ed84a2d60c
Buffer begin never has a word character before, and end is always preceeded by an end-of-line. Fixes #2420
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
#ifndef buffer_utils_hh_INCLUDED
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#define buffer_utils_hh_INCLUDED
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#include "buffer.hh"
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#include "selection.hh"
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#include "utf8_iterator.hh"
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#include "unicode.hh"
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namespace Kakoune
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{
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inline String content(const Buffer& buffer, const Selection& range)
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{
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return buffer.string(range.min(), buffer.char_next(range.max()));
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}
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inline BufferCoord erase(Buffer& buffer, const Selection& range)
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{
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return buffer.erase(range.min(), buffer.char_next(range.max()));
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}
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inline BufferCoord replace(Buffer& buffer, const Selection& range, StringView content)
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{
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return buffer.replace(range.min(), buffer.char_next(range.max()), content);
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}
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inline CharCount char_length(const Buffer& buffer, const Selection& range)
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{
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return utf8::distance(buffer.iterator_at(range.min()),
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buffer.iterator_at(buffer.char_next(range.max())));
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}
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inline CharCount char_length(const Buffer& buffer, const BufferCoord& begin, const BufferCoord& end)
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{
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return utf8::distance(buffer.iterator_at(begin), buffer.iterator_at(end));
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}
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inline ColumnCount column_length(const Buffer& buffer, const BufferCoord& begin, const BufferCoord& end)
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{
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return utf8::column_distance(buffer.iterator_at(begin), buffer.iterator_at(end));
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}
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inline bool is_bol(BufferCoord coord)
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{
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return coord.column == 0;
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}
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inline bool is_eol(const Buffer& buffer, BufferCoord coord)
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{
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return buffer.is_end(coord) or buffer[coord.line].length() == coord.column+1;
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}
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inline bool is_bow(const Buffer& buffer, BufferCoord coord)
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{
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auto it = utf8::iterator<BufferIterator>(buffer.iterator_at(coord), buffer);
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if (coord == BufferCoord{0,0})
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return is_word(*it);
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return not is_word(*(it-1)) and is_word(*it);
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}
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inline bool is_eow(const Buffer& buffer, BufferCoord coord)
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{
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if (buffer.is_end(coord) or coord == BufferCoord{0,0})
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return false;
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auto it = utf8::iterator<BufferIterator>(buffer.iterator_at(coord), buffer);
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return is_word(*(it-1)) and not is_word(*it);
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}
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ColumnCount get_column(const Buffer& buffer,
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ColumnCount tabstop, BufferCoord coord);
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ByteCount get_byte_to_column(const Buffer& buffer, ColumnCount tabstop,
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DisplayCoord coord);
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Buffer* create_fifo_buffer(String name, int fd, Buffer::Flags flags, bool scroll = false);
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Buffer* open_file_buffer(StringView filename,
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Buffer::Flags flags = Buffer::Flags::None);
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Buffer* open_or_create_file_buffer(StringView filename,
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Buffer::Flags flags = Buffer::Flags::None);
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void reload_file_buffer(Buffer& buffer);
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void write_to_debug_buffer(StringView str);
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}
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#endif // buffer_utils_hh_INCLUDED
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