Kyle Isom
1a77f28ce4
- Introduced `HighlighterRegistry` with support for multiple language highlighters (e.g., JSON, Markdown, Python). - Added `JsonHighlighter` implementation for basic JSON syntax highlighting.
44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
// LanguageHighlighter.h - interface for line-based highlighters
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#pragma once
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#include <memory>
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#include <vector>
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#include <string>
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#include "Highlight.h"
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class Buffer;
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namespace kte {
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class LanguageHighlighter {
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public:
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virtual ~LanguageHighlighter() = default;
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// Produce highlight spans for a given buffer row. Implementations should append to out.
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virtual void HighlightLine(const Buffer &buf, int row, std::vector<HighlightSpan> &out) const = 0;
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virtual bool Stateful() const { return false; }
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};
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// Optional extension for stateful highlighters (e.g., multi-line comments/strings).
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// Engines may detect and use this via dynamic_cast without breaking stateless impls.
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class StatefulHighlighter : public LanguageHighlighter {
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public:
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struct LineState {
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bool in_block_comment{false};
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bool in_raw_string{false};
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// For raw strings, remember the delimiter between the opening R"delim( and closing )delim"
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std::string raw_delim;
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};
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// Highlight one line given the previous line state; return the resulting state after this line.
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// Implementations should append spans for this line to out and compute the next state.
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virtual LineState HighlightLineStateful(const Buffer &buf,
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int row,
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const LineState &prev,
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std::vector<HighlightSpan> &out) const = 0;
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bool Stateful() const override { return true; }
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};
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} // namespace kte
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