]> git.lyx.org Git - lyx.git/blobdiff - src/insets/InsetRef.cpp
Fix text direction of references with XeTeX/bidi
[lyx.git] / src / insets / InsetRef.cpp
index d6a594eec79da2abb9489ecc841d9b3099086676..82db322320aaae7d5d89bba6537ecfa69b65a120 100644 (file)
 #include "InsetRef.h"
 
 #include "Buffer.h"
+#include "BufferParams.h"
 #include "Cursor.h"
 #include "DispatchResult.h"
-#include "FuncRequest.h"
+#include "FuncStatus.h"
 #include "InsetLabel.h"
+#include "Language.h"
 #include "LaTeXFeatures.h"
 #include "LyX.h"
 #include "OutputParams.h"
 #include "output_xhtml.h"
 #include "ParIterator.h"
 #include "sgml.h"
+#include "texstream.h"
 #include "TocBackend.h"
 
+#include "support/debug.h"
 #include "support/docstream.h"
 #include "support/gettext.h"
 #include "support/lstrings.h"
+#include "support/textutils.h"
 
 using namespace lyx::support;
 using namespace std;
@@ -35,24 +40,27 @@ namespace lyx {
 
 
 InsetRef::InsetRef(Buffer * buf, InsetCommandParams const & p)
-       : InsetCommand(buf, p, "ref"), isLatex(buf->isLatex())
+       : InsetCommand(buf, p), broken_(false)
 {}
 
 
 InsetRef::InsetRef(InsetRef const & ir)
-       : InsetCommand(ir), isLatex(ir.isLatex)
+       : InsetCommand(ir), broken_(false)
 {}
 
 
 bool InsetRef::isCompatibleCommand(string const & s) {
        //FIXME This is likely not the best way to handle this.
        //But this stuff is hardcoded elsewhere already.
-       return s == "ref" 
+       return s == "ref"
                || s == "pageref"
-               || s == "vref" 
+               || s == "vref"
                || s == "vpageref"
-               || s == "prettyref"
-               || s == "eqref";
+               || s == "formatted"
+               || s == "prettyref" // for InsetMathRef FIXME
+               || s == "eqref"
+               || s == "nameref"
+               || s == "labelonly";
 }
 
 
@@ -63,23 +71,203 @@ ParamInfo const & InsetRef::findInfo(string const & /* cmdName */)
                param_info_.add("name", ParamInfo::LATEX_OPTIONAL);
                param_info_.add("reference", ParamInfo::LATEX_REQUIRED,
                                ParamInfo::HANDLING_ESCAPE);
+               param_info_.add("plural", ParamInfo::LYX_INTERNAL);
+               param_info_.add("caps", ParamInfo::LYX_INTERNAL);
+               param_info_.add("noprefix", ParamInfo::LYX_INTERNAL);
        }
        return param_info_;
 }
 
