bool InteractiveParser::parse(FILE *file, const std::string *filename, parser::ProgramNode &programStmts, stmtFunction callback) const {
yydebug = DEBUG_PARSER;
yyscan_t scanner;
yylex_init(&scanner);
bool interactive = (stdin == file);
#ifndef OS_WINDOWS
interactive = interactive && (isatty(fileno(file)) == 1);
#endif
yyset_debug(DEBUG_LEXER, scanner);
LexerContext lexerCtx(&programStmts, filename, interactive, callback);
yylex_init_extra(&lexerCtx, &scanner);
lexerCtx.scanner = scanner;
lexerCtx.interactive = interactive;
#ifndef OS_WINDOWS
if(stdin == file){
rl_instream = stdin;
}
#endif
if(interactive){
std::cout << "Welcome to the sugar interactive shell" << std::endl;
std::cout << "Use 'quit' or 'exit' to quit this shell" << std::endl;
}
yy_push_state(lex_state_newline, scanner);
yyset_in( file, scanner );
bool succeed = (yyparse(&lexerCtx) == 0);
yylex_destroy(scanner);
fclose(file);
return succeed && (interactive || !lexerCtx.hasError);
}
unsigned char parse_and_report(const char *filename)
{
yyscan_t scanner;
FILE *f;
unsigned char err = 0;
if(filename == NULL || strcmp(filename, "-") == 0) {
f = stdin;
filename = "stdin";
} else {
f = fopen(filename, "r");
if(!f) {
perror(filename);
return 1;
}
}
yylex_init(&scanner);
yyset_in(f, scanner);
yyset_extra((void *) filename, scanner);
#ifdef DEBUG
yyset_debug(1, scanner);
#endif
if(xml_output) printf("\t<file name=\"%s\">\n", filename);
switch(yyparse(scanner)) {
case 0:
if(!xml_output) printf("%s: valid JSON\n", filename);
break;
case 1:
if(!xml_output) printf("%s: parsing failed\n", filename);
err = 1;
break;
case 2:
fprintf(stderr, "Out of memory\n");
exit(1);
break;
}
if(xml_output) printf("\t</file>\n");
yylex_destroy(scanner);
if(f != stdin) fclose(f);
return err;
}
ParserStatus FidlParser::parse(const std::string& file, bool debug)
{
clear();
//std::cout << "Opening file '" << file << "' for parsing\n";
bool ok = open_and_buffer_file(&open_files_, file);
if (!ok)
{
return first_error_;
}
assert(open_files_.size() == 1);
//std::cout << "Initializing lexer.\n";
yylex_init(&lexer_);
if (debug)
{
yyset_debug(1, lexer_);
yydebug = 1;
}
yyset_extra(this, lexer_);
yyset_in(current_file_ptr(), lexer_);
//std::cout << "Starting parsing of '" << current_file() << "'.\n";
root_node_ = new ast::Root();
yyparse(this, lexer_);
//std::cout << "Done parsing '" << current_file() << "'.\n";
yylex_destroy(lexer_);
return first_error_;
}
