nagios-mode.el: GPL -> AGPL in the header

[nagios-mode.git] / utils / parse_object_definitions

diff --git a/utils/parse_object_definitions b/utils/parse_object_definitions
index dd303683ff7140a3f160ab47692649eee60a6a41..aaa6c314e3a154199f1ac9f6abf90dc9a8886bfe 100755 (executable)
--- a/utils/parse_object_definitions
+++ b/utils/parse_object_definitions
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 #
 # Parse the object names out of Nagios' xdata/xodtemplate.h, and
 # convert them to their definition format.
@@ -8,41 +8,29 @@
 
 EXIT_USAGE=1
 EXIT_INPUT_FILE_DOESNT_EXIST=2
-EXIT_OUTPUT_FILE_EXISTS=3
 
-if [ $# -lt 2 ]; then
-    echo "Usage: $0 <input_file> <output_file>"
+if [ $# -lt 1 ]; then
+    echo "Usage: $0 <input_file>"
     exit $EXIT_USAGE
 fi
 
 
 INFILE="$1"
-OUTFILE="$2"
 
 if [ ! -f "$INFILE" ]; then
     echo "Error: input file $INFILE doesn't exist."
     exit $EXIT_INPUT_FILE_DOESNT_EXIST
 fi
 
-if [ -f "$OUTFILE" ]; then
-    echo "Error: output file $OUTFILE already exists."
-    exit $EXIT_OUTPUT_FILE_EXISTS
-fi
-
-# Common options. Color screws up the output.
-GREP="grep --extended-regexp --color=never"
-
-# Grep grabs all of the "#define XODTEMPLATE_..." lines, except for
-# XODTEMPLATE_NONE, which ain't real.
-#
-# Sed removes the "XODTEMPLATE_" prefixes, then tr lowercases everything.
-#
-# Oh and we sort everything, add "define ", and surround each line with
-# quotes, because we can get away with it here.
-#
-$GREP --only-matching '[[:space:]]XODTEMPLATE_[[:alnum:]_]+' "$INFILE" \
-    | $GREP -v 'XODTEMPLATE_NONE'                                      \
-    | sed 's/ XODTEMPLATE_//g'                                         \
-    | tr '[A-Z]' '[a-z]'                                               \
-    | sort                                                             \
-    | sed -e 's/^/\"define /g' -e 's/$/\"/g' >> "$OUTFILE"
+# Sed grabs all of the "#define XODTEMPLATE_FOO" lines, pulls out the
+# FOO part, and then prints "define FOO", surrounded in
+# quotes. Afterwards we prune the two lines corresponding to
+# XODTEMPLATE_NULL and XODTEMPLATE_NONE which do not correspond to
+# real object types. Finally we lowercase everything with tr, and sort
+# the result.
+XOD_REGEX='#define[[:space:]]\{1,\}XODTEMPLATE_\([^[:space:]]\{1,\}\)[[:space:]]\{1,\}.*'
+
+sed -n "s/${XOD_REGEX}/\"define \1\"/p" "${INFILE}" \
+  | sed '/define NULL\|NONE/d'                      \
+  | tr '[A-Z]' '[a-z]'                              \
+  | sort                                            \