 
-int InsetRef::latex(odocstream & os, OutputParams const & runparams) const
+void InsetRef::doDispatch(Cursor & cur, FuncRequest & cmd)
 {
-       // We don't want to output p_["name"], since that is only used 
-       // in docbook. So we construct new params, without it, and use that.
-       InsetCommandParams p(REF_CODE, getCmdName());
-       p["reference"] = getParam("reference");
-       os << p.getCommand(runparams);
-       return 0;
+       string const inset = cmd.getArg(0);
+       string const arg   = cmd.getArg(1);
+       string pstring;
+       if (cmd.action() == LFUN_INSET_MODIFY && inset == "ref") {
+               if (arg == "toggle-plural")
+                       pstring = "plural";
+               else if (arg == "toggle-caps")
+                       pstring = "caps";
+               else if (arg == "toggle-noprefix")
+                       pstring = "noprefix";
+       }
+       // otherwise not for us
+       if (pstring.empty())
+               return InsetCommand::doDispatch(cur, cmd);
+
+       bool const isSet = (getParam(pstring) == "true");
+       setParam(pstring, from_ascii(isSet ? "false"  : "true"));
+}
+
+
+bool InsetRef::getStatus(Cursor & cur, FuncRequest const & cmd,
+       FuncStatus & status) const
+{
+       if (cmd.action() != LFUN_INSET_MODIFY)
+               return InsetCommand::getStatus(cur, cmd, status);
+       if (cmd.getArg(0) != "ref")
+               return InsetCommand::getStatus(cur, cmd, status);
+
+       string const arg = cmd.getArg(1);
+       string pstring;
+       if (arg == "toggle-plural")
+               pstring = "plural";
+       else if (arg == "toggle-caps")
+               pstring = "caps";
+       if (!pstring.empty()) {
+               status.setEnabled(buffer().params().use_refstyle &&
+                       params().getCmdName() == "formatted");
+               bool const isSet = (getParam(pstring) == "true");
+               status.setOnOff(isSet);
+               return true;
+       }
+       if (arg == "toggle-noprefix") {
+               status.setEnabled(params().getCmdName() == "labelonly");
+               bool const isSet = (getParam("noprefix") == "true");
+               status.setOnOff(isSet);
+               return true;
+       }
+       // otherwise not for us
+       return InsetCommand::getStatus(cur, cmd, status);
+}
+
+
+namespace {
+
+void capitalize(docstring & s) {
+       char_type t = uppercase(s[0]);
+       s[0] = t;
+}
+
+} // namespace
+
+
+// the ref argument is the label name we are referencing.
+// we expect ref to be in the form: pfx:suffix.
+//
+// if it isn't, then we can't produce a formatted reference,
+// so we return "\ref" and put ref into label.
+//
+// for refstyle, we return "\pfxcmd", and put suffix into
+// label and pfx into prefix. this is because refstyle expects
+// the command: \pfxcmd{suffix}.
+//
+// for prettyref, we return "\prettyref" and put ref into label
+// and pfx into prefix. this is because prettyref uses the whole
+// label, thus: \prettyref{pfx:suffix}.
+//
+docstring InsetRef::getFormattedCmd(docstring const & ref,
+       docstring & label, docstring & prefix, docstring const & caps) const
+{
+       static docstring const defcmd = from_ascii("\\ref");
+       static docstring const prtcmd = from_ascii("\\prettyref");
+
+       label = split(ref, prefix, ':');
+
+       // we have to have xxx:xxxxx...
+       if (label.empty()) {
+               LYXERR0("Label `" << ref << "' contains no `:' separator.");
+               label = ref;
+               prefix = from_ascii("");
+               return defcmd;
+       }
+
+       if (prefix.empty()) {
+               // we have ":xxxx"
+               label = ref;
+               return defcmd;
+       }
+
+       if (!buffer().params().use_refstyle) {
+               // \prettyref uses the whole label
+               label = ref;
+               return prtcmd;
+       }
+
+       // make sure the prefix is legal for a latex command
+       int const len = prefix.size();
+       for (int i = 0; i < len; i++) {
+               char_type const c = prefix[i];
+               if (!isAlphaASCII(c)) {
+                       LYXERR0("Prefix `" << prefix << "' is invalid for LaTeX.");
+                       // restore the label
+                       label = ref;
+                       return defcmd;
+               }
+       }
+       if (caps == "true") {
+               capitalize(prefix);
+       }
+       return from_ascii("\\") + prefix + from_ascii("ref");
 }
 
