[1408] | 1 | /* -*- C++ -*- |
---|
[1435] | 2 | * lemon/lemon_reader.h - Part of LEMON, a generic C++ optimization library |
---|
[1408] | 3 | * |
---|
| 4 | * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
---|
| 5 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
---|
| 6 | * |
---|
| 7 | * Permission to use, modify and distribute this software is granted |
---|
| 8 | * provided that this copyright notice appears in all copies. For |
---|
| 9 | * precise terms see the accompanying LICENSE file. |
---|
| 10 | * |
---|
| 11 | * This software is provided "AS IS" with no warranty of any kind, |
---|
| 12 | * express or implied, and with no claim as to its suitability for any |
---|
| 13 | * purpose. |
---|
| 14 | * |
---|
| 15 | */ |
---|
| 16 | |
---|
| 17 | ///\ingroup io_group |
---|
| 18 | ///\file |
---|
| 19 | ///\brief Lemon Format reader. |
---|
| 20 | |
---|
[1421] | 21 | |
---|
[1408] | 22 | #ifndef LEMON_LEMON_READER_H |
---|
| 23 | #define LEMON_LEMON_READER_H |
---|
| 24 | |
---|
[1421] | 25 | |
---|
[1408] | 26 | #include <iostream> |
---|
| 27 | #include <fstream> |
---|
| 28 | #include <string> |
---|
| 29 | #include <vector> |
---|
| 30 | #include <algorithm> |
---|
| 31 | #include <map> |
---|
| 32 | #include <memory> |
---|
| 33 | |
---|
| 34 | #include <lemon/error.h> |
---|
[1421] | 35 | #include <lemon/graph_utils.h> |
---|
| 36 | #include <lemon/utility.h> |
---|
[1409] | 37 | #include <lemon/bits/item_reader.h> |
---|
[1408] | 38 | |
---|
[1476] | 39 | #include <lemon/concept_check.h> |
---|
| 40 | #include <lemon/concept/maps.h> |
---|
[1408] | 41 | |
---|
| 42 | namespace lemon { |
---|
| 43 | |
---|
[1421] | 44 | namespace _reader_bits { |
---|
[1476] | 45 | |
---|
| 46 | template <typename Item> |
---|
| 47 | class ItemIdReader { |
---|
| 48 | public: |
---|
| 49 | |
---|
| 50 | bool isIdReader() { return true; } |
---|
| 51 | |
---|
[1492] | 52 | void readId(std::istream&, Item&) {} |
---|
[1476] | 53 | |
---|
| 54 | template <class _ItemIdReader> |
---|
| 55 | struct Constraints { |
---|
| 56 | void constraints() { |
---|
| 57 | bool b = reader.isIdReader(); |
---|
| 58 | ignore_unused_variable_warning(b); |
---|
[1492] | 59 | Item item; |
---|
| 60 | reader.readId(is, item); |
---|
[1476] | 61 | } |
---|
| 62 | _ItemIdReader& reader; |
---|
| 63 | std::istream& is; |
---|
| 64 | }; |
---|
| 65 | |
---|
| 66 | }; |
---|
[1492] | 67 | |
---|
| 68 | template <typename Item> |
---|
| 69 | class ItemReader { |
---|
| 70 | public: |
---|
| 71 | void read(std::istream&, Item&) {} |
---|
| 72 | |
---|
| 73 | template <class _ItemReader> |
---|
| 74 | struct Constraints { |
---|
| 75 | void constraints() { |
---|
| 76 | Item item; |
---|
| 77 | reader.read(is, item); |
---|
| 78 | } |
---|
| 79 | _ItemReader& reader; |
---|
| 80 | std::istream& is; |
---|
| 81 | }; |
---|
| 82 | |
---|
| 83 | }; |
---|
[1421] | 84 | |
---|
| 85 | template <typename T> |
---|
| 86 | bool operator<(T, T) { |
---|
| 87 | throw DataFormatError("Id is not comparable"); |
---|
| 88 | } |
---|
| 89 | |
---|
| 90 | template <typename T> |
---|
| 91 | struct Less { |
---|
| 92 | bool operator()(const T& p, const T& q) const { |
---|
| 93 | return p < q; |
---|
| 94 | } |
---|
| 95 | }; |
---|
| 96 | |
---|
| 97 | template <typename M1, typename M2> |
---|
| 98 | class WriteComposeMap { |
---|
| 99 | public: |
---|
| 100 | typedef True NeedCopy; |
---|
| 101 | |
---|
| 102 | typedef typename M2::Key Key; |
---|
| 103 | typedef typename M1::Value Value; |
---|
| 104 | |
---|
| 105 | WriteComposeMap(typename SmartParameter<M1>::Type _m1, const M2& _m2) |
---|
| 106 | : m1(_m1), m2(_m2) {} |
---|
| 107 | |
---|
| 108 | void set(const Key& key, const Value& value) { |
---|
| 109 | m1.set(m2[key], value); |
---|
| 110 | } |
---|
| 111 | |
---|
| 112 | private: |
---|
| 113 | |
---|
| 114 | typename SmartReference<M1>::Type m1; |
---|
| 115 | typename SmartConstReference<M2>::Type m2; |
---|
| 116 | |
---|
| 117 | }; |
---|
| 118 | |
---|
| 119 | template <typename M1, typename M2> |
---|
| 120 | WriteComposeMap<M1, M2> writeComposeMap(M1& m1, const M2& m2) { |
---|
| 121 | return WriteComposeMap<M1, M2>(m1, m2); |
---|
| 122 | } |
---|
| 123 | |
---|
| 124 | template <typename M1, typename M2> |
---|
| 125 | WriteComposeMap<M1, M2> writeComposeMap(const M1& m1, const M2& m2) { |
---|
| 126 | return WriteComposeMap<M1, M2>(m1, m2); |
---|
| 127 | } |
---|
| 128 | |
---|
| 129 | } |
---|
| 130 | |
---|
[1409] | 131 | /// \ingroup io_group |
---|
[1408] | 132 | /// \brief Lemon Format reader class. |
---|
| 133 | /// |
---|
[1409] | 134 | /// The Lemon Format contains several sections. We do not want to |
---|
| 135 | /// determine what sections are in a lemon file we give only a framework |
---|
| 136 | /// to read a section oriented format. |
---|
| 137 | /// |
---|
| 138 | /// In the Lemon Format each section starts with a line contains a \c \@ |
---|
| 139 | /// character on the first not white space position. This line is the |
---|
| 140 | /// header line of the section. Each next lines belong to this section |
---|
| 141 | /// while it does not starts with \c \@ character. This line can start a |
---|
| 142 | /// new section or if it can close the file with the \c \@end line. |
---|
[1427] | 143 | /// The file format ignore the empty and comment lines. The line is |
---|
| 144 | /// comment line if it starts with a \c # character. |
---|
[1409] | 145 | /// |
---|
| 146 | /// The framework provides an abstract LemonReader::SectionReader class |
---|
| 147 | /// what defines the interface of a SectionReader. The SectionReader |
---|
| 148 | /// has the \c header() member function what get a header line string and |
---|
| 149 | /// decides if it want to process the next section. Several SectionReaders |
---|
| 150 | /// can be attached to an LemonReader and the first attached what can |
---|
| 151 | /// process the section will be used. Its \c read() member will called |
---|
[1427] | 152 | /// with a stream contains the section. From this stream the empty and |
---|
| 153 | /// comment lines are filtered out. |
---|
[1409] | 154 | /// |
---|
| 155 | /// \relates GraphReader |
---|
| 156 | /// \relates NodeSetReader |
---|
| 157 | /// \relates EdgeSetReader |
---|
| 158 | /// \relates NodesReader |
---|
| 159 | /// \relates EdgesReader |
---|
| 160 | /// \relates AttributeReader |
---|
[1408] | 161 | class LemonReader { |
---|
| 162 | private: |
---|
| 163 | |
---|
| 164 | class FilterStreamBuf : public std::streambuf { |
---|
| 165 | public: |
---|
| 166 | |
---|
| 167 | typedef std::streambuf Parent; |
---|
| 168 | typedef Parent::char_type char_type; |
---|
| 169 | FilterStreamBuf(std::istream& is, int& num) |
---|
| 170 | : _is(is), _base(0), _eptr(0), |
---|
| 171 | _num(num), skip_state(after_endl) {} |
---|
| 172 | |
---|
| 173 | protected: |
---|
| 174 | |
---|
| 175 | enum skip_state_type { |
---|
| 176 | no_skip, |
---|
| 177 | after_endl, |
---|
[1427] | 178 | comment_line |
---|
[1408] | 179 | }; |
---|
| 180 | |
---|
| 181 | char_type small_buf[1]; |
---|
| 182 | |
---|
| 183 | |
---|
| 184 | std::istream& _is; |
---|
| 185 | |
---|
| 186 | char_type* _base; |
---|
| 187 | char_type* _eptr; |
---|
| 188 | |
---|
| 189 | int& _num; |
---|
| 190 | |
---|
| 191 | skip_state_type skip_state; |
---|
| 192 | |
---|
| 193 | |
---|
| 194 | char_type* base() { return _base; } |
---|
| 195 | |
---|
| 196 | char_type* eptr() { return _eptr; } |
---|
| 197 | |
---|
| 198 | int blen() { return _eptr - _base; } |
---|
| 199 | |
---|
| 200 | void setb(char_type* buf, int len) { |
---|
| 201 | _base = buf; |
---|
| 202 | _eptr = buf + len; |
---|
| 203 | } |
---|
| 204 | |
---|
| 205 | virtual std::streambuf* setbuf(char *buf, int len) { |
---|
| 206 | if (base()) return 0; |
---|
| 207 | if (buf != 0 && len >= (int)sizeof(small_buf)) { |
---|
| 208 | setb(buf, len); |
---|
| 209 | } else { |
---|
| 210 | setb(small_buf, sizeof(small_buf)); |
---|
| 211 | } |
---|
| 212 | setg(0, 0, 0); |
---|
| 213 | return this; |
---|
| 214 | } |
---|
| 215 | |
---|
| 216 | bool put_char(char c) { |
---|
| 217 | switch (skip_state) { |
---|
| 218 | case no_skip: |
---|
| 219 | switch (c) { |
---|
| 220 | case '\n': |
---|
| 221 | skip_state = after_endl; |
---|
| 222 | return true; |
---|
| 223 | default: |
---|
| 224 | return true; |
---|
| 225 | } |
---|
| 226 | case after_endl: |
---|
| 227 | switch (c) { |
---|
| 228 | case '@': |
---|
| 229 | return false; |
---|
| 230 | case '\n': |
---|
| 231 | return false; |
---|
| 232 | case '#': |
---|
[1427] | 233 | skip_state = comment_line; |
---|
[1408] | 234 | return false; |
---|
| 235 | default: |
---|
| 236 | if (!isspace(c)) { |
---|
| 237 | skip_state = no_skip; |
---|
| 238 | return true; |
---|
| 239 | } else { |
---|
| 240 | return false; |
---|
| 241 | } |
---|
| 242 | } |
---|
| 243 | break; |
---|
[1427] | 244 | case comment_line: |
---|
[1408] | 245 | switch (c) { |
---|
| 246 | case '\n': |
---|
| 247 | skip_state = after_endl; |
---|
| 248 | return false; |
---|
| 249 | default: |
---|
| 250 | return false; |
---|
| 251 | } |
---|
| 252 | } |
---|
| 253 | return false; |
---|
| 254 | } |
---|
| 255 | |
---|
| 256 | virtual int underflow() { |
---|
| 257 | char c; |
---|
| 258 | if (_is.read(&c, 1)) { |
---|
| 259 | _is.putback(c); |
---|
| 260 | if (c == '@') { |
---|
| 261 | return EOF; |
---|
| 262 | } |
---|
| 263 | } else { |
---|
| 264 | return EOF; |
---|
| 265 | } |
---|
| 266 | char_type *ptr; |
---|
| 267 | for (ptr = base(); ptr != eptr(); ++ptr) { |
---|
| 268 | if (_is.read(&c, 1)) { |
---|
| 269 | if (c == '\n') ++_num; |
---|
| 270 | if (put_char(c)) { |
---|
| 271 | *ptr = c; |
---|
| 272 | } else { |
---|
| 273 | if (skip_state == after_endl && c == '@') { |
---|
| 274 | _is.putback('@'); |
---|
| 275 | break; |
---|
| 276 | } |
---|
| 277 | --ptr; |
---|
| 278 | } |
---|
| 279 | } else { |
---|
| 280 | break; |
---|
| 281 | } |
---|
| 282 | } |
---|
| 283 | setg(base(), base(), ptr); |
---|
| 284 | return *base(); |
---|
| 285 | } |
---|
| 286 | |
---|
| 287 | virtual int sync() { |
---|
| 288 | return EOF; |
---|
| 289 | } |
---|
| 290 | }; |
---|
| 291 | |
---|
| 292 | public: |
---|
| 293 | |
---|
[1409] | 294 | /// \brief Abstract base class for reading a section. |
---|
| 295 | /// |
---|
| 296 | /// This class has an \c header() member function what get a |
---|
| 297 | /// header line string and decides if it want to process the next |
---|
| 298 | /// section. Several SectionReaders can be attached to an LemonReader |
---|
| 299 | /// and the first attached what can process the section will be used. |
---|
| 300 | /// Its \c read() member will called with a stream contains the section. |
---|
| 301 | /// From this stream the empty lines and comments are filtered out. |
---|
[1408] | 302 | class SectionReader { |
---|
[1409] | 303 | friend class LemonReader; |
---|
| 304 | protected: |
---|
| 305 | /// \brief Constructor for SectionReader. |
---|
| 306 | /// |
---|
| 307 | /// Constructor for SectionReader. It attach this reader to |
---|
| 308 | /// the given LemonReader. |
---|
| 309 | SectionReader(LemonReader& reader) { |
