Daniel Engeler <engeler at gmail.com>
[bpt/emacs.git] / doc / lispref / elisp.texi
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1\input texinfo @c -*-texinfo-*-
2@c %**start of header
3@setfilename elisp
4@settitle GNU Emacs Lisp Reference Manual
5@c %**end of header
6
7@c Version of the manual and of Emacs.
8@c Please remember to update the edition number in README as well.
9@set VERSION 2.9
1291fd36 10@set EMACSVER 23.0.60
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12@c in general, keep the following line commented out, unless doing a
13@c copy of this manual that will be published. The manual should go
14@c onto the distribution in the full, 8.5 x 11" size.
15@c set smallbook
16
17@ifset smallbook
18@smallbook
19@end ifset
20
21@c per rms and peterb, use 10pt fonts for the main text, mostly to
22@c save on paper cost.
23@c Do this inside @tex for now, so current makeinfo does not complain.
24@tex
25@ifset smallbook
26@fonttextsize 10
27@set EMACSVER 22.1
28\global\let\urlcolor=\Black % don't print links in grayscale
29\global\let\linkcolor=\Black
30@end ifset
31\global\hbadness=6666 % don't worry about not-too-underfull boxes
32@end tex
33
34@c Combine indices.
35@synindex cp fn
36@syncodeindex vr fn
37@syncodeindex ky fn
38@syncodeindex pg fn
39@c We use the "type index" to index new functions and variables.
40@c @syncodeindex tp fn
41
42@copying
43This is edition @value{VERSION} of the GNU Emacs Lisp Reference Manual,@*
44corresponding to Emacs version @value{EMACSVER}.
45
46Copyright @copyright{} 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998,
57ebf0be 471999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
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48Foundation, Inc.
49
50@quotation
51Permission is granted to copy, distribute and/or modify this document
52under the terms of the GNU Free Documentation License, Version 1.2 or
53any later version published by the Free Software Foundation; with the
54Invariant Sections being ``GNU General Public License,'' with the
55Front-Cover texts being ``A GNU Manual,'' and with the Back-Cover
56Texts as in (a) below. A copy of the license is included in the
57section entitled ``GNU Free Documentation License.''
58
59(a) The FSF's Back-Cover Text is: ``You are free to copy and modify
60this GNU Manual. Buying copies from GNU Press supports the FSF in
61developing GNU and promoting software freedom.''
62@end quotation
63@end copying
64
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65@dircategory Emacs
66@direntry
67* Elisp: (elisp). The Emacs Lisp Reference Manual.
68@end direntry
69
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70@titlepage
71@title GNU Emacs Lisp Reference Manual
72@subtitle For Emacs Version @value{EMACSVER}
73@subtitle Revision @value{VERSION}, April 2007
74
75@author by Bil Lewis, Dan LaLiberte, Richard Stallman
76@author and the GNU Manual Group
77@page
78@vskip 0pt plus 1filll
79@insertcopying
80
81@sp 2
82Published by the Free Software Foundation @*
8351 Franklin St, Fifth Floor @*
84Boston, MA 02110-1301 @*
85USA @*
86ISBN 1-882114-74-4
87
88@sp 2
89Cover art by Etienne Suvasa.
90@end titlepage
91
92
93@c Print the tables of contents
94@summarycontents
95@contents
96
97
98@ifnottex
99@node Top, Introduction, (dir), (dir)
100@top Emacs Lisp
101
102This Info file contains edition @value{VERSION} of the GNU Emacs Lisp
103Reference Manual, corresponding to GNU Emacs version @value{EMACSVER}.
104@end ifnottex
105
106@menu
107* Introduction:: Introduction and conventions used.
108
109* Lisp Data Types:: Data types of objects in Emacs Lisp.
110* Numbers:: Numbers and arithmetic functions.
111* Strings and Characters:: Strings, and functions that work on them.
112* Lists:: Lists, cons cells, and related functions.
113* Sequences Arrays Vectors:: Lists, strings and vectors are called sequences.
114 Certain functions act on any kind of sequence.
115 The description of vectors is here as well.
116* Hash Tables:: Very fast lookup-tables.
117* Symbols:: Symbols represent names, uniquely.
118
119* Evaluation:: How Lisp expressions are evaluated.
120* Control Structures:: Conditionals, loops, nonlocal exits.
121* Variables:: Using symbols in programs to stand for values.
122* Functions:: A function is a Lisp program
123 that can be invoked from other functions.
124* Macros:: Macros are a way to extend the Lisp language.
125* Customization:: Writing customization declarations.
126
127* Loading:: Reading files of Lisp code into Lisp.
128* Byte Compilation:: Compilation makes programs run faster.
129* Advising Functions:: Adding to the definition of a function.
130* Debugging:: Tools and tips for debugging Lisp programs.
131
132* Read and Print:: Converting Lisp objects to text and back.
133* Minibuffers:: Using the minibuffer to read input.
134* Command Loop:: How the editor command loop works,
135 and how you can call its subroutines.
136* Keymaps:: Defining the bindings from keys to commands.
137* Modes:: Defining major and minor modes.
138* Documentation:: Writing and using documentation strings.
139
140* Files:: Accessing files.
141* Backups and Auto-Saving:: Controlling how backups and auto-save
142 files are made.
143* Buffers:: Creating and using buffer objects.
144* Windows:: Manipulating windows and displaying buffers.
145* Frames:: Making multiple system-level windows.
146* Positions:: Buffer positions and motion functions.
147* Markers:: Markers represent positions and update
148 automatically when the text is changed.
149
150* Text:: Examining and changing text in buffers.
151* Non-ASCII Characters:: Non-ASCII text in buffers and strings.
152* Searching and Matching:: Searching buffers for strings or regexps.
153* Syntax Tables:: The syntax table controls word and list parsing.
154* Abbrevs:: How Abbrev mode works, and its data structures.
155
156* Processes:: Running and communicating with subprocesses.
157* Display:: Features for controlling the screen display.
158* System Interface:: Getting the user id, system type, environment
159 variables, and other such things.
160
161Appendices
162
163* Antinews:: Info for users downgrading to Emacs 21.
164* GNU Free Documentation License:: The license for this documentation
165* GPL:: Conditions for copying and changing GNU Emacs.
166* Tips:: Advice and coding conventions for Emacs Lisp.
167* GNU Emacs Internals:: Building and dumping Emacs;
168 internal data structures.
169* Standard Errors:: List of all error symbols.
170* Standard Buffer-Local Variables::
171 List of variables buffer-local in all buffers.
172* Standard Keymaps:: List of standard keymaps.
173* Standard Hooks:: List of standard hook variables.
174
175* Index:: Index including concepts, functions, variables,
176 and other terms.
177
178@ignore
179* New Symbols:: New functions and variables in Emacs @value{EMACSVER}.
180@end ignore
181
182@c Do NOT modify the following 3 lines! They must have this form to
183@c be correctly identified by `texinfo-multiple-files-update'. In
184@c particular, the detailed menu header line MUST be identical to the
185@c value of `texinfo-master-menu-header'. See texnfo-upd.el.
186
187@detailmenu
188 --- The Detailed Node Listing ---
189 ---------------------------------
190
191Here are other nodes that are inferiors of those already listed,
192mentioned here so you can get to them in one step:
193
194Introduction
195
196* Caveats:: Flaws and a request for help.
197* Lisp History:: Emacs Lisp is descended from Maclisp.
198* Conventions:: How the manual is formatted.
199* Version Info:: Which Emacs version is running?
200* Acknowledgements:: The authors, editors, and sponsors of this manual.
201
202Conventions
203
204* Some Terms:: Explanation of terms we use in this manual.
205* nil and t:: How the symbols @code{nil} and @code{t} are used.
206* Evaluation Notation:: The format we use for examples of evaluation.
207* Printing Notation:: The format we use for examples that print output.
