3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * Full author contact details are available in file CREDITS.
15 #include "BufferParams.h"
17 #include "DispatchResult.h"
18 #include "FuncStatus.h"
19 #include "InsetLabel.h"
21 #include "LaTeXFeatures.h"
23 #include "OutputParams.h"
24 #include "output_xhtml.h"
25 #include "Paragraph.h"
26 #include "ParIterator.h"
28 #include "texstream.h"
29 #include "TocBackend.h"
31 #include "support/debug.h"
32 #include "support/docstream.h"
33 #include "support/gettext.h"
34 #include "support/lstrings.h"
35 #include "support/textutils.h"
37 using namespace lyx::support;
43 InsetRef::InsetRef(Buffer * buf, InsetCommandParams const & p)
44 : InsetCommand(buf, p), broken_(false), active_(true)
48 InsetRef::InsetRef(InsetRef const & ir)
49 : InsetCommand(ir), broken_(false), active_(true)
53 bool InsetRef::isCompatibleCommand(string const & s) {
54 //FIXME This is likely not the best way to handle this.
55 //But this stuff is hardcoded elsewhere already.
61 || s == "prettyref" // for InsetMathRef FIXME
68 ParamInfo const & InsetRef::findInfo(string const & /* cmdName */)
70 static ParamInfo param_info_;
71 if (param_info_.empty()) {
72 param_info_.add("name", ParamInfo::LATEX_OPTIONAL);
73 param_info_.add("reference", ParamInfo::LATEX_REQUIRED,
74 ParamInfo::HANDLING_ESCAPE);
75 param_info_.add("plural", ParamInfo::LYX_INTERNAL);
76 param_info_.add("caps", ParamInfo::LYX_INTERNAL);
77 param_info_.add("noprefix", ParamInfo::LYX_INTERNAL);
83 docstring InsetRef::layoutName() const
85 return from_ascii("Ref");
89 void InsetRef::changeTarget(docstring const & new_label)
91 // With change tracking, we insert a new ref
92 // and delete the old one
93 if (buffer().masterParams().track_changes) {
94 InsetCommandParams icp(REF_CODE, "ref");
95 icp["reference"] = new_label;
96 string const data = InsetCommand::params2string(icp);
97 lyx::dispatch(FuncRequest(LFUN_INSET_INSERT, data));
98 lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_FORWARD));
100 setParam("reference", new_label);
105 void InsetRef::doDispatch(Cursor & cur, FuncRequest & cmd)
107 string const inset = cmd.getArg(0);
108 string const arg = cmd.getArg(1);
110 if (cmd.action() == LFUN_INSET_MODIFY && inset == "ref") {
111 if (arg == "toggle-plural")
113 else if (arg == "toggle-caps")
115 else if (arg == "toggle-noprefix")
116 pstring = "noprefix";
117 else if (arg == "changetarget") {
118 string const oldtarget = cmd.getArg(2);
119 string const newtarget = cmd.getArg(3);
120 if (!oldtarget.empty() && !newtarget.empty()
121 && getParam("reference") == from_utf8(oldtarget))
122 changeTarget(from_utf8(newtarget));
123 cur.forceBufferUpdate();
127 // otherwise not for us
129 return InsetCommand::doDispatch(cur, cmd);
131 bool const isSet = (getParam(pstring) == "true");
132 setParam(pstring, from_ascii(isSet ? "false" : "true"));
136 bool InsetRef::getStatus(Cursor & cur, FuncRequest const & cmd,
137 FuncStatus & status) const
139 if (cmd.action() != LFUN_INSET_MODIFY)
140 return InsetCommand::getStatus(cur, cmd, status);
141 if (cmd.getArg(0) != "ref")
142 return InsetCommand::getStatus(cur, cmd, status);
144 string const arg = cmd.getArg(1);
146 if (arg == "changetarget")
148 if (arg == "toggle-plural")
150 else if (arg == "toggle-caps")
152 if (!pstring.empty()) {
153 status.setEnabled(buffer().params().use_refstyle &&
154 params().getCmdName() == "formatted");
155 bool const isSet = (getParam(pstring) == "true");
156 status.setOnOff(isSet);
159 if (arg == "toggle-noprefix") {
160 status.setEnabled(params().getCmdName() == "labelonly");
161 bool const isSet = (getParam("noprefix") == "true");
162 status.setOnOff(isSet);
165 // otherwise not for us
166 return InsetCommand::getStatus(cur, cmd, status);
172 void capitalize(docstring & s) {
173 char_type t = uppercase(s[0]);
180 // the ref argument is the label name we are referencing.
