]> git.lyx.org Git - lyx.git/blobdiff - src/insets/InsetListings.cpp
Whitespace.
[lyx.git] / src / insets / InsetListings.cpp
index e2b84d1e25cb0c37a95ede83b76ff6a969ac06b1..1afa0f3612625d663e8500d65dbbcb5c3de9ce11 100644 (file)
 #include "FuncStatus.h"
 #include "InsetCaption.h"
 #include "Language.h"
+#include "LaTeXFeatures.h"
 #include "Lexer.h"
 #include "output_latex.h"
 #include "output_xhtml.h"
+#include "OutputParams.h"
 #include "TextClass.h"
+#include "texstream.h"
 
 #include "support/debug.h"
 #include "support/docstream.h"
@@ -38,7 +41,7 @@
 #include "frontends/alert.h"
 #include "frontends/Application.h"
 
-#include <boost/regex.hpp>
+#include "support/regex.h"
 
 #include <sstream>
 
@@ -47,13 +50,9 @@ using namespace lyx::support;
 
 namespace lyx {
 
-using boost::regex;
-
-char const lstinline_delimiters[] =
-       "!*()-=+|;:'\"`,<.>/?QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm";
 
 InsetListings::InsetListings(Buffer * buf, InsetListingsParams const & par)
-       : InsetCollapsable(buf)
+       : InsetCaptionable(buf,"listing")
 {
        status_ = par.status();
 }
@@ -71,21 +70,6 @@ Inset::DisplayType InsetListings::display() const
 }
 
 
-void InsetListings::updateBuffer(ParIterator const & it, UpdateType utype)
-{
-       Counters & cnts = buffer().masterBuffer()->params().documentClass().counters();
-       string const saveflt = cnts.current_float();
-
-       // Tell to captions what the current float is
-       cnts.current_float("listing");
-
-       InsetCollapsable::updateBuffer(it, utype);
-
-       //reset afterwards
-       cnts.current_float(saveflt);
-}
-
-
 void InsetListings::write(ostream & os) const
 {
        os << "listings" << "\n";
@@ -98,7 +82,7 @@ void InsetListings::write(ostream & os) const
                os << "inline true\n";
        else
                os << "inline false\n";
-       InsetCollapsable::write(os);
+       InsetCaptionable::write(os);
 }
 
 
@@ -120,16 +104,15 @@ void InsetListings::read(Lexer & lex)
                        break;
                }
        }
-       InsetCollapsable::read(lex);
+       InsetCaptionable::read(lex);
 }
 
 
-int InsetListings::latex(odocstream & os, OutputParams const & runparams) const
+void InsetListings::latex(otexstream & os, OutputParams const & runparams) const
 {
        string param_string = params().params();
        // NOTE: I use {} to quote text, which is an experimental feature
        // of the listings package (see page 25 of the manual)
-       int lines = 0;
        bool const isInline = params().isInline();
        // get the paragraphs. We can not output them directly to given odocstream
        // because we can not yet determine the delimiter character of \lstinline
@@ -140,10 +123,18 @@ int InsetListings::latex(odocstream & os, OutputParams const & runparams) const
 
