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// Copyright (c) 2023, Marvin Borner <dev@marvinborner.de>
// SPDX-License-Identifier: MIT
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <term.h>
#include <optimize.h>
#include <log.h>
#include <print.h>
#include <tree.h>
#include <parse.h>
#include <build.h>
// automatically generated using gengetopt
#include "cmdline.h"
#define BUF_SIZE 1024
static char *read_stdin(void)
{
debug("reading from stdin\n");
char buffer[BUF_SIZE];
size_t size = 1;
char *string = malloc(sizeof(char) * BUF_SIZE);
if (!string)
fatal("out of memory!\n");
string[0] = '\0';
while (fgets(buffer, BUF_SIZE, stdin)) {
char *old = string;
size += strlen(buffer);
string = realloc(string, size);
if (!string) {
free(old);
return 0;
}
strcat(string, buffer);
}
if (ferror(stdin)) {
free(string);
fatal("can't read from stdin\n");
}
return string;
}
static char *read_file(FILE *f)
{
fseek(f, 0, SEEK_END);
long fsize = ftell(f);
fseek(f, 0, SEEK_SET);
char *string = malloc(fsize + 1);
if (!string)
fatal("out of memory!\n");
int ret = fread(string, fsize, 1, f);
if (ret != 1) {
free(string);
fatal("can't read file: %s\n", strerror(errno));
}
string[fsize] = 0;
return string;
}
static char *read_path(const char *path)
{
debug("reading from %s\n", path);
FILE *f = fopen(path, "rb");
if (!f)
fatal("can't open file %s: %s\n", path, strerror(errno));
char *string = read_file(f);
fclose(f);
return string;
}
static void test(char *input)
{
debug("parsing as blc\n");
struct term *parsed_1 = parse_blc(input);
free(input);
debug("parsed original blc\n");
debug("merging duplicates\n");
void *all_trees = 0;
struct tree *tree = tree_merge_duplicates(parsed_1, &all_trees);
debug("optimizing tree\n");
struct list *table = optimize_tree(tree, &all_trees);
FILE *temp_bloc = tmpfile();
write_bloc(table, temp_bloc);
tree_destroy(table);
debug("parsing as bloc\n");
char *temp = read_file(temp_bloc);
struct bloc_parsed *bloc = parse_bloc(temp);
fseek(temp_bloc, 0, SEEK_END);
fprintf(stderr, "size bloc: %lu\n", ftell(temp_bloc));
fclose(temp_bloc);
FILE *temp_blc = tmpfile();
write_blc(bloc, temp_blc);
char *input_2 = read_file(temp_blc);
struct term *parsed_2 = parse_blc(input_2);
fseek(temp_blc, 0, SEEK_END);
fprintf(stderr, "size blc: %lu\n", ftell(temp_blc) / 8 + 1);
fclose(temp_blc);
free(input_2);
debug("parsed reconstructed blc\n");
diff_term(parsed_1, parsed_2);
debug("diffed two terms\n");
free_term(parsed_1);
free_term(parsed_2);
debug("done!\n");
}
static void from_blc(char *input, char *output_path)
{
debug("parsing as blc\n");
struct term *parsed = parse_blc(input);
debug("parsed blc\n");
debug("merging duplicates\n");
void *all_trees = 0;
struct tree *tree = tree_merge_duplicates(parsed, &all_trees);
debug("optimizing tree\n");
struct list *table = optimize_tree(tree, &all_trees);
FILE *file = output_path ? fopen(output_path, "wb") : stdout;
write_bloc(table, file);
fclose(file);
tree_destroy(table);
free_term(parsed);
free(input);
debug("done!\n");
}
static void from_bloc(char *input, char *output_path, int dump)
{
debug("parsing as bloc\n");
struct bloc_parsed *bloc = parse_bloc(input);
if (dump)
print_bloc(bloc);
FILE *file = output_path ? fopen(output_path, "wb") : stdout;
write_blc(bloc, file);
fclose(file);
free(input);
free_bloc(bloc);
}
int main(int argc, char **argv)
{
struct gengetopt_args_info args;
if (cmdline_parser(argc, argv, &args))
exit(1);
debug_enable(args.verbose_flag);
char *input;
if (args.input_arg[0] == '-') {
input = read_stdin();
} else {
input = read_path(args.input_arg);
}
if (!input)
return 1;
if (args.test_flag && args.from_blc_flag && !args.from_bloc_flag) {
test(input);
return 0;
}
if (args.from_blc_flag && !args.from_bloc_flag) {
from_blc(input, args.output_arg);
return 0;
}
if (args.from_bloc_flag && !args.from_blc_flag) {
from_bloc(input, args.output_arg, args.dump_flag);
return 0;
}
fatal("invalid options: use --help for information\n");
return 1;
}
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