From 761fb821d853cd2e457984af2017a54a6485ae8a Mon Sep 17 00:00:00 2001
From: Alex Kotov <kotovalexarian@gmail.com>
Date: Wed, 2 Dec 2020 00:55:16 +0500
Subject: [PATCH] Start working on command line parser

---
 .gitignore                |  1 +
 Makefile.am               |  6 ++++++
 README.md                 |  1 +
 include/Makefile.am       |  1 +
 include/kernaux/cmdline.h | 12 ++++++++++++
 src/cmdline.c             |  3 +++
 tests/test_cmdline.c      |  6 ++++++
 7 files changed, 30 insertions(+)
 create mode 100644 include/kernaux/cmdline.h
 create mode 100644 src/cmdline.c
 create mode 100644 tests/test_cmdline.c

diff --git a/.gitignore b/.gitignore
index b92b3e4..553529e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,6 +32,7 @@
 
 /tests/multiboot2_print1
 /tests/multiboot2_print2
+/tests/test_cmdline
 /tests/test_multiboot2_helpers
 /tests/test_multiboot2_print
 /tests/test_multiboot2_validation
diff --git a/Makefile.am b/Makefile.am
index 7236424..e69efd7 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,6 +5,7 @@ AM_CFLAGS = -std=c99 -Wall -Wextra -I$(top_srcdir)/include
 lib_LIBRARIES = libkernaux.a
 
 TESTS = \
+	tests/test_cmdline \
 	tests/test_multiboot2_helpers \
 	tests/test_multiboot2_print \
 	tests/test_multiboot2_validation \
@@ -17,6 +18,7 @@ noinst_PROGRAMS = \
 	tests/multiboot2_print2
 
 libkernaux_a_SOURCES = \
+	src/cmdline.c \
 	src/console.c \
 	src/multiboot2/helpers.c \
 	src/multiboot2/is_valid.c \
@@ -36,6 +38,10 @@ tests_multiboot2_print2_SOURCES = \
 	$(libkernaux_a_SOURCES) \
 	tests/multiboot2_print2.c
 
+tests_test_cmdline_SOURCES = \
+	$(libkernaux_a_SOURCES) \
+	tests/test_cmdline.c
+
 tests_test_multiboot2_helpers_SOURCES = \
 	$(libkernaux_a_SOURCES) \
 	tests/test_multiboot2_helpers.c
diff --git a/README.md b/README.md
index 0b5ca01..edde0de 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ Table of contents
 API
 ---
 
+* [Simple command line parser](/include/kernaux/cmdline.h) *(work in progress)*
 * [Multiboot 2 (GRUB 2) information parser](/include/kernaux/multiboot2.h)
 * [Serial console](/include/kernaux/console.h)
 * [Page Frame Allocator](/include/kernaux/pfa.h) *(work in progress)*
diff --git a/include/Makefile.am b/include/Makefile.am
index 956e35a..7f41fc3 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -1,5 +1,6 @@
 nobase_include_HEADERS = \
 	kernaux/arch/x86.h \
+	kernaux/cmdline.h \
 	kernaux/console.h \
 	kernaux/multiboot2.h \
 	kernaux/pfa.h \
diff --git a/include/kernaux/cmdline.h b/include/kernaux/cmdline.h
new file mode 100644
index 0000000..fac8892
--- /dev/null
+++ b/include/kernaux/cmdline.h
@@ -0,0 +1,12 @@
+#ifndef KERNAUX_INCLUDED_CMDLINE
+#define KERNAUX_INCLUDED_CMDLINE 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/src/cmdline.c b/src/cmdline.c
new file mode 100644
index 0000000..acf67fc
--- /dev/null
+++ b/src/cmdline.c
@@ -0,0 +1,3 @@
+#include "config.h"
+
+#include <kernaux/cmdline.h>
diff --git a/tests/test_cmdline.c b/tests/test_cmdline.c
new file mode 100644
index 0000000..1a9cc69
--- /dev/null
+++ b/tests/test_cmdline.c
@@ -0,0 +1,6 @@
+#include <kernaux/cmdline.h>
+
+int main()
+{
+    return 0;
+}