whatwg/mimesniff

MIME parsing step for discarding code points after " is unclear

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#64 opened on Apr 10, 2018

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clarificationgood first issuetopic: mime type

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Description

In https://mimesniff.spec.whatwg.org/#parsing-a-mime-type the following step might be clearer if it explicitly said the trailing sequence after " was to be discarded. Might also be better if the example contains a ';' since the step mentions ';'

Current:

Collect a sequence of code points that are not U+003B (;) from input, given position. Example: Given text/html;charset="shift_jis"iso-2022-jp you end up with text/html;charset=shift_jis.

Suggested:

Collect a sequence of code points that are not U+003B (;) from input, given position and discard the result. Example 1: Given text/html;charset="shift_jis"iso-2022-jp you end up with text/html;charset=shift_jis. Example 2: Given text/csv;charset="utf-8" discarded ;header=present you end up with text/csv;charset=utf-8;header= present.

Contributor guide

Research direction
Review the current MIME type parsing algorithm in the spec and propose a clarifying edit to the step about discarding trailing code points after a double quote.
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Domain
documentation
Issue type
Documentation
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
1
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Under 1 hour
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Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
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None
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80