[REBOL] Re: Parse Problem
From: greggirwin:mindspring at: 29-Oct-2001 16:33
Hi Louis,
<< Why doesn't the following program work? It should find field/1 in ibidem
and replace it with field/2 (see Modify the String in the Parsing section
of the Users Guide). >>
Hopefully someone will correct me if I misinform you, but here's my analysis
and a solution.
In your call to parse, field/1 is not recognized because while parse can get
word values, it doesn't seem to allow a path reference on a word. That's my
guess anyway. The part of the code inside parenthesis can be valid REBOL
code, not just parse dialect, so it's OK in there. The solution is to set a
temporary variable and use that (see below). The other thing I added was to
use the /part refinement with change. Since you're substitution is longer
than what you're replacing, you'll overwrite other data just using change.
foreach field fields [
foreach ibidem ibidems [
f1: field/1
parse ibidem [any [to f1 mark: (change/part mark field/2
length? f1) skip]]
]
]
HTH!
--Gregg
