lexer.props.allow.initial.spaces patch from Enrico Tröger allows styling

of RFC2822 text with the props lexer.

1 files changed, 14 insertions, 5 deletions

diff --git a/src/LexOthers.cxx b/src/LexOthers.cxx
index 6f500a06e..f5382bfdc 100644
--- a/src/LexOthers.cxx
+++ b/src/LexOthers.cxx
@@ -649,11 +649,18 @@ static void ColourisePropsLine(
     unsigned int lengthLine,
     unsigned int startLine,
     unsigned int endPos,
-    Accessor &styler) {
+    Accessor &styler,
+    bool allowInitialSpaces) {
 
 	unsigned int i = 0;
-	while ((i < lengthLine) && isspacechar(lineBuffer[i]))	// Skip initial spaces
-		i++;
+	if (allowInitialSpaces) {
+		while ((i < lengthLine) && isspacechar(lineBuffer[i]))	// Skip initial spaces
+			i++;
+	} else {
+		if (isspacechar(lineBuffer[i])) // don't allow initial spaces
+			i = lengthLine;
+	}
+
 	if (i < lengthLine) {
 		if (lineBuffer[i] == '#' || lineBuffer[i] == '!' || lineBuffer[i] == ';') {
 			styler.ColourTo(endPos, SCE_PROPS_COMMENT);
@@ -687,18 +694,20 @@ static void ColourisePropsDoc(unsigned int startPos, int length, int, WordList *
 	styler.StartSegment(startPos);
 	unsigned int linePos = 0;
 	unsigned int startLine = startPos;
+	bool allowInitialSpaces = styler.GetPropertyInt("lexer.props.allow.initial.spaces", 1) != 0;
+
 	for (unsigned int i = startPos; i < startPos + length; i++) {
 		lineBuffer[linePos++] = styler[i];
 		if (AtEOL(styler, i) || (linePos >= sizeof(lineBuffer) - 1)) {
 			// End of line (or of line buffer) met, colourise it
 			lineBuffer[linePos] = '\0';
-			ColourisePropsLine(lineBuffer, linePos, startLine, i, styler);
+			ColourisePropsLine(lineBuffer, linePos, startLine, i, styler, allowInitialSpaces);
 			linePos = 0;
 			startLine = i + 1;
 		}
 	}
 	if (linePos > 0) {	// Last line does not have ending characters
-		ColourisePropsLine(lineBuffer, linePos, startLine, startPos + length - 1, styler);
+		ColourisePropsLine(lineBuffer, linePos, startLine, startPos + length - 1, styler, allowInitialSpaces);
 	}
 }