Add 1k divider for numerical output

README.md

@@ -34,6 +34,10 @@ This release was tested against MarIuX.
 
 ## Revision History
 
+### Version 3.0p12 - Mar 20 2019
+- use , as 1k divider for numerical output
+- Niclas Hofmann, `niclas@molgen.mpg.de`
+
 ### Version 3.0p11 - Jan 23 2019
 - remove newline in window title
 - Niclas Hofmann, `niclas@molgen.mpg.de`

version.h

@@ -1 +1 @@
-#define	XDU_VERSION	"3.0p11"
+#define	XDU_VERSION	"3.0p12"

xwin.c

@@ -491,11 +491,46 @@ void xrepaint_noclear()
     repaint(xwa.width, xwa.height);
 }
 
+void readable_float(float number, char* number_label)
+{
+    char number_string[1024];
+    int i, j, length;
+    sprintf(number_string, "%.2f", number);
+    length = (strlen(number_string) - 3) / 4 + strlen(number_string);
+
+    for (i = 0, j = 0; i < length; ++i) {
+        if ((length - 3 - i) % 4 == 0 && i < length - 3) {
+            number_label[i] = ',';
+            continue;
+        }
+        number_label[i] = number_string[j++];
+    }
+    number_label[length] = 0;
+}
+
+void readable_long_long(long long number, char* number_label)
+{
+    char number_string[1024];
+    int i, j, length;
+    sprintf(number_string, "%lld", number);
+    length = (strlen(number_string) - 1) / 3 + strlen(number_string);
+
+    for (i = 0, j = 0; i < length; ++i) {
+        if ((length - i) % 4 == 0 && i != 0) {
+            number_label[i] = ',';
+            continue;
+        }
+        number_label[i] = number_string[j++];
+    }
+    number_label[length] = 0;
+}
+
 void xdrawrect(char* name, long long size, int x, int y, int width, int height)
 {
     int textx,
         texty;
     char label[1024];
+    char number_label[1024];
     XCharStruct overall;
     int ascent,
         descent,
@@ -509,21 +544,23 @@ void xdrawrect(char* name, long long size, int x, int y, int width, int height)
 
     switch (res.showsize) {
     case 1:
-        sprintf(label, "%s (%lldk)", name, size);
+        readable_long_long(size, number_label);
+        sprintf(label, "%s (%sk)", name, number_label);
         name = label;
         break;
     case 2:
-        sprintf(label, "%s (%.2fM)", name, (double)size / (double)1024);
+        readable_float((double)size / (double)1024, number_label);
+        sprintf(label, "%s (%sM)", name, number_label);
         name = label;
         break;
     case 3:
-        sprintf(label, "%s (%.2fG)", name,
-            (double)size / (double)(1024 * 1024));
+        readable_float((double)size / (double)(1024 * 1024), number_label);
+        sprintf(label, "%s (%sG)", name, number_label);
         name = label;
         break;
     case 4:
-        sprintf(label, "%s (%.2fT)", name,
-            (double)size / (double)(1024 * 1024 * 1024));
+        readable_float((double)size / (double)(1024 * 1024 * 1024), number_label);
+        sprintf(label, "%s (%sT)", name, number_label);
         name = label;
         break;
     default: