// Copyright 2026 International Digital Economy Academy
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

///|
/// Parse a string and return the represented boolean value or an error.
#deprecated("use `@string.parse_bool` instead", skip_current_package=true)
pub fn parse_bool(str : StringView) -> Bool raise StrConvError {
  lexscan str with longest {
    re"^(true|TRUE|True|t|T|1)$" => true
    re"^(false|FALSE|False|f|F|0)$" => false
    _ => syntax_err()
  }
}

///|
test "parse_bool" {
  let tests : Array[(String, Result[Bool, String])] = [
    ("", Err(syntax_err_str)),
    ("zutomayo", Err(syntax_err_str)),
    ("0", Ok(false)),
    ("f", Ok(false)),
    ("F", Ok(false)),
    ("FALSE", Ok(false)),
    ("false", Ok(false)),
    ("False", Ok(false)),
    ("1", Ok(true)),
    ("t", Ok(true)),
    ("T", Ok(true)),
    ("TRUE", Ok(true)),
    ("true", Ok(true)),
    ("True", Ok(true)),
  ]
  for t in tests {
    assert_true(
      (Result::Ok(parse_bool(t.0)) catch { StrConvError(err) => Err(err) }) ==
      t.1,
    )
  }
}