WeBWorKdocs
Home Current UR courses Visitor page Intro to WeBWorK WeBWorK 2 Twiki WW Community Grant Support & awards Discussion group Problem library Write/modify problems Create & manage course Tutorial on running a course HowTos FAQ WeBWorK2 FAQ Software Download How to Install WW server Feedback Site Map Change preferences Change password	Prev | Next | manpages Description Creates one or more answer evaluators which check string answer(s). Params str is a string representing the correct answer. Options Option key Option value Default filters [filter1, filter2, ...] where each filter is one of:trim_whitespace removes white space from ends of string compress_whitespace removes white space from ends and compresses runs of whitespace to a single space. remove_whitespace removes all white space in string ignore_case ignores case of letters. ignore_order ignores the order in which the letters are entered ['compress_whitespace','ignore_case'] Returns One or more answer evaluators. The second construction creates two answer evaluators. The default behavior ignores case, and treats runs of white spaces as a single space. Examples * ANS( str_cmp(['Good bye']) will accept 'good \ \ BYE', but not 'goodbye' * ANS(str_cmp("Hello", filters => ['ignore_order]) ) will accept 'lloeH', but not 'HEOLL' * ANS(str_cmp("H ello",'remove_whitespace') ) will accept 'Hello' and 'H e l l o'. * ANS(str_cmp(['Tweedle dee', 'Tweedle dum']) ) generates answer evaluators for two successive answer blanks. Notes If you use only one filter you can use the shortcut ANS(str_cmp("Hello",'ignore_order')) for ANS( str_cmp("Hello", filters =>['ignore_order'] ) ) <| Post or View Comments |> Prev | Next | manpages
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