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48 Commits

Author SHA1 Message Date
dirkf
6ed3433828 [jsinterp] Add short-cut evaluation for common expression 
* special handling for (d%e.length+e.length)%e.length speeds up ~6%
 2023-05-11 21:02:01 +01:00
dirkf
a85a875fef [jsinterp] Handle NaN in bitwise operators 
* also add _NaN
* also pull function naming from yt-dlp
 2023-05-11 20:59:30 +01:00
dirkf
211cbfd5d4 [jsinterp] Minimally handle arithmetic operator precedence 
Resolves #32066
 2023-04-21 14:04:30 +01:00
dirkf
0402710227 [jsinterp] Fix regexp parsing and .replace[All] method 
* For performance, make regexp object instantiation lazy
 * Other small performance improvements
 2023-03-07 01:24:21 +00:00
pukkandan
3e92c60fcd [jsinterp] Handle Date at epoch 0 
See yt-dlp/yt_dlp#6400
 2023-03-03 15:02:15 +00:00
dirkf
57802e632f [jsinterp] Fix dict comprehension for Py2.6 
Resolves #31600
 2023-02-19 13:48:58 +00:00
dirkf
cd987e6fca [jsinterp] Nits 2023-02-12 22:16:00 +00:00
dirkf
295736c9cb [jsinterp] Improve parsing 
* support subset `... else if ...`
* support `while`
* add `RegExp` class
* generalise `new` support
* limited more debug strings
* matching test changes
 2023-02-02 16:31:49 +00:00
pukkandan
14ef89a8da Support if statements 
Fix for yt-dlp/yt_dlp#6131
Closes #31509
 2023-02-02 13:12:46 +00:00
dirkf
6e2626f092
[JSInterp] Improve separation logic 
Based on 0468a3b325
 2022-10-11 05:58:10 +01:00
pukkandan
7009bb9f31 [jsinterp] Workaround operator associativity issue 
* temporary fix for player 5a3b6271 [1]

1. https://github.com/yt-dlp/yt-dlp/issues/4635#issuecomment-1235384480
 2022-09-03 00:53:56 +01:00
dirkf
55c823634d [jsinterp] Handle new YT players 113ca41c, c57c113c 
* add NaN
* allow any white-space character for `after_op`
* align with yt-dlp f26af78a8ac11d9d617ed31ea5282cfaa5bcbcfa (charcodeAt and bitwise overflow)
* allow escaping in regex, fixing player c57c113c
 2022-09-01 10:57:12 +01:00
dirkf
4c6fba3765 [jsinterp] Improve try/catch/finally support 2022-08-26 08:51:17 +01:00
dirkf
d619dd712f [jsinterp] Fix bug in operator precedence 
* from 164b03c486
* added tests
 2022-08-25 12:16:10 +01:00
dirkf
46b8ae2f52 [jsinterp] Clean up and pull yt-dlp style 
* add compat_re_Pattern
* improve compat_collections_chain_map
* use class JS_Undefined
* remove unused code
 2022-08-19 15:34:33 +01:00
dirkf
538ec65ba7
[jsinterp] Handle regexp literals and throw/catch execution (#31182) 
* based on f6ca640b12, thanks pukkandan
* adds parse support for regexp flags
 2022-08-19 11:45:04 +01:00
dirkf
b0a60ce203
[jsinterp] Improve JS language support (#31175) 
* operator ??
* operator ?.
* operator **
* accurate operator functions
* `undefined` handling
* object literals {a: 1, "b": expr}
* more tests for weird JS comparisons: see https://github.com/ytdl-org/youtube-dl/issues/31173#issuecomment-1217854397.
 2022-08-17 14:22:02 +01:00
dirkf
d231b56717
[jsinterp] Overhaul JSInterp to handle new YT players 4c3f79c5, 324f67b9 (#31170) 
* back-port from yt-dlp 8f53dc44a0cc1c2d98c35740b9293462c080f5d0, thanks pukkandan
* also support void, improve <</>> precedence, improve expressions in comma-list
* add more tests
 2022-08-14 18:45:45 +01:00
dirkf
6ca7b77696 Refactor JSInterpreter._separate 
yt-dlp/yt-dlp/@06dfe0a, improve _MATCHING_PARENS
 2022-01-30 00:05:54 +00:00
dirkf
9d142109f4 Back-port test_youtube_signature.py from yt-dlp and fix JSInterp accordingly 2022-01-30 00:05:54 +00:00
dirkf
1ca673bd98 Fix splice to handle float 
Needed for new youtube js player f1ca6900
Add 57dbe8077f (diff-729b57caa8d006426f6a8960c061f519a8b6658682284015e069745af52ffb07)
 2022-01-30 00:05:54 +00:00
df
e1eae16b56 Handle default in switch better 
Add a1fc7ca074
Thanks coletdjnz
 2022-01-30 00:05:54 +00:00
df
96f87aaa3b Back-port JS interpreter upgrade from yt-dlp PR #1437 2022-01-30 00:05:54 +00:00
Sergey M․
0e2d626ddd
[jsinterp] Fix typo and cleanup regexes (closes #13134) 2017-05-18 22:57:38 +07:00
Sergey M․
7769f83701
[jsinterp] Add support for quoted names and indexers (closes #13123, closes #13130) 2017-05-18 22:18:33 +07:00
Sergey M․
d1aeacd9bf
[youtube] Fix extraction (closes #11663, #11664) 2017-01-10 21:25:29 +07:00
Kacper Michajłow
189935f159 [jsinterp] Fix function calls without arguments. 2016-11-11 15:36:57 +01:00
Sergey M․
b46eabecd3
[jsinterp] Relax JS function regex (Closes #9863) 2016-06-23 09:41:34 +07:00
Philipp Hagemeister
1f749b6658 Revert "[jsinterp] Avoid double key lookup for setting new key" 
This reverts commit 7c05097633.
 2016-06-20 13:29:13 +02:00
Lucas Moura
7c05097633
[jsinterp] Avoid double key lookup for setting new key 
In order to add a new key to both __objects and __functions dicts on jsinterp.py, it is
necessary to first verify if a key was present and if not, create the key and
assign it to a value.

