Wireshark mailing list archives
Re: Does lua provide something like range strings?
From: Richard Sharpe <realrichardsharpe () gmail com>
Date: Wed, 10 Oct 2018 09:40:19 -0700
On Wed, Oct 10, 2018 at 9:30 AM Peter Wu <peter () lekensteyn nl> wrote:
On Tue, Oct 09, 2018 at 11:38:29AM -0700, Richard Sharpe wrote:On Tue, Oct 9, 2018 at 7:14 AM Peter Wu <peter () lekensteyn nl> wrote:Hi Richard, On Mon, Oct 08, 2018 at 10:59:35AM -0700, Richard Sharpe wrote:I am wondering if the Lua interp in Wireshark provides the equivalent of range strings? Does anyone know? I guess I could make the indexes strings, since they are associative arrays anyway but looking up a value in a range would be difficult.There does not seem to be support for range strings, but it could be added. See value_string_from_table in epan/wslua/wslua_proto_field.c for an example. I suppose that the natural syntax would be: local your_range_string = { { 0, 24, "First quarter" }, { 25, 54, "Second quarter" }, };Hmmm, I think it might need more than that: #define WSLUA_OPTARG_ProtoField_new_VALUESTRING 4 /* A table containing the text that corresponds to the values, or a table containing unit name for the values if base is `base.UNIT_STRING`, or one of `frametype.NONE`, `frametype.REQUEST`, `frametype.RESPONSE`, `frametype.ACK` or `frametype.DUP_ACK` if field type is ftypes.FRAMENUM. */ The code handling a new ProtoField assumes that arg 4 is a ValueString ... there would have to be some way to indicate that it is a range string. The BASE field is field 5. We could have symbols ORed into that, I guess.Right, the current documentation already contains a case for base.UNIT_STRING, you would have to add an additional base.RANGE_STRING. Will you be working on this feature?
I have started. Give me a few days. -- Regards, Richard Sharpe (何以解憂?唯有杜康。--曹操)(传说杜康是酒的发明者) ___________________________________________________________________________ Sent via: Wireshark-dev mailing list <wireshark-dev () wireshark org> Archives: https://www.wireshark.org/lists/wireshark-dev Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-dev mailto:wireshark-dev-request () wireshark org?subject=unsubscribe
Current thread:
- Does lua provide something like range strings? Richard Sharpe (Oct 08)
- Re: Does lua provide something like range strings? Peter Wu (Oct 09)
- Re: Does lua provide something like range strings? Maynard, Chris (Oct 09)
- Re: Does lua provide something like range strings? Richard Sharpe (Oct 09)
- Re: Does lua provide something like range strings? Richard Sharpe (Oct 09)
- Re: Does lua provide something like range strings? Peter Wu (Oct 10)
- Re: Does lua provide something like range strings? Richard Sharpe (Oct 10)
- Re: Does lua provide something like range strings? Peter Wu (Oct 09)