X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Flyxlex.C;h=afda6e35ebf616a77a9bfe2911950278290a5e4f;hb=69bee02a8901793b34ac5ca6d07e93910cef4005;hp=c590c74c534c5a568fda0d2a23785e945ccd4bd3;hpb=e25012ddfad9b27467bb1af49f3e6bfcd863b408;p=lyx.git

diff --git a/src/lyxlex.C b/src/lyxlex.C
index c590c74c53..afda6e35eb 100644
--- a/src/lyxlex.C
+++ b/src/lyxlex.C
@@ -1,26 +1,39 @@
 /**
  * \file lyxlex.C
- * Copyright 1996-2002 the LyX Team
- * Read the file COPYING
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
- * Generalized simple lexical analyzer.
- * It can be used for simple syntax parsers, like lyxrc,
- * texclass and others to come.
+ * \author Alejandro Aguilar Sierra
+ * \author Lars Gullik Bjønnes
+ * \author Jean-Marc Lasgouttes
+ * \author John Levon
  *
- * \author Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
+ * Full author contact details are available in file CREDITS.
  */
 
 #include <config.h>
 
 #include "lyxlex.h"
-#include "lyxlex_pimpl.h"
+
 #include "debug.h"
-#include "support/filetools.h"
+#include "lyxlex_pimpl.h"
+
 #include "support/lstrings.h"
 
-using std::ostream;
-using std::istream;
+using lyx::support::compare_ascii_no_case;
+using lyx::support::isStrDbl;
+using lyx::support::isStrInt;
+using lyx::support::ltrim;
+using lyx::support::prefixIs;
+using lyx::support::strToDbl;
+using lyx::support::strToInt;
+using lyx::support::subst;
+using lyx::support::trim;
+
 using std::endl;
+using std::string;
+using std::istream;
+using std::ostream;
 
 
 LyXLex::LyXLex(keyword_item * tab, int num)
@@ -151,8 +164,7 @@ string const LyXLex::getLongString(string const & endtoken)
 		lyxerr[Debug::PARSER] << "LongString: `"
 				      << getString() << '\'' << endl;
 
-		// We do a case independent comparison, like search_kw
-		// does.
+		// We do a case independent comparison, like search_kw does.
 		if (compare_ascii_no_case(token, endtoken) == 0)
 			break;
 
@@ -188,7 +200,8 @@ bool LyXLex::getBool() const
 	if (pimpl_->getString() == "true") {
 		return true;
 	} else if (pimpl_->getString() != "false") {
-		pimpl_->printError("Bad boolean `$$Token'. Use \"false\" or \"true\"");
+		pimpl_->printError("Bad boolean `$$Token'. "
+				   "Use \"false\" or \"true\"");
 	}
 	return false;
 }
@@ -241,3 +254,70 @@ int LyXLex::findToken(char const * str[])
 
 	return i;
 }
+
+
+LyXLex::operator void const *() const
+{
+	// This behaviour is NOT the same as the std::streams which would
+	// use fail() here. However, our implementation of getString() et al.
+	// can cause the eof() and fail() bits to be set, even though we
+	// haven't tried to read 'em.
+	return pimpl_->is.bad() ? 0 : this;
+}
+
+
+bool LyXLex::operator!() const
+{
+	return pimpl_->is.bad();
+}
+
+
+LyXLex & LyXLex::operator>>(std::string & s)
+{
+	if (isOK()) {
+		next();
+		s = getString();
+	}
+	return *this;
+}
+
+
+LyXLex & LyXLex::operator>>(float & s)
+{
+	if (isOK()) {
+		next();
+		s = getFloat();
+	}
+	return *this;
+}
+
+
+LyXLex & LyXLex::operator>>(int & s)
+{
+	if (isOK()) {
+		next();
+		s = getInteger();
+	}
+	return *this;
+}
+
+
+LyXLex & LyXLex::operator>>(unsigned int & s)
+{
+	if (isOK()) {
+		next();
+		s = getInteger();
+	}
+	return *this;
+}
+
+
+LyXLex & LyXLex::operator>>(bool & s)
+{
+	if (isOK()) {
+		next();
+		s = getBool();
+	}
+	return *this;
+}
+