I wanted to write a Greasemonkey script to modify all mailto: links on a page, but to do that, I have to find them first.<\/p>\n
Here’s my first attempt:<\/p>\n
\/\/a[@href]\/text()[contains(.,”@”)]<\/p>\n
It’s pretty bad. I wanted to find links starting with “mailto:” but couldn’t figure out how to operate on the href attribute.<\/p>\n
second attempt:<\/p>\n
\/\/a\/@href[contains(.,”mailto:”)]\/..<\/p>\n
Here you can see that I managed to operate on the href attribute, and then back back up to the a node. I learned how to select the attribute, instead of using the attribute to select the node.<\/p>\n
third attempt:<\/p>\n
\/\/a[contains(@href,”mailto:”)]<\/p>\n
Simplified even further!<\/p>\n
fourth attempt:<\/p>\n
\/\/a[starts-with(@href,”mailto:”)]<\/p>\n
I knew there was a starts with function… I just had to look it up.<\/p>\n","protected":false},"excerpt":{"rendered":"
I wanted to write a Greasemonkey script to modify all mailto: links on a page, but to do that, I have to find them first. Here’s my first attempt: \/\/a[@href]\/text()[contains(.,”@”)] It’s pretty bad. I wanted to find links starting with “mailto:” but couldn’t figure out how to operate on the href attribute. second attempt: \/\/a\/@href[contains(.,”mailto:”)]\/..…<\/p>\n Read More<\/span> Using XPath to find email address links<\/span><\/a>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":""},"categories":[9,4],"tags":[18],"class_list":["entry","author-admin","post-31","post","type-post","status-publish","format-standard","category-neato","category-technical","tag-xml"],"_links":{"self":[{"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/posts\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/comments?post=31"}],"version-history":[{"count":8,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/posts\/31\/revisions"}],"predecessor-version":[{"id":86,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/posts\/31\/revisions\/86"}],"wp:attachment":[{"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/media?parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/categories?post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.crccheck.com\/blog\/wp-json\/wp\/v2\/tags?post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}