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This These are the different characters in lowercase:
finish monotonic v acute and add character normalization
Just in case you wonder, there are much more fonts that contain glyphs for monotonic Greek that for polytonic Greek.
==Monotonic Accent and Acute Accent==
Although the monotonic accent was acute, Unicode defines a pair of characters for monotonic accented vowels and polytonic acute accented vowels (both uppercase and lowercase and with diairesis).
<pre>
</pre>
In theory, both characters should have the same glyphs (they should be exactly the same strokes). In practice, this is not always the case, since the monotonic accent has been drawn as (almost) a vertical stroke.
The acute accent should mirror the grave accent (it is mainly its horizontal flip). Although acute accented vowels in polytonic Greek could be taken from the Greek and Coptic Unicode block, acute–accented vowels from the polytonic block may be required (because of the mismatch between the monotonic accent and the grave accent).
The following source displays the differences for each character with both accents (uppercase and lowercase characters):<ref>Of course, you should replace <code>Minion Pro</code> with the name of the font you want to test.</ref>
<texcode>
\definefontfamily[mainface][rm][Minion Pro]
\setupbodyfont[mainface]
\definecolor [tred] [r=1,t=.5,a=1]
\definecolor [tblue] [b=1,t=.25,a=1]
\unexpanded\def\tonosoxia[#1][#2]
{\startTEXpage[pagestate=start, offset=1ex]
\startoverlay
{\color[tred]{#1}}
{\color[tblue]{#2}}
\stopoverlay
\stopTEXpage}
\starttext
\tonosoxia[Ά][Ά]
\tonosoxia[Έ][Έ]
\tonosoxia[Ή][Ή]
\tonosoxia[Ί][Ί]
\tonosoxia[Ό][Ό]
\tonosoxia[Ύ][Ύ]
\tonosoxia[Ώ][Ώ]
\tonosoxia[ά][ά]
\tonosoxia[έ][έ]
\tonosoxia[ή][ή]
\tonosoxia[ί][ί]
\tonosoxia[ΐ][ΐ]
\tonosoxia[ό][ό]
\tonosoxia[ύ][ύ]
\tonosoxia[ΰ][ΰ]
\tonosoxia[ώ][ώ]
\stoptext
</texcode>
Depending on your operative system and your keyboard layout for polytonic Greek, it might be that it composes the acute with the monotonic accent (as it seems to happen in ''Linux'').
A workaround to avoid this would be the following:<ref>Although the ConTeXt distribution seems to include the ''EB Garamond'' font family, it is probably not included in the wiki.</ref>
<context source="yes">\startluacode
fonts.handlers.otf.addfeature {
name = "tonosoxia",
type = "substitution",
data = {
Alphatonos = "Ά",
Epsilontonos = "Έ",
Etatonos = "Ή",
Iotatonos = "Ί",
Omicrontonos = "Ό",
Omegatonos = "Ώ",
Upsilontonos = "Ύ",
alphatonos = "ά",
epsilontonos = "έ",
etatonos = "ή",
iotatonos = "ί",
iotadieresistonos = "ΐ",
omicrontonos = "ό",
omegatonos = "ώ",
upsilontonos = "ύ",
upsilondieresistonos = "ΰ"
},
}
\stopluacode
\definefontfeature[tonosoxia][tonosoxia=yes]
\definefontfamily
[mainface]
[rm]
[EB Garamond]
[features={default, tonosoxia}]
\setupbodyfont[mainface, 24pt]
\startTEXpage[offset=1em]
χαλεπὰ τὰ καλά\\
\feature[-][tonosoxia]
χαλεπὰ τὰ καλά\\
\stopTEXpage
</context>
The sample above should display the difference between the more straight monotonic accent on the second line, and the proper acute accent.
==On “Character Normalization”==
Depending on your search, it might be that searching for <code>u</code>, results might include <code>ú</code> <code>ů</code>, <code>ü</code> or any character composed from <code>u</code> and any diacritical mark. Depending on the language, these “normalizations” may belong to the same letter or not (for example, <code>u</code> and <code>ü</code> are the same letter in Spanish, but two different ones in German).
This doesn’t only affects to letters: <code>,</code> and <code>‚</code> are the characters for the comma and the opening single–quotation mark (used in some languages, such as German), respectively. At least, ''Firefox'' only displays the occurrences for each character when the option to match diacritics is selected (otherwise, each character displays both occurrences for commas and these opening single–quotation marks).
At least in ''Linux'' (using ''Firefox''), the option to match diacritics doesn’t distinguish between monotonic and acute accented vowels. In other operative systems and using other programs, results might differ.
=Ancient Greek=
