src/insets/InsetQuotes.cpp

   1 /**
   2  * \file InsetQuotes.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Jean-Marc Lasgouttes
   7  *
   8  * Full author contact details are available in file CREDITS.
   9  */
  10
  11 #include <config.h>
  12
  13 #include "InsetQuotes.h"
  14
  15 #include "Buffer.h"
  16 #include "BufferParams.h"
  17 #include "BufferView.h"
  18 #include "Dimension.h"
  19 #include "Language.h"
  20 #include "LaTeXFeatures.h"
  21 #include "Lexer.h"
  22 #include "LyXRC.h"
  23 #include "MetricsInfo.h"
  24 #include "OutputParams.h"
  25
  26 #include "frontends/FontMetrics.h"
  27 #include "frontends/Painter.h"
  28
  29 #include "support/debug.h"
  30 #include "support/docstring.h"
  31 #include "support/docstream.h"
  32 #include "support/lstrings.h"
  33
  34 using namespace std;
  35 using namespace lyx::support;
  36
  37 namespace lyx {
  38
  39 namespace {
  40
  41 /* codes used to read/write quotes to LyX files
  42  * e    ``english''
  43  * s    ''spanish''
  44  * g    ,,german``
  45  * p    ,,polish''
  46  * f    <<french>>
  47  * a    >>danish<<
  48  */
  49
  50 char const * const language_char = "esgpfa";
  51 char const * const side_char = "lr" ;
  52 char const * const times_char = "sd";
  53
  54 // List of known quote chars
  55 char const * const quote_char = ",'`<>";
  56
  57 // Index of chars used for the quote. Index is [side, language]
  58 int quote_index[2][6] = {
  59         { 2, 1, 0, 0, 3, 4 },    // "'',,<>"
  60         { 1, 1, 2, 1, 4, 3 }     // "`'`'><"
  61 };
  62
  63 // Corresponding LaTeX code, for double and single quotes.
  64 char const * const latex_quote_t1[2][5] = {
  65         { "\\quotesinglbase ",  "'", "`",
  66     "\\guilsinglleft{}", "\\guilsinglright{}" },
  67   { ",,", "''", "``", "<<", ">>" }
  68 };
  69
  70 char const * const latex_quote_ot1[2][5] = {
  71         { "\\quotesinglbase ",  "'", "`",
  72     "\\guilsinglleft{}", "\\guilsinglright{}" },
  73   { "\\quotedblbase ", "''", "``",
  74     "\\guillemotleft{}", "\\guillemotright{}" }
  75 };
  76
  77 char const * const latex_quote_babel[2][5] = {
  78         { "\\glq ",  "'", "`", "\\flq{}", "\\frq{}" },
  79   { "\\glqq ", "''", "``", "\\flqq{}", "\\frqq{}" }
  80 };
  81
  82 } // namespace anon
  83
  84
  85 InsetQuotes::InsetQuotes(string const & str)
  86 {
  87         parseString(str);
  88 }
  89
  90
  91 InsetQuotes::InsetQuotes(QuoteLanguage l, QuoteSide s, QuoteTimes t)
  92         : language_(l), side_(s), times_(t)
  93 {
  94 }
  95
  96
  97 InsetQuotes::InsetQuotes(Buffer const & buf, char_type c)
  98         : language_(buf.params().quotes_language), times_(buf.params().quotes_times)
  99 {
 100         setSide(c);
 101 }
 102
 103
 104 InsetQuotes::InsetQuotes(char_type c, QuoteLanguage l, QuoteTimes t)
 105         : language_(l), times_(t)
 106 {
 107         setSide(c);
 108 }
 109
 110
 111 docstring InsetQuotes::name() const
 112 {
 113         return from_ascii("Quotes");
 114 }
 115
 116
 117 void InsetQuotes::setSide(char_type c)
 118 {
 119         // Decide whether left or right
 120         switch (c) {
 121         case ' ':
 122         case '(':
 123         case '[':
 124                 side_ = LeftQuote;   // left quote
 125                 break;
 126         default:
 127                 side_ = RightQuote;  // right quote
 128         }
 129 }
 130
 131
 132 void InsetQuotes::parseString(string const & s)
 133 {
 134         string str = s;
 135         if (str.length() != 3) {
 136                 lyxerr << "ERROR (InsetQuotes::InsetQuotes):"
 137                         " bad string length." << endl;
 138                 str = "eld";
 139         }
 140
 141         int i;
 142
 143         for (i = 0; i < 6; ++i) {
 144                 if (str[0] == language_char[i]) {
 145                         language_ = QuoteLanguage(i);
 146                         break;
