# Style sheet for C
# Copyright (c) 1995-2000 Akim Demaille, Miguel Santana
#

#
# This file is part of a2ps.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; see the file COPYING.  If not, see
# <https://www.gnu.org/licenses/gpl-3.0.html>.
#

style C is
requires a2ps 4.12c

written by "Akim Demaille <akim@freefriends.org>"
version is 1.6
documentation is
   "This style does not highlight the function definitions."
   "Another style which highlights them, GNUish C, is provided (gnuc.ssh)."
   "It works only if you respect some syntactic conventions."
end documentation

alphabets are
   "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_#$%"

case sensitive

ancestors are
  cpp
end ancestors

keywords in Keyword are
   double, enum, void, int, long, FILE, struct, char, signed, float,
   short, unsigned
end keywords

keywords in Keyword_strong are
   auto, "case", const, continue, do, inline, extern, for, register,
   return, switch, union, goto, typedef, sizeof, typeof, volatile, static,
   NULL, default, break, if, while, else
end keywords

optional operators are
  (/(case)([ 	]+)(.+)([ 	]*:)/
   \1 Keyword_strong, \2 Plain, \3 Label, \4 Plain)
end operators

optional operators are
   -> \rightarrow,
   && \wedge,
   || \vee,
   != \neq,
   == \equiv,
   # We need to protect these, so that <= is not replaced in <<=
   <<=,
   >>=,
   <= \leq,
   >= \geq,
   ! \not
end operators

sequences are
    "/*" Comment "*/",
    "//" Comment,
    C-string,
    # We do not want C-string in ASM to be declared as string,
    # since it pollutes the layout.
    (/(asm)([[:blank:]]*\\([[:blank:]]*")/
	\1 Keyword_strong, \2 Plain)
        Plain
        "\"" Plain
	exceptions are
	  (/(\\\\.)/ \1)
	end exceptions,
    C-char
end sequences

end style
