This is Info file texi.info, produced by Makeinfo-1.55 from the input file texi.texi. This file documents Texinfo, a documentation system that uses a single source file to produce both on-line information and a printed manual. Copyright (C) 1988, 1990, 1991, 1992, 1993 Free Software Foundation, This is the second edition of the Texinfo documentation, and is consistent with version 2 of `texinfo.tex'. Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Permission is granted to copy and distribute translations of this manual into another language, under the above conditions for modified versions, except that this permission notice may be stated in a translation approved by the Free Software Foundation. File: texi.info, Node: Batch Formatting, Next: Tag and Split Files, Prev: texinfo-format commands, Up: Create an Info File Batch Formatting ================ You can format Texinfo files for Info using `batch-texinfo-format' and Emacs Batch mode. You can run Emacs in Batch mode from any shell, including a shell inside of Emacs. (*Note Command Line Switches and Arguments: (emacs)Command Switches.) Here is the command to format all the files that end in `.texinfo' in the current directory (where `%' is the shell prompt): % emacs -batch -funcall batch-texinfo-format *.texinfo Emacs processes all the files listed on the command line, even if an error occurs while attempting to format some of them. Run `batch-texinfo-format' only with Emacs in Batch mode as shown; it is not interactive. It kills the Batch mode Emacs on completion. `batch-texinfo-format' is convenient if you lack `makeinfo' and want to format several Texinfo files at once. When you use Batch mode, you create a new Emacs process. This frees your current Emacs, so you can continue working in it. (When you run `texinfo-format-region' or `texinfo-format-buffer', you cannot use that Emacs for anything else until the command finishes.) File: texi.info, Node: Tag and Split Files, Prev: Batch Formatting, Up: Create an Info File Tag Files and Split Files ========================= If a Texinfo file has more than 30,000 bytes, `texinfo-format-buffer' automatically creates a tag table for its Info file; `makeinfo' always creates a tag table. With a "tag table", Info can jump to new nodes more quickly than it can otherwise. In addition, if the Texinfo file contains more than about 70,000 bytes, `texinfo-format-buffer' and `makeinfo' split the large Info file into shorter "indirect" subfiles of about 50,000 bytes each. Big files are split into smaller files so that Emacs does not need to make a large buffer to hold the whole of a large Info file; instead, Emacs allocates just enough memory for the small, split off file that is needed at the time. This way, Emacs avoids wasting memory when you run Info. (Before splitting was implemented, Info files were always kept short and "include files" were designed as a way to create a single, large printed manual out of the smaller Info files. *Note Include Files::, for more information. Include files are still used for very large documents, such as `The Emacs Lisp Reference Manual', in which each chapter is a separate file.) When a file is split, Info itself makes use of a shortened version of the original file that contains just the tag table and references to the files that were split off. The split off files are called "indirect" files. The split off files have names that are created by appending `-1', `-2', `-3' and so on to the file name specified by the `@setfilename' command. The shortened version of the original file continues to have the name specified by `@setfilename'. At one stage in writing this document, for example, the Info file was saved as `test-texinfo' and that file looked like this: Info file: test-texinfo, -*-Text-*- produced by texinfo-format-buffer from file: new-texinfo-manual.texinfo ^_ Indirect: test-texinfo-1: 102 test-texinfo-2: 50422 test-texinfo-3: 101300 ^_^L Tag table: (Indirect) Node: overview^?104 Node: info file^?1271 Node: printed manual^?4853 Node: conventions^?6855 ... (But `test-texinfo' had far more nodes than are shown here.) Each of the split off, indirect files, `test-texinfo-1', `test-texinfo-2', and `test-texinfo-3', is listed in this file after the line that says `Indirect:'. The tag table is listed after the line that says `Tag table:'. In the list of indirect files, the number following the file name records the cumulative number of bytes in the preceding indirect files, not counting the file list itself, the tag table, or the permissions text in each file. In the tag table, the number following the node name records the location of the beginning of the node, in bytes from the beginning. If you are using `texinfo-format-buffer' to create Info files, you may want to run the `Info-validate' command. (The `makeinfo' command does such a good