---|
| 310 | reader.attach(*this); |
---|
| 311 | } |
---|
| 312 | |
---|
| 313 | /// \brief Gives back true when the SectionReader can process |
---|
| 314 | /// the section with the given header line. |
---|
| 315 | /// |
---|
| 316 | /// It gives back true when the SectionReader can process |
---|
| 317 | /// the section with the given header line. |
---|
[1408] | 318 | virtual bool header(const std::string& line) = 0; |
---|
[1409] | 319 | |
---|
| 320 | /// \brief Reader function of the section. |
---|
| 321 | /// |
---|
| 322 | /// It reads the content of the section. |
---|
[1408] | 323 | virtual void read(std::istream& is) = 0; |
---|
| 324 | }; |
---|
| 325 | |
---|
[1409] | 326 | /// \brief Constructor for LemonReader. |
---|
| 327 | /// |
---|
| 328 | /// Constructor for LemonReader which reads from the given stream. |
---|
[1408] | 329 | LemonReader(std::istream& _is) |
---|
| 330 | : is(&_is), own_is(false) {} |
---|
| 331 | |
---|
[1409] | 332 | /// \brief Constructor for LemonReader. |
---|
| 333 | /// |
---|
| 334 | /// Constructor for LemonReader which reads from the given file. |
---|
[1408] | 335 | LemonReader(const std::string& filename) |
---|
| 336 | : is(0), own_is(true) { |
---|
| 337 | is = new std::ifstream(filename.c_str()); |
---|
| 338 | } |
---|
| 339 | |
---|
[1409] | 340 | /// \brief Desctructor for LemonReader. |
---|
| 341 | /// |
---|
| 342 | /// Desctructor for LemonReader. |
---|
[1408] | 343 | ~LemonReader() { |
---|
| 344 | if (own_is) { |
---|
| 345 | delete is; |
---|
| 346 | } |
---|
| 347 | } |
---|
| 348 | |
---|
| 349 | private: |
---|
| 350 | LemonReader(const LemonReader&); |
---|
| 351 | void operator=(const LemonReader&); |
---|
| 352 | |
---|
| 353 | void attach(SectionReader& reader) { |
---|
| 354 | readers.push_back(&reader); |
---|
| 355 | } |
---|
| 356 | |
---|
[1409] | 357 | public: |
---|
| 358 | /// \brief Executes the LemonReader. |
---|
| 359 | /// |
---|
| 360 | /// It executes the LemonReader. |
---|
[1408] | 361 | void run() { |
---|
| 362 | int line_num = 0; |
---|
| 363 | std::string line; |
---|
| 364 | try { |
---|
| 365 | while ((++line_num, getline(*is, line)) && line.find("@end") != 0) { |
---|
| 366 | SectionReaders::iterator it; |
---|
| 367 | for (it = readers.begin(); it != readers.end(); ++it) { |
---|
| 368 | if ((*it)->header(line)) { |
---|
| 369 | char buf[2048]; |
---|
| 370 | FilterStreamBuf buffer(*is, line_num); |
---|
| 371 | buffer.pubsetbuf(buf, sizeof(buf)); |
---|
| 372 | std::istream is(&buffer); |
---|
| 373 | (*it)->read(is); |
---|
| 374 | break; |
---|
| 375 | } |
---|
| 376 | } |
---|
| 377 | } |
---|
| 378 | } catch (DataFormatError& error) { |
---|
| 379 | error.line(line_num); |
---|
| 380 | throw error; |
---|
| 381 | } |
---|
| 382 | } |
---|
| 383 | |
---|
| 384 | |
---|
| 385 | private: |
---|
| 386 | |
---|
| 387 | std::istream* is; |
---|
| 388 | bool own_is; |
---|
| 389 | |
---|
| 390 | typedef std::vector<SectionReader*> SectionReaders; |
---|
| 391 | SectionReaders readers; |
---|
| 392 | |
---|
| 393 | }; |
---|
| 394 | |
---|
[1409] | 395 | /// \brief Helper class for implementing the common SectionReaders. |
---|
| 396 | /// |
---|
| 397 | /// Helper class for implementing the common SectionReaders. |
---|
| 398 | class CommonSectionReaderBase : public LemonReader::SectionReader { |
---|
| 399 | typedef LemonReader::SectionReader Parent; |
---|
| 400 | protected: |
---|
| 401 | |
---|
| 402 | /// \brief Constructor for CommonSectionReaderBase. |
---|
| 403 | /// |
---|
| 404 | /// Constructor for CommonSectionReaderBase. It attach this reader to |
---|
| 405 | /// the given LemonReader. |
---|
| 406 | CommonSectionReaderBase(LemonReader& _reader) |
---|
| 407 | : Parent(_reader) {} |
---|
[1408] | 408 | |
---|
| 409 | template <typename _Item> |
---|
| 410 | class ReaderBase; |
---|
| 411 | |
---|
| 412 | template <typename _Item> |
---|
| 413 | class InverterBase : public ReaderBase<_Item> { |
---|
| 414 | public: |
---|
| 415 | typedef _Item Item; |
---|
| 416 | virtual void read(std::istream&, const Item&) = 0; |
---|
| 417 | virtual Item read(std::istream&) const = 0; |
---|
| 418 | |
---|
| 419 | virtual InverterBase<_Item>* getInverter() { |
---|
| 420 | return this; |
---|
| 421 | } |
---|
| 422 | }; |
---|
| 423 | |
---|
| 424 | template <typename _Item, typename _Map, typename _Reader> |
---|
| 425 | class MapReaderInverter : public InverterBase<_Item> { |
---|
| 426 | public: |
---|
| 427 | typedef _Item Item; |
---|
| 428 | typedef _Reader Reader; |
---|
| 429 | typedef typename Reader::Value Value; |
---|
| 430 | typedef _Map Map; |
---|
[1424] | 431 | typedef std::map<Value, Item, _reader_bits::Less<Value> > Inverse; |
---|
[1408] | 432 | |
---|
[1421] | 433 | typename SmartReference<Map>::Type map; |
---|
[1408] | 434 | Reader reader; |
---|
| 435 | Inverse inverse; |
---|
| 436 | |
---|
[1421] | 437 | MapReaderInverter(typename SmartParameter<Map>::Type _map, |
---|
| 438 | const Reader& _reader) |
---|
[1408] | 439 | : map(_map), reader(_reader) {} |
---|
| 440 | |
---|
| 441 | virtual ~MapReaderInverter() {} |
---|
| 442 | |
---|
| 443 | virtual void read(std::istream& is, const Item& item) { |
---|
| 444 | Value value; |
---|
| 445 | reader.read(is, value); |
---|
| 446 | map.set(item, value); |
---|
| 447 | typename Inverse::iterator it = inverse.find(value); |
---|
| 448 | if (it == inverse.end()) { |
---|
| 449 | inverse.insert(std::make_pair(value, item)); |
---|
| 450 | } else { |
---|
| 451 | throw DataFormatError("Multiple ID occurence"); |
---|
| 452 | } |
---|
| 453 | } |
---|
| 454 | |
---|
| 455 | virtual Item read(std::istream& is) const { |
---|
| 456 | Value value; |
---|
| 457 | reader.read(is, value); |
---|
| 458 | typename Inverse::const_iterator it = inverse.find(value); |
---|
| 459 | if (it != inverse.end()) { |
---|
| 460 | return it->second; |
---|
| 461 | } else { |
---|
| 462 | throw DataFormatError("Invalid ID error"); |
---|
| 463 | } |
---|
| 464 | } |
---|
| 465 | }; |
---|
| 466 | |
---|
| 467 | template <typename _Item, typename _Reader> |
---|
| 468 | class SkipReaderInverter : public InverterBase<_Item> { |
---|
| 469 | public: |
---|
| 470 | typedef _Item Item; |
---|
| 471 | typedef _Reader Reader; |
---|
| 472 | typedef typename Reader::Value Value; |
---|
[1424] | 473 | typedef std::map<Value, Item, _reader_bits::Less<Value> > Inverse; |
---|
[1408] | 474 | |
---|
| 475 | Reader reader; |
---|
| 476 | |
---|
| 477 | SkipReaderInverter(const Reader& _reader) |
---|
| 478 | : reader(_reader) {} |
---|
| 479 | |
---|
| 480 | virtual ~SkipReaderInverter() {} |
---|
| 481 | |
---|
| 482 | virtual void read(std::istream& is, const Item& item) { |
---|
| 483 | Value value; |
---|
| 484 | reader.read(is, value); |
---|
| 485 | typename Inverse::iterator it = inverse.find(value); |
---|
| 486 | if (it == inverse.end()) { |
---|
| 487 | inverse.insert(std::make_pair(value, item)); |
---|
| 488 | } else { |
---|
| 489 | throw DataFormatError("Multiple ID occurence error"); |
---|
| 490 | } |
---|
| 491 | } |
---|
| 492 | |
---|
| 493 | virtual Item read(std::istream& is) const { |
---|
| 494 | Value value; |
---|
| 495 | reader.read(is, value); |
---|
| 496 | typename Inverse::const_iterator it = inverse.find(value); |
---|
| 497 | if (it != inverse.end()) { |
---|
| 498 | return it->second; |
---|
| 499 | } else { |
---|
| 500 | throw DataFormatError("Invalid ID error"); |
---|
| 501 | } |
---|
| 502 | } |
---|
| 503 | |
---|
| 504 | private: |
---|
| 505 | Inverse inverse; |
---|
| 506 | }; |
---|
| 507 | |
---|
| 508 | template <typename _Item> |
---|
| 509 | class ReaderBase { |
---|
| 510 | public: |
---|
| 511 | typedef _Item Item; |
---|
| 512 | |
---|
| 513 | virtual ~ReaderBase() {} |
---|
| 514 | |
---|
| 515 | virtual void read(std::istream& is, const Item& item) = 0; |
---|
| 516 | virtual InverterBase<_Item>* getInverter() = 0; |
---|
| 517 | }; |
---|
| 518 | |
---|
| 519 | template <typename _Item, typename _Map, typename _Reader> |
---|
| 520 | class MapReader : public ReaderBase<_Item> { |
---|
| 521 | public: |
---|
| 522 | typedef _Map Map; |
---|
| 523 | typedef _Reader Reader; |
---|
| 524 | typedef typename Reader::Value Value; |
---|
| 525 | typedef _Item Item; |
---|
| 526 | |
---|
[1421] | 527 | typename SmartReference<Map>::Type map; |
---|
[1408] | 528 | Reader reader; |
---|
| 529 | |
---|
[1421] | 530 | MapReader(typename SmartParameter<Map>::Type _map, |
---|
| 531 | const Reader& _reader) |
---|
[1408] | 532 | : map(_map), reader(_reader) {} |
---|
| 533 | |
---|
| 534 | virtual ~MapReader() {} |
---|
| 535 | |
---|
| 536 | virtual void read(std::istream& is, const Item& item) { |
---|
| 537 | Value value; |
---|
| 538 | reader.read(is, value); |
---|
| 539 | map.set(item, value); |
---|
| 540 | } |
---|
| 541 | |
---|
| 542 | virtual InverterBase<_Item>* getInverter() { |
---|
| 543 | return new MapReaderInverter<Item, Map, Reader>(map, reader); |
---|
| 544 | } |
---|
| 545 | }; |
---|
| 546 | |
---|
| 547 | |
---|
| 548 | template <typename _Item, typename _Reader> |
---|
| 549 | class SkipReader : public ReaderBase<_Item> { |
---|
| 550 | public: |
---|
| 551 | typedef _Reader Reader; |
---|
| 552 | typedef typename Reader::Value Value; |
---|
| 553 | typedef _Item Item; |
---|
| 554 | |
---|
| 555 | Reader reader; |
---|
| 556 | SkipReader(const Reader& _reader) : reader(_reader) {} |
---|
| 557 | |
---|
| 558 | virtual ~SkipReader() {} |
---|
| 559 | |
---|
| 560 | virtual void read(std::istream& is, const Item&) { |
---|
| 561 | Value value; |
---|
| 562 | reader.read(is, value); |
---|
| 563 | } |
---|
| 564 | |
---|
| 565 | virtual InverterBase<Item>* getInverter() { |
---|
| 566 | return new SkipReaderInverter<Item, Reader>(reader); |
---|
| 567 | } |
---|
| 568 | }; |
---|
| 569 | |
---|
| 570 | template <typename _Item> |
---|
[1409] | 571 | class IdReaderBase { |
---|
[1408] | 572 | public: |
---|
| 573 | typedef _Item Item; |
---|
[1409] | 574 | virtual Item read(std::istream& is) const = 0; |
---|
[1476] | 575 | virtual bool isIdReader() const = 0; |
---|
[1408] | 576 | }; |
---|
| 577 | |
---|
[1409] | 578 | template <typename _Item, typename _BoxedIdReader> |
---|
| 579 | class IdReader : public IdReaderBase<_Item> { |
---|
[1408] | 580 | public: |
---|
| 581 | typedef _Item Item; |
---|
[1409] | 582 | typedef _BoxedIdReader BoxedIdReader; |
---|
| 583 | |
---|
| 584 | const BoxedIdReader& boxedIdReader; |
---|
[1408] | 585 | |
---|
[1409] | 586 | IdReader(const BoxedIdReader& _boxedIdReader) |
---|
| 587 | : boxedIdReader(_boxedIdReader) {} |
---|
[1408] | 588 | |
---|
[1409] | 589 | virtual Item read(std::istream& is) const { |
---|
[1492] | 590 | Item item; |
---|
| 591 | boxedIdReader.readId(is, item); |
---|
| 592 | return item; |
---|
[1408] | 593 | } |
---|
[1476] | 594 | |
---|
| 595 | virtual bool isIdReader() const { |
---|
| 596 | return boxedIdReader.isIdReader(); |
---|
| 597 | } |
---|
[1408] | 598 | }; |
---|
| 599 | |
---|
| 600 | class ValueReaderBase { |
---|
| 601 | public: |
---|
| 602 | virtual void read(std::istream&) {}; |
---|
| 603 | }; |
---|
| 604 | |
---|