208* Error Messages:: The format we use for examples of errors.
209* Buffer Text Notation:: The format we use for buffer contents in examples.
210* Format of Descriptions:: Notation for describing functions, variables, etc.
211
212Format of Descriptions
213
214* A Sample Function Description:: A description of an imaginary
215 function, @code{foo}.
216* A Sample Variable Description:: A description of an imaginary
217 variable, @code{electric-future-map}.
218
219Lisp Data Types
220
221* Printed Representation:: How Lisp objects are represented as text.
222* Comments:: Comments and their formatting conventions.
223* Programming Types:: Types found in all Lisp systems.
224* Editing Types:: Types specific to Emacs.
225* Circular Objects:: Read syntax for circular structure.
226* Type Predicates:: Tests related to types.
227* Equality Predicates:: Tests of equality between any two objects.
228
229Programming Types
230
231* Integer Type:: Numbers without fractional parts.
232* Floating Point Type:: Numbers with fractional parts and with a large range.
233* Character Type:: The representation of letters, numbers and
234 control characters.
235* Symbol Type:: A multi-use object that refers to a function,
236 variable, property list, or itself.
237* Sequence Type:: Both lists and arrays are classified as sequences.
238* Cons Cell Type:: Cons cells, and lists (which are made from cons cells).
239* Array Type:: Arrays include strings and vectors.
240* String Type:: An (efficient) array of characters.
241* Vector Type:: One-dimensional arrays.
242* Char-Table Type:: One-dimensional sparse arrays indexed by characters.
243* Bool-Vector Type:: One-dimensional arrays of @code{t} or @code{nil}.
244* Hash Table Type:: Super-fast lookup tables.
245* Function Type:: A piece of executable code you can call from elsewhere.
246* Macro Type:: A method of expanding an expression into another
247 expression, more fundamental but less pretty.
248* Primitive Function Type:: A function written in C, callable from Lisp.
249* Byte-Code Type:: A function written in Lisp, then compiled.
250* Autoload Type:: A type used for automatically loading seldom-used
251 functions.
252
253Character Type
254
255* Basic Char Syntax:: Syntax for regular characters.
256* General Escape Syntax:: How to specify characters by their codes.
257* Ctl-Char Syntax:: Syntax for control characters.
258* Meta-Char Syntax:: Syntax for meta-characters.
259* Other Char Bits:: Syntax for hyper-, super-, and alt-characters.
260
261Cons Cell and List Types
262
263* Box Diagrams:: Drawing pictures of lists.
264* Dotted Pair Notation:: An alternative syntax for lists.
265* Association List Type:: A specially constructed list.
266
267String Type
268
269* Syntax for Strings:: How to specify Lisp strings.
270* Non-ASCII in Strings:: International characters in strings.
271* Nonprinting Characters:: Literal unprintable characters in strings.
272* Text Props and Strings:: Strings with text properties.
273
274Editing Types
275
276* Buffer Type:: The basic object of editing.
277* Marker Type:: A position in a buffer.
278* Window Type:: What makes buffers visible.
279* Frame Type:: Windows subdivide frames.
280* Window Configuration Type:: Recording the way a frame is subdivided.
281* Frame Configuration Type:: Recording the status of all frames.
282* Process Type:: A process running on the underlying OS.
283* Stream Type:: Receive or send characters.
284* Keymap Type:: What function a keystroke invokes.
285* Overlay Type:: How an overlay is represented.
286
287Numbers
288
289* Integer Basics:: Representation and range of integers.
290* Float Basics:: Representation and range of floating point.
291* Predicates on Numbers:: Testing for numbers.
292* Comparison of Numbers:: Equality and inequality predicates.
293* Numeric Conversions:: Converting float to integer and vice versa.
294* Arithmetic Operations:: How to add, subtract, multiply and divide.
295* Rounding Operations:: Explicitly rounding floating point numbers.
296* Bitwise Operations:: Logical and, or, not, shifting.
297* Math Functions:: Trig, exponential and logarithmic functions.
298* Random Numbers:: Obtaining random integers, predictable or not.
299
300Strings and Characters
301
302* String Basics:: Basic properties of strings and characters.
303* Predicates for Strings:: Testing whether an object is a string or char.
304* Creating Strings:: Functions to allocate new strings.
305* Modifying Strings:: Altering the contents of an existing string.
306* Text Comparison:: Comparing characters or strings.
307* String Conversion:: Converting characters to strings and vice versa.
308* Formatting Strings:: @code{format}: Emacs's analogue of @code{printf}.
309* Case Conversion:: Case conversion functions.
310* Case Tables:: Customizing case conversion.
311
312Lists
313
314* Cons Cells:: How lists are made out of cons cells.
315* List-related Predicates:: Is this object a list? Comparing two lists.
316* List Elements:: Extracting the pieces of a list.
317* Building Lists:: Creating list structure.
318* List Variables:: Modifying lists stored in variables.
319* Modifying Lists:: Storing new pieces into an existing list.
320* Sets And Lists:: A list can represent a finite mathematical set.
321* Association Lists:: A list can represent a finite relation or mapping.
322* Rings:: Managing a fixed-size ring of objects.
323
324Modifying Existing List Structure
325
326* Setcar:: Replacing an element in a list.
327* Setcdr:: Replacing part of the list backbone.
328 This can be used to remove or add elements.
329* Rearrangement:: Reordering the elements in a list; combining lists.
330
331Sequences, Arrays, and Vectors
332
333* Sequence Functions:: Functions that accept any kind of sequence.
334* Arrays:: Characteristics of arrays in Emacs Lisp.
335* Array Functions:: Functions specifically for arrays.
336* Vectors:: Special characteristics of Emacs Lisp vectors.
337* Vector Functions:: Functions specifically for vectors.
338* Char-Tables:: How to work with char-tables.
339* Bool-Vectors:: How to work with bool-vectors.
340
341Hash Tables
342
343* Creating Hash:: Functions to create hash tables.
344* Hash Access:: Reading and writing the hash table contents.
345* Defining Hash:: Defining new comparison methods
346* Other Hash:: Miscellaneous.
347
348Symbols
349
350* Symbol Components:: Symbols have names, values, function definitions
351 and property lists.
352* Definitions:: A definition says how a symbol will be used.
353* Creating Symbols:: How symbols are kept unique.
354* Property Lists:: Each symbol has a property list
355 for recording miscellaneous information.
356
357Property Lists
358
359* Plists and Alists:: Comparison of the advantages of property
360 lists and association lists.
361* Symbol Plists:: Functions to access symbols' property lists.
362* Other Plists:: Accessing property lists stored elsewhere.
363
364Evaluation
365
366* Intro Eval:: Evaluation in the scheme of things.
367* Forms:: How various sorts of objects are evaluated.
368* Quoting:: Avoiding evaluation (to put constants in
369 the program).
370* Eval:: How to invoke the Lisp interpreter explicitly.
371
372Kinds of Forms
373
374* Self-Evaluating Forms:: Forms that evaluate to themselves.
375* Symbol Forms:: Symbols evaluate as variables.
376* Classifying Lists:: How to distinguish various sorts of list forms.
377* Function Indirection:: When a symbol appears as the car of a list,
378 we find the real function via the symbol.
379* Function Forms:: Forms that call functions.
380* Macro Forms:: Forms that call macros.
381* Special Forms:: "Special forms" are idiosyncratic primitives,
382 most of them extremely important.
383* Autoloading:: Functions set up to load files
384 containing their real definitions.
385
386Control Structures
387
388* Sequencing:: Evaluation in textual order.
389* Conditionals:: @code{if}, @code{cond}, @code{when}, @code{unless}.
390* Combining Conditions:: @code{and}, @code{or}, @code{not}.
391* Iteration:: @code{while} loops.
392* Nonlocal Exits:: Jumping out of a sequence.