 147                 }
 148         }
 149         if (i >= 6) {
 150                 lyxerr << "ERROR (InsetQuotes::InsetQuotes):"
 151                         " bad language specification." << endl;
 152                 language_ = EnglishQuotes;
 153         }
 154
 155         for (i = 0; i < 2; ++i) {
 156                 if (str[1] == side_char[i]) {
 157                         side_ = QuoteSide(i);
 158                         break;
 159                 }
 160         }
 161         if (i >= 2) {
 162                 lyxerr << "ERROR (InsetQuotes::InsetQuotes):"
 163                         " bad side specification." << endl;
 164                 side_ = LeftQuote;
 165         }
 166
 167         for (i = 0; i < 2; ++i) {
 168                 if (str[2] == times_char[i]) {
 169                         times_ = QuoteTimes(i);
 170                         break;
 171                 }
 172         }
 173         if (i >= 2) {
 174                 lyxerr << "ERROR (InsetQuotes::InsetQuotes):"
 175                         " bad times specification." << endl;
 176                 times_ = DoubleQuotes;
 177         }
 178 }
 179
 180
 181 docstring InsetQuotes::displayString() const
 182 {
 183         Language const * loclang = buffer().params().language;
 184         string disp;
 185         disp += quote_char[quote_index[side_][language_]];
 186         if (times_ == DoubleQuotes)
 187                 disp += disp;
 188
 189
 190         docstring retdisp;
 191         if (disp == "<<")
 192                 retdisp = docstring(1, 0x00ab); //'«';
 193         else if (disp == ">>")
 194                 retdisp = docstring(1, 0x00bb); //'»';
 195 #if 0
 196         // The below are supposed to work, but something fails.
 197         else if (disp == ",,")
 198                 retdisp = docstring(1, 0x201e);
 199         else if (disp == "''")
 200                 retdisp == docstring(1, 0x201d);
 201         else if (disp == "``")
 202                 retdisp == docstring(1, 0x201c);
 203         else if (disp == "<")
 204                 retdisp = docstring(1, 0x2039);
 205         else if (disp == ">")
 206                 retdisp = docstring(1, 0x203a);
 207         else if (disp == ",")
 208                 retdisp = docstring(1, 0x201a);
 209         else if (disp == "'")
 210                 retdisp = docstring(1, 0x2019);
 211         else if (disp == "`")
 212                 retdisp = docstring(1, 0x2018);
 213 #endif
 214         else
 215                 retdisp = from_ascii(disp);
 216
 217         // in french, spaces are added inside double quotes
 218         if (times_ == DoubleQuotes && prefixIs(loclang->code(), "fr")) {
 219                 if (side_ == LeftQuote)
 220                         retdisp += ' ';
 221                 else
 222                         retdisp.insert(size_t(0), 1, ' ');
 223         }
 224
 225         return retdisp;
 226 }
 227
 228
 229 void InsetQuotes::metrics(MetricsInfo & mi, Dimension & dim) const
 230 {
 231         FontInfo & font = mi.base.font;
 232         frontend::FontMetrics const & fm =
 233                 theFontMetrics(font);
 234         dim.asc = fm.maxAscent();
 235         dim.des = fm.maxDescent();
 236         dim.wid = 0;
 237
 238         // FIXME: should we add a language or a font parameter member?
 239         docstring const text = displayString();
 240         for (string::size_type i = 0; i < text.length(); ++i) {
 241                 if (text[i] == ' ')
 242                         dim.wid += fm.width('i');
 243                 else if (i == 0 || text[i] != text[i - 1])
 244                         dim.wid += fm.width(text[i]);
 245                 else
 246                         dim.wid += fm.width(',');
 247         }
 248 }
 249
 250
 251 void InsetQuotes::draw(PainterInfo & pi, int x, int y) const
 252 {
 253         // FIXME: should we add a language or a font parameter member?
