fix: if inside string ignore text-delimiters

CHANGELOG.md

@@ -1,3 +1,8 @@
+# 6.0.0
+If inside an unquoted string, text-delimiters are ignored instead of swallowed.  
+This (partially?) fixes issue #70.  
+Example: `"A B", "C, D"` will now produce `[["A B",' "C',' D"']]` instead of `[["A B",' C',' D']]`.
+
 # 5.1.1
 Fix warnings.  (Thanks https://github.com/thumbert for the bug report)
 

lib/src/csv_parser.dart

@@ -89,7 +89,7 @@ part 'csv_argument_errors.dart';
 //
 // We have a counter for every delimiter.  Before adding a character _c_ to the
 // StringBuffer which represents the current field, we find out if _c_ is part
-// a delimiter.
+// of a delimiter.
 // Assume all counters are 0 (the start condition).  If any delimiter starts
 // with _c_ we increment the corresponding counter:
 // if (delim[delimCounter] == _c_) delimCounter++;
@@ -199,7 +199,8 @@ class CsvParser {
   /// non 0 counter and take a substring of the corresponding string.
   late StringBuffer _matchedChars;
 
-  /// If [allowInvalid] is true we only use the user supplied value if it isn't null.
+  /// If [allowInvalid] is true we only use the user supplied value if it isn't
+  /// null.
   static String? _argValue(
       bool? allowInvalid, String? userValue, String defaultValue,
       {String? userValue2}) {
@@ -297,10 +298,10 @@ class CsvParser {
     final onlyTextEndDelimiterMatches =
         _insideQuotedString && !_previousWasTextEndDelimiter;
 
-    // never look for a start text delimiter inside a quoted string.
+    // never look for a start text delimiter inside a string.
     // (even if _previousWasTextEndDelimiter)
     final matchTextDelimiters =
-        !_insideQuotedString && (!matching || _matchingTextDelimiter > 0);
+        !_insideString && (!matching || _matchingTextDelimiter > 0);
 
     final matchTextEndDelimiters =
         _insideQuotedString && (!matching || _matchingTextEndDelimiter > 0);

pubspec.yaml

@@ -1,5 +1,5 @@
 name: csv
-version: 5.1.1
+version: 6.0.0
 description: |-
   A codec to transform between a string and a list of values.
 

test/csv_to_list_test.dart

@@ -601,4 +601,16 @@ void main_converter() {
           ['', 'faa4aag', 'haa5.6']
         ]));
   });
+
+  test('Issue #70', () {
+    final input = '"A B", "C, D"\r\n';
+    final parsed = CsvToListConverter().convert(input);
+    expect(parsed, equals([["A B",' "C',' D"']]));
+  });
+
+  test('Quotes inside', () {
+    final input = 'A"B,C"D';
+    final parsed = CsvToListConverter().convert(input);
+    expect(parsed, equals([['A"B', 'C"D']]));
+  });
 }