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- #! /bin/sh
-
- # igawk --- like gawk but do @include processing
- # Arnold Robbins, arnold@gnu.ai.mit.edu, Public Domain
- # July 1993
-
- if [ "$1" = debug ]
- then
- set -x
- shift
- else
- # cleanup on exit, hangup, interrupt, quit, termination
- trap 'rm -f /tmp/ig.[se].$$' 0 1 2 3 15
- fi
-
- while [ $# -ne 0 ] # loop over arguments
- do
- case $1 in
- --) shift; break;;
-
- -W) shift
- set -- -W"$@"
- continue;;
-
- -[vF]) opts="$opts $1 '$2'"
- shift;;
-
- -[vF]*) opts="$opts '$1'" ;;
-
- -f) echo @include "$2" >> /tmp/ig.s.$$
- shift;;
-
- -f*) f=`echo "$1" | sed 's/-f//'`
- echo @include "$f" >> /tmp/ig.s.$$ ;;
-
- -?file=*) # -Wfile or --file
- f=`echo "$1" | sed 's/-.file=//'`
- echo @include "$f" >> /tmp/ig.s.$$ ;;
-
- -?file) # get arg, $2
- echo @include "$2" >> /tmp/ig.s.$$
- shift;;
-
- -?source=*) # -Wsource or --source
- t=`echo "$1" | sed 's/-.source=//'`
- echo "$t" >> /tmp/ig.s.$$ ;;
-
- -?source) # get arg, $2
- echo "$2" >> /tmp/ig.s.$$
- shift;;
-
- -?version)
- echo igawk: version 1.0 1>&2
- gawk --version
- exit 0 ;;
-
- -[W-]*) opts="$opts '$1'" ;;
-
- *) break;;
- esac
- shift
- done
-
- if [ ! -s /tmp/ig.s.$$ ]
- then
- if [ -z "$1" ]
- then
- echo igawk: no program! 1>&2
- exit 1
- else
- echo "$1" > /tmp/ig.s.$$
- shift
- fi
- fi
-
- # at this point, /tmp/ig.s.$$ has the program
- gawk -- '
- # process @include directives
-
- function pathto(file, i, t, junk)
- {
- if (index(file, "/") != 0)
- return file
-
- for (i = 1; i <= ndirs; i++) {
- t = (pathlist[i] "/" file)
- if ((getline junk < t) > 0) {
- # found it
- close(t)
- return t
- }
- }
- return ""
- }
- BEGIN {
- path = ENVIRON["AWKPATH"]
- ndirs = split(path, pathlist, ":")
- for (i = 1; i <= ndirs; i++) {
- if (pathlist[i] == "")
- pathlist[i] = "."
- }
- stackptr = 0
- input[stackptr] = ARGV[1] # ARGV[1] is first file
-
- for (; stackptr >= 0; stackptr--) {
- while ((getline < input[stackptr]) > 0) {
- if (tolower($1) != "@include") {
- print
- continue
- }
- fpath = pathto($2)
- if (fpath == "") {
- printf("igawk:%s:%d: cannot find %s\n", \
- input[stackptr], FNR, $2) > "/dev/stderr"
- continue
- }
- if (! (fpath in processed)) {
- processed[fpath] = input[stackptr]
- input[++stackptr] = fpath
- } else
- print $2, "included in", input[stackptr], \
- "already included in", \
- processed[fpath] > "/dev/stderr"
- }
- close(input[stackptr])
- }
- }' /tmp/ig.s.$$ > /tmp/ig.e.$$
- eval gawk -f /tmp/ig.e.$$ $opts -- "$@"
-
- exit $?
-