i18nutil/source/utility/paper.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include <osl/diagnose.h>
  22 #include <officecfg/Setup.hxx>
  23 #include <officecfg/System.hxx>
  24 #include <sal/config.h>
  25 #include <sal/macros.h>
  26 #include <rtl/ustring.hxx>
  27 #include <rtl/string.hxx>
  28
  29 #include "i18nutil/paper.hxx"
  30
  31 #include <utility>
  32 #include <cstdlib>
  33
  34 #ifdef UNX
  35 #include <stdio.h>
  36 #include <string.h>
  37 #include <locale.h>
  38 #if defined(LC_PAPER) && defined(_GNU_SOURCE)
  39 #include <langinfo.h>
  40 #endif
  41 #endif
  42
  43 struct PageDesc
  44 {
  45     long m_nWidth;
  46     long m_nHeight;
  47     const char *m_pPSName;
  48     const char *m_pAltPSName;
  49 };
  50
  51 #define PT2MM100( v ) \
  52     (long)(((v) * 35.27777778) + 0.5)
  53
  54 #define IN2MM100( v ) \
  55     ((long)(((v) * 2540) + 0.5))
  56
  57 #define MM2MM100( v ) \
  58     ((long)((v) * 100))
  59
  60 //PostScript Printer Description File Format Specification
  61 //http://partners.adobe.com/public/developer/en/ps/5003.PPD_Spec_v4.3.pdf
  62 //http://www.y-adagio.com/public/committees/docsii/doc_00-49/symp_ulaan/china_ppr.pdf (Kai)
  63 //http://www.sls.psi.ch/controls/help/howto/Howto_Print_a_A0_Poster_at_WSLA_012_2.pdf (Dia)
  64 static const PageDesc aDinTab[] =
  65 {
  66     { MM2MM100( 841 ),   MM2MM100( 1189 ),   "A0",  NULL },
  67     { MM2MM100( 594 ),   MM2MM100( 841 ),    "A1",  NULL },
  68     { MM2MM100( 420 ),   MM2MM100( 594 ),    "A2",  NULL },
  69     { MM2MM100( 297 ),   MM2MM100( 420 ),    "A3",  NULL },
  70     { MM2MM100( 210 ),   MM2MM100( 297 ),    "A4",  NULL },
  71     { MM2MM100( 148 ),   MM2MM100( 210 ),    "A5",  NULL },
  72     { MM2MM100( 250 ),   MM2MM100( 353 ),    "ISOB4",  NULL },
  73     { MM2MM100( 176 ),   MM2MM100( 250 ),    "ISOB5",  NULL },
  74     { IN2MM100( 8.5 ),   IN2MM100( 11 ),     "Letter",  "Note" },
  75     { IN2MM100( 8.5 ),   IN2MM100( 14 ),     "Legal",  NULL },
  76     { IN2MM100( 11 ),    IN2MM100( 17 ),     "Tabloid",  "11x17" },
  77     { 0,                 0,                  NULL, NULL }, //User
  78     { MM2MM100( 125 ),   MM2MM100( 176 ),    "ISOB6",  NULL },
  79     { MM2MM100( 229 ),   MM2MM100( 324 ),    "EnvC4",  "C4" },
  80     { MM2MM100( 162 ),   MM2MM100( 229 ),    "EnvC5",  "C5" },
  81     { MM2MM100( 114 ),   MM2MM100( 162 ),    "EnvC6",  "C6" },
  82     { MM2MM100( 114 ),   MM2MM100( 229 ),    "EnvC65", NULL },
  83     { MM2MM100( 110 ),   MM2MM100( 220 ),    "EnvDL",  "DL" },
  84     { MM2MM100( 180),    MM2MM100( 270 ),    NULL,  NULL }, //Dia
  85     { MM2MM100( 210),    MM2MM100( 280 ),    NULL,  NULL }, //Screen 4:3
  86     { IN2MM100( 17 ),    IN2MM100( 22 ),     "AnsiC",  "CSheet" },
  87     { IN2MM100( 22 ),    IN2MM100( 34 ),     "AnsiD",  "DSheet" },
  88     { IN2MM100( 34 ),    IN2MM100( 44 ),     "AnsiE",  "ESheet" },
  89     { IN2MM100( 7.25 ),  IN2MM100( 10.5 ),   "Executive",  NULL },