393
394Nonlocal Exits
395
396* Catch and Throw:: Nonlocal exits for the program's own purposes.
397* Examples of Catch:: Showing how such nonlocal exits can be written.
398* Errors:: How errors are signaled and handled.
399* Cleanups:: Arranging to run a cleanup form if an
400 error happens.
401
402Errors
403
404* Signaling Errors:: How to report an error.
405* Processing of Errors:: What Emacs does when you report an error.
406* Handling Errors:: How you can trap errors and continue execution.
407* Error Symbols:: How errors are classified for trapping them.
408* Standard Errors:: List of all error symbols.
409
410Variables
411
412* Global Variables:: Variable values that exist permanently, everywhere.
413* Constant Variables:: Certain "variables" have values that never change.
414* Local Variables:: Variable values that exist only temporarily.
415* Void Variables:: Symbols that lack values.
416* Defining Variables:: A definition says a symbol is used as a variable.
417* Tips for Defining:: Things you should think about when you
418 define a variable.
419* Accessing Variables:: Examining values of variables whose names
420 are known only at run time.
421* Setting Variables:: Storing new values in variables.
422* Variable Scoping:: How Lisp chooses among local and global values.
423* Buffer-Local Variables:: Variable values in effect only in one buffer.
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424* Future Local Variables:: New kinds of local values we might add some day.
425* File Local Variables:: Handling local variable lists in files.
426* Variable Aliases:: Variables that are aliases for other variables.
427* Variables with Restricted Values:: Non-constant variables whose value can
428 @emph{not} be an arbitrary Lisp object.
429* Standard Buffer-Local Variables::
430 List of variables buffer-local in all buffers.
431
432Scoping Rules for Variable Bindings
433
434* Scope:: Scope means where in the program a value
435 is visible. Comparison with other languages.
436* Extent:: Extent means how long in time a value exists.
437* Impl of Scope:: Two ways to implement dynamic scoping.
438* Using Scoping:: How to use dynamic scoping carefully and
439 avoid problems.
440
441Buffer-Local Variables
442
443* Intro to Buffer-Local:: Introduction and concepts.
444* Creating Buffer-Local:: Creating and destroying buffer-local bindings.
445* Default Value:: The default value is seen in buffers
446 that don't have their own buffer-local values.
447
448Functions
449
450* What Is a Function:: Lisp functions vs primitives; terminology.
451* Lambda Expressions:: How functions are expressed as Lisp objects.
452* Function Names:: A symbol can serve as the name of a function.
453* Defining Functions:: Lisp expressions for defining functions.
454* Calling Functions:: How to use an existing function.
455* Mapping Functions:: Applying a function to each element of a list, etc.
456* Anonymous Functions:: Lambda-expressions are functions with no names.
457* Function Cells:: Accessing or setting the function definition
458 of a symbol.
459* Obsolete Functions:: Declaring functions obsolete.
460* Inline Functions:: Defining functions that the compiler will open code.
461* Function Safety:: Determining whether a function is safe to call.
462* Related Topics:: Cross-references to specific Lisp primitives
463 that have a special bearing on how
464 functions work.
465
466Lambda Expressions
467
468* Lambda Components:: The parts of a lambda expression.
469* Simple Lambda:: A simple example.
470* Argument List:: Details and special features of argument lists.
471* Function Documentation:: How to put documentation in a function.
472
473Macros
474
475* Simple Macro:: A basic example.
476* Expansion:: How, when and why macros are expanded.
477* Compiling Macros:: How macros are expanded by the compiler.
478* Defining Macros:: How to write a macro definition.
479* Backquote:: Easier construction of list structure.
480* Problems with Macros:: Don't evaluate the macro arguments too many times.
481 Don't hide the user's variables.
482* Indenting Macros:: Specifying how to indent macro calls.
483
484Common Problems Using Macros
485
486* Wrong Time:: Do the work in the expansion, not in the macro.
487* Argument Evaluation:: The expansion should evaluate each macro arg once.
488* Surprising Local Vars:: Local variable bindings in the expansion
489 require special care.
490* Eval During Expansion:: Don't evaluate them; put them in the expansion.
491* Repeated Expansion:: Avoid depending on how many times expansion is done.
492
493Writing Customization Definitions
494
495* Common Keywords:: Common keyword arguments for all kinds of
496 customization declarations.
497* Group Definitions:: Writing customization group definitions.
498* Variable Definitions:: Declaring user options.
499* Customization Types:: Specifying the type of a user option.
500
501Customization Types
502
503* Simple Types:: Simple customization types: sexp, integer, number,
504 string, file, directory, alist.
505* Composite Types:: Build new types from other types or data.
506* Splicing into Lists:: Splice elements into list with @code{:inline}.
507* Type Keywords:: Keyword-argument pairs in a customization type.
508* Defining New Types:: Give your type a name.
509
510Loading
511
512* How Programs Do Loading:: The @code{load} function and others.
513* Load Suffixes:: Details about the suffixes that @code{load} tries.
514* Library Search:: Finding a library to load.
515* Loading Non-ASCII:: Non-@acronym{ASCII} characters in Emacs Lisp files.
516* Autoload:: Setting up a function to autoload.
517* Repeated Loading:: Precautions about loading a file twice.
518* Named Features:: Loading a library if it isn't already loaded.
519* Where Defined:: Finding which file defined a certain symbol.
520* Unloading:: How to "unload" a library that was loaded.
521* Hooks for Loading:: Providing code to be run when
522 particular libraries are loaded.
523
524Byte Compilation
525
526* Speed of Byte-Code:: An example of speedup from byte compilation.
527* Compilation Functions:: Byte compilation functions.
528* Docs and Compilation:: Dynamic loading of documentation strings.
529* Dynamic Loading:: Dynamic loading of individual functions.
530* Eval During Compile:: Code to be evaluated when you compile.
531* Compiler Errors:: Handling compiler error messages.
532* Byte-Code Objects:: The data type used for byte-compiled functions.
533* Disassembly:: Disassembling byte-code; how to read byte-code.
534
535Advising Emacs Lisp Functions
536
537* Simple Advice:: A simple example to explain the basics of advice.
538* Defining Advice:: Detailed description of @code{defadvice}.
539* Around-Advice:: Wrapping advice around a function's definition.
540* Computed Advice:: ...is to @code{defadvice} as @code{fset} is to @code{defun}.
541* Activation of Advice:: Advice doesn't do anything until you activate it.
542* Enabling Advice:: You can enable or disable each piece of advice.
543* Preactivation:: Preactivation is a way of speeding up the
544 loading of compiled advice.
545* Argument Access in Advice:: How advice can access the function's arguments.
546* Advising Primitives:: Accessing arguments when advising a primitive.
547* Combined Definition:: How advice is implemented.
548
549Debugging Lisp Programs
550
551* Debugger:: How the Emacs Lisp debugger is implemented.
552* Edebug:: A source-level Emacs Lisp debugger.
553* Syntax Errors:: How to find syntax errors.
554* Test Coverage:: Ensuring you have tested all branches in your code.
555* Compilation Errors:: How to find errors that show up in
556 byte compilation.
557
558The Lisp Debugger
559
560* Error Debugging:: Entering the debugger when an error happens.
561* Infinite Loops:: Stopping and debugging a program that doesn't exit.
562* Function Debugging:: Entering it when a certain function is called.
563* Explicit Debug:: Entering it at a certain point in the program.
564* Using Debugger:: What the debugger does; what you see while in it.
565* Debugger Commands:: Commands used while in the debugger.
566* Invoking the Debugger:: How to call the function @code{debug}.
567* Internals of Debugger:: Subroutines of the debugger, and global variables.
568
569Edebug
570
571* Using Edebug:: Introduction to use of Edebug.
572* Instrumenting:: You must instrument your code
573 in order to debug it with Edebug.
574* Edebug Execution Modes:: Execution modes, stopping more or less often.
