revert strings.mojo

Author: saviorand

lightbug_http/strings.mojo

@@ -33,18 +33,6 @@ struct BytesConstant:
     alias DOUBLE_CRLF = bytes(lineBreak + lineBreak)
 
 
-alias US_ASCII_MAX = 0x7F
-alias ISO_8859_1_MAX = 0xFF
-
-
-fn is_us_ascii_octet(b: UInt8) -> Bool:
-    return b <= US_ASCII_MAX
-
-
-fn is_iso_8859_1_octet(b: UInt8) -> Bool:
-    return b <= ISO_8859_1_MAX
-
-
 fn to_string[T: Writable](value: T) -> String:
     return String.write(value)
 
@@ -58,14 +46,6 @@ fn to_string(b: Span[UInt8]) -> String:
     return String(StringSlice(unsafe_from_utf8=b))
 
 
-fn to_string_rfc9112_safe[origin: Origin](b: Span[UInt8, origin]) -> String:
-    try:
-        var validated_span = validate_message_octets_iso_8859_1(b)
-        return String(StringSlice(unsafe_from_utf8=validated_span))
-    except:
-        return percent_encode_octets(b)
-
-
 fn to_string(owned bytes: Bytes) -> String:
     """Creates a String from the provided List of bytes.
     If you do not transfer ownership of the List, the List will be copied.
@@ -84,55 +64,4 @@ fn find_all(s: String, sub_str: String) -> List[Int]:
     while current_idx > -1:
         match_idxs.append(current_idx)
         current_idx = s.find(sub_str, start=current_idx + 1)
-    return match_idxs^
-
-
-fn percent_encode_octets[origin: Origin](data: Span[UInt8, origin]) -> String:
-    var result = String()
-    
-    for i in range(len(data)):
-        var b = data[i]
-        
-        if is_us_ascii_octet(b) and b >= 0x20 and b != 0x25:  # Printable ASCII except %
-            result += chr(Int(b))
-        else:
-            # Fix hex formatting: ensure proper zero-padding
-            var hex_val = hex(Int(b)).upper()
-            # Remove "0X" prefix if present
-            if hex_val.startswith("0X"):
-                hex_val = hex_val[2:]
-            # Ensure two-digit hex format
-            if len(hex_val) == 1:
-                result += "%0" + hex_val
-            else:
-                result += "%" + hex_val
-    
-    return result
-
-fn validate_message_octets_iso_8859_1[origin: Origin](data: Span[UInt8, origin]) raises -> Span[UInt8, origin]:
-    for i in range(len(data)):
-        var b = data[i]
-        
-        if is_iso_8859_1_octet(b):
-            if b >= 0x80:
-                if b >= 0xC0 and b <= 0xF7:
-                    if i + 1 < len(data) and data[i + 1] == 0x0A:
-                        raise Error(
-                            "."
-                        )
-                elif b >= 0x80 and b <= 0xBF:
-                    if i == 0 or (data[i - 1] < 0xC0):
-                        if i + 1 < len(data) and data[i + 1] == 0x0A:
-                            raise Error(
-                                "."
-                            )
-            continue
-            
-        # This should never happen since is_iso_8859_1_octet covers 0x00-0xFF
-        raise Error(
-            "Invalid octet 0x" + hex(Int(b)) + 
-            " at position " + String(i) + 
-            ". HTTP messages must use encoding superset of US-ASCII."
-        )
-    
-    return data
+    return match_idxs^