<div dir="ltr"><div>Hi,<br><br></div>to put it simply, XeTeX is just TeX but it works internally in Unicode, accepts the source files in UTF-8 (BOM is accepted but is not mandatory) and can use TrueType and OpenType fonts installed in the operating system. This means that the \font primitive has other functionality. It is not necessary to know the details from the very beginning but depending on what you want to use, whether XeTeX or XeLaTeX, you have to learn the basics of plain TeX or LaTeX and the basics of language and font selection (packages polyglossia and fontspec in case of XeLaTeX). These packages are quite large, if you choose XeLaTeX, start with simple examples and do not read the whole manual, return to it later after gaining some experience.<br><br><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature">Zdeněk Wagner<br><a href="http://ttsm.icpf.cas.cz/team/wagner.shtml" target="_blank">http://ttsm.icpf.cas.cz/team/wagner.shtml</a><br><a href="http://icebearsoft.euweb.cz" target="_blank">http://icebearsoft.euweb.cz</a></div></div>
<br><div class="gmail_quote">2017-11-29 12:02 GMT+01:00 Elof Ng <span dir="ltr"><<a href="mailto:elof.huang@runbox.com" target="_blank">elof.huang@runbox.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">In the document named "XETEX, the Multilingual Lion: TEX meets Unicode and smart font technologies", Kew mentioned the e-TEX’s typesetting engine, saying XeTeX is in fact based on it, but I found nothing about the e-TEX.<br>
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Is it same as PlainTeX?<br>
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I have briefly read the XeTeX Reference guid, Companion, they just introduce the topics related to the font, what about the others?<br>
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Is XeTeX composed same as PlainTeX?<br>
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Do I have to learn TeX first?<br>
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