On 4/26/2013 4:55 PM, Tim Li wrote:
Sometimes, it is convenient if I know I am in frontmatter or bodymatter.  when 
desinging a book, we make a new chapter open at a right page and design the 
header to show the chapter title and pagenumber. We have to set the pagenumber 
at the page where a chapter title is located. \definetext  [chapterstart]  
[footer]  [{\hfill\bf\pagenumber\hfill}]\setuphead  [chapter]  
[footer=chapterstart] if this book consists of a frontmatter and a backmatter, 
I have to set the text for the titles in frontmatter and chapters in bodymatter 
like this, for roman pagenumber in frontmatter. 
\startsectionblockenvironment[frontpart]  \definetext    [titlestart]    
[footer]    [{\hfill\bf\romannumerals\pagenumber\hfill}]  \setuphead    [title] 
   [footer=titlestart]\stopsectionblockenvironment 
\startsectionblockenvironment[bodypart]  \definetext    [chapterstart]    
[footer]    [{\hfill\bf\pagenumber\hfill}]  \setuphead    [chapter]     
[footer=chapterstart]\stopsectionblockenvironment  so, is !
there a command to make me know if I am in frontmatter or bodymatter? if so, I can use only one command to achieve that setup \definetext [chapterstart] [footer] [{\hfill\bf\ifinfrontmatter ... \else ... \fi\hfill}] regards, Tim

\startbodymatter

    \doifmodeelse{*bodypart}{YES}{NOP}

\stopbodymatter


if check on \currentsectionblock

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