575* Jumping:: Commands to jump to a specified place.
576* Edebug Misc:: Miscellaneous commands.
577* Breaks:: Setting breakpoints to make the program stop.
578* Trapping Errors:: Trapping errors with Edebug.
579* Edebug Views:: Views inside and outside of Edebug.
580* Edebug Eval:: Evaluating expressions within Edebug.
581* Eval List:: Expressions whose values are displayed
582 each time you enter Edebug.
583* Printing in Edebug:: Customization of printing.
584* Trace Buffer:: How to produce trace output in a buffer.
585* Coverage Testing:: How to test evaluation coverage.
586* The Outside Context:: Data that Edebug saves and restores.
587* Edebug and Macros:: Specifying how to handle macro calls.
588* Edebug Options:: Option variables for customizing Edebug.
589
590Debugging Invalid Lisp Syntax
591
592* Excess Open:: How to find a spurious open paren or missing close.
593* Excess Close:: How to find a spurious close paren or missing open.
594
595Reading and Printing Lisp Objects
596
597* Streams Intro:: Overview of streams, reading and printing.
598* Input Streams:: Various data types that can be used as
599 input streams.
600* Input Functions:: Functions to read Lisp objects from text.
601* Output Streams:: Various data types that can be used as
602 output streams.
603* Output Functions:: Functions to print Lisp objects as text.
604* Output Variables:: Variables that control what the printing
605 functions do.
606
607Minibuffers
608
609* Intro to Minibuffers:: Basic information about minibuffers.
610* Text from Minibuffer:: How to read a straight text string.
611* Object from Minibuffer:: How to read a Lisp object or expression.
612* Minibuffer History:: Recording previous minibuffer inputs
613 so the user can reuse them.
614* Initial Input:: Specifying initial contents for the minibuffer.
615* Completion:: How to invoke and customize completion.
616* Yes-or-No Queries:: Asking a question with a simple answer.
617* Multiple Queries:: Asking a series of similar questions.
618* Reading a Password:: Reading a password from the terminal.
619* Minibuffer Commands:: Commands used as key bindings in minibuffers.
620* Minibuffer Contents:: How such commands access the minibuffer text.
621* Minibuffer Windows:: Operating on the special minibuffer windows.
622* Recursive Mini:: Whether recursive entry to minibuffer is allowed.
623* Minibuffer Misc:: Various customization hooks and variables.
624
625Completion
626
627* Basic Completion:: Low-level functions for completing strings.
628 (These are too low level to use the minibuffer.)
629* Minibuffer Completion:: Invoking the minibuffer with completion.
630* Completion Commands:: Minibuffer commands that do completion.
631* High-Level Completion:: Convenient special cases of completion
632 (reading buffer name, file name, etc.)
633* Reading File Names:: Using completion to read file names.
634* Programmed Completion:: Finding the completions for a given file name.
635
636Command Loop
637
638* Command Overview:: How the command loop reads commands.
639* Defining Commands:: Specifying how a function should read arguments.
640* Interactive Call:: Calling a command, so that it will read arguments.
61bbdbc6 641* Distinguish Interactive:: Making a command distinguish interactive calls.
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642* Command Loop Info:: Variables set by the command loop for you to examine.
643* Adjusting Point:: Adjustment of point after a command.
644* Input Events:: What input looks like when you read it.
645* Reading Input:: How to read input events from the keyboard or mouse.
646* Special Events:: Events processed immediately and individually.
647* Waiting:: Waiting for user input or elapsed time.
648* Quitting:: How @kbd{C-g} works. How to catch or defer quitting.
649* Prefix Command Arguments:: How the commands to set prefix args work.
650* Recursive Editing:: Entering a recursive edit,
651 and why you usually shouldn't.
652* Disabling Commands:: How the command loop handles disabled commands.
653* Command History:: How the command history is set up, and how accessed.
654* Keyboard Macros:: How keyboard macros are implemented.
655
656Defining Commands
657
658* Using Interactive:: General rules for @code{interactive}.
659* Interactive Codes:: The standard letter-codes for reading arguments
660 in various ways.
661* Interactive Examples:: Examples of how to read interactive arguments.
662
663Input Events
664
665* Keyboard Events:: Ordinary characters--keys with symbols on them.
666* Function Keys:: Function keys--keys with names, not symbols.
667* Mouse Events:: Overview of mouse events.
668* Click Events:: Pushing and releasing a mouse button.
669* Drag Events:: Moving the mouse before releasing the button.
670* Button-Down Events:: A button was pushed and not yet released.
671* Repeat Events:: Double and triple click (or drag, or down).
672* Motion Events:: Just moving the mouse, not pushing a button.
673* Focus Events:: Moving the mouse between frames.
674* Misc Events:: Other events the system can generate.
675* Event Examples:: Examples of the lists for mouse events.
676* Classifying Events:: Finding the modifier keys in an event symbol.
f1c15283
RS
677* Accessing Mouse:: Functions to extract info from mouse events.
678* Accessing Scroll:: Functions to get info from scroll bar events.
b8d4c8d0
GM
679* Strings of Events:: Special considerations for putting
680 keyboard character events in a string.
681
682Reading Input
683
684* Key Sequence Input:: How to read one key sequence.
685* Reading One Event:: How to read just one event.
686* Event Mod:: How Emacs modifies events as they are read.
687* Invoking the Input Method:: How reading an event uses the input method.
688* Quoted Character Input:: Asking the user to specify a character.
689* Event Input Misc:: How to reread or throw away input events.
690
691Keymaps
692
693* Key Sequences:: Key sequences as Lisp objects.
694* Keymap Basics:: Basic concepts of keymaps.
695* Format of Keymaps:: What a keymap looks like as a Lisp object.
696* Creating Keymaps:: Functions to create and copy keymaps.
697* Inheritance and Keymaps:: How one keymap can inherit the bindings
698 of another keymap.
699* Prefix Keys:: Defining a key with a keymap as its definition.
700* Active Keymaps:: How Emacs searches the active keymaps
701 for a key binding.
702* Searching Keymaps:: A pseudo-Lisp summary of searching active maps.
703* Controlling Active Maps:: Each buffer has a local keymap
704 to override the standard (global) bindings.
705 A minor mode can also override them.
706* Key Lookup:: How extracting elements from keymaps works.
707* Functions for Key Lookup:: How to request key lookup.
708* Changing Key Bindings:: Redefining a key in a keymap.
709* Remapping Commands:: A keymap can translate one command to another.
710* Translation Keymaps:: Keymaps for translating sequences of events.
711* Key Binding Commands:: Interactive interfaces for redefining keys.
712* Scanning Keymaps:: Looking through all keymaps, for printing help.
713* Menu Keymaps:: A keymap can define a menu for X
714 or for use from the terminal.
715* Standard Keymaps:: List of standard keymaps.
716
717Major and Minor Modes
718
719* Hooks:: How to use hooks; how to write code that
720 provides hooks.
721* Major Modes:: Defining major modes.
722* Minor Modes:: Defining minor modes.
723* Mode Line Format:: Customizing the text that appears in the mode line.
724* Imenu:: How a mode can provide a menu
725 of definitions in the buffer.
726* Font Lock Mode:: How modes can highlight text according to syntax.
727* Desktop Save Mode:: How modes can have buffer state saved between
728 Emacs sessions.
729
730Menu Keymaps
731
732* Defining Menus:: How to make a keymap that defines a menu.
733* Mouse Menus:: How users actuate the menu with the mouse.
734* Keyboard Menus:: How users actuate the menu with the keyboard.
735* Menu Example:: Making a simple menu.
736* Menu Bar:: How to customize the menu bar.
737* Tool Bar:: A tool bar is a row of images.
738* Modifying Menus:: How to add new items to a menu.
739
740Defining Menus
741
742* Simple Menu Items:: A simple kind of menu key binding,
743 limited in capabilities.