 
-int InsetRef::plaintext(odocstream & os, OutputParams const &) const
+docstring InsetRef::getEscapedLabel(OutputParams const & rp) const
+{
+       InsetCommandParams const & p = params();
+       ParamInfo const & pi = p.info();
+       ParamInfo::ParamData const & pd = pi["reference"];
+       return p.prepareCommand(rp, getParam("reference"), pd.handling());
+}
+
+
+void InsetRef::latex(otexstream & os, OutputParams const & rp) const
+{
+       string const & cmd = getCmdName();
+       docstring const & data = getEscapedLabel(rp);
+
+       if (rp.inulemcmd > 0)
+               os << "\\mbox{";
+
+       if (cmd == "eqref" && buffer().params().use_refstyle) {
+               // we advertise this as printing "(n)", so we'll do that, at least
+               // for refstyle, since refstlye's own \eqref prints, by default,
+               // "equation n". if one wants \eqref, one can get it by using a
+               // formatted label in this case.
+               os << '(' << from_ascii("\\ref{") << data << from_ascii("})");
+       }
+       else if (cmd == "formatted") {
+               docstring label;
+               docstring prefix;
+               docstring const fcmd =
+                       getFormattedCmd(data, label, prefix, getParam("caps"));
+               os << fcmd;
+               if (buffer().params().use_refstyle && getParam("plural") == "true")
+                   os << "[s]";
+               os << '{' << label << '}';
+       }
+       else if (cmd == "labelonly") {
+               docstring const & ref = getParam("reference");
+               if (getParam("noprefix") != "true")
+                       os << ref;
+               else {
+                       docstring prefix;
+                       docstring suffix = split(ref, prefix, ':');
+                       if (suffix.empty()) {
+                   LYXERR0("Label `" << ref << "' contains no `:' separator.");
+                               os << ref;
+                       } else {
+                               os << suffix;
+                       }
+               }
+       }
+       else {
+               // We don't want to output p_["name"], since that is only used
+               // in docbook. So we construct new params, without it, and use that.
+               InsetCommandParams p(REF_CODE, cmd);
+               docstring const ref = getParam("reference");
+               p["reference"] = ref;
+               os << p.getCommand(rp);
+       }
+
+       if (rp.inulemcmd > 0)
+               os << "}";
+}
+
+
+int InsetRef::plaintext(odocstringstream & os,
+        OutputParams const &, size_t) const
 {
        docstring const str = getParam("reference");
        os << '[' << str << ']';
@@ -112,10 +300,10 @@ int InsetRef::docbook(odocstream & os, OutputParams const & runparams) const
 }
 
 
-docstring InsetRef::xhtml(XHTMLStream & xs, OutputParams const &) const
+docstring InsetRef::xhtml(XHTMLStream & xs, OutputParams const & op) const
 {
        docstring const & ref = getParam("reference");
-       InsetLabel const * il = buffer().insetLabel(ref);
+       InsetLabel const * il = buffer().insetLabel(ref, true);
        string const & cmd = params().getCmdName();
        docstring display_string;
 
@@ -128,117 +316,191 @@ docstring InsetRef::xhtml(XHTMLStream & xs, OutputParams const &) const
                        // normally, would be "ref on page #", but we have no pages
                        display_string = value;
                else if (cmd == "pageref" || cmd == "vpageref")
-                       // normally would be "on page #", but we have no pages
-                       display_string = _("elsewhere");
+                       // normally would be "on page #", but we have no pages.
+                       display_string = translateIfPossible(from_ascii("elsewhere"),
+                               op.local_font->language()->lang());
                else if (cmd == "eqref")
-                       display_string = bformat(from_ascii("equation (%1$s)"), value);
-               else { // "prettyref"
+                       display_string = '(' + value + ')';
+               else if (cmd == "formatted") {
                        display_string = il->prettyCounter();
+                       if (buffer().params().use_refstyle && getParam("caps") == "true")
+                               capitalize(display_string);
+                       // it is hard to see what to do about plurals...
                }
-       } else 
+               else if (cmd == "nameref")
+                       // FIXME We don't really have the ability to handle these
+                       // properly in XHTML output yet (bug #8599).
+                       // It might not be that hard to do. We have the InsetLabel,
+                       // and we can presumably find its paragraph using the TOC.
+                       // But the label might be referencing a section, yet not be
+                       // in that section. So this is not trivial.
+                       display_string = il->prettyCounter();
+       } else
                        display_string = ref;
 
