Item6360: FilterPlugin stops unexpectedly, "eats" content

FilterPlugin works as expected up to the last possible match. After that, all trailing text disappears entirely.

In the example below, the text , IP datagrams on Avian Carriers -- if you can see this, Twiki is no longer eating text that I put here. vanishes after rendering.

The Code

---+++ protocol specs
%STARTSUBST{pattern="RFC ?(\d+)" format="[[http://www.rfc-editor.org/rfc/rfc$1.txt][RFC$1]]"}%
   * RFC 2971, IMAP =ID= Extension (the moral equivalent of =User-Agent=)
   * RFC 3501, the IMAP 4 base spec, replacing RFC 2060 and RFC 1730
   * RFC 5530, IMAP Response Codes, which improves the machine-readable IMAP errors
   * RFC 4315, =UIDPLUS= extension, which replaces RFC 2359
   * RFC 4422, SASL, the "Simple" Authentication and Security Layer, is really a generalization of the IMAP4 =AUTHENTICATE= command.
   * RFC 1149, IP datagrams on Avian Carriers -- if you can see this, Twiki is no longer eating text that I put here.
%STOPSUBST%

Results (screenshot)

Workaround

The workaround is to force one final pattern match after the real data.

---+++ protocol specs
%STARTSUBST{pattern="RFC ?(\d+)" format="[[http://www.rfc-editor.org/rfc/rfc$1.txt][RFC$1]]"}%
   * RFC 2971, IMAP =ID= Extension (the moral equivalent of =User-Agent=)
   * RFC 3501, the IMAP 4 base spec, replacing RFC 2060 and RFC 1730
   * RFC 5530, IMAP Response Codes, which improves the machine-readable IMAP errors
   * RFC 4315, =UIDPLUS= extension, which replaces RFC 2359
   * RFC 4422, SASL, the "Simple" Authentication and Security Layer, is really a generalization of the IMAP4 =AUTHENTICATE= command.
   * RFC 1149, IP datagrams on Avian Carriers -- if you can see this, Twiki is no longer eating text that I put here.
<!-- RFC 0  workaround for SUBST bug -->
%STOPSUBST%

Results (screenshot)

-- TWiki:Main/VickiBrown - 27 Oct 2009