        bool encoding_switched = false;
        Encoding const * const save_enc = runparams.encoding;
-
-       if (!runparams.encoding->hasFixedWidth()) {
-               // We need to switch to a singlebyte encoding, since the listings
-               // package cannot deal with multiple-byte-encoded glyphs
+       // The listings package cannot deal with multi-byte-encoded
+       // glyphs, except if full-unicode aware backends
+       // such as XeTeX or LuaTeX are used, and with pLaTeX.
+       bool const multibyte_possible = runparams.isFullUnicode()
+           || (buffer().params().encoding().package() == Encoding::japanese
+               && runparams.encoding->package() == Encoding::japanese);
+
+       if (!multibyte_possible && !runparams.encoding->hasFixedWidth()) {
+               // We need to switch to a singlebyte encoding, due to
+               // the restrictions of the listings package (see above).
+               // This needs to be consistent with
+               // LaTeXFeatures::getTClassI18nPreamble().
                Language const * const outer_language =
                        (runparams.local_font != 0) ?
                                runparams.local_font->language()
@@ -152,10 +143,9 @@ int InsetListings::latex(odocstream & os, OutputParams const & runparams) const
                // language; if not, fall back to latin1.
                Encoding const * const lstenc =
                        (outer_language->encoding()->hasFixedWidth()) ?
-                               outer_language->encoding() 
+                               outer_language->encoding()
                                : encodings.fromLyXName("iso8859-1");
-               pair<bool, int> const c = switchEncoding(os, buffer().params(),
-                               runparams, *lstenc, true);
+               switchEncoding(os.os(), buffer().params(), runparams, *lstenc, true);
                runparams.encoding = lstenc;
                encoding_switched = true;
        }
@@ -173,46 +163,45 @@ int InsetListings::latex(odocstream & os, OutputParams const & runparams) const
                        // we can only output characters covered by the current
                        // encoding!
                        try {
-                               if (runparams.encoding->latexChar(c) == docstring(1, c))
+                               if (runparams.encoding->encodable(c))
                                        code += c;
                                else if (runparams.dryrun) {
                                        code += "<" + _("LyX Warning: ")
                                           + _("uncodable character") + " '";
                                        code += docstring(1, c);
                                        code += "'>";
-                               } else
+                               } else
                                        uncodable += c;
                        } catch (EncodingException & /* e */) {
-                               if (runparams.dryrun) {
+                               if (runparams.dryrun) {
                                        code += "<" + _("LyX Warning: ")
                                           + _("uncodable character") + " '";
                                        code += docstring(1, c);
                                        code += "'>";
-                               } else
+                               } else
                                        uncodable += c;
                        }
                }
                ++par;
                // for the inline case, if there are multiple paragraphs
                // they are simply joined. Otherwise, expect latex errors.
-               if (par != end && !isInline && !captionline) {
+               if (par != end && !isInline && !captionline)
                        code += "\n";
-                       ++lines;
-               }
        }
        if (isInline) {
-               char const * delimiter = lstinline_delimiters;
-               for (; delimiter != '\0'; ++delimiter)
-                       if (!contains(code, *delimiter))
-                               break;
+               static const docstring delimiters =
+                               from_utf8("!*()-=+|;:'\"`,<.>/?QWERTYUIOPASDFGHJKLZXCVBNMqwertyuiopasdfghjklzxcvbnm");
+
+               size_t pos = delimiters.find_first_not_of(code);
+
                // This code piece contains all possible special character? !!!
                // Replace ! with a warning message and use ! as delimiter.
-               if (*delimiter == '\0') {
+               if (pos == string::npos) {
                        docstring delim_error = "<" + _("LyX Warning: ")
                                + _("no more lstline delimiters available") + ">";
                        code = subst(code, from_ascii("!"), delim_error);
-                       delimiter = lstinline_delimiters;
-                       if (!runparams.dryrun) {
+                       pos = 0;
+                       if (!runparams.dryrun && !runparams.silent) {
                                // FIXME: warning should be passed to the error dialog
                                frontend::Alert::warning(_("Running out of delimiters"),
                                _("For inline program listings, one character must be reserved\n"
@@ -222,20 +211,22 @@ int InsetListings::latex(odocstream & os, OutputParams const & runparams) const
                                  "must investigate!"));
                        }
                }
-               if (param_string.empty())
-                       os << "\\lstinline" << *delimiter;
-               else
-                       os << "\\lstinline[" << from_utf8(param_string) << "]" << *delimiter;
-                os << code
-                   << *delimiter;
+               docstring const delim(1, delimiters[pos]);
+               os << "\\lstinline";
+               if (!param_string.empty())
+                       os << "[" << from_utf8(param_string) << "]";
+               else if (pos >= delimiters.find('Q'))
+                       // We need to terminate the command before the delimiter
+                       os << " ";
+               os << delim << code << delim;
        } else {
                OutputParams rp = runparams;
                rp.moving_arg = true;
                docstring const caption = getCaption(rp);
                if (param_string.empty() && caption.empty())
-                       os << "\n\\begin{lstlisting}\n";
+                       os << breakln << "\\begin{lstlisting}\n";
                else {
-                       os << "\n\\begin{lstlisting}[";
+                       os << breakln << "\\begin{lstlisting}[";
                        if (!caption.empty()) {
                                os << "caption={" << caption << '}';
                                if (!param_string.empty())
@@ -243,28 +234,33 @@ int InsetListings::latex(odocstream & os, OutputParams const & runparams) const
                        }
                        os << from_utf8(param_string) << "]\n";
                }
-               lines += 2;
-               os << code << "\n\\end{lstlisting}\n";
-               lines += 2;
+               os << code << breakln << "\\end{lstlisting}\n";
        }
 
        if (encoding_switched){
                // Switch back
-               pair<bool, int> const c = switchEncoding(os, buffer().params(),
-                               runparams, *save_enc, true);
+               switchEncoding(os.os(), buffer().params(), runparams, *save_enc, true);
                runparams.encoding = save_enc;
        }
 
-       if (!uncodable.empty()) {
+       if (!uncodable.empty() && !runparams.silent) {
                // issue a warning about omitted characters
                // FIXME: should be passed to the error dialog
-               frontend::Alert::warning(_("Uncodable characters in listings inset"),
-                       bformat(_("The following characters in one of the program listings are\n"
-                                 "not representable in the current encoding and have been omitted:\n%1$s."),
-                       uncodable));
+               if (!multibyte_possible && !runparams.encoding->hasFixedWidth())
+                       frontend::Alert::warning(_("Uncodable characters in listings inset"),
+                               bformat(_("The following characters in one of the program listings are\n"
+                                         "not representable in the current encoding and have been omitted:\n%1$s.\n"
+                                         "This is due to a restriction of the listings package, which does\n"
+                                         "not support your encoding '%2$s'.\n"
+                                         "Toggling 'Use non-TeX fonts' in Document > Settings...\n"
+                                         "might help."),
+                               uncodable, _(runparams.encoding->guiName())));
+               else
+                       frontend::Alert::warning(_("Uncodable characters in listings inset"),
+                               bformat(_("The following characters in one of the program listings are\n"
+                                         "not representable in the current encoding and have been omitted:\n%1$s."),
+                               uncodable));
        }
-
-       return lines;
 }
 