job on its own, you do not need `Info-validate'.) However, you cannot run the `M-x Info-validate' node-checking command on indirect files. For information on how to prevent files from being split and how to validate the structure of the nodes, see *Note Using Info-validate::. File: texi.info, Node: Install an Info File, Next: Command List, Prev: Create an Info File, Up: Top Installing an Info File *********************** Info files are usually kept in the `info' directory. (You can find the location of this directory within Emacs by typing `C-h i' to enter Info and then typing `C-x C-f' to see the full pathname to the `info' directory.) * Menu: * Directory file:: The top level menu for all Info files. * New Info File:: Listing a new info file. * Other Info Directories:: How to specify Info files that are located in other directories. File: texi.info, Node: Directory file, Next: New Info File, Up: Install an Info File The `dir' File ============== For Info to work, the `info' directory must contain a file that serves as a top level directory for the Info system. By convention, this file is called `dir'. The `dir' file is itself an Info file. It contains the top level menu for all the Info files in the system. The menu looks like this: * Menu: * Info: (info). Documentation browsing system. * Emacs: (emacs). The extensible, self-documenting text editor. * Texinfo: (texinfo). With one source file, make either a printed manual using TeX or an Info file. ... Each of these menu entries points to the `Top' node of the Info file that is named in parentheses. (The menu entry does not need to specify the `Top' node, since Info goes to the `Top' node if no node name is mentioned. *Note Nodes in Other Info Files: Other Info Files.) Thus, the `Info' entry points to the `Top' node of the `info' file and the `Emacs' entry points to the `Top' node of the `emacs' file. In each of the Info files, the `Up' pointer of the `Top' node refers back to the `dir' file. For example, the line for the `Top' node of the Emacs manual looks like this in Info: File: emacs Node: Top, Up: (DIR), Next: Distrib (Note that in this case, the `dir' file name is written in upper case letters--it can be written in either upper or lower case. Info has a feature that it will change the case of the file name to lower case if it cannot find the name as written.) File: texi.info, Node: New Info File, Next: Other Info Directories, Prev: Directory file, Up: Install an Info File Listing a New Info File ======================= To add a new Info file to your system, write a menu entry for it in the menu in the `dir' file in the `info' directory. Also, move the new Info file itself to the `info' directory. For example, if you were adding documentation for GDB, you would write the following new entry: * GDB: (gdb). The source-level C debugger. The first part of the menu entry is the menu entry name, followed by a colon. The second part is the name of the Info file, in parentheses, followed by a period. The third part is the description. Conventionally, the name of an Info file has a `.info' extension. Thus, you might list the name of the file like this: * GDB: (gdb.info). The source-level C debugger. However, Info will look for a file with a `.info' extension if it does not find the file under the name given in the menu. This means that you can refer to the file `gdb.info' as `gdb', as shown in the first example. This looks better. File: texi.info, Node: Other Info Directories, Prev: New Info File, Up: Install an Info File Info Files in Other Directories =============================== If an Info file is not in the `info' directory, there are two ways to specify its location: * Write the pathname as the menu's second part, or; * Specify the `info' directory name in an environment variable in your `.profile' or `.cshrc' initialization file. (Only you and others with the same environment variable will be able to find Info files whose location is specified this way.) For example, to reach a test file in the `~bob/manuals' directory, you could add an entry like this to the menu in the `dir' file: * Test: (~bob/manuals/info-test). Bob's own test file. In this case, the absolute file name of the `info-test' file is written as the second part of the menu entry. Alternatively, you can tell Info where to look by setting the `INFOPATH' environment variable in your `.cshrc' or `.profile' file. If you use `sh' or `bash' for your shell command interpreter, you must set the `INFOPATH' environment variable in the `.profile' initialization file; but if you use `csh', you must set the variable in the `.cshrc' initialization file. The two files require slightly different command formats. * In a `.cshrc' file, you could set the `INFOPATH' variable as follows: setenv INFOPATH .:~bob/manuals:/gnu/emacs/info * In a `.profile' file, you would