47 lines
2.1 KiB
Plaintext
47 lines
2.1 KiB
Plaintext
## Maximum amount of characters per line
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decl int autowrap_column 80
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def -hidden _autowrap-break-line %{
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try %{
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## <a-:><a-;>: ensure that the cursor is located after the anchor, then reverse the
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## selection (make sure the cursor is at the beginning of the selection)
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## <a-k>(?=[^\n]*\h)(?=[^\n]*[^\h])[^\n]{%opt{autowrap_column},}[^\n]<ret>: make sure
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## the selection is wrap-able (contains at least an horizontal space, any
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## non-whitespace character, and at least "autowrap_column" characters)
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## %opt{autowrap_column}l: place the cursor on the "autowrap_column"th character
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## <a-i>w<a-;>;i<ret><esc>: move the cursor to the beginning of the word (if it overlaps
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## the "autowrap_column"th column), or do nothing if the "autowrap_column"th
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## character is a horizontal space, and insert a newline
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## <a-x>:_autowrap-break-line: select the second half of the buffer that was just split,
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## and call itself recursively until all lines in the selection
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## are correctly split
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exec -draft "<a-:><a-;>
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<a-k>(?=[^\n]*\h)(?=[^\n]*[^\h])[^\n]{%opt{autowrap_column},}[^\n]<ret>
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%opt{autowrap_column}l
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<a-i>w<a-;>;i<ret><esc>
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<a-x>:_autowrap-break-line<ret>"
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}
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}
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## Automatically wrap the selection
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def autowrap-selection -docstring "Wrap the selection" %{
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eval -draft _autowrap-break-line
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try %{
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exec -draft "<a-k>^[^\n]*\h*\n\h*[^\n]+$<ret>
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s\h*\n\h*(?=[^\z])<ret>c<ret><esc>"
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}
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}
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## Add a hook that will wrap the entire line every time a key is pressed
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def autowrap-enable -docstring "Wrap the lines in which characters are inserted" %{
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hook -group autowrap window InsertChar [^\n] %{
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exec -draft "<a-x>:autowrap-selection<ret>"
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}
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}
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## Disable the automatic line wrapping, autowrap-selection remains available though
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def autowrap-disable -docstring "Disable automatic line wrapping" %{
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rmhooks window autowrap
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}
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