Colorizer is a component which can be used for publishing source codes and the similar things. It takes plain text (from file or string) and returns HTML version, where all the keywords and blocks are marked according to the given schema. Schema can be adapted for your needs.

If you have no possibilities to install the component on server, you can use desktop application , which is shipped with the component. It loads text files and saves ready HTML files, thus you can upload to server HTML files.