2 # Extract the initialization actions from source files.
4 # Copyright (C) 1996, 97, 98, 99, 2000, 2001, 2002, 2004, 2006, 2008, 2009 Free Software Foundation, Inc.
6 # This program is free software; you can redistribute it and/or modify
7 # it under the terms of the GNU Lesser General Public License as
8 # published by the Free Software Foundation; either version 3, or (at
9 # your option) any later version.
11 # This program is distributed in the hope that it will be useful, but
12 # WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 # Lesser General Public License for more details.
16 # You should have received a copy of the GNU Lesser General Public
17 # License along with this software; see the file COPYING.LESSER. If
18 # not, write to the Free Software Foundation, Inc., 51 Franklin
19 # Street, Fifth Floor, Boston, MA 02110-1301 USA
23 # Usage: guile-snarf [-o OUTFILE] [CPP-ARGS ...]
25 # Initialization actions are extracted to OUTFILE or to standard
26 # output when no OUTFILE has been specified or when OUTFILE is "-".
27 # The C preprocessor is called with CPP-ARGS (which usually include a
28 # input file) and the output is filtered for the actions.
30 # If there are errors during processing, OUTFILE is deleted and the
31 # program exits with non-zero status.
33 # During snarfing, the pre-processor macro SCM_MAGIC_SNARFER is
34 # defined. You can use this to avoid including snarfer output files
35 # that don't yet exist by writing code like this:
37 # #ifndef SCM_MAGIC_SNARFER
41 # If the environment variable CPP is set, use its value instead of the
42 # C pre-processor determined at Guile configure-time: "@CPP@".
48 modern_snarf
() # writes stdout
50 ## Apparently, AIX's preprocessor is unhappy if you try to #include an
52 echo "/* cpp arguments: $@ */" ;
53 ${cpp} -DSCM_MAGIC_SNARF_INITS -DSCM_MAGIC_SNARFER "$@" > ${temp} && cpp_ok_p
=true
54 sed -ne 's/ *\^ *: *\^/\
61 s/.*\^ *\^ *\(.*\)/\1;/
72 # process command line
73 if [ x
"$1" = x--help
] ; then
74 @AWK@
'/^#.Commentary:/,/^#.Code:/' $0 |
grep -v Code
: \
75 |
sed -e 1,2d
-e 's/^. *//g'
79 then outfile
="$2" ; shift ; shift ;
83 # set vars and handler -- handle CPP override
86 if [ x
"$TMPDIR" = x
]; then TMPDIR
="/tmp" ; else : ; fi
87 tempdir
="$TMPDIR/guile-snarf.$$"
88 (umask 077 && mkdir
$tempdir) ||
exit 1
91 if [ x
"$CPP" = x
] ; then cpp
="@CPP@" ; else cpp
="$CPP" ; fi
93 trap "rm -rf $tempdir" 0 1 2 15
95 if [ ! "$outfile" = "-" ] ; then
96 modern_snarf
"$@" > $outfile
101 # zonk outfile if errors occurred
105 [ ! "$outfile" = "-" ] && rm -f $outfile
109 # guile-snarf ends here