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, 21 insertions, 19 deletions

diff --git a/src/gas_assembly_generator.h b/src/gas_assembly_generator.h
index 64f861e..c3192b7 100644
--- a/src/gas_assembly_generator.h
+++ b/src/gas_assembly_generator.h
@@ -1,33 +1,35 @@
 /*
-* 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 GAS_ASSEMBLY_GENERATOR_H
 #define GAS_ASSEMBLY_GENERATOR_H
 
 #include "ast.h"
 #include <stdio.h>
 
-typedef struct gas_assembly_generator_t {
+typedef struct gas_assembly_generator_t
+{
   ast_visitor_t super;
   FILE *out;
 } gas_assembly_generator_t;
 
-void gas_assembly_generator_init(gas_assembly_generator_t *, FILE *);
+void
+gas_assembly_generator_init(gas_assembly_generator_t *, FILE *);
 
-void gas_assembly_generator_visit(gas_assembly_generator_t * gen, ast_node_t* ast);
+void
+gas_assembly_generator_visit(gas_assembly_generator_t *gen, ast_node_t *ast);
 
 #endif /* GAS_ASSEMBLY_GENERATOR_H */
-