180 lines
3.8 KiB
Bash
180 lines
3.8 KiB
Bash
#!/bin/sh
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#
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# smistrip --
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#
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# Extract MIB modules from text files, like RFCs or I-Ds.
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#
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# This is variant of smistrip from libsmi-0.2, modified to be somewhat
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# more aggressive in suppressing blank lines, and support the -x option.
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#
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# Copyright (c) 1999 Frank Strauss, Technical University of Braunschweig.
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# Modified by Niels Baggesen
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#
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# See the file "COPYING" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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# $Id: smistrip,v 5.3 2005/02/08 20:06:34 nba Exp $
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#
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# NOTE, that this script relies on awk (tested with GNU awk) and getopts
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# (shell builtin like in bash or standalone).
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#
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AWK=awk
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[ `uname` != SunOS ] || AWK=/usr/bin/nawk
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GETOPTS=getopts
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VERSION=0.3-cvs
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do_version () {
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echo "smistrip $VERSION"
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}
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do_usage () {
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echo "Usage: smistrip [-Vhn] [-d dir] [-s suffix] [-m modules] file ..."
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echo "-V show version and license information"
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echo "-v verbose"
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echo "-h show usage information"
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echo "-n do not write module files"
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echo "-d dir write module to directory dir"
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echo "-x suffix append suffix to the module file name"
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echo "-m modules strip only the specified modules. For a list of modules"
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echo " use : as a separator"
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echo "file ... input files to parse (RFCs, I-Ds, ...)"
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}
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do_strip () {
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cat $1 | $AWK -v test="$test" -v dir="$dir" -v single="$single" -v suffix="$suffix" -v verbose="$verbose" '
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BEGIN {
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if (length(single) != 0) {
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single = ":"single":"
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}
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else {
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single = ""
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}
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}
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END {
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if (single != "" && single != ":") {
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gsub(":", " ", single)
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print "WARNING: Module(s) not found:" single
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}
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}
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# start of module
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/^[ \t]*[A-Za-z0-9-]* *DEFINITIONS *::= *BEGIN/ {
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module = $1
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collect = 1
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macro = 0
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n = 0
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}
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# page footer - start skipping
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/\[Page [iv0-9]*\] */ {
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collect = 0
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next
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}
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/^[ \t]*(::=|DESCRIPTION|SYNTAX|MAX-ACCESS|MIN-ACCESS|ACCESS|STATUS|REFERENCE|INDEX|AUGMENTS|DEFVAL|UNITS|DISPLAY|")/ {
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if (collect)
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if (line[n-1] == "") n--
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}
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# a blank line - suppress multiple
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/^[ \t\r]*$/ {
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if (collect)
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if (line[n-1] != "" && line[n-1] !~ /,[ \t\r]*$/) line[n++] = ""
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next
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}
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# collect non-blank line when inside mib module
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/[^ \f\t]/ {
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if (length(module) > 0) {
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if (!collect)
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collect = 1 # page header, stop skipping
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else
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line[n++] = $0
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}
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}
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# remember when we enter a macro definition
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/ *MACRO *::=/ {
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macro = 1
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}
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# end of module
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/^[ \t]*END[ \t\r]*$/ {
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if (macro)
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macro = 0
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else if (single == "" || match(single, ":"module":")) {
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sub(":"module, "", single)
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strip = 99
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for (i = 0 ; i < n ; i++) {
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# find the minimum column that contains non-blank characters
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# in order to cut a blank prefix off.
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p = match(line[i], "[^ ]")
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if (p < strip && length(line[i]) > p) strip = p
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}
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if (test != "1") {
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if (dir)
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f = dir "/" module suffix
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else
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f = module suffix
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for (i = 0 ; i < n ; i++)
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print substr(line[i], strip) >f
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}
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if (verbose) {
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print module ": " n " lines."
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}
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module = ""
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collect = 0
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}
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else
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print "NOTE: " module ": ignored."
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}
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'
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}
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while $GETOPTS Vvhnm:d:x: c ; do
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case $c in
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v) verbose=1
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;;
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n) test=1
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;;
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m) single=$OPTARG
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;;
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d) dir=$OPTARG
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;;
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x) suffix=$OPTARG
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;;
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h) do_usage
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exit 0
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;;
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V) do_version
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exit 0
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;;
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*) do_usage
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exit 1
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;;
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esac
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done
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shift `expr $OPTIND - 1`
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if [ $# -eq 0 ] ; then
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do_strip -
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else
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for f in $@ ; do
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do_strip $f
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done
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fi
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exit 0
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