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
