degenerate let forms

[bpt/guile.git] / libguile / guile-snarf-docs.in

diff --git a/libguile/guile-snarf-docs.in b/libguile/guile-snarf-docs.in
dissimilarity index 80%
index 338b710..c33a5ec 100755 (executable)
--- a/libguile/guile-snarf-docs.in
+++ b/libguile/guile-snarf-docs.in
@@ -1,32 +1,68 @@
-#!/bin/sh
-# Extract the doc stuff for builtin things.
-#
-#  Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
-# 
-# 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 2, 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 software; see the file COPYING.  If not, write to
-# the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
-# Boston, MA 02111-1307 USA
-
-bindir=`dirname $0`
-
-temp="/tmp/snarf.$$"
-trap "rm -f $temp" 0 1 2 15
-
-## Let the user override the preprocessor autoconf found.
-test -n "${CPP+set}" || CPP="@CPP@"
-
-## We must use a temporary file here, instead of a pipe, because we
-## need to know if CPP exits with a non-zero status.
-${CPP} -DSCM_MAGIC_SNARF_DOCS "$@" > ${temp} || exit $?
-< ${temp} ${bindir}/guile_filter_doc_snarfage
+#!/bin/sh
+# guile-snarf-docs --- Extract the doc stuff for builtin things.
+##
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001,
+#   2006, 2010 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as
+# published by the Free Software Foundation; either version 3, or (at
+# your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this software; see the file COPYING.LESSER.  If
+# not, write to the Free Software Foundation, Inc., 51 Franklin
+# Street, Fifth Floor, Boston, MA 02110-1301 USA
+##
+# Usage: guile-snarf-docs -o DOC SRC -- [CPPSNARFOPTS...]
+##
+
+filter='./guile_filter_doc_snarfage@EXEEXT@'
+
+## Let the user override the preprocessor autoconf found.
+test -n "${CPP+set}" || CPP="@CPP@"
+
+## Likewise for AWK.
+test -n "${AWK+set}" || AWK="@AWK@"
+
+bummer ()
+{
+    echo 'Bad command-line' $1
+    exit 1
+}
+
+test "x$1" = x-o || bummer
+shift
+
+test "x$1" = x && bummer ': missing DOC'
+output="$1"
+temout="$output"T
+shift
+
+test "x$1" && test -r "$1" || bummer ': missing SRC'
+input="$1"
+shift
+
+test "x$1" = x-- || bummer
+shift
+
+# Before snarfing, do the function name check.
+${AWK} -f '@srcdir@/guile-func-name-check' "$input" || exit 1
+
+# Snarfing takes two steps: cpp and tokenization.
+# If cpp fails, don't bother with tokenization.
+if ${CPP} -DSCM_MAGIC_SNARF_DOCS "$@" "$input" > "$temout" ; then
+    $filter --filter-snarfage < "$temout" > "$output"
+    rv=0
+else
+    rv=1
+fi
+rm -f "$temout"
+exit $rv
+
+# guile-snarf-docs ends here