X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FLexer.cpp;h=e99875b28660286882eea04638e53b0848df2b3a;hb=0e8b1dc29a4d5acd01a0e6f4c12b1ccc5fb2c8da;hp=108d26ba2caacd77194429203808638eeb6e6bcf;hpb=adc9429855e3f14ff29f3c20c846095951ced331;p=lyx.git

diff --git a/src/Lexer.cpp b/src/Lexer.cpp
index 108d26ba2c..e99875b286 100644
--- a/src/Lexer.cpp
+++ b/src/Lexer.cpp
@@ -4,7 +4,7 @@
  * Licence details can be found in the file COPYING.
  *
  * \author Alejandro Aguilar Sierra
- * \author Lars Gullik Bjønnes
+ * \author Lars Gullik Bjønnes
  * \author Jean-Marc Lasgouttes
  * \author John Levon
  *
@@ -20,6 +20,7 @@
 #include "support/FileName.h"
 #include "support/filetools.h"
 #include "support/gzstream.h"
+#include "support/lassert.h"
 #include "support/lstrings.h"
 #include "support/lyxalgo.h"
 #include "support/types.h"
@@ -251,7 +252,8 @@ bool Lexer::Pimpl::setFile(FileName const & filename)
 		is.rdbuf(&gz_);
 		name = filename.absFilename();
 		lineno = 0;
-		return gz_.is_open() && is.good();
+		if (!gz_.is_open() || !is.good())
+			return false;
 	} else {
 		LYXERR(Debug::LYXLEX, "lyxlex: UNcompressed");
 
@@ -266,8 +268,21 @@ bool Lexer::Pimpl::setFile(FileName const & filename)
 		is.rdbuf(&fb_);
 		name = filename.absFilename();
 		lineno = 0;
-		return fb_.is_open() && is.good();
+		if (!fb_.is_open() || !is.good())
+			return false;
 	}
+
+	// Skip byte order mark.
+	if (is.peek() == 0xef) {
+		int c = is.get();
+		if (is.peek() == 0xbb) {
+			c = is.get();
+			LASSERT(is.get() == 0xbf, /**/);
+		} else
+			is.unget();
+	}
+
+	return true;
 }
 
 
@@ -499,7 +514,7 @@ bool Lexer::Pimpl::nextToken()
 		char cc = 0;
 		is.get(cc);
 		c = cc;
-		if (c >= ' ' && is) {
+		if ((c >= ' ' || c == '\t') && is) {
 			buff.clear();
 
 			if (c == '\\') { // first char == '\\'
@@ -513,7 +528,7 @@ bool Lexer::Pimpl::nextToken()
 					buff.push_back(c);
 					is.get(cc);
 					c = cc;
-				} while (c >= ' ' && c != '\\' && is);
+				} while ((c >= ' ' || c == '\t') && c != '\\' && is);
 			}
 
 			if (c == '\\')
@@ -901,6 +916,18 @@ string Lexer::quoteString(string const & arg)
 }
 
 
+// same for docstring
+docstring Lexer::quoteString(docstring const & arg)
+{
+	docstring res;
+	res += '"';
+	res += subst(subst(arg, from_ascii("\\"), from_ascii("\\\\")), 
+		     from_ascii("\""), from_ascii("\\\""));
+	res += '"';
+	return res;
+}
+
+
 Lexer & Lexer::operator>>(char const * required)
 {
 	string token;