achieve the same effect by writing: INFOPATH=.:~bob/manuals:/gnu/emacs/info export INFOPATH Either form would cause Info to look first in the current directory, indicated by the `.', then in the `~bob/manuals' directory, and finally in the `/gnu/emacs/info' directory (which is a common location for the standard Info directory). File: texi.info, Node: Command List, Next: Tips, Prev: Install an Info File, Up: Top @-Command List ************** Here is an alphabetical list of the @-commands in Texinfo. Square brackets, [ ], indicate optional arguments; an ellipsis, `...', indicates repeated text. Force a line break. Do not end a paragraph that uses `@*' with an `@refill' command. *Note Line Breaks::. Stands for a period that really does end a sentence (usually after an end-of-sentence capital letter). *Note Controlling Spacing::. Indicate to TeX that an immediately preceding period, question mark, exclamation mark, or colon does not end a sentence. Prevent TeX from inserting extra whitespace as it does at the end of a sentence. The command has no effect on the Info file output. *Note Controlling Spacing::. Stands for `@'. *Note Inserting `@': Braces Atsigns Periods. Stands for a left-hand brace, `{'. *Note Inserting @ braces and periods: Braces Atsigns Periods. Stands for a right-hand brace, `}'. *Note Inserting @ braces and periods: Braces Atsigns Periods. `@appendix TITLE' Begin an appendix. The title appears in the table of contents of a printed manual. In Info, the title is underlined with asterisks. *Note The `@unnumbered' and `@appendix' Commands: unnumbered & appendix. `@appendixsec TITLE' `@appendixsection TITLE' Begin an appendix section within an appendix. The section title appears in the table of contents of a printed manual. In Info, the title is underlined with equal signs. `@appendixsection' is a longer spelling of the `@appendixsec' command. *Note Section Commands: unnumberedsec appendixsec heading. `@appendixsubsec TITLE' Begin an appendix subsection within an appendix. The title appears in the table of contents of a printed manual. In Info, the title is underlined with hyphens. *Note Subsection Commands: unnumberedsubsec appendixsubsec subheading. `@appendixsubsubsec TITLE' Begin an appendix subsubsection within a subappendix. The title appears in the table of contents of a printed manual. In Info, the title is underlined with periods. *Note The `subsub' Commands: subsubsection. `@asis' Used following `@table', `@ftable', and `@vtable' to print the table's first column without highlighting ("as is"). *Note Making a Two-column Table: Two-column Tables. `@author AUTHOR' Typeset AUTHOR flushleft and underline it. *Note The `@title' and `@author' Commands: title subtitle author. `@b{TEXT}' Print TEXT in bold font. No effect in Info. *Note Fonts::. `@bullet{}' Generate a large round dot, or the closest possible thing to one. *Note `@bullet': bullet. `@bye' Stop formatting a file. The formatters do not see the contents of a file following an `@bye' command. *Note Ending a File::. `@c COMMENT' Begin a comment in Texinfo. The rest of the line does not appear in either the Info file or the printed manual. A synonym for `@comment'. *Note General Syntactic Conventions: Conventions. `@cartouche' Highlight an example or quotation by drawing a box with rounded corners around it. Pair with `@end cartouche'. No effect in Info. *Note Drawing Cartouches Around Examples: cartouche.) `@center LINE-OF-TEXT' Center the line of text following the command. *Note `@center': titlefont center sp. `@chapheading TITLE' Print a chapter-like heading in the text, but not in the table of contents of a printed manual. In Info, the title is underlined with asterisks. *Note `@majorheading' and `@chapheading': majorheading & chapheading. `@chapter TITLE' Begin a chapter. The chapter title appears in the table of contents of a printed manual. In Info, the title is underlined with asterisks. *Note `@chapter': chapter. `@cindex ENTRY' Add ENTRY to the index of concepts. *Note Defining the Entries of an Index: Index Entries. `@cite{REFERENCE}' Highlight the name of a book or other reference that lacks a companion Info file. *Note `@cite': cite. `@clear FLAG' Unset FLAG, preventing the Texinfo formatting commands from formatting text between subsequent pairs of `@ifset FLAG' and `@end ifset' commands, and preventing `@value{FLAG}' from expanding to the value to which FLAG is set. *Note `@set' `@clear' `@value': set clear value. `@code{SAMPLE-CODE}' Highlight text that is an expression, a syntactically complete token of a program, or a program name. *Note `@code': code. `@comment COMMENT' Begin a comment in Texinfo. The rest of the line does not appear in either the Info file or the printed manual. A synonym for `@c'. *Note General Syntactic Conventions: Conventions. `@contents' Print a complete