What languages used to write computer languages?
joe_the_user: A lot of languages weren't written in pure c but involved a combination of c (or java) and a parser-generator like Yacc or Bison.The process of implementing a language isn't really about breaking out an editor and a compiler and coding. Rather, language implementing about specifying a virtual machine, a grammar and various other meta-programming constructs. Thus "written in c" can a deceptive description.Even a recursive-descent parser involves a process of transforming a syntax specification into a series of recursive function calls.