| // Copyright 2021 The Wuffs Authors. |
| // |
| // 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 |
| // |
| // https://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. |
| |
| // -------- |
| |
| // Quirks are discussed in (/doc/note/quirks.md). |
| // |
| // The base38 encoding of "zlib" is 0x1F_7F79. Left shifting by 10 gives |
| // 0x7DFD_E400. |
| pri const QUIRKS_BASE : base.u32 = 0x7DFD_E400 |
| |
| // -------- |
| |
| // When this quirk is enabled, the decoder speaks just raw deflate, without |
| // zlib's configuration prefix and checksum suffix wrapped around that. |
| // |
| // A zlib.decoder basically becomes a deflate.decoder. This is useful when the |
| // caller might want to choose between the two related-but-slightly-different |
| // formats at run time but would rather not allocate two separate decoders. |
| pub const QUIRK_JUST_RAW_DEFLATE : base.u32 = 0x7DFD_E400 | 0x00 |
| |
| pri const QUIRKS_COUNT : base.u32 = 0x01 |
