feature: added error diagnostics and the ability to parse multiple files

src/ast/ast.c

@@ -5,7 +5,7 @@
 #include <sys/log.h>
 #include <assert.h>
 
-struct AST_Node_t *AST_new_node(enum AST_SyntaxElement_t kind, const char* value) {
+struct AST_Node_t *AST_new_node(TokenLocation location, enum AST_SyntaxElement_t kind, const char* value) {
   DEBUG("creating new AST node: %d \"%s\"", kind, value);
   assert(kind < AST_ELEMENT_COUNT);
 
@@ -23,6 +23,7 @@ struct AST_Node_t *AST_new_node(enum AST_SyntaxElement_t kind, const char* value
   node->child_count = 0;
   node->kind = kind;
   node->value = value;
+  node->location = location;
 
   return node;
 }
@@ -114,6 +115,14 @@ const char* AST_node_to_string(const struct AST_Node_t* node) {
   return string;
 }
 
+static inline unsigned long int min(unsigned long int a, unsigned long int b) {
+    return a > b ? b : a;
+}
+
+static inline unsigned long int max(unsigned long int a, unsigned long int b) {
+    return a > b ? a : b;
+}
+
 void AST_push_node(struct AST_Node_t *owner, struct AST_Node_t *child) {
   DEBUG("Adding new node %p to %p", child, owner);
   assert(owner != NULL);
@@ -134,6 +143,12 @@ void AST_push_node(struct AST_Node_t *owner, struct AST_Node_t *child) {
     PANIC("failed to allocate children array of AST node");
   }
 
+  owner->location.col_end = max(owner->location.col_end, child->location.col_end);
+  owner->location.line_end = max(owner->location.line_end, child->location.line_end);
+
+  owner->location.col_start = min(owner->location.col_start, child->location.col_start);
+  owner->location.line_start = min(owner->location.line_start, child->location.line_start);
+
   assert(owner->children != NULL);
 
   owner->children[owner->child_count++] = child;

src/ast/ast.h

@@ -3,6 +3,7 @@
 #define _AST_H_
 
 #include <stdio.h>
+#include <io/files.h>
 
 /**
  * @brief The type of a AST node
@@ -94,6 +95,8 @@ struct AST_Node_t {
   // optional value: integer literal, string literal, ...
   const char* value;
 
+  TokenLocation location;
+
   // number of child nodes ownd by this node
   // length of children array
   size_t child_count;
@@ -133,7 +136,7 @@ const char* AST_node_to_string(const struct AST_Node_t* node);
 [[maybe_unused]]
 [[nodiscard("pointer must be freed")]]
 [[gnu::returns_nonnull]]
-struct AST_Node_t *AST_new_node(enum AST_SyntaxElement_t kind, const char* value);
+struct AST_Node_t *AST_new_node(TokenLocation location, enum AST_SyntaxElement_t kind, const char* value);
 
 /**
  * @brief Deallocate this node and all of its children.

src/io/files.c

@@ -0,0 +1,224 @@
+//
+// Created by servostar on 5/30/24.
+//
+
+#include <io/files.h>
+#include <sys/log.h>
+#include <assert.h>
+#include <sys/col.h>
+
+ModuleFile *push_file(ModuleFileStack *stack, const char *path) {
+    assert(stack != NULL);
+
+    // lazy init of heap stack
+    if (stack->files == NULL) {
+        stack->files = g_array_new(FALSE, FALSE, sizeof(ModuleFile));
+    }
+
+    ModuleFile new_file = {
+            .path = path,
+            .handle = NULL
+    };
+
+    g_array_append_val(stack->files, new_file);
+
+    return ((ModuleFile *) stack->files->data) + stack->files->len - 1;
+}
+
+void delete_files(ModuleFileStack *stack) {
+    for (size_t i = 0; i < stack->files->len; i++) {
+        ModuleFile *file = ((ModuleFile *) stack->files->data) + i;
+
+        if (file->handle != NULL) {
+            DEBUG("closing file: %s", file->path);
+            fclose(file->handle);
+        }
+
+    }
+
+    g_array_free(stack->files, TRUE);
+    DEBUG("deleted module file stack");
+}
+
+#define SEEK_BUF_BYTES 256
+
+static inline unsigned long int min(unsigned long int a, unsigned long int b) {
+    return a > b ? b : a;
+}
+
+// behaves like fgets except that it has defined behavior when n == 1
+static void custom_fgets(char *buffer, size_t n, FILE *stream) {
+    if (n == 1) {
+        buffer[0] = (char) fgetc(stream);
+        buffer[1] = 0;
+    } else {
+        fgets(buffer, (int) n, stream);
+    }
+}
+
+void print_diagnostic(ModuleFile *file, TokenLocation *location, Message kind, const char *message) {
+    assert(file->handle != NULL);
+    assert(location != NULL);
+    assert(message != NULL);
+
+    // reset to start
+    rewind(file->handle);
+
+    char *buffer = alloca(SEEK_BUF_BYTES);
+    unsigned long int line_count = 1;
+
+    // seek to first line
+    while (line_count < location->line_start && fgets(buffer, SEEK_BUF_BYTES, file->handle) != NULL) {
+        line_count += strchr(buffer, '\n') != NULL;
+    }
+
+    const char *accent_color = RESET;
+    const char *kind_text = "unknown";
+    switch (kind) {
+        case Info:
+            kind_text = "info";
+            accent_color = CYAN;
+            file->statistics.info_count++;
+            break;
+        case Warning:
+            kind_text = "warning";
+            accent_color = YELLOW;
+            file->statistics.warning_count++;
+            break;
+        case Error:
+            kind_text = "error";
+            accent_color = RED;
+            file->statistics.error_count++;
+            break;
+    }
+
+    char absolute_path[PATH_MAX];
+    realpath(file->path, absolute_path);
+
+    printf("%s%s:%ld:%s %s%s:%s %s\n", BOLD, absolute_path, location->line_start, RESET, accent_color, kind_text, RESET,
+           message);
+
+    size_t lines = location->line_end - location->line_start + 1;
+
+    for (size_t l = 0; l < lines; l++) {
+        printf(" %4ld | ", location->line_start + l);
+
+        size_t limit;
+        size_t chars = 0;
+
+        // print line before token group start
+        limit = min(location->col_start, SEEK_BUF_BYTES);
+        while (limit > 1) {
+            custom_fgets(buffer, (int) limit, file->handle);
+            chars += printf("%s", buffer);
+            limit = min(location->col_start - chars, SEEK_BUF_BYTES);
+
+            if (strchr(buffer, '\n') != NULL) {
+                goto cont;
+            }
+        }
+
+        printf("%s", accent_color);
+
+        chars = 0;
+        limit = min(location->col_end - location->col_start + 1, SEEK_BUF_BYTES);
+        while (limit > 0) {
+            custom_fgets(buffer, (int) limit, file->handle);
+            chars += printf("%s", buffer);
+            limit = min(location->col_end - location->col_start + 1 - chars, SEEK_BUF_BYTES);
+
+            if (strchr(buffer, '\n') != NULL) {
+                goto cont;
+            }
+        }
+
+        printf("%s", RESET);
+
+        // print rest of the line
+        do {
+            custom_fgets(buffer, SEEK_BUF_BYTES, file->handle);
+            printf("%s", buffer);
+        } while (strchr(buffer, '\n') == NULL);
+
+        cont:
+        printf("%s", RESET);
+    }
+
+    printf("      | ");
+    for (size_t i = 1; i < location->col_start; i++) {
+        printf(" ");
+    }
+
+    printf("%s", accent_color);
+    printf("^");
+    for (size_t i = 0; i < location->col_end - location->col_start; i++) {
+        printf("~");
+    }
+
+    printf("%s\n\n", RESET);
+}
+
+TokenLocation new_location(unsigned long int line_start, unsigned long int col_start, unsigned long int line_end,
+                           unsigned long int col_end) {
+    TokenLocation location;
+
+    location.line_start = line_start;
+    location.line_end = line_end;
+    location.col_start = col_start;
+    location.col_end = col_end;
+
+    return location;
+}
+
+void print_file_statistics(ModuleFile *file) {
+    if (file->statistics.info_count + file->statistics.warning_count + file->statistics.error_count < 1) {
+        return;
+    }
+
+    printf("File %s generated ", file->path);
+
+    if (file->statistics.info_count > 0) {
+        printf("%ld notice(s) ", file->statistics.info_count);
+    }
+
+    if (file->statistics.warning_count > 0) {
+        printf("%ld warning(s) ", file->statistics.warning_count);
+    }
+
+    if (file->statistics.error_count > 0) {
+        printf("%ld error(s) ", file->statistics.error_count);
+    }
+
+    printf("\n\n");
+}
+
+void print_unit_statistics(ModuleFileStack *file_stack) {
+    FileDiagnosticStatistics stats;
+    stats.info_count = 0;
+    stats.warning_count = 0;
+    stats.error_count = 0;
+
+    for (size_t i = 0; i < file_stack->files->len; i++) {
+        ModuleFile *file = (ModuleFile *) file_stack->files->data;
+
+        stats.info_count += file->statistics.warning_count;
+        stats.warning_count += file->statistics.warning_count;
+        stats.error_count += file->statistics.error_count;
+    }
+
+    printf("%d files generated ", file_stack->files->len);
+
+    if (stats.info_count > 0) {
+        printf("%ld notice(s) ", stats.info_count);
+    }
+
+    if (stats.warning_count > 0) {
+        printf("%ld warning(s) ", stats.warning_count);
+    }
+
+    if (stats.error_count > 0) {
+        printf("%ld error(s) ", stats.error_count);
+    }
+
+    printf("\n\n");
+}

