If you can use UnicodeĬharacters, nice directional quotation marks are available in the form Then use the apostrophe character (0x27) as both the left and right If you can use only ASCII’s typewriter characters, Quotation marks, while most modern systems follow the ISO and Unicode Some old video terminals show ASCII 0圆0/0x27 as left and right Text will otherwise appear rather strange with most modern fonts Summary: Please do not use the ASCII grave accent (0圆0) asĪ left quotation mark together with the ASCII apostrophe (0x27) as theĬorresponding right quotation mark (as in `quote'). but after several years, I came to discover that the font worked just fine when tried on Windows 7 instead of Windows XP.ASCII and Unicode quotation marks ASCII and Unicode quotation marks I expect that this risk might be low in the case of ligatures, but it's still worth pointing out I myself had an issue quite some time ago where a chaining contextual substitution defined in a font I made only worked when tested within FontForge. It's worth noting, though, that particular client applications and OSes may not necessarily support ligatures that are specified within fonts. As an added bonus, if the text were to be rendered in a different font for some reason, the rendered text would be more comprehensible than that of a nonexistent glyph. This is a fairly simple dialog… you simply provide a name for the sub-table, and then another dialog will pop up and you will (finally) be able to store your ligature information.Īs an example, by defining your glyph to be a "ligature" for the string of characters "$", you could make that sequence of characters be substituted by your glyph wherever they would be rendered by your font. Select the lookup line (in the Lookups pane of Font Info) and press. Once you have created a lookup, you must create a subtable in that lookup. “liga” corresponds to “Standard Ligatures”). (If you click on the little box to the right of “liga” you will get a pulldown list of the so-called “friendly names” for the features. The “ffi” ligature is a standard ligature in latin typesetting so it should be bound to the ‘liga’ tag, and the ‘latn’ script. You may then bind this lookup to a feature, script and language set. For ligatures this should be “Ligature Substitution”. This will give you a new dialog in which you can fill in the attributes of your new lookup. You would open the Lookups pane of the Element->FontInfo command and press the button. You must also include information in the font to say that the glyph is a ligature, and to say what components it is built from. Unfortunately simply creating a ligature glyph is not enough. If you want to build a ligature out of the glyphs “longs”, “longs” and “l” then name it “longs_longs_l”, if you want to build a ligature out of Unicode 0D15, 0D4D and 0D15 then name it “uni0D15_uni0D4D_uni0D15”. The name is important, if you name it correctly FontForge will be able to figure out that it is a ligature and what its components are. First add an unencoded glyph to your font (or if your font is a Unicode font, you could use a code point in the private use area), and name the glyph. If you wish to build a ligature that is not part of Unicode you may do so. However, the tool could benefit your use case. The typical use is to implement specialized glyphs for character sequences such as "ffl" that might look weird if rendered using the standard glyphs of each letter. Under the hood, ligatures scan the characters that are to be rendered for specific sequences, and if any such sequences are found, the entire set of characters are represented with a single, combined glyph that represents all of those characters together. You could probably achieve the effect of custom glyphs displayed in a custom font by (ab)using ligatures. This isn't a direct solution so much as a potential workaround.
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