locate上下文相关函数自始可用
Determines the location of an element in the document.
Takes a selector that must match exactly one element and returns that element’s location. This location can, in particular, be used to retrieve the physical page number and position (page, x, y) for that element.
Examples
Locating a specific element:
#context [
Introduction is at: \
#locate(<intro>).position()
]
= Introduction <intro>
参数
selector
A selector that should match exactly one element. This element will be located.
Especially useful in combination with
hereto locate the current context,- a
locationretrieved from some queried element via thelocation()method on content.