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Wireshark-dev: Re: [Wireshark-dev] Display filter field variables

From: João Valverde <joao.valverde@xxxxxxxxxxxxxxxxxx>
Date: Fri, 8 Oct 2021 16:35:17 +0100
Thanks a lot. :-)

Seems like I was wrong and it's a macro after all.

On 08/10/21 16:31, chuck c wrote:
Display Filter Macros of currently selected packet fields
https://gitlab.com/wireshark/wireshark/-/wikis/DFilterMacro <https://gitlab.com/wireshark/wireshark/-/wikis/DFilterMacro>

https://gitlab.com/wireshark/wireshark/-/commit/9865b6346f6442bc8326cde55e5f012250748131 <https://gitlab.com/wireshark/wireshark/-/commit/9865b6346f6442bc8326cde55e5f012250748131>

On Fri, Oct 8, 2021 at 10:10 AM João Valverde via Wireshark-dev <wireshark-dev@xxxxxxxxxxxxx <mailto:wireshark-dev@xxxxxxxxxxxxx>> wrote:

    Hi,

    The GUI display filter has an interesting but little-known (?) feature
    to replace field values for the selected frame with the syntax
    ${<field>}, which I only learned about in bug #15504, and confused
    me at
    first. This all happens before the expression is compiled and is
    different from display filter macros.

    Does anyone know more about this? And where it is implemented in the
    GUI
    code?
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