Made readLineIntern() return a zero-length string when no printable text is read out of a script. This makes life easier for the parser, and also makes the introduction fully viewable.

svn-id: r35233

1 files changed, 13 insertions, 3 deletions

diff --git a/engines/parallaction/parser.cpp b/engines/parallaction/parser.cpp
index f4d5df99ab..2ad65abf20 100644
--- a/engines/parallaction/parser.cpp
+++ b/engines/parallaction/parser.cpp
@@ -40,9 +40,16 @@ Script::~Script() {
 		delete _input;
 }
 
+/*
+ * readLineIntern read a text line and prepares it for
+ * parsing, by stripping the leading whitespace and
+ * changing tabs to spaces. It will stop on a CR or LF,
+ * and return an empty string (length = 0) when a line
+ * has no printable text in it.
+ */
 char *Script::readLineIntern(char *buf, size_t bufSize) {
-	uint16 i;
-	for (i = 0; i < bufSize; i++) {
+	uint i = 0;
+	for ( ; i < bufSize; ) {
 		char c = _input->readSByte();
 		if (_input->eos())
 			break;
@@ -51,7 +58,10 @@ char *Script::readLineIntern(char *buf, size_t bufSize) {
 		if (c == '\t')
 			c = ' ';
 
-		buf[i] = c;
+		if ((c != ' ') || (i > 0)) {
+			buf[i] = c;
+			i++;
+		}
 	}
 	_line++;
 	if (i == bufSize) {