consolidate other PR here

Author: drizk1

src/TidierFiles.jl

@@ -413,6 +413,8 @@ function write_csv(
     file::String;
     missing_value::String = "",
     append::Bool = false,
+    delim = ",",
+    decimal = ".",
     col_names::Bool = true,
     eol::String = "\n",
     num_threads::Int = Threads.nthreads())
@@ -423,6 +425,8 @@ function write_csv(
         x,
         append = append,
         header = col_names && !append,
+        delim = delim,
+        decimal = decimal,
         missingstring = missing_value,
         newline = eol,
         threaded = num_threads > 1    )

src/docstrings.jl

@@ -199,6 +199,8 @@ Write a DataFrame to a CSV (comma-separated values) file.
 - `x`: The DataFrame to write to the CSV file.
 - `file`: The path to the output CSV file.
 - `missing_value`: = "": The string to represent missing values in the output file. Default is an empty string.
+- `delim`: delimiter for file. can be a character or string. default `,` 
+- `decimal`: decimal for file. supports characters only. default `.` 
 - `append`: Whether to append to the file if it already exists. Default is false.
 - `col_names`: = true: Whether to write column names as the first line of the file. Default is true.
 - `eol`: The end-of-line character to use in the output file. Default is the newline character.