|
From: SourceForge.net <no...@so...> - 2004-01-18 23:31:39
|
Feature Requests item #809789, was opened at 2003-09-20 11:49 Message generated for change (Comment added) made by monks You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=439482&aid=809789&group_id=44411 Category: None Group: None Status: Open Priority: 5 Submitted By: Ken Monks (monks) Assigned to: Nobody/Anonymous (nobody) Summary: validation using user-defined string types Initial Comment: In some situations, it is desirable to have students input their answer in a notation that cannot be parsed as a valid Maple expression. In these situations it would be useful to be able to specify a Maple type other than "string" at the c> flag in a question, but still prevent AiM from trying to parse the student's answer. For example, when asking a student for an answer that is type RepeatingDecimal (see the Decimal package) we must specify the Maple type as string to prevent AiM from trying to parse it. What would be better is to specify it something like c> string,RepeatingDecimal which would tell AiM to not parse the student's answer string, but to check if that answer string matches the Maple type RepeatingDecimal when validating it. ---------------------------------------------------------------------- >Comment By: Ken Monks (monks) Date: 2004-01-18 18:31 Message: Logged In: YES user_id=766386 I have implemented this with the syntax String(mapletype), where mapletype is a Maple type. However, this is only a partial quickie solution. A better solution would be to be able to specify the VProc at the c> flag in a manner similar to what is done for the MProc at the s> flag, i.e. to allow syntax of the form: c> [validationproc,parserproc] where validation proc is either a proc or a Maple type that validates the students rawanswer as string, and parserproc parses the rawanswer (as a string) into a Maple expression, it would solve all of the problems related to this topic and we wouldn't need these workarounds. ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=439482&aid=809789&group_id=44411 |
