Extend searchWord rule to allow percent-encoded octets. Add comment that this actually is limited to Unicode letters and numbers: ; searchWord is a sequence of one or more letters, digits, commas, or dots ; this includes Unicode characters from the Unicode categories L or N using UTF-8 and percent-encoding ; the words AND, OR, and NOT are not a valid searchWord ; expressing this in ABNF is somewhat clumsy, so the following rule is overly generous searchWord = 1*( ALPHA / DIGIT / COMMA / "." / "%" HEXDIG HEXDIG )

https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/4.01%20spec/ABNF/odata-abnf-construction-rules.txt?op=diff&rev=1052 https://tools.oasis-open.org/version-control/browse/wsvn/odata/trunk/4.01%20spec/ABNF/odata-abnf-testcases.xml?op=diff&rev=1052 Accepted: https://www.oasis-open.org/committees/download.php/61046/odata-meeting-178_on-20170622-minutes.html