| 605 | template <typename _Value, typename _Reader> |
---|
| 606 | class ValueReader : public ValueReaderBase { |
---|
| 607 | public: |
---|
| 608 | typedef _Value Value; |
---|
| 609 | typedef _Reader Reader; |
---|
| 610 | |
---|
| 611 | ValueReader(Value& _value, const Reader& _reader) |
---|
| 612 | : value(_value), reader(_reader) {} |
---|
| 613 | |
---|
| 614 | virtual void read(std::istream& is) { |
---|
| 615 | reader.read(is, value); |
---|
| 616 | } |
---|
| 617 | private: |
---|
| 618 | Value& value; |
---|
| 619 | Reader reader; |
---|
| 620 | }; |
---|
| 621 | |
---|
| 622 | }; |
---|
| 623 | |
---|
[1409] | 624 | /// \ingroup io_group |
---|
| 625 | /// \brief SectionReader for reading a graph's nodeset. |
---|
| 626 | /// |
---|
| 627 | /// The lemon format can store multiple graph nodesets with several maps. |
---|
| 628 | /// The nodeset section's header line is \c \@nodeset \c nodeset_id, but the |
---|
| 629 | /// \c nodeset_id may be empty. |
---|
| 630 | /// |
---|
| 631 | /// The first line of the section contains the names of the maps separated |
---|
| 632 | /// with white spaces. Each next lines describes a node in the nodeset, and |
---|
| 633 | /// contains the mapped values for each map. |
---|
| 634 | /// |
---|
| 635 | /// If the nodeset contains an \c "id" named map then it will be regarded |
---|
| 636 | /// as id map. This map should contain only unique values and when the |
---|
| 637 | /// \c readId() member will read a value from the given stream it will |
---|
| 638 | /// give back that node which is mapped to this value. |
---|
| 639 | /// |
---|
| 640 | /// \relates LemonReader |
---|
[1408] | 641 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
| 642 | class NodeSetReader : public CommonSectionReaderBase { |
---|
| 643 | typedef CommonSectionReaderBase Parent; |
---|
| 644 | public: |
---|
| 645 | |
---|
| 646 | typedef _Graph Graph; |
---|
| 647 | typedef _Traits Traits; |
---|
[1429] | 648 | typedef typename Graph::Node Node; |
---|
[1408] | 649 | typedef typename Traits::Skipper DefaultSkipper; |
---|
| 650 | |
---|
[1409] | 651 | /// \brief Constructor. |
---|
| 652 | /// |
---|
| 653 | /// Constructor for NodeSetReader. It creates the NodeSetReader and |
---|
| 654 | /// attach it into the given LemonReader. The nodeset reader will |
---|
| 655 | /// add the readed nodes to the given Graph. The reader will read |
---|
| 656 | /// the section when the \c section_id and the \c _id are the same. |
---|
[1421] | 657 | NodeSetReader(LemonReader& _reader, |
---|
| 658 | typename SmartParameter<Graph>::Type _graph, |
---|
[1408] | 659 | const std::string& _id = std::string(), |
---|
[1409] | 660 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
| 661 | : Parent(_reader), graph(_graph), id(_id), skipper(_skipper) {} |
---|
[1408] | 662 | |
---|
[1409] | 663 | |
---|
| 664 | /// \brief Destructor. |
---|
| 665 | /// |
---|
| 666 | /// Destructor for NodeSetReader. |
---|
[1408] | 667 | virtual ~NodeSetReader() { |
---|
| 668 | for (typename MapReaders::iterator it = readers.begin(); |
---|
| 669 | it != readers.end(); ++it) { |
---|
| 670 | delete it->second; |
---|
| 671 | } |
---|
| 672 | } |
---|
| 673 | |
---|
| 674 | private: |
---|
| 675 | NodeSetReader(const NodeSetReader&); |
---|
| 676 | void operator=(const NodeSetReader&); |
---|
| 677 | |
---|
| 678 | public: |
---|
| 679 | |
---|
| 680 | /// \brief Add a new node map reader command for the reader. |
---|
| 681 | /// |
---|
| 682 | /// Add a new node map reader command for the reader. |
---|
| 683 | template <typename Map> |
---|
[1421] | 684 | NodeSetReader& readNodeMap(std::string name, Map& map) { |
---|
| 685 | return _readMap< |
---|
| 686 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 687 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 688 | } |
---|
| 689 | |
---|
| 690 | template <typename Map> |
---|
| 691 | NodeSetReader& readNodeMap(std::string name, const Map& map) { |
---|
| 692 | return _readMap< |
---|
| 693 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 694 | typename SmartParameter<Map>::Type>(name, map); |
---|
[1408] | 695 | } |
---|
| 696 | |
---|
| 697 | /// \brief Add a new node map reader command for the reader. |
---|
| 698 | /// |
---|
| 699 | /// Add a new node map reader command for the reader. |
---|
| 700 | template <typename Reader, typename Map> |
---|
[1421] | 701 | NodeSetReader& readNodeMap(std::string name, Map& map, |
---|
| 702 | const Reader& reader = Reader()) { |
---|
[1429] | 703 | return _readMap<Reader, Map, typename SmartParameter<Map>::Type> |
---|
| 704 | (name, map, reader); |
---|
[1421] | 705 | } |
---|
| 706 | |
---|
| 707 | template <typename Reader, typename Map> |
---|
| 708 | NodeSetReader& readNodeMap(std::string name, const Map& map, |
---|
| 709 | const Reader& reader = Reader()) { |
---|
[1429] | 710 | return _readMap<Reader, Map, typename SmartParameter<Map>::Type> |
---|
| 711 | (name, map, reader); |
---|
[1421] | 712 | } |
---|
| 713 | |
---|
| 714 | private: |
---|
| 715 | |
---|
| 716 | template <typename Reader, typename Map, typename MapParameter> |
---|
| 717 | NodeSetReader& _readMap(std::string name, MapParameter map, |
---|
| 718 | const Reader& reader = Reader()) { |
---|
[1492] | 719 | checkConcept<concept::WriteMap<Node, typename Map::Value>, Map>(); |
---|
| 720 | checkConcept<_reader_bits::ItemReader<typename Map::Value>, Reader>(); |
---|
[1408] | 721 | if (readers.find(name) != readers.end()) { |
---|
| 722 | ErrorMessage msg; |
---|
| 723 | msg << "Multiple read rule for node map: " << name; |
---|
| 724 | throw IOParameterError(msg.message()); |
---|
| 725 | } |
---|
| 726 | readers.insert( |
---|
[1429] | 727 | make_pair(name, new MapReader<Node, Map, Reader>(map, reader))); |
---|
[1408] | 728 | return *this; |
---|
| 729 | } |
---|
| 730 | |
---|
[1421] | 731 | public: |
---|
| 732 | |
---|
[1408] | 733 | /// \brief Add a new node map skipper command for the reader. |
---|
| 734 | /// |
---|
| 735 | /// Add a new node map skipper command for the reader. |
---|
| 736 | template <typename Reader> |
---|
[1421] | 737 | NodeSetReader& skipNodeMap(std::string name, |
---|
[1408] | 738 | const Reader& reader = Reader()) { |
---|
| 739 | if (readers.find(name) != readers.end()) { |
---|
| 740 | ErrorMessage msg; |
---|
| 741 | msg << "Multiple read rule for node map: " << name; |
---|
| 742 | throw IOParameterError(msg.message()); |
---|
| 743 | } |
---|
[1429] | 744 | readers.insert(make_pair(name, new SkipReader<Node, Reader>(reader))); |
---|
[1408] | 745 | return *this; |
---|
| 746 | } |
---|
| 747 | |
---|
[1409] | 748 | protected: |
---|
| 749 | |
---|
| 750 | /// \brief Gives back true when the SectionReader can process |
---|
| 751 | /// the section with the given header line. |
---|
| 752 | /// |
---|
[1421] | 753 | /// It gives back true when the header line starts with \c \@nodeset, |
---|
[1409] | 754 | /// and the header line's id and the nodeset's id are the same. |
---|
[1408] | 755 | virtual bool header(const std::string& line) { |
---|
| 756 | std::istringstream ls(line); |
---|
| 757 | std::string command; |
---|
| 758 | std::string name; |
---|
| 759 | ls >> command >> name; |
---|
| 760 | return command == "@nodeset" && name == id; |
---|
| 761 | } |
---|
| 762 | |
---|
[1409] | 763 | /// \brief Reader function of the section. |
---|
| 764 | /// |
---|
| 765 | /// It reads the content of the section. |
---|
[1408] | 766 | virtual void read(std::istream& is) { |
---|
[1429] | 767 | std::vector<ReaderBase<Node>* > index; |
---|
[1408] | 768 | std::string line; |
---|
| 769 | |
---|
| 770 | getline(is, line); |
---|
| 771 | std::istringstream ls(line); |
---|
| 772 | while (ls >> id) { |
---|
| 773 | typename MapReaders::iterator it = readers.find(id); |
---|
| 774 | if (it != readers.end()) { |
---|
| 775 | index.push_back(it->second); |
---|
| 776 | } else { |
---|
| 777 | index.push_back(&skipper); |
---|
| 778 | } |
---|
| 779 | if (id == "id" && inverter.get() == 0) { |
---|
| 780 | inverter.reset(index.back()->getInverter()); |
---|
| 781 | index.back() = inverter.get(); |
---|
| 782 | } |
---|
| 783 | } |
---|
| 784 | while (getline(is, line)) { |
---|
[1429] | 785 | Node node = graph.addNode(); |
---|
[1408] | 786 | std::istringstream ls(line); |
---|
| 787 | for (int i = 0; i < (int)index.size(); ++i) { |
---|
| 788 | index[i]->read(ls, node); |
---|
| 789 | } |
---|
| 790 | } |
---|
| 791 | } |
---|
| 792 | |
---|
[1409] | 793 | public: |
---|
| 794 | |
---|
| 795 | /// \brief Returns true if the nodeset can give back the node by its id. |
---|
| 796 | /// |
---|
| 797 | /// Returns true if the nodeset can give back the node by its id. |
---|
| 798 | /// It is possible only if an "id" named map was read. |
---|
| 799 | bool isIdReader() const { |
---|
[1408] | 800 | return inverter.get() != 0; |
---|
| 801 | } |
---|
| 802 | |
---|
[1409] | 803 | /// \brief Gives back the node by its id. |
---|
| 804 | /// |
---|
| 805 | /// It reads an id from the stream and gives back which node belongs to |
---|
| 806 | /// it. It is possible only if there was read an "id" named map. |
---|
[1492] | 807 | void readId(std::istream& is, Node& node) const { |
---|
| 808 | node = inverter->read(is); |
---|
[1408] | 809 | } |
---|
| 810 | |
---|
| 811 | private: |
---|
| 812 | |
---|
[1429] | 813 | typedef std::map<std::string, ReaderBase<Node>*> MapReaders; |
---|
[1408] | 814 | MapReaders readers; |
---|
| 815 | |
---|
[1421] | 816 | typename SmartReference<Graph>::Type graph; |
---|
[1408] | 817 | std::string id; |
---|
[1429] | 818 | SkipReader<Node, DefaultSkipper> skipper; |
---|
[1408] | 819 | |
---|
[1429] | 820 | std::auto_ptr<InverterBase<Node> > inverter; |
---|
[1408] | 821 | }; |
---|
| 822 | |
---|
[1409] | 823 | /// \ingroup io_group |
---|
| 824 | /// \brief SectionReader for reading a graph's edgeset. |
---|
| 825 | /// |
---|
| 826 | /// The lemon format can store multiple graph edgesets with several maps. |
---|
| 827 | /// The edgeset section's header line is \c \@edgeset \c edgeset_id, but the |
---|
| 828 | /// \c edgeset_id may be empty. |
---|
| 829 | /// |
---|
| 830 | /// The first line of the section contains the names of the maps separated |
---|
[1421] | 831 | /// with white spaces. Each next lines describes an edge in the edgeset. The |
---|
| 832 | /// line contains the source and the target nodes' id and the mapped |
---|
| 833 | /// values for each map. |
---|
[1409] | 834 | /// |
---|
| 835 | /// If the edgeset contains an \c "id" named map then it will be regarded |
---|
| 836 | /// as id map. This map should contain only unique values and when the |
---|
| 837 | /// \c readId() member will read a value from the given stream it will |
---|
| 838 | /// give back that edge which is mapped to this value. |
---|
| 839 | /// |
---|
| 840 | /// The edgeset reader needs a node id reader to identify which nodes |
---|
| 841 | /// have to be connected. If a NodeSetReader reads an "id" named map, |
---|
| 842 | /// it will be able to resolve the nodes by ids. |
---|
| 843 | /// |
---|
| 844 | /// \relates LemonReader |
---|
[1408] | 845 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
