Multiple flow() functions in same content property with difference ranges can cause problems

daisy / pipeline-mod-braille

!! NOTE: This project is now part of the pipeline-modules project !! | Braille Production Modules for the DAISY Pipeline 2

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Multiple flow() functions in same content property with difference ranges can cause problems #160

Open bertfrees opened 7 years ago

bertfrees commented 7 years ago

When a flow(x) is combined with a flow(y, volume) in the content property of a volume area, they can end up in a single dynamic-sequence, which results in flow(x) not being rendered if flow(y, volume) evaluates to nothing.

In some cases this is desired, in some cases not.

An example of where this is desired is in nlb-default.scss:

@volume {
    @end {
        content: flow(endnotes-title) flow(endnotes, volume);
    }
}