From 7b0205a20a6bfcae8ae9090b3a544bdd2c691a05 Mon Sep 17 00:00:00 2001
From: Trumeet <yuuta@yuuta.moe>
Date: Sun, 21 Nov 2021 18:16:07 -0800
Subject: refactor(expvc/common): move common structs and functions to common.h

---
 Makefile |  1 +
 common.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 expvc.c  | 44 +-------------------------------------------
 3 files changed, 50 insertions(+), 43 deletions(-)
 create mode 100644 common.h

diff --git a/Makefile b/Makefile
index f53dfc5..45abb28 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,5 @@
 .POSIX:
+CFLAGS += -I.
 CFLAGS += -std=c99
 CFLAGS += -Wall
 LDLIBS += -lm
diff --git a/common.h b/common.h
new file mode 100644
index 0000000..30620fd
--- /dev/null
+++ b/common.h
@@ -0,0 +1,48 @@
+#ifndef _COMMON_H
+#define _COMMON_H
+
+#include <string.h>
+#include <stdio.h>
+#include <assert.h>
+#include <math.h>
+
+struct vec3d {
+	double x;
+	double y;
+	double z;
+};
+
+static int vec3d_parse(char *in, struct vec3d *out)
+{
+	int i = 0;
+	char *p = strtok(in, ",");
+	while (p != NULL)
+	{
+		double *ptr;
+		switch (i ++)
+		{
+			case 0:
+				ptr = &out->x;
+				break;
+			case 1:
+				ptr = &out->y;
+				break;
+			case 2:
+				ptr = &out->z;
+				break;
+			default:
+				assert(0);
+				break;
+		}
+		sscanf(p, "%lf", ptr);
+		p = strtok(NULL, ",");
+	}
+	if (i != 3)
+	{
+		fprintf(stderr, "Invalid Vec3D: %s. Example: -1,1,1.\n", in);
+		return 64;
+	}
+	return 0;
+}
+
+#endif /* _COMMON_H */
diff --git a/expvc.c b/expvc.c
index 96e0d14..dc7637f 100644
--- a/expvc.c
+++ b/expvc.c
@@ -4,49 +4,7 @@
  * @1.17.1
  *
  */
-#include <string.h>
-#include <stdio.h>
-#include <assert.h>
-#include <math.h>
-
-struct vec3d {
-	double x;
-	double y;
-	double z;
-};
-
-static int vec3d_parse(char *in, struct vec3d *out)
-{
-	int i = 0;
-	char *p = strtok(in, ",");
-	while (p != NULL)
-	{
-		double *ptr;
-		switch (i ++)
-		{
-			case 0:
-				ptr = &out->x;
-				break;
-			case 1:
-				ptr = &out->y;
-				break;
-			case 2:
-				ptr = &out->z;
-				break;
-			default:
-				assert(0);
-				break;
-		}
-		sscanf(p, "%lf", ptr);
-		p = strtok(NULL, ",");
-	}
-	if (i != 3)
-	{
-		fprintf(stderr, "Invalid Vec3D: %s. Example: -1,1,1.\n", in);
-		return 64;
-	}
-	return 0;
-}
+#include "common.h"
 
 int main(int argc, char **argv)
 {
-- 
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