From 09d436175a0aaa5971e93633fcf2480739ba640f Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Tue, 26 Jul 2016 02:30:58 -0300
Subject: [PATCH] sch2fig/: new option  -t template.fig  to merge template file

---
 sch2fig/fig.c  | 23 ++++++++++++++++++++++-
 sch2fig/fig.h  |  2 +-
 sch2fig/main.c | 21 +++++++++++++++++----
 3 files changed, 40 insertions(+), 6 deletions(-)

diff --git a/sch2fig/fig.c b/sch2fig/fig.c
index b45c9f6..90defc8 100644
--- a/sch2fig/fig.c
+++ b/sch2fig/fig.c
@@ -406,7 +406,7 @@ void fig_text(int x, int y, const char *s, unsigned size,
 /* ----- FIG file header --------------------------------------------------- */
 
 
-void fig_init(void)
+static void fig_header(void)
 {
 	printf("#FIG 3.2\n");
 	printf("Landscape\n");
@@ -418,3 +418,24 @@ void fig_init(void)
 	printf("-2\n");
 	printf("1200 2\n");
 }
+
+
+void fig_init(const char *template)
+{
+	FILE *file;
+	char buf[1000];
+
+	if (!template) {
+		fig_header();
+		return;
+	}
+
+	file = fopen(template, "r");
+	if (!file) {
+		perror(template);
+		exit(1);
+	}
+	while (fgets(buf, sizeof(buf), file))
+		printf("%s", buf);
+	fclose(file);
+}
diff --git a/sch2fig/fig.h b/sch2fig/fig.h
index 646a72b..c90f27f 100644
--- a/sch2fig/fig.h
+++ b/sch2fig/fig.h
@@ -53,6 +53,6 @@ void fig_text(int x, int y, const char *s, unsigned size,
 
 /* inititalization */
 
-void fig_init(void);
+void fig_init(const char *template);
 
 #endif /* !FIG_H */
diff --git a/sch2fig/main.c b/sch2fig/main.c
index 310eaf4..49c7b2c 100644
--- a/sch2fig/main.c
+++ b/sch2fig/main.c
@@ -13,6 +13,7 @@
 
 #include <stdlib.h>
 #include <stdio.h>
+#include <unistd.h>
 #include <string.h>
 
 #include "fig.h"
@@ -57,20 +58,32 @@ static void read_file(const char *name, void *ctx,
 
 static void usage(const char *name)
 {
-	fprintf(stderr, "usage: %s [file.lib ...] file.sch\n", name);
+	fprintf(stderr,
+	    "usage: %s [-t template.fig] [file.lib ...] file.sch\n", name);
 	exit(1);
 }
 
 
 int main(int argc, char **argv)
 {
+	const char *template = NULL;
+	char c;
 	int arg;
 
-	if (argc < 2)
+	while ((c = getopt(argc, argv, "t:")) != EOF)
+		switch (c) {
+		case 't':
+			template = optarg;
+			break;
+		default:
+			usage(*argv);
+		}
+
+	if (argc - optind < 1)
 		usage(*argv);
 
-	fig_init();
-	for (arg = 1; arg != argc; arg++) {
+	fig_init(template);
+	for (arg = optind; arg != argc; arg++) {
 		if (arg == argc - 1) {
 			struct sch_ctx ctx;