mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-01 06:35:42 +00:00
56 lines
1.4 KiB
Python
56 lines
1.4 KiB
Python
# This script exists to auto-generate Http2HuffmanOutgoing.h from the table
|
|
# contained in the HPACK spec. It's pretty simple to run:
|
|
# python make_outgoing_tables.py < http2_huffman_table.txt > Http2HuffmanOutgoing.h
|
|
# where huff_outgoing.txt is copy/pasted text from the latest version of the
|
|
# HPACK spec, with all non-relevant lines removed (the most recent version
|
|
# of huff_outgoing.txt also lives in this directory as an example).
|
|
import sys
|
|
|
|
sys.stdout.write('''/*
|
|
* THIS FILE IS AUTO-GENERATED. DO NOT EDIT!
|
|
*/
|
|
#ifndef mozilla__net__Http2HuffmanOutgoing_h
|
|
#define mozilla__net__Http2HuffmanOutgoing_h
|
|
|
|
namespace mozilla {
|
|
namespace net {
|
|
|
|
struct HuffmanOutgoingEntry {
|
|
uint32_t mValue;
|
|
uint8_t mLength;
|
|
};
|
|
|
|
static HuffmanOutgoingEntry HuffmanOutgoing[] = {
|
|
''')
|
|
|
|
entries = []
|
|
for line in sys.stdin:
|
|
line = line.strip()
|
|
obracket = line.rfind('[')
|
|
nbits = int(line[obracket + 1:-1])
|
|
|
|
lastbar = line.rfind('|')
|
|
space = line.find(' ', lastbar)
|
|
encend = line.rfind(' ', 0, obracket)
|
|
|
|
enc = line[space:encend].strip()
|
|
val = int(enc, 16)
|
|
|
|
entries.append({'length': nbits, 'value': val})
|
|
|
|
line = []
|
|
for i, e in enumerate(entries):
|
|
sys.stdout.write(' { 0x%08x, %s }' %
|
|
(e['value'], e['length']))
|
|
if i < (len(entries) - 1):
|
|
sys.stdout.write(',')
|
|
sys.stdout.write('\n')
|
|
|
|
sys.stdout.write('''};
|
|
|
|
} // namespace net
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla__net__Http2HuffmanOutgoing_h
|
|
''')
|