rstudio/rstudio — pull request #254 by kevinushey (2014-12-15 21:04:40+00:00)
Title: Consolidate token cursor functionality

Previously, there was a split in the token cursors -- an internal version was defined for the R code model, and a separate set was defined for the C++ code model. This PR unifies the implementations by moving the relevant logic from the token cursor defined in the R code model into the 'base' token cursor class, and uses that.