Document isWhitespace().
diff --git a/lib/src/usage.dart b/lib/src/usage.dart
index 1135bb5..a9ca72f 100644
--- a/lib/src/usage.dart
+++ b/lib/src/usage.dart
@@ -194,7 +194,7 @@
var currentLineStart = 0;
int lastWhitespace;
for (var i = 0; i < text.length; ++i) {
- if (isWhitespace(text, i)) lastWhitespace = i;
+ if (_isWhitespace(text, i)) lastWhitespace = i;
if (i - currentLineStart >= length) {
// Back up to the last whitespace, unless there wasn't any, in which
@@ -204,7 +204,7 @@
result.add(text.substring(currentLineStart, i));
// Skip any intervening whitespace.
- while (isWhitespace(text, i) && i < text.length) i++;
+ while (_isWhitespace(text, i) && i < text.length) i++;
currentLineStart = i;
lastWhitespace = null;
@@ -307,8 +307,12 @@
}
}
-bool isWhitespace(String text, int index) {
- final int rune = text.codeUnitAt(index);
+/// Returns true if the code unit at [index] in [text] is a whitespace
+/// character.
+///
+/// Based on: https://en.wikipedia.org/wiki/Whitespace_character#Unicode
+bool _isWhitespace(String text, int index) {
+ var rune = text.codeUnitAt(index);
return rune >= 0x0009 && rune <= 0x000D ||
rune == 0x0020 ||
rune == 0x0085 ||