table of contents. Has no effect in Info, which uses menus instead. *Note Generating a Table of Contents: Contents. `@copyright{}' Generate a copyright symbol. *Note `@copyright': copyright symbol. `@defcodeindex INDEX-NAME' Define a new index and its indexing command. Print entries in an `@code' font. *Note Defining New Indices: New Indices. `@defcv CATEGORY CLASS NAME' Format a description for a variable associated with a class in object-oriented programming. Takes three arguments: the category of thing being defined, the class to which it belongs, and its name. *Note Definition Commands::. `@deffn CATEGORY NAME ARGUMENTS...' Format a description for a function, interactive command, or similar entity that may take arguments. `@deffn' takes as arguments the category of entity being described, the name of this particular entity, and its arguments, if any. *Note Definition Commands::. `@defindex INDEX-NAME' Define a new index and its indexing command. Print entries in a roman font. *Note Defining New Indices: New Indices. `@defivar CLASS INSTANCE-VARIABLE-NAME' Format a description for an instance variable in object-oriented programming. The command is equivalent to `@defcv {Instance Variable} ...'. *Note Definition Commands::. `@defmac MACRO-NAME ARGUMENTS...' Format a description for a macro. The command is equivalent to `@deffn Macro ...'. *Note Definition Commands::. `@defmethod CLASS METHOD-NAME ARGUMENTS...' Format a description for a method in object-oriented programming. The command is equivalent to `@defop Method ...'. Takes as arguments the name of the class of the method, the name of the method, and its arguments, if any. *Note Definition Commands::. `@defop CATEGORY CLASS NAME ARGUMENTS...' Format a description for an operation in object-oriented programming. `@defop' takes as arguments the overall name of the category of operation, the name of the class of the operation, the name of the operation, and its arguments, if any. *Note Definition Commands::. `@defopt OPTION-NAME' Format a description for a user option. The command is equivalent to `@defvr {User Option} ...'. *Note Definition Commands::. `@defspec SPECIAL-FORM-NAME ARGUMENTS...' Format a description for a special form. The command is equivalent to `@deffn {Special Form} ...'. *Note Definition Commands::. `@deftp CATEGORY NAME-OF-TYPE ATTRIBUTES...' Format a description for a data type. `@deftp' takes as arguments the category, the name of the type (which is a word like `int' or `float'), and then the names of attributes of objects of that type. *Note Definition Commands::. `@deftypefn CLASSIFICATION DATA-TYPE NAME ARGUMENTS...' Format a description for a function or similar entity that may take arguments and that is typed. `@deftypefn' takes as arguments the classification of entity being described, the type, the name of the entity, and its arguments, if any. *Note Definition Commands::. `@deftypefun DATA-TYPE FUNCTION-NAME ARGUMENTS...' Format a description for a function in a typed language. The command is equivalent to `@deftypefn Function ...'. *Note Definition Commands::. `@deftypevr CLASSIFICATION DATA-TYPE NAME' Format a description for something like a variable in a typed language--an entity that records a value. Takes as arguments the classification of entity being described, the type, and the name of the entity. *Note Definition Commands::. `@deftypevar DATA-TYPE VARIABLE-NAME' Format a description for a variable in a typed language. The command is equivalent to `@deftypevr Variable ...'. *Note Definition Commands::. `@defun FUNCTION-NAME ARGUMENTS...' Format a description for functions. The command is equivalent to `@deffn Function ...'. *Note Definition Commands::. `@defvar VARIABLE-NAME' Format a description for variables. The command is equivalent to `@defvr Variable ...'. *Note Definition Commands::. `@defvr CATEGORY NAME' Format a description for any kind of variable. `@defvr' takes as arguments the category of the entity and the name of the entity. *Note Definition Commands::. `@dfn{TERM}' Highlight the introductory or defining use of a term. *Note `@dfn': dfn. `@display' Begin a kind of example. Indent text, do not fill, do not select a new font. Pair with `@end display'. *Note `@display': display. `@dmn{DIMENSION}' Format a dimension. Cause TeX to insert a narrow space before DIMENSION. No effect in Info. Use for writing a number followed by an abbreviation of a dimension name, such as `12pt', written as `12@dmn{pt}', with no space between the number and the `@dmn' command. *Note `@dmn': dmn. `@dots{}' Insert an ellipsis: `...'