Small formatting and comments update.

src/LaTeXFeatures.cpp

@@ -315,67 +315,67 @@ static docstring const ogonek_def = from_ascii(
 
 static docstring const lyxaccent_def = from_ascii(
 	"%% custom text accent \\LyxTextAccent[<rise value (length)>]{<accent>}{<base>}\n"
-        "\\newcommand*{\\LyxTextAccent}[3][0ex]{%\n"
+	"\\newcommand*{\\LyxTextAccent}[3][0ex]{%\n"
-        "  \\hmode@bgroup\\ooalign{\\null#3\\crcr\\hidewidth\n"
+	"  \\hmode@bgroup\\ooalign{\\null#3\\crcr\\hidewidth\n"
-        "  \\raise#1\\hbox{#2}\\hidewidth}\\egroup}\n"
+	"  \\raise#1\\hbox{#2}\\hidewidth}\\egroup}\n"
-        "%% select a font size smaller than the current font size:\n"
+	"%% select a font size smaller than the current font size:\n"
-        "\\newcommand{\\LyxAccentSize}[1][\\sf@size]{%\n"
+	"\\newcommand{\\LyxAccentSize}[1][\\sf@size]{%\n"
-        "  \\check@mathfonts\\fontsize#1\\z@\\math@fontsfalse\\selectfont\n"
+	"  \\check@mathfonts\\fontsize#1\\z@\\math@fontsfalse\\selectfont\n"
-        "}\n");
+	"}\n");
 
 static docstring const textcommabelow_def = from_ascii(
-        "\\ProvideTextCommandDefault{\\textcommabelow}[1]{%%\n"
+	"\\ProvideTextCommandDefault{\\textcommabelow}[1]{%%\n"
-        "  \\LyxTextAccent[-.31ex]{\\LyxAccentSize,}{#1}}\n");
+	"  \\LyxTextAccent[-.31ex]{\\LyxAccentSize,}{#1}}\n");
 
 static docstring const textcommaabove_def = from_ascii(
-        "\\ProvideTextCommandDefault{\\textcommaabove}[1]{%%\n"
+	"\\ProvideTextCommandDefault{\\textcommaabove}[1]{%%\n"
-        "  \\LyxTextAccent[.5ex]{\\LyxAccentSize`}{#1}}\n");
+	"  \\LyxTextAccent[.5ex]{\\LyxAccentSize`}{#1}}\n");
 
 static docstring const textcommaaboveright_def = from_ascii(
-        "\\ProvideTextCommandDefault{\\textcommaaboveright}[1]{%%\n"
+	"\\ProvideTextCommandDefault{\\textcommaaboveright}[1]{%%\n"
-        "  \\LyxTextAccent[.5ex]{\\LyxAccentSize\\ '}{#1}}\n");
+	"  \\LyxTextAccent[.5ex]{\\LyxAccentSize\\ '}{#1}}\n");
 
 // Baltic languages use a comma-accent instead of a cedilla
 static docstring const textbaltic_def = from_ascii(
-        "%% use comma accent instead of cedilla for these characters:\n"
+	"%% use comma accent instead of cedilla for these characters:\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{g}{\\textcommaabove{g}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{g}{\\textcommaabove{g}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{G}{\\textcommabelow{G}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{G}{\\textcommabelow{G}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{k}{\\textcommabelow{k}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{k}{\\textcommabelow{k}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{K}{\\textcommabelow{K}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{K}{\\textcommabelow{K}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{l}{\\textcommabelow{l}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{l}{\\textcommabelow{l}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{L}{\\textcommabelow{L}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{L}{\\textcommabelow{L}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{n}{\\textcommabelow{n}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{n}{\\textcommabelow{n}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{N}{\\textcommabelow{N}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{N}{\\textcommabelow{N}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{r}{\\textcommabelow{r}}\n"
+	"\\DeclareTextCompositeCommand{\\c}{T1}{r}{\\textcommabelow{r}}\n"
-        "\\DeclareTextCompositeCommand{\\c}{T1}{R}{\\textcommabelow{R}}\n");
+	"\\DeclareTextCompositeCommand{\\c}{T1}{R}{\\textcommabelow{R}}\n");
 
 // split-level fractions
 static docstring const xfrac_def = from_ascii(
 	   "\\usepackage{xfrac}\n");
 static docstring const smallLetterFrac_def = from_ascii(
-        "\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{default}{text}\n"
+	"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{default}{text}\n"
-		"  {phantom=c, scale-factor=1.0, slash-left-kern=-.05em}\n"
+	"  {phantom=c, scale-factor=1.0, slash-left-kern=-.05em}\n"
-		"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{lmr}{text}\n"
+	"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{lmr}{text}\n"
-		"  {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
+	"  {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
-		"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{lmss}{text}\n"
+	"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{lmss}{text}\n"
-		"  {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
+	"  {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
-		"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{cmr}{text}\n"
+	"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{cmr}{text}\n"
-		"  {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
+	"  {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
-		"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{cmss}{text}\n"
+	"\\DeclareCollectionInstance{smallLetterFrac}{xfrac}{cmss}{text}\n"
-		"  {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
+	"  {slash-symbol-font=ptm, phantom=c, scale-factor=1, slash-left-kern=-.05em}\n"
-		"\\newcommand{\\smallLetterFrac}[2]{%\n"
+	"\\newcommand{\\smallLetterFrac}[2]{%\n"
-		"  {\\UseCollection{xfrac}{smallLetterFrac}\\sfrac{#1}{#2}}}\n");
+	"  {\\UseCollection{xfrac}{smallLetterFrac}\\sfrac{#1}{#2}}}\n");
 
