1#!/bin/sh
2#
3# USAGE: get-version.sh path/to/expat.h
4#
5# This script will print Expat's version number on stdout. For example:
6#
7#   $ ./conftools/get-version.sh ./lib/expat.h
8#   1.95.3
9#   $
10#
11
12if test $# = 0; then
13  echo "ERROR: pathname for expat.h was not provided."
14  echo ""
15  echo "USAGE: $0 path/to/expat.h"
16  exit 1
17fi
18if test $# != 1; then
19  echo "ERROR: too many arguments were provided."
20  echo ""
21  echo "USAGE: $0 path/to/expat.h"
22  exit 1
23fi
24
25hdr="$1"
26if test ! -r "$hdr"; then
27  echo "ERROR: '$hdr' does not exist, or is not readable."
28  exit 1
29fi
30
31MAJOR_VERSION="`sed -n -e '/MAJOR_VERSION/s/[^0-9]*//gp' $hdr`"
32MINOR_VERSION="`sed -n -e '/MINOR_VERSION/s/[^0-9]*//gp' $hdr`"
33MICRO_VERSION="`sed -n -e '/MICRO_VERSION/s/[^0-9]*//gp' $hdr`"
34
35# Determine how to tell echo not to print the trailing \n. This is
36# similar to Autoconf's @ECHO_C@ and @ECHO_N@; however, we don't
37#  generate this file via autoconf (in fact, get-version.sh is used
38# to *create* ./configure), so we just do something similar inline.
39case `echo "testing\c"; echo 1,2,3`,`echo -n testing; echo 1,2,3` in
40  *c*,-n*) ECHO_N= ECHO_C='
41' ;;
42  *c*,*  ) ECHO_N=-n ECHO_C= ;;
43  *)      ECHO_N= ECHO_C='\c' ;;
44esac
45
46echo $ECHO_N "$MAJOR_VERSION.$MINOR_VERSION.$MICRO_VERSION$ECHO_C"
47