sch2fig/: new option -t template.fig to merge template file

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);
+}

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 */

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();
+	fig_init(template);
-	for (arg = 1; arg != argc; arg++) {
+	for (arg = optind; arg != argc; arg++) {
 		if (arg == argc - 1) {
 			struct sch_ctx ctx;