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#include <stdio.h>
#include <string.h>
#include "lex.hpp"
extern FILE* yyin;
::std::string get_dir_path(const ::std::string& input) {
auto pos = input.rfind("/");
if( pos == ::std::string::npos) {
return "";
}
else {
return ::std::string( input, 0, input.rfind("/") + 1 );
}
}
int main(int argc, char *argv[]) {
const char *base_filename;
if(argc < 2 || strcmp(argv[1], "-") == 0) {
yyin = stdin;
base_filename = "-";
}
else {
base_filename = argv[1];
yyin = fopen(argv[1], "r");
if( !yyin ) {
fprintf(stderr, "ERROR: Unable to open '%s': '%s'\n", argv[1], strerror(errno));
return 1;
}
}
yylineno = 1;
yydebug = (getenv("BNFDEBUG") != NULL);
ParserContext context(base_filename);
if( context.filename != "-" ) {
context.base_path = get_dir_path(context.filename);
}
int rv = yyparse(context);
fclose(yyin);
if( rv != 0 ) {
return rv;
}
assert( context.output_module.get() );
auto& mod = *context.output_module;
printf("output module = %p\n", &mod);
for(auto& item : mod.items()) {
Module* opt_submod = dynamic_cast<Module*>(item.get());
if( !opt_submod ) continue;
Module& submod = *opt_submod;
printf("- Module %s\n", submod.name().c_str());
if( ! submod.is_external() ) {
// - inline modules can be ignored.. for now
continue ;
}
::std::string filename;
::std::string base_path;
if( context.filename == "-" ) {
return 1;
}
else if( submod.attrs().has("path") ) {
filename = get_dir_path(context.filename) + submod.attrs().get_first("path").string();
base_path = get_dir_path(filename);
}
else if( context.base_path == "" ) {
return 1;
}
else {
filename = context.base_path + submod.name() + ".rs";
base_path = "";
yyin = fopen( filename.c_str(), "r" );
if( !yyin ) {
printf("> '%s' not found\n", filename.c_str());
base_path = context.base_path + submod.name() + "/";
filename = base_path + "mod.rs";
}
else {
fclose(yyin);
}
}
assert(filename.size() > 0);
yyin = fopen( filename.c_str(), "r" );
if( !yyin ) {
printf("> '%s' not found\n", filename.c_str());
return 1;
}
ParserContext new_context(filename);
int rv = yyparse(new_context);
fclose(yyin);
if( rv != 0 ) {
return rv;
}
submod = ::std::move( *new_context.output_module );
}
return 0;
}
void yyerror(ParserContext& context, const char *s) {
fprintf(stderr, "\x1b[31mERROR: %s:%d: yyerror(%s)\x1b[0m\n", context.filename.c_str(), yylineno, s);
exit(1);
}
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