dk.salza.liq.buffer — mogenslund/liquid 1.1.3

A buffer could be considered a slider (see slider) with some extra attributes, besides attributes to keep track of name, filename, dirtyness, undo information it consists of

• A slider
• A highlighter function
• A keymap

The slider is used to keep track of the text, the highlighter function is used by the view to apply highlight and the keymap is used to decide which function a keypress should be mapped to.

On runtime the highlighter function and the keymap can be replaced.

The buffer structure is immutable, so every operation that changes the buffer will return a new one.

apply-to-slider clj

(apply-to-slider buffer fun)

Apply function to the slider in the buffer. It should take a slider as input and produce a slider as output.

backward-visual-line clj

(backward-visual-line buffer columns)

Returns a buffer where the cursor has been moved backward one visual (soft) line, taking wrap at given columns into account.

changed-on-disk? clj

(changed-on-disk? buffer)

create clj

(create name)

Creates an empty buffer with the given name.

create-from-file clj

(create-from-file path)

Creates a buffer and loads the content of a given file. The filename is stored also, to be used for save functionality.

create-slider-from-file clj

(create-slider-from-file path)

dirty? clj

(dirty? buffer)

Returns the dirty state of the buffer.

find-next clj

(find-next buffer search)

Returns a new buffer where the cursor is moved to the next occurrence of the search frase.

find-prev clj

(find-prev buffer search)

Returns a new buffer where the cursor is moved to the next occurrence of the search frase.

force-reopen-file clj

(force-reopen-file buffer)

Reopening file in buffer, ignore dirty flag.

forward-visual-line clj

(forward-visual-line buffer columns)

Returns a buffer where the cursor has been moved forward one visual (soft) line, taking wrap at given columns into account.

get-action clj

(get-action buffer keyw)

If the keymap has an action (function) for the given keyword, it will be returned.

get-filename clj

(get-filename buffer)

Returns the filename associated with the buffer.

get-highlighter clj

(get-highlighter buffer)

Returns the highlighter function associated with the buffer.

get-keymap clj

(get-keymap buffer)

Returns the keymap associated with the buffer.

get-name clj

(get-name buffer)

Returns the name associated with the buffer.

get-slider clj

(get-slider buffer)

Returns the slider in the buffer datastructure. The slider is responsible for storing and manipulating the text in the buffer.

reopen-file clj

(reopen-file buffer)

Reopen file in buffer, if the file is not dirty.

save-buffer clj

(save-buffer buffer)

If there is a filename connected with the buffer, the content of the buffer will be saved to that file.

set-dirty clj

(set-dirty buffer)

(set-dirty buffer dirty)

Sets dirty flag on the buffer. Used to mark if content has changed since last save.

set-highlighter clj

(set-highlighter buffer highlighter)

Returns a new buffer with the given highlighter set.

set-keymap clj

(set-keymap buffer keymap)

Returns a new buffer with the given keymap set.

set-point clj

(set-point buffer point)

Returns a new buffer where the cursor has been moved to the given point.

set-slider clj

(set-slider buffer sl)

set-undo-point clj

(set-undo-point buffer)

Return new buffer with the current slider to the undo stack.

tmp-buffer clj

(tmp-buffer buffer columns)

undo clj

(undo buffer)

Returns the first buffer in the undo stack.

update-mem-col clj

(update-mem-col buffer columns)

The mem-col is the column position of the cursor, from the last time the cursor was moved not up and down.

When moving the cursor up and down and passing by shorter lines the column position, when reaching a longer line again, should be restored.

This allows one to keep the current column and avoid the cursor from staying at the beginning of the line when passing an empty line.

update-modified clj

(update-modified buffer)