www/htdocs/TMW_RTF_TO_THDL_WYLIE.html
dchandler 5506510c68 The Wylie 'M' used to map to TMW7.91, when it should map to TMW7.90.
I've fixed that.

I've also added a couple of Unicode mappings to give a flavor for how
multi-codepoint mappings will be represented.

TM->TMW conversion takes about 1 second per thousand glyphs on my
PIII-550.

Now linking to BabelPad.
2003-06-01 23:11:19 +00:00

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<h2>Tibetan Machine Web Converter</h2>
<p>
In the same JAR file as Jskad, power users will find a command-line
utility that converts a Tibetan Machine Web-encoded (TMW-encoded) Rich
Text Format (RTF) file to either of these two output formats:
</p>
<ul>
<li>RTF files with the appropriate THDL Extended Wylie (Wylie) used
instead of TMW</li>
<li>RTF files in Tibetan Machine (used in legacy systems)</li>
</ul>
<p>
This converter is smart enough to solve the &quot;curly-brace
problem&quot;.&nbsp; This problem originates with certain versions
of Microsoft Word's Rich Text Format writing capabilities.
</p>
<p>
Further, this converter gives a polite error message when a given
.rtf file simply cannot be read by the version of Java used.
</p>
<p>
Perhaps most importantly, the converter has a
<tt>--find-some-non-tmw</tt> mode of operation that gives you, the
user, confidence that RTF reading and writing idiosyncrasies are not
going to interfere with a flawless conversion.&nbsp; It does so by
printing out the first occurrence of a given character in a non-TMW
font.&nbsp; Here is some example output:
</p>
<pre>
java -cp Jskad.jar \
org.thdl.tib.input.TMW_RTF_TO_THDL_WYLIE \
--find-some-non-tmw \
"Dalai Lama Fifth History 01.rtf"
non-TMW character newline in the font Tahoma appears first at location 39
non-TMW character ' ' in the font TimesNewRoman appears first at location 45
non-TMW character '}' in the font Tahoma appears first at location 66
non-TMW character '{' in the font Tahoma appears first at location 219
non-TMW character '\' in the font Tahoma appears first at location 1237
non-TMW character newline in the font Times New Roman appears first at location 9754
</pre>
<p>
Given the above output, you can be sure that a flawless conversion
(barring the appearance of <a href="#knownbugs">known bugs</a>) will
result when you run <tt>java -cp Jskad.jar
org.thdl.tib.input.TMW_RTF_TO_THDL_WYLIE --to-wylie "Dalai Lama
Fifth History 01.rtf" &gt; "Dalai Lama Fifth History 01 in THDL
Extended Wylie.rtf"</tt>.&nbsp; This is because the only text in the
input file besides Tibetan is whitespace and the Tahoma characters
<tt>'{'</tt>, <tt>'}'</tt>, and <tt>'\'</tt>. These Tahoma
characters are understood by the tool; they are symptoms of the
&quot;curly-brace problem&quot;.
</p>
<p>
Note that some TMW glyphs have no transliteration in Exteded
Wylie.&nbsp; When you encounter such a glyph, you'll find a message
like the following in your RTF output:
</p>
<p>
<tt>&lt;&lt;[[JSKAD_TMW_TO_WYLIE_ERROR_NO_SUCH_WYLIE: Cannot convert
DuffCode &lt;duffcode font=TibetanMachineWeb8 charNum=101
character=e/&gt; to THDL Extended Wylie.&nbsp; Please see the <a
href="http://iris.lib.virginia.edu/tibet/tools/tmw.html#doc">
documentation for the TMW font</a> and transcribe this
yourself.]]&gt;&gt;</tt>
</p>
<p>
Upon seeing this, you should consult the <a
href="http://iris.lib.virginia.edu/tibet/tools/tmw.html#doc">
documentation</a> for the specific TMW font named.&nbsp; Find the
glyph (by its charNum) and decide how to proceed.&nbsp; If you find
a glyph that you believe should have been converted into Extended
Wylie by the tool, please report this as a bug.
</p>
<p>
Note also that there is one TMW glyph (TibetanMachineWeb7, glyph 91)
that has no Tibetan Machine equivalent. A 72-point copy of the
Tibetan alphabet will be inserted (in TMW) before this glyph.&nbsp;
Some common-but-illegal TibetanMachine input will also cause the
alphabet to appear before the offending glyph.&nbsp; Please use
Jskad to convert such documents, as it has better error checking and
can tell you just what's wrong.&nbsp; If you ever encounter these
problems, please send us mail with the error report (and the problem
input document) so that we can improve our tools.
</p>
<h3>Invoking the Converter</h3>
<p>
First add Jskad.jar to your CLASSPATH.&nbsp; Now run the command
<tt>java org.thdl.tib.input.TMW_RTF_TO_THDL_WYLIE</tt> from a
command prompt.&nbsp; You will see usage information appear.&nbsp;
Forgive the name; this converter's scope widened after its creation.
</p>
<h3><a name="knownbugs"></a>Known Bugs</h3>
<p>
If the TMW given is not syntactically legal, then the Wylie that
results will not necessarily yield, if imported into Jskad, the same
Tibetan with which the converter started.
</p>
<p>
Please
<a href="mailto:thdltools-devel@lists.sourceforge.net">
e-mail us</a>
your comments about this page.
</p>
<p>
The
<a target="_blank" href="http://www.sourceforge.net/projects/thdltools">
THDL Tools</a>
project is generously hosted by:
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