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The DPL extension (version 2.3.0) produced a SQL statement which lead to a Database error.The reason may be an internal error of DPL or an error which you made,
 especially when using DPL options like titleregexp.
 Query text is:
 SELECT  DISTINCT `page`.page_namespace AS page_namespace,`page`.page_title AS page_title,`page`.page_id AS page_id, rev_user, rev_user_text, rev_comment, rev_timestamp FROM `revision` AS rev, `page` WHERE 1=1  AND `page`.page_namespace IN (14) AND `page`.page_is_redirect=0 AND `page`.page_id=rev.rev_page AND rev.rev_timestamp=( SELECT MAX(rev_aux.rev_timestamp) FROM `revision` AS rev_aux WHERE rev_aux.rev_page=rev.rev_page ) ORDER BY rev_timestamp DESC LIMIT 5 OFFSET 0
 Error message is:Unknown column 'rev_user' in 'field list' (127.0.0.1)
 
 Internal Documentation:
The DPL extension (version 2.3.0) produced a SQL statement which lead to a Database error.The reason may be an internal error of DPL or an error which you made,
 especially when using DPL options like titleregexp.
 Query text is:
 SELECT  DISTINCT `page`.page_namespace AS page_namespace,`page`.page_title AS page_title,`page`.page_id AS page_id, rev_user, rev_user_text, rev_comment, rev_timestamp FROM `revision` AS rev, `page` WHERE 1=1  AND `page`.page_namespace IN (0) AND `page`.page_is_redirect=0 AND `page`.page_id=rev.rev_page AND rev.rev_timestamp=( SELECT MAX(rev_aux.rev_timestamp) FROM `revision` AS rev_aux WHERE rev_aux.rev_page=rev.rev_page ) ORDER BY rev_timestamp DESC LIMIT 5 OFFSET 0
 Error message is:Unknown column 'rev_user' in 'field list' (127.0.0.1)
 
 API Documentation:
 Ongoing Efforts:
The DPL extension (version 2.3.0) produced a SQL statement which lead to a Database error.The reason may be an internal error of DPL or an error which you made,
 especially when using DPL options like titleregexp.
 Query text is:
 SELECT  DISTINCT `page`.page_namespace AS page_namespace,`page`.page_title AS page_title,`page`.page_id AS page_id, rev_user, rev_user_text, rev_comment, rev_timestamp FROM `revision` AS rev, `page` WHERE 1=1  AND `page`.page_namespace IN (0) AND `page`.page_is_redirect=0 AND `page`.page_id=rev.rev_page AND rev.rev_timestamp=( SELECT MAX(rev_aux.rev_timestamp) FROM `revision` AS rev_aux WHERE rev_aux.rev_page=rev.rev_page ) ORDER BY rev_timestamp DESC LIMIT 5 OFFSET 0
 Error message is:Unknown column 'rev_user' in 'field list' (127.0.0.1)
 
 | 
| Sw.OpenOffice.org | 
Let us describe a "well-formed" SwNodes array of a Writer document in Backus-Naur form.
There are the following node types used as "terminal" symbols:
StartNd = SwNormalStartNode
EndNd = SwEndNode
TextNd = SwTxtNode
GraphicNd = SwGrfNode
OLENd = SwOLENode
TableNd = SwTableNode
SectionNd = SwSectionNode
CellNd = SwTableBoxStartNode
FlyNd = SwFlyStartNode
FootnoteNd = SwFootnoteStartNode
HeaderNd = SwHeaderStartNode
FooterNd = SwFooterStartNode
And now we get:
<Document> ::= <Empty> <Footnote content> <Special content> <Change tracking> <Body content>
<Empty> ::= StartNd EndNd
<Body content> ::= StartNd <Content> EndNd
<Content> ::= TextNd | <'Table> | <Section> | <Content> <Content>
<'Table> ::= TableNd <Cells> EndNd
<Cells> ::= <Cell> | <Cell> <Cells>
<Cell> ::= CellNd <Content> EndNd
<Section> ::= SectionNd <Content> EndNd
<Special content> ::= <Empty> | StartNd <Special> EndNd
<Special> ::= <Special> <Special> | HeaderNd <Content> EndNd | FooterNd <Content> EndNd | FlyNd <Fly content> EndNd
<Fly content> ::= OLENd | GraphicNd | <Content>
<Footnote content> ::= <Empty> | StartNd <Footnotes> EndNd
<Footnotes> ::= <Footnote> | >Footnote> <Footnotes>
<Footnote> ::= FootnoteNd <Content> EndNd
<Change tracking> ::= <Empty> | StartNd <Changes> EndNd
<Changes> ::= <Body content> | <Changes> <Changes>