Regular Expression for Image Source

Here is a Regular Expression to get the source value of an image tag regardless of the location of the src attribute.

(?<=img\s+[^>]*src\=[\x27\x22])[^\x27\x22]*(?=[\x27\x22])

Options: case insensitive

• Assert that the regex below can be matched, with the match ending at this position (positive lookbehind) «(?<=img\s+[^>]*src\=[\x27\x22])»
  • Match the characters “img” literally «img»
  • Match a single character that is a “whitespace character” (spaces, tabs, line breaks, etc.) «\s+»
    • Between one and unlimited times, as many times as possible, giving back as needed (greedy) «+»
  • Match any character that is NOT a “>” «[^>]*»
    • Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «*»
  • Match the characters “src” literally «src»
  • Match the character “=” literally «\=»
  • Match a single character present in the list below «[\x27\x22]»
  • ASCII character 0×27 (39 decimal) «\x27»
  • ASCII character 0×22 (34 decimal) «\x22»
• Match a single character NOT present in the list below «[^\x27\x22]*»
  • Between zero and unlimited times, as many times as possible, giving back as needed (greedy) «*»
  • ASCII character 0×27 (39 decimal) «\x27»
  • ASCII character 0×22 (34 decimal) «\x22»
• Assert that the regex below can be matched, starting at this position (positive lookahead) «(?=[\x27\x22])»
  • Match a single character present in the list below «[\x27\x22]»
    • ASCII character 0×27 (39 decimal) «\x27»
    • ASCII character 0×22 (34 decimal) «\x22»

Created with RegexBuddy