From 90492053f28dabb00278517ddc4031b44621b757 Mon Sep 17 00:00:00 2001
From: Kyler <yrea2001@gmail.com>
Date: Mon, 1 Dec 2025 00:09:56 -0700
Subject: [PATCH] Added executing a file

---
 SLS_C/include/sls/file.h |  7 +++++
 SLS_C/include/sls/repl.h |  2 +-
 SLS_C/src/file.c         | 63 ++++++++++++++++++++++++++++++++++++++++
 SLS_C/src/main.c         | 25 +++++++++-------
 SLS_C/src/repl.c         |  6 ++--
 5 files changed, 88 insertions(+), 15 deletions(-)

diff --git a/SLS_C/include/sls/file.h b/SLS_C/include/sls/file.h
index c534f61..5b8ee25 100644
--- a/SLS_C/include/sls/file.h
+++ b/SLS_C/include/sls/file.h
@@ -6,4 +6,11 @@
 #ifndef SLS_FILE_H
 #define SLS_FILE_H
 
+#include "sls/bool.h"
+#include "sls/string.h"
+#include "sls/interpreter.h"
+
+Boolean exec_file(InterpreterState *interpreter_state, SlsStr filename);
+int file(SlsStr filename);
+
 #endif // SLS_FILE_H
diff --git a/SLS_C/include/sls/repl.h b/SLS_C/include/sls/repl.h
index 6f3b889..1d0bcc3 100644
--- a/SLS_C/include/sls/repl.h
+++ b/SLS_C/include/sls/repl.h
@@ -6,6 +6,6 @@
 #ifndef SLS_REPL_H
 #define SLS_REPL_H
 
-int repl(int argc, char *argv[]);
+int repl();
 
 #endif // SLS_REPL_H
diff --git a/SLS_C/src/file.c b/SLS_C/src/file.c
index 7a41f50..092d26d 100644
--- a/SLS_C/src/file.c
+++ b/SLS_C/src/file.c
@@ -3,4 +3,67 @@
 // File
 // November 2025
 
+#include <stdio.h>
+
 #include "sls/file.h"
+#include "sls/bool.h"
+#include "sls/string.h"
+#include "sls/interpreter.h"
+
+Boolean exec_file(InterpreterState *interpreter_state, SlsStr filename) {
+    FILE *file_o = fopen(filename.str, "r");
+    if (file_o == NULL) {
+        printf("Cannot read file: %s\n", filename.str);
+        return FALSE;
+    }
+
+    if (fseek(file_o, 0, SEEK_END)) return FALSE;
+    size_t file_length = ftell(file_o);
+    rewind(file_o);
+
+    LexerInfo lexer_info;
+    SlsStr code = sls_str_new(file_length);
+    for (size_t i = 0; i < file_length; i++) {
+        int character = fgetc(file_o);
+        if (character == EOF) return FALSE;
+        else code.str[i] = (char)character;
+    }
+    init_lexer(&lexer_info, filename, code);
+
+    LexerResult result = lexical_analysis(&lexer_info);
+    if (result.type == SLS_ERROR) {
+        printf("%s\n", result.error.message.str);
+        sls_str_free(&result.error.message);
+        return FALSE;
+    } else {
+        LexerTokenResult *head = result.result;
+        while (head) {
+            if (head->type == SLS_ERROR) {
+                printf("%s\n", head->error.message.str);
+                sls_str_free(&result.error.message);
+                clean_token_result(result.result);
+                return FALSE;
+            } else
+                if (!execute(interpreter_state, head)) {
+                    printf("A runtime error occurred!\n");
+                    break;
+                }
+            head = head->next;
+        }
+        clean_token_result(result.result);
+    }
+    sls_str_free(&code);
+
+    if (fclose(file_o)) return FALSE;
+    else return TRUE;
+}
+
+int file(SlsStr filename) {
+    printf("Executing file: %s\n", filename.str);
+    InterpreterState *interpreter_state = interpreter_create();
+    if (interpreter_state == NULL) return 1;
+    Boolean success = exec_file(interpreter_state, filename);
+    interpreter_delete(interpreter_state);
+    if (success) return 0;
+    else return 1;
+}
diff --git a/SLS_C/src/main.c b/SLS_C/src/main.c
index 84974fc..ea136b7 100644
--- a/SLS_C/src/main.c
+++ b/SLS_C/src/main.c
@@ -9,27 +9,32 @@
 
 #include "sls/meta.h"
 #include "sls/bool.h"
+#include "sls/string.h"
 #include "sls/repl.h"
+#include "sls/file.h"
 
 int main(int argc, char *argv[]) {
     Boolean version = FALSE;
-    Boolean file = FALSE;
     char *filename = NULL;
 
-    (void)file;
-    (void)filename;
-
-    for (int i = 0; i < argc; i++) {
-        if (strcmp(argv[i], "--version") == 0) version = TRUE;
-        if (strcmp(argv[i], "-v") == 0) version = TRUE;
+    if (argc == 2) {
+        if (strcmp(argv[1], "--version") == 0) version = TRUE;
+        else if (strcmp(argv[1], "-v") == 0) version = TRUE;
+        else filename = argv[1];
+    } else if (argc > 2) {
+        printf("To many arguments!");
+        return 1;
     }
 
     if (version) {
         print_version();
         return 0;
-    } else if (file) {
-        return 1;
+    } else if (filename != NULL) {
+        SlsStr sls_filename = sls_str_malloc(filename, strlen(filename));
+        int rv = file(sls_filename);
+        sls_str_free(&sls_filename);
+        return rv;
     } else {
-        return repl(0, NULL);
+        return repl();
     }
 }
diff --git a/SLS_C/src/repl.c b/SLS_C/src/repl.c
index 6e9a1f1..c73bff2 100644
--- a/SLS_C/src/repl.c
+++ b/SLS_C/src/repl.c
@@ -71,10 +71,7 @@ void print_top_of_stack(InterpreterState *interpreter_state) {
     }
 }
 
-int repl(int argc, char *argv[]) {
-    (void)argc;
-    (void)argv;
-
+int repl() {
     print_version();
     printf("===== YREA SLS REPL =====\n");
     printf("Type `#exit` to exit.\n");
@@ -82,6 +79,7 @@ int repl(int argc, char *argv[]) {
 
     LexerInfo lexer_info;
     InterpreterState *interpreter_state = interpreter_create();
+    if (interpreter_state == NULL) return 1;
     char buf[256];
     while (fgets(buf, sizeof(buf), stdin)) {
         size_t len = strlen(buf);