1 files changed, 67 insertions, 20 deletions
diff --git a/src/main.c b/src/main.c
index 3cc01a9..b9d64a7 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1,24 +1,71 @@
 #include "../include/parser.h"
 #include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <fcntl.h>
 
-int main() {
-    const char *code = 
-"value1 = 1\n"
-"value2 = true\n"
-"value3 = null\n"
-"value4 = \"hello world\"\n"
-"value5 = [\"hello\", \"world\", 5]\n"
-"value6 = {\"hello\": \"world\", \"value\": 23}\n"
-"value7 = fn () {}\n"
-"value8 = fn (value) {}\n"
-"value9 = {\n"
-"    \"hello\": \"world\",\n"
-"    \"sayHello\": fn() {\n"
-"        \n"
-"    }\n"
-"}\n"
-"\n"
-"str = value9[\"hello\"]\n"
-"value9[\"sayHello\"]()";
-    return tsl_parse(code, strlen(code));
+static char* file_get_content(const char *filepath, size_t *filesize) {
+    struct stat file_stat;
+    int fd = open(filepath, O_RDONLY);
+    char *result = NULL;
+    *filesize = 0;
+    if(fd == -1) {
+        perror(filepath);
+        return NULL;
+    }
+
+    if(fstat(fd, &file_stat) == -1) {
+        perror(filepath);
+        goto cleanup;
+    }
+
+    if(!S_ISREG(file_stat.st_mode)) {
+        fprintf(stderr, "Error: %s is not a file\n", filepath);
+        goto cleanup;
+    }
+
+    *filesize = file_stat.st_size;
+    result = malloc(*filesize + 1);
+    if(!result) {
+        *filesize = 0;
+        fprintf(stderr, "Error: Failed to malloc %lu bytes from file %s\n", *filesize, filepath);
+        goto cleanup;
+    }
+
+    result[*filesize] = '\0';
+    if((size_t)read(fd, result, *filesize) != *filesize) {
+        free(result);
+        *filesize = 0;
+        fprintf(stderr, "Error: Failed to read all data from file %s\n", filepath);
+        goto cleanup;
+    }
+
+    cleanup:
+    close(fd);
+    return result;
+}
+
+static void usage() {
+    puts("usage: tsl [file]");
+}
+
+int main(int argc, char **argv) {
+    int result;
+    size_t filesize;
+    char *file_content;
+
+    if(argc != 2) {
+        usage();
+        return 1;
+    }
+
+    file_content = file_get_content(argv[1], &filesize);
+    if(!file_content)
+        return 1;
+    result = tsl_parse(file_content, filesize);
+    free(file_content); /* Not needed, but it make valgrind happy */
+    return result;
 }