744* Extended Menu Items:: More powerful menu item definitions
745 let you specify keywords to enable
746 various features.
747* Menu Separators:: Drawing a horizontal line through a menu.
748* Alias Menu Items:: Using command aliases in menu items.
749
750Major and Minor Modes
751
752* Hooks:: How to use hooks; how to write code that provides hooks.
753* Major Modes:: Defining major modes.
754* Minor Modes:: Defining minor modes.
755* Mode Line Format:: Customizing the text that appears in the mode line.
756* Imenu:: How a mode can provide a menu
757 of definitions in the buffer.
758* Font Lock Mode:: How modes can highlight text according to syntax.
759* Desktop Save Mode:: How modes can have buffer state saved between
760 Emacs sessions.
761
762Major Modes
763
764* Major Mode Basics::
765* Major Mode Conventions:: Coding conventions for keymaps, etc.
766* Example Major Modes:: Text mode and Lisp modes.
767* Auto Major Mode:: How Emacs chooses the major mode automatically.
768* Mode Help:: Finding out how to use a mode.
769* Derived Modes:: Defining a new major mode based on another major
770 mode.
771* Generic Modes:: Defining a simple major mode that supports
772 comment syntax and Font Lock mode.
773* Mode Hooks:: Hooks run at the end of major mode functions.
774
775Minor Modes
776
777* Minor Mode Conventions:: Tips for writing a minor mode.
778* Keymaps and Minor Modes:: How a minor mode can have its own keymap.
779* Defining Minor Modes:: A convenient facility for defining minor modes.
780
781Mode Line Format
782
783* Mode Line Basics::
784* Mode Line Data:: The data structure that controls the mode line.
785* Mode Line Variables:: Variables used in that data structure.
786* %-Constructs:: Putting information into a mode line.
787* Properties in Mode:: Using text properties in the mode line.
788* Header Lines:: Like a mode line, but at the top.
789* Emulating Mode Line:: Formatting text as the mode line would.
790
791Font Lock Mode
792
793* Font Lock Basics:: Overview of customizing Font Lock.
794* Search-based Fontification:: Fontification based on regexps.
795* Customizing Keywords:: Customizing search-based fontification.
796* Other Font Lock Variables:: Additional customization facilities.
797* Levels of Font Lock:: Each mode can define alternative levels
798 so that the user can select more or less.
799* Precalculated Fontification:: How Lisp programs that produce the buffer
800 contents can also specify how to fontify it.
801* Faces for Font Lock:: Special faces specifically for Font Lock.
802* Syntactic Font Lock:: Fontification based on syntax tables.
803* Setting Syntax Properties:: Defining character syntax based on context
804 using the Font Lock mechanism.
805* Multiline Font Lock:: How to coerce Font Lock into properly
806 highlighting multiline constructs.
807
808Multiline Font Lock Constructs
809
810* Font Lock Multiline:: Marking multiline chunks with a text property
811* Region to Fontify:: Controlling which region gets refontified
812 after a buffer change.
813
814Documentation
815
816* Documentation Basics:: Good style for doc strings.
817 Where to put them. How Emacs stores them.
818* Accessing Documentation:: How Lisp programs can access doc strings.
819* Keys in Documentation:: Substituting current key bindings.
820* Describing Characters:: Making printable descriptions of
821 non-printing characters and key sequences.
822* Help Functions:: Subroutines used by Emacs help facilities.
823
824Files
825
826* Visiting Files:: Reading files into Emacs buffers for editing.
827* Saving Buffers:: Writing changed buffers back into files.
828* Reading from Files:: Reading files into other buffers.
829* Writing to Files:: Writing new files from parts of buffers.
830* File Locks:: Locking and unlocking files, to prevent
831 simultaneous editing by two people.
832* Information about Files:: Testing existence, accessibility, size of files.
833* Changing Files:: Renaming files, changing protection, etc.
834* File Names:: Decomposing and expanding file names.
835* Contents of Directories:: Getting a list of the files in a directory.
836* Create/Delete Dirs:: Creating and Deleting Directories.
837* Magic File Names:: Defining "magic" special handling
838 for certain file names.
839* Format Conversion:: Conversion to and from various file formats.
840
841Visiting Files
842
843* Visiting Functions:: The usual interface functions for visiting.
844* Subroutines of Visiting:: Lower-level subroutines that they use.
845
846Information about Files
847
848* Testing Accessibility:: Is a given file readable? Writable?
849* Kinds of Files:: Is it a directory? A symbolic link?
850* Truenames:: Eliminating symbolic links from a file name.
851* File Attributes:: How large is it? Any other names? Etc.
852* Locating Files:: How to find a file in standard places.
853
854File Names
855
856* File Name Components:: The directory part of a file name, and the rest.
857* Relative File Names:: Some file names are relative to a
858 current directory.
859* Directory Names:: A directory's name as a directory
860 is different from its name as a file.
861* File Name Expansion:: Converting relative file names to absolute ones.
862* Unique File Names:: Generating names for temporary files.
863* File Name Completion:: Finding the completions for a given file name.
864* Standard File Names:: If your package uses a fixed file name,
865 how to handle various operating systems simply.
866
867Backups and Auto-Saving
868
869* Backup Files:: How backup files are made; how their names
870 are chosen.
871* Auto-Saving:: How auto-save files are made; how their
872 names are chosen.
873* Reverting:: @code{revert-buffer}, and how to customize
874 what it does.
875
876Backup Files
877
878* Making Backups:: How Emacs makes backup files, and when.
879* Rename or Copy:: Two alternatives: renaming the old file
880 or copying it.
881* Numbered Backups:: Keeping multiple backups for each source file.
882* Backup Names:: How backup file names are computed; customization.
883
884Buffers
885
886* Buffer Basics:: What is a buffer?
887* Current Buffer:: Designating a buffer as current
888 so primitives will access its contents.
889* Buffer Names:: Accessing and changing buffer names.
890* Buffer File Name:: The buffer file name indicates which file
891 is visited.
892* Buffer Modification:: A buffer is @dfn{modified} if it needs to be saved.
893* Modification Time:: Determining whether the visited file was changed
894 ``behind Emacs's back''.
895* Read Only Buffers:: Modifying text is not allowed in a
896 read-only buffer.
897* The Buffer List:: How to look at all the existing buffers.
898* Creating Buffers:: Functions that create buffers.
899* Killing Buffers:: Buffers exist until explicitly killed.
900* Indirect Buffers:: An indirect buffer shares text with some
901 other buffer.
902* Buffer Gap:: The gap in the buffer.
903
904Windows
905
906* Basic Windows:: Basic information on using windows.
907* Splitting Windows:: Splitting one window into two windows.
908* Deleting Windows:: Deleting a window gives its space to other windows.
909* Selecting Windows:: The selected window is the one that you edit in.
910* Cyclic Window Ordering:: Moving around the existing windows.
911* Buffers and Windows:: Each window displays the contents of a buffer.
912* Displaying Buffers:: Higher-level functions for displaying a buffer
913 and choosing a window for it.
914* Choosing Window:: How to choose a window for displaying a buffer.
915* Window Point:: Each window has its own location of point.
916* Window Start:: The display-start position controls which text
917 is on-screen in the window.
918* Textual Scrolling:: Moving text up and down through the window.
919* Vertical Scrolling:: Moving the contents up and down on the window.
920* Horizontal Scrolling:: Moving the contents sideways on the window.
921* Size of Window:: Accessing the size of a window.
922* Resizing Windows:: Changing the size of a window.
923* Coordinates and Windows:: Converting coordinates to windows.
924* Window Tree:: The layout and sizes of all windows in a frame.
925* Window Configurations:: Saving and restoring the state of the screen.
926* Window Hooks:: Hooks for scrolling, window size changes,
927 redisplay going past a certain point,
928 or window configuration changes.
