/usr/share/source-highlight/pc.lang is in libsource-highlight-common 3.1.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | # highlighting for pkg-config files
include "properties.lang"
variable = '\$\{([^[:blank:]]+)\}'
include "number.lang"
include "url.lang"
(string,symbol) = `(^[^:]+)(:)`
|