 
@@ -274,26 +270,37 @@ docstring InsetListings::xhtml(XHTMLStream & os, OutputParams const & rp) const
        XHTMLStream out(ods);
 
        bool const isInline = params().isInline();
-       if (isInline) 
+       if (isInline)
                out << html::CompTag("br");
        else {
                out << html::StartTag("div", "class='float float-listings'");
                docstring caption = getCaptionHTML(rp);
                if (!caption.empty())
-                       out << html::StartTag("div", "class='float-caption'") 
+                       out << html::StartTag("div", "class='float-caption'")
+                           << XHTMLStream::ESCAPE_NONE
                            << caption << html::EndTag("div");
        }
 
-       out << html::StartTag("pre");
+       InsetLayout const & il = getLayout();
+       string const & tag = il.htmltag();
+       string attr = "class ='listings";
+       string const lang = params().getParamValue("language");
+       if (!lang.empty())
+               attr += " " + lang;
+       attr += "'";
+       out << html::StartTag(tag, attr);
        OutputParams newrp = rp;
        newrp.html_disable_captions = true;
+       // We don't want to convert dashes here. That's the only conversion we
+       // do for XHTML, so this is safe.
+       newrp.pass_thru = true;
        docstring def = InsetText::insetAsXHTML(out, newrp, InsetText::JustText);
-       out << html::EndTag("pre");
+       out << html::EndTag(tag);
 
        if (isInline) {
                out << html::CompTag("br");
                // escaping will already have been done
-               os << XHTMLStream::NextRaw() << ods.str();
+               os << XHTMLStream::ESCAPE_NONE << ods.str();
        } else {
                out << html::EndTag("div");
                // In this case, this needs to be deferred, but we'll put it
@@ -304,9 +311,9 @@ docstring InsetListings::xhtml(XHTMLStream & os, OutputParams const & rp) const
 }
 
 
-docstring InsetListings::contextMenu(BufferView const &, int, int) const
+string InsetListings::contextMenuName() const
 {
-       return from_ascii("context-listings");
+       return "context-listings";
 }
 
 
@@ -315,6 +322,7 @@ void InsetListings::doDispatch(Cursor & cur, FuncRequest & cmd)
        switch (cmd.action()) {
 
        case LFUN_INSET_MODIFY: {
+               cur.recordUndoInset(this);
                InsetListings::string2params(to_utf8(cmd.argument()), params());
                break;
        }
@@ -324,7 +332,7 @@ void InsetListings::doDispatch(Cursor & cur, FuncRequest & cmd)
                break;
 
        default:
-               InsetCollapsable::doDispatch(cur, cmd);
+               InsetCaptionable::doDispatch(cur, cmd);
                break;
        }
 }
@@ -338,11 +346,15 @@ bool InsetListings::getStatus(Cursor & cur, FuncRequest const & cmd,
                case LFUN_INSET_DIALOG_UPDATE:
                        status.setEnabled(true);
                        return true;
-               case LFUN_CAPTION_INSERT:
-                       status.setEnabled(!params().isInline());
-                       return true;
+               case LFUN_CAPTION_INSERT: {
+                       // the inset outputs at most one caption
+                       if (params().isInline() || getCaptionInset()) {
+                               status.setEnabled(false);
+                               return true;
+                       }
+               }
                default:
-                       return InsetCollapsable::getStatus(cur, cmd, status);
+                       return InsetCaptionable::getStatus(cur, cmd, status);
        }
 }
 
@@ -363,7 +375,7 @@ void InsetListings::validate(LaTeXFeatures & features) const
        string param_string = params().params();
        if (param_string.find("\\color") != string::npos)
                features.require("color");
-       InsetCollapsable::validate(features);
+       InsetCaptionable::validate(features);
 }
 
 
@@ -385,8 +397,13 @@ docstring InsetListings::getCaption(OutputParams const & runparams) const
                return docstring();
 
        odocstringstream ods;
-       ins->getOptArg(ods, runparams);
-       ins->getArgument(ods, runparams);
+       otexstream os(ods, false);
+       ins->getArgs(os, runparams);
+       ins->getArgument(os, runparams);
+
+       // TODO: The code below should be moved to support, and then the test
+       //       in ../tests should be moved there as well.
+
        // the caption may contain \label{} but the listings
        // package prefer caption={}, label={}
        docstring cap = ods.str();
@@ -401,7 +418,7 @@ docstring InsetListings::getCaption(OutputParams const & runparams) const
        //
        // NOTE that } is not allowed in blah2.
        regex const reg("(.*)\\\\label\\{(.*?)\\}(.*)");
-       string const new_cap("\\1\\3},label={\\2");
+       string const new_cap("$1$3},label={$2");
        return from_utf8(regex_replace(to_utf8(cap), reg, new_cap));
 }