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
