// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// 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.
// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========

// The fopen mode alphabet: one base letter (r/w/a/x), at most one each
// of +, b, t. parseMode owns the rule; these tables are the vocabulary
// it reads.
export const MODE_CHARS = 'rwaxbt+'

// The legal base-letter spellings: CPython's four plus C fopen's wx
// (exclusive create), which CPython spells as a bare x.
export const MODE_BASES: readonly string[] = ['r', 'w', 'a', 'x', 'wx']