181 // we expect ref to be in the form: pfx:suffix.
183 // if it isn't, then we can't produce a formatted reference,
184 // so we return "\ref" and put ref into label.
186 // for refstyle, we return "\pfxcmd", and put suffix into
187 // label and pfx into prefix. this is because refstyle expects
188 // the command: \pfxcmd{suffix}.
190 // for prettyref, we return "\prettyref" and put ref into label
191 // and pfx into prefix. this is because prettyref uses the whole
192 // label, thus: \prettyref{pfx:suffix}.
194 docstring InsetRef::getFormattedCmd(docstring const & ref,
195 docstring & label, docstring & prefix, docstring const & caps) const
197 static docstring const defcmd = from_ascii("\\ref");
198 static docstring const prtcmd = from_ascii("\\prettyref");
200 label = split(ref, prefix, ':');
202 // we have to have xxx:xxxxx...
204 LYXERR0("Label `" << ref << "' contains no `:' separator.");
206 prefix = from_ascii("");
210 if (prefix.empty()) {
216 if (!buffer().params().use_refstyle) {
217 // \prettyref uses the whole label
222 // make sure the prefix is legal for a latex command
223 int const len = prefix.size();
224 for (int i = 0; i < len; i++) {
225 char_type const c = prefix[i];
226 if (!isAlphaASCII(c)) {
227 LYXERR0("Prefix `" << prefix << "' is invalid for LaTeX.");
233 if (caps == "true") {
236 return from_ascii("\\") + prefix + from_ascii("ref");
240 docstring InsetRef::getEscapedLabel(OutputParams const & rp) const
242 InsetCommandParams const & p = params();
243 ParamInfo const & pi = p.info();
244 ParamInfo::ParamData const & pd = pi["reference"];
245 return p.prepareCommand(rp, getParam("reference"), pd.handling());
249 void InsetRef::latex(otexstream & os, OutputParams const & rp) const
251 string const & cmd = getCmdName();
252 docstring const & data = getEscapedLabel(rp);
254 if (rp.inulemcmd > 0)
257 if (cmd == "eqref" && buffer().params().use_refstyle) {
258 // we advertise this as printing "(n)", so we'll do that, at least
259 // for refstyle, since refstlye's own \eqref prints, by default,
260 // "equation n". if one wants \eqref, one can get it by using a
261 // formatted label in this case.
262 os << '(' << from_ascii("\\ref{") << data << from_ascii("})");
264 else if (cmd == "formatted") {
267 docstring const fcmd =
268 getFormattedCmd(data, label, prefix, getParam("caps"));
270 if (buffer().params().use_refstyle && getParam("plural") == "true")
272 os << '{' << label << '}';
274 else if (cmd == "labelonly") {
275 docstring const & ref = getParam("reference");
276 if (getParam("noprefix") != "true")
280 docstring suffix = split(ref, prefix, ':');
281 if (suffix.empty()) {
282 LYXERR0("Label `" << ref << "' contains no `:' separator.");
290 InsetCommandParams p(REF_CODE, cmd);
291 docstring const ref = getParam("reference");
292 p["reference"] = ref;
293 os << p.getCommand(rp);
296 if (rp.inulemcmd > 0)
301 int InsetRef::plaintext(odocstringstream & os,
302 OutputParams const &, size_t) const
304 docstring const str = getParam("reference");
305 os << '[' << str << ']';
306 return 2 + str.size();
310 void InsetRef::docbook(XMLStream & xs, OutputParams const &) const
312 docstring const & ref = getParam("reference");
313 InsetLabel const * il = buffer().insetLabel(ref, true);
314 string const & cmd = params().getCmdName();
315 docstring linkend = xml::cleanID(ref);
317 // A name is provided, LyX will provide it. This is supposed to be a very rare case.
318 // Link with linkend, as is it within the document (not outside, in which case xlink:href is better suited).
319 docstring const & name = getParam("name");
321 docstring attr = from_utf8("linkend=\"") + linkend + from_utf8("\"");
323 xs << xml::StartTag("link", to_utf8(attr));
325 xs << xml::EndTag("link");
329 // The DocBook processor will generate the name when required.
