Difference between revisions of "C-mode"

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{{Infobox major-mode
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#REDIRECT [[CC-mode]]
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|title = C
 
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|library = cc-mode
 
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|command = c-mode
 
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|builtin = yes
 
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|auto activates = *.c *.h *.xbm *.xpm *.y *.yacc *.lex *.i *.m
 
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}}
 
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'''c-mode''' is the default [[major mode]] for editing [[C]] source files. It's major features are customizable indentation and font-locking (coloring of code).
 
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<!-----DONT REMOVE ANYTHING FROM THIS TEMPLATE ------------------------------>
 
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<!-----FEW MONTHS, YEARS FROM NOW, MAYBE WE CAN DELETE STUFF. NOT NOW ------------------>
 
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<!-----YOU DON"T WANT WIKEMACS TO BE ANOTHER EMACSWIKI RIGHT ------------------>
 
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<!-----PLEASE BE PATIENT AND CO-OPERATE FOR GREATER GOOD ------------------>
 
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<!------------------------------------------------------------------------->
 
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= Basic setup =
 
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c-mode is bundled with Emacs by default. No additional setup is required.
 
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= Helpful keybindings =
 
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; {{Keys|C-M-a}}
 
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: Go to the beginning of the current function. If you are between 2 functions, go the start of the previous one.
 
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; {{Keys|C-M-e}}
 
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: Go to the end of the current function. If you are between 2 functions, go to the end of the next one.
 
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; {{Keys|C-M-h}}
 
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: Mark current function
 
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; {{Keys|M-a}}
 
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: Go to beginning of current statement (or next one).
 
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; {{Keys|M-e}}
 
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: Go to end of current statement (or previous one).
 
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<!------------------------------------------------------------------------->
 
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= Common Customization =
 
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<!-- Customization common to all platforms goes here -->
 
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== Style ==
 
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Any mode based on {{ModeLink|cc-mode}} provides automatic indentation. The default style is <code>gnu</code>. It is the one recommended by the Free Software Foundation for GNU projects but you can use a different one.
 
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Here is a basic list of predefined styles:
 
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; <code>gnu</code>
 
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: The default style for GNU projects
 
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; <code>k&r</code>
 
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: What Kernighan and Ritchie, the authors of C used in their book
 
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; <code>bsd</code>
 
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: What BSD developers use, aka “Allman style” after Eric Allman.
 
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; <code>whitesmith</code>
 
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: Popularized by the examples that came with Whitesmiths C, an early commercial C compiler.
 
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; <code>stroustrup</code>
 
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: What Stroustrup, the author of C++ used in his book
 
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; <code>ellemtel</code>
 
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: Popular C++ coding standards as defined by “Programming in C++, Rules and Recommendations,” Erik Nyquist and Mats Henricson, Ellemtel
 
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; <code>linux</code>
 
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: What the Linux developers use for kernel development
 
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; <code>python</code>
 
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: What Python developers use for extension modules
 
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; <code>java</code>
 
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: The default style for java-mode (see below)
 
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; <code>user</code>
 
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: When you want to define your own style
 
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You can look the [http://cc-mode.sourceforge.net/html-manual/Built_002din-Styles.html#Built_002din-Styles cc-mode documentation] for a complete list of builtin style.
 
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For visual example of each style you can look the [http://en.wikipedia.org/wiki/Indent_style Wikipedia article on indenting style].
 
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* The default style is set via the variable {{Variable|c-default-style}}
 
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* Use {{CommandKeys|C-c .|c-set-style}} to change the indentation style of the current buffer.
 
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* The amount of space use to indent is set via the variable {{Variable|c-basic-offset}}.
 
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To set the default style to K&R and use 4 spaces, add this to your {{EmacsConfigFile}}:
 
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<source lang="lisp">
 
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; set k&r style
 
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(setq c-default-style "k&r")
 
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; indent with 4 spaces
 
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(setq c-basic-offset 4)
 
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</source>
 
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<!------------------------------------------------------------------------->
 
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= [[GNU/Linux]] =
 
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<!-- Customization/Notes specific to GNU/Linux goes here -->
 
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<!------------------------------------------------------------------------->
 
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= [[OS X]] =
 
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<!-- Customization/Notes specific to OS X goes here -->
 
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<!------------------------------------------------------------------------->
 
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= [[Windows]] =
 
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<!-- Customization/Notes specific to Windows goes here -->
 
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<!------------------------------------------------------------------------->
 
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= [[Emacs-24]] =
 
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<!-- Customization/Notes specific to Emacs-24 -->
 
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<!-- Recent revision should come first. This way important information stays at top  -->
 
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<!------------------------------------------------------------------------->
 
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= [[Emacs-23]] =
 
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<!-- Customization/Notes specific to Emacs-22 -->
 
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<!------------------------------------------------------------------------->
 
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= Recommended Reading =
 
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<!-- Only internal links. DO NOT insert EXTERNAL LINKS -->
 
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<!------------------------------------------------------------------------->
 
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= Project Pages =
 
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* [http://cc-mode.sourceforge.net/ cc-mode]
 
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<!------------------------------------------------------------------------->
 
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= Tutorial Pages =
 
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<!-- ;[http://wiki.bazaar.canonical.com/EmacsTips Emacs as commit message editor]  -->
 
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<!-- :Tips for setting up Emacs as Bazaar commit editor. -->
 
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<!------------------------------------------------------------------------->
 
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<!-- Add categories based on user-level (beginner etc), user-role (programming, emacs contributor etc), platform (windows, linux etc) or work flow (text editing, document authoring etc)  -->
 
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[[Category:Programming]]
 

Latest revision as of 11:27, 20 April 2012

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