Add Remove All Whitespace in Brainfuck (#3673)

* Add Remove All Whitespace in Brainfuck * Clean up formatting * Clean up comments
TheRenegadeCoder · Dec 22, 2023 · d38542c · d38542c
1 parent 4a1b565
commit d38542c
Showing 1 changed file with 76 additions and 0 deletions.
diff --git a/archive/b/brainfuck/remove-all-whitespace.bf b/archive/b/brainfuck/remove-all-whitespace.bf
@@ -0,0 +1,76 @@
+[
+    Source for error message text:
+    https://copy.sh/brainfuck/text.html
+]
+; Mem 0 = 1 (indicate no input)
++
+; Mem 1 = input; Loop while input not null
+>,[
+    ; Mem 0 = 0 (indicate input)
+    <[-]
+    ; Mem 2 = input; Mem 3 = input; Mem 1 = 0
+    >>[-]                       ; Mem 2 = 0
+    >[-]                        ; Mem 3 = 0
+    <<[
+        >+                      ; Inc Mem 2
+        >+                      ; Mem Mem 3
+        <<-                     ; Dec Mem 1
+    ]
+    ; Sub 9 from Mem 3; If not zero (not tab)
+    >>---------[
+        ; Dec Mem 3; If not zero (not newline)
+        -[
+            ; Sub 3 from Mem 3; If not zero (not carriage return)
+            ---[
+                ; Sub 19 from Mem 3; If not zero (not space)
+                >+++[           ; Mem 4 = 3
+                    <------     ; Sub 6 from Mem 3
+                    >-          ; Dec Mem 4
+                ]
+                <-              ; Dec Mem 3
+                [
+                    ; Display input (Mem 2) and reset Mem 3
+                    <.
+                    >[-]
+                ]
+            ]
+        ]
+    ]
+    ; Mem 1 = input
+    <<,
+]
+; If no input; display error message
+<[
+    [-]
+    -[--->+<]>.
+    +[--->+<]>+.
+    ++[->+++<]>++.
+    ++++++.
+    --.
+    +++[->+++<]>++.
+    [-->+<]>+++.
+    [-->+++++++<]>.
+    ----.
+    -------.
+    ----.
+    --[--->+<]>--.
+    ++++[->+++<]>.
+    --[--->+<]>-.
+    [-->+++++++<]>.
+    ++.
+    ---.
+    +++++++.
+    [------>+<]>.
+    -----.
+    +.
+    --[--->+<]>-.
+    [->+++<]>+.
+    -[->+++<]>.
+    ---[->++++<]>-.
+    +.
+    --.
+    ---------.
+    +++++.
+    -------.
+    [-]
+]