style: Use clang-format as formatter and linter tool

We want to keep the code style consistent, this first commit adds a
.clang-format in order to "document" our style code.

This patch also adds a target *linter* to Makefile which will complain
if we have any style issue on test and src dirs.

I have run the follow command to create the .clang-format file:

        $ clang-format -style=mozilla -dump-config > .clang-format

And I also made some adjusts to .clang-format changing the following
properties:

        PointerAlignment: Right
        ColumnLimit:     120

Commands executed to fix the current styling:

        $ find . -name *.h | xargs clang-format -i
        $ find . -name *.c | xargs clang-format -i

Signed-off-by: Johnny Richard <johnny@johnnyrichard.com>

1 files changed, 26 insertions, 22 deletions

diff --git a/src/parser.h b/src/parser.h
index 4b6b5a9..bdf0c5a 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -1,19 +1,19 @@
 /*
-* Copyright (C) 2023 Johnny Richard
-*
-* This program is free software: you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation, either version 3 of the License, or
-* (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
+ * Copyright (C) 2023 Johnny Richard
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 #ifndef PARSER_H
 #define PARSER_H
 
@@ -21,22 +21,26 @@
 #include "lexer.h"
 #include "string_view.h"
 
-typedef struct parser_error_t {
+typedef struct parser_error_t
+{
   token_t token;
-  char message [256];
+  char message[256];
 } parser_error_t;
 
-typedef struct parser_t {
+typedef struct parser_t
+{
   lexer_t *lexer;
   int errors_len;
   // FIXME: replace with vector
   parser_error_t errors[1];
 } parser_t;
 
-void parser_init(parser_t *parser, lexer_t *lexer);
+void
+parser_init(parser_t *parser, lexer_t *lexer);
 
-bool parser_parse_function_declaration(parser_t *parser, ast_node_t *node);
-bool parser_parse_expression(parser_t *parser, ast_node_t *node);
+bool
+parser_parse_function_declaration(parser_t *parser, ast_node_t *node);
+bool
+parser_parse_expression(parser_t *parser, ast_node_t *node);
 
 #endif /* PARSER_H */
-