src/io/files.h

@@ -0,0 +1,77 @@
+//
+// Created by servostar on 5/30/24.
+//
+
+#ifndef GEMSTONE_FILES_H
+#define GEMSTONE_FILES_H
+
+#include <stdio.h>
+#include <glib.h>
+
+typedef struct FileDiagnosticStatistics_t {
+    size_t error_count;
+    size_t warning_count;
+    size_t info_count;
+} FileDiagnosticStatistics;
+
+typedef struct ModuleFile_t {
+    const char *path;
+    FILE *handle;
+    FileDiagnosticStatistics statistics;
+} ModuleFile;
+
+typedef struct ModuleFileStack_t {
+    GArray *files;
+} ModuleFileStack;
+
+typedef enum Message_t {
+    Info,
+    Warning,
+    Error
+} Message;
+
+typedef struct TokenLocation_t {
+    unsigned long int line_start;
+    unsigned long int col_start;
+    unsigned long int line_end;
+    unsigned long int col_end;
+} TokenLocation;
+
+/**
+ * @brief Add a new file to the file stack.
+ * @attention The file handle returned will be invalid
+ * @param stack
+ * @param path
+ * @return A new file module
+ */
+[[gnu::nonnull(1), gnu::nonnull(2)]]
+ModuleFile *push_file(ModuleFileStack *stack, const char *path);
+
+/**
+ * @brief Delete all files in the stack and the stack itself
+ * @param stack
+ */
+[[gnu::nonnull(1)]]
+void delete_files(ModuleFileStack *stack);
+
+/**
+ * Create a new token location
+ * @param line_start
+ * @param col_start
+ * @param line_end
+ * @param col_end
+ * @return
+ */
+TokenLocation new_location(unsigned long int line_start, unsigned long int col_start, unsigned long int line_end,
+                           unsigned long int col_end);
+
+[[gnu::nonnull(1), gnu::nonnull(2)]]
+void print_diagnostic(ModuleFile *file, TokenLocation *location, Message kind, const char *message);
+
+[[gnu::nonnull(1)]]
+void print_file_statistics(ModuleFile *file);
+
+[[gnu::nonnull(1)]]
+void print_unit_statistics(ModuleFileStack *file_stack);
+
+#endif //GEMSTONE_FILES_H

src/lex/util.c

@@ -25,6 +25,16 @@ void lex_init(void) {
   atexit(lex_deinit);
 }
 
+void lex_reset(void) {
+    eof = 0;
+    nRow = 0;
+    nBuffer = 0;
+    lBuffer = 0;
+    nTokenStart = 0;
+    nTokenLength = 0;
+    nTokenNextStart = 0;
+}
+
 void beginToken(char *t) {
   nTokenStart = nTokenNextStart;
   nTokenLength = (int) strlen(t);

src/lex/util.h

@@ -16,6 +16,8 @@ extern char* buffer;
  */
 void lex_init(void);
 
+void lex_reset(void);
+
 /**
  * @brief Begin counting a new token. This will fill the global struct yylloc.
  * @param t the text of the token. Must be null terminated

src/main.c

@@ -4,11 +4,52 @@
 #include <yacc/parser.tab.h>
 #include <sys/col.h>
 #include <lex/util.h>
+#include <io/files.h>
+#include <assert.h>
 
-#define LOG_LEVEL LOG_LEVEL_DEBUG
+extern void yyrestart(FILE *);
 
-extern FILE *yyin;
+[[maybe_unused]]
 AST_NODE_PTR root;
+[[maybe_unused]]
+ModuleFile *current_file;
+
+/**
+ * @brief Compile the specified file into AST
+ * @param ast
+ * @param file
+ * @return EXIT_SUCCESS in case the parsing was success full anything lese if not
+ */
+[[nodiscard("AST may be in invalid state")]]
+[[gnu::nonnull(1), gnu::nonnull(1)]]
+static size_t compile_file_to_ast(AST_NODE_PTR ast, ModuleFile *file) {
+    assert(file->path != NULL);
+    assert(ast != NULL);
+
+    file->handle = fopen(file->path, "r");
+
+    if (file->handle == NULL) {
+        INFO("unable to open file: %s", file->path);
+        return 1;
+    }
+
+    DEBUG("parsing file: %s", file->path);
+    // setup global state
+    root = ast;
+    current_file = file;
+    yyin = file->handle;
+    yyrestart(yyin);
+    lex_reset();
+
+    yyparse();
+
+    // clean up global state
+    // current_file = NULL;
+    root = NULL;
+    yyin = NULL;
+
+    return 0;
+}
 
 /**
  * @brief Log a debug message to inform about beginning exit procedures
@@ -56,28 +97,33 @@ int main(int argc, char *argv[]) {
     setup();
     atexit(close_file);
 
-  // Check for file input as argument
+    ModuleFileStack files;
-  if (2 != argc) {
+    files.files = NULL;
-    INFO("Usage: %s <filename>\n", argv[0]);
+
-    PANIC("No File could be found");
+    for (int i = 1; i < argc; i++) {
+        printf("Compiling file: %s\n\n", argv[i]);
+
+        TokenLocation location = {
+                .line_start = 0,
+                .line_end = 0,
+                .col_start = 0,
+                .col_end = 0
+        };
+        AST_NODE_PTR ast = AST_new_node(location, AST_Module, NULL);
+        ModuleFile *file = push_file(&files, argv[i]);
+
+        if (compile_file_to_ast(ast, file) == EXIT_SUCCESS) {
+            // TODO: parse AST to semantic values
+            // TODO: backend codegen
         }
 
-  // filename as first argument
+        AST_delete_node(ast);
-  char *filename = argv[1];
 
-  FILE *file = fopen(filename, "r");
+        print_file_statistics(file);
-
-  if (NULL == file) {
-    PANIC("File couldn't be opened!");
     }
-  yyin = file;
 
-  root = AST_new_node(AST_Module, NULL);
+    print_unit_statistics(&files);
-  yyparse();
 
-  FILE *output = fopen("test.txt", "w");
+    delete_files(&files);
-  AST_fprint_graphviz(output, root);
-  fclose(output);
-  AST_delete_node(root);
     return 0;
 }

src/sys/log.h

@@ -10,7 +10,7 @@
 #define LOG_LEVEL_INFORMATION   1
 #define LOG_LEVEL_DEBUG         0
 
-#define LOG_LEVEL LOG_LEVEL_DEBUG
+#define LOG_LEVEL LOG_LEVEL_ERROR
 
 #define LOG_STRING_PANIC       "Critical"
 #define LOG_STRING_FATAL       "Fatal"

src/yacc/parser.y

@@ -5,8 +5,9 @@
     #include <sys/log.h>
     #include <ast/ast.h>
     #include <sys/col.h>
+    #include <io/files.h>
     extern int yylineno;
-
+    extern ModuleFile* current_file;
 
     int yyerror(const char*);
 
@@ -16,6 +17,7 @@
     extern int yylex();
     extern AST_NODE_PTR root;
 
+    #define new_loc() new_location(yylloc.first_line, yylloc.first_column, yylloc.last_line, yylloc.last_column)
 }
 
 %union {
@@ -144,11 +146,11 @@ programbody: moduleimport {$$ = $1;}
 
 
 
-expr: ValFloat {$$ = AST_new_node(AST_Float, $1);}
+expr: ValFloat {$$ = AST_new_node(new_loc(), AST_Float, $1);}
-    | ValInt    {$$ = AST_new_node(AST_Int, $1);}
+    | ValInt    {$$ = AST_new_node(new_loc(), AST_Int, $1);}
-    | ValMultistr   {$$ = AST_new_node(AST_String, $1);}
+    | ValMultistr   {$$ = AST_new_node(new_loc(), AST_String, $1);}
-    | ValStr    {$$ = AST_new_node(AST_String, $1);}
+    | ValStr    {$$ = AST_new_node(new_loc(), AST_String, $1);}
-    | Ident     {$$ = AST_new_node(AST_Ident, $1);}
+    | Ident     {$$ = AST_new_node(new_loc(), AST_Ident, $1);}
     | operation {$$ = $1;}
     | boxaccess {$$ = $1;}
     | boxselfaccess{$$ = $1;}
@@ -157,22 +159,22 @@ expr: ValFloat {$$ = AST_new_node(AST_Float, $1);}
 
 exprlist: expr ',' exprlist {AST_push_node($3, $1);
                              $$ = $3;}
-        | expr {AST_NODE_PTR list = AST_new_node(AST_ExprList, NULL);
+        | expr {AST_NODE_PTR list = AST_new_node(new_loc(), AST_ExprList, NULL);
                 AST_push_node(list, $1);
                 $$ = list;};
 
 argumentlist: argumentlist '(' exprlist ')' {AST_push_node($1, $3);
                                              $$ = $1;}
-    | '(' exprlist ')'{AST_NODE_PTR list = AST_new_node(AST_ArgList, NULL);
+    | '(' exprlist ')'{AST_NODE_PTR list = AST_new_node(new_loc(), AST_ArgList, NULL);
                 AST_push_node(list, $2);
                 $$ = list;}
     | argumentlist '(' ')'
-    | '(' ')'{AST_NODE_PTR list = AST_new_node(AST_ArgList, NULL);
+    | '(' ')'{AST_NODE_PTR list = AST_new_node(new_loc(), AST_ArgList, NULL);
               $$ = list;};
 
 
-fundef: KeyFun Ident paramlist '{' statementlist'}' {AST_NODE_PTR fun = AST_new_node(AST_Fun, NULL);
+fundef: KeyFun Ident paramlist '{' statementlist'}' {AST_NODE_PTR fun = AST_new_node(new_loc(), AST_Fun, NULL);
-                                                     AST_NODE_PTR ident = AST_new_node(AST_Ident, $2);
+                                                     AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $2);
                                                      AST_push_node(fun, ident);
                                                      AST_push_node(fun, $3);
                                                      AST_push_node(fun, $5);
@@ -182,66 +184,66 @@ fundef: KeyFun Ident paramlist '{' statementlist'}' {AST_NODE_PTR fun = AST_new_
 paramlist: paramlist '(' params ')' {AST_push_node($1, $3);
                                      $$ = $1;}
          |  paramlist '(' ')'{$$ = $1;}
-         | '(' params ')' {AST_NODE_PTR list = AST_new_node(AST_List, NULL);
+         | '(' params ')' {AST_NODE_PTR list = AST_new_node(new_loc(), AST_List, NULL);
                            AST_push_node(list, $2);
                            $$ = list;}
-         | '(' ')' {$$ = AST_new_node(AST_List, NULL);};
+         | '(' ')' {$$ = AST_new_node(new_loc(), AST_List, NULL);};
 
-params: IOqualifyier paramdecl ',' params {AST_NODE_PTR parameter = AST_new_node(AST_Parameter, NULL);
+params: IOqualifyier paramdecl ',' params {AST_NODE_PTR parameter = AST_new_node(new_loc(), AST_Parameter, NULL);
                                 AST_push_node(parameter, $1);
                                 AST_push_node(parameter, $2);
                                 AST_push_node($4, parameter);
                                 $$ = $4;}
-      | IOqualifyier paramdecl {AST_NODE_PTR list = AST_new_node(AST_ParamList, NULL);
+      | IOqualifyier paramdecl {AST_NODE_PTR list = AST_new_node(new_loc(), AST_ParamList, NULL);
-                                AST_NODE_PTR parameter = AST_new_node(AST_Parameter, NULL);
+                                AST_NODE_PTR parameter = AST_new_node(new_loc(), AST_Parameter, NULL);
                                 AST_push_node(parameter, $1);
                                 AST_push_node(parameter, $2);
                                 AST_push_node(list, parameter);
                                 $$ = list;};
 
-IOqualifyier: KeyIn { AST_NODE_PTR in = AST_new_node(AST_Qualifyier, "in");
+IOqualifyier: KeyIn { AST_NODE_PTR in = AST_new_node(new_loc(), AST_Qualifyier, "in");
-                      AST_NODE_PTR list = AST_new_node(AST_List, NULL);
+                      AST_NODE_PTR list = AST_new_node(new_loc(), AST_List, NULL);
                       AST_push_node(list, in);
                       $$ = list;}
-            | KeyOut{ AST_NODE_PTR out = AST_new_node(AST_Qualifyier, "out");
+            | KeyOut{ AST_NODE_PTR out = AST_new_node(new_loc(), AST_Qualifyier, "out");
-                      AST_NODE_PTR list = AST_new_node(AST_List, NULL);
+                      AST_NODE_PTR list = AST_new_node(new_loc(), AST_List, NULL);
                       AST_push_node(list, out);
                       $$ = list;}
-            | KeyIn KeyOut{ AST_NODE_PTR in = AST_new_node(AST_Qualifyier, "in");
+            | KeyIn KeyOut{ AST_NODE_PTR in = AST_new_node(new_loc(), AST_Qualifyier, "in");
-                      AST_NODE_PTR out = AST_new_node(AST_Qualifyier, "out");
+                      AST_NODE_PTR out = AST_new_node(new_loc(), AST_Qualifyier, "out");
-                      AST_NODE_PTR list = AST_new_node(AST_List, NULL);
+                      AST_NODE_PTR list = AST_new_node(new_loc(), AST_List, NULL);
                       AST_push_node(list, in);
                       AST_push_node(list, out);
                       $$ = list;}
-            | KeyOut KeyIn{ AST_NODE_PTR in = AST_new_node(AST_Qualifyier, "in");
+            | KeyOut KeyIn{ AST_NODE_PTR in = AST_new_node(new_loc(), AST_Qualifyier, "in");
-                      AST_NODE_PTR out = AST_new_node(AST_Qualifyier, "out");
+                      AST_NODE_PTR out = AST_new_node(new_loc(), AST_Qualifyier, "out");
-                      AST_NODE_PTR list = AST_new_node(AST_List, NULL);
+                      AST_NODE_PTR list = AST_new_node(new_loc(), AST_List, NULL);
                       AST_push_node(list, in);
                       AST_push_node(list, out);
                       $$ = list;}
-            | {$$ = AST_new_node(AST_List, NULL);};
+            | {$$ = AST_new_node(new_loc(), AST_List, NULL);};
 
-paramdecl: type ':' Ident { AST_NODE_PTR paramdecl = AST_new_node(AST_ParamDecl, NULL);
+paramdecl: type ':' Ident { AST_NODE_PTR paramdecl = AST_new_node(new_loc(), AST_ParamDecl, NULL);
                             AST_push_node(paramdecl, $1);
-                            AST_NODE_PTR ident = AST_new_node(AST_Ident, $3);
+                            AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $3);
                             AST_push_node(paramdecl, ident);
                             $$ = paramdecl;
     DEBUG("Param-Declaration"); };
 
-box: KeyType KeyBox ':' Ident '{' boxbody '}' {AST_NODE_PTR box = AST_new_node(AST_Box, NULL);
+box: KeyType KeyBox ':' Ident '{' boxbody '}' {AST_NODE_PTR box = AST_new_node(new_loc(), AST_Box, NULL);
-                                       AST_NODE_PTR ident = AST_new_node(AST_Ident, $4);
+                                       AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $4);
                                        AST_push_node(box, ident);
                                        AST_push_node(box, $6);
                                        $$ = box; 
     DEBUG("Box"); }
-   | KeyType KeyBox ':' Ident '{' '}' {AST_NODE_PTR box = AST_new_node(AST_Box, NULL);
+   | KeyType KeyBox ':' Ident '{' '}' {AST_NODE_PTR box = AST_new_node(new_loc(), AST_Box, NULL);
-                                       AST_NODE_PTR ident = AST_new_node(AST_Ident, $4);
+                                       AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $4);
                                        AST_push_node(box, ident);
                                        $$ = box;};
 
 boxbody: boxbody boxcontent {AST_push_node($1, $2);
                              $$ = $1;}
-       | boxcontent {AST_NODE_PTR list = AST_new_node(AST_List, NULL);
+       | boxcontent {AST_NODE_PTR list = AST_new_node(new_loc(), AST_List, NULL);
                      AST_push_node(list, $1);
                      $$ = list;};
 
