SVG style ignored after double semicolon - Thangalin via ntg-context

From: Thangalin via ntg-context <ntg-context@ntg.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Cc: Thangalin <thangalin@gmail.com>
Subject: SVG style ignored after double semicolon
Date: Sun, 8 May 2022 01:33:15 -0700	[thread overview]
Message-ID: <CAANrE7p=q2ciAZQtS6UD0f+zv6PVWN2P00JG1-A_-SXKyEPF_A@mail.gmail.com> (raw)

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Hey hey,

The following produces a filled square, rather than an empty one:

\startbuffer[svg]
<svg>
  <rect width="100" height="100"
        style="stroke:rgb(0,0,0);;fill:none" />
</svg>
\stopbuffer

\starttext
  \placefigure{}{\includesvgbuffer[svg][conversion=mp]}
\stoptext

Remove the extra semicolon to get the expected result:

<svg>
  <rect width="100" height="100"
        style="stroke:rgb(0,0,0);fill:none" />
</svg>

It appears that a style immediately following two semicolons is ignored.

The SVG was generated using the following R code:

svg("filename.svg");
plot(rnorm(200));
dev.off()

Arguably, R's SVG routines could be a bit tighter. Can the MP SVG parser
code be relaxed to skip "empty" semicolons?

$ context --version
mtx-context     | current version: 2022.05.02 16:19

Much appreciated.

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