. *Note `@dots': dots. `@emph{TEXT}' Highlight TEXT; text is displayed in *italics* in printed output, and surrounded by asterisks in Info. *Note Emphasizing Text: Emphasis. `@enumerate [NUMBER-OR-LETTER]' Begin a numbered list, using `@item' for each entry. Optionally, start list with NUMBER-OR-LETTER. Pair with `@end enumerate'. *Note `@enumerate': enumerate. `@equiv{}' Indicate to the reader the exact equivalence of two forms with a glyph: `=='. *Note Equivalence::. `@error{}' Indicate to the reader with a glyph that the following text is an error message: `error-->'. *Note Error Glyph::. `@evenfooting [LEFT] @| [CENTER] @| [RIGHT]' Specify page footings for even-numbered (left-hand) pages. Not relevant to Info. *Note How to Make Your Own Headings: Custom Headings. `@evenheading [LEFT] @| [CENTER] @| [RIGHT]' Specify page headings for even-numbered (left-hand) pages. Not relevant to Info. *Note How to Make Your Own Headings: Custom Headings. `@everyfooting [LEFT] @| [CENTER] @| [RIGHT]' Specify page footings for every page. Not relevant to Info. *Note How to Make Your Own Headings: Custom Headings. `@everyheading [LEFT] @| [CENTER] @| [RIGHT]' Specify page headings for every page. Not relevant to Info. *Note How to Make Your Own Headings: Custom Headings. `@example' Begin an example. Indent text, do not fill, and select fixed-width font. Pair with `@end example'. *Note `@example': example. `@exdent LINE-OF-TEXT' Remove any indentation a line might have. *Note Undoing the Indentation of a Line: exdent. `@expansion{}' Indicate the result of a macro expansion to the reader with a special glyph: `==>'. *Note ==> Indicating an Expansion: expansion. `@file{FILENAME}' Highlight the name of a file, buffer, node, or directory. *Note `@file': file. `@finalout' Prevent TeX from printing large black warning rectangles beside over-wide lines. *Note Overfull hboxes::. `@findex ENTRY' Add ENTRY to the index of functions. *Note Defining the Entries of an Index: Index Entries. `@flushleft' Left justify every line but leave the right end ragged. Leave font as is. Pair with `@end flushleft'. *Note `@flushleft' and `@flushright': flushleft & flushright. `@flushright' Right justify every line but leave the left end ragged. Leave font as is. Pair with `@end flushright'. *Note `@flushleft' and `@flushright': flushleft & flushright. `@footnote{TEXT-OF-FOOTNOTE}' Enter a footnote. Footnote text is printed at the bottom of the page by TeX; Info may format in either `End' node or `Separate' node style. *Note Footnotes::. `@footnotestyle STYLE' Specify an Info file's footnote style, either `end' for the end node style or `separate' for the separate node style. *Note Footnotes::. `@format' Begin a kind of example. Like `@example' or `@display', but do not narrow the margins and do not select the fixed-width font. Pair with `@end format'. *Note `@example': example. `@ftable FORMATTING-COMMAND' Begin a two-column table, using `@item' for each entry. Automatically enter each of the items in the first column into the index of functions. Pair with `@end ftable'. The same as `@table', except for indexing. *Note `@ftable' and `@vtable': ftable vtable. `@group' Hold text together that must appear on one printed page. Pair with `@end group'. Not relevant to Info. *Note `@group': group. `@heading TITLE' Print an unnumbered section-like heading in the text, but not in the table of contents of a printed manual. In Info, the title is underlined with equal signs. *Note Section Commands: unnumberedsec appendixsec heading. `@headings ON-OFF-SINGLE-DOUBLE' Turn page headings on or off, or specify single-sided or double-sided page headings for printing. `@headings on' is synonymous with `@headings double'. *Note The `@headings' Command: headings on off. `@i{TEXT}' Print TEXT in italic font. No effect in Info. *Note Fonts::. `@ifclear FLAG' If FLAG is cleared, the Texinfo formatting commands format text between `@ifclear FLAG' and the following `@end ifclear' command. *Note `@set' `@clear' `@value': set clear value. `@ifinfo' Begin a stretch of text that will be ignored by TeX when it typesets the printed manual. The text appears only in the Info file. Pair with `@end ifinfo'. *Note Conditionally Visible Text: Conditionals. `@ifset FLAG' If FLAG is set, the Texinfo formatting commands format text between `@ifset FLAG' and the following `@end ifset' command. *Note `@set' `@clear' `@value': set clear value. `@iftex' Begin a stretch of text that will not appear in the Info file, but will be processed only by TeX. Pair with `@end iftex'. *Note Conditionally Visible Text: Conditionals. `@ignore' Begin a stretch of text that will not appear in either the Info file or the printed output. Pair with `@end ignore'. *Note Comments and Ignored Text: Comments. `@include FILENAME' Incorporate the contents of the file FILENAME into the Info file or printed document. *Note Include Files::. `@inforef{NODE-NAME, [ENTRY-NAME], INFO-FILE-NAME}' Make a cross reference to an Info file for which there is no printed manual. *Note Cross references using `@inforef': inforef. `\input