TextExpander Snippet for Creating and Formatting Telephone Number Links

textexpander-snippet-for-creating-and-formatting-telephone-number-links.js

// Start with the clipboard content 
var result = TextExpander.pasteboardText;

// Use ONE of the following three code lines to format the number

// As xxx-xxx-xxxx
result = result.replace(/^[(). –-]*(\d\d\d)[(). –-]*(\d\d\d)[(). –-]*(\d\d\d\d)[(). –-]*(?: *x *(\d+))?$/, '[$1-$2-$3 x$4](tel:$1$2$3p$4)');
// As xxx.xxx.xxxx
// result = result.replace(/^[(). –-]*(\d\d\d)[(). –-]*(\d\d\d)[(). –-]*(\d\d\d\d)[(). –-]*(?: *x *(\d+))?$/, '[$1.$2.$3 x$4](tel:$1$2$3p$4)');
// As (xxx) xxx-xxxx
// result = result.replace(/^[(). –-]*(\d\d\d)[(). –-]*(\d\d\d)[(). –-]*(\d\d\d\d)[(). –-]*(?: *x *(\d+))?$/, '[($1) $2-$3 x$4](tel:$1$2$3p$4)');

// Strip empty extensions from the link text
result = result.replace(/ x\]/, ']');
// Strip empty extensions from the tel: URI
result = result.replace(/p\)/, ')');

// Return the result
TextExpander.appendOutput(result);

Note that this is currently limited to United States numbers, and I have provided three options for how to format the output. Adaptation to non-US numbers should be fairly straightforward, unless you want to support multiple national formats, which is much more complex.