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#!/usr/bin/env perl
#####
# opsymbols.pl
# Andy Hammerlindl 2010/06/01
#
# Extract mapping such as '+' --> SYM_PLUS from camp.l
#####
open(header, ">opsymbols.h") ||
die("Couldn't open opsymbols.h for writing");
print header <<END;
/*****
* This file is automatically generated by opsymbols.pl
* Changes will be overwritten.
*****/
// If the OPSYMBOL macro is not defined for a specific purpose, define it with
// the default purpose of using SYM_PLUS etc. as external pre-translated
// symbols.
#ifndef OPSYMBOL
#define OPSYMBOL(str, name) extern sym::symbol name
#endif
END
sub add {
print header "OPSYMBOL(\"".$_[0]."\", " . $_[1] . ");\n";
}
open(lexer, "camp.l") ||
die("Couldn't open camp.l");
while (<lexer>) {
if (m/^"(\S+)"\s*{\s*DEFSYMBOL\((\w+)\);/) {
add($1, $2);
}
if (m/^(\w+)\s*{\s*DEFSYMBOL\((\w+)\);/) {
add($1, $2);
}
if (m/^\s*EXTRASYMBOL\(\s*(\w+)\s*,\s*(\w+)\s*\)/) {
add($1, $2);
}
}
print header <<END
/* This file is automatically generated. */
END
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