MACRO-DEFINITIONS-FILE' Use the specified macro definitions file. This command is used only in the first line of a Texinfo file to cause TeX to make use of the `texinfo' macro definitions file. The backslash in `\input' is used instead of an `@' because TeX does not properly recognize `@' until after it has read the definitions file. *Note The Texinfo File Header: Header. `@item' Indicate the beginning of a marked paragraph for `@itemize' and `@enumerate'; indicate the beginning of the text of a first column entry for `@table', `@ftable', and `@vtable'. *Note Lists and Tables::. `@itemize MARK-GENERATING-CHARACTER-OR-COMMAND' Produce a sequence of indented paragraphs, with a mark inside the left margin at the beginning of each paragraph. Pair with `@end itemize'. *Note `@itemize': itemize. `@itemx' Like `@item' but do not generate extra vertical space above the item text. *Note `@itemx': itemx. `@kbd{KEYBOARD-CHARACTERS}' Indicate text that consists of characters of input to be typed by users. *Note `@kbd': kbd. `@key{KEY-NAME}' Highlight KEY-NAME, a conventional name for a key on a keyboard. *Note `@key': key. `@kindex ENTRY' Add ENTRY to the index of keys. *Note Defining the Entries of an Index: Index Entries. `@lisp' Begin an example of Lisp code. Indent text, do not fill, and select fixed-width font. Pair with `@end lisp'. *Note `@lisp': Lisp Example. `@majorheading TITLE' Print a chapter-like heading in the text, but not in the table of contents of a printed manual. Generate more vertical whitespace before the heading than the `@chapheading' command. In Info, the chapter heading line is underlined with asterisks. *Note `@majorheading' and `@chapheading': majorheading & chapheading. `@menu' Mark the beginning of a menu of nodes in Info. No effect in a printed manual. Pair with `@end menu'. *Note Menus::. `@minus{}' Generate a minus sign. *Note `@minus': minus. `@need N' Start a new page in a printed manual if fewer than N mils (thousandths of an inch) remain on the current page. *Note `@need': need. `@node NAME, NEXT, PREVIOUS, UP' Define the beginning of a new node in Info, and serve as a locator for references for TeX. *Note `@node': node. `@noindent' Prevent text from being indented as if it were a new paragraph. *Note `@noindent': noindent. `@oddfooting [LEFT] @| [CENTER] @| [RIGHT]' Specify page footings for odd-numbered (right-hand) pages. Not relevant to Info. *Note How to Make Your Own Headings: Custom Headings. `@oddheading [LEFT] @| [CENTER] @| [RIGHT]' Specify page headings for odd-numbered (right-hand) pages. Not relevant to Info. *Note How to Make Your Own Headings: Custom Headings. `@page' Start a new page in a printed manual. No effect in Info. *Note `@page': page. `@paragraphindent INDENT' Indent paragraphs by INDENT number of spaces; delete indentation if the value of INDENT is 0; and do not change indentation if INDENT is `asis'. *Note Paragraph Indenting: paragraphindent. `@pindex ENTRY' Add ENTRY to the index of programs. *Note Defining the Entries of an Index: Index Entries. `@point{}' Indicate the position of point in a buffer to the reader with a glyph: `-!-'. *Note Indicating Point in a Buffer: Point Glyph. `@print{}' Indicate printed output to the reader with a glyph: `-|'. *Note Print Glyph::. `@printindex INDEX-NAME' Print an alphabetized two-column index in a printed manual or generate an alphabetized menu of index entries for Info. *Note Printing Indices & Menus::. `@pxref{NODE-NAME, [ENTRY], [TOPIC-OR-TITLE], [INFO-FILE], [MANUAL]}' Make a reference that starts with a lower case `see' in a printed manual. Use within parentheses only. Do not follow command with a punctuation mark. The Info formatting commands automatically insert terminating punctuation as needed, which is why you do not need to insert punctuation. Only the first argument is mandatory. *Note `@pxref': pxref. `@quotation' Narrow the margins to indicate text that is quoted from another real or imaginary work. Write command on a line of its own. Pair with `@end quotation'. *Note `@quotation': quotation. `@r{TEXT}' Print TEXT in roman font. No effect in Info. *Note Fonts::. `@ref{NODE-NAME, [ENTRY], [TOPIC-OR-TITLE], [INFO-FILE], [MANUAL]}' Make a reference. In a printed manual, the reference does not start with a `See'. Follow command with a punctuation mark. Only the first argument is mandatory. *Note `@ref': ref. `@refill' In Info, refill and indent the paragraph after all the other processing has been done. No effect on TeX, which always refills. This command is no longer needed, since all formatters now automatically refill. *Note Refilling Paragraphs::. `@result{}' Indicate the result of an expression to the reader with a special glyph: `=>'. *Note `@result': result. `@samp{TEXT}' Highlight TEXT that is a literal example of a sequence of characters. Used for single