From 47bd3d8e3c8d18ab0c80e94cade117610169207b Mon Sep 17 00:00:00 2001
From: Dilan Tharaka <tharakamd.12@cse.mrt.ac.lk>
Date: Thu, 8 Apr 2021 11:12:44 +0530
Subject: [PATCH] add whitespace separators

---
 docs/csv_to_csv.md                                  |  3 ++-
 docs/csv_to_json.md                                 |  3 ++-
 docs/csv_to_xml.md                                  |  3 ++-
 .../wso2/carbon/module/csv/util/PropertyReader.java | 13 ++++++++++++-
 4 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/docs/csv_to_csv.md b/docs/csv_to_csv.md
index cdb3c72..24f08a1 100644
--- a/docs/csv_to_csv.md
+++ b/docs/csv_to_csv.md
@@ -13,7 +13,8 @@ To transform a CSV payload to another CSV payload in a different format you can
 Specify whether the CSV input has a header row. This accepts **Absent** or **Present** as values. The Default value
  is **Absent**.   
 * valueSeparator (Separator):   
-Specify the separator to use in the CSV input. Default is the `,` (comma).  
+Specify the separator to use in the CSV input. Default is the `,` (comma). To use tab as the separator, use the 
+  value `tab` to this property. To use space, use the value `space`.  
 * skipHeader (Skip Headers): Skip the header row or not in the output CSV.   
 This property accepts **true** or **false** as values. The Default is false. This is available only if the value of
  the `headerPresent` property is set to `Present`.  
diff --git a/docs/csv_to_json.md b/docs/csv_to_json.md
index 54ec23e..f6bba0b 100644
--- a/docs/csv_to_json.md
+++ b/docs/csv_to_json.md
@@ -13,7 +13,8 @@ You can use the csvToJson operation to transform a CSV payload in to a JSON payl
 Specify whether the CSV input has a header row. This accepts **Absent** or **Present** as values. The Default value
  is **Absent**.   
 * valueSeparator (Separator):   
-Specify the separator to use in the CSV input. Default is the `,` (comma).  
+Specify the separator to use in the CSV input. Default is the `,` (comma).  To use tab as the separator, use the
+  value `tab` to this property. To use space, use the value `space`. 
 This property accepts **true** or **false** as values. The Default is false. This is available only if the value of
  the `headerPresent` property is set to `Present`.
 * columnsToSkip (Skip Columns):   
diff --git a/docs/csv_to_xml.md b/docs/csv_to_xml.md
index 8ca649d..b3d838a 100644
--- a/docs/csv_to_xml.md
+++ b/docs/csv_to_xml.md
@@ -13,7 +13,8 @@ You can use the csvToXml operation to transform a CSV payload in to an XML paylo
 Specify whether the CSV input has a header row. This accepts **Absent** or **Present** as values.    The Default
  value is **Absent**.   
 * valueSeparator (Separator):   
-Specify the separator to use in the CSV input. Default is the `,` (comma).  
+Specify the separator to use in the CSV input. Default is the `,` (comma). To use tab as the separator, use the
+  value `tab` to this property. To use space, use the value `space`.  
 * skipHeader (Skip Headers): Skip the header row or not in the output CSV.   
 This property accepts **true** or **false** as values. The Default is false. This is available only if the value of
  the `headerPresent` property is set to `Present`.
diff --git a/src/main/java/org/wso2/carbon/module/csv/util/PropertyReader.java b/src/main/java/org/wso2/carbon/module/csv/util/PropertyReader.java
index d920688..dd3591e 100644
--- a/src/main/java/org/wso2/carbon/module/csv/util/PropertyReader.java
+++ b/src/main/java/org/wso2/carbon/module/csv/util/PropertyReader.java
@@ -70,7 +70,18 @@ public static Optional<String> getStringParam(SimpleMessageContext mc, String pa
     public static Optional<Character> getCharParam(SimpleMessageContext mc, String parameterKey) {
 
         Optional<String> parameterValue = getStringParam(mc, parameterKey);
-        return parameterValue.map(s -> s.charAt(0));
+        return parameterValue.map(PropertyReader::replaceWhitespaces);
+    }
+
+    private static Character replaceWhitespaces(String text) {
+
+        if (text.equals("tab")) {
+            return 9;
+        } else if (text.equals("space")) {
+            return 32;
+        } else {
+            return text.charAt(0);
+        }
     }
 
     /**