@startuml partition "require(require_type req_type)" { start switch (req_type?) case (EOF) if (notfound "%%EOF") then (y) :throw syntax_error(EOF_not_found); stop endif if (end of stream) then (y) stop endif if (there is no "**[EOL]**") then (y) stop endif :throw syntax_error(EOF_invalid); stop case (EOL) if (LF || CRLF || CR) then (y) stop endif :throw syntax_error(EOL_not_found); stop case (startxref) :ignore_if_present(any_whitespace_characters_except_EOL); if (there is no "startxref") then (y) :throw syntax_error(startxref_not_found); endif :ignore_if_present(any_whitespace_characters_except_EOL | comment); :require(EOL); endswitch stop } @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art