929
930Frames
931
932* Creating Frames:: Creating additional frames.
933* Multiple Displays:: Creating frames on other displays.
934* Frame Parameters:: Controlling frame size, position, font, etc.
935* Frame Titles:: Automatic updating of frame titles.
936* Deleting Frames:: Frames last until explicitly deleted.
937* Finding All Frames:: How to examine all existing frames.
938* Frames and Windows:: A frame contains windows;
939 display of text always works through windows.
940* Minibuffers and Frames:: How a frame finds the minibuffer to use.
941* Input Focus:: Specifying the selected frame.
942* Visibility of Frames:: Frames may be visible or invisible, or icons.
943* Raising and Lowering:: Raising a frame makes it hide other windows;
944 lowering it puts it underneath the others.
945* Frame Configurations:: Saving the state of all frames.
946* Mouse Tracking:: Getting events that say when the mouse moves.
947* Mouse Position:: Asking where the mouse is, or moving it.
948* Pop-Up Menus:: Displaying a menu for the user to select from.
949* Dialog Boxes:: Displaying a box to ask yes or no.
950* Pointer Shape:: Specifying the shape of the mouse pointer.
951* Window System Selections::Transferring text to and from other windows.
952* Drag and Drop:: Internals of Drag-and-Drop implementation.
953* Color Names:: Getting the definitions of color names.
954* Text Terminal Colors:: Defining colors for text-only terminals.
955* Resources:: Getting resource values from the server.
956* Display Feature Testing:: Determining the features of a terminal.
957
958Frame Parameters
959
960* Parameter Access:: How to change a frame's parameters.
961* Initial Parameters:: Specifying frame parameters when you make a frame.
962* Window Frame Parameters:: List of frame parameters for window systems.
963* Size and Position:: Changing the size and position of a frame.
964* Geometry:: Parsing geometry specifications.
965
966Window Frame Parameters
967
968* Basic Parameters:: Parameters that are fundamental.
969* Position Parameters:: The position of the frame on the screen.
970* Size Parameters:: Frame's size.
971* Layout Parameters:: Size of parts of the frame, and
972 enabling or disabling some parts.
973* Buffer Parameters:: Which buffers have been or should be shown.
974* Management Parameters:: Communicating with the window manager.
975* Cursor Parameters:: Controlling the cursor appearance.
976* Color Parameters:: Colors of various parts of the frame.
977
978Positions
979
980* Point:: The special position where editing takes place.
981* Motion:: Changing point.
982* Excursions:: Temporary motion and buffer changes.
983* Narrowing:: Restricting editing to a portion of the buffer.
984
985Motion
986
987* Character Motion:: Moving in terms of characters.
988* Word Motion:: Moving in terms of words.
989* Buffer End Motion:: Moving to the beginning or end of the buffer.
990* Text Lines:: Moving in terms of lines of text.
991* Screen Lines:: Moving in terms of lines as displayed.
992* List Motion:: Moving by parsing lists and sexps.
993* Skipping Characters:: Skipping characters belonging to a certain set.
994
995Markers
996
997* Overview of Markers:: The components of a marker, and how it relocates.
998* Predicates on Markers:: Testing whether an object is a marker.
999* Creating Markers:: Making empty markers or markers at certain places.
1000* Information from Markers::Finding the marker's buffer or character
1001 position.
1002* Marker Insertion Types:: Two ways a marker can relocate when you
1003 insert where it points.
1004* Moving Markers:: Moving the marker to a new buffer or position.
1005* The Mark:: How "the mark" is implemented with a marker.
1006* The Region:: How to access "the region".
1007
1008Text
1009
1010* Near Point:: Examining text in the vicinity of point.
1011* Buffer Contents:: Examining text in a general fashion.
1012* Comparing Text:: Comparing substrings of buffers.
1013* Insertion:: Adding new text to a buffer.
1014* Commands for Insertion:: User-level commands to insert text.
1015* Deletion:: Removing text from a buffer.
1016* User-Level Deletion:: User-level commands to delete text.
1017* The Kill Ring:: Where removed text sometimes is saved for
1018 later use.
1019* Undo:: Undoing changes to the text of a buffer.
1020* Maintaining Undo:: How to enable and disable undo information.
1021 How to control how much information is kept.
1022* Filling:: Functions for explicit filling.
1023* Margins:: How to specify margins for filling commands.
1024* Adaptive Fill:: Adaptive Fill mode chooses a fill prefix
1025 from context.
1026* Auto Filling:: How auto-fill mode is implemented to break lines.
1027* Sorting:: Functions for sorting parts of the buffer.
1028* Columns:: Computing horizontal positions, and using them.
1029* Indentation:: Functions to insert or adjust indentation.
1030* Case Changes:: Case conversion of parts of the buffer.
1031* Text Properties:: Assigning Lisp property lists to text characters.
1032* Substitution:: Replacing a given character wherever it appears.
1033* Transposition:: Swapping two portions of a buffer.
1034* Registers:: How registers are implemented. Accessing
1035 the text or position stored in a register.
1036* Base 64:: Conversion to or from base 64 encoding.
1037* MD5 Checksum:: Compute the MD5 "message digest"/"checksum".
1038* Atomic Changes:: Installing several buffer changes "atomically".
1039* Change Hooks:: Supplying functions to be run when text is changed.
1040
1041The Kill Ring
1042
1043* Kill Ring Concepts:: What text looks like in the kill ring.
1044* Kill Functions:: Functions that kill text.
1045* Yanking:: How yanking is done.
1046* Yank Commands:: Commands that access the kill ring.
1047* Low-Level Kill Ring:: Functions and variables for kill ring access.
1048* Internals of Kill Ring:: Variables that hold kill-ring data.
1049
1050Indentation
1051
1052* Primitive Indent:: Functions used to count and insert indentation.
1053* Mode-Specific Indent:: Customize indentation for different modes.
1054* Region Indent:: Indent all the lines in a region.
1055* Relative Indent:: Indent the current line based on previous lines.
1056* Indent Tabs:: Adjustable, typewriter-like tab stops.
1057* Motion by Indent:: Move to first non-blank character.
1058
1059Text Properties
1060
1061* Examining Properties:: Looking at the properties of one character.
1062* Changing Properties:: Setting the properties of a range of text.
1063* Property Search:: Searching for where a property changes value.
1064* Special Properties:: Particular properties with special meanings.
1065* Format Properties:: Properties for representing formatting of text.
1066* Sticky Properties:: How inserted text gets properties from
1067 neighboring text.
1068* Lazy Properties:: Computing text properties in a lazy fashion
1069 only when text is examined.
1070* Clickable Text:: Using text properties to make regions of text
1071 do something when you click on them.
1072* Links and Mouse-1:: How to make @key{Mouse-1} follow a link.
1073* Fields:: The @code{field} property defines
1074 fields within the buffer.
1075* Not Intervals:: Why text properties do not use
1076 Lisp-visible text intervals.
1077
1078Non-ASCII Characters
1079
1080* Text Representations:: Unibyte and multibyte representations
1081* Converting Representations:: Converting unibyte to multibyte and vice versa.
1082* Selecting a Representation:: Treating a byte sequence as unibyte or multi.
1083* Character Codes:: How unibyte and multibyte relate to
1084 codes of individual characters.
1085* Character Sets:: The space of possible character codes
1086 is divided into various character sets.
1087* Chars and Bytes:: More information about multibyte encodings.
1088* Splitting Characters:: Converting a character to its byte sequence.
1089* Scanning Charsets:: Which character sets are used in a buffer?
1090* Translation of Characters:: Translation tables are used for conversion.
1091* Coding Systems:: Coding systems are conversions for saving files.
1092* Input Methods:: Input methods allow users to enter various
1093 non-ASCII characters without special keyboards.
1094* Locales:: Interacting with the POSIX locale.
