Correct:
@charset "iso-8859-7"; PASS
Wrong Capitalization:
@CHARSET "iso-8859-7"; PASS
@ChArSeT "iso-8859-7"; PASS
@cHaRsEt "iso-8859-7"; PASS
Wrong Whitespace:
@charset"iso-8859-7"; PASS
@charset "iso-8859-7"; PASS
@charset\9"iso-8859-7"; PASS
@charset\A"iso-8859-7"; PASS
@charset\C"iso-8859-7"; PASS
@charset\D"iso-8859-7"; PASS
@charset "iso-8859-7" ; PASS
@charset "iso-8859-7"; PASS
Wrong Quote character:
@charset 'iso-8859-7'; PASS
@charset "iso-8859-7'; PASS
@charset 'iso-8859-7"; PASS
Wrong Semicolon:
@charset "iso-8859-7" PASS