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[doc] Random notes on ecmascript support in 2024 year
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@ -67,3 +67,50 @@ that there are no SpiderMonkey references outside of
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ECMAScript backend, go ahead - you will just need to write an autoconf
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detection for it and tie it to `src/ecmascript/ecmascript.c`, which should be
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easy. We await your patches eagerly.
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As of 2024
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^^^^^^^^^^
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There are 3 javascript engines you could choose from:
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- Spidermonkey (mozjs128). Passed tests, but segfaults occur, especially
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on shutdown.
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- QuickJS. Tests also passed. For machines with limited resources,
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for example DOS machines. Not all memory is released on shutdown.
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Needs more work.
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- MuJS. For fans of MuJS. Not all tests passed. I don't know
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how to implement missing bits.
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By, tests I mean:
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meson ... -Dtest=true ...
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ninja test
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There as some assertions in these tests. Small subset of DOM HTML is "covered".
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If you have some knowledge of these engines, you can help.
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On some sites ELinks might crash, or slowdown. There is a workaround for this.
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Files allow.txt and disallow.txt.
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In the file ~/.config/elinks/allow.txt one can enter prefixes of urls
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which are allowed. These are urls for text/html pages.
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For example:
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file://
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https://www.example.com/news.php
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All scripts in local pages are allowed, scripts at https://www.example.com/news.php
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are also allowed, but other not. If allow.txt is not empty, urls which prefixes
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do not occur in this file are forbidden.
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In the file ~/.config/elinks/disallow.txt you can also put prefixes, but this time
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disallowed. If allow.txt is empty or nonexistent, all scripts allowed, besides
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pages which prefixes occuring in disallow.txt.
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Sample content of disallow.txt:
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http://
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https://www.example.org/
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All scripts on pages with protocol http are forbidden. The scripts on pages starting
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with https://www.example.com/ are also disallowed. When both files exist, you must
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check it out yourself.
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