Assuming the multi-line string literal to behave like I summarized it in my
last post and that the for loop runs two times, we’d have to alter your example
a little, which will then feel natural for concatenation.
I use tabs for ident.
// Notice the blank line at the end, which does
// not inject a new line after itself
var xml = """
<?xml version="1.0"?>
<catalog>
"""
for (id, author, title, genre, price) in bookTuples {
// Same here, a blank line at the end which does not
// inject a new line after itself. It's natural for
// concatenation.
xml += """
<book id="bk\(id)">
<author>\(author)</author>
<title>\(title)</title>
<genre>\(genre)</genre>
<price>\(price)</price>
</book>
"""
}
xml += """
</catalog>
"""
You could also write \n or \n\ instead of an explicit new line, but I think
it’s natural enough that way, because now the reader of the code sees that the
next concatenation will happen on the blank line (equivalent to "" + "string
from the next iteration").
The result:
<?xml version="1.0"?>
<catalog>
<book id="bk1">
<author>A</author>
<title>B</title>
<genre>D</genre>
<price>42</price>
</book>
<book id="bk2">
<author>A</author>
<title>C</title>
<genre>D</genre>
<price>42</price>
</book>
</catalog>
--
Adrian Zubarev
Sent with Airmail
Am 13. April 2017 um 11:03:33, Brent Royal-Gordon ([email protected])
schrieb:
var xml = """
<?xml version="1.0"?>
<catalog>
"""
for (id, author, title, genre, price) in bookTuples {
xml += """
<book id="bk\(id)">
<author>\(author)</author>
<title>\(title)</title>
<genre>\(genre)</genre>
<price>\(price)</price>
</book>
"""
}
xml += """
</catalog>
"""
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