Reexport tidy eval tools

Author: lionel-

DESCRIPTION

@@ -232,6 +232,7 @@ Collate:
     'utilities-matrix.r'
     'utilities-resolution.r'
     'utilities-table.r'
+    'utilities-tidy-eval.R'
     'zxx.r'
     'zzz.r'
 VignetteBuilder: knitr

NAMESPACE

@@ -114,6 +114,7 @@ S3method(widthDetails,titleGrob)
 S3method(widthDetails,zeroGrob)
 export("%+%")
 export("%+replace%")
+export(.data)
 export(.pt)
 export(.stroke)
 export(AxisSecondary)
@@ -275,8 +276,16 @@ export(element_grob)
 export(element_line)
 export(element_rect)
 export(element_text)
+export(enexpr)
+export(enexprs)
+export(enquo)
+export(enquos)
+export(ensym)
+export(ensyms)
 export(expand_limits)
 export(expand_scale)
+export(expr)
+export(exprs)
 export(facet_grid)
 export(facet_null)
 export(facet_wrap)
@@ -383,6 +392,9 @@ export(position_nudge)
 export(position_stack)
 export(qplot)
 export(quickplot)
+export(quo)
+export(quo_name)
+export(quos)
 export(rel)
 export(remove_missing)
 export(render_axes)
@@ -514,6 +526,8 @@ export(stat_ydensity)
 export(summarise_coord)
 export(summarise_layers)
 export(summarise_layout)
+export(sym)
+export(syms)
 export(theme)
 export(theme_bw)
 export(theme_classic)
@@ -547,6 +561,20 @@ import(scales)
 importFrom(lazyeval,f_eval)
 importFrom(plyr,as.quoted)
 importFrom(plyr,defaults)
+importFrom(rlang,.data)
+importFrom(rlang,enexpr)
+importFrom(rlang,enexprs)
+importFrom(rlang,enquo)
+importFrom(rlang,enquos)
+importFrom(rlang,ensym)
+importFrom(rlang,ensyms)
+importFrom(rlang,expr)
+importFrom(rlang,exprs)
+importFrom(rlang,quo)
+importFrom(rlang,quo_name)
+importFrom(rlang,quos)
+importFrom(rlang,sym)
+importFrom(rlang,syms)
 importFrom(stats,setNames)
 importFrom(tibble,tibble)
 importFrom(utils,.DollarNames)

R/utilities-tidy-eval.R

@@ -0,0 +1,39 @@
+#' Tidy eval helpers
+#'
+#' @description
+#'
+#' * \code{\link[rlang]{sym}()} creates a symbol from a string and
+#'   \code{\link[rlang]{syms}()} creates a list of symbols from a
+#'   character vector.
+#'
+#' * \code{\link[rlang]{expr}()} and \code{\link[rlang]{quo}()} quote
+#'   one expression. `quo()` wraps the quoted expression in a quosure.
+#'
+#'   The plural variants \code{\link[rlang]{exprs}()} and
+#'   \code{\link[rlang]{quos}()} return a list of quoted expressions or
+#'   quosures.
+#'
+#' * \code{\link[rlang]{enexpr}()} and \code{\link[rlang]{enquo}()}
+#'   capture the expression supplied as argument by the user of the
+#'   current function (`enquo()` wraps this expression in a quosure).
+#'
+#'   \code{\link[rlang]{enexprs}()} and \code{\link[rlang]{enquos}()}
+#'   capture multiple expressions supplied as arguments, including
+#'   `...`.
+#'
+#' @md
+#' @name tidyeval
+#' @keywords internal
+#' @aliases          quo quos enquo enquos quo_name
+#'                   sym ensym syms ensyms
+#'                   expr exprs enexpr enexprs
+#'                   .data
+#' @export           quo quos enquo enquos quo_name
+#' @export           sym ensym syms ensyms
+#' @export           expr exprs enexpr enexprs
+#' @export           .data
+NULL
+
+#' @importFrom rlang quo quos enquo enquos quo_name sym ensym syms
+#'   ensyms expr exprs enexpr enexprs .data
+NULL