ex14

lcthw-remnants-2/.gitignore

@@ -11,3 +11,4 @@ ex10
 ex11
 ex12
 ex13
+ex14

lcthw-remnants-2/ex14.c

@@ -0,0 +1,41 @@
+#include <stdio.h>
+#include <ctype.h>
+
+// forward declarations
+int can_print_it(char ch);
+void print_letters(char arg[]);
+
+void print_arguments(int argc, char *argv[])
+{
+  int i = 0;
+
+  for(i = 0; i < argc; i++) {
+    print_letters(argv[i]);
+  }
+}
+
+void print_letters(char arg[])
+{
+  int i = 0;
+
+  for(i = 0; arg[i] != '\0'; i++) {
+    char ch = arg[i];
+
+    if(can_print_it(ch)) {
+      printf("'%c' == %d ", ch, ch);
+    }
+  }
+
+  printf("\n");
+}
+
+int can_print_it(char ch)
+{
+  return isalpha(ch) || isblank(ch);
+}
+
+int main(int argc, char *argv[])
+{
+  print_arguments(argc, argv);
+  return 0;
+}