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#! /usr/bin/perl -w
die if scalar @ARGV != 2;
my $syms = "";
my $init = "";
open HEADER, ">$ARGV[0]";
open IMPL, ">$ARGV[1]";
while (<STDIN>) {
next if (/^\s*$/);
if (/^\s*(\w+)\s*\|([^\|]*)\|\s*(\w+)\s*\|\s*(\w+)?/) {
my $const = $1;
my @types = split ' ', $2;
my $result = $3;
my $funname = $4;
$funname = $const unless defined $funname;
my $formals = "";
my $formals2 = "";
my $args = "";
my $unpack = "";
my $n = 1;
foreach my $type (@types) {
$args .= ", ";
if ($type eq "string") {
# $args .= "(ATerm) ATmakeAppl0(ATmakeAFun((char *) e$n, 0, ATtrue))";
# $type = "const char *";
$type = "ATerm";
$args .= "e$n";
} elsif ($type eq "int") {
$args .= "(ATerm) ATmakeInt(e$n)";
} elsif ($type eq "ATermList" || $type eq "ATermBlob") {
$args .= "(ATerm) e$n";
} else {
$args .= "e$n";
}
$formals .= ", " if $formals ne "";
$formals .= "$type e$n";
$formals2 .= ", ";
$formals2 .= "$type & e$n";
my $m = $n - 1;
if ($type eq "int") {
$unpack .= " e$n = ATgetInt((ATermInt) ATgetArgument(e, $m));\n";
} elsif ($type eq "ATermList") {
$unpack .= " e$n = (ATermList) ATgetArgument(e, $m);\n";
} elsif ($type eq "ATermBlob") {
$unpack .= " e$n = (ATermBlob) ATgetArgument(e, $m);\n";
} else {
$unpack .= " e$n = ATgetArgument(e, $m);\n";
}
$n++;
}
my $arity = scalar @types;
print HEADER "extern AFun sym$funname;\n\n";
print IMPL "AFun sym$funname = 0;\n";
print HEADER "static inline $result make$funname($formals) {\n";
print HEADER " return (ATerm) ATmakeAppl$arity(sym$funname$args);\n";
print HEADER "}\n\n";
print HEADER "#ifdef __cplusplus\n";
print HEADER "static inline bool match$funname(ATerm e$formals2) {\n";
print HEADER " if (ATgetAFun(e) != sym$funname) return false;\n";
print HEADER "$unpack";
print HEADER " return true;\n";
print HEADER "}\n";
print HEADER "#endif\n\n\n";
$init .= " sym$funname = ATmakeAFun(\"$const\", $arity, ATfalse);\n";
$init .= " ATprotectAFun(sym$funname);\n";
}
elsif (/^\s*(\w+)\s*=\s*(.*)$/) {
my $name = $1;
my $value = $2;
print HEADER "extern ATerm $name;\n";
print IMPL "ATerm $name = 0;\n";
$init .= " $name = $value;\n";
}
else {
die "bad line: `$_'";
}
}
print HEADER "void initSyms();\n\n";
print HEADER "static inline ATerm string2ATerm(const char * s) {\n";
print HEADER " return (ATerm) ATmakeAppl0(ATmakeAFun((char *) s, 0, ATtrue));\n";
print HEADER "}\n\n";
print HEADER "static inline const char * aterm2String(ATerm t) {\n";
print HEADER " return (const char *) ATgetName(ATgetAFun(t));\n";
print HEADER "}\n\n";
print IMPL "\n";
print IMPL "void initSyms() {\n";
print IMPL "$init";
print IMPL "}\n";
close HEADER;
close IMPL;
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