Add remap_layout script #826
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m4rc1e
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* Add remap layout script * Install remap_layout script * Sort --list-subcommands output
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This adds a new script, gftools-remap-layout, which is an alternative to pyftfeaturefreeze; it works on the layout level, whereas pyftfeaturefreeze only remaps cmap tables. This is more flexible as it allows for positioning, contextual substitutions, multiple and ligature substitutions, and other rules to be "frozen", whereas pyfeaturefreeze only works on single substitutions.
gftools-remap-layout, on the other hand, allows you to copy or move a set of lookups from one feature to another. For example, the standard pyftfeaturefreeze example of "freezing" small caps can be achieve by copying (
->) the lookups fromsmcptoccmp:(Currently this assumes that the destination feature exists.)
To create a locale-specific version of a font, you can move (
=>) lookups from theloclfeature of a particular script and language system into another feature. In this case, we add the new lookups to the start (|) of theccmpfeature (default is to add lookups to the end).