Changes in version 1.1.0.9000                      

                 Changes in version 1.1.0 (2016-07-27)                  

Rebooting to support parsing of spreadsheet formulas and cell references
as they appear in unevaluated expressions. This work is still in
progress but a CRAN update is required now to update a test for testthat
v1.0.x.

Package is beginning to implement classes and methods related to cell
location and reference from 'Spreadsheet Implementation Technology' by
Peter Sestoft, MIT Press, 2014.

New classes:

  - cell_addr: one or more absolute cell addresses
  - ra_ref: single absolute, relative, or mixed cell reference

                 Changes in version 1.0.0 (2015-06-20)                  

  - The two components of a cell_limits object now correspond NOT to row
    and column limits, but rather to the upper left and lower right
    cells of the rectangle. See #6. It was too confusing to have
    different conventions for the object and its print method.
    
      - If the maximum row or column is specified, but the minimum is
        not, then we automatically set the associated minimum to 1,
        instead of leaving as NA.
    
      - The header argument of anchored() has been renamed to col_names,
        for greater consistency with readr, readxl, and googlesheets.
    
      - Added a NULL method for as.cell_limits generic so that
        as.cell_limits(NULL) returns default, degenerate cell limits,
        i.e. the min and max for rows and columns are uniformly NA.
    
      - A cell_limits object now inherits from "list".

                 Changes in version 0.1.0 (2015-04-22)                  

  - Initial CRAN release