Data update

Task/Letter-frequency/EasyLang/letter-frequency.easy

@@ -0,0 +1,23 @@
+len d[] 26
+repeat
+   s$ = input
+   until s$ = ""
+   for c$ in strchars s$
+      c = strcode c$
+      if c >= 97 and c <= 122
+         c -= 32
+      .
+      if c >= 65 and c <= 91
+         d[c - 64] += 1
+      .
+   .
+.
+for i to 26
+   write strchar (96 + i) & ": "
+   print d[i]
+.
+input_data
+Open a text file and count the occurrences of each letter.
+Some of these programs count all characters (including
+punctuation), but some only count letters A to Z.
+Other tasks related to string operations: