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- From: fairfield@slacvx.slac.stanford.edu
- Subject: Re: Procedure to matchup (){}[] ???
- Message-ID: <1992Nov11.103109.1@slacvx.slac.stanford.edu>
- Lines: 37
- Sender: news@unixhub.SLAC.Stanford.EDU
- Organization: Stanford Linear Accelerator Center
- References: <DAVIS.92Nov11085239@pacific.mps.ohio-state.edu>
- Date: Wed, 11 Nov 1992 18:31:09 GMT
-
- In article <DAVIS.92Nov11085239@pacific.mps.ohio-state.edu>, davis@pacific.mps.ohio-state.edu ("John E. Davis") writes:
- > While these procedures that have been posted may work fine for most purposes,
- > I do not think they will as expected work for:
- >
- > if ((ch == ')') || (ch == '('))
- > {...}
- >
- > Does anyone have one that works properly for this case? If so, does it also
- > work for this:
- >
- > if ((ch == '\'') || (ch == '\\'))
- > {...}
-
- The EVE_MATCH_DELIMITORS I posted early last week works correctly in
- matching the parentheses (you didn't say WHAT you thought the unexpected
- behaviour to be) for the _second_ case (perhaps you ought to _try_ the
- procedures rather than just guessing :-), but the first case is tougher
- because there's an "extra" copy of the delimiter you're trying to match
- within a quoted string.
-
- I believe you're be asking the MATCH procedure to know a given
- language's syntax for "quoting" a string, and to ignore delimiters
- embedded within those strings. I can think of ways to do that, but I can
- imagine more cases of it making the _wrong_ choice rather than the right
- one... You basically have to search the WHOLE buffer to see if you're
- within a (language-specific-syntax) quoted string. I wouldn't want to
- attempt that, I'd rather let the compiler catch _those_ cases... "Operator
- intervention" in the relatively infrequent cases, like your first example,
- shouldn't be to ask :-)
-
- -Ken
- --
- Dr. Kenneth H. Fairfield | Internet: Fairfield@Slac.Stanford.Edu
- SLAC, P.O.Box 4349, MS 98 | DECnet: 45537::FAIRFIELD (45537=SLACVX)
- Stanford, CA 94309 | BITNET Fairfield@Slacvx
- ----------------------------------------------------------------------------
- These opinions are mine, not SLAC's, Stanford's, nor the DOE's...
-