#include "frontends/alert.h"
#include <algorithm>
+#include <set>
#include <ostream>
+#include <QThreadStorage>
+
using namespace std;
using namespace lyx::support;
}
-int InsetIndex::docbook(odocstream & os, OutputParams const & runparams) const
+void InsetIndex::docbook(XMLStream & xs, OutputParams const & runparams) const
{
- os << "<indexterm><primary>";
- int const i = InsetText::docbook(os, runparams);
- os << "</primary></indexterm>";
- return i;
+ // Get the content of the inset as LaTeX, as some things may be encoded as ERT (like {}).
+ odocstringstream odss;
+ otexstream ots(odss);
+ InsetText::latex(ots, runparams);
+ docstring latexString = trim(odss.str());
+
+ // Check whether there are unsupported things.
+ if (latexString.find(from_utf8("@")) != latexString.npos) {
+ docstring error = from_utf8("Unsupported feature: an index entry contains an @. "
+ "Complete entry: \"") + latexString + from_utf8("\"");
+ LYXERR0(error);
+ xs << XMLStream::ESCAPE_NONE << (from_utf8("<!-- Output Error: ") + error + from_utf8(" -->\n"));
+ // TODO: implement @ using the sortas attribute (on primary, secondary, tertiary).
+ }
+
+ // Handle several indices.
+ docstring indexType = from_utf8("");
+ if (buffer().masterBuffer()->params().use_indices) {
+ indexType += " type=\"" + params_.index + "\"";
+ }
+
+ // Split the string into its main constituents: terms, and command (see, see also, range).
+ size_t positionVerticalBar = latexString.find(from_ascii("|")); // What comes before | is (sub)(sub)entries.
+ docstring indexTerms = latexString.substr(0, positionVerticalBar);
+ docstring command = latexString.substr(positionVerticalBar + 1);
+
+ // Handle primary, secondary, and tertiary terms (entries, subentries, and subsubentries, for LaTeX).
+ vector<docstring> terms = getVectorFromString(indexTerms, from_ascii("!"), false);
+
+ // Handle ranges. Happily, (| and |) can only be at the end of the string! However, | may be trapped by the
+ bool hasStartRange = latexString.find(from_ascii("|(")) != latexString.npos;
+ bool hasEndRange = latexString.find(from_ascii("|)")) != latexString.npos;
+ if (hasStartRange || hasEndRange) {
+ // Remove the ranges from the command if they do not appear at the beginning.
+ size_t index = 0;
+ while ((index = command.find(from_utf8("|("), index)) != std::string::npos)
+ command.erase(index, 1);
+ index = 0;
+ while ((index = command.find(from_utf8("|)"), index)) != std::string::npos)
+ command.erase(index, 1);
+
+ // Remove the ranges when they are the only vertical bar in the complete string.
+ if (command[0] == '(' || command[0] == ')')
+ command.erase(0, 1);
+ }
+
+ // Handle see and seealso. As "see" is a prefix of "seealso", the order of the comparisons is important.
+ // Both commands are mutually exclusive!
+ docstring see = from_utf8("");
+ vector<docstring> seeAlsoes;
+ if (command.substr(0, 3) == "see") {
+ // Unescape brackets.
+ size_t index = 0;
+ while ((index = command.find(from_utf8("\\{"), index)) != std::string::npos)
+ command.erase(index, 1);
+ index = 0;
+ while ((index = command.find(from_utf8("\\}"), index)) != std::string::npos)
+ command.erase(index, 1);
+
+ // Retrieve the part between brackets, and remove the complete seealso.
+ size_t positionOpeningBracket = command.find(from_ascii("{"));
+ size_t positionClosingBracket = command.find(from_ascii("}"));
+ docstring list = command.substr(positionOpeningBracket + 1, positionClosingBracket - positionOpeningBracket - 1);
+
+ // Parse the list of referenced entries (or a single one for see).
+ if (command.substr(0, 7) == "seealso") {
+ seeAlsoes = getVectorFromString(list, from_ascii(","), false);
+ } else {
+ see = list;
+
+ if (see.find(from_ascii(",")) != see.npos) {
+ docstring error = from_utf8("Several index terms found as \"see\"! Only one is acceptable. "
+ "Complete entry: \"") + latexString + from_utf8("\"");
+ LYXERR0(error);
+ xs << XMLStream::ESCAPE_NONE << (from_utf8("<!-- Output Error: ") + error + from_utf8(" -->\n"));
+ }
+ }
+
+ // Remove the complete see/seealso from the commands, in case there is something else to parse.