  90     //"Folio" is a different size in the PPD documentation than 8.5x11
  91     //This "FanFoldGermanLegal" is known in the Philippines as
  92     //"Legal" paper or "Long Bond Paper".  The "Legal" name causing untold
  93     //misery, given the differently sized US "Legal" paper
  94     { IN2MM100( 8.5 ),   IN2MM100( 13 ),     "FanFoldGermanLegal",  NULL },
  95     { IN2MM100( 3.875 ), IN2MM100( 7.5 ),    "EnvMonarch", "Monarch" },
  96     { IN2MM100( 3.625 ), IN2MM100( 6.5 ),    "EnvPersonal",  "Personal" },
  97     { IN2MM100( 3.875 ), IN2MM100( 8.875 ),  "Env9",  NULL },
  98     { IN2MM100( 4.125 ), IN2MM100( 9.5 ),    "Env10",  "Comm10" },
  99     { IN2MM100( 4.5 ),   IN2MM100( 10.375 ), "Env11",  NULL },
 100     { IN2MM100( 4.75 ),  IN2MM100( 11 ),     "Env12",  NULL },
 101     { MM2MM100( 184 ),   MM2MM100( 260 ),    NULL,  NULL }, //Kai16
 102     { MM2MM100( 130 ),   MM2MM100( 184 ),    NULL,  NULL }, //Kai32
 103     { MM2MM100( 140 ),   MM2MM100( 203 ),    NULL,  NULL }, //BigKai32
 104     { MM2MM100( 257 ),   MM2MM100( 364 ),    "B4",  NULL }, //JIS
 105     { MM2MM100( 182 ),   MM2MM100( 257 ),    "B5",  NULL }, //JIS
 106     { MM2MM100( 128 ),   MM2MM100( 182 ),    "B6",  NULL }, //JIS
 107     { IN2MM100( 17 ),    IN2MM100( 11 ),     "Ledger",  NULL },
 108     { IN2MM100( 5.5 ),   IN2MM100( 8.5 ),    "Statement",  NULL },
 109     { PT2MM100( 610 ),   PT2MM100( 780 ),    "Quarto",  NULL },
 110     { IN2MM100( 10 ),    IN2MM100( 14 ),     "10x14",  NULL },
 111     { IN2MM100( 5.5 ),   IN2MM100( 11.5 ),   "Env14",  NULL },
 112     { MM2MM100( 324 ),   MM2MM100( 458 ),    "EnvC3",  "C3" },
 113     { MM2MM100( 110 ),   MM2MM100( 230 ),    "EnvItalian",  NULL },
 114     { IN2MM100( 14.875 ),IN2MM100( 11 ),     "FanFoldUS",  NULL },
 115     { IN2MM100( 8.5 ),   IN2MM100( 13 ),     "FanFoldGerman",  NULL },
 116     { MM2MM100( 100 ),   MM2MM100( 148 ),    "Postcard",  NULL },
 117     { IN2MM100( 9 ),     IN2MM100( 11 ),     "9x11",  NULL },
 118     { IN2MM100( 10 ),    IN2MM100( 11 ),     "10x11",  NULL },
 119     { IN2MM100( 15 ),    IN2MM100( 11 ),     "15x11",  NULL },
 120     { MM2MM100( 220 ),   MM2MM100( 220 ),    "EnvInvite",  NULL },
 121     { MM2MM100( 227 ),   MM2MM100( 356 ),    "SuperA",  NULL },
 122     { MM2MM100( 305 ),   MM2MM100( 487 ),    "SuperB",  NULL },
 123     { IN2MM100( 8.5 ),   IN2MM100( 12.69 ),  "LetterPlus",  NULL },
 124     { MM2MM100( 210 ),   MM2MM100( 330 ),    "A4Plus",  NULL },
 125     { MM2MM100( 200 ),   MM2MM100( 148 ),    "DoublePostcard",  NULL },
 126     { MM2MM100( 105 ),   MM2MM100( 148 ),    "A6",  NULL },
 127     { IN2MM100( 12 ),    IN2MM100( 11 ),     "12x11",  NULL },
 128     { MM2MM100( 74 ),    MM2MM100( 105 ),    "A7",  NULL },
 129     { MM2MM100( 52 ),    MM2MM100( 74 ),     "A8",  NULL },
 130     { MM2MM100( 37 ),    MM2MM100( 52 ),     "A9",  NULL },
 131     { MM2MM100( 26 ),    MM2MM100( 37 ),     "A10",  NULL },
 132     { MM2MM100( 1000 ),  MM2MM100( 1414 ),   "ISOB0",  NULL },
