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Subject: [OASIS Issue Tracker] Commented: (CMIS-527) BNF Grammar Quoteissues
[ http://tools.oasis-open.org/issues/browse/CMIS-527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17327#action_17327 ]
Al Brown commented on CMIS-527:
-------------------------------
JIRA Cleanup
> BNF Grammar Quote issues
> ------------------------
>
> Key: CMIS-527
> URL: http://tools.oasis-open.org/issues/browse/CMIS-527
> Project: OASIS Content Management Interoperability Services (CMIS) TC
> Issue Type: Bug
> Components: Domain Model
> Affects Versions: CD04 Substantial Changes
> Reporter: Ryan McVeigh
> Assignee: David Choy
> Fix For: Committee Draft 04
>
>
> CMIS defers to SQL-92 for the description of <character string literal>. SQL-92 (http://www.contrib.andrew.cmu.edu/~shadow/sql/sql1992.txt) defines a character string literal as delimited by <quote>, which is defined as <quote> ::= ', that is, a single-quote character.
> CMIS BNF defines <quote> ::= '"' | "'", that is either a single- or double-quote character.
> - Is CMIS attempting to "override" or "extend" the SQL definition of the <quote> production, or is CMIS's usage unique to where it is explicitly used in the CMIS text.
> - Specifically, does CMIS's <quote> affect the <character string literal> as defined in SQL-92?
> The <text search expression> for the CONTAINS operator is specified to be delimited only by double-quote characters, not the single-quotes prescribed for SQL-92 strings, nor the "either-quotes" used within the expression itself. The <datetime literal> is delimited with "either-quotes", unlike character string literals. The example in section 2.10.2.4.2.3 uses double-quotes, which hints that maybe CMIS is trying to override SQL's definition of <quote>.
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