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Implement transpose-words

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This commit is contained in:
aycabta 2019-06-04 06:39:02 +09:00
parent c9b74f9fd9
commit 4b7213a85a
4 changed files with 157 additions and 1 deletions
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101
lib/reline/unicode.rb
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@ -188,6 +188,107 @@ class Reline::Unicode
[byte_size, width]
end
def self.ed_transpose_words(line, byte_pointer)
right_word_start = nil
size = get_next_mbchar_size(line, byte_pointer)
mbchar = line.byteslice(byte_pointer, size)
if size.zero?
# ' aaa bbb [cursor]'
byte_size = 0
while 0 < (byte_pointer + byte_size)
size = get_prev_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size - size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\p{Word}/
byte_size -= size
end
while 0 < (byte_pointer + byte_size)
size = get_prev_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size - size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
byte_size -= size
end
right_word_start = byte_pointer + byte_size
byte_size = 0
while line.bytesize > (byte_pointer + byte_size)
size = get_next_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
byte_size += size
end
after_start = byte_pointer + byte_size
elsif mbchar.encode(Encoding::UTF_8) =~ /\p{Word}/
# ' aaa bb[cursor]b'
byte_size = 0
while 0 < (byte_pointer + byte_size)
size = get_prev_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size - size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
byte_size -= size
end
right_word_start = byte_pointer + byte_size
byte_size = 0
while line.bytesize > (byte_pointer + byte_size)
size = get_next_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
byte_size += size
end
after_start = byte_pointer + byte_size
else
byte_size = 0
while (line.bytesize - 1) > (byte_pointer + byte_size)
size = get_next_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\p{Word}/
byte_size += size
end
if (byte_pointer + byte_size) == (line.bytesize - 1)
# ' aaa bbb [cursor] '
after_start = line.bytesize
while 0 < (byte_pointer + byte_size)
size = get_prev_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size - size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\p{Word}/
byte_size -= size
end
while 0 < (byte_pointer + byte_size)
size = get_prev_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size - size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
byte_size -= size
end
right_word_start = byte_pointer + byte_size
else
# ' aaa [cursor] bbb '
right_word_start = byte_pointer + byte_size
while line.bytesize > (byte_pointer + byte_size)
size = get_next_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
byte_size += size
end
after_start = byte_pointer + byte_size
end
end
byte_size = right_word_start - byte_pointer
while 0 < (byte_pointer + byte_size)
size = get_prev_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size - size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\p{Word}/
byte_size -= size
end
middle_start = byte_pointer + byte_size
byte_size = middle_start - byte_pointer
while 0 < (byte_pointer + byte_size)
size = get_prev_mbchar_size(line, byte_pointer + byte_size)
mbchar = line.byteslice(byte_pointer + byte_size - size, size)
break if mbchar.encode(Encoding::UTF_8) =~ /\P{Word}/
byte_size -= size
end
left_word_start = byte_pointer + byte_size
[left_word_start, middle_start, right_word_start, after_start]
end
def self.vi_big_forward_word(line, byte_pointer)
width = 0
byte_size = 0