 133     { MM2MM100( 707 ),   MM2MM100( 1000 ),   "ISOB1",  NULL },
 134     { MM2MM100( 500 ),   MM2MM100( 707 ),    "ISOB2",  NULL },
 135     { MM2MM100( 353 ),   MM2MM100( 500 ),    "ISOB3",  NULL },
 136     { MM2MM100( 88 ),    MM2MM100( 125 ),    "ISOB7",  NULL },
 137     { MM2MM100( 62 ),    MM2MM100( 88 ),     "ISOB8",  NULL },
 138     { MM2MM100( 44 ),    MM2MM100( 62 ),     "ISOB9",  NULL },
 139     { MM2MM100( 31 ),    MM2MM100( 44 ),     "ISOB10", NULL },
 140     { MM2MM100( 458 ),   MM2MM100( 648 ),    "EnvC2",  "C2" },
 141     { MM2MM100( 81 ),    MM2MM100( 114 ),    "EnvC7",  "C7" },
 142     { MM2MM100( 57 ),    MM2MM100( 81 ),     "EnvC8",  "C8" },
 143     { IN2MM100( 9 ),     IN2MM100( 12 ),     "ARCHA",  NULL },
 144     { IN2MM100( 12 ),    IN2MM100( 18 ),     "ARCHB",  NULL },
 145     { IN2MM100( 18 ),    IN2MM100( 24 ),     "ARCHC",  NULL },
 146     { IN2MM100( 24 ),    IN2MM100( 36 ),     "ARCHD",  NULL },
 147     { IN2MM100( 36 ),    IN2MM100( 48 ),     "ARCHE",  NULL },
 148     { MM2MM100( 157.5),  MM2MM100( 280 ),    NULL,  NULL }, //Screen 16:9
 149     { MM2MM100( 175 ),   MM2MM100( 280 ),    NULL,  NULL }  //Screen 16:10
 150
 151 };
 152
 153 static const size_t nTabSize = SAL_N_ELEMENTS(aDinTab);
 154
 155 #define MAXSLOPPY 21
 156
 157 bool PaperInfo::doSloppyFit()
 158 {
 159     if (m_eType != PAPER_USER)
 160         return true;
 161
 162     for ( size_t i = 0; i < nTabSize; ++i )
 163     {
 164         if (i == PAPER_USER) continue;
 165
 166         long lDiffW = labs(aDinTab[i].m_nWidth - m_nPaperWidth);
 167         long lDiffH = labs(aDinTab[i].m_nHeight - m_nPaperHeight);
 168
 169         if ( lDiffW < MAXSLOPPY && lDiffH < MAXSLOPPY )
 170         {
 171             m_nPaperWidth = aDinTab[i].m_nWidth;
 172             m_nPaperHeight = aDinTab[i].m_nHeight;
 173             m_eType = (Paper)i;
 174             return true;
 175         }
 176     }
 177
 178     return false;
 179 }
 180
 181 bool PaperInfo::sloppyEqual(const PaperInfo &rOther) const
 182 {
 183     return
 184     (
 185       (labs(m_nPaperWidth - rOther.m_nPaperWidth) < MAXSLOPPY) &&
 186       (labs(m_nPaperHeight - rOther.m_nPaperHeight) < MAXSLOPPY)
 187     );
 188 }
 189
 190 long PaperInfo::sloppyFitPageDimension(long nDimension)
 191 {
 192     for ( size_t i = 0; i < nTabSize; ++i )
 193     {
 194         if (i == PAPER_USER) continue;
 195         long lDiff;
 196
 197         lDiff = labs(aDinTab[i].m_nWidth - nDimension);
 198         if ( lDiff < MAXSLOPPY )
 199             return aDinTab[i].m_nWidth;
 200
 201         lDiff = labs(aDinTab[i].m_nHeight - nDimension);
 202         if ( lDiff < MAXSLOPPY )
 203             return aDinTab[i].m_nHeight;
 204     }
 205     return nDimension;
 206 }
 207
 208 PaperInfo PaperInfo::getSystemDefaultPaper()
 209 {
 210     OUString aLocaleStr = officecfg::Setup::L10N::ooSetupSystemLocale::get();
 211
 212 #ifdef UNX
 213     // if set to "use system", get papersize from system
 214     if (aLocaleStr.isEmpty())