330 docstring display_before;
331 docstring display_after;
334 if (il && !il->counterValue().empty()) {
335 // Try to construct a label from the InsetLabel we reference.
336 if (cmd == "vref" || cmd == "pageref" || cmd == "vpageref" || cmd == "nameref" || cmd == "formatted") {
337 // "ref on page #", "on page #", etc. The DocBook processor deals with generating the right text,
338 // including in the right language.
339 role = from_ascii(cmd);
341 if (cmd == "formatted") {
342 // A formatted reference may have many parameters. Generate all of them as roles, the only
343 // way arbitrary parameters can be passed into DocBook.
344 if (buffer().params().use_refstyle && getParam("caps") == "true")
345 role += " refstyle-caps";
346 if (buffer().params().use_refstyle && getParam("plural") == "true")
347 role += " refstyle-plural";
349 } else if (cmd == "eqref") {
350 display_before = from_ascii("(");
351 display_after = from_ascii(")");
353 // TODO: what about labelonly? I don't get how this is supposed to work...
356 // No name, ask DocBook to generate one.
357 docstring attr = from_utf8("linkend=\"") + ref + from_utf8("\"");
359 attr += " role=\"" + role + "\"";
360 xs << display_before;
361 xs << xml::CompTag("xref", to_utf8(attr));
366 docstring InsetRef::xhtml(XMLStream & xs, OutputParams const & op) const
368 docstring const & ref = getParam("reference");
369 InsetLabel const * il = buffer().insetLabel(ref, true);
370 string const & cmd = params().getCmdName();
371 docstring display_string;
373 if (il && !il->counterValue().empty()) {
374 // Try to construct a label from the InsetLabel we reference.
375 docstring const & value = il->counterValue();
377 display_string = value;
378 else if (cmd == "vref")
379 // normally, would be "ref on page #", but we have no pages
380 display_string = value;
381 else if (cmd == "pageref" || cmd == "vpageref")
382 // normally would be "on page #", but we have no pages.
383 display_string = translateIfPossible(from_ascii("elsewhere"),
384 op.local_font->language()->lang());
385 else if (cmd == "eqref")
386 display_string = '(' + value + ')';
387 else if (cmd == "formatted") {
388 display_string = il->prettyCounter();
389 if (buffer().params().use_refstyle && getParam("caps") == "true")
390 capitalize(display_string);
391 // it is hard to see what to do about plurals...
393 else if (cmd == "nameref")
394 // FIXME We don't really have the ability to handle these
395 // properly in XHTML output yet (bug #8599).
396 // It might not be that hard to do. We have the InsetLabel,
397 // and we can presumably find its paragraph using the TOC.
398 // But the label might be referencing a section, yet not be
399 // in that section. So this is not trivial.
400 display_string = il->prettyCounter();
402 display_string = ref;
404 // FIXME What we'd really like to do is to be able to output some
405 // appropriate sort of text here. But to do that, we need to associate
406 // some sort of counter with the label, and we don't have that yet.
407 docstring const attr = "href=\"#" + xml::cleanAttr(ref) + '"';
408 xs << xml::StartTag("a", to_utf8(attr));
409 xs << display_string;
410 xs << xml::EndTag("a");
415 void InsetRef::toString(odocstream & os) const
417 odocstringstream ods;
418 plaintext(ods, OutputParams(0));
423 void InsetRef::forOutliner(docstring & os, size_t const, bool const) const
425 // There's no need for details in the TOC, and a long label
426 // will just get in the way.
431 void InsetRef::updateBuffer(ParIterator const & it, UpdateType, bool const /*deleted*/)
433 docstring const & ref = getParam("reference");
435 // Check if this one is active (i.e., neither deleted with change-tracking
436 // nor in an inset that does not produce output, such as notes or inactive branches)
437 Paragraph const & para = it.paragraph();
438 active_ = !para.isDeleted(it.pos()) && para.inInset().producesOutput();
439 // If not, check whether we are in a deleted/non-outputting inset
441 for (size_type sl = 0 ; sl < it.depth() ; ++sl) {
442 Paragraph const & outer_par = it[sl].paragraph();
443 if (outer_par.isDeleted(it[sl].pos())
444 || !outer_par.inInset().producesOutput()) {
451 // register this inset into the buffer reference cache.
