Implement syntax highlighting

- Create a generic incremental syntax highlighting system. - Implement a ruby syntax highlighter for it.
2026-08-20 02:23:11 +01:00
parent 48fb8e3501
commit 3a41af01f9
18 changed files with 2631 additions and 28 deletions
@@ -0,0 +1,162 @@
+#include "internal/theme/theme.h"
+
+namespace bed::internal::theme {
+Theme::Theme() {
+  hl.fill({
+    .fg = 0xF0F0F0,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  });
+}
+
+Highlight Theme::get(internal::syntax::Token token) const {
+  return hl[token.type];
+}
+
+Theme Theme::default_theme() {
+  Theme theme;
+  theme.hl[internal::syntax::Token::Shebang] = {
+    .fg = 0x7DCFFF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Error] = {
+    .fg = 0xEF5168,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Comment] = {
+    .fg = 0xAAAAAA,
+    .bg = 0x000000,
+    .flags = Highlight::Italic,
+  };
+  theme.hl[internal::syntax::Token::String] = {
+    .fg = 0xAAD94C,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Escape] = {
+    .fg = 0x7DCFFF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Interpolation] = {
+    .fg = 0x7DCFFF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Regexp] = {
+    .fg = 0xD2A6FF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Number] = {
+    .fg = 0xE6C08A,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::True] = {
+    .fg = 0x7AE93C,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::False] = {
+    .fg = 0xEF5168,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Char] = {
+    .fg = 0xFFAF70,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Keyword] = {
+    .fg = 0xFF8F40,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::KeywordOperator] = {
+    .fg = 0xF07178,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Operator] = {
+    .fg = 0xFFFFFF,
+    .bg = 0x000000,
+    .flags = Highlight::Italic,
+  };
+  theme.hl[internal::syntax::Token::Function] = {
+    .fg = 0xFFAF70,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Type] = {
+    .fg = 0xF07178,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Constant] = {
+    .fg = 0x7DCFFF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::VariableInstance] = {
+    .fg = 0x95E6CB,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::VariableGlobal] = {
+    .fg = 0xF07178,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Annotation] = {
+    .fg = 0x7DCFFF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Directive] = {
+    .fg = 0xFF8F40,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Label] = {
+    .fg = 0xD2A6FF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Brace1] = {
+    .fg = 0xD2A6FF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Brace2] = {
+    .fg = 0xFFAFAF,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Brace3] = {
+    .fg = 0xFFFF00,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Brace4] = {
+    .fg = 0x0FFF0F,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  theme.hl[internal::syntax::Token::Brace5] = {
+    .fg = 0xFF0F0F,
+    .bg = 0x000000,
+    .flags = Highlight::None,
+  };
+  return theme;
+}
+
+Theme Theme::from_name(std::string_view name) {
+  if (name == "default")
+    return default_theme();
+  throw std::runtime_error("Unknown theme: " + std::string(name));
+}
+
+} // namespace bed::internal::theme