 254         docstring const text = displayString();
 255
 256         if (text.length() == 2 && text[0] == text[1]) {
 257                 pi.pain.text(x, y, text[0], pi.base.font);
 258                 int const t = theFontMetrics(pi.base.font)
 259                         .width(',');
 260                 pi.pain.text(x + t, y, text[0], pi.base.font);
 261         } else {
 262                 pi.pain.text(x, y, text, pi.base.font);
 263         }
 264 }
 265
 266
 267 void InsetQuotes::write(ostream & os) const
 268 {
 269         string text;
 270         text += language_char[language_];
 271         text += side_char[side_];
 272         text += times_char[times_];
 273         os << "Quotes " << text;
 274 }
 275
 276
 277 void InsetQuotes::read(Lexer & lex)
 278 {
 279         lex.setContext("InsetQuotes::read");
 280         lex.next();
 281         parseString(lex.getString());
 282         lex >> "\\end_inset";
 283 }
 284
 285
 286 int InsetQuotes::latex(odocstream & os, OutputParams const & runparams) const
 287 {
 288         const int quoteind = quote_index[side_][language_];
 289         string qstr;
 290
 291         if (language_ == FrenchQuotes && times_ == DoubleQuotes
 292             && prefixIs(runparams.local_font->language()->code(), "fr")) {
 293                 if (side_ == LeftQuote)
 294                         qstr = "\\og "; //the spaces are important here
 295                 else
 296                         qstr = " \\fg{}"; //and here
 297         } else if (lyxrc.fontenc == "T1") {
 298                 qstr = latex_quote_t1[times_][quoteind];
 299 #ifdef DO_USE_DEFAULT_LANGUAGE
 300         } else if (doclang == "default") {
 301 #else
 302         } else if (!runparams.use_babel) {
 303 #endif
 304                 qstr = latex_quote_ot1[times_][quoteind];
 305         } else {
 306                 qstr = latex_quote_babel[times_][quoteind];
 307         }
 308
 309         // Always guard against unfortunate ligatures (!` ?`)
 310         if (prefixIs(qstr, "`"))
 311                 qstr.insert(0, "{}");
 312
 313         os << from_ascii(qstr);
 314         return 0;
 315 }
 316
 317
 318 int InsetQuotes::plaintext(odocstream & os, OutputParams const &) const
 319 {
 320         docstring const str = displayString();
 321         os << str;
 322         return str.size();
 323 }
 324
 325
 326 int InsetQuotes::docbook(odocstream & os, OutputParams const &) const
 327 {
 328         if (times_ == DoubleQuotes) {
 329                 if (side_ == LeftQuote)
 330                         os << "&ldquo;";
 331                 else
 332                         os << "&rdquo;";
 333         } else {
 334                 if (side_ == LeftQuote)
 335                         os << "&lsquo;";
 336                 else
 337                         os << "&rsquo;";
 338         }
 339         return 0;
 340 }
 341
 342
 343 void InsetQuotes::textString(odocstream & os) const
 344 {
 345         os << displayString();
 346 }
 347
 348
 349 void InsetQuotes::validate(LaTeXFeatures & features) const
 350 {
 351         bool const use_babel = features.useBabel();
 352         char type = quote_char[quote_index[side_][language_]];
 353
 354 #ifdef DO_USE_DEFAULT_LANGUAGE
 355         if (features.bufferParams().language->lang() == "default"
 356 #else
 357         if (!use_babel
 358 #endif
 359             && lyxrc.fontenc != "T1") {
 360                 if (times_ == SingleQuotes)
 361                         switch (type) {
 362                         case ',': features.require("quotesinglbase"); break;
 363                         case '<': features.require("guilsinglleft");  break;
 364                         case '>': features.require("guilsinglright"); break;
 365                         default: break;
 366                         }
 367                 else
 368                         switch (type) {
 369                         case ',': features.require("quotedblbase");   break;
 370                         case '<': features.require("guillemotleft");  break;
 371                         case '>': features.require("guillemotright"); break;
 372                         default: break;
 373                         }
 374         }
 375 }
 376
 377 } // namespace lyx