disable non-ASCII paths

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: traudem
 Title: Use TauDEM
-Version: 1.0.2
+Version: 1.0.3
 Authors@R: c(
     person("Luca", "Carraro", , "[email protected]", role = c("cre", "aut")),
     person("University of Zurich", role = c("cph", "fnd")),

NEWS.md

@@ -1,3 +1,7 @@
+# traudem 1.0.3
+
+* An error is thrown if path files containing non-ASCII characters are used.
+
 # traudem 1.0.2
 
 * Updated documentation on workflow to install `traudem` in macOS and Linux.

R/aread8.R

@@ -62,6 +62,11 @@ taudem_aread8 <- function(input_d8flowdir_grid,
     rlang::abort("outlet_layer_name and outlet_layer_number must not both be specified.")
   }
 
+  if (grepl("[^ -~]", input_d8flowdir_grid) | grepl("[^ -~]", output_contributing_area_grid)){
+    rlang::abort("The path file and/or the working directory contain(s) non-ASCII
+                 characters, which are not supported by MPI.")
+  }
+
   args <- c(
     "-p", input_d8flowdir_grid,
     "-ad8", output_contributing_area_grid

R/d8flowdir.R

@@ -45,6 +45,11 @@ taudem_d8flowdir <- function(input_elevation_grid,
     output_d8slopes_grid <- sprintf("%s.tif", output_d8slopes_grid_file)
   }
 
+  if (grepl("[^ -~]", input_elevation_grid) | grepl("[^ -~]", output_d8flowdir_grid)){
+    rlang::abort("The path file and/or the working directory contain(s) non-ASCII
+                 characters, which are not supported by MPI.")
+  }
+
   args <- c(
     "-fel", input_elevation_grid,
     "-p", output_d8flowdir_grid,

R/moveoutletstostrm.R

@@ -58,6 +58,12 @@ taudem_moveoutletstostream <- function(input_d8flowdir_grid,
     "moveoutletstostrm"
   }
 
+  if (grepl("[^ -~]", input_d8flowdir_grid) | grepl("[^ -~]", input_stream_raster_grid) |
+      grepl("[^ -~]",output_moved_outlets_file)){
+    rlang::abort("The path file and/or the working directory contain(s) non-ASCII
+                 characters, which are not supported by MPI.")
+  }
+
   args <- c(
     "-p", input_d8flowdir_grid,
     "-src", input_stream_raster_grid,

R/pitremove.R

@@ -42,6 +42,11 @@ taudem_pitremove <- function(input_elevation_grid,
     rlang::abort(sprintf("Can't find file %s (depmask)", depmask))
   }
 
+  if (grepl("[^ -~]", input_elevation_grid) | grepl("[^ -~]", output_elevation_grid)){
+    rlang::abort("The path file and/or the working directory contain(s) non-ASCII
+                 characters, which are not supported by MPI.")
+  }
+
   args <- c(
     "-z", input_elevation_grid,
     "-fel", output_elevation_grid

R/threshold.R

@@ -48,6 +48,11 @@ taudem_threshold <- function(input_area_grid,
     rlang::abort(sprintf("Can't find file %s (mask_file)", mask_file))
   }
 
+  if (grepl("[^ -~]", input_area_grid) | grepl("[^ -~]", output_stream_raster_grid)){
+    rlang::abort("The path file and/or the working directory contain(s) non-ASCII
+                 characters, which are not supported by MPI.")
+  }
+
   args <- c(
     "-ssa", input_area_grid,
     "-src", output_stream_raster_grid,