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#!/usr/bin/env perl
#
# Cross-reference RFC attributes.
#
# $Id$
#
$begin_vendor = 0;
$blank = 0;
while (@ARGV) {
$filename = shift;
open FILE, "<$filename" or die "Failed to open $filename: $!\n";
@output = ();
while (<FILE>) {
#
# Clear out trailing whitespace
#
s/[ \t]+$//;
#
# And CR's
#
s/\r//g;
#
# Suppress multiple blank lines
#
if (/^\s+$/) {
next if ($blank == 1);
$blank = 1;
next;
}
$blank = 0;
#
# Remember the vendor
#
if (/^VENDOR\s+([\w-]+)\s+(\w+)(.*)/) {
$name=$1;
$len = length $name;
if ($len < 32) {
$lenx = 32 - $len;
$lenx += 7; # round up
$lenx /= 8;
$lenx = int $lenx;
$tabs = "\t" x $lenx;
} else {
$tabs = " ";
}
$vendor = $name;
next;
}
#
# Remember if we did begin-vendor.
#
if (/^BEGIN-VENDOR\s+([\w-]+)/) {
$begin_vendor = 1;
if (!defined $vendor) {
$vendor = $1;
} elsif ($vendor ne $1) {
# do something smart
}
next;
}
#
# Get attribute.
#
if (/^ATTRIBUTE\s+([\w-]+)\s+(\w+)\s+(\w+)(.*)/) {
$name=$1;
$len = length $name;
if ($len < 40) {
$lenx = 40 - $len;
$lenx += 7; # round up
$lenx /= 8;
$lenx = int $lenx;
$tabs = "\t" x $lenx;
if ($tabs eq "") {
$tabs = " ";
}
} else {
$tabs = " ";
}
$value = $2;
$type = $3;
$stuff = $4;
if ($begin_vendor == 0) {
#
# FIXME: Catch and print conflicting attributes.
#
$file{$value} = $filename;
$file{$value} =~ s/dictionary\.//;
$name{$value} = $name . $tabs;
}
#
# See if it's old format, with the vendor at the end of
# the line. If so, make it the new format.
#
if ($stuff =~ /$vendor/) {
if ($begin_vendor == 0) {
$begin_vendor = 1;
}
$stuff =~ s/$vendor//;
$stuff =~ s/\s+$//;
}
next;
}
#
# Values.
#
if (/^VALUE\s+([\w-]+)\s+([\w-\/,.]+)\s+(\w+)(.*)/) {
$attr=$1;
$len = length $attr;
if ($len < 32) {
$lenx = 32 - $len;
$lenx += 7; # round up
$lenx /= 8;
$lenx = int $lenx;
$tabsa = "\t" x $lenx;
if ($tabsa eq "") {
$tabsa = " ";
$len += 1;
} else {
$len -= $len % 8;
$len += 8 * length $tabsa;
}
} else {
$tabsa = " ";
$len += 1;
}
#
# For the code below, we assume that the attribute lengths
#
if ($len < 32) {
$lena = 0;
} else {
$lena = $len - 32;
}
$name = $2;
$len = length $name;
if ($len < 24) {
$lenx = 24 - $lena - $len;
$lenx += 7; # round up
$lenx /= 8;
$lenx = int $lenx;
$tabsn = "\t" x $lenx;
if ($tabsn eq "") {
$tabsn = " ";
}
} else {
$tabsn = " ";
}
next;
}
#
# Remember if we did this.
#
if (/^END-VENDOR/) {
$begin_vendor = 0;
}
#
# Everything else gets dumped out as-is.
#
}
close FILE;
}
#
# Print out the attributes.
#
foreach $attr (sort {$a <=> $b} keys %file) {
print $name{$attr}, $attr, "\t", $file{$attr}, "\n";
}
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