Add support for expect (as a form of tcl)

Language name

Expect

URL of example file

https://github.com/gcc-mirror/gcc/blob/master/gcc/testsuite/lib/compat.exp

URL of syntax highlighting grammar

https://github.com/textmate/tcl.tmbundle

Most popular extensions

.exp

Detected language

None

Commentary

Expect is an extension to the Tcl scripting language, used by the dejagnu testing framework, which is in turn used to implement the testsuites for many important GNU toolchain projects, such as GCC and GDB. It can also easily be added to any project that uses automake by simply adding dejagnu to the AM_INIT_AUTOMAKE([]) invocation in configure.ac, and/or the AUTOMAKE_OPTIONS variable in Makefile.am. Note that I'm not sure if it should be treated as its own separate language, or if it would make more sense to just add .exp to the list of supported extensions for tcl, so I'm going to hold back from submitting a PR until we can develop some consensus as to how to answer that question.

Links

• https://en.wikipedia.org/wiki/Expect
• https://core.tcl-lang.org/expect/index
• https://sourceforge.net/projects/expect/
• https://www.nist.gov/services-resources/software/expect