1095
1096Coding Systems
1097
1098* Coding System Basics:: Basic concepts.
1099* Encoding and I/O:: How file I/O functions handle coding systems.
1100* Lisp and Coding Systems:: Functions to operate on coding system names.
1101* User-Chosen Coding Systems:: Asking the user to choose a coding system.
1102* Default Coding Systems:: Controlling the default choices.
1103* Specifying Coding Systems:: Requesting a particular coding system
1104 for a single file operation.
1105* Explicit Encoding:: Encoding or decoding text without doing I/O.
1106* Terminal I/O Encoding:: Use of encoding for terminal I/O.
1107* MS-DOS File Types:: How DOS "text" and "binary" files
1108 relate to coding systems.
1109
1110Searching and Matching
1111
1112* String Search:: Search for an exact match.
1113* Searching and Case:: Case-independent or case-significant searching.
1114* Regular Expressions:: Describing classes of strings.
1115* Regexp Search:: Searching for a match for a regexp.
1116* POSIX Regexps:: Searching POSIX-style for the longest match.
1117* Match Data:: Finding out which part of the text matched,
1118 after a string or regexp search.
1119* Search and Replace:: Commands that loop, searching and replacing.
1120* Standard Regexps:: Useful regexps for finding sentences, pages,...
1121
1122Regular Expressions
1123
1124* Syntax of Regexps:: Rules for writing regular expressions.
1125* Regexp Example:: Illustrates regular expression syntax.
1126* Regexp Functions:: Functions for operating on regular expressions.
1127
1128Syntax of Regular Expressions
1129
1130* Regexp Special:: Special characters in regular expressions.
1131* Char Classes:: Character classes used in regular expressions.
1132* Regexp Backslash:: Backslash-sequences in regular expressions.
1133
1134The Match Data
1135
1136* Replacing Match:: Replacing a substring that was matched.
1137* Simple Match Data:: Accessing single items of match data,
1138 such as where a particular subexpression started.
1139* Entire Match Data:: Accessing the entire match data at once, as a list.
1140* Saving Match Data:: Saving and restoring the match data.
1141
1142Syntax Tables
1143
1144* Syntax Basics:: Basic concepts of syntax tables.
1145* Syntax Descriptors:: How characters are classified.
1146* Syntax Table Functions:: How to create, examine and alter syntax tables.
1147* Syntax Properties:: Overriding syntax with text properties.
1148* Motion and Syntax:: Moving over characters with certain syntaxes.
1149* Parsing Expressions:: Parsing balanced expressions
1150 using the syntax table.
1151* Standard Syntax Tables:: Syntax tables used by various major modes.
1152* Syntax Table Internals:: How syntax table information is stored.
1153* Categories:: Another way of classifying character syntax.
1154
1155Syntax Descriptors
1156
1157* Syntax Class Table:: Table of syntax classes.
1158* Syntax Flags:: Additional flags each character can have.
1159
1160Parsing Expressions
1161
1162* Motion via Parsing:: Motion functions that work by parsing.
1163* Position Parse:: Determining the syntactic state of a position.
1164* Parser State:: How Emacs represents a syntactic state.
1165* Low-Level Parsing:: Parsing across a specified region.
1166* Control Parsing:: Parameters that affect parsing.
1167
1168Abbrevs And Abbrev Expansion
1169
1170* Abbrev Mode:: Setting up Emacs for abbreviation.
1171* Abbrev Tables:: Creating and working with abbrev tables.
1172* Defining Abbrevs:: Specifying abbreviations and their expansions.
1173* Abbrev Files:: Saving abbrevs in files.
1174* Abbrev Expansion:: Controlling expansion; expansion subroutines.
1175* Standard Abbrev Tables:: Abbrev tables used by various major modes.
1176
1177Processes
1178
1179* Subprocess Creation:: Functions that start subprocesses.
1180* Shell Arguments:: Quoting an argument to pass it to a shell.
1181* Synchronous Processes:: Details of using synchronous subprocesses.
1182* Asynchronous Processes:: Starting up an asynchronous subprocess.
1183* Deleting Processes:: Eliminating an asynchronous subprocess.
1184* Process Information:: Accessing run-status and other attributes.
1185* Input to Processes:: Sending input to an asynchronous subprocess.
1186* Signals to Processes:: Stopping, continuing or interrupting
1187 an asynchronous subprocess.
1188* Output from Processes:: Collecting output from an asynchronous subprocess.
1189* Sentinels:: Sentinels run when process run-status changes.
1190* Query Before Exit:: Whether to query if exiting will kill a process.
1191* Transaction Queues:: Transaction-based communication with subprocesses.
1192* Network:: Opening network connections.
1193* Network Servers:: Network servers let Emacs accept net connections.
1194* Datagrams:: UDP network connections.
1195* Low-Level Network:: Lower-level but more general function
1196 to create connections and servers.
1197* Misc Network:: Additional relevant functions for network connections.
1198* Byte Packing:: Using bindat to pack and unpack binary data.
1199
1200Receiving Output from Processes
1201
1202* Process Buffers:: If no filter, output is put in a buffer.
1203* Filter Functions:: Filter functions accept output from the process.
1204* Decoding Output:: Filters can get unibyte or multibyte strings.
1205* Accepting Output:: How to wait until process output arrives.
1206
1207Low-Level Network Access
1208
1209* Proc: Network Processes. Using @code{make-network-process}.
1210* Options: Network Options. Further control over network connections.
1211* Features: Network Feature Testing.
1212 Determining which network features work on
1213 the machine you are using.
1214
1215Packing and Unpacking Byte Arrays
1216
1217* Bindat Spec:: Describing data layout.
1218* Bindat Functions:: Doing the unpacking and packing.
1219* Bindat Examples:: Samples of what bindat.el can do for you!
1220
1221Emacs Display
1222
1223* Refresh Screen:: Clearing the screen and redrawing everything on it.
1224* Forcing Redisplay:: Forcing redisplay.
1225* Truncation:: Folding or wrapping long text lines.
1226* The Echo Area:: Displaying messages at the bottom of the screen.
1227* Warnings:: Displaying warning messages for the user.
1228* Invisible Text:: Hiding part of the buffer text.
1229* Selective Display:: Hiding part of the buffer text (the old way).
1230* Temporary Displays:: Displays that go away automatically.
1231* Overlays:: Use overlays to highlight parts of the buffer.
1232* Width:: How wide a character or string is on the screen.
1233* Line Height:: Controlling the height of lines.
1234* Faces:: A face defines a graphics style
1235 for text characters: font, colors, etc.
1236* Fringes:: Controlling window fringes.
1237* Scroll Bars:: Controlling vertical scroll bars.
1238* Display Property:: Enabling special display features.
1239* Images:: Displaying images in Emacs buffers.
1240* Buttons:: Adding clickable buttons to Emacs buffers.
1241* Abstract Display:: Emacs' Widget for Object Collections.
1242* Blinking:: How Emacs shows the matching open parenthesis.
1243* Usual Display:: The usual conventions for displaying nonprinting chars.
1244* Display Tables:: How to specify other conventions.
1245* Beeping:: Audible signal to the user.
1246* Window Systems:: Which window system is being used.
1247
1248The Echo Area
1249
1250* Displaying Messages:: Explicitly displaying text in the echo area.
1251* Progress:: Informing user about progress of a long operation.
1252* Logging Messages:: Echo area messages are logged for the user.
1253* Echo Area Customization:: Controlling the echo area.
1254
1255Reporting Warnings
1256
1257* Warning Basics:: Warnings concepts and functions to report them.
1258* Warning Variables:: Variables programs bind to customize their warnings.
1259* Warning Options:: Variables users set to control display of warnings.
1260
1261Overlays
1262
1263* Managing Overlays:: Creating and moving overlays.
1264* Overlay Properties:: How to read and set properties.
1265 What properties do to the screen display.
1266* Finding Overlays:: Searching for overlays.
