isolate lzss chain module

1 files changed, 0 insertions, 46 deletions

diff --git a/src/lzsschain.nim b/src/lzsschain.nim
deleted file mode 100644
index 44200f2..0000000
--- a/src/lzsschain.nim
+++ /dev/null
@@ -1,46 +0,0 @@
-# gzip-like LZSS compressor
-# Copyright (C) 2018  Pacien TRAN-GIRARD
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Affero General Public License as
-# published by the Free Software Foundation, either version 3 of the
-# License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Affero General Public License for more details.
-#
-# You should have received a copy of the GNU Affero General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-import lists, tables, sugar
-import polyfill, integers, lzssnode, huffman/huffmantree
-
-const maxChainByteLength = 32_000 * wordBitLength
-
-type LzssChain* =
-  SinglyLinkedList[LzssNode]
-
-proc lzssChain*(): LzssChain =
-  initSinglyLinkedList[LzssNode]()
-
-proc decode*(lzssChain: LzssChain): seq[uint8] =
-  result = newSeqOfCap[uint8](maxChainByteLength)
-  for node in lzssChain.items:
-    case node.kind:
-      of character:
-        result.add(node.character)
-      of reference:
-        let absolutePos = result.len - node.relativePos
-        result.add(result.toOpenArray(absolutePos, absolutePos + node.length - 1))
-
-proc stats*(lzssChain: LzssChain): tuple[characters: CountTableRef[uint8], lengths, positions: CountTableRef[int]] =
-  result = (newCountTable[uint8](), newCountTable[int](), newCountTable[int]())
-  for node in lzssChain.items:
-    case node.kind:
-      of character:
-        result.characters.inc(node.character)
-      of reference:
-        result.lengths.inc(node.length)
-        result.positions.inc(node.relativePos)