@@ -249,66 +251,66 @@ boxcontent: decl { $$ = $1;DEBUG("Box decl Content"); }
           | definition { $$ = $1;DEBUG("Box def Content"); }
           | fundef { $$ = $1;DEBUG("Box fun Content"); };
 
-boxselfaccess: KeySelf '.' Ident {AST_NODE_PTR boxselfaccess = AST_new_node(AST_List, NULL);
+boxselfaccess: KeySelf '.' Ident {AST_NODE_PTR boxselfaccess = AST_new_node(new_loc(), AST_List, NULL);
-                                      AST_NODE_PTR self = AST_new_node(AST_Ident, "self");
+                                      AST_NODE_PTR self = AST_new_node(new_loc(), AST_Ident, "self");
                                       AST_push_node(boxselfaccess, self);
-                                      AST_NODE_PTR identlist = AST_new_node(AST_IdentList, NULL);
+                                      AST_NODE_PTR identlist = AST_new_node(new_loc(), AST_IdentList, NULL);
-                                      AST_NODE_PTR ident = AST_new_node(AST_Ident, $3);
+                                      AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $3);
                                       AST_push_node(identlist,ident);
                                       AST_push_node(boxselfaccess, identlist);
                                       $$ = boxselfaccess;}
-             | KeySelf '.' boxaccess {AST_NODE_PTR boxselfaccess = AST_new_node(AST_List, NULL);
+             | KeySelf '.' boxaccess {AST_NODE_PTR boxselfaccess = AST_new_node(new_loc(), AST_List, NULL);
-                                      AST_NODE_PTR self = AST_new_node(AST_Ident, "self");
+                                      AST_NODE_PTR self = AST_new_node(new_loc(), AST_Ident, "self");
                                       AST_push_node(boxselfaccess, self);
                                       AST_push_node(boxselfaccess, $3);
                                       $$ = boxselfaccess;};
 
-boxaccess: Ident '.' Ident {AST_NODE_PTR identlist = AST_new_node(AST_IdentList, NULL);
+boxaccess: Ident '.' Ident {AST_NODE_PTR identlist = AST_new_node(new_loc(), AST_IdentList, NULL);
-                                      AST_NODE_PTR ident1 = AST_new_node(AST_Ident, $1);
+                                      AST_NODE_PTR ident1 = AST_new_node(new_loc(), AST_Ident, $1);
-                                      AST_NODE_PTR ident2 = AST_new_node(AST_Ident, $3);
+                                      AST_NODE_PTR ident2 = AST_new_node(new_loc(), AST_Ident, $3);
                                       AST_push_node(identlist,ident1);
                                       AST_push_node(identlist,ident2);
                                       $$ = identlist;}
-         | Ident '.' boxaccess {AST_NODE_PTR ident = AST_new_node(AST_Ident, $1);
+         | Ident '.' boxaccess {AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $1);
                                       AST_push_node($3,ident);
                                       $$ = $3;};
 
-boxcall: boxaccess argumentlist {AST_NODE_PTR boxcall = AST_new_node(AST_Call, NULL);
+boxcall: boxaccess argumentlist {AST_NODE_PTR boxcall = AST_new_node(new_loc(), AST_Call, NULL);
                                  AST_push_node(boxcall, $1);
                                  AST_push_node(boxcall, $2);
                                  $$ = boxcall;}
-       | boxselfaccess argumentlist {AST_NODE_PTR boxcall = AST_new_node(AST_Call, NULL);
+       | boxselfaccess argumentlist {AST_NODE_PTR boxcall = AST_new_node(new_loc(), AST_Call, NULL);
                                  AST_push_node(boxcall, $1);
                                  AST_push_node(boxcall, $2);
                                  $$ = boxcall;};
                                  
 
-typecast: expr KeyAs type %prec KeyAs  {AST_NODE_PTR cast = AST_new_node(AST_Typecast, NULL);
+typecast: expr KeyAs type %prec KeyAs  {AST_NODE_PTR cast = AST_new_node(new_loc(), AST_Typecast, NULL);
                                         AST_push_node(cast, $1);
                                         AST_push_node(cast, $3);
                                         $$ = cast;
                                          DEBUG("Type-Cast"); };
 
-reinterpretcast: '(' type ')' expr { AST_NODE_PTR cast = AST_new_node(AST_Transmute, NULL);
+reinterpretcast: '(' type ')' expr { AST_NODE_PTR cast = AST_new_node(new_loc(), AST_Transmute, NULL);
                                       AST_push_node(cast, $4);
                                         AST_push_node(cast, $2);
                                         $$ = cast;
                                     DEBUG("Reinterpret-Cast"); };
 
 
-funcall: Ident argumentlist {AST_NODE_PTR funcall = AST_new_node(AST_Call, NULL);
+funcall: Ident argumentlist {AST_NODE_PTR funcall = AST_new_node(new_loc(), AST_Call, NULL);
-                             AST_NODE_PTR ident = AST_new_node(AST_Ident, $1);
+                             AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $1);
                              AST_push_node(funcall, ident);
                              AST_push_node(funcall, $2);
                              $$ = funcall;
                              DEBUG("Function call"); };
 
-moduleimport: KeyImport ValStr {$$ = AST_new_node(AST_Import, $2);
+moduleimport: KeyImport ValStr {$$ = AST_new_node(new_loc(), AST_Import, $2);
                                  DEBUG("Module-Import"); };
 
 statementlist: statementlist statement  {AST_push_node($1, $2);
                                         $$ = $1;}
-    | statement {AST_NODE_PTR list = AST_new_node(AST_StmtList, NULL);
+    | statement {AST_NODE_PTR list = AST_new_node(new_loc(), AST_StmtList, NULL);
                  AST_push_node(list, $1);
         $$ = list;};
 
