X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Ftex2lyx%2FParser.cpp;h=69e3460f459de17c1ccc6f15b564eeac8589af69;hb=3f72a026cc26e8e8dfdd306a62fd174b51dd59c4;hp=d87ff29546518c39322fe750ce84af98a0f7599f;hpb=683050d4f9a2e9476ccf2313f8f72eb99fcf4a87;p=lyx.git

diff --git a/src/tex2lyx/Parser.cpp b/src/tex2lyx/Parser.cpp
index d87ff29546..69e3460f45 100644
--- a/src/tex2lyx/Parser.cpp
+++ b/src/tex2lyx/Parser.cpp
@@ -118,14 +118,9 @@ void debugToken(std::ostream & os, Token const & t, unsigned int flags)
 // Wrapper
 //
 
-bool iparserdocstream::setEncoding(std::string const & e)
+void iparserdocstream::setEncoding(std::string const & e)
 {
 	is_ << lyx::setEncoding(e);
-	if (s_.empty())
-		return true;
-	cerr << "Setting encoding " << e << " too late. The encoding of `"
-	     << to_utf8(s_) << "´ is wrong." << std::endl;
-	return false;
 }
 
 
@@ -159,10 +154,14 @@ iparserdocstream & iparserdocstream::get(char_type &c)
 //
 
 
-Parser::Parser(idocstream & is)
-	: lineno_(0), pos_(0), iss_(0), is_(is), encoding_iconv_("UTF-8"),
-	  theCatcodesType_(NORMAL_CATCODES), curr_cat_(UNDECIDED_CATCODES)
+Parser::Parser(idocstream & is, std::string const & fixedenc)
+	: lineno_(0), pos_(0), iss_(0), is_(is),
+	  encoding_iconv_(fixedenc.empty() ? "UTF-8" : fixedenc),
+	  theCatcodesType_(NORMAL_CATCODES), curr_cat_(UNDECIDED_CATCODES),
+	  fixed_enc_(!fixedenc.empty())
 {
+	if (fixed_enc_)
+		is_.setEncoding(fixedenc);
 }
 
 
@@ -170,7 +169,9 @@ Parser::Parser(string const & s)
 	: lineno_(0), pos_(0),
 	  iss_(new idocstringstream(from_utf8(s))), is_(*iss_),
 	  encoding_iconv_("UTF-8"),
-	  theCatcodesType_(NORMAL_CATCODES), curr_cat_(UNDECIDED_CATCODES)
+	  theCatcodesType_(NORMAL_CATCODES), curr_cat_(UNDECIDED_CATCODES),
+	  // An idocstringstream can not change the encoding
+	  fixed_enc_(true)
 {
 }
 
@@ -266,7 +267,13 @@ bool Parser::setEncoding(std::string const & e)
 {
 	//cerr << "setting encoding to " << e << std::endl;
 	encoding_iconv_ = e;
-	return is_.setEncoding(e);
+	// If the encoding is fixed, we must not change the stream encoding
+	// (because the whole input uses that encoding, e.g. if it comes from
+	// the clipboard). We still need to track the original encoding in
+	// encoding_iconv_, so that the generated output is correct.
+	if (!fixed_enc_)
+		is_.setEncoding(e);
+	return true;
 }
 
 
@@ -312,11 +319,10 @@ Token const Parser::next_next_token()
 		return dummy;
 	// If tokenize_one() has not been called after the last get_token() we
 	// need to tokenize two more tokens.
-	if (pos_ >= tokens_.size()) {
+	if (pos_ >= tokens_.size())
+		tokenize_one();
+	if (pos_ + 1 >= tokens_.size())
 		tokenize_one();
-		if (pos_ + 1 >= tokens_.size())
-			tokenize_one();
-	}
 	return pos_ + 1 < tokens_.size() ? tokens_[pos_ + 1] : dummy;
 }
 
@@ -631,11 +637,12 @@ string const Parser::plainCommand(char left, char right, string const & name)
 }
 
 
-string const Parser::verbatimStuff(string const & end_string)
+Parser::Arg Parser::verbatimStuff(string const & end_string, bool const allow_linebreak)
 {
 	if (!good())
-		return string();
+		return Arg(false, string());
 
+	pushPosition();
 	ostringstream oss;
 	size_t match_index = 0;
 	setCatcodes(VERBATIM_CATCODES);
@@ -646,22 +653,38 @@ string const Parser::verbatimStuff(string const & end_string)
 			match_index += t.asInput().length();
 			if (match_index >= end_string.length())
 				break;
-		} else if (match_index) {
-			oss << end_string.substr(0, match_index) << t.asInput();
-			match_index = 0;
-		} else
-			oss << t.asInput();
+		} else {
+			if (!allow_linebreak && t.asInput() == "\n") {
+				cerr << "unexpected end of input" << endl;
+				popPosition();
+				setCatcodes(NORMAL_CATCODES);
+				return Arg(false, string());
+			}
+			if (match_index) {
+				oss << end_string.substr(0, match_index) 
+				    << t.asInput();
+				match_index = 0;
+			} else
+				oss << t.asInput();
+		}
 	}
-	setCatcodes(NORMAL_CATCODES);
-	if (!good())
+
+	if (!good()) {
 		cerr << "unexpected end of input" << endl;
-	return oss.str();
+		popPosition();
+		setCatcodes(NORMAL_CATCODES);
+		return Arg(false, string());
+	}
+	setCatcodes(NORMAL_CATCODES);
+	dropPosition();
+	return Arg(true, oss.str());
 }
 
 
 string const Parser::verbatimEnvironment(string const & name)
 {
-	string s = verbatimStuff("\\end{" + name + "}");
+	//FIXME: do something if endstring is not found
+	string s = verbatimStuff("\\end{" + name + "}").second;
 	// ignore one newline at beginning or end of string
 	if (prefixIs(s, "\n"))
 		s.erase(0,1);
@@ -681,7 +704,7 @@ string Parser::verbatimOption()
 				putback();
 				res += '{' + verbatim_item() + '}';
 			} else
-				res += t.cs();
+				res += t.asInput();
 		}
 	}
 	return res;