characters, for statements, and often for entire shell commands. *Note `@samp': samp. `@sc{TEXT}' Set TEXT in a printed output in THE SMALL CAPS FONT and set text in the Info file in uppercase letters. *Note Smallcaps::. `@section TITLE' Begin a section within a chapter. In a printed manual, the section title is numbered and appears in the table of contents. In Info, the title is underlined with equal signs. *Note `@section': section. `@set FLAG [STRING]' Make FLAG active, causing the Texinfo formatting commands to format text between subsequent pairs of `@ifset FLAG' and `@end ifset' commands. Optionally, set value of FLAG to STRING. *Note `@set' `@clear' `@value': set clear value. `@setchapternewpage ON-OFF-ODD' Specify whether chapters start on new pages, and if so, whether on odd-numbered (right-hand) new pages. *Note `@setchapternewpage': setchapternewpage. `@setfilename INFO-FILE-NAME' Provide a name for the Info file. *Note General Syntactic Conventions: Conventions. `@settitle TITLE' Provide a title for page headers in a printed manual. *Note General Syntactic Conventions: Conventions. `@shortcontents' Print a short table of contents. Not relevant to Info, which uses menus rather than tables of contents. A synonym for `@summarycontents'. *Note Generating a Table of Contents: Contents. `@smallbook' Cause TeX to produce a printed manual in a 7 by 9.25 inch format rather than the regular 8.5 by 11 inch format. *Note Printing Small Books: smallbook. Also, see *Note `@smallexample' and `@smalllisp': smallexample & smalllisp. `@smallexample' Indent text to indicate an example. Do not fill, select fixed-width font. In `@smallbook' format, print text in a smaller font than with `@example'. Pair with `@end smallexample'. *Note `@smallexample' and `@smalllisp': smallexample & smalllisp. `@smalllisp' Begin an example of Lisp code. Indent text, do not fill, select fixed-width font. In `@smallbook' format, print text in a smaller font. Pair with `@end smalllisp'. *Note `@smallexample' and `@smalllisp': smallexample & smalllisp. `@sp N' Skip N blank lines. *Note `@sp': sp. `@strong TEXT' Emphasize TEXT by typesetting it in a *bold* font for the printed manual and by surrounding it with asterisks for Info. *Note Emphasizing Text: emph & strong. `@subheading TITLE' Print an unnumbered subsection-like heading in the text, but not in the table of contents of a printed manual. In Info, the title is underlined with hyphens. *Note `@unnumberedsubsec' `@appendixsubsec' `@subheading': unnumberedsubsec appendixsubsec subheading. `@subsection TITLE' Begin a subsection within a section. In a printed manual, the subsection title is numbered and appears in the table of contents. In Info, the title is underlined with hyphens. *Note `@subsection': subsection. `@subsubheading TITLE' Print an unnumbered subsubsection-like heading in the text, but not in the table of contents of a printed manual. In Info, the title is underlined with periods. *Note The `subsub' Commands: subsubsection. `@subsubsection TITLE' Begin a subsubsection within a subsection. In a printed manual, the subsubsection title is numbered and appears in the table of contents. In Info, the title is underlined with periods. *Note The `subsub' Commands: subsubsection. `@subtitle TITLE' In a printed manual, set a subtitle in a normal sized font flush to the right-hand side of the page. Not relevant to Info, which does not have title pages. *Note `@title' `@subtitle' and `@author' Commands: title subtitle author. `@summarycontents' Print a short table of contents. Not relevant to Info, which uses menus rather than tables of contents. A synonym for `@shortcontents'. *Note Generating a Table of Contents: Contents. `@syncodeindex FROM-INDEX INTO-INDEX' Merge the index named in the first argument into the index named in the second argument, printing the entries from the first index in `@code' font. *Note Combining Indices::. `@synindex FROM-INDEX INTO-INDEX' Merge the index named in the first argument into the index named in the second argument. Do not change the font of FROM-INDEX entries. *Note Combining Indices::. `@t{TEXT}' Print TEXT in a fixed-width, typewriter-like font. No effect in Info. *Note Fonts::. `@table FORMATTING-COMMAND' Begin a two-column table, using `@item' for each entry. Write each first column entry on the same line as `@item'. First column entries are printed in the font resulting from FORMATTING-COMMAND. Pair with `@end table'. *Note Making a Two-column Table: Two-column Tables. Also see *Note `@ftable' and `@vtable': ftable vtable, and *Note `@itemx': itemx. `@TeX{}' Insert the logo TeX. *Note Inserting TeX and (C): TeX and copyright. `@tex' Enter TeX completely. Pair with `@end tex'. *Note Using Ordinary TeX Commands: Using Ordinary TeX Commands. `@thischapter' In a heading or footing, stands for the number