SyNTeX is a LaTeX preprocessor that draws syntactic trees using the LaTeX picture environment. The preprocessor reads the comments in a LaTeX file and draws the tree based on commands that it finds in the comments.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.