1267
1268Faces
1269
1270* Defining Faces:: How to define a face with @code{defface}.
1271* Face Attributes:: What is in a face?
1272* Attribute Functions:: Functions to examine and set face attributes.
1273* Displaying Faces:: How Emacs combines the faces specified for
1274 a character.
1275* Font Selection:: Finding the best available font for a face.
1276* Face Functions:: How to define and examine faces.
1277* Auto Faces:: Hook for automatic face assignment.
1278* Font Lookup:: Looking up the names of available fonts
1279 and information about them.
1280* Fontsets:: A fontset is a collection of fonts
1281 that handle a range of character sets.
1282
1283Fringes
1284
1285* Fringe Size/Pos:: Specifying where to put the window fringes.
1286* Fringe Indicators:: Displaying indicator icons in the window fringes.
1287* Fringe Cursors:: Displaying cursors in the right fringe.
1288* Fringe Bitmaps:: Specifying bitmaps for fringe indicators.
1289* Customizing Bitmaps:: Specifying your own bitmaps to use in the fringes.
1290* Overlay Arrow:: Display of an arrow to indicate position.
1291
1292The @code{display} Property
1293
1294* Specified Space:: Displaying one space with a specified width.
1295* Pixel Specification:: Specifying space width or height in pixels.
1296* Other Display Specs:: Displaying an image; magnifying text; moving it
1297 up or down on the page; adjusting the width
1298 of spaces within text.
1299* Display Margins:: Displaying text or images to the side of
1300 the main text.
1301
1302Images
1303
1304* Image Descriptors:: How to specify an image for use in @code{:display}.
1305* XBM Images:: Special features for XBM format.
1306* XPM Images:: Special features for XPM format.
1307* GIF Images:: Special features for GIF format.
1308* PostScript Images:: Special features for PostScript format.
1309* Other Image Types:: Various other formats are supported.
1310* Defining Images:: Convenient ways to define an image for later use.
1311* Showing Images:: Convenient ways to display an image once
1312 it is defined.
1313* Image Cache:: Internal mechanisms of image display.
1314
1315Buttons
1316
1317* Button Properties:: Button properties with special meanings.
1318* Button Types:: Defining common properties for classes of buttons.
1319* Making Buttons:: Adding buttons to Emacs buffers.
1320* Manipulating Buttons:: Getting and setting properties of buttons.
1321* Button Buffer Commands:: Buffer-wide commands and bindings for buttons.
1322
1323Abstract Display
1324
1325* Abstract Display Functions:: Functions in the Ewoc package.
1326* Abstract Display Example:: Example of using Ewoc.
1327
1328Display Tables
1329
1330* Display Table Format:: What a display table consists of.
1331* Active Display Table:: How Emacs selects a display table to use.
1332* Glyphs:: How to define a glyph, and what glyphs mean.
1333
1334Operating System Interface
1335
1336* Starting Up:: Customizing Emacs start-up processing.
1337* Getting Out:: How exiting works (permanent or temporary).
1338* System Environment:: Distinguish the name and kind of system.
1339* User Identification:: Finding the name and user id of the user.
1340* Time of Day:: Getting the current time.
1341* Time Conversion:: Converting a time from numeric form to a string, or
1342 to calendrical data (or vice versa).
1343* Time Parsing:: Converting a time from numeric form to text
1344 and vice versa.
1345* Processor Run Time:: Getting the run time used by Emacs.
1346* Time Calculations:: Adding, subtracting, comparing times, etc.
1347* Timers:: Setting a timer to call a function at a certain time.
1348* Idle Timers:: Setting a timer to call a function when Emacs has
1349 been idle for a certain length of time.
1350* Terminal Input:: Accessing and recording terminal input.
1351* Terminal Output:: Controlling and recording terminal output.
1352* Sound Output:: Playing sounds on the computer's speaker.
1353* X11 Keysyms:: Operating on key symbols for X Windows
1354* Batch Mode:: Running Emacs without terminal interaction.
1355* Session Management:: Saving and restoring state with X Session Management.
1356
1357Starting Up Emacs
1358
1359* Startup Summary:: Sequence of actions Emacs performs at start-up.
1360* Init File:: Details on reading the init file (@file{.emacs}).
1361* Terminal-Specific:: How the terminal-specific Lisp file is read.
1362* Command-Line Arguments:: How command-line arguments are processed,
1363 and how you can customize them.
1364
1365Getting Out of Emacs
1366
1367* Killing Emacs:: Exiting Emacs irreversibly.
1368* Suspending Emacs:: Exiting Emacs reversibly.
1369
1370Terminal Input
1371
1372* Input Modes:: Options for how input is processed.
1373* Recording Input:: Saving histories of recent or all input events.
1374
1375Tips and Conventions
1376
1377* Coding Conventions:: Conventions for clean and robust programs.
1378* Key Binding Conventions:: Which keys should be bound by which programs.
1379* Programming Tips:: Making Emacs code fit smoothly in Emacs.
1380* Compilation Tips:: Making compiled code run fast.
1381* Warning Tips:: Turning off compiler warnings.
1382* Documentation Tips:: Writing readable documentation strings.
1383* Comment Tips:: Conventions for writing comments.
1384* Library Headers:: Standard headers for library packages.
1385
1386GNU Emacs Internals
1387
1388* Building Emacs:: How the dumped Emacs is made.
1389* Pure Storage:: A kludge to make preloaded Lisp functions sharable.
1390* Garbage Collection:: Reclaiming space for Lisp objects no longer used.
1391* Memory Usage:: Info about total size of Lisp objects made so far.
1392* Writing Emacs Primitives:: Writing C code for Emacs.
1393* Object Internals:: Data formats of buffers, windows, processes.
1394
1395Object Internals
1396
1397* Buffer Internals:: Components of a buffer structure.
1398* Window Internals:: Components of a window structure.
1399* Process Internals:: Components of a process structure.
1400@end detailmenu
1401@end menu
1402
1403@include intro.texi
1404@include objects.texi
1405@include numbers.texi
1406@include strings.texi
1407
1408@include lists.texi
1409@include sequences.texi
1410@include hash.texi
1411@include symbols.texi
1412@include eval.texi
1413
1414@include control.texi
1415@include variables.texi
1416@include functions.texi
1417@include macros.texi
1418
1419@include customize.texi
1420@include loading.texi
1421@include compile.texi
1422@include advice.texi
1423
1424@include debugging.texi
1425@include streams.texi
1426@include minibuf.texi
1427@include commands.texi
1428
1429@include keymaps.texi
1430@include modes.texi
1431@include help.texi
1432@include files.texi
1433
1434@include backups.texi
1435@include buffers.texi
1436@include windows.texi
1437@include frames.texi
1438
1439@include positions.texi
1440@include markers.texi
1441@include text.texi
1442@include nonascii.texi
1443
1444@include searching.texi
1445@include syntax.texi
1446@include abbrevs.texi
1447@include processes.texi
1448
1449@include display.texi
1450@include os.texi
1451
1452@c MOVE to Emacs Manual: include misc-modes.texi
1453
1454@c appendices
1455
1456@c REMOVE this: include non-hacker.texi
1457
1458@include anti.texi
1459@include doclicense.texi
1460@include gpl.texi
1461@include tips.texi
1462@include internals.texi
1463@include errors.texi
1464@include locals.texi
1465@include maps.texi
1466@include hooks.texi
1467
1468@include index.texi
1469
1470@ignore
1471@node New Symbols, , Index, Top
1472@unnumbered New Symbols Since the Previous Edition
1473
1474@printindex tp
1475@end ignore
1476
1477@bye
1478
1479\f
1480These words prevent "local variables" above from confusing Emacs.
1481
1482@ignore
1483 arch-tag: f7e9a219-a0e1-4776-b631-08eaa1d49b34
1484@end ignore