<br><br><div class="gmail_quote">On 27 May 2011 16:24, jstroup <span dir="ltr"><<a href="mailto:jstroup@regenstrief.org">jstroup@regenstrief.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Hi,<br>
<br>
The 5.2 docs list the following example DSL entry<br>
<br>
[when][][Tt]here is an? {entity:\w+}=${entity!lc}: ${entity!ucfirst} ()<br>
<br></blockquote><div>Oops, there is a spurious '$', the second one. It should be <br> =${entity!lc}: {entity!ucfirst} ()<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
and say the following about what follows the equals sign<br>
<br>
"The remaining part of the line after the delimiting equal sign is the<br>
replacement text for any DSLR text matching the regular expression. It may<br>
contain variable references, i.e., a variable name enclosed in braces."<br>
<br>
What does the colon following the first variable do? </blockquote><div><br>The colon in "...=${entity!lc}: {entity!ucfirst} ()" will remain a colon, after expansion. It's the colon after a binding variable.<br>
<br><br><br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Also, I'm used to (and actually understand) the following syntax which does<br>
not prefix { with a $.<br>
<br>
[when]There is some {cheese} cheese available=Cheese(type=="{cheese}")<br></blockquote><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
My best guess is that the $ denotes a class name that is specified<br>
declaratively in the matching DSLR rule as opposed to a field {cheese} that<br>
is simply a replaceable parameter that matches whatever you type between<br>
"some" and "cheese available" and looks for Cheese objects of that type. <br></blockquote><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
So,<br>
given the first DSL entry, if my rule text is<br>
<br>
when<br>
<br>
there is a cheese<br>
<br>
the rule will fire if a Cheese object has been inserted. And, conversely<br>
<br>
when<br>
<br>
There is an Cheese<br>
<br>
will also fire.<br></blockquote><div><br>Since both expand to<br><br> $cheese: Cheese ()<br><br><br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
<br>
Am I on the right track here?<br>
<br></blockquote><div><br>yes, and thanks for the Q.<br>-W<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Thanks,<br>
<br>
Jeff<br>
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