add CharClassifier::GetCharsOfClass

add SCI_GETWORDCHARS(<unused>, stringresult chars) command to get word chars
add SCI_GETWHITESPACECHARS(<unused>, stringresult chars) to get whitespace chars
add SCI_GETPUNCTUATIONCHARS(<unused>, stringresult chars) to get punctutation
also add tests for {Set,Get}{Word,Whitespce,Punctuation}Chars, CharClassifier

1 files changed, 16 insertions, 0 deletions

diff --git a/src/CharClassify.cxx b/src/CharClassify.cxx
index c16af4547..7e3db737e 100644
--- a/src/CharClassify.cxx
+++ b/src/CharClassify.cxx
@@ -46,3 +46,19 @@ void CharClassify::SetCharClasses(const unsigned char *chars, cc newCharClass) {
 		}
 	}
 }
+
+int CharClassify::GetCharsOfClass(cc characterClass, unsigned char *buffer) {
+	// Get characters belonging to the given char class; return the number
+	// of characters (if the buffer is NULL, don't write to it).
+	int count = 0;
+	for (int ch = maxChar - 1; ch >= 0; --ch) {
+		if (charClass[ch] == characterClass) {
+			++count;
+			if (buffer) {
+				*buffer = static_cast<unsigned char>(ch);
+				buffer++;
+			}
+		}
+	}
+	return count;
+}