+ command = command.substr(positionClosingBracket + 1);
+ }
+
+ // Some parts of the strings are not parsed, as they do not have anything matching in DocBook: things like
+ // formatting the entry or the page number, other strings for sorting. https://wiki.lyx.org/Tips/Indexing
+ // If there are such things in the index entry, then this code may miserably fail. For example, for "Peter|(textbf",
+ // no range will be detected.
+ // TODO: Could handle formatting as significance="preferred"?
+
+ // Write all of this down.
+ if (terms.empty() && !hasEndRange) {
+ docstring error = from_utf8("No index term found! Complete entry: \"") + latexString + from_utf8("\"");
+ LYXERR0(error);
+ xs << XMLStream::ESCAPE_NONE << (from_utf8("<!-- Output Error: ") + error + from_utf8(" -->\n"));
+ } else {
+ // Generate the attributes for ranges. It is based on the terms that are indexed, but the ID must be unique
+ // to this indexing area (xml::cleanID does not guarantee this: for each call with the same arguments,
+ // the same legal ID is produced; here, as the input would be the same, the output must be, by design).
+ // Hence the thread-local storage, as the numbers must strictly be unique, and thus cannot be shared across
+ // a paragraph (making the solution used for HTML worthless). This solution is very similar to the one used in
+ // xml::cleanID.
+ docstring attrs = indexType;
+ if (hasStartRange || hasEndRange) {
+ // Append an ID if uniqueness is not guaranteed across the document.
+ static QThreadStorage<set<docstring>> tKnownTermLists;
+ static QThreadStorage<int> tID;
+
+ set<docstring> & knownTermLists = tKnownTermLists.localData();
+ int & ID = tID.localData();
+
+ if (!tID.hasLocalData()) {
+ tID.localData() = 0;
+ }
+
+ // Modify the index terms to add the unique ID if needed.
+ docstring newIndexTerms = indexTerms;
+ if (knownTermLists.find(indexTerms) != knownTermLists.end()) {
+ newIndexTerms += from_ascii(string("-") + to_string(ID));
+
+ // Only increment for the end of range, so that the same number is used for the start of range.
+ if (hasEndRange) {
+ ID++;
+ }
+ }
+
+ // Term list not yet known: add it to the set AFTER the end of range. After
+ if (knownTermLists.find(indexTerms) == knownTermLists.end() && hasEndRange) {
+ knownTermLists.insert(indexTerms);
+ }
+
+ // Generate the attributes.
+ docstring id = xml::cleanID(newIndexTerms);
+ if (hasStartRange) {
+ attrs += " class=\"startofrange\" xml:id=\"" + id + "\"";
+ } else {
+ attrs += " class=\"endofrange\" startref=\"" + id + "\"";
+ }
+ }
+
+ // Handle the index terms (including the specific index for this entry).
+ xs << xml::StartTag("indexterm", attrs);
+ if (terms.size() > 0) { // hasEndRange has no content.
+ xs << xml::StartTag("primary");
+ xs << terms[0];
+ xs << xml::EndTag("primary");
+ }
+ if (terms.size() > 1) {
+ xs << xml::StartTag("secondary");
+ xs << terms[1];
+ xs << xml::EndTag("secondary");
+ }
+ if (terms.size() > 2) {
+ xs << xml::StartTag("tertiary");
+ xs << terms[2];
+ xs << xml::EndTag("tertiary");
+ }
+
+ // Handle see and see also.
+ if (!see.empty()) {
+ xs << xml::StartTag("see");
+ xs << see;
+ xs << xml::EndTag("see");
+ }
+
+ if (!seeAlsoes.empty()) {
+ for (auto & entry : seeAlsoes) {
+ xs << xml::StartTag("seealso");
+ xs << entry;
+ xs << xml::EndTag("seealso");
+ }
+ }
+
+ // Close the entry.
+ xs << xml::EndTag("indexterm");
+ }
}
projects / lyx.git / blobdiff