However, this can be done with a single step using dict setdefault method.
 2016-06-19 03:29:45 +07:00
Sergey M․
b95779be21 [jsinterp] Extend function regex (Closes #7900, closes #7901) 2015-12-18 18:57:49 +06:00
Philipp Hagemeister
4c7d816dd7 [jsinterp] Adapt to updated YouTube code generation (Fixes #7623, fixes #7624, fixes #7625, fixes #7626) 2015-11-24 07:45:38 +01:00
Yen Chi Hsuan
ff29bf81f8 [jsinterp] Support alternative function definition form 2015-11-10 12:54:02 +08:00
Philipp Hagemeister
3eff81fbf7 [jsinterp] Disable comment support 
We need a proper lexer to be able to understand YouTube's code, which contains /* inside of strings.
For now it's sufficient to just disable comment support altogether.

Fixes #4976, fixes #4979, fixes #4980, fixes #4981, fixes #4982.
Closes #4977.
 2015-02-18 10:47:42 +01:00
Philipp Hagemeister
8cfb6efe6f [jsinterp] Correct div command 2015-02-02 01:49:32 +01:00
Philipp Hagemeister
9e3f19919a [jsinterp] Beef up and add tests 
In preparation for #4822, extend jsinterp by a lot. (We may even have to/want to write a proper interpreter with actual parsing)
 2015-02-01 22:38:29 +01:00
tinybug
85b9275517 Update jsinterp.py 
http://s.ytimg.com/yts/jsbin/html5player-zh_HK-vfl1NK6PR/html5player.js 
fix raise ExtractorError
 2014-11-21 17:09:22 +08:00
Philipp Hagemeister
4cb71e9b6a [jsinterp] Fix slice 2014-07-25 07:04:39 +02:00
Philipp Hagemeister
16f8e9df8a [jsinterp] Allow uppercase object names 2014-07-25 06:54:52 +02:00
Philipp Hagemeister
892e3192fb [jsinterp] Do not expect dot in simple function call 2014-07-24 11:33:42 +02:00
Jaime Marquínez Ferrándiz
ebe832dc37 [jsinterp] 'reverse' modifies the array in place (fixes #3334) 2014-07-24 11:08:31 +02:00
Philipp Hagemeister
825abb8175 [jsinterp] Implement splice and general improvement 
I still get 403s on YouTube though.
 2014-07-24 10:41:14 +02:00
Philipp Hagemeister
9f43890bcd [jsinterp] Allow digits in function names 2014-07-23 02:13:48 +02:00
Jaime Marquínez Ferrándiz
ad25aee245 [youtube & jsinterp] Fix signature extraction (fixes #3255) 
Some functions are defined now inside an object, the jsinterp will search its definition if the variable is not defined in the local namespace.
 2014-07-15 22:46:39 +02:00
Philipp Hagemeister
fc040bfd05 [jsinterp] Prevent mis-recognitions of local functions 2014-07-11 10:44:56 +02:00
Philipp Hagemeister
61989fb5e9 [jsinterp] Remove superfluous u 2014-07-11 10:40:02 +02:00
Philipp Hagemeister
77ffa95701 [jsinterp] Better error messages 2014-03-30 07:15:14 +02:00
Philipp Hagemeister
2b25cb5d76 [youtube] Move JavaScript interpreter into its own module 2014-03-30 07:02:58 +02:00