 215     {
 216         static bool bInitialized = false;
 217         static PaperInfo aInstance(PAPER_A4);
 218
 219         if (bInitialized)
 220             return aInstance;
 221
 222         // try libpaper
 223         // #i78617# workaround missing paperconf command
 224         FILE* pPipe = popen( "paperconf 2>/dev/null", "r" );
 225         if( pPipe )
 226         {
 227             Paper ePaper = PAPER_USER;
 228
 229             char aBuffer[ 1024 ];
 230             aBuffer[0] = 0;
 231             char *pBuffer = fgets( aBuffer, sizeof(aBuffer), pPipe );
 232             pclose( pPipe );
 233
 234             if (pBuffer && *pBuffer != 0)
 235             {
 236                 OString aPaper(pBuffer);
 237                 aPaper = aPaper.trim();
 238                 static const struct { const char *pName; Paper ePaper; } aCustoms [] =
 239                 {
 240                     { "B0",   PAPER_B0_ISO },
 241                     { "B1",   PAPER_B1_ISO },
 242                     { "B2",   PAPER_B2_ISO },
 243                     { "B3",   PAPER_B3_ISO },
 244                     { "B4",   PAPER_B4_ISO },
 245                     { "B5",   PAPER_B5_ISO },
 246                     { "B6",   PAPER_B6_ISO },
 247                     { "B7",   PAPER_B7_ISO },
 248                     { "B8",   PAPER_B8_ISO },
 249                     { "B9",   PAPER_B9_ISO },
 250                     { "B10",  PAPER_B10_ISO },
 251                     { "folio", PAPER_FANFOLD_LEGAL_DE },
 252                     { "flsa",  PAPER_FANFOLD_LEGAL_DE },
 253                     { "flse",  PAPER_FANFOLD_LEGAL_DE }
 254                 };
 255
 256                 bool bHalve = false;
 257
 258                 size_t nExtraTabSize = SAL_N_ELEMENTS(aCustoms);
 259                 for (size_t i = 0; i < nExtraTabSize; ++i)
 260                 {
 261                     if (rtl_str_compareIgnoreAsciiCase(aCustoms[i].pName, aPaper.getStr()) == 0)
 262                     {
 263                         ePaper = aCustoms[i].ePaper;
 264                         break;
 265                     }
 266                 }
 267
 268                 if (ePaper == PAPER_USER)
 269                 {
 270                     bHalve = !rtl_str_shortenedCompareIgnoreAsciiCase_WithLength(
 271                         aPaper.getStr(), aPaper.getLength(),  "half", 4, 4);
 272                     if (bHalve)
 273                         aPaper = aPaper.copy(4);
 274                     ePaper = PaperInfo::fromPSName(aPaper);
 275                 }
 276
 277                 if (ePaper != PAPER_USER)
 278                 {
 279                     aInstance = PaperInfo(ePaper);
 280                     if (bHalve)
 281                         aInstance = PaperInfo(aInstance.getHeight()/2, aInstance.getWidth());
 282                     bInitialized = true;
 283                     return aInstance;
 284                 }
 285             }
 286         }
 287
