Added xstr macro to help versioning

emcconville · Jun 20, 2015 · 8d0bff1 · 8d0bff1
1 parent c3f7f04
commit 8d0bff1
Showing 1 changed file with 8 additions and 6 deletions.
diff --git a/cif/main.m b/cif/main.m
@@ -573,9 +573,11 @@ void listFilterArgumentsFor(NSString * filterName)
 
 #pragma mark - Application
 
+#define xstr(s) str(s)
+#define str(s) #s
 
 #ifndef CIF_VERSION
-#define CIF_VERSION "1.0"
+#define CIF_VERSION 1.0
 #endif
 
 #ifndef CIF_RELEASE_DATE
@@ -593,9 +595,9 @@ void listFilterArgumentsFor(NSString * filterName)
 
 void version() {
     fprintf(stdout, _version,
-            CIF_VERSION,
-            CIF_RELEASE_DATE,
-            CIF_RELEASE_URL);
+            xstr(CIF_VERSION),
+            xstr(CIF_RELEASE_DATE),
+            xstr(CIF_RELEASE_URL));
 }
 
 static const char * _usage = ""
@@ -612,7 +614,7 @@ void usage() {
 };
 
 
-static const char * _help = ""
+static const char * _help = "\n"
 "Commands\n"
 "--------\n"
 "\n"
@@ -624,7 +626,7 @@ void usage() {
 "list <CIFilter> Display description of Core Image filter, and list all input\n"
 "                parameters. Each parameter hints expected format, and default\n"
 "                value.\n"
-"version, -v     Print current version header."
+"version, -v     Print current version header.\n"
 "\n"
 "Types\n"
 "-----\n"