lower() and upper() now also return the lenght of the processed string.

compiler/res/prog8lib/string.p8

@@ -190,8 +190,8 @@ _found		sty  P8ZP_SCRATCH_B1
         }}
     }
 
-    asmsub lower(uword st @AY) {
-        ; Lowercases the petscii string in-place.
+    asmsub lower(uword st @AY) -> ubyte @Y {
+        ; Lowercases the petscii string in-place. Returns length of the string.
         ; (for efficiency, non-letter characters > 128 will also not be left intact,
         ;  but regular text doesn't usually contain those characters anyway.)
         %asm {{
@@ -213,8 +213,8 @@ _done       rts
         }}
     }
 
-    asmsub upper(uword st @AY) {
-        ; Uppercases the petscii string in-place.
+    asmsub upper(uword st @AY) -> ubyte @Y {
+        ; Uppercases the petscii string in-place. Returns length of the string.
         %asm {{
             sta  P8ZP_SCRATCH_W1
             sty  P8ZP_SCRATCH_W1+1

examples/animals.p8

@@ -91,7 +91,7 @@ main {
         txt.print("is it a ")
         txt.print(animals[animal_number])
         txt.print("? ")
-        txt.input_chars(userinput)
+        void txt.input_chars(userinput)
         if userinput[0] == 'y' {
             txt.print("\n\nsee, i knew it!\n")
             return
@@ -99,18 +99,18 @@ main {
 
         str name = "x"*30
         txt.print("\n\ni give up. what is it? ")
-        txt.input_chars(name)
+        void txt.input_chars(name)
         txt.print("\nwhat yes-no question would best articulate the difference\nbetween a ")
         txt.print(animals[animal_number])
         txt.print(" and a ")
         txt.print(name)
         txt.print("? ")
-        txt.input_chars(userinput)
+        void txt.input_chars(userinput)
         txt.print("\nfor a ")
         txt.print(name)
         txt.print(", what is the answer to that; yes or no? ")
         str answer = "x"*10
-        txt.input_chars(answer)
+        void txt.input_chars(answer)
 
         animals[new_animal_number] = animal_names_ptr
         questions[new_question_number] = questions_ptr

examples/test.p8

@@ -1,11 +1,22 @@
 %import textio
+%import string
 %zeropage basicsafe
 %import test_stack
+%option no_sysinit
 
 main {
 
     sub start() {
-        txt.print("♠♥♣♦π▚●○╳")
+        ubyte xx=existing_entry(1,2)
+    }
+
+    ; TODO FIX COMPILER ERROR ABOUT MISSING RETURN
+
+    sub existing_entry(ubyte hash, uword symbol) -> ubyte {
+        if hash>10
+            return 44
+        else
+            return false
     }
 }