Ant replace token from properties file

Question

i would like to replace tokens in source files with Ant:

some test ${foo} other text ...

Tokens are contained in a properties file eg.:

Answer 1

This is somewhat similar to these.

Properties are loaded from the file properties.txt. The weakness here is that all occurrences of ${ in your input text are converted to { before the token substitution - which may well break things if that string appears elsewhere in the text. If that is a problem, it still aught to be possible to adapt this solution.