@@ -320,16 +322,16 @@ statement: assign {$$ = $1;}
         | funcall {$$ = $1;}
         | boxcall{$$ = $1;};
 
-branchif: KeyIf expr '{' statementlist '}' { AST_NODE_PTR branch = AST_new_node(AST_If, NULL);
+branchif: KeyIf expr '{' statementlist '}' { AST_NODE_PTR branch = AST_new_node(new_loc(), AST_If, NULL);
                                             AST_push_node(branch, $2);
                                             AST_push_node(branch, $4);
                                             $$ = branch; };
 
-branchelse: KeyElse '{' statementlist '}' { AST_NODE_PTR branch = AST_new_node(AST_Else, NULL);
+branchelse: KeyElse '{' statementlist '}' { AST_NODE_PTR branch = AST_new_node(new_loc(), AST_Else, NULL);
                                             AST_push_node(branch, $3);
                                             $$ = branch; };
 
-branchelseif: KeyElse KeyIf expr '{' statementlist '}' { AST_NODE_PTR branch = AST_new_node(AST_IfElse, NULL);
+branchelseif: KeyElse KeyIf expr '{' statementlist '}' { AST_NODE_PTR branch = AST_new_node(new_loc(), AST_IfElse, NULL);
                                             AST_push_node(branch, $3);
                                             AST_push_node(branch, $5);
                                             $$ = branch; };
@@ -337,49 +339,49 @@ branchelseif: KeyElse KeyIf expr '{' statementlist '}' { AST_NODE_PTR branch = A
 branchfull:  branchhalf { $$ = $1;};
             |branchhalf branchelse {   AST_push_node($1 , $2);
                                 $$ = $1; }
-branchhalf:  branchif  { AST_NODE_PTR branch = AST_new_node(AST_Stmt, NULL);
+branchhalf:  branchif  { AST_NODE_PTR branch = AST_new_node(new_loc(), AST_Stmt, NULL);
                                 AST_push_node(branch, $1);
                                 $$ = branch; }
         | branchhalf branchelseif { AST_push_node($1 , $2);
                                 $$ = $1; };
 
 
-while: KeyWhile expr '{' statementlist '}' {AST_NODE_PTR whilenode = AST_new_node(AST_While, NULL);
+while: KeyWhile expr '{' statementlist '}' {AST_NODE_PTR whilenode = AST_new_node(new_loc(), AST_While, NULL);
                                 AST_push_node(whilenode, $2);
                                 AST_push_node(whilenode, $4);
                                 $$ = whilenode;};
 
-identlist: Ident ',' identlist {AST_NODE_PTR ident = AST_new_node(AST_Ident, $1);
+identlist: Ident ',' identlist {AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $1);
                                 AST_push_node($3, ident);
                                 $$ = $3;}
-        | Ident {AST_NODE_PTR list = AST_new_node(AST_IdentList, NULL);
+        | Ident {AST_NODE_PTR list = AST_new_node(new_loc(), AST_IdentList, NULL);
-                 AST_NODE_PTR ident = AST_new_node(AST_Ident, $1);
+                 AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $1);
                  AST_push_node(list, ident);
                  $$ = list;};               
 
-decl: type ':' identlist {AST_NODE_PTR decl = AST_new_node(AST_Decl, NULL);
+decl: type ':' identlist {AST_NODE_PTR decl = AST_new_node(new_loc(), AST_Decl, NULL);
                           AST_push_node(decl, $1);
                           AST_push_node(decl, $3);
                           $$ = decl;}
-    | storagequalifier type ':' identlist {AST_NODE_PTR decl = AST_new_node(AST_Decl, NULL);
+    | storagequalifier type ':' identlist {AST_NODE_PTR decl = AST_new_node(new_loc(), AST_Decl, NULL);
                                            AST_push_node(decl, $1);
                                            AST_push_node(decl, $2);
                                            AST_push_node(decl, $4);
                                            $$ = decl;}
 
 
-definition: decl '=' expr { AST_NODE_PTR def = AST_new_node(AST_Def, NULL);
+definition: decl '=' expr { AST_NODE_PTR def = AST_new_node(new_loc(), AST_Def, NULL);
                             AST_push_node(def, $1);
                             AST_push_node(def, $3);
                             $$ = def;
     DEBUG("Definition"); };
 
-storagequalifier: KeyGlobal {$$ = AST_new_node(AST_Storage, "global");}
+storagequalifier: KeyGlobal {$$ = AST_new_node(new_loc(), AST_Storage, "global");}
-        | KeyStatic {$$ = AST_new_node(AST_Storage, "static");}
+        | KeyStatic {$$ = AST_new_node(new_loc(), AST_Storage, "static");}
-        | KeyLocal {$$ = AST_new_node(AST_Storage, "local");};
+        | KeyLocal {$$ = AST_new_node(new_loc(), AST_Storage, "local");};
 
-assign: Ident '=' expr { AST_NODE_PTR assign = AST_new_node(AST_Assign, NULL);
+assign: Ident '=' expr { AST_NODE_PTR assign = AST_new_node(new_loc(), AST_Assign, NULL);
-                         AST_NODE_PTR ident = AST_new_node(AST_Ident, $1);
+                         AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $1);
                          AST_push_node(assign, ident);
                          AST_push_node(assign, $3);
                          $$ = assign;
@@ -388,60 +390,60 @@ assign: Ident '=' expr { AST_NODE_PTR assign = AST_new_node(AST_Assign, NULL);
       | boxaccess '=' expr 
       | boxselfaccess '=' expr ;
 
-sign: KeySigned {$$ = AST_new_node(AST_Sign, "signed");}
+sign: KeySigned {$$ = AST_new_node(new_loc(), AST_Sign, "signed");}
-    | KeyUnsigned{$$ = AST_new_node(AST_Sign, "unsigned");};
+    | KeyUnsigned{$$ = AST_new_node(new_loc(), AST_Sign, "unsigned");};
 
-typedef: KeyType type':' Ident {AST_NODE_PTR typeDef = AST_new_node(AST_Typedef, NULL);
+typedef: KeyType type':' Ident {AST_NODE_PTR typeDef = AST_new_node(new_loc(), AST_Typedef, NULL);
                                 AST_push_node(typeDef, $2);
-                                AST_NODE_PTR ident = AST_new_node(AST_Ident, $4);
+                                AST_NODE_PTR ident = AST_new_node(new_loc(), AST_Ident, $4);
                                 AST_push_node(typeDef, ident);
                                 $$ = typeDef;};
 
