Convert the result of a XPath query into a row of numbers
nums = xmlAsNumber(xp)
xp, a XML mlist typed XMLSet or XMLList
nums, a single row of doubles
The result of a XPath query or the children of a node can be a set of XMLElements which contains numbers, so the aim of this function is to convert the contents of each nodes into a double.
doc = xmlReadStr("<root><a>12</a><a>13</a><a>1.2345678</a><a>45e3</a><a>.23E-2</a></root>"); // Retrieve the content of the nodes with name equal to "a" xp = xmlXPath(doc, "//a/text()"); // convert the result into doubles data = xmlAsNumber(xp) xmlDelete(doc); | ![]() | ![]() |
Version | Description |
5.4.0 | XML module introduced. |