translate one language to another? -

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is possible translate 1 language interpreter?

heard quercus translate php java? @ first, thought cheap lousy solution give code errors, seems it´s possible so.

could translate php other languages, python or ruby? c++ java , on?

translating 1 language special case class of programs called compilers, interpreters , translators.

this class of program take stream of input symbols ("source code") can usually described formal grammar , output stream of symbols.

that output stream of symbols can be:

  • native assembly code, operating system , hardware machine running on. if so, program referred compiler;
  • native assembly code different os and/or hardware. can called compiler referred cross-compiler;
  • to intermediate form can executed virtual machine of kind. isn't true compiler called compiler anyway. java, c#, f#, vb.net, etc "compilers" fall category;
  • to language entirely. called translator , there examples of, say, java c# translators. typically have varying degrees of success because idioms aren't readily translatable;
  • interpreters follow same principle typically execute processed form in-place rather saving somewhere. perl, php , shell scripts fall category. php example store opcodes in opcode cache intermediate form (if opcoding caching enabled) intermediate form isn't stored it's still safe call php interpreter.

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