5e494f36ae
updated the script that extracts the asn1 from the specification (we modified it after noticing that it currently fails to take the IMPORT section). It should also work now to extract the WCDMA RRC (TS 25.331). svn path=/trunk/; revision=36442
74 lines
2.2 KiB
Perl
Executable file
74 lines
2.2 KiB
Perl
Executable file
#$Id$
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#!/usr/bin/perl
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# 2011 Vincent Helfre and Erwan Yvin
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# This script extracts the ASN1 definition from and TS 36.331/25.331 and generates asn files that can be processed by asn2wrs
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# First download the specification from 3gpp.org as a word document and open it
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# Then in "view" menu, select normal, draft or web layout (any kind that removes page header and footers)
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# Finally save the document as a text file
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# Example with TS 36.331: "perl extract_asn1_from_spec.pl 36331-xxx.txt"
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# It should generate: EUTRA-RRC-Definitions.asn, EUTRA-UE-Variables.asn and EUTRA-InterNodeDefinitions
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use warnings;
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$input_file = $ARGV[0];
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$version = 0;
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sub extract_spec_version;
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sub extract_asn1;
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open(INPUT_FILE, "< $input_file") or die "Can not open file $input_file";
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extract_spec_version();
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extract_asn1();
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close(INPUT_FILE);
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# This subroutine extracts the version of the specification
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sub extract_spec_version {
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my $line;
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while($line = <INPUT_FILE>){
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if($line =~ m/3GPP TS (25|36)\.331 V/){
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$version = $line;
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return;
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}
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}
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}
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# This subroutine copies the text delimited by -- ASN1START and -- ASN1STOP in INPUT_FILE
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# and copies it into OUTPUT_FILE.
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# The OUTPUT_FILE is opened on encounter of the keyword "DEFINITIONS AUTOMATIC TAGS"
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# and closed on encounter of the keyword "END"
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sub extract_asn1 {
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my $line;
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my $is_asn1 = 0;
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my $output_file_name = 0;
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while($line = <INPUT_FILE>){
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if ($line =~ m/-- ASN1STOP/) {
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$is_asn1 = 0;
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}
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if($line =~ m/DEFINITIONS AUTOMATIC TAGS ::=/){
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($output_file_name) = ($line =~ m/^([a-zA-Z\-]+)\s+DEFINITIONS AUTOMATIC TAGS ::=/);
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$output_file_name = "$output_file_name".".asn";
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print "generating $output_file_name\n";
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open(OUTPUT_FILE, "> $output_file_name") or die "Can not open file $output_file_name";
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syswrite OUTPUT_FILE,"-- $version-- \$Id$output_file_name 32781 2010-05-12 05:51:54Z etxrab \$\n--\n";
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$is_asn1 = 1;
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}
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if (($line =~ /END$/) && (defined fileno OUTPUT_FILE)){
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syswrite OUTPUT_FILE,"$line";
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close(OUTPUT_FILE);
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$is_asn1 = 0;
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}
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if (($is_asn1 == 1) && (defined fileno OUTPUT_FILE)){
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syswrite OUTPUT_FILE,"$line";
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}
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if ($line =~ m/-- ASN1START/) {
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$is_asn1 = 1;
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}
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}
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}
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