template.c: add verbose mode and update usage

src/template.c: Add verbose mode
EXAMPLE_USAGE.md: Update example usage

EXAMPLE_USAGE.md

@@ -1,7 +1,7 @@
 ## Example usage
 
 ```text
-$ echo 't&((t>>7)-t)&t>>8' | python ./bytebeat_compiler.py - -p 44100 && ./build/render_bytebeat
+$ echo 't&((t>>7)-t)&t>>8' | python ./bytebeat_compiler.py - -p 44100 -v && ./build/render_bytebeat
 Compiling
 :: C bytebeat generator runtime unit
 

bytebeat_compiler.py

@@ -80,6 +80,8 @@ if __name__ == "__main__":
 		help="do not insert return statement before the code")
 	parser.add_argument("-q", "--silent", default=False, action="store_true",
 		help="do not output anything during generation")
+	parser.add_argument("-v", "--verbose", default=False, action="store_true",
+		help="output generation progress during generation")
 	args = parser.parse_args()
 
 	bytebeat_contents = read_from_file_or_stdin(args.file).strip()
@@ -117,6 +119,8 @@ if __name__ == "__main__":
 		args.seconds, substitute)
 	substitute = substitute_var("silent_mode",
 		"true" if args.silent else "false", substitute)
+	substitute = substitute_var("verbose_mode",
+		"true" if args.verbose and not args.silent else "false", substitute)
 	rewrite_file(PATHS["substitute"], substitute)
 
 	# Compile by invoking the shell script

src/template.c

@@ -50,6 +50,7 @@ const char* dbgpnt_labels[3] = { "memory allocation",
 
 // global variables
 #define SILENT_MODE `silent_mode`
+#define VERBOSE_MODE `verbose_mode`
 
 // function prototypes
 SAMPLE_TYPE
@@ -97,7 +98,14 @@ main(void)
 	else
 		printf("%d seconds", SECONDS);
 
-	printf("\n\n");
+	printf(
+#if VERBOSE_MODE
+		"\n\n"
+#else
+		"\n"
+#endif
+	);
+
 	fflush(stdout);
 #endif
 
@@ -132,7 +140,7 @@ main(void)
 		buffer[w] = sample_res;
 
 		// 6. log
-#if !SILENT_MODE
+#if VERBOSE_MODE
 		if (w % FREQUENCY_OF_STATUS_REPORTING == 0 ||
 			w >= PRODUCT - 1 /* writing last sample */) {
 			printf(