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99 lines
1.7 KiB
99 lines
1.7 KiB
#include <fmt/core.h>
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#include <string>
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#include <vector>
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#include <string_view>
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#include <charconv>
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#include "dbc.hpp"
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using namespace fmt;
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%%{
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machine foo;
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action tstart {
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start = fpc;
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}
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action number {
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auto [ptr, ec] = std::from_chars(start, fpc, value);
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dbc::check(ec == std::errc(), "error in number parsing");
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println("NUMBER {}", value);
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}
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action color256 {
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println("256 color");
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}
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action color24b {
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println("true color");
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}
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action colorSingle {
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println("single color");
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}
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action colorBasic {
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println("basic color");
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}
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action bg {
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println("BG");
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}
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action fg {
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println("FG");
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}
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start = 0x1B "[";
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fg = "38;" %fg;
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bg = "48;" %bg;
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num = digit+ >tstart %number;
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color256 = "5;" num ";" num;
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color24b = "2;" num ";" num ";" num;
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basic = num ";" num;
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single = num;
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main := (
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start %{ println("START"); }
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(
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(fg|bg) color256 %color256 |
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(fg|bg) color24b %color24b |
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single %colorSingle |
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basic %colorBasic
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)**
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"m" %{ println("END"); }
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)**;
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}%%
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%% write data;
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void parse_ansi(std::string_view &codes) {
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const char *start = NULL;
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int cs = 0;
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size_t value = 0;
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const char *p = codes.data();
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const char *pe = p + codes.size();
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const char *eof = pe;
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%% write init;
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%% write exec;
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}
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int main() {
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// possibly put alphtype unsigned int?
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std::vector<std::string_view> tests = {
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"\x1B[38;5;78;98m",
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"\x1B[48;5;78;98m",
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"\x1B[38;2;36;46;23m",
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"\x1B[48;2;36;46;23m",
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"\x1B[36;46m",
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"\x1B[36m",
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};
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for(auto test : tests) {
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println("--- PARSING");
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parse_ansi(test);
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}
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return 0;
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}
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