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The fontcharacters( function returns a string (text) containing all of the characters supported by the specified font.

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Parameters

This function has one parameter:

font – name of the font.

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Description

This function returns a string (text) containing all of the characters supported by the specified font.

fontcharacters("Helvetica") contains "A" ☞ TRUE
fontcharacters("FontAwesome") contains "A" ☞ FALSE

Note: You may wonder why this information isn’t returned by the fontinfo( function. It turns out that generating this string is somewhat time consuming. Since this list of characters is rarely needed, this operation was put into a separate function so that it wouldn’t affect the performance of the fontinfo( function. If you need to use this sequence of characters multiple times, you should copy it into a variable and use that rather than invoking the function over and over again (especially in a loop).

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Error Messages

no font named: – The specified font is not installed on your system.

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See Also

• fontinfo( -- returns a dictionary with information about a specified font.
• fontinformation -- accesses information about a font (see also the fontinfo( function).
• info("fonts") -- returns a list of all fonts installed on this computer.
• measuretext( -- returns the size of a string of text in a particular font and size.

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History

Version	Status	Notes
10.0	New	New in this version.