| 846 | class EdgeSetReader : public CommonSectionReaderBase { |
---|
| 847 | typedef CommonSectionReaderBase Parent; |
---|
| 848 | public: |
---|
| 849 | |
---|
| 850 | typedef _Graph Graph; |
---|
| 851 | typedef _Traits Traits; |
---|
[1429] | 852 | typedef typename Graph::Node Node; |
---|
| 853 | typedef typename Graph::Edge Edge; |
---|
[1408] | 854 | typedef typename Traits::Skipper DefaultSkipper; |
---|
| 855 | |
---|
[1409] | 856 | /// \brief Constructor. |
---|
| 857 | /// |
---|
| 858 | /// Constructor for EdgeSetReader. It creates the EdgeSetReader and |
---|
| 859 | /// attach it into the given LemonReader. The edgeset reader will |
---|
| 860 | /// add the readed edges to the given Graph. It will use the given |
---|
| 861 | /// node id reader to read the source and target nodes of the edges. |
---|
| 862 | /// The reader will read the section only if the \c _id and the |
---|
| 863 | /// \c edgset_id are the same. |
---|
| 864 | template <typename NodeIdReader> |
---|
[1421] | 865 | EdgeSetReader(LemonReader& _reader, |
---|
| 866 | typename SmartParameter<Graph>::Type _graph, |
---|
[1409] | 867 | const NodeIdReader& _nodeIdReader, |
---|
[1408] | 868 | const std::string& _id = std::string(), |
---|
[1409] | 869 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
[1476] | 870 | : Parent(_reader), graph(_graph), id(_id), skipper(_skipper) { |
---|
| 871 | checkConcept<_reader_bits::ItemIdReader<Node>, NodeIdReader>(); |
---|
| 872 | nodeIdReader.reset(new IdReader<Node, NodeIdReader>(_nodeIdReader)); |
---|
| 873 | } |
---|
[1409] | 874 | /// \brief Destructor. |
---|
| 875 | /// |
---|
| 876 | /// Destructor for EdgeSetReader. |
---|
[1408] | 877 | virtual ~EdgeSetReader() { |
---|
| 878 | for (typename MapReaders::iterator it = readers.begin(); |
---|
| 879 | it != readers.end(); ++it) { |
---|
| 880 | delete it->second; |
---|
| 881 | } |
---|
| 882 | } |
---|
| 883 | |
---|
| 884 | private: |
---|
| 885 | EdgeSetReader(const EdgeSetReader&); |
---|
| 886 | void operator=(const EdgeSetReader&); |
---|
| 887 | |
---|
| 888 | public: |
---|
| 889 | |
---|
[1409] | 890 | /// \brief Add a new edge map reader command for the reader. |
---|
[1408] | 891 | /// |
---|
[1409] | 892 | /// Add a new edge map reader command for the reader. |
---|
[1408] | 893 | template <typename Map> |
---|
[1421] | 894 | EdgeSetReader& readEdgeMap(std::string name, Map& map) { |
---|
| 895 | return _readMap< |
---|
| 896 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 897 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 898 | } |
---|
| 899 | |
---|
| 900 | template <typename Map> |
---|
| 901 | EdgeSetReader& readEdgeMap(std::string name, const Map& map) { |
---|
| 902 | return _readMap< |
---|
| 903 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 904 | typename SmartParameter<Map>::Type>(name, map); |
---|
[1408] | 905 | } |
---|
| 906 | |
---|
[1409] | 907 | /// \brief Add a new edge map reader command for the reader. |
---|
[1408] | 908 | /// |
---|
[1409] | 909 | /// Add a new edge map reader command for the reader. |
---|
[1408] | 910 | template <typename Reader, typename Map> |
---|
[1421] | 911 | EdgeSetReader& readEdgeMap(std::string name, Map& map, |
---|
| 912 | const Reader& reader = Reader()) { |
---|
[1429] | 913 | return _readMap<Reader, Map, |
---|
[1421] | 914 | typename SmartParameter<Map>::Type>(name, map, reader); |
---|
| 915 | } |
---|
| 916 | |
---|
| 917 | template <typename Reader, typename Map> |
---|
| 918 | EdgeSetReader& readEdgeMap(std::string name, const Map& map, |
---|
| 919 | const Reader& reader = Reader()) { |
---|
[1429] | 920 | return _readMap<Reader, Map, |
---|
[1421] | 921 | typename SmartParameter<Map>::Type>(name, map, reader); |
---|
| 922 | } |
---|
| 923 | |
---|
| 924 | private: |
---|
| 925 | |
---|
| 926 | template <typename Reader, typename Map, typename MapParameter> |
---|
| 927 | EdgeSetReader& _readMap(std::string name, MapParameter map, |
---|
| 928 | const Reader& reader = Reader()) { |
---|
[1492] | 929 | checkConcept<concept::WriteMap<Edge, typename Map::Value>, Map>(); |
---|
| 930 | checkConcept<_reader_bits::ItemReader<typename Map::Value>, Reader>(); |
---|
[1408] | 931 | if (readers.find(name) != readers.end()) { |
---|
| 932 | ErrorMessage msg; |
---|
| 933 | msg << "Multiple read rule for edge map: " << name; |
---|
| 934 | throw IOParameterError(msg.message()); |
---|
| 935 | } |
---|
| 936 | readers.insert( |
---|
[1429] | 937 | make_pair(name, new MapReader<Edge, Map, Reader>(map, reader))); |
---|
[1408] | 938 | return *this; |
---|
| 939 | } |
---|
| 940 | |
---|
[1421] | 941 | public: |
---|
| 942 | |
---|
[1409] | 943 | /// \brief Add a new edge map skipper command for the reader. |
---|
[1408] | 944 | /// |
---|
[1409] | 945 | /// Add a new edge map skipper command for the reader. |
---|
[1408] | 946 | template <typename Reader> |
---|
[1421] | 947 | EdgeSetReader& skipEdgeMap(std::string name, |
---|
| 948 | const Reader& reader = Reader()) { |
---|
[1408] | 949 | if (readers.find(name) != readers.end()) { |
---|
| 950 | ErrorMessage msg; |
---|
[1421] | 951 | msg << "Multiple read rule for edge map: " << name; |
---|
[1408] | 952 | throw IOParameterError(msg.message()); |
---|
| 953 | } |
---|
[1429] | 954 | readers.insert(make_pair(name, new SkipReader<Edge, Reader>(reader))); |
---|
[1408] | 955 | return *this; |
---|
| 956 | } |
---|
| 957 | |
---|
[1409] | 958 | protected: |
---|
| 959 | |
---|
| 960 | /// \brief Gives back true when the SectionReader can process |
---|
| 961 | /// the section with the given header line. |
---|
| 962 | /// |
---|
[1421] | 963 | /// It gives back true when the header line starts with \c \@edgeset, |
---|
[1409] | 964 | /// and the header line's id and the edgeset's id are the same. |
---|
[1408] | 965 | virtual bool header(const std::string& line) { |
---|
| 966 | std::istringstream ls(line); |
---|
| 967 | std::string command; |
---|
| 968 | std::string name; |
---|
| 969 | ls >> command >> name; |
---|
| 970 | return command == "@edgeset" && name == id; |
---|
| 971 | } |
---|
| 972 | |
---|
[1409] | 973 | /// \brief Reader function of the section. |
---|
| 974 | /// |
---|
| 975 | /// It reads the content of the section. |
---|
[1408] | 976 | virtual void read(std::istream& is) { |
---|
[1476] | 977 | if (!nodeIdReader->isIdReader()) { |
---|
| 978 | throw DataFormatError("Cannot find nodeset or ID map"); |
---|
| 979 | } |
---|
[1429] | 980 | std::vector<ReaderBase<Edge>* > index; |
---|
[1408] | 981 | std::string line; |
---|
| 982 | |
---|
| 983 | getline(is, line); |
---|
| 984 | std::istringstream ls(line); |
---|
| 985 | while (ls >> id) { |
---|
| 986 | typename MapReaders::iterator it = readers.find(id); |
---|
| 987 | if (it != readers.end()) { |
---|
| 988 | index.push_back(it->second); |
---|
| 989 | } else { |
---|
| 990 | index.push_back(&skipper); |
---|
| 991 | } |
---|
| 992 | if (id == "id" && inverter.get() == 0) { |
---|
| 993 | inverter.reset(index.back()->getInverter()); |
---|
| 994 | index.back() = inverter.get(); |
---|
| 995 | } |
---|
| 996 | } |
---|
| 997 | while (getline(is, line)) { |
---|
| 998 | std::istringstream ls(line); |
---|
[1429] | 999 | Node from = nodeIdReader->read(ls); |
---|
| 1000 | Node to = nodeIdReader->read(ls); |
---|
| 1001 | Edge edge = graph.addEdge(from, to); |
---|
[1408] | 1002 | for (int i = 0; i < (int)index.size(); ++i) { |
---|
| 1003 | index[i]->read(ls, edge); |
---|
| 1004 | } |
---|
| 1005 | } |
---|
| 1006 | } |
---|
| 1007 | |
---|
[1409] | 1008 | public: |
---|
| 1009 | |
---|
| 1010 | /// \brief Returns true if the edgeset can give back the edge by its id. |
---|
| 1011 | /// |
---|
| 1012 | /// Returns true if the edgeset can give back the edge by its id. |
---|
| 1013 | /// It is possible only if an "id" named map was read. |
---|
| 1014 | bool isIdReader() const { |
---|
[1408] | 1015 | return inverter.get() != 0; |
---|
| 1016 | } |
---|
| 1017 | |
---|
[1409] | 1018 | /// \brief Gives back the edge by its id. |
---|
| 1019 | /// |
---|
| 1020 | /// It reads an id from the stream and gives back which edge belongs to |
---|
| 1021 | /// it. It is possible only if there was read an "id" named map. |
---|
[1492] | 1022 | void readId(std::istream& is, Edge& edge) const { |
---|
| 1023 | edge = inverter->read(is); |
---|
[1408] | 1024 | } |
---|
| 1025 | |
---|
| 1026 | private: |
---|
| 1027 | |
---|
[1429] | 1028 | typedef std::map<std::string, ReaderBase<Edge>*> MapReaders; |
---|
[1408] | 1029 | MapReaders readers; |
---|
| 1030 | |
---|
[1421] | 1031 | typename SmartReference<Graph>::Type graph; |
---|
| 1032 | std::string id; |
---|
[1429] | 1033 | SkipReader<Edge, DefaultSkipper> skipper; |
---|
[1421] | 1034 | |
---|
[1429] | 1035 | std::auto_ptr<InverterBase<Edge> > inverter; |
---|
| 1036 | std::auto_ptr<IdReaderBase<Node> > nodeIdReader; |
---|
[1421] | 1037 | }; |
---|
| 1038 | |
---|
| 1039 | /// \ingroup io_group |
---|
| 1040 | /// \brief SectionReader for reading a undirected graph's edgeset. |
---|
| 1041 | /// |
---|
| 1042 | /// The lemon format can store multiple undirected edgesets with several |
---|
| 1043 | /// maps. The undirected edgeset section's header line is \c \@undiredgeset |
---|
| 1044 | /// \c undiredgeset_id, but the \c undiredgeset_id may be empty. |
---|
| 1045 | /// |
---|
| 1046 | /// The first line of the section contains the names of the maps separated |
---|
| 1047 | /// with white spaces. Each next lines describes an edge in the edgeset. The |
---|
| 1048 | /// line contains the connected nodes' id and the mapped values for each map. |
---|
| 1049 | /// |
---|
| 1050 | /// The section can handle the directed as a syntactical sugar. Two |
---|
| 1051 | /// undirected edge map describes one directed edge map. This two maps |
---|
| 1052 | /// are the forward map and the backward map and the names of this map |
---|
| 1053 | /// is near the same just with a prefix \c '+' or \c '-' character |
---|
| 1054 | /// difference. |
---|
| 1055 | /// |
---|
| 1056 | /// If the edgeset contains an \c "id" named map then it will be regarded |
---|
| 1057 | /// as id map. This map should contain only unique values and when the |
---|
| 1058 | /// \c readId() member will read a value from the given stream it will |
---|
| 1059 | /// give back that undiricted edge which is mapped to this value. |
---|
| 1060 | /// |
---|
| 1061 | /// The undirected edgeset reader needs a node id reader to identify which |
---|
| 1062 | /// nodes have to be connected. If a NodeSetReader reads an "id" named map, |
---|
| 1063 | /// it will be able to resolve the nodes by ids. |
---|
| 1064 | /// |
---|
| 1065 | /// \relates LemonReader |
---|
| 1066 | template <typename _Graph, typename _Traits = DefaultReaderTraits> |
---|
| 1067 | class UndirEdgeSetReader : public CommonSectionReaderBase { |
---|
| 1068 | typedef CommonSectionReaderBase Parent; |
---|
| 1069 | public: |
---|
| 1070 | |
---|
| 1071 | typedef _Graph Graph; |
---|
| 1072 | typedef _Traits Traits; |
---|
[1429] | 1073 | typedef typename Graph::Node Node; |
---|
| 1074 | typedef typename Graph::Edge Edge; |
---|
