Re^2: On-the-fly all-languages syntax highlighting

in reply to Re: On-the-fly all-languages syntax highlighting
in thread On-the-fly all-languages syntax highlighting

See the documentation on the Benchmark module that comes with Perl.

Using B (probably with some backend such as B::Terse, I can’t imagine you want the bare B module) would only be a security issue if you want to highlight code submitted to your site by anyone, and that’s not because of B itself so much as because using B requires Perl to have compiled the code, which is inseparably connected with the possibility of having code run at compile-time.

Makeshifts last the longest.

Comment on Re^2: On-the-fly all-languages syntax highlighting
Re: Re^2: On-the-fly all-languages syntax highlighting by SavannahLion (Pilgrim) on Dec 17, 2003 at 06:16 UTC
Using B (probably with some backend such as B::Terse, I can't imagine you want the bare B module) would only be a security issue if you want to highlight code submitted to your site by anyone, and that's not because of B itself so much as because using B requires Perl to have compiled the code, which is inseparably connected with the possibly of having code run at compile-time. That's exactly the problem I'm worried about. The site is open ended and allows text to be uploaded. I mentioned B since I saw that it appeared to have some C specific routines that might be utilized for what I want. I toyed with that idea for all of 40 seconds when I realized that B is ultimately designed to compile C and that someone might be able to invoke the compiler through some bug somewhere I wasn't aware of. A risk I didn't want to take. About Text::VimColor. I looked over the documentation for Text::VimColor and I don't think this is a viable alternative for my needs. The wya I figure it, I suppose I could get away caching the output (I already have stubbed code for exactly that sort of thing), but am I correct in understanding that this module utilizes Vim? ----- Is it fair to stick a link to my site here? Thanks for you patience.	[reply]
Re: Re: Re^2: On-the-fly all-languages syntax highlighting by Anonymous Monk on Dec 17, 2003 at 08:29 UTC
but am I correct in understanding that this module utilizes Vim? From Text::VimColor docs: Text::VimColor - syntax color text in HTML or XML using Vim	[reply]
Re^4: On-the-fly all-languages syntax highlighting by Aristotle (Chancellor) on Dec 17, 2003 at 10:01 UTC
B is ultimately designed to compile C and that someone might be able to invoke the compiler through some bug somewhere I wasn’t aware of. Uh… not exactly. B has nothing to do with C compilation, and even B::CC has no code to invoke a compiler. What I was referring to is `BEGIN` blocks, use, and the like. Makeshifts last the longest.	[reply] [d/l]
Re: Re^4: On-the-fly all-languages syntax highlighting by SavannahLion (Pilgrim) on Dec 17, 2003 at 17:12 UTC
Uh.. not exactly. B has nothing to do with C compilation, and even B::CC has no code to invoke a compiler. . Oh, OK, I think I understand now. When I read, This compiler backend takes Perl source and generates C source code corresponding to the internal structures that perl uses to run your program. When the generated C source is compiled and run, it cuts out the time which perl would have taken to load and parse your program into its internal semi-compiled form. That put me under the impression that it generated and compiled C code. I kept wondering about that blurb near the bottom about "some compilers." I just didn't put two and two together, my bad. ---- Is it fair to stick a link to my site here? Thanks for you patience.	[reply]


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Re^2: On-the-fly all-languages syntax highlighting

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