 288 #if defined(LC_PAPER) && defined(_GNU_SOURCE)
 289
 290         union paperword { char *string; int word; };
 291
 292         // try LC_PAPER
 293         paperword w, h;
 294         w.string = nl_langinfo(_NL_PAPER_WIDTH);
 295         h.string = nl_langinfo(_NL_PAPER_HEIGHT);
 296
 297         //glibc stores sizes as integer mm units
 298         w.word *= 100;
 299         h.word *= 100;
 300
 301         for ( size_t i = 0; i < nTabSize; ++i )
 302         {
 303             if (i == PAPER_USER) continue;
 304
 305             //glibc stores sizes as integer mm units, and so is inaccurate. To
 306             //find a standard paper size we calculate the standard paper sizes
 307             //into equally inaccurate mm and compare
 308             long width = (aDinTab[i].m_nWidth + 50) / 100;
 309             long height = (aDinTab[i].m_nHeight + 50) / 100;
 310
 311             if (width == w.word/100 && height == h.word/100)
 312             {
 313                 w.word = aDinTab[i].m_nWidth;
 314                 h.word = aDinTab[i].m_nHeight;
 315                 break;
 316             }
 317         }
 318
 319         aInstance = PaperInfo(w.word, h.word);
 320         bInitialized = true;
 321         return aInstance;
 322 #endif
 323     }
 324 #endif
 325
 326     // if set to "use system", try to get locale from system
 327     if (aLocaleStr.isEmpty())
 328         aLocaleStr = officecfg::System::L10N::Locale::get();
 329
 330     if (aLocaleStr.isEmpty())
 331         aLocaleStr = OUString::intern(RTL_CONSTASCII_USTRINGPARAM("en-US"));
 332
 333     // convert locale string to locale struct
 334     ::com::sun::star::lang::Locale aSysLocale;
 335     sal_Int32 nDashPos = aLocaleStr.indexOf( '-' );
 336     if( nDashPos < 0 ) nDashPos = aLocaleStr.getLength();
 337     aSysLocale.Language = aLocaleStr.copy( 0, nDashPos );
 338     if( nDashPos + 1 < aLocaleStr.getLength() )
 339         aSysLocale.Country = aLocaleStr.copy( nDashPos + 1 );
 340
 341     return PaperInfo::getDefaultPaperForLocale(aSysLocale);
 342 }
 343
 344 PaperInfo::PaperInfo(Paper eType) : m_eType(eType)
 345 {
 346     OSL_ENSURE( sizeof(aDinTab) / sizeof(aDinTab[0]) == NUM_PAPER_ENTRIES,
 347             "mismatch between array entries and enum values" );
 348
 349     m_nPaperWidth = aDinTab[m_eType].m_nWidth;
 350     m_nPaperHeight = aDinTab[m_eType].m_nHeight;
 351 }
 352
 353 PaperInfo::PaperInfo(long nPaperWidth, long nPaperHeight)
 354     : m_eType(PAPER_USER),
 355       m_nPaperWidth(nPaperWidth),
 356       m_nPaperHeight(nPaperHeight)
 357 {
 358     for ( size_t i = 0; i < nTabSize; ++i )
 359     {
 360         if (
 361              (nPaperWidth == aDinTab[i].m_nWidth) &&
 362              (nPaperHeight == aDinTab[i].m_nHeight)
 363            )
 364         {
 365             m_eType = static_cast<Paper>(i);
 366             break;
 367         }
 368     }
 369 }
 370
 371 OString PaperInfo::toPSName(Paper ePaper)
 372 {
 373     return static_cast<size_t>(ePaper) < nTabSize ?
