US Patent 7675527 Multisource composable projection of text

Embodiments consistent with the subject matter of this disclosure may transparently project text fragments from one or more buffers into one or more projection buffers by reference, instead of by copying. Clients or applications, such as, for example, compilers, language services, an editor's rendering system, or other client or application, may transparently process the projected text fragments projected into the projection buffers as if processing simple text files. In some embodiments, text of a first language, embedded in a document having text of one or more other languages, may be projected to a projection buffer and provided to an application, which may process text of the first language. In other embodiments, text may be elided from a document by projecting to a projection buffer only text not to be elided from the document.