| 1075 | typedef typename Graph::UndirEdge UndirEdge; |
---|
[1421] | 1076 | typedef typename Traits::Skipper DefaultSkipper; |
---|
| 1077 | |
---|
| 1078 | /// \brief Constructor. |
---|
| 1079 | /// |
---|
| 1080 | /// Constructor for UndirEdgeSetReader. It creates the UndirEdgeSetReader |
---|
| 1081 | /// and attach it into the given LemonReader. The undirected edgeset |
---|
| 1082 | /// reader will add the readed undirected edges to the given Graph. It |
---|
| 1083 | /// will use the given node id reader to read the source and target |
---|
| 1084 | /// nodes of the edges. The reader will read the section only if the |
---|
| 1085 | /// \c _id and the \c undiredgset_id are the same. |
---|
| 1086 | template <typename NodeIdReader> |
---|
| 1087 | UndirEdgeSetReader(LemonReader& _reader, |
---|
| 1088 | typename SmartParameter<Graph>::Type _graph, |
---|
| 1089 | const NodeIdReader& _nodeIdReader, |
---|
| 1090 | const std::string& _id = std::string(), |
---|
| 1091 | const DefaultSkipper& _skipper = DefaultSkipper()) |
---|
[1476] | 1092 | : Parent(_reader), graph(_graph), id(_id), skipper(_skipper) { |
---|
| 1093 | checkConcept<_reader_bits::ItemIdReader<Node>, NodeIdReader>(); |
---|
| 1094 | nodeIdReader.reset(new IdReader<Node, NodeIdReader>(_nodeIdReader)); |
---|
| 1095 | } |
---|
[1421] | 1096 | /// \brief Destructor. |
---|
| 1097 | /// |
---|
| 1098 | /// Destructor for UndirEdgeSetReader. |
---|
| 1099 | virtual ~UndirEdgeSetReader() { |
---|
| 1100 | for (typename MapReaders::iterator it = readers.begin(); |
---|
| 1101 | it != readers.end(); ++it) { |
---|
| 1102 | delete it->second; |
---|
| 1103 | } |
---|
| 1104 | } |
---|
| 1105 | |
---|
| 1106 | private: |
---|
| 1107 | UndirEdgeSetReader(const UndirEdgeSetReader&); |
---|
| 1108 | void operator=(const UndirEdgeSetReader&); |
---|
| 1109 | |
---|
| 1110 | public: |
---|
| 1111 | |
---|
| 1112 | /// \brief Add a new undirected edge map reader command for the reader. |
---|
| 1113 | /// |
---|
| 1114 | /// Add a new edge undirected map reader command for the reader. |
---|
| 1115 | template <typename Map> |
---|
| 1116 | UndirEdgeSetReader& readUndirEdgeMap(std::string name, Map& map) { |
---|
| 1117 | return _readMap< |
---|
| 1118 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 1119 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 1120 | } |
---|
| 1121 | |
---|
| 1122 | template <typename Map> |
---|
| 1123 | UndirEdgeSetReader& readUndirEdgeMap(std::string name, const Map& map) { |
---|
| 1124 | return _readMap< |
---|
| 1125 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 1126 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 1127 | } |
---|
| 1128 | |
---|
| 1129 | /// \brief Add a new undirected edge map reader command for the reader. |
---|
| 1130 | /// |
---|
| 1131 | /// Add a new edge undirected map reader command for the reader. |
---|
| 1132 | template <typename Reader, typename Map> |
---|
| 1133 | UndirEdgeSetReader& readUndirEdgeMap(std::string name, Map& map, |
---|
| 1134 | const Reader& reader = Reader()) { |
---|
| 1135 | return _readMap<Reader, Map, typename SmartParameter<Map>::Type> |
---|
| 1136 | (name, map, reader); |
---|
| 1137 | } |
---|
| 1138 | |
---|
| 1139 | template <typename Reader, typename Map> |
---|
| 1140 | UndirEdgeSetReader& readUndirEdgeMap(std::string name, const Map& map, |
---|
| 1141 | const Reader& reader = Reader()) { |
---|
| 1142 | return _readMap<Reader, Map, typename SmartParameter<Map>::Type > |
---|
| 1143 | (name, map, reader); |
---|
| 1144 | } |
---|
| 1145 | |
---|
| 1146 | private: |
---|
| 1147 | |
---|
| 1148 | template <typename Reader, typename Map, typename MapParameter> |
---|
| 1149 | UndirEdgeSetReader& _readMap(std::string name, MapParameter map, |
---|
| 1150 | const Reader& reader = Reader()) { |
---|
[1492] | 1151 | checkConcept<concept::WriteMap<UndirEdge, typename Map::Value>, Map>(); |
---|
| 1152 | checkConcept<_reader_bits::ItemReader<typename Map::Value>, Reader>(); |
---|
[1421] | 1153 | if (readers.find(name) != readers.end()) { |
---|
| 1154 | ErrorMessage msg; |
---|
| 1155 | msg << "Multiple read rule for edge map: " << name; |
---|
| 1156 | throw IOParameterError(msg.message()); |
---|
| 1157 | } |
---|
| 1158 | readers.insert( |
---|
[1429] | 1159 | make_pair(name, new MapReader<UndirEdge, Map, Reader>(map, reader))); |
---|
[1421] | 1160 | return *this; |
---|
| 1161 | } |
---|
| 1162 | |
---|
| 1163 | public: |
---|
| 1164 | |
---|
| 1165 | /// \brief Add a new undirected edge map skipper command for the reader. |
---|
| 1166 | /// |
---|
| 1167 | /// Add a new undirected edge map skipper command for the reader. |
---|
| 1168 | template <typename Reader> |
---|
| 1169 | UndirEdgeSetReader& skipUndirEdgeMap(std::string name, |
---|
| 1170 | const Reader& reader = Reader()) { |
---|
| 1171 | if (readers.find(name) != readers.end()) { |
---|
| 1172 | ErrorMessage msg; |
---|
| 1173 | msg << "Multiple read rule for node map: " << name; |
---|
| 1174 | throw IOParameterError(msg.message()); |
---|
| 1175 | } |
---|
[1429] | 1176 | readers.insert(make_pair(name, |
---|
| 1177 | new SkipReader<UndirEdge, Reader>(reader))); |
---|
[1421] | 1178 | return *this; |
---|
| 1179 | } |
---|
| 1180 | |
---|
| 1181 | /// \brief Add a new directed edge map reader command for the reader. |
---|
| 1182 | /// |
---|
| 1183 | /// Add a new directed edge map reader command for the reader. |
---|
| 1184 | template <typename Map> |
---|
| 1185 | UndirEdgeSetReader& readEdgeMap(std::string name, Map& map) { |
---|
| 1186 | return _readDirMap< |
---|
| 1187 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 1188 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 1189 | } |
---|
| 1190 | |
---|
| 1191 | template <typename Map> |
---|
| 1192 | UndirEdgeSetReader& readEdgeMap(std::string name, const Map& map) { |
---|
| 1193 | return _readDirMap< |
---|
| 1194 | typename Traits::template Reader<typename Map::Value>, Map, |
---|
| 1195 | typename SmartParameter<Map>::Type>(name, map); |
---|
| 1196 | } |
---|
| 1197 | |
---|
| 1198 | /// \brief Add a new directed edge map reader command for the reader. |
---|
| 1199 | /// |
---|
| 1200 | /// Add a new directed edge map reader command for the reader. |
---|
| 1201 | template <typename Reader, typename Map> |
---|
| 1202 | UndirEdgeSetReader& readEdgeMap(std::string name, Map& map, |
---|
| 1203 | const Reader& reader = Reader()) { |
---|
| 1204 | return _readDirMap<Reader, Map, typename SmartParameter<Map>::Type> |
---|
| 1205 | (name, map, reader); |
---|
| 1206 | } |
---|
| 1207 | |
---|
| 1208 | template <typename Reader, typename Map> |
---|
| 1209 | UndirEdgeSetReader& readEdgeMap(std::string name, const Map& map, |
---|
| 1210 | const Reader& reader = Reader()) { |
---|
| 1211 | return _readDirMap<Reader, Map, typename SmartParameter<Map>::Type> |
---|
| 1212 | (name, map, reader); |
---|
| 1213 | } |
---|
| 1214 | |
---|
| 1215 | private: |
---|
| 1216 | |
---|
| 1217 | template <typename Reader, typename Map, typename MapParameter> |
---|
| 1218 | UndirEdgeSetReader& _readDirMap(std::string name, MapParameter map, |
---|
[1492] | 1219 | const Reader& reader = Reader()) { |
---|
| 1220 | checkConcept<_reader_bits::ItemReader<typename Map::Value>, Reader>(); |
---|
| 1221 | checkConcept<concept::WriteMap<Edge, typename Map::Value>, Map>(); |
---|
[1421] | 1222 | readMap("+" + name, |
---|
| 1223 | _reader_bits::writeComposeMap(map, forwardMap(graph)), reader); |
---|
| 1224 | readMap("-" + name, |
---|
| 1225 | _reader_bits::writeComposeMap(map, backwardMap(graph)), reader); |
---|
| 1226 | return *this; |
---|
| 1227 | } |
---|
| 1228 | |
---|
| 1229 | public: |
---|
| 1230 | |
---|
| 1231 | /// \brief Add a new directed edge map skipper command for the reader. |
---|
| 1232 | /// |
---|
| 1233 | /// Add a new directed edge map skipper command for the reader. |
---|
| 1234 | template <typename Reader> |
---|
| 1235 | UndirEdgeSetReader& skipEdgeMap(std::string name, |
---|
| 1236 | const Reader& reader = Reader()) { |
---|
| 1237 | skipMap("+" + name, reader); |
---|
| 1238 | skipMap("-" + name, reader); |
---|
| 1239 | return *this; |
---|
| 1240 | } |
---|
| 1241 | |
---|
| 1242 | protected: |
---|
| 1243 | |
---|
| 1244 | /// \brief Gives back true when the SectionReader can process |
---|
| 1245 | /// the section with the given header line. |
---|
| 1246 | /// |
---|
| 1247 | /// It gives back true when the header line starts with \c \@undiredgeset, |
---|
| 1248 | /// and the header line's id and the edgeset's id are the same. |
---|
| 1249 | virtual bool header(const std::string& line) { |
---|
| 1250 | std::istringstream ls(line); |
---|
| 1251 | std::string command; |
---|
| 1252 | std::string name; |
---|
| 1253 | ls >> command >> name; |
---|
| 1254 | return command == "@undiredgeset" && name == id; |
---|
| 1255 | } |
---|
| 1256 | |
---|
| 1257 | /// \brief Reader function of the section. |
---|
| 1258 | /// |
---|
| 1259 | /// It reads the content of the section. |
---|
| 1260 | virtual void read(std::istream& is) { |
---|
[1476] | 1261 | if (!nodeIdReader->isIdReader()) { |
---|
| 1262 | throw DataFormatError("Cannot find nodeset or ID map"); |
---|
| 1263 | } |
---|
[1429] | 1264 | std::vector<ReaderBase<UndirEdge>* > index; |
---|
[1421] | 1265 | std::string line; |
---|
| 1266 | |
---|
| 1267 | getline(is, line); |
---|
| 1268 | std::istringstream ls(line); |
---|
| 1269 | while (ls >> id) { |
---|
| 1270 | typename MapReaders::iterator it = readers.find(id); |
---|
| 1271 | if (it != readers.end()) { |
---|
| 1272 | index.push_back(it->second); |
---|
| 1273 | } else { |
---|
| 1274 | index.push_back(&skipper); |
---|
| 1275 | } |
---|
| 1276 | if (id == "id" && inverter.get() == 0) { |
---|
| 1277 | inverter.reset(index.back()->getInverter()); |
---|
| 1278 | index.back() = inverter.get(); |
---|
| 1279 | } |
---|
| 1280 | } |
---|
| 1281 | while (getline(is, line)) { |
---|
| 1282 | std::istringstream ls(line); |
---|
[1429] | 1283 | Node from = nodeIdReader->read(ls); |
---|
| 1284 | Node to = nodeIdReader->read(ls); |
---|
| 1285 | UndirEdge edge = graph.addEdge(from, to); |
---|
[1421] | 1286 | for (int i = 0; i < (int)index.size(); ++i) { |
---|
| 1287 | index[i]->read(ls, edge); |
---|
| 1288 | } |
---|
| 1289 | } |
---|
| 1290 | } |
---|
| 1291 | |
---|
| 1292 | public: |
---|
| 1293 | |
---|
| 1294 | /// \brief Returns true if the edgeset can give back the edge by its id. |
---|
| 1295 | /// |
---|
| 1296 | /// Returns true if the edgeset can give back the undirected edge by its |
---|
| 1297 | /// id. It is possible only if an "id" named map was read. |
---|
| 1298 | bool isIdReader() const { |
---|
| 1299 | return inverter.get() != 0; |
---|
| 1300 | } |
---|
| 1301 | |
---|
| 1302 | /// \brief Gives back the undirected edge by its id. |
---|
| 1303 | /// |
---|
| 1304 | /// It reads an id from the stream and gives back which undirected edge |
---|
| 1305 | /// belongs to it. It is possible only if there was read an "id" named map. |
---|
[1492] | 1306 | void readId(std::istream& is, UndirEdge& undirEdge) const { |
---|
| 1307 | undirEdge = inverter->read(is); |
---|
