/obj/improper_noun
	name = "test object"

var/obj/improper_noun/T = new()
"The [T] is formatted"          // Outputs as "The the test object is formatted"
"The [T.name] is formatted"     // Outputs as "The test object is formatted"
"\The [T] is formatted"         // Outputs as "The test object is formatted"
"\The [T.name] is formatted"    // Outputs as "The test object is formatted"
"A [T] is formatted"            // Outputs as "A the test object is formatted"
"A [T.name] is formatted"       // Outputs as "A test object is formatted"
"\A [T] is formatted"           // Outputs as "A test object is formatted"
"\A [T.name] is formatted"      // Outputs as "A test object is formatted"

/obj/proper_noun
	name = "Test Object"

var/obj/proper_noun/T = new()
"The [T] is formatted"          // Outputs as "The Test Object is formatted"
"The [T.name] is formatted"     // Outputs as "The Test Object is formatted"
"\The [T] is formatted"         // Outputs as "Test Object is formatted"
"\The [T.name] is formatted"    // Outputs as "Test Object is formatted"
"A [T] is formatted"            // Outputs as "A Test Object is formatted"
"A [T.name] is formatted"       // Outputs as "A Test Object is formatted"
"\A [T] is formatted"           // Outputs as "Test Object is formatted"
"\A [T.name] is formatted"      // Outputs as "Test Object is formatted"

^             == Beginning of the line.

(?!           == Negative lookahead START (If this group matches anything further in the line, discard this result.)
  .*          == 0 or more characters. (e.g. indentation)

  (?:         == Non-capturing group START (Capturing vs non-capturing actually makes no difference here since nothing's being replaced)
    \/{2,}    == 2 or more forward slash '/' characters ('//' or '///' at the start of the line is a comment)
    |         == OR
    \/\*      == One forward slash and an asterisk. (Block comment start)
    |         == OR
    \*        == A single asterisk followed by a space. (Middle of a block comment)
  )           == Non-capturing group END

)             == Negative lookahead END

.*?           == 0 or more characters with a 'lazy' quantifier so that it matches as few as possible.

[^\\]         == Negated character set containing a backslash. (Match any character that is not a '\'. (This filters out "\the [item]" results))

(?:           == Non-capturing group START
  the|a       == Match 'the' or 'a'. (As in "the [item]"/ "a [item]")
)             == Non-capturing group END

 \[.+\]       == Match opening and closing square brackets with 1 or more characters inside them.