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#!/usr/bin/env perl
open(S, "<../libcurl/symbols-in-versions") || die;
my %doc;
my %rem;
while(<S>) {
if(/(^CURL[^ \n]*) *(.*)/) {
my ($sym, $rest)=($1, $2);
my @a=split(/ +/, $rest);
$doc{$sym}=$a[0]; # when it was introduced
if($a[2]) {
# this symbol is documented to have been present the last time
# in this release
$rem{$sym}=$a[2];
}
}
}
close(S);
sub age {
my ($ver)=@_;
my @s=split(/\./, $ver);
return $s[0]*10000+$s[1]*100+$s[2];
}
my %used;
open(C, "<$ARGV[0]") || die;
while(<C>) {
if(/\W(CURL[_A-Z0-9v]+)\W/) {
#print "$1\n";
$used{$1}++;
}
}
close(C);
sub sortversions {
my $r = age($doc{$a}) <=> age($doc{$b});
if(!$r) {
$r = $a cmp $b;
}
return $r;
}
my @recent = reverse sort sortversions keys %used;
# the most recent symbol
my $newsym = $recent[0];
# the most recent version
my $newver = $doc{$newsym};
print "The scanned source uses these symbols introduced in $newver:\n";
for my $w (@recent) {
if($doc{$w} eq $newver) {
printf " $w\n";
next;
}
last;
}
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