        // FIXME What we'd really like to do is to be able to output some
        // appropriate sort of text here. But to do that, we need to associate
        // some sort of counter with the label, and we don't have that yet.
-       string const attr = "href=\"#" + html::cleanAttr(to_utf8(ref)) + "\"";
-       xs << html::StartTag("a", attr);
+       docstring const attr = "href=\"#" + html::cleanAttr(ref) + '"';
+       xs << html::StartTag("a", to_utf8(attr));
        xs << display_string;
        xs << html::EndTag("a");
        return docstring();
 }
 
 
-void InsetRef::tocString(odocstream & os) const
+void InsetRef::toString(odocstream & os) const
+{
+       odocstringstream ods;
+       plaintext(ods, OutputParams(0));
+       os << ods.str();
+}
+
+
+void InsetRef::forOutliner(docstring & os, size_t const, bool const) const
 {
-       plaintext(os, OutputParams(0));
+       // There's no need for details in the TOC, and a long label
+       // will just get in the way.
+       os += '#';
 }
 
 
-void InsetRef::updateLabels(ParIterator const & it, UpdateType)
+void InsetRef::updateBuffer(ParIterator const & it, UpdateType)
 {
        docstring const & ref = getParam("reference");
        // register this inset into the buffer reference cache.
-       buffer().references(ref).push_back(make_pair(this, it));
+       buffer().addReference(ref, this, it);
 
        docstring label;
+       string const & cmd = getCmdName();
        for (int i = 0; !types[i].latex_name.empty(); ++i) {
-               if (getCmdName() == types[i].latex_name) {
+               if (cmd == types[i].latex_name) {
                        label = _(types[i].short_gui_name);
                        break;
                }
        }
-       label += ref;
 
-       if (!isLatex && !getParam("name").empty()) {
+       if (cmd != "labelonly")
+               label += ref;
+       else {
+               if (getParam("noprefix") != "true")
+                       label += ref;
+               else {
+                       docstring prefix;
+                       docstring suffix = split(ref, prefix, ':');
+                       if (suffix.empty()) {
+                               label += ref;
+                       } else {
+                               label += suffix;
+                       }
+               }
+       }
+
+       if (!buffer().params().isLatex() && !getParam("name").empty()) {
                label += "||";
                label += getParam("name");
        }
-       
-       screen_label_ = label;
-       bool shortened = false;
+
        unsigned int const maxLabelChars = 24;
-       if (screen_label_.size() > maxLabelChars) {
-               screen_label_.erase(maxLabelChars - 3);
-               screen_label_ += "...";
-               shortened = true;
-       }
-       if (shortened)
+       if (label.size() > maxLabelChars) {
                tooltip_ = label;
-       else 
+               support::truncateWithEllipsis(label, maxLabelChars);
+       } else
                tooltip_ = from_ascii("");
+
+       screen_label_ = label;
+       broken_ = false;
 }
 
 
-void InsetRef::addToToc(DocIterator const & cpit)
+docstring InsetRef::screenLabel() const
+{
+       return (broken_ ? _("BROKEN: ") : docstring()) + screen_label_;
+}
+
+
+void InsetRef::addToToc(DocIterator const & cpit, bool output_active,
+                                               UpdateType, TocBackend & backend) const
 {
        docstring const & label = getParam("reference");
-       if (buffer().insetLabel(label))
+       if (buffer().insetLabel(label)) {
+               broken_ = !buffer().activeLabel(label);
                // This InsetRef has already been taken care of in InsetLabel::addToToc().
                return;
+       }
 
