fix #25 : character issues on CRAN

Author: Florian Schneider

R/data.R

@@ -142,7 +142,7 @@ NULL
 #'
 #' @details Trait-based approaches have increased significantly in community
 #'   ecology during the last decade. This is not least because studies on
-#'   biodiversity–ecosystem functioning relationships became a major topic in
+#'   biodiversity-ecosystem functioning relationships became a major topic in
 #'   ecology. Species' functions in ecosystems are mediated by their traits. For
 #'   a better understanding of the relationships between environmental drivers,
 #'   the community composition of organisms and ecosystems functioning, it is
@@ -179,7 +179,7 @@ NULL
 #'  
 #' -  Gossner, M. M., N. K. Simons, L. Höck, and W. W. Weisser. 2015.
 #' Morphometric measures of Heteroptera sampled in grasslands across three
-#' regions of Germany. Ecology 96:1154–1154.
+#' regions of Germany. Ecology 96:1154-1154.
 #' - Data publication: Gossner, M.M, Simons, N.K., Höck, L., Weisser, W.W.,
 #' 2016. Morphometric measures of Heteroptera sampled in grasslands across three
 #' regions of Germany. figshare.
@@ -314,7 +314,7 @@ NULL
 #' 
 #' @name mammaldiet
 #' @description A comprehensive global dataset of diet preferences of mammals 
-#'   (‘MammalDIET’). Diet information was digitized from the literature and 
+#'   ('MammalDIET'). Diet information was digitized from the literature and 
 #'   extrapolated for species with missing information. The original and 
 #'   extrapolated data cover species-level diet information for >99% of all 
 #'   terrestrial mammals.
@@ -324,7 +324,7 @@ NULL
 #'   - Kissling, W.D., Dalby, L., Fløjgaard, C., Lenoir, J., Sandel, B., Sandom,
 #'   C., Trøjelsgaard, K., Svenning, J. (2014). Establishing macroecological 
 #'   trait datasets: digitalization, extrapolation, and validation of diet 
-#'   preferences in terrestrial mammals worldwide. Ecol Evol, 4, 2913–2930. 
+#'   preferences in terrestrial mammals worldwide. Ecol Evol, 4, 2913-2930. 
 #'   \url{http://onlinelibrary.wiley.com/doi/10.1002/ece3.1136/}
 #'   
 #'   Additionally, please cite the Dryad data package:

R/utils.R

@@ -8,7 +8,7 @@
 #' @param dec the character used in the file for decimal points.
 #' @param na.strings a character vector of strings which are to be interpreted as NA values. Blank fields are also considered to be missing values in logical, integer, numeric and complex fields.
 #' @param fill logical. If TRUE then in case the rows have unequal length, blank fields are implicitly added. See 'Details' of `?read.table`.
-#' @param sep the field separator character. Values on each line of the file are separated by this character. If sep = "" (the default for read.table) the separator is ‘white space’, that is one or more spaces, tabs, newlines or carriage returns.
+#' @param sep the field separator character. Values on each line of the file are separated by this character. If sep = "" (the default for read.table) the separator is 'white space', that is one or more spaces, tabs, newlines or carriage returns.
 #' @param quote the set of quoting characters. To disable quoting altogether, use quote = "". See scan for the behaviour on quotes embedded in quotes. Quoting is only considered for columns read as character, which is all of them unless colClasses is specified.
 #' @param fileEncoding character string: if non-empty declares the encoding to be used on a file (not a connection) so the character data can be re-encoded as they are written. See [base::connections()].
 #' 

README.md

@@ -1,7 +1,7 @@
 # Package 'traitdataform': Formatting and Harmonizing Ecological Trait-Data 
 
 [![lifecycle](https://img.shields.io/badge/lifecycle-stable-brightgreen.svg)](https://www.tidyverse.org/lifecycle/#stable) 
-[![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
+[![Project Status: Active - The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
 [![Build Status](https://travis-ci.com/EcologicalTraitData/traitdataform.svg?branch=master)](https://travis-ci.com/EcologicalTraitData/traitdataform)
 [![CRAN status](https://www.r-pkg.org/badges/version/traitdataform)](https://cran.r-project.org/package=traitdataform)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1489527.svg)](https://doi.org/10.5281/zenodo.1489527)