452 buffer().addReference(ref, this, it);
455 string const & cmd = getCmdName();
456 for (int i = 0; !types[i].latex_name.empty(); ++i) {
457 if (cmd == types[i].latex_name) {
458 label = _(types[i].short_gui_name);
463 if (cmd != "labelonly")
466 if (getParam("noprefix") != "true")
470 docstring suffix = split(ref, prefix, ':');
471 if (suffix.empty()) {
479 if (!buffer().params().isLatex() && !getParam("name").empty()) {
481 label += getParam("name");
484 unsigned int const maxLabelChars = 24;
485 if (label.size() > maxLabelChars) {
487 support::truncateWithEllipsis(label, maxLabelChars);
489 tooltip_ = from_ascii("");
491 screen_label_ = label;
497 docstring InsetRef::screenLabel() const
499 return (broken_ ? _("BROKEN: ") : docstring()) + screen_label_;
503 void InsetRef::addToToc(DocIterator const & cpit, bool output_active,
504 UpdateType, TocBackend & backend) const
506 active_ = output_active;
507 docstring const & label = getParam("reference");
508 if (buffer().insetLabel(label)) {
509 broken_ = !buffer().activeLabel(label);
511 if (broken_ && output_active) {
512 shared_ptr<Toc> toc2 = backend.toc("brokenrefs");
513 toc2->push_back(TocItem(cpit, 0, screenLabel(), output_active));
515 // This InsetRef has already been taken care of in InsetLabel::addToToc().
519 // It seems that this reference does not point to any valid label.
522 shared_ptr<Toc> toc = backend.toc("label");
523 toc->push_back(TocItem(cpit, 0, screenLabel(), output_active));
524 shared_ptr<Toc> toc2 = backend.toc("brokenrefs");
525 toc2->push_back(TocItem(cpit, 0, screenLabel(), output_active));
529 void InsetRef::validate(LaTeXFeatures & features) const
531 string const cmd = getCmdName();
532 if (cmd == "vref" || cmd == "vpageref")
533 features.require("varioref");
534 else if (cmd == "formatted") {
535 docstring const data = getEscapedLabel(features.runparams());
538 docstring const fcmd =
539 getFormattedCmd(data, label, prefix, getParam("caps"));
540 if (buffer().params().use_refstyle) {
541 features.require("refstyle");
543 features.addPreambleSnippet(from_ascii("\\let\\charef=\\chapref"));
544 else if (!prefix.empty()) {
545 docstring lcmd = "\\AtBeginDocument{\\providecommand" +
546 fcmd + "[1]{\\ref{" + prefix + ":#1}}}";
547 features.addPreambleSnippet(lcmd);
550 features.require("prettyref");
551 // prettyref uses "cha" for chapters, so we provide a kind of
553 if (prefix == "chap")
554 features.addPreambleSnippet(from_ascii("\\let\\pr@chap=\\pr@cha"));
556 } else if (cmd == "eqref" && !buffer().params().use_refstyle)
557 // with refstyle, we simply output "(\ref{label})"
558 features.require("amsmath");
559 else if (cmd == "nameref")
560 features.require("nameref");
563 bool InsetRef::forceLTR(OutputParams const & rp) const
565 // We force LTR for references. However,
566 // * Namerefs are output in the scripts direction
567 // at least with fontspec/bidi and luabidi, though (see #11518).
568 // * Parentheses are automatically swapped with XeTeX/bidi
569 // [not with LuaTeX/luabidi] (see #11626).
570 // FIXME: Re-Audit all other RTL cases.
571 if (rp.useBidiPackage())
573 return (getCmdName() != "nameref" || !buffer().masterParams().useNonTeXFonts);
577 InsetRef::type_info const InsetRef::types[] = {
578 { "ref", N_("Standard"), N_("Ref: ")},
579 { "eqref", N_("Equation"), N_("EqRef: ")},
580 { "pageref", N_("Page Number"), N_("Page: ")},
581 { "vpageref", N_("Textual Page Number"), N_("TextPage: ")},
582 { "vref", N_("Standard+Textual Page"), N_("Ref+Text: ")},
583 { "nameref", N_("Reference to Name"), N_("NameRef: ")},
584 { "formatted", N_("Formatted"), N_("Format: ")},
585 { "labelonly", N_("Label Only"), N_("Label: ")},
590 docstring InsetRef::getTOCString() const
592 docstring const & label = getParam("reference");
593 if (buffer().insetLabel(label))
594 broken_ = !buffer().activeLabel(label) && active_;
597 return tooltip_.empty() ? screenLabel() : tooltip_;