What is it about this markup that breaks DW CS3 Design View Editing?
Folks:
I'm attaching very simple --and apparently completely valid-- markup that generates the text shown between the markers below:
------------start----------------
yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda yadda badda.
------------end----------------
As you can see by examining the file, it contains only an span enclosing text and spaces, and some following breaks. This file passes DW validation: no errors or warnings.
If I open this file in DW CS3 Design View, select and delete the last word, "badda", the entire text --every "yadda"-- is also deleted. All that text is really gone -- if I immediately save the file and re-open it, there is no text content at all, just the span pair, spaces, and the trailing breaks. This is completely repeatable.
When you edit this file, do you get the same result?
The attached file is a cut-down, simplified version of a production file that exhibits this issue. (That file also passes validation.) When I delete single words, entire content paragraphs disappear. So this is not just a point of curiosity. I need to figure out how to fix the production code and avoid this problem in the future.
What is it about the attached markup that causes this issue? I've fooled around with this code quite a bit and the best I can figure out is that DW is confused when both the start- and end- span tags are followed immediately by a line break. Inserting a space in either place makes the issue go away. But the production code doesn't have any occurances of this pattern. And, anyway, line-breaks have no significance to html, just for source-code formatting, right?
Am I missing something incredibly obvious?
TIA
hen3ry
Nancy O:
Thank you for your response, which gave me valuable clues to understanding the issues. (Specifically, it led me to re-read and understand better the nitty-gritty of the HTML4 specs, section 7, "The global structure of an HTML Document", especially 7.5.1 The BODY element.)
I believe you are saying --in sum-- that to be reliably edited in DW, each source file must comprise a syntactically correct and complete HTML Document.
I am attaching a second file, "badcode2.html", modified substantially as you suggest. It passes the DW validator, the validator.w3.org test, and the www.totalvalidator.com test. No errors or warnings.
I do this: Launch DW, open this file, choose Design View if necessary, select the final word of text, "badda", and activate Edit-->Cut (or Delete). As before, all the other text is deleted as well. This is repeatable.
It seems to me this sample code satisfies your general principle. Could I be misapplying the three validation tests? Or that passing these tests does not assure the document is syntactically correct and complete? Can you recommend other tests?
I'd like to add the following two points as a matter of background and a bit of niggling:
--I'm aware that complete HTML pages must contain <html> , <head>, and <body> tags, although the HTML4 specification seems to say <body> tags are optional. All my production pages, as served, contain these tags. My underlying design is a php template with individual content files incorporated by inclusion. There may be only one set of <html> , <head>, and <body> in a page. The "outer" template code provides these tags, and individual content files cannot contain a nested set -- so they must be "bare" markup. Is DW able to support this design, in which "bare markup" files are seemingly unavoidable? Is there a mechanism analogous to DW Design-Time Style Sheets to provide virtual existence of these tags so "bare markup" files can be successfully edited? I've looked for such a mechanism but not found one. Or some completely different method?
--You specify the inclusion of <p> or <h1> tags within the body. Is there some special significance of <p> or <h1> with respect to stable editing in DW? My reading of the HTML4 spec indicates that a single block element is the minimal requirement for body content. Either of these tags qualify, right? But so does <div>, and that's what I use in my current example. Am I misunderstanding something?
Bottom line, I'm looking for a pragmatic solution for my problem: Once in a while, among hundreds of structurally similar "bare markup" pages I edit in DW without any problem, I lose data. If inserting an additional tag into all my content include files eliminates these occasional problems, I'm willing to do that, as long as: (1) There is an arguable technical basis for the addition, (2) the added tag does not produce anything visible on the served page, and (3) the validators don't flag the extra tag.
Suggestions, please!
Thanks,
hen3ry
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