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| Description |
| A normalized API to many buffer operations.
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| Synopsis |
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| Documentation |
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| Designate a given unit of text.
| | Constructors | | Character | a single character
| | Line | a line of text (between newlines)
| | VLine | a vertical line of text (area of text between two characters at the same column number)
| | Document | the whole document
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|  Instances | |
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| Turns a unit into its negative by inverting the boundaries. For example,
outsideUnit unitViWord will be the unit of spaces between words. For units
without boundaries (Character, Document, ...), this is the identity
function.
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| Unit that have its left and right boundaries at the left boundary of the argument unit.
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a word as in use in Emacs (fundamental mode)
delimited on the left and right by given characters, boolean argument tells if whether those are included.
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| Paragraph to implement emacs-like forward-paragraph/backward-paragraph
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| Paragraph that begins and ends in the paragraph, not the empty lines surrounding it.
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| Separator characters (space, tab, unicode separators). Most of the units
above attempt to identify words with various punctuation and symbols included
or excluded. This set of units is a simple inverse: it is true for whitespace
or separators and false for anything that is not (letters, numbers, symbols,
punctuation, whatever).
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| unitSep is true for any kind of whitespace/separator
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| unitSepThisLine is true for any kind of whitespace/separator on this line only
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| Move to the next unit boundary
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| As moveB, unless the point is at a unit boundary
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| Region of the whole textunit where the current point is.
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| Non empty region of the whole textunit where the current point is.
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| Region between the point and the next boundary.
The region is empty if the point is at the boundary.
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| Non empty region between the point and the next boundary,
In fact the region can be empty if we are at the end of file.
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| Non empty region at given point and the next boundary,
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| Repeat an action until the condition is fulfilled or the cursor stops moving.
The Action may be performed zero times.
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| Do an action if the current buffer character passes the predicate
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| Delete between point and next unit boundary, return the deleted region.
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| Generic maybe move operation.
As genMoveB, but don't move if we are at boundary already.
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| Generic move operation
Warning: moving To the (OutsideBound, Backward) bound of Document is impossible (offset -1!)
genMoveB u b d: move in direction d until encountering boundary b or unit u. See genAtBoundaryB for boundary explanation.
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| Boundary side
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genAtBoundaryB u d s returns whether the point is at a given boundary (d,s) .
Boundary (d,s) , taking Word as example, means:
Word
^^ ^^
12 34
1: (Backward,OutsideBound)
2: (Backward,InsideBound)
3: (Forward,InsideBound)
4: (Forward,OutsideBound)
rules:
genAtBoundaryB u Backward InsideBound = atBoundaryB u Backward
genAtBoundaryB u Forward OutsideBound = atBoundaryB u Forward
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| Constructors | | LineWise | | | Inclusive | | | Exclusive | | | Block | |
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| Extend the given region to boundaries of the text unit.
For instance one can extend the selection to complete lines, or
paragraphs.
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| Produced by Haddock version 2.6.1 |
