This commit was generated by cvs2svn to compensate for changes in r151497,

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1 files changed, 85 insertions, 0 deletions

diff --git a/contrib/groff/contrib/grap2graph/grap2graph.sh b/contrib/groff/contrib/grap2graph/grap2graph.sh
new file mode 100644
index 000000000000..7c830c1a2519
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+++ b/contrib/groff/contrib/grap2graph/grap2graph.sh
@@ -0,0 +1,85 @@
+#! /bin/sh
+#
+# grap2graph -- compile graph description descriptions to bitmap images
+#
+# by Eric S. Raymond <esr@thyrsus.com>, May 2003
+#
+# In Unixland, the magic is in knowing what to string together...
+#
+# Take grap description on stdin, emit cropped bitmap on stdout.
+# The pic markup should *not* be wrapped in .G1/.G2, this script will do that.
+# A -U option on the command line enables gpic/groff "unsafe" mode.
+# A -format FOO option changes the image output format to any format
+# supported by convert(1).  All other options are passed to convert(1).
+# The default format is PNG.
+#
+
+# Requires the groff suite and the ImageMagick tools.  Both are open source.
+# This code is released to the public domain.
+#
+# Here are the assumptions behind the option processing:
+#
+# 1. None of the options of grap(1) are relevant.
+#
+# 2. Only the -U option of groff(1) is relevant.
+#
+# 3. Many options of convert(1) are potentially relevant, (especially 
+# -density, -interlace, -transparency, -border, and -comment).
+#
+# Thus, we pass -U to groff(1), and everything else to convert(1).
+#
+# $Id: grap2graph.sh,v 1.4 2005/05/18 07:03:06 wl Exp $
+#
+groff_opts=""
+convert_opts=""
+format="png"
+
+while [ "$1" ]
+do
+    case $1 in
+    -unsafe)
+	groff_opts="-U";;
+    -format)
+	format=$2
+	shift;;
+    -v | --version)
+	echo "GNU grap2graph (groff) version @VERSION@"
+	exit 0;;
+    --help)
+	echo "usage: grap2graph [ option ...] < in > out"
+	exit 0;;
+    *)
+	convert_opts="$convert_opts $1";;
+    esac
+    shift
+done
+
+# create temporary directory
+tmp=
+for d in "$GROFF_TMPDIR" "$TMPDIR" "$TMP" "$TEMP" /tmp; do
+    test -z "$d" && continue
+
+    tmp=`(umask 077 && mktemp -d -q "$d/grap2graph-XXXXXX") 2> /dev/null` \
+    && test -n "$tmp" && test -d "$tmp" \
+    && break
+
+    tmp=$d/grap2graph$$-$RANDOM
+    (umask 077 && mkdir $tmp) 2> /dev/null && break
+done;
+if test -z "$tmp"; then
+    echo "$0: cannot create temporary directory" >&2
+    { (exit 1); exit 1; }
+fi
+
+trap 'exit_status=$?; rm -rf $tmp && exit $exit_status' 0 2 15 
+
+# Here goes:
+# 1. Add .G1/.G2.
+# 2. Process through grap(1) to emit pic markup.
+# 3. Process through groff(1) with pic preprocessing to emit Postscript.
+# 4. Use convert(1) to crop the Postscript and turn it into a bitmap.
+(echo ".G1"; cat; echo ".G2") | grap | groff -p $groff_opts -Tps -P-pletter | \
+    convert -trim -crop 0x0 $convert_opts - $tmp/grap2graph.$format \
+    && cat $tmp/grap2graph.$format
+
+# End