[1421] | 1308 | } |
---|
| 1309 | |
---|
[1429] | 1310 | /// \brief Gives back the directed edge by its id. |
---|
| 1311 | /// |
---|
| 1312 | /// It reads an id from the stream and gives back which directed edge |
---|
| 1313 | /// belongs to it. The directed edge id is the \c '+' or \c '-' character |
---|
| 1314 | /// and the undirected edge id. It is possible only if there was read |
---|
| 1315 | /// an "id" named map. |
---|
[1492] | 1316 | void readId(std::istream& is, Edge& edge) const { |
---|
[1429] | 1317 | char c; |
---|
| 1318 | is >> c; |
---|
| 1319 | UndirEdge undirEdge = inverter->read(is); |
---|
| 1320 | if (c == '+') { |
---|
[1492] | 1321 | edge = graph.edgeWithSource(undirEdge, graph.source(undirEdge)); |
---|
[1429] | 1322 | } else if (c == '-') { |
---|
[1492] | 1323 | edge = graph.edgeWithSource(undirEdge, graph.target(undirEdge)); |
---|
[1429] | 1324 | } else { |
---|
| 1325 | throw DataFormatError("Wrong id format for edge " |
---|
| 1326 | "in undirected edgeset"); |
---|
| 1327 | } |
---|
| 1328 | } |
---|
| 1329 | |
---|
[1421] | 1330 | private: |
---|
| 1331 | |
---|
[1429] | 1332 | typedef std::map<std::string, ReaderBase<UndirEdge>*> MapReaders; |
---|
[1421] | 1333 | MapReaders readers; |
---|
| 1334 | |
---|
| 1335 | typename SmartReference<Graph>::Type graph; |
---|
[1408] | 1336 | std::string id; |
---|
[1429] | 1337 | SkipReader<UndirEdge, DefaultSkipper> skipper; |
---|
[1408] | 1338 | |
---|
[1429] | 1339 | std::auto_ptr<InverterBase<UndirEdge> > inverter; |
---|
| 1340 | std::auto_ptr<IdReaderBase<Node> > nodeIdReader; |
---|
[1408] | 1341 | }; |
---|
| 1342 | |
---|
[1409] | 1343 | /// \ingroup io_group |
---|
| 1344 | /// \brief SectionReader for reading labeled nodes. |
---|
| 1345 | /// |
---|
| 1346 | /// The nodes section's header line is \c \@nodes \c nodes_id, but the |
---|
| 1347 | /// \c nodes_id may be empty. |
---|
| 1348 | /// |
---|
| 1349 | /// Each line in the section contains the name of the node |
---|
| 1350 | /// and then the node id. |
---|
| 1351 | /// |
---|
| 1352 | /// \relates LemonReader |
---|
| 1353 | template <typename _Graph> |
---|
| 1354 | class NodeReader : public CommonSectionReaderBase { |
---|
| 1355 | typedef CommonSectionReaderBase Parent; |
---|
| 1356 | typedef _Graph Graph; |
---|
[1429] | 1357 | typedef typename Graph::Node Node; |
---|
[1409] | 1358 | public: |
---|
| 1359 | |
---|
| 1360 | /// \brief Constructor. |
---|
| 1361 | /// |
---|
| 1362 | /// Constructor for NodeReader. It creates the NodeReader and |
---|
| 1363 | /// attach it into the given LemonReader. It will use the given |
---|
| 1364 | /// node id reader to give back the nodes. The reader will read the |
---|
| 1365 | /// section only if the \c _id and the \c nodes_id are the same. |
---|
| 1366 | template <typename _IdReader> |
---|
| 1367 | NodeReader(LemonReader& _reader, const _IdReader& _idReader, |
---|
| 1368 | const std::string& _id = std::string()) |
---|
[1476] | 1369 | : Parent(_reader), id(_id) { |
---|
| 1370 | checkConcept<_reader_bits::ItemIdReader<Node>, _IdReader>(); |
---|
[1492] | 1371 | nodeIdReader.reset(new IdReader<Node, _IdReader>(_idReader)); |
---|
[1476] | 1372 | } |
---|
[1408] | 1373 | |
---|
[1409] | 1374 | /// \brief Destructor. |
---|
| 1375 | /// |
---|
| 1376 | /// Destructor for NodeReader. |
---|
| 1377 | virtual ~NodeReader() {} |
---|
| 1378 | |
---|
| 1379 | private: |
---|
| 1380 | NodeReader(const NodeReader&); |
---|
| 1381 | void operator=(const NodeReader&); |
---|
| 1382 | |
---|
| 1383 | public: |
---|
| 1384 | |
---|
| 1385 | /// \brief Add a node reader command for the NodeReader. |
---|
| 1386 | /// |
---|
| 1387 | /// Add a node reader command for the NodeReader. |
---|
[1429] | 1388 | void readNode(const std::string& name, Node& item) { |
---|
[1409] | 1389 | if (readers.find(name) != readers.end()) { |
---|
| 1390 | ErrorMessage msg; |
---|
| 1391 | msg << "Multiple read rule for node: " << name; |
---|
| 1392 | throw IOParameterError(msg.message()); |
---|
| 1393 | } |
---|
| 1394 | readers.insert(make_pair(name, &item)); |
---|
| 1395 | } |
---|
| 1396 | |
---|
| 1397 | protected: |
---|
| 1398 | |
---|
| 1399 | /// \brief Gives back true when the SectionReader can process |
---|
| 1400 | /// the section with the given header line. |
---|
| 1401 | /// |
---|
[1421] | 1402 | /// It gives back true when the header line start with \c \@nodes, |
---|
[1409] | 1403 | /// and the header line's id and the reader's id are the same. |
---|
| 1404 | virtual bool header(const std::string& line) { |
---|
| 1405 | std::istringstream ls(line); |
---|
| 1406 | std::string command; |
---|
| 1407 | std::string name; |
---|
| 1408 | ls >> command >> name; |
---|
| 1409 | return command == "@nodes" && name == id; |
---|
| 1410 | } |
---|
| 1411 | |
---|
| 1412 | /// \brief Reader function of the section. |
---|
| 1413 | /// |
---|
| 1414 | /// It reads the content of the section. |
---|
| 1415 | virtual void read(std::istream& is) { |
---|
[1492] | 1416 | if (!nodeIdReader->isIdReader()) { |
---|
[1476] | 1417 | throw DataFormatError("Cannot find nodeset or ID map"); |
---|
| 1418 | } |
---|
[1409] | 1419 | std::string line; |
---|
| 1420 | while (getline(is, line)) { |
---|
| 1421 | std::istringstream ls(line); |
---|
| 1422 | std::string id; |
---|
| 1423 | ls >> id; |
---|
[1429] | 1424 | typename NodeReaders::iterator it = readers.find(id); |
---|
[1409] | 1425 | if (it != readers.end()) { |
---|
[1492] | 1426 | *(it->second) = nodeIdReader->read(ls); |
---|
[1409] | 1427 | } |
---|
| 1428 | } |
---|
| 1429 | } |
---|
| 1430 | |
---|
| 1431 | private: |
---|
| 1432 | |
---|
| 1433 | std::string id; |
---|
| 1434 | |
---|
[1429] | 1435 | typedef std::map<std::string, Node*> NodeReaders; |
---|
| 1436 | NodeReaders readers; |
---|
[1492] | 1437 | std::auto_ptr<IdReaderBase<Node> > nodeIdReader; |
---|
[1409] | 1438 | }; |
---|
| 1439 | |
---|
| 1440 | /// \ingroup io_group |
---|
| 1441 | /// \brief SectionReader for reading labeled edges. |
---|
| 1442 | /// |
---|
| 1443 | /// The edges section's header line is \c \@edges \c edges_id, but the |
---|
| 1444 | /// \c edges_id may be empty. |
---|
| 1445 | /// |
---|
| 1446 | /// Each line in the section contains the name of the edge |
---|
| 1447 | /// and then the edge id. |
---|
| 1448 | /// |
---|
| 1449 | /// \relates LemonReader |
---|
| 1450 | template <typename _Graph> |
---|
| 1451 | class EdgeReader : public CommonSectionReaderBase { |
---|
| 1452 | typedef CommonSectionReaderBase Parent; |
---|
| 1453 | typedef _Graph Graph; |
---|
[1429] | 1454 | typedef typename Graph::Edge Edge; |
---|
[1409] | 1455 | public: |
---|
| 1456 | |
---|
| 1457 | /// \brief Constructor. |
---|
| 1458 | /// |
---|
| 1459 | /// Constructor for EdgeReader. It creates the EdgeReader and |
---|
| 1460 | /// attach it into the given LemonReader. It will use the given |
---|
| 1461 | /// edge id reader to give back the edges. The reader will read the |
---|
[1421] | 1462 | /// section only if the \c _id and the \c edges_id are the same. |
---|
[1409] | 1463 | template <typename _IdReader> |
---|
| 1464 | EdgeReader(LemonReader& _reader, const _IdReader& _idReader, |
---|
| 1465 | const std::string& _id = std::string()) |
---|
[1476] | 1466 | : Parent(_reader), id(_id) { |
---|
| 1467 | checkConcept<_reader_bits::ItemIdReader<Edge>, _IdReader>(); |
---|
[1492] | 1468 | edgeIdReader.reset(new IdReader<Edge, _IdReader>(_idReader)); |
---|
[1476] | 1469 | } |
---|
[1409] | 1470 | |
---|
| 1471 | /// \brief Destructor. |
---|
| 1472 | /// |
---|
| 1473 | /// Destructor for EdgeReader. |
---|
| 1474 | virtual ~EdgeReader() {} |
---|
| 1475 | private: |
---|
| 1476 | EdgeReader(const EdgeReader&); |
---|
| 1477 | void operator=(const EdgeReader&); |
---|
| 1478 | |
---|
| 1479 | public: |
---|
| 1480 | |
---|
| 1481 | /// \brief Add an edge reader command for the EdgeReader. |
---|
| 1482 | /// |
---|
| 1483 | /// Add an edge reader command for the EdgeReader. |
---|
[1429] | 1484 | void readEdge(const std::string& name, Edge& item) { |
---|
[1409] | 1485 | if (readers.find(name) != readers.end()) { |
---|
| 1486 | ErrorMessage msg; |
---|
| 1487 | msg << "Multiple read rule for edge: " << name; |
---|
| 1488 | throw IOParameterError(msg.message()); |
---|
| 1489 | } |
---|
| 1490 | readers.insert(make_pair(name, &item)); |
---|
| 1491 | } |
---|
| 1492 | |
---|
| 1493 | protected: |
---|
| 1494 | |
---|
| 1495 | /// \brief Gives back true when the SectionReader can process |
---|
| 1496 | /// the section with the given header line. |
---|
| 1497 | /// |
---|
[1421] | 1498 | /// It gives back true when the header line start with \c \@edges, |
---|
| 1499 | /// and the header line's id and the reader's id are the same. |
---|
| 1500 | virtual bool header(const std::string& line) { |
---|
| 1501 | std::istringstream ls(line); |
---|
| 1502 | std::string command; |
---|
| 1503 | std::string name; |
---|
| 1504 | ls >> command >> name; |
---|
| 1505 | return command == "@edges" && name == id; |
---|
| 1506 | } |
---|
| 1507 | |
---|
| 1508 | /// \brief Reader function of the section. |
---|
| 1509 | /// |
---|
| 1510 | /// It reads the content of the section. |
---|
| 1511 | virtual void read(std::istream& is) { |
---|
[1492] | 1512 | if (!edgeIdReader->isIdReader()) { |
---|
[1476] | 1513 | throw DataFormatError("Cannot find edgeset or ID map"); |
---|
| 1514 | } |
---|
[1421] | 1515 | std::string line; |
---|
| 1516 | while (getline(is, line)) { |
---|
| 1517 | std::istringstream ls(line); |
---|
| 1518 | std::string id; |
---|
| 1519 | ls >> id; |
---|
[1429] | 1520 | typename EdgeReaders::iterator it = readers.find(id); |
---|
[1421] | 1521 | if (it != readers.end()) { |
---|
[1492] | 1522 | *(it->second) = edgeIdReader->read(ls); |
---|
[1421] | 1523 | } |
---|
| 1524 | } |
---|
| 1525 | } |
---|
| 1526 | |
---|
| 1527 | private: |
---|
| 1528 | |
---|
| 1529 | std::string id; |
---|
| 1530 | |
---|
[1429] | 1531 | typedef std::map<std::string, Edge*> EdgeReaders; |
---|
| 1532 | EdgeReaders readers; |
---|
[1492] | 1533 | std::auto_ptr<IdReaderBase<Edge> > edgeIdReader; |
---|
[1421] | 1534 | }; |
---|
| 1535 | |
---|
| 1536 | /// \ingroup io_group |
---|
| 1537 | /// \brief SectionReader for reading labeled undirected edges. |
---|
| 1538 | /// |
---|
| 1539 | /// The undirected edges section's header line is \c \@undiredges |
---|
| 1540 | /// \c undiredges_id, but the \c undiredges_id may be empty. |
---|
| 1541 | /// |
---|
| 1542 | /// Each line in the section contains the name of the undirected edge |
---|
| 1543 | /// and then the undirected edge id. |
---|
| 1544 | /// |
---|
| 1545 | /// \relates LemonReader |
---|
| 1546 | template <typename _Graph> |
---|
| 1547 | class UndirEdgeReader : public CommonSectionReaderBase { |
---|
| 1548 | typedef CommonSectionReaderBase Parent; |
---|
| 1549 | typedef _Graph Graph; |
---|
[1429] | 1550 | typedef typename Graph::Edge Edge; |
---|
| 1551 | typedef typename Graph::UndirEdge UndirEdge; |
---|
[1421] | 1552 | public: |
---|
| 1553 | |
---|
| 1554 | /// \brief Constructor. |
---|
| 1555 | /// |
---|
