CODEWITHSUNDEEP
xmlregexwordpressreplace
ThemesCreator
ThemesCreator

Reputation: 1759

replace all images in an XML file

I have import all my wordpress content and now I want to replace all images with a placeholder image. The most obvious way I think is to search and replace all the images. I try to do it manually but the file is big enougth to make me rethinking this.

This is an example of wordpress exported XML file: https://wpcom-themes.svn.automattic.com/demo/theme-unit-test-data.xml

I would like to replace all images url with placehold.it url (http://placehold.it/)

I am using sublime text editor, is there a any regex to search all the image url on a XML file? I am really not very good with regex..

Thanks in advance!

Upvotes: 2

Views: 724

Answers (2)

Danijel
Danijel

Reputation: 12709

regex:

(\<img\s+.*?src\s*=\s*)(?|"(.*?)"|\'(.*?)\')(.*?\/?\>)

replacement:

$1"http://placehold.it/"$3

If your editor supports regex search and replace then use above, else in PHP:

$string = preg_replace( '/(\<img\s+.*?src\s*=\s*)(?|"(.*?)"|\'(.*?)\')(.*?\/?\>)/is', '$1"http://placehold.it/"$3', $string );

Upvotes: 1

i alarmed alien
i alarmed alien

Reputation: 9530

A simple regex to replace all image src attributes with some placeholder text would be:

Search for:

<img (.*?)src=".*?"

Replace with:

<img $1src="http://example.com"

If you want to use the placeholder URL, you could do:

<img (.*?)src=".*?"(.*?)width="(\d+)" height="(\d+)"

Replace with:

<img $1src="http://placehold.it/$3x$4"$2width="$3" height="$4"

Explanation:

  • .*? means 0 or more characters
  • \d+ means 1 or more digits

  • ( and ) capture the contents of the parentheses and save it to $1, $2, $3, etc.

  • <img (.*?)src captures any characters between <img and src and saves them in $1 -- so if there is a class attribute, an ID, anything like that--it will be saved as $1. .*? can also match nothing, so $1 can also be blank.

  • width="(\d+)" captures the digits that give the image width, and saves them to $3 (since it's the third set of parentheses in that regular expression).

Upvotes: 3

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