[REBOL] About Parsing
From: rondon:andrade:uol at: 16-Jul-2001 6:18
Hi Rebolers!,
I'm parsing a text file that was converted from M$word with bibliographic
records such as:
Id: 27698
Author: Kann, James
Title: Crossroads of Life
Abstract: This book talks about the hard ways of life.
Source: State Public Library
Holdings: AGE 12308082
I was parsing the file using this code:
parse/all file [ some [
(id: "")
(author: "")
(title: "")
(source: "")
(abstract: "")
(holdings: "")
thru "Id: ^/^/^/" copy id to "^/"
thru "Author: ^/^/^/" copy author to "^/"
thru "Títle:" thru "^/^/^/" copy title to "^/"
thru "Source:" thru "^/^/^/" copy source to "^/"
thru "Abstract:" thru "^/^/^/" copy abstract to
^/
thru "Holdings:" thru "^/^/^/" copy holdings to
^/
(print "----------------")
(count: count + 1)
(print count)
(print rejoin [ "Id:" id ])
(print rejoin [ "Title:" title ])
(print rejoin [ "Author:" author ])
(print rejoin [ "Source:" source ])
(print rejoin [ "Abstract:" abstract ])
(print rejoin [ "Holdings:" holdings ])
] ]
The problem is that when one of the labels such as "Abstract" is not
present, it is not printing the rest of records present in the file. It just
print "false". It does just the records that has all the labels, I mean "Id,
Title, Author, Abstract, Holdings and Source", if breaks one rule, it will
not print the rest of the record.
How can fix that ? or Do I have to use one parse for each of the labels,
creating a series variable for each label ?
Thanks in advance.
Rondon
