Changeset 1328 for libcaca/trunk/srcTweet

Timestamp:

Nov 10, 2006, 4:38:09 PM (14 years ago)

Author:

Sam Hocevar

Message:

• Wrote manual pages for img2irc, cacaplay and cacaserver.

File:

• libcaca/trunk/src/img2irc.c (modified) (3 diffs)

libcaca/trunk/src/img2irc.c

@@ -24 +24 @@
 #include "common-image.h"
 
+static void usage(int argc, char **argv)
+{
+    fprintf(stderr, "Usage: %s <image>\n", argv[0]);
+    fprintf(stderr, "       %s <image> <columns>\n", argv[0]);
+    fprintf(stderr, "       %s [-h|--help]\n", argv[0]);
+}
+
 int main(int argc, char **argv)
 {
@@ -31 +38 @@
     unsigned long int len;
     struct image *i;
-    int cols = 56, lines;
+    int cols, lines;
 
-    if(argc != 2)
+    if(argc < 2 || argc > 3)
     {
         fprintf(stderr, "%s: wrong argument count\n", argv[0]);
+        usage(argc, argv);
         return 1;
+    }
+
+    if(!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help"))
+    {
+        fprintf(stderr, "%s: convert images to IRC file data\n", argv[0]);
+        usage(argc, argv);
+        return 0;
     }
 
@@ -55 +70 @@
 
     /* Assume a 6×10 font */
+    cols = argc == 3 ? atoi(argv[2]) : 0;
+    cols = cols ? cols : 60;
     lines = cols * i->h * 6 / i->w / 10;