[Fontconfig-bugs] [Bug 90330] Preserve binding when preparing patterns

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90330

--- Comment #2 from Behdad Esfahbod <freedesktop at behdad.org> ---
Created attachment 115569
  --> https://bugs.freedesktop.org/attachment.cgi?id=115569&action=edit
Patch

Sample patch attached.  It slightly slows down matching, but should be fine.

We might need to go loosen up some of the binding="same" from
30-metric-aliases.conf after we expose this.

With this patch:

behdad:src 0$ ../fc-match/fc-match 'arial,nazli' --sort --verbose | grep
'family:' | head
    family: "Arial"(s)
    family: "Arial"(s)
    family: "Liberation Sans"(s)
    family: "Nimbus Sans L"(w)
    family: "DejaVu Serif"(w)
    family: "DejaVu Serif"(w)
    family: "DejaVu Serif"(w)
    family: "DejaVu Serif"(w)
    family: "Kinnari"(w)
    family: "Norasi"(w)

without this patch:

ehdad:src 0$ ../fc-match/fc-match 'arial,nazli' --sort --verbose | grep
'family:' | head
    family: "Arial"(s)
    family: "Arial"(s)
    family: "Liberation Sans"(s)
    family: "Nimbus Sans L"(s)
    family: "DejaVu Serif"(s)
    family: "DejaVu Serif"(s)
    family: "DejaVu Serif"(s)
    family: "DejaVu Serif"(s)
    family: "Kinnari"(s)
    family: "Norasi"(s)

check the bindings.

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