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Re: Unquoted special characters in regexps
From: |
martin rudalics |
Subject: |
Re: Unquoted special characters in regexps |
Date: |
Sun, 05 Mar 2006 12:10:26 +0100 |
User-agent: |
Mozilla Thunderbird 1.0 (Windows/20041206) |
Luc Teirlinck wrote:
> If you consider in "[a]b]" the first and the second `]' to be _both_
> inside or _both_ outside the context of a character alternative, then
> it would be impossible to determine solely from that notion of context
> which of the two `]' has to be taken literally.
That's what I don't get tired of saying for one week already. You
always denied it by saying things like
The special meaning of `]' inside a character alternative is
obviously to close that alternative.
and
`]' has the special meaning of closing a character alternative
_inside_ a character alternative
If the closing `]' is inside the alternative where does the first `]' in
"[a]b]" go?
> If you consider the
> opening and ending " of a string to be _both_ inside or _both_ outside
> the context of a string, then it would be impossible from that notion
> of context to determine which " open and which " close strings.
You're cheating here: The double-quote opening a string compares to the
_left_ bracket opening a character alternative. The double-quote
closing a string compares to the _right_ bracket closing a character
alternative.
- Re: Unquoted special characters in regexps, (continued)
- Re: Unquoted special characters in regexps, Luc Teirlinck, 2006/03/02
- Re: Unquoted special characters in regexps, Richard Stallman, 2006/03/06
- Re: Unquoted special characters in regexps, Luc Teirlinck, 2006/03/07
- Re: Unquoted special characters in regexps, martin rudalics, 2006/03/07
- Re: Unquoted special characters in regexps, Luc Teirlinck, 2006/03/04
- Re: Unquoted special characters in regexps, Thien-Thi Nguyen, 2006/03/04
- Re: Unquoted special characters in regexps, Luc Teirlinck, 2006/03/04
- Re: Unquoted special characters in regexps,
martin rudalics <=
- Re: Unquoted special characters in regexps, Luc Teirlinck, 2006/03/05
- Re: Unquoted special characters in regexps, martin rudalics, 2006/03/06
- Re: Unquoted special characters in regexps, Luc Teirlinck, 2006/03/05
- Re: Unquoted special characters in regexps, martin rudalics, 2006/03/05
- Re: Unquoted special characters in regexps, Andreas Schwab, 2006/03/05
- Re: Unquoted special characters in regexps, martin rudalics, 2006/03/06
- Re: Unquoted special characters in regexps, Luc Teirlinck, 2006/03/05
- Re: Unquoted special characters in regexps, Luc Teirlinck, 2006/03/05
- Re: Unquoted special characters in regexps, martin rudalics, 2006/03/06