| 1556 | /// Constructor for UndirEdgeReader. It creates the UndirEdgeReader and |
---|
| 1557 | /// attach it into the given LemonReader. It will use the given |
---|
| 1558 | /// undirected edge id reader to give back the edges. The reader will |
---|
| 1559 | /// read the section only if the \c _id and the \c undiredges_id are |
---|
| 1560 | /// the same. |
---|
| 1561 | template <typename _IdReader> |
---|
| 1562 | UndirEdgeReader(LemonReader& _reader, const _IdReader& _idReader, |
---|
| 1563 | const std::string& _id = std::string()) |
---|
[1476] | 1564 | : Parent(_reader), id(_id) { |
---|
| 1565 | checkConcept<_reader_bits::ItemIdReader<UndirEdge>, _IdReader>(); |
---|
| 1566 | checkConcept<_reader_bits::ItemIdReader<Edge>, _IdReader>(); |
---|
| 1567 | undirEdgeIdReader.reset(new IdReader<UndirEdge, _IdReader>(_idReader)); |
---|
[1477] | 1568 | edgeIdReader.reset(new IdReader<Edge, _IdReader>(_idReader)); |
---|
[1476] | 1569 | } |
---|
[1421] | 1570 | |
---|
| 1571 | /// \brief Destructor. |
---|
| 1572 | /// |
---|
| 1573 | /// Destructor for UndirEdgeReader. |
---|
| 1574 | virtual ~UndirEdgeReader() {} |
---|
| 1575 | private: |
---|
| 1576 | UndirEdgeReader(const UndirEdgeReader&); |
---|
| 1577 | void operator=(const UndirEdgeReader&); |
---|
| 1578 | |
---|
| 1579 | public: |
---|
| 1580 | |
---|
| 1581 | /// \brief Add an undirected edge reader command for the UndirEdgeReader. |
---|
| 1582 | /// |
---|
| 1583 | /// Add an undirected edge reader command for the UndirEdgeReader. |
---|
[1429] | 1584 | void readUndirEdge(const std::string& name, UndirEdge& item) { |
---|
| 1585 | if (undirEdgeReaders.find(name) != undirEdgeReaders.end()) { |
---|
| 1586 | ErrorMessage msg; |
---|
| 1587 | msg << "Multiple read rule for undirected edge: " << name; |
---|
| 1588 | throw IOParameterError(msg.message()); |
---|
| 1589 | } |
---|
| 1590 | undirEdgeReaders.insert(make_pair(name, &item)); |
---|
| 1591 | } |
---|
| 1592 | |
---|
| 1593 | /// \brief Add an edge reader command for the UndirEdgeReader. |
---|
| 1594 | /// |
---|
| 1595 | /// Add an edge reader command for the UndirEdgeReader. |
---|
| 1596 | void readEdge(const std::string& name, Edge& item) { |
---|
| 1597 | if (edgeReaders.find(name) != edgeReaders.end()) { |
---|
[1421] | 1598 | ErrorMessage msg; |
---|
| 1599 | msg << "Multiple read rule for edge: " << name; |
---|
| 1600 | throw IOParameterError(msg.message()); |
---|
| 1601 | } |
---|
[1429] | 1602 | edgeReaders.insert(make_pair(name, &item)); |
---|
[1421] | 1603 | } |
---|
| 1604 | |
---|
| 1605 | protected: |
---|
| 1606 | |
---|
| 1607 | /// \brief Gives back true when the SectionReader can process |
---|
| 1608 | /// the section with the given header line. |
---|
| 1609 | /// |
---|
| 1610 | /// It gives back true when the header line start with \c \@edges, |
---|
[1409] | 1611 | /// and the header line's id and the reader's id are the same. |
---|
| 1612 | virtual bool header(const std::string& line) { |
---|
| 1613 | std::istringstream ls(line); |
---|
| 1614 | std::string command; |
---|
| 1615 | std::string name; |
---|
| 1616 | ls >> command >> name; |
---|
[1429] | 1617 | return command == "@undiredges" && name == id; |
---|
[1409] | 1618 | } |
---|
| 1619 | |
---|
| 1620 | /// \brief Reader function of the section. |
---|
| 1621 | /// |
---|
| 1622 | /// It reads the content of the section. |
---|
| 1623 | virtual void read(std::istream& is) { |
---|
[1476] | 1624 | if (!edgeIdReader->isIdReader()) { |
---|
| 1625 | throw DataFormatError("Cannot find undirected edgeset or ID map"); |
---|
| 1626 | } |
---|
| 1627 | if (!undirEdgeIdReader->isIdReader()) { |
---|
| 1628 | throw DataFormatError("Cannot find undirected edgeset or ID map"); |
---|
| 1629 | } |
---|
[1409] | 1630 | std::string line; |
---|
| 1631 | while (getline(is, line)) { |
---|
| 1632 | std::istringstream ls(line); |
---|
| 1633 | std::string id; |
---|
| 1634 | ls >> id; |
---|
[1429] | 1635 | { |
---|
| 1636 | typename UndirEdgeReaders::iterator it = undirEdgeReaders.find(id); |
---|
| 1637 | if (it != undirEdgeReaders.end()) { |
---|
| 1638 | *(it->second) = undirEdgeIdReader->read(ls); |
---|
| 1639 | break; |
---|
| 1640 | } |
---|
| 1641 | } { |
---|
| 1642 | typename EdgeReaders::iterator it = edgeReaders.find(id); |
---|
| 1643 | if (it != edgeReaders.end()) { |
---|
| 1644 | *(it->second) = edgeIdReader->read(ls); |
---|
| 1645 | break; |
---|
| 1646 | } |
---|
| 1647 | } |
---|
[1409] | 1648 | } |
---|
| 1649 | } |
---|
| 1650 | |
---|
| 1651 | private: |
---|
| 1652 | |
---|
| 1653 | std::string id; |
---|
| 1654 | |
---|
[1429] | 1655 | typedef std::map<std::string, UndirEdge*> UndirEdgeReaders; |
---|
| 1656 | UndirEdgeReaders undirEdgeReaders; |
---|
| 1657 | std::auto_ptr<IdReaderBase<UndirEdge> > undirEdgeIdReader; |
---|
| 1658 | |
---|
| 1659 | typedef std::map<std::string, Edge*> EdgeReaders; |
---|
| 1660 | EdgeReaders edgeReaders; |
---|
| 1661 | std::auto_ptr<IdReaderBase<Edge> > edgeIdReader; |
---|
[1409] | 1662 | }; |
---|
| 1663 | |
---|
| 1664 | /// \ingroup io_group |
---|
| 1665 | /// \brief SectionReader for attributes. |
---|
| 1666 | /// |
---|
| 1667 | /// The lemon format can store multiple attribute set. Each set has |
---|
| 1668 | /// the header line \c \@attributes \c attributeset_id, but the |
---|
| 1669 | /// attributeset_id may be empty. |
---|
| 1670 | /// |
---|
| 1671 | /// The attributeset section contains several lines. Each of them starts |
---|
| 1672 | /// with an attribute and then a the value for the id. |
---|
| 1673 | /// |
---|
| 1674 | /// \relates LemonReader |
---|
[1408] | 1675 | template <typename _Traits = DefaultReaderTraits> |
---|
| 1676 | class AttributeReader : public CommonSectionReaderBase { |
---|
| 1677 | typedef CommonSectionReaderBase Parent; |
---|
| 1678 | typedef _Traits Traits; |
---|
| 1679 | public: |
---|
[1409] | 1680 | /// \brief Constructor. |
---|
| 1681 | /// |
---|
| 1682 | /// Constructor for AttributeReader. It creates the AttributeReader and |
---|
| 1683 | /// attach it into the given LemonReader. The reader process a section |
---|
| 1684 | /// only if the \c section_id and the \c _id are the same. |
---|
[1408] | 1685 | AttributeReader(LemonReader& _reader, |
---|
[1409] | 1686 | const std::string& _id = std::string()) |
---|
| 1687 | : Parent(_reader), id(_id) {} |
---|
[1408] | 1688 | |
---|
[1409] | 1689 | /// \brief Destructor. |
---|
| 1690 | /// |
---|
| 1691 | /// Destructor for AttributeReader. |
---|
[1408] | 1692 | virtual ~AttributeReader() { |
---|
| 1693 | for (typename Readers::iterator it = readers.begin(); |
---|
| 1694 | it != readers.end(); ++it) { |
---|
| 1695 | delete it->second; |
---|
| 1696 | } |
---|
| 1697 | } |
---|
| 1698 | |
---|
| 1699 | private: |
---|
| 1700 | AttributeReader(const AttributeReader&); |
---|
| 1701 | void operator=(AttributeReader&); |
---|
| 1702 | |
---|
| 1703 | public: |
---|
[1409] | 1704 | /// \brief Add an attribute reader command for the reader. |
---|
| 1705 | /// |
---|
| 1706 | /// Add an attribute reader command for the reader. |
---|
[1408] | 1707 | template <typename Value> |
---|
| 1708 | AttributeReader& readAttribute(const std::string& id, Value& value) { |
---|
| 1709 | return readAttribute<typename Traits::template Reader<Value> > |
---|
| 1710 | (id, value); |
---|
| 1711 | } |
---|
| 1712 | |
---|
[1409] | 1713 | /// \brief Add an attribute reader command for the reader. |
---|
| 1714 | /// |
---|
| 1715 | /// Add an attribute reader command for the reader. |
---|
[1408] | 1716 | template <typename Reader, typename Value> |
---|
| 1717 | AttributeReader& readAttribute(const std::string& name, Value& value, |
---|
| 1718 | const Reader& reader = Reader()) { |
---|
[1492] | 1719 | checkConcept<_reader_bits::ItemReader<Value>, Reader>(); |
---|
[1408] | 1720 | if (readers.find(name) != readers.end()) { |
---|
| 1721 | ErrorMessage msg; |
---|
| 1722 | msg << "Multiple read rule for attribute: " << name; |
---|
| 1723 | throw IOParameterError(msg.message()); |
---|
| 1724 | } |
---|
| 1725 | readers.insert(make_pair(name, new ValueReader<Value, Reader> |
---|
| 1726 | (value, reader))); |
---|
| 1727 | return *this; |
---|
| 1728 | } |
---|
| 1729 | |
---|
[1409] | 1730 | protected: |
---|
| 1731 | |
---|
| 1732 | /// \brief Gives back true when the SectionReader can process |
---|
| 1733 | /// the section with the given header line. |
---|
| 1734 | /// |
---|
[1421] | 1735 | /// It gives back true when the header line start with \c \@attributes, |
---|
[1409] | 1736 | /// and the header line's id and the attributeset's id are the same. |
---|
[1408] | 1737 | bool header(const std::string& line) { |
---|
| 1738 | std::istringstream ls(line); |
---|
| 1739 | std::string command; |
---|
| 1740 | std::string name; |
---|
| 1741 | ls >> command >> name; |
---|
| 1742 | return command == "@attributes" && name == id; |
---|
| 1743 | } |
---|
| 1744 | |
---|
[1409] | 1745 | /// \brief Reader function of the section. |
---|
| 1746 | /// |
---|
| 1747 | /// It reads the content of the section. |
---|
[1408] | 1748 | void read(std::istream& is) { |
---|
| 1749 | std::string line; |
---|
| 1750 | while (getline(is, line)) { |
---|
| 1751 | std::istringstream ls(line); |
---|
| 1752 | std::string id; |
---|
| 1753 | ls >> id; |
---|
| 1754 | typename Readers::iterator it = readers.find(id); |
---|
| 1755 | if (it != readers.end()) { |
---|
| 1756 | it->second->read(ls); |
---|
| 1757 | } |
---|
| 1758 | } |
---|
| 1759 | } |
---|
| 1760 | |
---|
| 1761 | private: |
---|
| 1762 | std::string id; |
---|
| 1763 | |
---|
| 1764 | typedef std::map<std::string, ValueReaderBase*> Readers; |
---|
[1409] | 1765 | Readers readers; |
---|
[1408] | 1766 | }; |
---|
| 1767 | |
---|
[1423] | 1768 | /// \ingroup io_group |
---|
| 1769 | /// \brief SectionReader for retrieve what is in the file. |
---|
| 1770 | /// |
---|
| 1771 | /// SectionReader for retrieve what is in the file. If you want |
---|
| 1772 | /// to know which sections, maps and items are in the file |
---|
| 1773 | /// use the next code: |
---|
| 1774 | /// \code |
---|
| 1775 | /// LemonReader reader("input.lgf"); |
---|
| 1776 | /// ContentReader content(reader); |
---|
| 1777 | /// reader.run(); |
---|
| 1778 | /// \endcode |
---|
| 1779 | class ContentReader : public LemonReader::SectionReader { |
---|
| 1780 | typedef LemonReader::SectionReader Parent; |
---|
| 1781 | public: |
---|
| 1782 | /// \brief Constructor. |
---|
| 1783 | /// |
---|
| 1784 | /// Constructor for |
---|
| 1785 | ContentReader(LemonReader& _reader) : Parent(_reader) {} |
---|
| 1786 | |
---|
| 1787 | /// \brief Desctructor. |
---|
| 1788 | /// |
---|
| 1789 | /// Desctructor. |
---|
| 1790 | virtual ~ContentReader() {} |
---|
| 1791 | |
---|
| 1792 | /// \brief Gives back how many nodesets are in the file. |
---|
| 1793 | /// |
---|
| 1794 | /// Gives back how many nodesets are in the file. |
---|
| 1795 | int nodeSetNum() const { |
---|
| 1796 | return nodesets.size(); |
---|
| 1797 | } |
---|
| 1798 | |
---|
| 1799 | /// \brief Gives back the name of nodeset on the indiced position. |
---|
| 1800 | /// |
---|
