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#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include "ast.h"
#include "eval.h"
#include "lexer.h"
#define VERSION "0.1.0"
extern struct Node* program_root;
int yyparse(void);
static int run_program(void)
{
int status = yyparse();
if (status != 0 || lexer_failed())
status = 1;
else
{
struct Machine machine;
machine_init(&machine);
status = execute(&machine, program_root) == RUN_FAILED;
}
node_free(program_root);
program_root = NULL;
return status;
}
static void print_usage(FILE* stream)
{
(void)fprintf(stream,
"usage: sfinae <file.sfinae>\n"
" sfinae [-v | -h]\n");
}
static void print_help(void)
{
(void)printf("sfinae " VERSION " - substitution failure is not an error\n\n"
"a toy language inspired by c++ template meta programming\n\n");
print_usage(stdout);
(void)printf("\noptions:\n"
" -v, --version print version\n"
" -h, --help print this\n\n"
"by hachem <im@hachem.wtf>\n");
}
static bool is_flag(const char* argument, const char* brief, const char* full)
{
return strcmp(argument, brief) == 0 || strcmp(argument, full) == 0;
}
int main(int argc, char** argv)
{
if (argc != 2)
{
print_usage(stderr);
return 2;
}
if (is_flag(argv[1], "-h", "--help"))
{
print_help();
return 0;
}
if (is_flag(argv[1], "-v", "--version"))
{
(void)printf("sfinae " VERSION "\n");
return 0;
}
yyin = fopen(argv[1], "r");
if (yyin == NULL)
{
(void)fprintf(stderr, "cannot open %s\n", argv[1]);
return 1;
}
int status = run_program();
(void)fclose(yyin);
return status;
}
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