changes-1.06

将rft格式文件转换成html格式文件

Changes for RTF distribution release 1.06
-----------------------------------------

Up through distribution 1.05, development was based on example RTF files
generated only with Word for Macintosh 4.0 and 4.0C.  I've since had access
to Word for Windows 1.1, which generates RTF differing somewhat from
WfM RTF.  Experience with these differences led to some changes which make
the reader (and thus the translators) more robust.  For instance, you should
not get style expansion loop error messages.

Some support for NeXT-generated RTF documents was added.  I don't have
access to a NeXT, so this is all guesswork.

-----------------------------
the RTF reader:

There is a new routine RTFSetToken() for synthesizing fake tokens.
RTFToken() was renamed to RTFGetToken() for symmetry.

Added a couple of symbols (brdrbar/rtfBorderBar and brdrbtw/rtfBorderBetween).

Changed the strings "picwGoal" and "pichGoal" to "picwgoal" and
"pichgoal", because the RTF spec has little g's in those.  THEN I
saw a file in which pic[wh]Goal were really used.  Sigh.  So now
the reader accepts both.  Maybe it should just be made case insensitive
on control words...

rtfCellMoveX -> rtfCellPos

Stylesheet reader modified to correctly handle missing \sbasedon and \snext
in stylesheet entries.  rtfBasedOnNone (=222) is available as the symbolic
constant explicitly indicating "this style is based on no other".

There are default readers for the \info and \pict groups now (they
just skip the group).

Symbols added for NeXT support:

\gray


-----------------------------
rtfwc:

Understands how to deal with multiple file arguments.
(rtfdiag should do so, too, but doesn't yet.)


-----------------------------
rtf2troff:

Headers and footers seem to work even worse than they did before.

Yikes. I had never put in stuff to catch paper width or height changes.
Fixed.

Added some table support.  Output is generated that must be run through
tbl.

Output text lines are now broken to reasonable length if possible.
This prevents paragraphs from coming out as one lonnnnnnnnnnnnng line
of text and makes the output more readable/editable.

Underlining is now enabled by default instead of disabled.  The output is
still voluminous, but at least now is editable since lines are broken.

The +u/-u and +s/-s options turn on/off underlining/strikethrough.

Added support for handling different versions of troff that have different
special character conventions, and for generating special character sequences
used by macro packages (-me, -mm, -ms).  Unfortunately, this is the only
part of the output that is specialized for particular macro packages so far.

Correctly processes input containing "\" characters.