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32. Texte

This chapter describes the functions that deal with the text in a buffer. Most examine, insert, or delete text in the current buffer, often operating at point or on text adjacent to point. Many are interactive. All the functions that change the text provide for undoing the changes (voir la section Undo).

Many text-related functions operate on a region of text defined by two buffer positions passed in arguments named start and end. These arguments should be either markers (@pxref{Markers}) or numeric character positions (voir la section Positions). The order of these arguments does not matter; it is all right for start to be the end of the region and end the beginning. For example, (delete-region 1 10) and (delete-region 10 1) are equivalent. An args-out-of-range error is signaled if either start or end is outside the accessible portion of the buffer. In an interactive call, point and the mark are used for these arguments.

Throughout this chapter, “text” refers to the characters in the buffer, together with their properties (when relevant). Keep in mind that point is always between two characters, and the cursor appears on the character after point.

32.1 Examining Text Near Point   Examining text in the vicinity of point.
32.2 Examining Buffer Contents   Examining text in a general fashion.
32.3 Comparing Text   Comparing substrings of buffers.
32.4 Inserting Text   Adding new text to a buffer.
32.5 User-Level Insertion Commands   User-level commands to insert text.
32.6 Deleting Text   Removing text from a buffer.
32.7 User-Level Deletion Commands   User-level commands to delete text.
32.8 The Kill Ring   Where removed text sometimes is saved for later use.
32.9 Undo   Undoing changes to the text of a buffer.
32.10 Maintaining Undo Lists   How to enable and disable undo information. How to control how much 
information is kept.
32.11 Filling   Functions for explicit filling.
32.12 Margins for Filling   How to specify margins for filling commands.
32.13 Adaptive Fill Mode   Adaptive Fill mode chooses a fill prefix from context.
32.14 Auto Filling   How auto-fill mode is implemented to break lines.
32.15 Sorting Text   Functions for sorting parts of the buffer.
32.16 Counting Columns   Computing horizontal positions, and using them.
32.17 Indentation   Functions to insert or adjust indentation.
32.18 Case Changes   Case conversion of parts of the buffer.
32.19 Text Properties   Assigning Lisp property lists to text characters.
32.20 Substituting for a Character Code   Replacing a given character wherever it appears.
32.22 Transposition of Text   Swapping two portions of a buffer.
32.21 Registers   How registers are implemented. Accessing the text or position stored in a register.
32.23 Base 64 Encoding   Conversion to or from base 64 encoding.
32.24 MD5 Checksum   Compute the MD5 "message digest"/"checksum".
32.25 Atomic Change Groups   Installing several buffer changes "atomically".
32.26 Change Hooks   Supplying functions to be run when text is changed.
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Ce document a été généré par Eric Reinbold le 13 Octobre 2007 en utilisant texi2html 1.78.