46 lines
1.2 KiB
C++
46 lines
1.2 KiB
C++
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#include "filters.hh"
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#include "filter_registry.hh"
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#include "buffer.hh"
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namespace Kakoune
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{
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void preserve_indent(Buffer& buffer, BufferModification& modification)
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{
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if (modification.type == BufferModification::Insert and
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modification.content == "\n")
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{
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BufferIterator line_begin = buffer.iterator_at_line_begin(modification.position - 1);
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BufferIterator first_non_white = line_begin;
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while ((*first_non_white == '\t' or *first_non_white == ' ') and
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not first_non_white.is_end())
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++first_non_white;
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modification.content += buffer.string(line_begin, first_non_white);
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}
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}
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template<void (*filter_func)(Buffer&, BufferModification&)>
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class SimpleFilterFactory
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{
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public:
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SimpleFilterFactory(const std::string& id) : m_id(id) {}
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FilterAndId operator()(Buffer& buffer,
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const FilterParameters& params) const
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{
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return FilterAndId(m_id, FilterFunc(filter_func));
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}
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private:
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std::string m_id;
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};
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void register_filters()
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{
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FilterRegistry& registry = FilterRegistry::instance();
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registry.register_factory("preserve_indent", SimpleFilterFactory<preserve_indent>("preserve_indent"));
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}
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}
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