Oh: what about turning the editor into a port and then using regexp-matching on it? The position of the port will be a delta from where you created the position of the editor. Eg:
#lang racket/gui (define t (new text%)) (void (send t load-file (collection-file-path "private/rep.rkt" "drracket"))) (define p (open-input-text-editor t)) (regexp-match? #rx"lambda" p) (port-next-location p) Robby On Mon, Dec 12, 2011 at 4:36 PM, Erich Rast <er...@snafu.de> wrote: > Yes, sorry, I've meant string-snip%. > > Okay, I'll iterate over snips then, because I need to match > whole character sets. > > Thanks! > > Best, > > Erich > > On Mon, 12 Dec 2011 16:12:13 -0600 > Robby Findler <ro...@eecs.northwestern.edu> wrote: > >> You might get away with just using the find-string method of text%, >> but if not, then you do have to iterate snip by snip. The positions >> inside string-snip%s are offsets from the position of the whole snip >> for characters (is that what you're asking for when you say >> text-snip%?). >> >> Robby >> >> On Mon, Dec 12, 2011 at 4:08 PM, Erich Rast <er...@snafu.de> wrote: >> > Is there a fast way to iterate over items or words in a text% >> > instance starting from some position. For example, I'd like to go >> > forward or backward starting from a position until a character in a >> > given srfi14 char-set is found. >> > >> > Using a string returned get-text doesn't seem to work in general >> > because of the ambiguity between "." meaning dot or being an >> > embedded image. >> > >> > Do I need to iterate over snips using find-snip and then use the >> > same position in the snip if it is a text-snip%? Is the position >> > within a text-snip% the same as the position used by find-snip? If >> > not, how do I calculate the offset? >> > >> > >> > Best, >> > >> > Erich >> > >> > _________________________________________________ >> > For list-related administrative tasks: >> > http://lists.racket-lang.org/listinfo/users > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
