Fix thinko in Buffer::makeLaTeXFile

* src/encoding.[Ch]
	(getEncoding): rename to getFromLyXName
	(getFromLaTeXName): new, it does what the name says

	* src/buffer.C
	(Buffer::makeLaTeXFile): Fix crash by using getFromLaTeXName instead
	of getFromLyXName.
	Avoid crash for unknown encodings.

	* src/language.C
	(Languages::read): Adjust to name change above


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@15703 a592a061-630c-0410-9148-cb99ea01b6c8

src/buffer.C

@@ -817,9 +817,20 @@ bool Buffer::makeLaTeXFile(string const & fname,
 			   OutputParams const & runparams,
 			   bool output_preamble, bool output_body)
 {
-	string const encoding = (params().inputenc == "auto") ?
-		params().language->encoding()->iconvName() :
-		encodings.getEncoding(params().inputenc)->iconvName();
+	string encoding;
+	if (params().inputenc == "auto")
+		encoding = params().language->encoding()->iconvName();
+	else {
+		Encoding const * enc = encodings.getFromLaTeXName(params().inputenc);
+		if (enc)
+			encoding = enc->iconvName();
+		else {
+			lyxerr << "Unknown inputenc value `"
+			       << params().inputenc
+			       << "'. Using `auto' instead." << endl;
+			encoding = params().language->encoding()->iconvName();
+		}
+	}
 	lyxerr[Debug::LATEX] << "makeLaTeXFile encoding: "
 		<< encoding << "..." << endl;
 

src/encoding.C

@@ -224,15 +224,45 @@ char_type Encodings::transformChar(char_type c,
 }
 
 
-Encoding const * Encodings::getEncoding(string const & encoding) const
+Encoding const * Encodings::getFromLyXName(string const & name) const
 {
-	EncodingList::const_iterator it = encodinglist.find(encoding);
+	EncodingList::const_iterator it = encodinglist.find(name);
 	if (it != encodinglist.end())
 		return &it->second;
 	else
 		return 0;
 }
 
+
+namespace {
+
+class LaTeXNamesEqual : public std::unary_function<std::pair<std::string, Encoding>, bool> {
+	public:
+		LaTeXNamesEqual(string const & LaTeXName)
+			: LaTeXName_(LaTeXName) {}
+		bool operator()(std::pair<std::string, Encoding> const & encoding) const
+		{
+			return encoding.second.latexName() == LaTeXName_;
+		}
+	private:
+		string LaTeXName_;
+};
+
+} // namespace anon
+
+
+Encoding const * Encodings::getFromLaTeXName(string const & name) const
+{
+	EncodingList::const_iterator const it =
+		std::find_if(encodinglist.begin(), encodinglist.end(),
+		             LaTeXNamesEqual(name));
+	if (it != encodinglist.end())
+		return &it->second;
+	else
+		return 0;
+}
+
+
 Encodings::Encodings()
 {
 	symbol_encoding_ = Encoding("symbol", "", "");

src/encoding.h

@@ -56,8 +56,10 @@ public:
 	Encodings();
 	///
 	void read(std::string const & filename);
-	///
-	Encoding const * getEncoding(std::string const & encoding) const;
+	/// Get encoding from LyX name \p name
+	Encoding const * getFromLyXName(std::string const & name) const;
+	/// Get encoding from LaTeX name \p name
+	Encoding const * getFromLaTeXName(std::string const & name) const;
 	///
 	Encoding const * symbol_encoding() { return &symbol_encoding_; }
 

src/language.C

@@ -39,7 +39,7 @@ void Languages::read(string const & filename)
 {
 	// We need to set the encoding of latex_lang
 	latex_lang = Language("latex", "latex", "Latex", false, "iso8859-1",
-			      encodings.getEncoding("iso8859-1"),
+			      encodings.getFromLyXName("iso8859-1"),
 			      "latex", "");
 
 	LyXLex lex(0, 0);
@@ -72,9 +72,9 @@ void Languages::read(string const & filename)
 		if (lex.next())
 			latex_options = lex.getString();
 
-		Encoding const * encoding = encodings.getEncoding(encoding_str);
+		Encoding const * encoding = encodings.getFromLyXName(encoding_str);
 		if (!encoding) {
-			encoding = encodings.getEncoding("iso8859-1");
+			encoding = encodings.getFromLyXName("iso8859-1");
 			lyxerr << "Unknown encoding " << encoding_str << endl;
 		}