Function cursive::utils::prefix_length
[−]
[src]
pub fn prefix_length<'a, I>(iter: I, width: usize, delimiter: &str) -> usize where I: Iterator<Item=&'a str>
Computes the length of a prefix that fits in the given width
.
Takes non-breakable elements from iter
, while keeping the
string width under width
(and adding the length of delimiter
between each element).
Given total_text = iter.collect().join(delimiter)
, the result
is the length of the longest prefix of width
or less cells,
without breaking inside an element.
Example:
extern crate unicode_segmentation; use unicode_segmentation::UnicodeSegmentation; let my_text = "blah..."; // This returns the number of bytes for a prefix of `my_text` that // fits within 5 cells. prefix_length(my_text.graphemes(true), 5, "");