        // It seems that this reference does not point to any valid label.
-       screen_label_ = _("BROKEN: ") + screen_label_;
-       Toc & toc = buffer().tocBackend().toc("label");
-       toc.push_back(TocItem(cpit, 0, screen_label_));
+
+       broken_ = true;
+       shared_ptr<Toc> toc = backend.toc("label");
+       toc->push_back(TocItem(cpit, 0, screenLabel(), output_active));
 }
 
 
 void InsetRef::validate(LaTeXFeatures & features) const
 {
-       if (getCmdName() == "vref" || getCmdName() == "vpageref")
+       string const cmd = getCmdName();
+       if (cmd == "vref" || cmd == "vpageref")
                features.require("varioref");
-       else if (getCmdName() == "prettyref")
-               features.require("prettyref");
-       else if (getCmdName() == "eqref")
+       else if (cmd == "formatted") {
+               docstring const data = getEscapedLabel(features.runparams());
+               docstring label;
+               docstring prefix;
+               docstring const fcmd =
+                       getFormattedCmd(data, label, prefix, getParam("caps"));
+               if (buffer().params().use_refstyle) {
+                       features.require("refstyle");
+                       if (prefix == "cha")
+                               features.addPreambleSnippet(from_ascii("\\let\\charef=\\chapref"));
+                       else if (!prefix.empty()) {
+                               docstring lcmd = "\\AtBeginDocument{\\providecommand" +
+                                               fcmd + "[1]{\\ref{" + prefix + ":#1}}}";
+                               features.addPreambleSnippet(lcmd);
+                       }
+               } else {
+                       features.require("prettyref");
+                       // prettyref uses "cha" for chapters, so we provide a kind of
+                       // translation.
+                       if (prefix == "chap")
+                               features.addPreambleSnippet(from_ascii("\\let\\pr@chap=\\pr@cha"));
+               }
+       } else if (cmd == "eqref" && !buffer().params().use_refstyle)
+               // with refstyle, we simply output "(\ref{label})"
                features.require("amsmath");
+       else if (cmd == "nameref")
+               features.require("nameref");
+}
+
+bool InsetRef::forceLTR(OutputParams const & rp) const
+{
+       // We force LTR for references. However,
+       // * Namerefs are output in the scripts direction
+       //   at least with fontspec/bidi and luabidi, though (see #11518).
+       // * Parentheses are automatically swapped with XeTeX/bidi 
+       //   [not with LuaTeX/luabidi] (see #11626).
+       // FIXME: Re-Audit all other RTL cases.
+       if (rp.useBidiPackage())
+               return false;
+       return (getCmdName() != "nameref" || !buffer().masterParams().useNonTeXFonts);
 }
 
 
-InsetRef::type_info InsetRef::types[] = {
+InsetRef::type_info const InsetRef::types[] = {
        { "ref",       N_("Standard"),              N_("Ref: ")},
        { "eqref",     N_("Equation"),              N_("EqRef: ")},
        { "pageref",   N_("Page Number"),           N_("Page: ")},
        { "vpageref",  N_("Textual Page Number"),   N_("TextPage: ")},
        { "vref",      N_("Standard+Textual Page"), N_("Ref+Text: ")},
-       { "prettyref", N_("PrettyRef"),             N_("FrmtRef: ")},
+       { "nameref",   N_("Reference to Name"),     N_("NameRef: ")},
+       { "formatted", N_("Formatted"),             N_("Format: ")},
+       { "labelonly", N_("Label Only"),            N_("Label: ")},
        { "", "", "" }
 };
 
 
-int InsetRef::getType(string const & name)
-{
-       for (int i = 0; !types[i].latex_name.empty(); ++i)
-               if (name == types[i].latex_name)
-                       return i;
-       return 0;
-}
-
-
-string const & InsetRef::getName(int type)
+docstring InsetRef::getTOCString() const
 {
-       return types[type].latex_name;
+       return tooltip_.empty() ? screenLabel() : tooltip_;
 }
 
-
 } // namespace lyx