-scale: scale KeyShort {AST_NODE_PTR shortnode = AST_new_node(AST_Scale, "short");
+scale: scale KeyShort {AST_NODE_PTR shortnode = AST_new_node(new_loc(), AST_Scale, "short");
                        AST_push_node($1, shortnode);
                        $$ = $1;}
-    | scale KeyHalf {AST_NODE_PTR shortnode = AST_new_node(AST_Scale, "half");
+    | scale KeyHalf {AST_NODE_PTR shortnode = AST_new_node(new_loc(), AST_Scale, "half");
                        AST_push_node($1, shortnode);
                        $$ = $1;}
-    | scale KeyLong {AST_NODE_PTR shortnode = AST_new_node(AST_Scale, "long");
+    | scale KeyLong {AST_NODE_PTR shortnode = AST_new_node(new_loc(), AST_Scale, "long");
                        AST_push_node($1, shortnode);
                        $$ = $1;}
-    | scale KeyDouble {AST_NODE_PTR shortnode = AST_new_node(AST_Scale, "double");
+    | scale KeyDouble {AST_NODE_PTR shortnode = AST_new_node(new_loc(), AST_Scale, "double");
                        AST_push_node($1, shortnode);
                        $$ = $1;}
-    | KeyShort {AST_NODE_PTR scale = AST_new_node(AST_List, NULL);
+    | KeyShort {AST_NODE_PTR scale = AST_new_node(new_loc(), AST_List, NULL);
-                AST_NODE_PTR shortnode = AST_new_node(AST_Scale, "short");
+                AST_NODE_PTR shortnode = AST_new_node(new_loc(), AST_Scale, "short");
                 AST_push_node(scale, shortnode);
                 $$ = scale;}
-    | KeyHalf {AST_NODE_PTR scale = AST_new_node(AST_List, NULL);
+    | KeyHalf {AST_NODE_PTR scale = AST_new_node(new_loc(), AST_List, NULL);
-                AST_NODE_PTR shortnode = AST_new_node(AST_Scale, "half");
+                AST_NODE_PTR shortnode = AST_new_node(new_loc(), AST_Scale, "half");
                 AST_push_node(scale, shortnode);
                 $$ = scale;}
-    | KeyLong {AST_NODE_PTR scale = AST_new_node(AST_List, NULL);
+    | KeyLong {AST_NODE_PTR scale = AST_new_node(new_loc(), AST_List, NULL);
-                AST_NODE_PTR shortnode = AST_new_node(AST_Scale, "long");
+                AST_NODE_PTR shortnode = AST_new_node(new_loc(), AST_Scale, "long");
                 AST_push_node(scale, shortnode);
                 $$ = scale;}
-    | KeyDouble {AST_NODE_PTR scale = AST_new_node(AST_List, NULL);
+    | KeyDouble {AST_NODE_PTR scale = AST_new_node(new_loc(), AST_List, NULL);
-                AST_NODE_PTR shortnode = AST_new_node(AST_Scale, "double");
+                AST_NODE_PTR shortnode = AST_new_node(new_loc(), AST_Scale, "double");
                 AST_push_node(scale, shortnode);
                 $$ = scale;};
 
-typekind: Ident {$$ = AST_new_node(AST_Typekind, $1);}
+typekind: Ident {$$ = AST_new_node(new_loc(), AST_Typekind, $1);}
-    | KeyInt {$$ = AST_new_node(AST_Typekind, "int");}
+    | KeyInt {$$ = AST_new_node(new_loc(), AST_Typekind, "int");}
-    | KeyFloat {$$ = AST_new_node(AST_Typekind, "float");};
+    | KeyFloat {$$ = AST_new_node(new_loc(), AST_Typekind, "float");};
 
-type: typekind {AST_NODE_PTR type = AST_new_node(AST_Type, NULL);
+type: typekind {AST_NODE_PTR type = AST_new_node(new_loc(), AST_Type, NULL);
                 AST_push_node(type, $1);
                 $$ = type;}
-    | scale typekind {AST_NODE_PTR type = AST_new_node(AST_Type, NULL);
+    | scale typekind {AST_NODE_PTR type = AST_new_node(new_loc(), AST_Type, NULL);
                 AST_push_node(type, $1);
                 AST_push_node(type, $2);
                 $$ = type;}
-    | sign typekind {AST_NODE_PTR type = AST_new_node(AST_Type, NULL);
+    | sign typekind {AST_NODE_PTR type = AST_new_node(new_loc(), AST_Type, NULL);
                 AST_push_node(type, $1);
                 AST_push_node(type, $2);
                 $$ = type;}
-    | sign scale typekind {AST_NODE_PTR type = AST_new_node(AST_Type, NULL);
+    | sign scale typekind {AST_NODE_PTR type = AST_new_node(new_loc(), AST_Type, NULL);
                 AST_push_node(type, $1);
                 AST_push_node(type, $2);
                 AST_push_node(type, $3);
@@ -452,136 +454,74 @@ operation: oparith {$$ = $1;}
     | opbool {$$ = $1;}
     | opbit {$$ = $1;};
 
-oparith: expr '+' expr {AST_NODE_PTR add = AST_new_node(AST_Add, NULL);
+oparith: expr '+' expr {AST_NODE_PTR add = AST_new_node(new_loc(), AST_Add, NULL);
                         AST_push_node(add, $1);
                         AST_push_node(add, $3);
                         $$ = add;}
-    | expr '-' expr    {AST_NODE_PTR subtract = AST_new_node(AST_Sub, NULL);
+    | expr '-' expr    {AST_NODE_PTR subtract = AST_new_node(new_loc(), AST_Sub, NULL);
                         AST_push_node(subtract, $1);
                         AST_push_node(subtract, $3);
                         $$ = subtract;}
-    | expr '*' expr     {AST_NODE_PTR mul = AST_new_node(AST_Mul, NULL);
+    | expr '*' expr     {AST_NODE_PTR mul = AST_new_node(new_loc(), AST_Mul, NULL);
                         AST_push_node(mul, $1);
                         AST_push_node(mul, $3);
                         $$ = mul;}
-    | expr '/' expr     {AST_NODE_PTR div = AST_new_node(AST_Div, NULL);
+    | expr '/' expr     {AST_NODE_PTR div = AST_new_node(new_loc(), AST_Div, NULL);
                         AST_push_node(div, $1);
                         AST_push_node(div, $3);
                         $$ = div;}
-    | '-' expr %prec '*'{AST_NODE_PTR negator = AST_new_node(AST_Negate, NULL);
+    | '-' expr %prec '*'{AST_NODE_PTR negator = AST_new_node(new_loc(), AST_Negate, NULL);
                         AST_push_node(negator, $2);
                         $$ = negator;};
 
