\\testragel.rl"
|
||||
{te = p;p--;{ println("basic"); }}
|
||||
break;
|
||||
case 9:
|
||||
#line 36 ".\\scratchpad\\testragel.rl"
|
||||
{te = p;p--;{ println("256 color"); }}
|
||||
break;
|
||||
case 10:
|
||||
#line 37 ".\\scratchpad\\testragel.rl"
|
||||
{te = p;p--;{ println("true color"); }}
|
||||
break;
|
||||
case 11:
|
||||
#line 34 ".\\scratchpad\\testragel.rl"
|
||||
{{p = ((te))-1;}{ println("single"); }}
|
||||
break;
|
||||
#line 222 ".\\scratchpad\\testragel.cpp"
|
||||
}
|
||||
}
|
||||
|
||||
_again:
|
||||
_acts = _foo_actions + _foo_to_state_actions[cs];
|
||||
_nacts = (unsigned int) *_acts++;
|
||||
while ( _nacts-- > 0 ) {
|
||||
switch ( *_acts++ ) {
|
||||
case 2:
|
||||
#line 1 "NONE"
|
||||
{ts = 0;}
|
||||
break;
|
||||
#line 233 ".\\scratchpad\\testragel.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 23 ".\\scratchpad\\testragel.rl"
|
||||
#line 56 ".\\scratchpad\\testragel.rl"
|
||||
}
|
||||
|
||||
int main() {
|
||||
// possibly put alphtype unsigned int?
|
||||
std::vector<std::string_view> tests = {
|
||||
"\x1B[;5;78;98m",
|
||||
"\x1B[;2;36;46;23m",
|
||||
"\x1B[36;46m",
|
||||
"\x1B[36m",
|
||||
};
|
||||
|
||||
|
||||
for(auto test : tests) {
|
||||
println("--- PARSING");
|
||||
parse_ansi(test);
|
||||
}
|
||||
|
||||
fmt::println("result = {}", res);
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue