Get rid of funvec.
[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.
f751a2ae 9@c And also the copies in vol1.texi and vol2.texi.
3a6aa965 10@set VERSION 3.0
f7a31f11 11@include emacsver.texi
f751a2ae 12@set DATE July 2009
b8d4c8d0 13
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14@c in general, keep the following line commented out, unless doing a
15@c copy of this manual that will be published. The manual should go
16@c onto the distribution in the full, 8.5 x 11" size.
17@c set smallbook
18
19@ifset smallbook
20@smallbook
21@end ifset
22
23@c per rms and peterb, use 10pt fonts for the main text, mostly to
24@c save on paper cost.
25@c Do this inside @tex for now, so current makeinfo does not complain.
26@tex
27@ifset smallbook
28@fonttextsize 10
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29\global\let\urlcolor=\Black % don't print links in grayscale
30\global\let\linkcolor=\Black
31@end ifset
32\global\hbadness=6666 % don't worry about not-too-underfull boxes
33@end tex
34
35@c Combine indices.
36@synindex cp fn
37@syncodeindex vr fn
38@syncodeindex ky fn
39@syncodeindex pg fn
40@c We use the "type index" to index new functions and variables.
41@c @syncodeindex tp fn
42
43@copying
44This is edition @value{VERSION} of the GNU Emacs Lisp Reference Manual,@*
45corresponding to Emacs version @value{EMACSVER}.
46
73b0cd50 47Copyright @copyright{} 1990-1996, 1998-2011 Free Software
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48Foundation, Inc.
49
50@quotation
51Permission is granted to copy, distribute and/or modify this document
204d4665 52under the terms of the GNU Free Documentation License, Version 1.3 or
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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
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59(a) The FSF's Back-Cover Text is: ``You have the freedom to copy and
60modify this GNU manual. Buying copies from the FSF supports it in
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61developing GNU and promoting software freedom.''
62@end quotation
63@end copying
64
e979a521 65@dircategory GNU Emacs Lisp
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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}
f751a2ae 73@subtitle Revision @value{VERSION}, @value{DATE}
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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
5300838c 102@insertcopying
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103@end ifnottex
104
f751a2ae 105@c Copy any updates to vol1.texi and vol2.texi.
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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.
d24880de 145* Frames:: Making multiple system-level windows.
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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.
d24880de 157* Display:: Features for controlling the screen display.
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158* System Interface:: Getting the user id, system type, environment
159 variables, and other such things.
160
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161* Packaging:: Preparing Lisp code for distribution.
162
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163Appendices
164
f751a2ae 165* Antinews:: Info for users downgrading to Emacs 22.
561c0216 166* GNU Free Documentation License:: The license for this documentation.
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167* GPL:: Conditions for copying and changing GNU Emacs.
168* Tips:: Advice and coding conventions for Emacs Lisp.
169* GNU Emacs Internals:: Building and dumping Emacs;
170 internal data structures.
171* Standard Errors:: List of all error symbols.
172* Standard Buffer-Local Variables::
173 List of variables buffer-local in all buffers.
174* Standard Keymaps:: List of standard keymaps.
175* Standard Hooks:: List of standard hook variables.
176
177* Index:: Index including concepts, functions, variables,
178 and other terms.
179
180@ignore
181* New Symbols:: New functions and variables in Emacs @value{EMACSVER}.
182@end ignore
183
184@c Do NOT modify the following 3 lines! They must have this form to
185@c be correctly identified by `texinfo-multiple-files-update'. In
186@c particular, the detailed menu header line MUST be identical to the
187@c value of `texinfo-master-menu-header'. See texnfo-upd.el.
f751a2ae 188@c Copy any updates to vol1.texi and vol2.texi.
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189
190@detailmenu
191 --- The Detailed Node Listing ---
192 ---------------------------------
193
194Here are other nodes that are inferiors of those already listed,
195mentioned here so you can get to them in one step:
196
197Introduction
198
199* Caveats:: Flaws and a request for help.
200* Lisp History:: Emacs Lisp is descended from Maclisp.
201* Conventions:: How the manual is formatted.
202* Version Info:: Which Emacs version is running?
203* Acknowledgements:: The authors, editors, and sponsors of this manual.
204
205Conventions
206
207* Some Terms:: Explanation of terms we use in this manual.
208* nil and t:: How the symbols @code{nil} and @code{t} are used.
209* Evaluation Notation:: The format we use for examples of evaluation.
561c0216 210* Printing Notation:: The format we use when examples print text.
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211* Error Messages:: The format we use for examples of errors.
212* Buffer Text Notation:: The format we use for buffer contents in examples.
213* Format of Descriptions:: Notation for describing functions, variables, etc.
214
215Format of Descriptions
216
217* A Sample Function Description:: A description of an imaginary
218 function, @code{foo}.
219* A Sample Variable Description:: A description of an imaginary
220 variable, @code{electric-future-map}.
221
222Lisp Data Types
223
224* Printed Representation:: How Lisp objects are represented as text.
225* Comments:: Comments and their formatting conventions.
226* Programming Types:: Types found in all Lisp systems.
227* Editing Types:: Types specific to Emacs.
121e43fd 228* Circular Objects:: Read syntax for circular structure.
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229* Type Predicates:: Tests related to types.
230* Equality Predicates:: Tests of equality between any two objects.
231
232Programming Types
233
234* Integer Type:: Numbers without fractional parts.
235* Floating Point Type:: Numbers with fractional parts and with a large range.
236* Character Type:: The representation of letters, numbers and
237 control characters.
238* Symbol Type:: A multi-use object that refers to a function,
561c0216 239 variable, or property list, and has a unique identity.
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240* Sequence Type:: Both lists and arrays are classified as sequences.
241* Cons Cell Type:: Cons cells, and lists (which are made from cons cells).
242* Array Type:: Arrays include strings and vectors.
243* String Type:: An (efficient) array of characters.
244* Vector Type:: One-dimensional arrays.
245* Char-Table Type:: One-dimensional sparse arrays indexed by characters.
246* Bool-Vector Type:: One-dimensional arrays of @code{t} or @code{nil}.
247* Hash Table Type:: Super-fast lookup tables.
248* Function Type:: A piece of executable code you can call from elsewhere.
249* Macro Type:: A method of expanding an expression into another
250 expression, more fundamental but less pretty.
251* Primitive Function Type:: A function written in C, callable from Lisp.
876c194c 252* Byte-Code Type:: A function written in Lisp, then compiled.
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253* Autoload Type:: A type used for automatically loading seldom-used
254 functions.
255
256Character Type
257
258* Basic Char Syntax:: Syntax for regular characters.
259* General Escape Syntax:: How to specify characters by their codes.
260* Ctl-Char Syntax:: Syntax for control characters.
261* Meta-Char Syntax:: Syntax for meta-characters.
262* Other Char Bits:: Syntax for hyper-, super-, and alt-characters.
263
264Cons Cell and List Types
265
266* Box Diagrams:: Drawing pictures of lists.
561c0216 267* Dotted Pair Notation:: A general syntax for cons cells.
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268* Association List Type:: A specially constructed list.
269
270String Type
271
272* Syntax for Strings:: How to specify Lisp strings.
273* Non-ASCII in Strings:: International characters in strings.
274* Nonprinting Characters:: Literal unprintable characters in strings.
275* Text Props and Strings:: Strings with text properties.
276
277Editing Types
278
279* Buffer Type:: The basic object of editing.
280* Marker Type:: A position in a buffer.
561c0216 281* Window Type:: Buffers are displayed in windows.
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282* Frame Type:: Windows subdivide frames.
283* Terminal Type:: A terminal device displays frames.
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284* Window Configuration Type:: Recording the way a frame is subdivided.
285* Frame Configuration Type:: Recording the status of all frames.
a65f6a85 286* Process Type:: A subprocess of Emacs running on the underlying OS.
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287* Stream Type:: Receive or send characters.
288* Keymap Type:: What function a keystroke invokes.
289* Overlay Type:: How an overlay is represented.
3a6aa965 290* Font Type:: Fonts for displaying text.
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291
292Numbers
293
294* Integer Basics:: Representation and range of integers.
d24880de 295* Float Basics:: Representation and range of floating point.
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296* Predicates on Numbers:: Testing for numbers.
297* Comparison of Numbers:: Equality and inequality predicates.
d24880de 298* Numeric Conversions:: Converting float to integer and vice versa.
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299* Arithmetic Operations:: How to add, subtract, multiply and divide.
300* Rounding Operations:: Explicitly rounding floating point numbers.
301* Bitwise Operations:: Logical and, or, not, shifting.
302* Math Functions:: Trig, exponential and logarithmic functions.
303* Random Numbers:: Obtaining random integers, predictable or not.
304
305Strings and Characters
306
307* String Basics:: Basic properties of strings and characters.
308* Predicates for Strings:: Testing whether an object is a string or char.
309* Creating Strings:: Functions to allocate new strings.
121e43fd 310* Modifying Strings:: Altering the contents of an existing string.
b8d4c8d0 311* Text Comparison:: Comparing characters or strings.
561c0216 312* String Conversion:: Converting to and from characters and strings.
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313* Formatting Strings:: @code{format}: Emacs's analogue of @code{printf}.
314* Case Conversion:: Case conversion functions.
d24880de 315* Case Tables:: Customizing case conversion.
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316
317Lists
318
319* Cons Cells:: How lists are made out of cons cells.
320* List-related Predicates:: Is this object a list? Comparing two lists.
321* List Elements:: Extracting the pieces of a list.
322* Building Lists:: Creating list structure.
323* List Variables:: Modifying lists stored in variables.
324* Modifying Lists:: Storing new pieces into an existing list.
325* Sets And Lists:: A list can represent a finite mathematical set.
326* Association Lists:: A list can represent a finite relation or mapping.
327* Rings:: Managing a fixed-size ring of objects.
328
329Modifying Existing List Structure
330
331* Setcar:: Replacing an element in a list.
332* Setcdr:: Replacing part of the list backbone.
333 This can be used to remove or add elements.
334* Rearrangement:: Reordering the elements in a list; combining lists.
335
336Sequences, Arrays, and Vectors
337
338* Sequence Functions:: Functions that accept any kind of sequence.
339* Arrays:: Characteristics of arrays in Emacs Lisp.
340* Array Functions:: Functions specifically for arrays.
341* Vectors:: Special characteristics of Emacs Lisp vectors.
342* Vector Functions:: Functions specifically for vectors.
343* Char-Tables:: How to work with char-tables.
344* Bool-Vectors:: How to work with bool-vectors.
345
346Hash Tables
347
348* Creating Hash:: Functions to create hash tables.
349* Hash Access:: Reading and writing the hash table contents.
561c0216 350* Defining Hash:: Defining new comparison methods.
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351* Other Hash:: Miscellaneous.
352
353Symbols
354
355* Symbol Components:: Symbols have names, values, function definitions
356 and property lists.
357* Definitions:: A definition says how a symbol will be used.
358* Creating Symbols:: How symbols are kept unique.
359* Property Lists:: Each symbol has a property list
360 for recording miscellaneous information.
361
362Property Lists
363
364* Plists and Alists:: Comparison of the advantages of property
365 lists and association lists.
366* Symbol Plists:: Functions to access symbols' property lists.
367* Other Plists:: Accessing property lists stored elsewhere.
368
369Evaluation
370
371* Intro Eval:: Evaluation in the scheme of things.
372* Forms:: How various sorts of objects are evaluated.
373* Quoting:: Avoiding evaluation (to put constants in
374 the program).
375* Eval:: How to invoke the Lisp interpreter explicitly.
376
377Kinds of Forms
378
379* Self-Evaluating Forms:: Forms that evaluate to themselves.
380* Symbol Forms:: Symbols evaluate as variables.
381* Classifying Lists:: How to distinguish various sorts of list forms.
382* Function Indirection:: When a symbol appears as the car of a list,
d24880de 383 we find the real function via the symbol.
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384* Function Forms:: Forms that call functions.
385* Macro Forms:: Forms that call macros.
386* Special Forms:: "Special forms" are idiosyncratic primitives,
387 most of them extremely important.
388* Autoloading:: Functions set up to load files
389 containing their real definitions.
390
391Control Structures
392
393* Sequencing:: Evaluation in textual order.
394* Conditionals:: @code{if}, @code{cond}, @code{when}, @code{unless}.
395* Combining Conditions:: @code{and}, @code{or}, @code{not}.
396* Iteration:: @code{while} loops.
397* Nonlocal Exits:: Jumping out of a sequence.
398
399Nonlocal Exits
400
401* Catch and Throw:: Nonlocal exits for the program's own purposes.
402* Examples of Catch:: Showing how such nonlocal exits can be written.
403* Errors:: How errors are signaled and handled.
404* Cleanups:: Arranging to run a cleanup form if an
405 error happens.
406
407Errors
408
409* Signaling Errors:: How to report an error.
410* Processing of Errors:: What Emacs does when you report an error.
411* Handling Errors:: How you can trap errors and continue execution.
412* Error Symbols:: How errors are classified for trapping them.
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413
414Variables
415
416* Global Variables:: Variable values that exist permanently, everywhere.
417* Constant Variables:: Certain "variables" have values that never change.
418* Local Variables:: Variable values that exist only temporarily.
419* Void Variables:: Symbols that lack values.
420* Defining Variables:: A definition says a symbol is used as a variable.
421* Tips for Defining:: Things you should think about when you
422 define a variable.
423* Accessing Variables:: Examining values of variables whose names
424 are known only at run time.
425* Setting Variables:: Storing new values in variables.
426* Variable Scoping:: How Lisp chooses among local and global values.
427* Buffer-Local Variables:: Variable values in effect only in one buffer.
b8d4c8d0 428* File Local Variables:: Handling local variable lists in files.
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429* Directory Local Variables:: Local variables common to all files in a
430 directory.
eaf4b689 431* Frame-Local Variables:: Frame-local bindings for variables.
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432* Variable Aliases:: Variables that are aliases for other variables.
433* Variables with Restricted Values:: Non-constant variables whose value can
434 @emph{not} be an arbitrary Lisp object.
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435
436Scoping Rules for Variable Bindings
437
438* Scope:: Scope means where in the program a value
439 is visible. Comparison with other languages.
440* Extent:: Extent means how long in time a value exists.
441* Impl of Scope:: Two ways to implement dynamic scoping.
442* Using Scoping:: How to use dynamic scoping carefully and
443 avoid problems.
444
445Buffer-Local Variables
446
447* Intro to Buffer-Local:: Introduction and concepts.
448* Creating Buffer-Local:: Creating and destroying buffer-local bindings.
449* Default Value:: The default value is seen in buffers
450 that don't have their own buffer-local values.
451
452Functions
453
561c0216 454* What Is a Function:: Lisp functions vs. primitives; terminology.
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455* Lambda Expressions:: How functions are expressed as Lisp objects.
456* Function Names:: A symbol can serve as the name of a function.
457* Defining Functions:: Lisp expressions for defining functions.
458* Calling Functions:: How to use an existing function.
459* Mapping Functions:: Applying a function to each element of a list, etc.
561c0216 460* Anonymous Functions:: Lambda expressions are functions with no names.
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461* Function Cells:: Accessing or setting the function definition
462 of a symbol.
463* Obsolete Functions:: Declaring functions obsolete.
d24880de 464* Inline Functions:: Defining functions that the compiler
561c0216 465 will open code.
d24880de 466* Declaring Functions:: Telling the compiler that a function is defined.
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467* Function Safety:: Determining whether a function is safe to call.
468* Related Topics:: Cross-references to specific Lisp primitives
b9598260 469 that have a special bearing on how functions work.
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470
471Lambda Expressions
472
473* Lambda Components:: The parts of a lambda expression.
474* Simple Lambda:: A simple example.
475* Argument List:: Details and special features of argument lists.
476* Function Documentation:: How to put documentation in a function.
477
478Macros
479
480* Simple Macro:: A basic example.
481* Expansion:: How, when and why macros are expanded.
482* Compiling Macros:: How macros are expanded by the compiler.
483* Defining Macros:: How to write a macro definition.
484* Backquote:: Easier construction of list structure.
485* Problems with Macros:: Don't evaluate the macro arguments too many times.
486 Don't hide the user's variables.
487* Indenting Macros:: Specifying how to indent macro calls.
488
489Common Problems Using Macros
490
491* Wrong Time:: Do the work in the expansion, not in the macro.
492* Argument Evaluation:: The expansion should evaluate each macro arg once.
493* Surprising Local Vars:: Local variable bindings in the expansion
494 require special care.
495* Eval During Expansion:: Don't evaluate them; put them in the expansion.
496* Repeated Expansion:: Avoid depending on how many times expansion is done.
497
498Writing Customization Definitions
499
500* Common Keywords:: Common keyword arguments for all kinds of
501 customization declarations.
502* Group Definitions:: Writing customization group definitions.
503* Variable Definitions:: Declaring user options.
504* Customization Types:: Specifying the type of a user option.
505
506Customization Types
507
508* Simple Types:: Simple customization types: sexp, integer, number,
509 string, file, directory, alist.
510* Composite Types:: Build new types from other types or data.
511* Splicing into Lists:: Splice elements into list with @code{:inline}.
512* Type Keywords:: Keyword-argument pairs in a customization type.
513* Defining New Types:: Give your type a name.
514
515Loading
516
517* How Programs Do Loading:: The @code{load} function and others.
518* Load Suffixes:: Details about the suffixes that @code{load} tries.
519* Library Search:: Finding a library to load.
520* Loading Non-ASCII:: Non-@acronym{ASCII} characters in Emacs Lisp files.
521* Autoload:: Setting up a function to autoload.
522* Repeated Loading:: Precautions about loading a file twice.
523* Named Features:: Loading a library if it isn't already loaded.
524* Where Defined:: Finding which file defined a certain symbol.
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525* Unloading:: How to "unload" a library that was loaded.
526* Hooks for Loading:: Providing code to be run when
527 particular libraries are loaded.
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528
529Byte Compilation
530
531* Speed of Byte-Code:: An example of speedup from byte compilation.
532* Compilation Functions:: Byte compilation functions.
533* Docs and Compilation:: Dynamic loading of documentation strings.
534* Dynamic Loading:: Dynamic loading of individual functions.
535* Eval During Compile:: Code to be evaluated when you compile.
536* Compiler Errors:: Handling compiler error messages.
d24880de 537* Byte-Code Objects:: The data type used for byte-compiled functions.
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538* Disassembly:: Disassembling byte-code; how to read byte-code.
539
540Advising Emacs Lisp Functions
541
542* Simple Advice:: A simple example to explain the basics of advice.
543* Defining Advice:: Detailed description of @code{defadvice}.
544* Around-Advice:: Wrapping advice around a function's definition.
545* Computed Advice:: ...is to @code{defadvice} as @code{fset} is to @code{defun}.
546* Activation of Advice:: Advice doesn't do anything until you activate it.
547* Enabling Advice:: You can enable or disable each piece of advice.
548* Preactivation:: Preactivation is a way of speeding up the
549 loading of compiled advice.
550* Argument Access in Advice:: How advice can access the function's arguments.
551* Advising Primitives:: Accessing arguments when advising a primitive.
552* Combined Definition:: How advice is implemented.
553
554Debugging Lisp Programs
555
556* Debugger:: How the Emacs Lisp debugger is implemented.
557* Edebug:: A source-level Emacs Lisp debugger.
558* Syntax Errors:: How to find syntax errors.
559* Test Coverage:: Ensuring you have tested all branches in your code.
560* Compilation Errors:: How to find errors that show up in
561 byte compilation.
562
563The Lisp Debugger
564
565* Error Debugging:: Entering the debugger when an error happens.
d24880de 566* Infinite Loops:: Stopping and debugging a program that doesn't exit.
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567* Function Debugging:: Entering it when a certain function is called.
568* Explicit Debug:: Entering it at a certain point in the program.
569* Using Debugger:: What the debugger does; what you see while in it.
570* Debugger Commands:: Commands used while in the debugger.
571* Invoking the Debugger:: How to call the function @code{debug}.
572* Internals of Debugger:: Subroutines of the debugger, and global variables.
573
574Edebug
575
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576* Using Edebug:: Introduction to use of Edebug.
577* Instrumenting:: You must instrument your code
578 in order to debug it with Edebug.
b8d4c8d0 579* Edebug Execution Modes:: Execution modes, stopping more or less often.
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580* Jumping:: Commands to jump to a specified place.
581* Edebug Misc:: Miscellaneous commands.
582* Breaks:: Setting breakpoints to make the program stop.
583* Trapping Errors:: Trapping errors with Edebug.
584* Edebug Views:: Views inside and outside of Edebug.
585* Edebug Eval:: Evaluating expressions within Edebug.
586* Eval List:: Expressions whose values are displayed
587 each time you enter Edebug.
588* Printing in Edebug:: Customization of printing.
589* Trace Buffer:: How to produce trace output in a buffer.
590* Coverage Testing:: How to test evaluation coverage.
591* The Outside Context:: Data that Edebug saves and restores.
b8d4c8d0 592* Edebug and Macros:: Specifying how to handle macro calls.
d24880de 593* Edebug Options:: Option variables for customizing Edebug.
b8d4c8d0 594
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595Breaks
596
597* Breakpoints:: Breakpoints at stop points.
598* Global Break Condition:: Breaking on an event.
599* Source Breakpoints:: Embedding breakpoints in source code.
600
601The Outside Context
602
603* Checking Whether to Stop::When Edebug decides what to do.
604* Edebug Display Update:: When Edebug updates the display.
605* Edebug Recursive Edit:: When Edebug stops execution.
606
607Edebug and Macros
608
609* Instrumenting Macro Calls::The basic problem.
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610* Specification List:: How to specify complex patterns of evaluation.
611* Backtracking:: What Edebug does when matching fails.
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612* Specification Examples:: To help understand specifications.
613
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614Debugging Invalid Lisp Syntax
615
616* Excess Open:: How to find a spurious open paren or missing close.
617* Excess Close:: How to find a spurious close paren or missing open.
618
619Reading and Printing Lisp Objects
620
621* Streams Intro:: Overview of streams, reading and printing.
622* Input Streams:: Various data types that can be used as
623 input streams.
624* Input Functions:: Functions to read Lisp objects from text.
625* Output Streams:: Various data types that can be used as
626 output streams.
627* Output Functions:: Functions to print Lisp objects as text.
628* Output Variables:: Variables that control what the printing
629 functions do.
630
631Minibuffers
632
633* Intro to Minibuffers:: Basic information about minibuffers.
634* Text from Minibuffer:: How to read a straight text string.
635* Object from Minibuffer:: How to read a Lisp object or expression.
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636* Minibuffer History:: Recording previous minibuffer inputs
637 so the user can reuse them.
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638* Initial Input:: Specifying initial contents for the minibuffer.
639* Completion:: How to invoke and customize completion.
640* Yes-or-No Queries:: Asking a question with a simple answer.
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641* Multiple Queries:: Asking a series of similar questions.
642* Reading a Password:: Reading a password from the terminal.
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643* Minibuffer Commands:: Commands used as key bindings in minibuffers.
644* Minibuffer Contents:: How such commands access the minibuffer text.
645* Minibuffer Windows:: Operating on the special minibuffer windows.
646* Recursive Mini:: Whether recursive entry to minibuffer is allowed.
647* Minibuffer Misc:: Various customization hooks and variables.
648
649Completion
650
651* Basic Completion:: Low-level functions for completing strings.
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652* Minibuffer Completion:: Invoking the minibuffer with completion.
653* Completion Commands:: Minibuffer commands that do completion.
654* High-Level Completion:: Convenient special cases of completion
121e43fd 655 (reading buffer name, file name, etc.).
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656* Reading File Names:: Using completion to read file names and
657 shell commands.
745c5f7b 658* Completion Styles:: Specifying rules for performing completion.
561c0216 659* Programmed Completion:: Writing your own completion-function.
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660
661Command Loop
662
663* Command Overview:: How the command loop reads commands.
664* Defining Commands:: Specifying how a function should read arguments.
665* Interactive Call:: Calling a command, so that it will read arguments.
61bbdbc6 666* Distinguish Interactive:: Making a command distinguish interactive calls.
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667* Command Loop Info:: Variables set by the command loop for you to examine.
668* Adjusting Point:: Adjustment of point after a command.
d24880de 669* Input Events:: What input looks like when you read it.
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670* Reading Input:: How to read input events from the keyboard or mouse.
671* Special Events:: Events processed immediately and individually.
672* Waiting:: Waiting for user input or elapsed time.
673* Quitting:: How @kbd{C-g} works. How to catch or defer quitting.
674* Prefix Command Arguments:: How the commands to set prefix args work.
675* Recursive Editing:: Entering a recursive edit,
676 and why you usually shouldn't.
677* Disabling Commands:: How the command loop handles disabled commands.
678* Command History:: How the command history is set up, and how accessed.
679* Keyboard Macros:: How keyboard macros are implemented.
680
681Defining Commands
682
683* Using Interactive:: General rules for @code{interactive}.
684* Interactive Codes:: The standard letter-codes for reading arguments
685 in various ways.
686* Interactive Examples:: Examples of how to read interactive arguments.
687
688Input Events
689
690* Keyboard Events:: Ordinary characters--keys with symbols on them.
691* Function Keys:: Function keys--keys with names, not symbols.
692* Mouse Events:: Overview of mouse events.
693* Click Events:: Pushing and releasing a mouse button.
694* Drag Events:: Moving the mouse before releasing the button.
695* Button-Down Events:: A button was pushed and not yet released.
696* Repeat Events:: Double and triple click (or drag, or down).
697* Motion Events:: Just moving the mouse, not pushing a button.
698* Focus Events:: Moving the mouse between frames.
699* Misc Events:: Other events the system can generate.
700* Event Examples:: Examples of the lists for mouse events.
701* Classifying Events:: Finding the modifier keys in an event symbol.
561c0216 702 Event types.
d24880de 703* Accessing Mouse:: Functions to extract info from mouse events.
f1c15283 704* Accessing Scroll:: Functions to get info from scroll bar events.
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705* Strings of Events:: Special considerations for putting
706 keyboard character events in a string.
707
708Reading Input
709
710* Key Sequence Input:: How to read one key sequence.
711* Reading One Event:: How to read just one event.
712* Event Mod:: How Emacs modifies events as they are read.
713* Invoking the Input Method:: How reading an event uses the input method.
714* Quoted Character Input:: Asking the user to specify a character.
715* Event Input Misc:: How to reread or throw away input events.
716
717Keymaps
718
719* Key Sequences:: Key sequences as Lisp objects.
720* Keymap Basics:: Basic concepts of keymaps.
721* Format of Keymaps:: What a keymap looks like as a Lisp object.
722* Creating Keymaps:: Functions to create and copy keymaps.
723* Inheritance and Keymaps:: How one keymap can inherit the bindings
724 of another keymap.
725* Prefix Keys:: Defining a key with a keymap as its definition.
726* Active Keymaps:: How Emacs searches the active keymaps
727 for a key binding.
728* Searching Keymaps:: A pseudo-Lisp summary of searching active maps.
729* Controlling Active Maps:: Each buffer has a local keymap
730 to override the standard (global) bindings.
731 A minor mode can also override them.
561c0216 732* Key Lookup:: Finding a key's binding in one keymap.
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733* Functions for Key Lookup:: How to request key lookup.
734* Changing Key Bindings:: Redefining a key in a keymap.
735* Remapping Commands:: A keymap can translate one command to another.
736* Translation Keymaps:: Keymaps for translating sequences of events.
737* Key Binding Commands:: Interactive interfaces for redefining keys.
738* Scanning Keymaps:: Looking through all keymaps, for printing help.
561c0216 739* Menu Keymaps:: Defining a menu as a keymap.
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740
741Menu Keymaps
742
743* Defining Menus:: How to make a keymap that defines a menu.
744* Mouse Menus:: How users actuate the menu with the mouse.
745* Keyboard Menus:: How users actuate the menu with the keyboard.
746* Menu Example:: Making a simple menu.
747* Menu Bar:: How to customize the menu bar.
748* Tool Bar:: A tool bar is a row of images.
749* Modifying Menus:: How to add new items to a menu.
750
751Defining Menus
752
753* Simple Menu Items:: A simple kind of menu key binding,
754 limited in capabilities.
755* Extended Menu Items:: More powerful menu item definitions
756 let you specify keywords to enable
757 various features.
758* Menu Separators:: Drawing a horizontal line through a menu.
759* Alias Menu Items:: Using command aliases in menu items.
760
761Major and Minor Modes
762
763* Hooks:: How to use hooks; how to write code that provides hooks.
764* Major Modes:: Defining major modes.
765* Minor Modes:: Defining minor modes.
766* Mode Line Format:: Customizing the text that appears in the mode line.
767* Imenu:: How a mode can provide a menu
768 of definitions in the buffer.
769* Font Lock Mode:: How modes can highlight text according to syntax.
770* Desktop Save Mode:: How modes can have buffer state saved between
771 Emacs sessions.
772
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773Hooks
774
775* Running Hooks:: How to run a hook.
776* Setting Hooks:: How to put functions on a hook, or remove them.
777
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778Major Modes
779
780* Major Mode Basics::
781* Major Mode Conventions:: Coding conventions for keymaps, etc.
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782* Auto Major Mode:: How Emacs chooses the major mode automatically.
783* Mode Help:: Finding out how to use a mode.
784* Derived Modes:: Defining a new major mode based on another major
785 mode.
786* Generic Modes:: Defining a simple major mode that supports
787 comment syntax and Font Lock mode.
788* Mode Hooks:: Hooks run at the end of major mode functions.
561c0216 789* Example Major Modes:: Text mode and Lisp modes.
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790
791Minor Modes
792
793* Minor Mode Conventions:: Tips for writing a minor mode.
794* Keymaps and Minor Modes:: How a minor mode can have its own keymap.
795* Defining Minor Modes:: A convenient facility for defining minor modes.
796
797Mode Line Format
798
561c0216 799* Mode Line Basics:: Basic ideas of mode line control.
b8d4c8d0 800* Mode Line Data:: The data structure that controls the mode line.
561c0216 801* Mode Line Top:: The top level variable, mode-line-format.
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802* Mode Line Variables:: Variables used in that data structure.
803* %-Constructs:: Putting information into a mode line.
804* Properties in Mode:: Using text properties in the mode line.
805* Header Lines:: Like a mode line, but at the top.
806* Emulating Mode Line:: Formatting text as the mode line would.
807
808Font Lock Mode
809
810* Font Lock Basics:: Overview of customizing Font Lock.
811* Search-based Fontification:: Fontification based on regexps.
812* Customizing Keywords:: Customizing search-based fontification.
813* Other Font Lock Variables:: Additional customization facilities.
814* Levels of Font Lock:: Each mode can define alternative levels
815 so that the user can select more or less.
816* Precalculated Fontification:: How Lisp programs that produce the buffer
817 contents can also specify how to fontify it.
818* Faces for Font Lock:: Special faces specifically for Font Lock.
819* Syntactic Font Lock:: Fontification based on syntax tables.
820* Setting Syntax Properties:: Defining character syntax based on context
821 using the Font Lock mechanism.
822* Multiline Font Lock:: How to coerce Font Lock into properly
823 highlighting multiline constructs.
824
825Multiline Font Lock Constructs
826
561c0216 827* Font Lock Multiline:: Marking multiline chunks with a text property.
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828* Region to Fontify:: Controlling which region gets refontified
829 after a buffer change.
830
831Documentation
832
833* Documentation Basics:: Good style for doc strings.
834 Where to put them. How Emacs stores them.
835* Accessing Documentation:: How Lisp programs can access doc strings.
836* Keys in Documentation:: Substituting current key bindings.
837* Describing Characters:: Making printable descriptions of
838 non-printing characters and key sequences.
839* Help Functions:: Subroutines used by Emacs help facilities.
840
841Files
842
843* Visiting Files:: Reading files into Emacs buffers for editing.
844* Saving Buffers:: Writing changed buffers back into files.
561c0216 845* Reading from Files:: Reading files into buffers without visiting.
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846* Writing to Files:: Writing new files from parts of buffers.
847* File Locks:: Locking and unlocking files, to prevent
848 simultaneous editing by two people.
849* Information about Files:: Testing existence, accessibility, size of files.
850* Changing Files:: Renaming files, changing protection, etc.
851* File Names:: Decomposing and expanding file names.
852* Contents of Directories:: Getting a list of the files in a directory.
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853* Create/Delete Dirs:: Creating and Deleting Directories.
854* Magic File Names:: Defining "magic" special handling
855 for certain file names.
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856* Format Conversion:: Conversion to and from various file formats.
857
858Visiting Files
859
860* Visiting Functions:: The usual interface functions for visiting.
861* Subroutines of Visiting:: Lower-level subroutines that they use.
862
863Information about Files
864
865* Testing Accessibility:: Is a given file readable? Writable?
866* Kinds of Files:: Is it a directory? A symbolic link?
d24880de 867* Truenames:: Eliminating symbolic links from a file name.
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868* File Attributes:: How large is it? Any other names? Etc.
869* Locating Files:: How to find a file in standard places.
870
871File Names
872
873* File Name Components:: The directory part of a file name, and the rest.
561c0216 874* Relative File Names:: Some file names are relative to a current directory.
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875* Directory Names:: A directory's name as a directory
876 is different from its name as a file.
877* File Name Expansion:: Converting relative file names to absolute ones.
878* Unique File Names:: Generating names for temporary files.
879* File Name Completion:: Finding the completions for a given file name.
880* Standard File Names:: If your package uses a fixed file name,
881 how to handle various operating systems simply.
882
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883File Format Conversion
884
121e43fd 885* Format Conversion Overview:: @code{insert-file-contents} and @code{write-region}.
561c0216
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886* Format Conversion Round-Trip:: Using @code{format-alist}.
887* Format Conversion Piecemeal:: Specifying non-paired conversion.
888
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889Backups and Auto-Saving
890
891* Backup Files:: How backup files are made; how their names
892 are chosen.
893* Auto-Saving:: How auto-save files are made; how their
894 names are chosen.
895* Reverting:: @code{revert-buffer}, and how to customize
896 what it does.
897
898Backup Files
899
900* Making Backups:: How Emacs makes backup files, and when.
901* Rename or Copy:: Two alternatives: renaming the old file
902 or copying it.
903* Numbered Backups:: Keeping multiple backups for each source file.
904* Backup Names:: How backup file names are computed; customization.
905
906Buffers
907
908* Buffer Basics:: What is a buffer?
909* Current Buffer:: Designating a buffer as current
561c0216 910 so that primitives will access its contents.
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911* Buffer Names:: Accessing and changing buffer names.
912* Buffer File Name:: The buffer file name indicates which file
913 is visited.
914* Buffer Modification:: A buffer is @dfn{modified} if it needs to be saved.
915* Modification Time:: Determining whether the visited file was changed
916 ``behind Emacs's back''.
917* Read Only Buffers:: Modifying text is not allowed in a
918 read-only buffer.
919* The Buffer List:: How to look at all the existing buffers.
920* Creating Buffers:: Functions that create buffers.
921* Killing Buffers:: Buffers exist until explicitly killed.
922* Indirect Buffers:: An indirect buffer shares text with some
923 other buffer.
acc8b598 924* Swapping Text:: Swapping text between two buffers.
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925* Buffer Gap:: The gap in the buffer.
926
927Windows
928
929* Basic Windows:: Basic information on using windows.
930* Splitting Windows:: Splitting one window into two windows.
931* Deleting Windows:: Deleting a window gives its space to other windows.
932* Selecting Windows:: The selected window is the one that you edit in.
933* Cyclic Window Ordering:: Moving around the existing windows.
934* Buffers and Windows:: Each window displays the contents of a buffer.
935* Displaying Buffers:: Higher-level functions for displaying a buffer
936 and choosing a window for it.
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937* Choosing Window:: How to choose a window for displaying a buffer.
938* Dedicated Windows:: How to avoid displaying another buffer in
efafc282 939 a specific window.
b8d4c8d0 940* Window Point:: Each window has its own location of point.
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941* Window Start and End:: Buffer positions indicating which text is
942 on-screen in a window.
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943* Textual Scrolling:: Moving text up and down through the window.
944* Vertical Scrolling:: Moving the contents up and down on the window.
945* Horizontal Scrolling:: Moving the contents sideways on the window.
946* Size of Window:: Accessing the size of a window.
947* Resizing Windows:: Changing the size of a window.
948* Coordinates and Windows:: Converting coordinates to windows.
949* Window Tree:: The layout and sizes of all windows in a frame.
950* Window Configurations:: Saving and restoring the state of the screen.
efafc282 951* Window Parameters:: Associating additional information with windows.
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952* Window Hooks:: Hooks for scrolling, window size changes,
953 redisplay going past a certain point,
954 or window configuration changes.
955
956Frames
957
d24880de 958* Creating Frames:: Creating additional frames.
3ec61d4e 959* Multiple Terminals:: Displaying on several different devices.
d24880de 960* Frame Parameters:: Controlling frame size, position, font, etc.
df05a163 961* Terminal Parameters:: Parameters common for all frames on terminal.
b8d4c8d0 962* Frame Titles:: Automatic updating of frame titles.
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963* Deleting Frames:: Frames last until explicitly deleted.
964* Finding All Frames:: How to examine all existing frames.
965* Frames and Windows:: A frame contains windows;
966 display of text always works through windows.
b8d4c8d0 967* Minibuffers and Frames:: How a frame finds the minibuffer to use.
d24880de 968* Input Focus:: Specifying the selected frame.
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969* Visibility of Frames:: Frames may be visible or invisible, or icons.
970* Raising and Lowering:: Raising a frame makes it hide other windows;
d24880de 971 lowering it makes the others hide it.
b8d4c8d0 972* Frame Configurations:: Saving the state of all frames.
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973* Mouse Tracking:: Getting events that say when the mouse moves.
974* Mouse Position:: Asking where the mouse is, or moving it.
975* Pop-Up Menus:: Displaying a menu for the user to select from.
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976* Dialog Boxes:: Displaying a box to ask yes or no.
977* Pointer Shape:: Specifying the shape of the mouse pointer.
561c0216 978* Window System Selections::Transferring text to and from other X clients.
b8d4c8d0 979* Drag and Drop:: Internals of Drag-and-Drop implementation.
d24880de 980* Color Names:: Getting the definitions of color names.
b8d4c8d0 981* Text Terminal Colors:: Defining colors for text-only terminals.
d24880de 982* Resources:: Getting resource values from the server.
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983* Display Feature Testing:: Determining the features of a terminal.
984
985Frame Parameters
986
987* Parameter Access:: How to change a frame's parameters.
d24880de 988* Initial Parameters:: Specifying frame parameters when you make a frame.
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989* Window Frame Parameters:: List of frame parameters for window systems.
990* Size and Position:: Changing the size and position of a frame.
991* Geometry:: Parsing geometry specifications.
992
993Window Frame Parameters
994
995* Basic Parameters:: Parameters that are fundamental.
996* Position Parameters:: The position of the frame on the screen.
997* Size Parameters:: Frame's size.
998* Layout Parameters:: Size of parts of the frame, and
999 enabling or disabling some parts.
1000* Buffer Parameters:: Which buffers have been or should be shown.
1001* Management Parameters:: Communicating with the window manager.
1002* Cursor Parameters:: Controlling the cursor appearance.
561c0216 1003* Font and Color Parameters:: Fonts and colors for the frame text.
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1004
1005Positions
1006
1007* Point:: The special position where editing takes place.
1008* Motion:: Changing point.
1009* Excursions:: Temporary motion and buffer changes.
1010* Narrowing:: Restricting editing to a portion of the buffer.
1011
1012Motion
1013
1014* Character Motion:: Moving in terms of characters.
1015* Word Motion:: Moving in terms of words.
1016* Buffer End Motion:: Moving to the beginning or end of the buffer.
1017* Text Lines:: Moving in terms of lines of text.
1018* Screen Lines:: Moving in terms of lines as displayed.
1019* List Motion:: Moving by parsing lists and sexps.
1020* Skipping Characters:: Skipping characters belonging to a certain set.
1021
1022Markers
1023
1024* Overview of Markers:: The components of a marker, and how it relocates.
1025* Predicates on Markers:: Testing whether an object is a marker.
1026* Creating Markers:: Making empty markers or markers at certain places.
561c0216 1027* Information from Markers::Finding the marker's buffer or character position.
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1028* Marker Insertion Types:: Two ways a marker can relocate when you
1029 insert where it points.
1030* Moving Markers:: Moving the marker to a new buffer or position.
1031* The Mark:: How "the mark" is implemented with a marker.
1032* The Region:: How to access "the region".
1033
1034Text
1035
1036* Near Point:: Examining text in the vicinity of point.
1037* Buffer Contents:: Examining text in a general fashion.
1038* Comparing Text:: Comparing substrings of buffers.
1039* Insertion:: Adding new text to a buffer.
1040* Commands for Insertion:: User-level commands to insert text.
1041* Deletion:: Removing text from a buffer.
1042* User-Level Deletion:: User-level commands to delete text.
1043* The Kill Ring:: Where removed text sometimes is saved for
1044 later use.
1045* Undo:: Undoing changes to the text of a buffer.
1046* Maintaining Undo:: How to enable and disable undo information.
d24880de 1047 How to control how much information is kept.
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1048* Filling:: Functions for explicit filling.
1049* Margins:: How to specify margins for filling commands.
1050* Adaptive Fill:: Adaptive Fill mode chooses a fill prefix
1051 from context.
1052* Auto Filling:: How auto-fill mode is implemented to break lines.
1053* Sorting:: Functions for sorting parts of the buffer.
1054* Columns:: Computing horizontal positions, and using them.
1055* Indentation:: Functions to insert or adjust indentation.
1056* Case Changes:: Case conversion of parts of the buffer.
1057* Text Properties:: Assigning Lisp property lists to text characters.
1058* Substitution:: Replacing a given character wherever it appears.
1059* Transposition:: Swapping two portions of a buffer.
1060* Registers:: How registers are implemented. Accessing
1061 the text or position stored in a register.
1062* Base 64:: Conversion to or from base 64 encoding.
1063* MD5 Checksum:: Compute the MD5 "message digest"/"checksum".
1064* Atomic Changes:: Installing several buffer changes "atomically".
1065* Change Hooks:: Supplying functions to be run when text is changed.
1066
1067The Kill Ring
1068
1069* Kill Ring Concepts:: What text looks like in the kill ring.
1070* Kill Functions:: Functions that kill text.
1071* Yanking:: How yanking is done.
1072* Yank Commands:: Commands that access the kill ring.
d24880de 1073* Low-Level Kill Ring:: Functions and variables for kill ring access.
561c0216 1074* Internals of Kill Ring:: Variables that hold kill ring data.
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1075
1076Indentation
1077
1078* Primitive Indent:: Functions used to count and insert indentation.
1079* Mode-Specific Indent:: Customize indentation for different modes.
1080* Region Indent:: Indent all the lines in a region.
1081* Relative Indent:: Indent the current line based on previous lines.
1082* Indent Tabs:: Adjustable, typewriter-like tab stops.
1083* Motion by Indent:: Move to first non-blank character.
1084
1085Text Properties
1086
1087* Examining Properties:: Looking at the properties of one character.
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1088* Changing Properties:: Setting the properties of a range of text.
1089* Property Search:: Searching for where a property changes value.
1090* Special Properties:: Particular properties with special meanings.
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1091* Format Properties:: Properties for representing formatting of text.
1092* Sticky Properties:: How inserted text gets properties from
1093 neighboring text.
1094* Lazy Properties:: Computing text properties in a lazy fashion
1095 only when text is examined.
1096* Clickable Text:: Using text properties to make regions of text
1097 do something when you click on them.
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1098* Fields:: The @code{field} property defines
1099 fields within the buffer.
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1100* Not Intervals:: Why text properties do not use
1101 Lisp-visible text intervals.
b8d4c8d0 1102
561c0216 1103Non-@acronym{ASCII} Characters
b8d4c8d0 1104
561c0216 1105* Text Representations:: How Emacs represents text.
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1106* Converting Representations:: Converting unibyte to multibyte and vice versa.
1107* Selecting a Representation:: Treating a byte sequence as unibyte or multi.
1108* Character Codes:: How unibyte and multibyte relate to
1109 codes of individual characters.
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1110* Character Properties:: Character attributes that define their
1111 behavior and handling.
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1112* Character Sets:: The space of possible character codes
1113 is divided into various character sets.
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1114* Scanning Charsets:: Which character sets are used in a buffer?
1115* Translation of Characters:: Translation tables are used for conversion.
1116* Coding Systems:: Coding systems are conversions for saving files.
1117* Input Methods:: Input methods allow users to enter various
1118 non-ASCII characters without special keyboards.
1119* Locales:: Interacting with the POSIX locale.
1120
1121Coding Systems
1122
1123* Coding System Basics:: Basic concepts.
1124* Encoding and I/O:: How file I/O functions handle coding systems.
1125* Lisp and Coding Systems:: Functions to operate on coding system names.
1126* User-Chosen Coding Systems:: Asking the user to choose a coding system.
1127* Default Coding Systems:: Controlling the default choices.
1128* Specifying Coding Systems:: Requesting a particular coding system
1129 for a single file operation.
1130* Explicit Encoding:: Encoding or decoding text without doing I/O.
1131* Terminal I/O Encoding:: Use of encoding for terminal I/O.
1132* MS-DOS File Types:: How DOS "text" and "binary" files
1133 relate to coding systems.
1134
1135Searching and Matching
1136
1137* String Search:: Search for an exact match.
1138* Searching and Case:: Case-independent or case-significant searching.
1139* Regular Expressions:: Describing classes of strings.
1140* Regexp Search:: Searching for a match for a regexp.
1141* POSIX Regexps:: Searching POSIX-style for the longest match.
1142* Match Data:: Finding out which part of the text matched,
1143 after a string or regexp search.
d24880de 1144* Search and Replace:: Commands that loop, searching and replacing.
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1145* Standard Regexps:: Useful regexps for finding sentences, pages,...
1146
1147Regular Expressions
1148
1149* Syntax of Regexps:: Rules for writing regular expressions.
1150* Regexp Example:: Illustrates regular expression syntax.
1151* Regexp Functions:: Functions for operating on regular expressions.
1152
1153Syntax of Regular Expressions
1154
1155* Regexp Special:: Special characters in regular expressions.
1156* Char Classes:: Character classes used in regular expressions.
1157* Regexp Backslash:: Backslash-sequences in regular expressions.
1158
1159The Match Data
1160
d24880de 1161* Replacing Match:: Replacing a substring that was matched.
b8d4c8d0 1162* Simple Match Data:: Accessing single items of match data,
d24880de 1163 such as where a particular subexpression started.
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1164* Entire Match Data:: Accessing the entire match data at once, as a list.
1165* Saving Match Data:: Saving and restoring the match data.
1166
1167Syntax Tables
1168
1169* Syntax Basics:: Basic concepts of syntax tables.
1170* Syntax Descriptors:: How characters are classified.
1171* Syntax Table Functions:: How to create, examine and alter syntax tables.
1172* Syntax Properties:: Overriding syntax with text properties.
d24880de 1173* Motion and Syntax:: Moving over characters with certain syntaxes.
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1174* Parsing Expressions:: Parsing balanced expressions
1175 using the syntax table.
1176* Standard Syntax Tables:: Syntax tables used by various major modes.
1177* Syntax Table Internals:: How syntax table information is stored.
1178* Categories:: Another way of classifying character syntax.
1179
1180Syntax Descriptors
1181
1182* Syntax Class Table:: Table of syntax classes.
1183* Syntax Flags:: Additional flags each character can have.
1184
1185Parsing Expressions
1186
1187* Motion via Parsing:: Motion functions that work by parsing.
1188* Position Parse:: Determining the syntactic state of a position.
1189* Parser State:: How Emacs represents a syntactic state.
1190* Low-Level Parsing:: Parsing across a specified region.
1191* Control Parsing:: Parameters that affect parsing.
1192
561c0216 1193Abbrevs and Abbrev Expansion
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1194
1195* Abbrev Mode:: Setting up Emacs for abbreviation.
1196* Abbrev Tables:: Creating and working with abbrev tables.
1197* Defining Abbrevs:: Specifying abbreviations and their expansions.
1198* Abbrev Files:: Saving abbrevs in files.
1199* Abbrev Expansion:: Controlling expansion; expansion subroutines.
1200* Standard Abbrev Tables:: Abbrev tables used by various major modes.
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1201* Abbrev Properties:: How to read and set abbrev properties.
1202 Which properties have which effect.
1203* Abbrev Table Properties:: How to read and set abbrev table properties.
1204 Which properties have which effect.
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1205
1206Processes
1207
1208* Subprocess Creation:: Functions that start subprocesses.
1209* Shell Arguments:: Quoting an argument to pass it to a shell.
1210* Synchronous Processes:: Details of using synchronous subprocesses.
1211* Asynchronous Processes:: Starting up an asynchronous subprocess.
1212* Deleting Processes:: Eliminating an asynchronous subprocess.
1213* Process Information:: Accessing run-status and other attributes.
1214* Input to Processes:: Sending input to an asynchronous subprocess.
1215* Signals to Processes:: Stopping, continuing or interrupting
1216 an asynchronous subprocess.
1217* Output from Processes:: Collecting output from an asynchronous subprocess.
1218* Sentinels:: Sentinels run when process run-status changes.
1219* Query Before Exit:: Whether to query if exiting will kill a process.
a65f6a85 1220* System Processes:: Accessing other processes running on your system.
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1221* Transaction Queues:: Transaction-based communication with subprocesses.
1222* Network:: Opening network connections.
1223* Network Servers:: Network servers let Emacs accept net connections.
1224* Datagrams:: UDP network connections.
1225* Low-Level Network:: Lower-level but more general function
1226 to create connections and servers.
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1227* Misc Network:: Additional relevant functions for
1228 network connections.
c73e02fa 1229* Serial Ports:: Communicating with serial ports.
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1230* Byte Packing:: Using bindat to pack and unpack binary data.
1231
1232Receiving Output from Processes
1233
1234* Process Buffers:: If no filter, output is put in a buffer.
1235* Filter Functions:: Filter functions accept output from the process.
1236* Decoding Output:: Filters can get unibyte or multibyte strings.
1237* Accepting Output:: How to wait until process output arrives.
1238
1239Low-Level Network Access
1240
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1241* Network Processes:: Using @code{make-network-process}.
1242* Network Options:: Further control over network connections.
1243* Network Feature Testing:: Determining which network features work on
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1244 the machine you are using.
1245
1246Packing and Unpacking Byte Arrays
1247
1248* Bindat Spec:: Describing data layout.
1249* Bindat Functions:: Doing the unpacking and packing.
1250* Bindat Examples:: Samples of what bindat.el can do for you!
1251
1252Emacs Display
1253
1254* Refresh Screen:: Clearing the screen and redrawing everything on it.
1255* Forcing Redisplay:: Forcing redisplay.
1256* Truncation:: Folding or wrapping long text lines.
1257* The Echo Area:: Displaying messages at the bottom of the screen.
1258* Warnings:: Displaying warning messages for the user.
1259* Invisible Text:: Hiding part of the buffer text.
1260* Selective Display:: Hiding part of the buffer text (the old way).
1261* Temporary Displays:: Displays that go away automatically.
d24880de 1262* Overlays:: Use overlays to highlight parts of the buffer.
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1263* Width:: How wide a character or string is on the screen.
1264* Line Height:: Controlling the height of lines.
d24880de 1265* Faces:: A face defines a graphics style
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1266 for text characters: font, colors, etc.
1267* Fringes:: Controlling window fringes.
1268* Scroll Bars:: Controlling vertical scroll bars.
1269* Display Property:: Enabling special display features.
1270* Images:: Displaying images in Emacs buffers.
1271* Buttons:: Adding clickable buttons to Emacs buffers.
1272* Abstract Display:: Emacs' Widget for Object Collections.
1273* Blinking:: How Emacs shows the matching open parenthesis.
d24880de 1274* Usual Display:: The usual conventions for displaying
561c0216 1275 nonprinting chars.
d24880de 1276* Display Tables:: How to specify other conventions.
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1277* Beeping:: Audible signal to the user.
1278* Window Systems:: Which window system is being used.
1279
1280The Echo Area
1281
1282* Displaying Messages:: Explicitly displaying text in the echo area.
1283* Progress:: Informing user about progress of a long operation.
1284* Logging Messages:: Echo area messages are logged for the user.
1285* Echo Area Customization:: Controlling the echo area.
1286
1287Reporting Warnings
1288
1289* Warning Basics:: Warnings concepts and functions to report them.
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1290* Warning Variables:: Variables programs bind to customize
1291 their warnings.
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1292* Warning Options:: Variables users set to control display of warnings.
1293
1294Overlays
1295
1296* Managing Overlays:: Creating and moving overlays.
1297* Overlay Properties:: How to read and set properties.
d24880de 1298 What properties do to the screen display.
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1299* Finding Overlays:: Searching for overlays.
1300
1301Faces
1302
1303* Defining Faces:: How to define a face with @code{defface}.
1304* Face Attributes:: What is in a face?
1305* Attribute Functions:: Functions to examine and set face attributes.
1306* Displaying Faces:: How Emacs combines the faces specified for
1307 a character.
606061b9 1308* Face Remapping:: Remapping faces to alternative definitions.
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1309* Face Functions:: How to define and examine faces.
1310* Auto Faces:: Hook for automatic face assignment.
606061b9 1311* Font Selection:: Finding the best available font for a face.
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1312* Font Lookup:: Looking up the names of available fonts
1313 and information about them.
1314* Fontsets:: A fontset is a collection of fonts
1315 that handle a range of character sets.
561c0216 1316* Low-Level Font:: Lisp representation for character display fonts.
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1317
1318Fringes
1319
1320* Fringe Size/Pos:: Specifying where to put the window fringes.
1321* Fringe Indicators:: Displaying indicator icons in the window fringes.
1322* Fringe Cursors:: Displaying cursors in the right fringe.
1323* Fringe Bitmaps:: Specifying bitmaps for fringe indicators.
1324* Customizing Bitmaps:: Specifying your own bitmaps to use in the fringes.
1325* Overlay Arrow:: Display of an arrow to indicate position.
1326
1327The @code{display} Property
1328
561c0216 1329* Replacing Specs:: Display specs that replace the text.
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1330* Specified Space:: Displaying one space with a specified width.
1331* Pixel Specification:: Specifying space width or height in pixels.
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1332* Other Display Specs:: Displaying an image; adjusting the height,
1333 spacing, and other properties of text.
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1334* Display Margins:: Displaying text or images to the side of
1335 the main text.
1336
1337Images
1338
561c0216 1339* Image Formats:: Supported image formats.
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1340* Image Descriptors:: How to specify an image for use in @code{:display}.
1341* XBM Images:: Special features for XBM format.
1342* XPM Images:: Special features for XPM format.
1343* GIF Images:: Special features for GIF format.
561c0216 1344* TIFF Images:: Special features for TIFF format.
2833b3ff 1345* PostScript Images:: Special features for PostScript format.
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1346* Other Image Types:: Various other formats are supported.
1347* Defining Images:: Convenient ways to define an image for later use.
1348* Showing Images:: Convenient ways to display an image once
1349 it is defined.
1350* Image Cache:: Internal mechanisms of image display.
1351
1352Buttons
1353
1354* Button Properties:: Button properties with special meanings.
1355* Button Types:: Defining common properties for classes of buttons.
1356* Making Buttons:: Adding buttons to Emacs buffers.
1357* Manipulating Buttons:: Getting and setting properties of buttons.
1358* Button Buffer Commands:: Buffer-wide commands and bindings for buttons.
1359
1360Abstract Display
1361
1362* Abstract Display Functions:: Functions in the Ewoc package.
1363* Abstract Display Example:: Example of using Ewoc.
1364
1365Display Tables
1366
1367* Display Table Format:: What a display table consists of.
1368* Active Display Table:: How Emacs selects a display table to use.
1369* Glyphs:: How to define a glyph, and what glyphs mean.
1370
1371Operating System Interface
1372
561c0216 1373* Starting Up:: Customizing Emacs startup processing.
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1374* Getting Out:: How exiting works (permanent or temporary).
1375* System Environment:: Distinguish the name and kind of system.
1376* User Identification:: Finding the name and user id of the user.
d24880de 1377* Time of Day:: Getting the current time.
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1378* Time Conversion:: Converting a time from numeric form to
1379 calendrical data and vice versa.
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1380* Time Parsing:: Converting a time from numeric form to text
1381 and vice versa.
1382* Processor Run Time:: Getting the run time used by Emacs.
1383* Time Calculations:: Adding, subtracting, comparing times, etc.
d24880de 1384* Timers:: Setting a timer to call a function at a
561c0216 1385 certain time.
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1386* Idle Timers:: Setting a timer to call a function when Emacs has
1387 been idle for a certain length of time.
1388* Terminal Input:: Accessing and recording terminal input.
1389* Terminal Output:: Controlling and recording terminal output.
1390* Sound Output:: Playing sounds on the computer's speaker.
121e43fd 1391* X11 Keysyms:: Operating on key symbols for X Windows.
b8d4c8d0 1392* Batch Mode:: Running Emacs without terminal interaction.
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1393* Session Management:: Saving and restoring state with
1394 X Session Management.
b8d4c8d0 1395
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1396Preparing Lisp code for distribution
1397
1398* Packaging Basics:: The basic concepts of Emacs Lisp packages.
1399* Simple Packages:: How to package a single .el file.
1400* Multi-file Packages:: How to package multiple files.
1401
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1402Starting Up Emacs
1403
561c0216
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1404* Startup Summary:: Sequence of actions Emacs performs at startup.
1405* Init File:: Details on reading the init file.
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1406* Terminal-Specific:: How the terminal-specific Lisp file is read.
1407* Command-Line Arguments:: How command-line arguments are processed,
1408 and how you can customize them.
1409
1410Getting Out of Emacs
1411
1412* Killing Emacs:: Exiting Emacs irreversibly.
1413* Suspending Emacs:: Exiting Emacs reversibly.
1414
1415Terminal Input
1416
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1417* Input Modes:: Options for how input is processed.
1418* Recording Input:: Saving histories of recent or all input events.
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1419
1420Tips and Conventions
1421
1422* Coding Conventions:: Conventions for clean and robust programs.
1423* Key Binding Conventions:: Which keys should be bound by which programs.
1424* Programming Tips:: Making Emacs code fit smoothly in Emacs.
1425* Compilation Tips:: Making compiled code run fast.
1426* Warning Tips:: Turning off compiler warnings.
1427* Documentation Tips:: Writing readable documentation strings.
d24880de 1428* Comment Tips:: Conventions for writing comments.
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1429* Library Headers:: Standard headers for library packages.
1430
1431GNU Emacs Internals
1432
1433* Building Emacs:: How the dumped Emacs is made.
1434* Pure Storage:: A kludge to make preloaded Lisp functions sharable.
1435* Garbage Collection:: Reclaiming space for Lisp objects no longer used.
1436* Memory Usage:: Info about total size of Lisp objects made so far.
1437* Writing Emacs Primitives:: Writing C code for Emacs.
1438* Object Internals:: Data formats of buffers, windows, processes.
1439
1440Object Internals
1441
1442* Buffer Internals:: Components of a buffer structure.
1443* Window Internals:: Components of a window structure.
1444* Process Internals:: Components of a process structure.
1445@end detailmenu
1446@end menu
1447
1448@include intro.texi
1449@include objects.texi
1450@include numbers.texi
1451@include strings.texi
1452
1453@include lists.texi
1454@include sequences.texi
1455@include hash.texi
1456@include symbols.texi
1457@include eval.texi
1458
1459@include control.texi
1460@include variables.texi
1461@include functions.texi
1462@include macros.texi
1463
1464@include customize.texi
1465@include loading.texi
1466@include compile.texi
1467@include advice.texi
1468
561c0216 1469@c This includes edebug.texi.
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1470@include debugging.texi
1471@include streams.texi
1472@include minibuf.texi
1473@include commands.texi
1474
1475@include keymaps.texi
1476@include modes.texi
1477@include help.texi
1478@include files.texi
1479
1480@include backups.texi
1481@include buffers.texi
1482@include windows.texi
1483@include frames.texi
1484
1485@include positions.texi
1486@include markers.texi
1487@include text.texi
1488@include nonascii.texi
1489
1490@include searching.texi
1491@include syntax.texi
1492@include abbrevs.texi
1493@include processes.texi
1494
1495@include display.texi
1496@include os.texi
1497
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1498@include package.texi
1499
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1500@c MOVE to Emacs Manual: include misc-modes.texi
1501
1502@c appendices
1503
1504@c REMOVE this: include non-hacker.texi
1505
1506@include anti.texi
1507@include doclicense.texi
1508@include gpl.texi
1509@include tips.texi
1510@include internals.texi
1511@include errors.texi
1512@include locals.texi
1513@include maps.texi
1514@include hooks.texi
1515
1516@include index.texi
1517
1518@ignore
1519@node New Symbols, , Index, Top
1520@unnumbered New Symbols Since the Previous Edition
1521
1522@printindex tp
1523@end ignore
1524
1525@bye
1526
1527\f
1528These words prevent "local variables" above from confusing Emacs.