[pull] master from mozilla:master - #484
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Scanning to the end of the string for every "&" made the entity resolution quadratic. Stopping at the next "&" also fixes a bare ampersand swallowing the reference which follows it.
Compared to regular Objects there's a number of advantages to using Maps: - They support proper iteration. - They have a simple way to check for the existence of data. - They have a simple/efficient way to check the number of elements. If this functionality was added today, I cannot imagine that we'd choose an Object for this data. In the Firefox PDF Viewer sending Maps to the scripting-implementation should be fine, since it uses the browser `Cu.cloneInto` functionality; see https://searchfox.org/firefox-main/source/toolkit/components/pdfjs/content/PdfSandbox.sys.mjs However with QuickJS, used by the GENERIC viewer, all data needs to be stringified and Maps are converted into regular Objects (see also PR 21664). Hence the `objects` property, in the scripting-implementation, is converted back into a Map using the (renamed) `createMap` helper function.
See commit ce4ff55
Exclude "&" from the XML entity names
[api-minor] Convert `getFieldObjects` to return data in a Map
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