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Re: [External] : Use the characters "+" and "-" in regular expressions
From: |
steve-humphreys |
Subject: |
Re: [External] : Use the characters "+" and "-" in regular expressions |
Date: |
Thu, 20 May 2021 15:55:30 +0200 |
> Sent: Friday, May 21, 2021 at 12:46 AM
> From: "Jean Louis" <bugs@gnu.support>
> To: steve-humphreys@gmx.com
> Cc: "help-gnu-emacs@gnu.org" <help-gnu-emacs@gnu.org>
> Subject: Re: [External] : Use the characters "+" and "-" in regular
> expressions
>
> * steve-humphreys@gmx.com <steve-humphreys@gmx.com> [2021-05-20 13:41]:
> > Am seeing how to match strings of blank lines
> >
> > But " +" does not do the job. I know why, but how can one match strings of
> > blanks?
>
> [:blank:] is series of characters for that:
>
> (string-match "[[:blank:]]" " ") ⇒ 0
Have done the following (string-match "^[:blank:]$" s)
Because (string-match "[:blank:]" s) was matching sentences with space between
words as well.
> Match new lines as blanks:
>
> (string-match "[[:blank:]]" "
>
> ") ⇒ 0
>
> There can be many various spaces, like EM SPACE: " "
>
> Thus this will not work on EM SPACE:
>
> (string-match " +" " ") ⇒ nil
>
> But this will work:
> (string-match "[[:blank:]]" " ") ⇒ 0
>
>
> --
> Jean
>
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>
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>
>
- Re: [External] : Use the characters "+" and "-" in regular expressions, (continued)
- [External] : Use the characters "+" and "-" in regular expressions, Christopher Dimech, 2021/05/20
- [External] : Use the characters "+" and "-" in regular expressions, steve-humphreys, 2021/05/20
- [External] : Use the characters "+" and "-" in regular expressions, Christopher Dimech, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions, Jean Louis, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions, tomas, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions, Jean Louis, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions, Jean Louis, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions,
steve-humphreys <=
- Re: [External] : Use the characters "+" and "-" in regular expressions, Jean Louis, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions, steve-humphreys, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions, Yuri Khan, 2021/05/20
- [External] : Use the characters "+" and "-" in regular expressions, steve-humphreys, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions, Eduardo Ochs, 2021/05/20
- RE: [External] : Use the characters "+" and "-" in regular expressions, Drew Adams, 2021/05/20
- Re: [External] : Use the characters "+" and "-" in regular expressions, Jean Louis, 2021/05/21
- Re: [External] : Use the characters "+" and "-" in regular expressions, Jean Louis, 2021/05/20
- Dash in regexp character classes: Beginnig vs. end [was: Use the characters "+" and "-" in regular expressions], address@hidden, 2021/05/20
- Re: Dash in regexp character classes: Beginnig vs. end [was: Use the characters "+" and "-" in regular expressions], Robert Pluim, 2021/05/20