#14481: Shortcode Enhancements
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Reporter: deadowl | Owner:
Type: enhancement | Status: new
Priority: normal | Milestone: Future Release
Component: Shortcodes | Version: 3.0
Severity: normal | Resolution:
Keywords: has-patch needs-unit-tests |
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Comment (by daveagp):
A long time passed since my earlier comment here, so I can tell you what
was my main problem personally, and how I worked around it.
Because I was making a website to teach programming and using shortcodes
to create exercises, it was very important for me that shortcode argument
values (at least quoted ones) would be able to contain any string, not
just a limited set of characters. (I didn't care about shortcode argument
names.)
Problem 1. WordPress will not allow any of the shortcode arg values to
contain
a closing square bracket ] under any circumstances, even if it is quoted.
Problem 2. Each shortcode arg value may either be (a) unquoted but contain
no spaces,
(b) single-quoted but contain no single quotes, or (c) double-quoted
but contain no double quotes. This restriction means you can't pass both
kinds at once. It's a weird restriction because the values are later run
through
stripcslashes anyway.
To get around it, I wrote some modified version of the shortcode
infrastructure that would recognize backslashes as escapes and wait for a
closing quote rather than stopping when it hit a ]. Once I figured out
that this was what I wanted to do, the rest was pretty straightforward:
https://github.com/cemc/cscircles-wp-
content/blob/master/plugins/pybox/sweetcodes.php
Sorry that this file is part of a monolithic plugin but if it would help
for me to explain or extract the part of it that's relevant (mostly the
giant regex) let me know.
If it is likely that these character classes could become kosher for
quoted shortcode arguments, I would be happy to do some work to
incorporate it!
Many of the other improvements sure seem like good ideas, like being able
to self-nest the same shortcode, even though it's never affected me
directly.
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Ticket URL: <https://core.trac.wordpress.org/ticket/14481#comment:30>
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