Kyle Isom
ceef6af3ae
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- Implemented runtime API for registering custom highlighters. - Added optional Tree-sitter integration for advanced syntax parsing (disabled by default). - Updated buffer initialization and copying to support dynamic highlighter configuration. - Introduced `NullHighlighter` as a fallback for unsupported filetypes. - Enhanced CMake configuration with `KTE_ENABLE_TREESITTER` option.
50 lines
2.0 KiB
C++
50 lines
2.0 KiB
C++
// HighlighterRegistry.h - create/detect language highlighters and allow external registration
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#pragma once
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#include <functional>
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#include <memory>
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#include <string>
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#include <string_view>
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#include <vector>
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#include "LanguageHighlighter.h"
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namespace kte {
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class HighlighterRegistry {
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public:
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using Factory = std::function<std::unique_ptr<LanguageHighlighter>()>;
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// Create a highlighter for normalized filetype id (e.g., "cpp", "json", "markdown", "shell", "go", "python", "rust", "lisp").
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static std::unique_ptr<LanguageHighlighter> CreateFor(std::string_view filetype);
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// Detect filetype by path extension and shebang (first line).
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// Returns normalized id or empty string if unknown.
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static std::string DetectForPath(std::string_view path, std::string_view first_line);
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// Normalize various aliases/extensions to canonical ids.
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static std::string Normalize(std::string_view ft);
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// Extensibility: allow external code to register highlighters at runtime.
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// The filetype key is normalized via Normalize(). If a factory is already registered for the
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// normalized key and override=false, the existing factory is kept.
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static void Register(std::string_view filetype, Factory factory, bool override_existing = true);
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// Returns true if a factory is registered for the (normalized) filetype.
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static bool IsRegistered(std::string_view filetype);
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// Return a list of currently registered (normalized) filetypes. Primarily for diagnostics/tests.
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static std::vector<std::string> RegisteredFiletypes();
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#ifdef KTE_ENABLE_TREESITTER
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// Forward declaration to avoid hard dependency when disabled.
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struct TSLanguage;
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// Convenience: register a Tree-sitter-backed highlighter for a filetype.
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// The getter should return a non-null language pointer for the grammar.
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static void RegisterTreeSitter(std::string_view filetype,
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const TSLanguage* (*get_language)());
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#endif
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};
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} // namespace kte
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