Name
pfont:GetCoverage -- get coverage map
Synopsis
cov = pfont:GetCoverage(language)
Function
Computes the coverage map for a given font and language tag. The language parameter must be set to a Pango language object.

This function returns a newly-allocated Pango coverage object. You are responsible for freeing this object using pcoverage:Free().

Inputs
language
the language tag
Results
cov
a newly-allocated Pango coverage
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