diff --git a/zefie_wtvp_minisrv/WTVLzpf.js b/zefie_wtvp_minisrv/WTVLzpf.js index 4fcb6dc0..08cb95d3 100644 --- a/zefie_wtvp_minisrv/WTVLzpf.js +++ b/zefie_wtvp_minisrv/WTVLzpf.js @@ -40,11 +40,11 @@ class WTVLzpf { * - Bytes that don't change the length of the bit stream: 024:MW_kvy * - The rest will increase the length of bit stream * - * I don't know what process they used to build this dictionary. I assume they + * I don't know what process they used to build this table. I assume they * frequency-scanned a bunch of HTML files they had. * * Using ISO-8859-1 chracter encoding. Didn't seem like they used a different - * dictionary for Japan builds (ISO-2022-JP). + * table for Japan builds (ISO-2022-JP). **/ nomatchEncode = [ /* [FLATTENED HUFFMAN CODE, CODE BIT LENGTH] */ @@ -138,13 +138,13 @@ class WTVLzpf { /** - * This is the dictionary that reduces the size based on repeated patterns in the file. + * This is the table that reduces the size based on repeated patterns in the file. * - * When we find a byte match in the ring buffer we use this dictionary to encode the length of the matched bytes. + * When we find a byte match in the ring buffer we use this table to encode the length of the matched bytes. * * - These are intentionally 32-bit. The leftmost flag bit is 1 in each of these to tell the decoder to use match decoding. * - LZP hash bits are used to encode the position where the matched bytes start. - * - We're allowed to match up to 298 bytes before we can't encode more (we need an entry in this dictionary for each byte more). + * - We're allowed to match up to 298 bytes before we can't encode more (we need an entry in this table for each byte more). * - We can reach for matches 65KB behind the current LZ cursor (65KB is the ring buffer size and highest a 16-bit hash can reach). **/ matchEncode = [ @@ -422,7 +422,7 @@ class WTVLzpf { } if (this.ring_bufer_index == 0xFFFF) { - // We never seen this byte before so we encode it with our Huffman dictionary. + // We never seen this byte before so we encode it with our Huffman table. code_length = this.nomatchEncode[byte][1]; code = this.nomatchEncode[byte][0] << 0x10; } else if (byte == this.ring_buffer[this.ring_bufer_index] && compress_data) { @@ -431,7 +431,7 @@ class WTVLzpf { this.ring_bufer_index = (this.ring_bufer_index + 1) & 0x1FFF; this.compression_mode = 4; } else { - // We've seen these bytes before but the index in the ring buffer doesn't match so we revert to our neat Huffman dictionary + // We've seen these bytes before but the index in the ring buffer doesn't match so we revert to our neat Huffman table // We add 1 flag bit of 0 to account for the fact we've had a hash table hit but no hit in the ring buffer. code_length = this.nomatchEncode[byte][1] + 1; code = this.nomatchEncode[byte][0] << 0x0F;