 static docstring const lyxref_def = from_ascii(
-		"\\RS@ifundefined{subsecref}\n"
+	"\\RS@ifundefined{subsecref}\n"
-		"  {\\newref{subsec}{name = \\RSsectxt}}\n"
+	"  {\\newref{subsec}{name = \\RSsectxt}}\n"
-		"  {}\n"
+	"  {}\n"
-		"\\RS@ifundefined{thmref}\n"
+	"\\RS@ifundefined{thmref}\n"
-		"  {\\def\\RSthmtxt{theorem~}\\newref{thm}{name = \\RSthmtxt}}\n"
+	"  {\\def\\RSthmtxt{theorem~}\\newref{thm}{name = \\RSthmtxt}}\n"
-		"  {}\n"
+	"  {}\n"
-		"\\RS@ifundefined{lemref}\n"
+	"\\RS@ifundefined{lemref}\n"
-		"  {\\def\\RSlemtxt{lemma~}\\newref{lem}{name = \\RSlemtxt}}\n"
+	"  {\\def\\RSlemtxt{lemma~}\\newref{lem}{name = \\RSlemtxt}}\n"
-		"  {}\n");
+	"  {}\n");
 
 // Make sure the columns are also outputed as rtl
 static docstring const rtloutputdblcol_def = from_ascii(
@@ -454,7 +454,7 @@ static docstring const lyxstrikeout_style = from_ascii(
 
 
 LaTeXFeatures::LaTeXFeatures(Buffer const & b, BufferParams const & p,
-			     OutputParams const & r)
+							 OutputParams const & r)
 	: buffer_(&b), params_(p), runparams_(r), in_float_(false),
 	  in_deleted_inset_(false)
 {}

src/Paragraph.cpp

@@ -1250,7 +1250,7 @@ void Paragraph::Private::latexSpecialChar(otexstream & os,
 	    && !runparams.isFullUnicode() && bparams.main_font_encoding() == "T1"
 	    && latexSpecialT1(c, os, i, column))
 		return;
-	// NOTE: XeTeX and LuaTeX use EU1/2 (pre 2017) or TU (as of 2017) encoding
+	// NOTE: "fontspec" (non-TeX fonts) sets the font encoding to "TU" (untill 2017 "EU1" or "EU2")
 	else if (!runparams.inIPA && !running_font.language()->internalFontEncoding()
 		 && runparams.isFullUnicode() && latexSpecialTU(c, os, i, column))
 		     return;

src/frontends/qt4/GuiDocument.cpp

@@ -2071,7 +2071,7 @@ void GuiDocument::updateQuoteStyles(bool const set)
 
 void GuiDocument::languageChanged(int i)
 {
-	// some languages only work with polyglossia
+	// some languages only work with Polyglossia
 	Language const * lang = lyx::languages.getLanguage(
 		fromqstr(langModule->languageCO->itemData(i).toString()));
 	if (lang->babel().empty() && !lang->polyglossia().empty()) {
@@ -3853,9 +3853,8 @@ void GuiDocument::paramsToDialog()
 	if (nn >= 0)
 		listingsModule->packageCO->setCurrentIndex(nn);
 
-
 	// Fonts
-	// some languages only work with polyglossia/XeTeX
+	// some languages only work with Polyglossia (which requires non-TeX fonts)
 	Language const * lang = lyx::languages.getLanguage(
 		fromqstr(langModule->languageCO->itemData(
 			langModule->languageCO->currentIndex()).toString()));

src/insets/InsetGraphics.cpp

@@ -109,7 +109,7 @@ namespace {
 /// Note that \p format may be unknown (i. e. an empty string)
 string findTargetFormat(string const & format, OutputParams const & runparams)
 {
-	// Are we using latex or XeTeX/LuaTeX/pdflatex?
+	// Are we latexing to DVI or PDF?
 	if (runparams.flavor == OutputParams::PDFLATEX
 	    || runparams.flavor == OutputParams::XETEX
 	    || runparams.flavor == OutputParams::LUATEX) {

src/insets/InsetListings.cpp

@@ -123,8 +123,7 @@ Encoding const * InsetListings::forcedEncoding(Encoding const * inner_enc,
 					       Encoding const * outer_enc) const
 {
 	// The listings package cannot deal with multi-byte-encoded
-	// glyphs, except if full-unicode aware backends
+	// glyphs, except for Xe/LuaTeX (with non-TeX fonts) or pLaTeX.
-	// such as XeTeX or LuaTeX are used, and with pLaTeX.
 	// Minted can deal with all encodings.
 	if (buffer().params().use_minted
 		|| inner_enc->name() == "utf8-plain"
@@ -135,6 +134,8 @@ Encoding const * InsetListings::forcedEncoding(Encoding const * inner_enc,
 
 	// We try if there's a singlebyte encoding for the outer
 	// language; if not, fall back to latin1.
+	// Power-users can set inputenc to utf8-plain to bypass this workaround
+	// and provide alternatives in the user-preamble.
 	return (outer_enc->hasFixedWidth()) ?
 			outer_enc : encodings.fromLyXName("iso8859-1");
 }