-oplogic: expr OpEquals expr {AST_NODE_PTR equals = AST_new_node(AST_Eq, NULL);
+oplogic: expr OpEquals expr {AST_NODE_PTR equals = AST_new_node(new_loc(), AST_Eq, NULL);
                              AST_push_node(equals, $1);
                              AST_push_node(equals, $3);
                              $$ = equals;}
-    | expr '<' expr {AST_NODE_PTR less = AST_new_node(AST_Less, NULL);
+    | expr '<' expr {AST_NODE_PTR less = AST_new_node(new_loc(), AST_Less, NULL);
                              AST_push_node(less, $1);
                              AST_push_node(less, $3);
                              $$ = less;}
-    | expr '>' expr{AST_NODE_PTR greater = AST_new_node(AST_Greater, NULL);
+    | expr '>' expr{AST_NODE_PTR greater = AST_new_node(new_loc(), AST_Greater, NULL);
                              AST_push_node(greater, $1);
                              AST_push_node(greater, $3);
                              $$ = greater;};
 
-opbool: expr OpAnd expr {AST_NODE_PTR and = AST_new_node(AST_BoolAnd, NULL);
+opbool: expr OpAnd expr {AST_NODE_PTR and = AST_new_node(new_loc(), AST_BoolAnd, NULL);
                              AST_push_node(and, $1);
                              AST_push_node(and, $3);
                              $$ = and;}
-    | expr OpOr expr{AST_NODE_PTR or = AST_new_node(AST_BoolOr, NULL);
+    | expr OpOr expr{AST_NODE_PTR or = AST_new_node(new_loc(), AST_BoolOr, NULL);
                              AST_push_node(or, $1);
                              AST_push_node(or, $3);
                              $$ = or;}
-    | expr OpXor expr{AST_NODE_PTR xor = AST_new_node(AST_BoolXor, NULL);
+    | expr OpXor expr{AST_NODE_PTR xor = AST_new_node(new_loc(), AST_BoolXor, NULL);
                              AST_push_node(xor, $1);
                              AST_push_node(xor, $3);
                              $$ = xor;}
-    | OpNot expr %prec OpAnd{AST_NODE_PTR not = AST_new_node(AST_BoolNot, NULL);
+    | OpNot expr %prec OpAnd{AST_NODE_PTR not = AST_new_node(new_loc(), AST_BoolNot, NULL);
                              AST_push_node(not, $2);
                              $$ = not;};
 
-opbit: expr OpBitand expr {AST_NODE_PTR and = AST_new_node(AST_BitAnd, NULL);
+opbit: expr OpBitand expr {AST_NODE_PTR and = AST_new_node(new_loc(), AST_BitAnd, NULL);
                              AST_push_node(and, $1);
                              AST_push_node(and, $3);
                              $$ = and;}
-    | expr OpBitor expr{AST_NODE_PTR or = AST_new_node(AST_BitOr, NULL);
+    | expr OpBitor expr{AST_NODE_PTR or = AST_new_node(new_loc(), AST_BitOr, NULL);
                              AST_push_node(or, $1);
                              AST_push_node(or, $3);
                              $$ = or;}
-    | expr OpBitxor expr{AST_NODE_PTR xor = AST_new_node(AST_BitXor, NULL);
+    | expr OpBitxor expr{AST_NODE_PTR xor = AST_new_node(new_loc(), AST_BitXor, NULL);
                              AST_push_node(xor, $1);
                              AST_push_node(xor, $3);
                              $$ = xor;}
-    | OpBitnot expr %prec OpBitand{AST_NODE_PTR not = AST_new_node(AST_BitNot, NULL);
+    | OpBitnot expr %prec OpBitand{AST_NODE_PTR not = AST_new_node(new_loc(), AST_BitNot, NULL);
                              AST_push_node(not, $2);
                              $$ = not;};
 %%
 
- 
-const char* ERROR = "error";
-const char* WARNING = "warning";
-const char* NOTE = "note";
-
-int print_message(const char* kind, const char* message) {
-    // number of characters written
-    int char_count = 0;
-    // highlight to use
-    char* HIGHLIGHT = CYAN;
-
-    // convert message kind into color
-    if (kind == ERROR) {
-        HIGHLIGHT = RED;
-    } else if (kind == WARNING) {
-        HIGHLIGHT = YELLOW;
-    }
-
-    // print message
-    char_count += printf("%sfilename:%d:%d%s:%s%s %s: %s%s\n", BOLD, yylloc.first_line, yylloc.first_column, RESET, HIGHLIGHT, BOLD, kind, RESET, message);
-    
-    // print line in which error occurred
-    
-    char_count += printf(" %4d | ", yylloc.first_line);
-
-    for (int i = 0; i < yylloc.first_column - 1; i++) {
-        if (buffer[i] == '\n') {
-            break;
-        }
-        printf("%c", buffer[i]);
-    }
-
-    char_count += printf("%s%s", BOLD, HIGHLIGHT);
-
-    for (int i = yylloc.first_column - 1; i < yylloc.last_column; i++) {
-        if (buffer[i] == '\n') {
-            break;
-        }
-        char_count += printf("%c", buffer[i]);
-    }
-
-    char_count += printf("%s", RESET);
-
-    for (int i = yylloc.last_column; buffer[i] != '\0' && buffer[i] != '\n'; i++) {
-        printf("%c", buffer[i]);
-    }
-
-    char_count += printf("\n      | ");
-
-    for (int i = 0; i < yylloc.first_column - 1; i++) {
-        char_count += printf(" ");
-    }
-
-    char_count += printf("%s^", HIGHLIGHT);
-
-    for (int i = 0; i < yylloc.last_column - yylloc.first_column; i++) {
-        printf("~");
-    }
-    
-    char_count += printf("%s\n\n", RESET);
-
-    return char_count;
-}
-
 int yyerror(const char *s) {
-    return print_message(ERROR, s);
+    TokenLocation location = new_loc();
+    print_diagnostic(current_file, &location, Error, s);
+    return 0;
 }