| 1801 | /// Gives back the name of nodeset on the indiced position. |
---|
| 1802 | std::string nodeSetName(int index) const { |
---|
| 1803 | return nodesets[index].name; |
---|
| 1804 | } |
---|
| 1805 | |
---|
| 1806 | /// \brief Gives back the map names of nodeset on the indiced position. |
---|
| 1807 | /// |
---|
| 1808 | /// Gives back the map names of nodeset on the indiced position. |
---|
| 1809 | const std::vector<std::string>& nodeSetMaps(int index) const { |
---|
| 1810 | return nodesets[index].items; |
---|
| 1811 | } |
---|
| 1812 | |
---|
| 1813 | /// \brief Gives back how many edgesets are in the file. |
---|
| 1814 | /// |
---|
| 1815 | /// Gives back how many edgesets are in the file. |
---|
| 1816 | int edgeSetNum() const { |
---|
| 1817 | return edgesets.size(); |
---|
| 1818 | } |
---|
| 1819 | |
---|
| 1820 | /// \brief Gives back the name of edgeset on the indiced position. |
---|
| 1821 | /// |
---|
| 1822 | /// Gives back the name of edgeset on the indiced position. |
---|
| 1823 | std::string edgeSetName(int index) const { |
---|
| 1824 | return edgesets[index].name; |
---|
| 1825 | } |
---|
| 1826 | |
---|
| 1827 | /// \brief Gives back the map names of edgeset on the indiced position. |
---|
| 1828 | /// |
---|
| 1829 | /// Gives back the map names of edgeset on the indiced position. |
---|
| 1830 | const std::vector<std::string>& edgeSetMaps(int index) const { |
---|
| 1831 | return edgesets[index].items; |
---|
| 1832 | } |
---|
| 1833 | |
---|
| 1834 | /// \brief Gives back how many undirected edgesets are in the file. |
---|
| 1835 | /// |
---|
| 1836 | /// Gives back how many undirected edgesets are in the file. |
---|
| 1837 | int undirEdgeSetNum() const { |
---|
| 1838 | return undiredgesets.size(); |
---|
| 1839 | } |
---|
| 1840 | |
---|
| 1841 | /// \brief Gives back the name of undirected edgeset on the indiced |
---|
| 1842 | /// position. |
---|
| 1843 | /// |
---|
| 1844 | /// Gives back the name of undirected edgeset on the indiced position. |
---|
| 1845 | std::string undirEdgeSetName(int index) const { |
---|
| 1846 | return undiredgesets[index].name; |
---|
| 1847 | } |
---|
| 1848 | |
---|
| 1849 | /// \brief Gives back the map names of undirected edgeset on the indiced |
---|
| 1850 | /// position. |
---|
| 1851 | /// |
---|
| 1852 | /// Gives back the map names of undirected edgeset on the indiced position. |
---|
| 1853 | const std::vector<std::string>& undirEdgeSetMaps(int index) const { |
---|
| 1854 | return undiredgesets[index].items; |
---|
| 1855 | } |
---|
| 1856 | |
---|
| 1857 | /// \brief Gives back how many labeled nodes section are in the file. |
---|
| 1858 | /// |
---|
| 1859 | /// Gives back how many labeled nodes section are in the file. |
---|
| 1860 | int nodesNum() const { |
---|
| 1861 | return nodes.size(); |
---|
| 1862 | } |
---|
| 1863 | |
---|
| 1864 | /// \brief Gives back the name of labeled nodes section on the indiced |
---|
| 1865 | /// position. |
---|
| 1866 | /// |
---|
| 1867 | /// Gives back the name of labeled nodes section on the indiced position. |
---|
| 1868 | std::string nodesName(int index) const { |
---|
| 1869 | return nodes[index].name; |
---|
| 1870 | } |
---|
| 1871 | |
---|
| 1872 | /// \brief Gives back the names of the labeled nodes in the indiced |
---|
| 1873 | /// section. |
---|
| 1874 | /// |
---|
| 1875 | /// Gives back the names of the labeled nodes in the indiced section. |
---|
| 1876 | const std::vector<std::string>& nodesItems(int index) const { |
---|
| 1877 | return nodes[index].items; |
---|
| 1878 | } |
---|
| 1879 | |
---|
| 1880 | /// \brief Gives back how many labeled edges section are in the file. |
---|
| 1881 | /// |
---|
| 1882 | /// Gives back how many labeled edges section are in the file. |
---|
| 1883 | int edgesNum() const { |
---|
| 1884 | return edges.size(); |
---|
| 1885 | } |
---|
| 1886 | |
---|
| 1887 | /// \brief Gives back the name of labeled edges section on the indiced |
---|
| 1888 | /// position. |
---|
| 1889 | /// |
---|
| 1890 | /// Gives back the name of labeled edges section on the indiced position. |
---|
| 1891 | std::string edgesName(int index) const { |
---|
| 1892 | return edges[index].name; |
---|
| 1893 | } |
---|
| 1894 | |
---|
| 1895 | /// \brief Gives back the names of the labeled edges in the indiced |
---|
| 1896 | /// section. |
---|
| 1897 | /// |
---|
| 1898 | /// Gives back the names of the labeled edges in the indiced section. |
---|
| 1899 | const std::vector<std::string>& edgesItems(int index) const { |
---|
| 1900 | return edges[index].items; |
---|
| 1901 | } |
---|
| 1902 | |
---|
| 1903 | /// \brief Gives back how many labeled undirected edges section are |
---|
| 1904 | /// in the file. |
---|
| 1905 | /// |
---|
| 1906 | /// Gives back how many labeled undirected edges section are in the file. |
---|
| 1907 | int undirEdgesNum() const { |
---|
| 1908 | return undiredges.size(); |
---|
| 1909 | } |
---|
| 1910 | |
---|
| 1911 | /// \brief Gives back the name of labeled undirected edges section |
---|
| 1912 | /// on the indiced position. |
---|
| 1913 | /// |
---|
| 1914 | /// Gives back the name of labeled undirected edges section on the |
---|
| 1915 | /// indiced position. |
---|
| 1916 | std::string undirEdgesName(int index) const { |
---|
| 1917 | return undiredges[index].name; |
---|
| 1918 | } |
---|
| 1919 | |
---|
| 1920 | /// \brief Gives back the names of the labeled undirected edges in |
---|
| 1921 | /// the indiced section. |
---|
| 1922 | /// |
---|
| 1923 | /// Gives back the names of the labeled undirected edges in the |
---|
| 1924 | /// indiced section. |
---|
| 1925 | const std::vector<std::string>& undirEdgesItems(int index) const { |
---|
| 1926 | return undiredges[index].items; |
---|
| 1927 | } |
---|
| 1928 | |
---|
| 1929 | |
---|
| 1930 | /// \brief Gives back how many attributes section are in the file. |
---|
| 1931 | /// |
---|
| 1932 | /// Gives back how many attributes section are in the file. |
---|
| 1933 | int attributesNum() const { |
---|
| 1934 | return attributes.size(); |
---|
| 1935 | } |
---|
| 1936 | |
---|
| 1937 | /// \brief Gives back the name of attributes section on the indiced |
---|
| 1938 | /// position. |
---|
| 1939 | /// |
---|
| 1940 | /// Gives back the name of attributes section on the indiced position. |
---|
| 1941 | std::string attributesName(int index) const { |
---|
| 1942 | return attributes[index].name; |
---|
| 1943 | } |
---|
| 1944 | |
---|
| 1945 | /// \brief Gives back the names of the attributes in the indiced section. |
---|
| 1946 | /// |
---|
| 1947 | /// Gives back the names of the attributes in the indiced section. |
---|
| 1948 | const std::vector<std::string>& attributesItems(int index) const { |
---|
| 1949 | return attributes[index].items; |
---|
| 1950 | } |
---|
| 1951 | |
---|
| 1952 | const std::vector<std::string>& otherSections() const { |
---|
| 1953 | return sections; |
---|
| 1954 | } |
---|
| 1955 | |
---|
| 1956 | protected: |
---|
| 1957 | |
---|
| 1958 | /// \brief Gives back true when the SectionReader can process |
---|
| 1959 | /// the section with the given header line. |
---|
| 1960 | /// |
---|
| 1961 | /// It gives back true when the section is common section. |
---|
| 1962 | bool header(const std::string& line) { |
---|
| 1963 | std::istringstream ls(line); |
---|
| 1964 | std::string command, name; |
---|
| 1965 | ls >> command >> name; |
---|
| 1966 | if (command == "@nodeset") { |
---|
| 1967 | current = command; |
---|
| 1968 | nodesets.push_back(SectionInfo(name)); |
---|
| 1969 | } else if (command == "@edgeset") { |
---|
| 1970 | current = command; |
---|
| 1971 | edgesets.push_back(SectionInfo(name)); |
---|
| 1972 | } else if (command == "@undiredgeset") { |
---|
| 1973 | current = command; |
---|
| 1974 | undiredgesets.push_back(SectionInfo(name)); |
---|
| 1975 | } else if (command == "@nodes") { |
---|
| 1976 | current = command; |
---|
| 1977 | nodes.push_back(SectionInfo(name)); |
---|
| 1978 | } else if (command == "@edges") { |
---|
| 1979 | current = command; |
---|
| 1980 | edges.push_back(SectionInfo(name)); |
---|
| 1981 | } else if (command == "@undiredges") { |
---|
| 1982 | current = command; |
---|
| 1983 | undiredges.push_back(SectionInfo(name)); |
---|
| 1984 | } else if (command == "@attributes") { |
---|
| 1985 | current = command; |
---|
| 1986 | attributes.push_back(SectionInfo(name)); |
---|
| 1987 | } else { |
---|
| 1988 | sections.push_back(line); |
---|
| 1989 | return false; |
---|
| 1990 | } |
---|
| 1991 | return true; |
---|
| 1992 | } |
---|
| 1993 | |
---|
| 1994 | /// \brief Retrieve the items from various sections. |
---|
| 1995 | /// |
---|
| 1996 | /// Retrieve the items from various sections. |
---|
| 1997 | void read(std::istream& is) { |
---|
| 1998 | if (current == "@nodeset") { |
---|
| 1999 | readMapNames(is, nodesets.back().items); |
---|
| 2000 | } else if (current == "@edgeset") { |
---|
| 2001 | readMapNames(is, edgesets.back().items); |
---|
| 2002 | } else if (current == "@undiredgeset") { |
---|
| 2003 | readMapNames(is, undiredgesets.back().items); |
---|
| 2004 | } else if (current == "@nodes") { |
---|
| 2005 | readItemNames(is, nodes.back().items); |
---|
| 2006 | } else if (current == "@edges") { |
---|
| 2007 | readItemNames(is, edges.back().items); |
---|
| 2008 | } else if (current == "@undiredges") { |
---|
| 2009 | readItemNames(is, undiredges.back().items); |
---|
| 2010 | } else if (current == "@attributes") { |
---|
| 2011 | readItemNames(is, attributes.back().items); |
---|
| 2012 | } |
---|
| 2013 | } |
---|
| 2014 | |
---|
| 2015 | private: |
---|
| 2016 | |
---|
| 2017 | void readMapNames(std::istream& is, std::vector<std::string>& maps) { |
---|
| 2018 | std::string line, id; |
---|
| 2019 | std::getline(is, line); |
---|
| 2020 | std::istringstream ls(line); |
---|
| 2021 | while (ls >> id) { |
---|
| 2022 | maps.push_back(id); |
---|
| 2023 | } |
---|
| 2024 | while (getline(is, line)); |
---|
| 2025 | } |
---|
| 2026 | |
---|
| 2027 | void readItemNames(std::istream& is, std::vector<std::string>& maps) { |
---|
| 2028 | std::string line, id; |
---|
| 2029 | while (std::getline(is, line)) { |
---|
| 2030 | std::istringstream ls(line); |
---|
| 2031 | ls >> id; |
---|
| 2032 | maps.push_back(id); |
---|
| 2033 | } |
---|
| 2034 | } |
---|
| 2035 | |
---|
| 2036 | struct SectionInfo { |
---|
| 2037 | std::string name; |
---|
| 2038 | std::vector<std::string> items; |
---|
| 2039 | |
---|
| 2040 | SectionInfo(const std::string& _name) : name(_name) {} |
---|
| 2041 | }; |
---|
| 2042 | |
---|
| 2043 | std::vector<SectionInfo> nodesets; |
---|
| 2044 | std::vector<SectionInfo> edgesets; |
---|
| 2045 | std::vector<SectionInfo> undiredgesets; |
---|
| 2046 | |
---|
| 2047 | std::vector<SectionInfo> nodes; |
---|
| 2048 | std::vector<SectionInfo> edges; |
---|
| 2049 | std::vector<SectionInfo> undiredges; |
---|
| 2050 | |
---|
| 2051 | std::vector<SectionInfo> attributes; |
---|
| 2052 | |
---|
| 2053 | std::vector<std::string> sections; |
---|
| 2054 | |
---|
| 2055 | std::string current; |
---|
| 2056 | |
---|
| 2057 | }; |
---|
| 2058 | |
---|
[1408] | 2059 | } |
---|
| 2060 | #endif |
---|