[9fans] Acme Edit to remove lines

[9fans] Acme Edit to remove lines

[dexen deVries]

given multi-line dot, spanning only part of a file, how do i construct
an Edit command to remove lines matching certain regular expression?

wanted to delete lines starting with one particular character; without
leaving an empty line behind, thus Edit s/X.+//d is not sufficient.

Re: [9fans] Acme Edit to remove lines

[Paul Lalonde]

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x/^X.*\n/d
Or
x/^X/+-d

Away from a terminal so probably subtly wrong.
On Fri, May 26, 2017 at 7:23 AM dexen deVries <dexen.devries@gmail.com>
wrote:

> given multi-line dot, spanning only part of a file, how do i construct
> an Edit command to remove lines matching certain regular expression?
>
> wanted to delete lines starting with one particular character; without
> leaving an empty line behind, thus Edit s/X.+//d is not sufficient.
>
>

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Re: [9fans] Acme Edit to remove lines

[James A. Robinson]

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You ought to be able to just add '\n' to the end of your expression in an
'x//' + 'd' command sequence.
For example, "search the file for lines starting with [a-z] and delete the
entire line" would be:

Edit ,x/^[a-z].+\n/d

On Fri, May 26, 2017 at 7:23 AM dexen deVries <dexen.devries@gmail.com>
wrote:

> given multi-line dot, spanning only part of a file, how do i construct
> an Edit command to remove lines matching certain regular expression?
>
> wanted to delete lines starting with one particular character; without
> leaving an empty line behind, thus Edit s/X.+//d is not sufficient.
>
>

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Re: [9fans] Acme Edit to remove lines

[dexen deVries]

thanks, that did the trick indeed.

Re: [9fans] Acme Edit to remove lines

[Micah Stetson]

You can also take advantage of x's default behavior of splitting the selection into lines and use g to select which you want:

Edit x g/^X/d