[Webkit-unassigned] [Bug 212947] New: [Win] ComplexTextControllerUniscribe: Retry ScriptShape with SCRIPT_UNDEFINED if it failed as USP_E_SCRIPT_NOT_IN_FONT

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=212947

            Bug ID: 212947
           Summary: [Win] ComplexTextControllerUniscribe: Retry
                    ScriptShape with SCRIPT_UNDEFINED if it failed as
                    USP_E_SCRIPT_NOT_IN_FONT
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Text
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com
                CC: mmaxfield at apple.com

[Win] ComplexTextControllerUniscribe: Retry ScriptShape with SCRIPT_UNDEFINED if it failed as USP_E_SCRIPT_NOT_IN_FONT

Displaying Text with Uniscribe
https://docs.microsoft.com/en-us/windows/win32/intl/displaying-text-with-uniscribe

> 7. If ScriptShape returns the code USP_E_SCRIPT_NOT_IN_FONT or
> S_OK with the output containing missing glyphs, select characters
> from a different font. Either substitute another font or disable
> shaping by setting the eScript member of the SCRIPT_ANALYSIS
> structure passed to ScriptShape to SCRIPT_UNDEFINED. For more
> information, see Using Font Fallback.

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