Manual Pages for UNIX Operating System command usage for man Compose

File Formats                                           Compose(4)



NAME
     Compose - X client mappings for multi-key input sequences

DESCRIPTION
     The X library, libX11, provides a simple  input  method  for
     characters  beyond  those  represented  on typical keyboards
     using sequences of key strokes that are combined to enter  a
     single character.

     The compose file is searched for in  the following order:

     -    If the environment variable $XCOMPOSEFILE is  set,  its
          value is used as the name of the Compose file.

     -    If the user's home directory has a  file  named  .XCom-
          pose, it is used as the Compose file.

     -    The system provided compose file is used by mapping the
          locale   to   a   compose   file   from   the  list  in
          /usr/share/X11/locale/compose.dir.

     Compose files can use an "include" instruction.   This  allows
     local  modifications  to  be  made to existing compose files
     without including all of the content directly.  For example,
     the  system's  iso8859-1 compose file can be included with a
     line like this:
         include "%S/iso8859-1/Compose"

     There are several substitutions that can be made in the file
     name of the include instruction:

     %H  expands to the user's home directory (the $HOME environ-
         ment variable)

     %L  expands to the name of the locale specific Compose  file
         (i.e., "/usr/share/X11/locale//Compose")

     %S  expands to the name of the system directory for  Compose
         files (i.e., "/usr/share/X11/locale")

     For example, you  can  include  in  your  compose  file  the
     default Compose file by using:
          include "%L"
     and then rewrite only the few rules that you need to change.
     New compose rules can be added, and previous ones replaced.

FILE FORMAT
     Compose files are plain text files, with a separate line for
     each  compose  sequence.   Comments begin with # characters.
     Each compose sequence specifies one or  more  events  and  a
     resulting  input  sequence,  with an optional comment at the
     end of the line:



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File Formats                                           Compose(4)



          EVENT [EVENT...] : RESULT [# COMMENT]

     Each  event  consists  of  a  specified  input  keysym,  and
     optional modifier states:
          [MODIFIER_LIST] 

     Each modifier consists of a specified modifier and a state:
          (! MODIFIER ) | None
     Modifiers may be preceded by a "~" character to indicate  that
     the modifier must not be present.

     The result specifies a string, keysym, or both, that  the  X
     client  receives  as  input  when  the sequence of events is
     input:
          "STRING" | keysym | "STRING" keysym

     Keysyms are specified without the XK_ prefix.

     Strings may be direct text encoded in the locale  for  which
     the compose file is to be used, or an escaped octal or hexa-
     decimal character code.   Octal codes are specified as  "\123"
     and  hexadecimal  codes  as "\0x123a".  It is not necessary to
     specify in the right part of a rule a locale encoded  string
     in  addition  to the keysym name.  If the string is omitted,
     Xlib figures it out from the keysym according to the current
     locale.  I.e., if a rule looks like:
            : "\300" Agrave
     the result of the composition is always the letter with  the
     "\300" code.  But if the rule is:
            : Agrave
     the result depends on how Agrave is mapped  in  the  current
     locale.

ENVIRONMENT
     XCOMPOSEFILE
          File to use for compose sequences.

     XCOMPOSECACHE
          Directory to use for caching compiled compose files.

FILES
     $HOME/.XCompose
          User default compose file if XCOMPOSEFILE is not set.

     /usr/share/X11/locale/compose.dir
          File listing the compose file  path  to  use  for  each
          locale.

     /usr/share/X11/locale//Compose
          System default compose file for the locale, mapped  via
          compose.dir.




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File Formats                                           Compose(4)



     /var/cache/libx11/compose/
          System-wide cache directory for compiled compose files.

     $HOME/.compose-cache/
          Per-user cache directory for compiled compose files.

SEE ALSO
     XLookupString(3x11),                  XmbLookupString(3x11),
     XwcLookupString(3x11),    Xutf8LookupString(3x11),    mkcom-
     posecache(1), locale(5).
     Xlib - C Language X Interface


ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:

     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | x11/library/libx11          |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | See XInitThreads(3X11)      |
    |_____________________________|_____________________________|





























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