// Lots of things are excluded:

// Github user names:
// TODO(speeling): is ok
// TODO(@speeling): is ok
// TODO(speeling) is ok
// TODO(@speeling) is ok
// NOTE(speeling): is ok
// NOTE(@speeling): is ok
// NOTE(speeling) is ok
// NOTE(@speeling) is ok
// Even just bare @speeling is ok

// Documentation comments:
// @param speeling is ignored here
// @return speeling is ignored here

// Base64:
// ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789/+=
// ABCDEFGHIJKLMN12

// Hex:
// ACEFBCDA   acefbcda
// (ACEFBCDA) (acefbcda)
// AB:CD:EF   ab:cd:ef
// 0xABCD     0xabcd
// 0xD        0xd
// ABCDEFAB-ABCD-ABCD-ABCD-ABCDEFABCDEF
// abcdefab-abcd-abcd-abcd-abcdefabcdef

// Bit fields:
// 00xxxxxx 00XXXXX
// 11yyyyyy 11YYYYY
// AABBAABB

// IPv6:
// FC00::/8
// 2001::abcd/64

// Quoted words:
// "speeling"          'speeling'          *speeling*
// "speeling-is-fun-1" 'speeling-is-fun-1' *speeling-is-fun-1*
// "speeling:is:fun:1" 'speeling:is:fun:1' *speeling:is:fun:1*
// "speeling.is.fun.1" 'speeling.is.fun.1' *speeling.is.fun.1*

// Quoted expressions:
// `std::speeling`
// `namespace::speeling<T>`

// Tuple expressions
// (speeling, phun)
// (speeling,phun)

// Flags:
// %speeling
// -speeling

// RST links:
// `speeling <https://speeling.com>`_
// :ref:`speeling <speeling>`

// RST literals:
// ``speeling``

// Paths:
// /usr/local/speeling
// /dev/speeling/*
// envoy/speeling.h
// envoy/speeling.cc
// envoy/speeling.py
// envoy/speeling.sh

// Ordinals:
// 1st, 2nd, 3rd, 4th, 10th, 11th, 1525th.

// Affixes:
// un-comment
// uncomment
// verb-ing
// verbing