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From: stolfi (Jorge Stolfi)
Newsgroups: comp.lang.modula3
Subject: Re: Formatter doesn't flush trailing blanks
Message-ID: <9102151046.AA20813@jumbo.pa.dec.com>
Date: 15 Feb 91 10:46:15 GMT
Lines: 18
In-Reply-To: Message of Thu, 14 Feb 91 13:02:25 -0500
    from Norman Ramsey <nr@Princeton.EDU>
    <9102141802.AA11439@cs.Princeton.EDU>
To: m3
X-Folder-Carbon: sent


    > [Norman Ramsey:] If the last character of a text is a blank, it
    > doesn't get flushed correctly by Formatter.Flush.

This is a feature, not a bug.  The Formatter code takes pains to
suppress trailing blanks before line breaks (check DoPrintChar). 

You probably can solve your problem by using PutText(" ", raw := TRUE),
instead of PutChar or plain PutText.  The "raw" flag causes it to treat
blanks as ordinary printing characters.

By the way, note that Formatter.Flush is not a harmless operation like
Wr.Flush, that you can insert anywhere without affecting the output.
Formatter.Flush also closes all pending Begin and Align groups, and
chooses breakpoints as if the expression ended there.  (I intend to
add a harmless Flush once Eric gets the ESP package working. 8-)

--jorge