[ Scripted Compiler :: Scripted Parsing ]
See Yeti for a parser generator written in Tcl, and generating parsers implemented in Tcl.
And yet another parser generator is taccle.
A C parser generator in the public domain is Lemon.
Tcllib has modules to help in the construction of parsers too. See ...
Examples:
Places where we can find grammars for variuous languages:
[ Scripted Compiler :: Scripted Parsing ]