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    1 #
    2 # Copyright (c) 2015
    3 #	Tama Communications Corporation
    4 #
    5 # This file is part of GNU GLOBAL.
    6 #
    7 # This program is free software: you can redistribute it and/or modify
    8 # it under the terms of the GNU General Public License as published by
    9 # the Free Software Foundation, either version 3 of the License, or
   10 # (at your option) any later version.
   11 # 
   12 # This program is distributed in the hope that it will be useful,
   13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
   15 # GNU General Public License for more details.
   16 # 
   17 # You should have received a copy of the GNU General Public License
   18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
   19 #
   20 @HEADER	GTAGS.CONF,5,Nov 2015,GNU Project
   21 @NAME	gtags.conf - configuration data for GNU GLOBAL
   23 	@file{gtags.conf}
   24 	@file{~/.globalrc}
   26 	@file{gtags.conf} has configuration data for @xref{global,1}, @xref{gozilla,1},
   27 	@xref{gtags,1} and @xref{htags,1}. They look for the following files in this order,
   28 	and read from the first one that exists and is readable.
   29 	@begin_itemize
   30 	@item{(1) --gtagsconf @arg{file}}
   31 	@item{(2) $GTAGSCONF}
   32 	@item{(3) [project root]/gtags.conf}
   33 	@item{(4) [project root]/[objdir]/gtags.conf}
   34 	@item{(5) $HOME/.globalrc}
   35 	@item{(6) /etc/gtags.conf}
   36 	@item{(7) [sysconfdir]/gtags.conf}
   37 	@end_itemize
   39 	[sysconfdir] is @file{/usr/local/etc} by default; you can change it by the --sysconfdir
   40 	option of the configure script. [objdir] is @file{obj} by default; you can change it
   41 	by @var{GTAGSOBJDIR} or @var{MAKEOBJDIR}.
   43 	Its syntax is similar to @xref{termcap,5} except for some extensions described later.
   44 	A file includes one or more records. You should select a record using a label.
   45 	Default label is @samp{default}. If @var{GTAGSLABEL} is set, its value is used.
   46 	Please be aware the meaning of @samp{default} is different from that of @xref{termcap,5}.
   48 	Lines starting with @samp{#} are ignored.
   49 	A record consists of one or more fields separated by @samp{:} and ends with a newline.
   50 	The first field must have a label name. Each field of the rest has a variable definition.
   51 	There are three types in those variables.
   52 	@begin_itemize
   53 	@item{Boolean: This type has no value; existence of variable means true else false.}
   54 	@item{Number: This type has a number value after @samp{#}.}
   55 	@item{String: This type has a string value after @samp{=}.}
   56 	@end_itemize
   57 	Most variables are relevant to string type.
   59 	If data includes @samp{:} or newline, you need to quote it by @samp{\}.
   60 	An empty field is permitted, but it doesn't make sense.
   62 	When there is more than one definition, the previous one is adopted. 
   63 	Exceptionally, all values of @name{skip}, @name{langmap} and @name{gtags_parser} are
   64 	adopted and connected respectively.
   65 @Variable substitution
   66 	Variable substitution similar to @xref{sh,1} is available.
   67 	You can refer to any string variable using @samp{$} prefix. For example, the following
   68 	@name{b} has a value @samp{XYZ}.
   69 	@begin_verbatim
   70 	:a=Y:b=X${a}Z:
   71 	@end_verbatim
   72 @Including another record
   73 	@name{Tc} is a special variable; it reads in definitions in another record.
   74 	It is similar to the @name{tc} of @xref{termcap,5}.
   75 	Its syntax is as follows:@br
   76 	@name{tc}=@arg{label}[@@@arg{file}]@br
   77 	If only a @arg{label} is given, @name{tc} is read from a record specified by the @arg{label}
   78 	in the same file. If @@@arg{file} is also given, @name{tc} is read from a record
   79 	specified by the @arg{label} in the specified @arg{file}.
   80 	@arg{File} should be an absolute path, and should not include variables.
   81 	Different from @xref{termcap,5}, you can use @name{tc} anytime anywhere.
   83 	About variables for each command, please see each manual.
   85 	You can use the following environment variables as a string variable.
   86 	If these variables are set then environment variables of the same name are set before
   87 	command execution.@br
   88 	@name{GREP_COLOR}@br
   89 	@name{GREP_COLORS}@br
   90 	@name{GTAGSBLANKENCODE}@br
   91 	@name{GTAGSCACHE}@br
   92 	@name{GTAGSFORCECPP}@br
   93 	@name{GTAGSGLOBAL}@br
   94 	@name{GTAGSGTAGS}@br
   95 	@name{GTAGSLIBPATH}@br
   96 	@name{GTAGSLOGGING}@br
   97 	@name{GTAGSTHROUGH}@br
   98 	@name{GTAGS_OPTIONS}@br
   99 	@name{HTAGS_OPTIONS}@br
  100 	@name{MAKEOBJDIR}@br
  101 	@name{MAKEOBJDIRPREFIX}@br
  102 	@name{TMPDIR}@br
  104 	The following variables are also available as a string variable.
  105 	By default, each of them has a directory path given by the configure
  106 	script.@br
  107 	@name{bindir}@br
  108 	@name{datadir}@br
  109 	@name{libdir}@br
  110 	@name{localstatedir}@br
  111 	@name{sysconfdir}@br
  113 	The following environment variables affect the execution of the commands.
  115 	@begin_itemize
  116 	@item{@var{GTAGSCONF}}
  117 		If this variable is set, the value is used as a configuration file.
  118 	@item{@var{GTAGSLABEL}}
  119 		If this variable is set, the value is used as a label of the configuration file.
  120 		The default is @arg{default}.
  121 	@end_itemize
  122 @SEE ALSO
  123 	@xref{global,1},
  124 	@xref{gozilla,1},
  125 	@xref{gtags,1},
  126 	@xref{htags,1}.
  128 	GNU GLOBAL source code tag system@br
  129 	(http://www.gnu.org/software/global/).
  130 @HISTORY
  131 	The @name{gtags.conf} file appeared in GLOBAL-3.0 (1998).