and name of the current chapter, in the format `Chapter 1: Title'. *Note How to Make Your Own Headings: Custom Headings. `@thischaptername' In a heading or footing, stands for the name of the current chapter. *Note How to Make Your Own Headings: Custom Headings. `@thisfile' In a heading or footing, stands for the name of the current `@include' file. Does not insert anything if not within an `@include' file. *Note How to Make Your Own Headings: Custom Headings. `@thispage' In a heading or footing, stands for the current page number. *Note How to Make Your Own Headings: Custom Headings. `@thistitle' In a heading or footing, stands for the name of the document, as specified by the `@settitle' command. *Note How to Make Your Own Headings: Custom Headings. `@tindex ENTRY' Add ENTRY to the index of data types. *Note Defining the Entries of an Index: Index Entries. `@title TITLE' In a printed manual, set a title flush to the left-hand side of the page in a larger than normal font and underline it with a black rule. Not relevant to Info, which does not have title pages. *Note The `@title' `@subtitle' and `@author' Commands: title subtitle author. `@titlefont{TEXT}' In a printed manual, print TEXT in a larger than normal font. Not relevant to Info, which does not have title pages. *Note The `@titlefont' `@center' and `@sp' Commands: titlefont center sp. `@titlepage' Indicate to Texinfo the beginning of the title page. Write command on a line of its own. Pair with `@end titlepage'. Nothing between `@titlepage' and `@end titlepage' appears in Info. *Note `@titlepage': titlepage. `@today{}' Insert the current date, in `1 Jan 1900' style. *Note How to Make Your Own Headings: Custom Headings. `@top TITLE' In a Texinfo file to be formatted with `makeinfo', identify the topmost `@node' line in the file, which must be written on the line immediately preceding the `@top' command. Used for `makeinfo''s node pointer insertion feature. The title is underlined with asterisks. Both the `@node' line and the `@top' line normally should be enclosed by `@ifinfo' and `@end ifinfo'. In TeX and `texinfo-format-buffer', the `@top' command is merely a synonym for `@unnumbered'. *Note Creating Pointers with `makeinfo': makeinfo Pointer Creation. `@unnumbered TITLE' In a printed manual, begin a chapter that appears without chapter numbers of any kind. The title appears in the table of contents of a printed manual. In Info, the title is underlined with asterisks. *Note `@unnumbered' and `@appendix': unnumbered & appendix. `@unnumberedsec TITLE' In a printed manual, begin a section that appears without section numbers of any kind. The title appears in the table of contents of a printed manual. In Info, the title is underlined with equal signs. *Note Section Commands: unnumberedsec appendixsec heading. `@unnumberedsubsec TITLE' In a printed manual, begin an unnumbered subsection within a chapter. The title appears in the table of contents of a printed manual. In Info, the title is underlined with hyphens. *Note `@unnumberedsubsec' `@appendixsubsec' `@subheading': unnumberedsubsec appendixsubsec subheading. `@unnumberedsubsubsec TITLE' In a printed manual, begin an unnumbered subsubsection within a chapter. The title appears in the table of contents of a printed manual. In Info, the title is underlined with periods. *Note The `subsub' Commands: subsubsection. `@value{FLAG}' Replace FLAG with the value to which it is set by `@set FLAG'. *Note `@set' `@clear' `@value': set clear value. `@var{METASYNTACTIC-VARIABLE}' Highlight a metasyntactic variable, which is something that stands for another piece of text. *Note Indicating Metasyntactic Variables: var. `@vindex ENTRY' Add ENTRY to the index of variables. *Note Defining the Entries of an Index: Index Entries. `@vskip AMOUNT' In a printed manual, insert whitespace so as to push text on the remainder of the page towards the bottom of the page. Used in formatting the copyright page with the argument `0pt plus 1filll'. (Note spelling of `filll'.) `@vskip' may be used only in contexts ignored for Info. *Note The Copyright Page and Printed Permissions: Copyright & Permissions. `@vtable FORMATTING-COMMAND' Begin a two-column table, using `@item' for each entry. Automatically enter each of the items in the first column into the index of variables. Pair with `@end vtable'. The same as `@table', except for indexing. *Note `@ftable' and `@vtable': ftable vtable. `@w{TEXT}' Prevent TEXT from being split across two lines. Do not end a paragraph that uses `@w' with an `@refill' command. In the Texinfo file, keep TEXT on one line. *Note `@w': w. `@xref{NODE-NAME, [ENTRY], [TOPIC-OR-TITLE], [INFO-FILE], [MANUAL]}' Make a reference that starts with `See' in a printed manual. Follow command with a punctuation mark. Only the first argument is mandatory. *Note `@xref': xref.