 374         OString(aDinTab[ePaper].m_pPSName) : OString();
 375 }
 376
 377 Paper PaperInfo::fromPSName(const OString &rName)
 378 {
 379     if (rName.isEmpty())
 380         return PAPER_USER;
 381
 382     for ( size_t i = 0; i < nTabSize; ++i )
 383     {
 384         if (aDinTab[i].m_pPSName &&
 385           !rtl_str_compareIgnoreAsciiCase(aDinTab[i].m_pPSName, rName.getStr()))
 386         {
 387             return static_cast<Paper>(i);
 388         }
 389         else if (aDinTab[i].m_pAltPSName &&
 390           !rtl_str_compareIgnoreAsciiCase(aDinTab[i].m_pAltPSName, rName.getStr()))
 391         {
 392             return static_cast<Paper>(i);
 393         }
 394     }
 395
 396     return PAPER_USER;
 397 }
 398
 399 //http://wiki.openoffice.org/wiki/DefaultPaperSize
 400 //http://www.unicode.org/cldr/data/charts/supplemental/territory_language_information.html
 401 //http://sourceware.org/git/?p=glibc.git;a=tree;f=localedata/locales
 402 //http://en.wikipedia.org/wiki/Paper_size
 403 //http://msdn.microsoft.com/en-us/library/cc195164.aspx
 404 PaperInfo PaperInfo::getDefaultPaperForLocale(
 405     const ::com::sun::star::lang::Locale & rLocale)
 406 {
 407     Paper eType = PAPER_A4;
 408
 409     if (
 410         //United States, Letter
 411         rLocale.Country == "US" ||
 412         //Puerto Rico:
 413         //    http://unicode.org/cldr/trac/ticket/1710
 414         //    http://sources.redhat.com/ml/libc-hacker/2001-07/msg00046.html
 415         rLocale.Country == "PR" ||
 416         //Canada:
 417         //    http://sources.redhat.com/ml/libc-hacker/2001-07/msg00053.html
 418         rLocale.Country == "CA" ||
 419         //Venuzuela:
 420         //    http://unicode.org/cldr/trac/ticket/1710
 421         //    https://www.redhat.com/archives/fedora-devel-list/2008-August/msg00019.html
 422         rLocale.Country == "VE" ||
 423         //Chile:
 424         //    http://unicode.org/cldr/trac/ticket/1710
 425         //    https://www.redhat.com/archives/fedora-devel-list/2008-August/msg00240.html
 426         rLocale.Country == "CL" ||
 427         //Mexico:
 428         //    http://unicode.org/cldr/trac/ticket/1710
 429         //    http://qa.openoffice.org/issues/show_bug.cgi?id=49739
 430         rLocale.Country == "MX" ||
 431         //Colombia:
 432         //    http://unicode.org/cldr/trac/ticket/1710
 433         //    http://qa.openoffice.org/issues/show_bug.cgi?id=69703
 434         rLocale.Country == "CO" ||
 435         //Philippines:
 436         //    http://unicode.org/cldr/trac/ticket/1710
 437         //    http://ubuntuliving.blogspot.com/2008/07/default-paper-size-in-evince.html
 438         //    http://www.gov.ph/faqs/driverslicense.asp
 439         rLocale.Country == "PH" ||
 440         //Belize:
 441         //    http://unicode.org/cldr/trac/ticket/2585
 442         //    http://www.belize.gov.bz/ct.asp?xItem=1666&ctNode=486&mp=27
 443         rLocale.Country == "BZ" ||
 444         //Costa Rica:
 445         //    http://unicode.org/cldr/trac/ticket/2585
 446         //    http://sources.redhat.com/bugzilla/show_bug.cgi?id=11258
 447         rLocale.Country == "CR" ||
 448         //Guatemala:
 449         //    http://unicode.org/cldr/trac/ticket/2585
 450         //    http://sources.redhat.com/bugzilla/show_bug.cgi?id=10936
 451         rLocale.Country == "GT" ||
 452         //Nicaragua:
 453         //    http://unicode.org/cldr/trac/ticket/2585
 454         rLocale.Country == "NI" ||
 455         //Panama:
 456         //    http://unicode.org/cldr/trac/ticket/2585
 457         //    http://www.minsa.gob.pa/minsa/tl_files/documents/baner_informativo/INSTRUMENTO%20DE%20INVESTIGACION%20DE%20RAAV%202009.pdf
 458         rLocale.Country == "PA" ||
 459         //El Salvador:
 460         //    http://unicode.org/cldr/trac/ticket/2585
 461         //    http://www.tse.gob.sv
 462         rLocale.Country == "SV"
 463        )
 464     {
 465         eType = PAPER_LETTER;
 466     }
 467
 468     return eType;
 469 }
 470
 471 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */