Perl: escaped characters not recognized after non-plain variables in double-quoted strings and regexes

[Taylor Venable]

Problem Description:
Using Perl syntax highlighting, escaped characters like \" and \n are not recognized after using a non-special variable in a double-quoted string. An example: $foo = "\"$1\""; this would put the first capture in a regex between double-quotes. In this example, the first \" is recognized as escaped, but the second is not, thus the double-quote mark after the backslash is treated as the end of the string, and gtksourceview renders the rest of the document as an unterminated string, which is incorrect. The same issue occurs in regular expressions where variables are interpolated.

Possible Reason:
It perhaps arises from the difference between a plain-variable and a special-variable in the perl.lang specification file, probably in the "in-pattern" context near line 177 of /usr/share/gtksourceview-2.0/language-specs/perl.lang

Versions:
Ubuntu 8.04.1
gtksourceview 2.2.1-1
gedit 2.22.3-0ubuntu1

[Taylor Venable (taylor-metasyntax)]

I'm sorry, this should be filed under the package gtksourceview2 instead.

[Cesare Tirabassi (norsetto)]

Yes, changing plain-variable to variable in line 177 seem to solve the problem, but it might have other effects. The best would be to report this upstream and see what they think.