libs/algorithm/string/doc/quickref.xml

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   3 "http://www.boost.org/tools/boostbook/dtd/boostbook.dtd">
   4
   5 <!-- Copyright (c) 2002-2006 Pavol Droba.
   6      Subject to the Boost Software License, Version 1.0.
   7      (See accompanying file LICENSE_1_0.txt or  http://www.boost.org/LICENSE_1_0.txt)
   8 -->
   9
  10 <section id="string_algo.quickref" last-revision="$Date: 2012-01-15 08:49:25 -0800 (Sun, 15 Jan 2012) $">
  11     <title>Quick Reference</title>
  12
  13     <using-namespace name="boost"/>
  14     <using-namespace name="boost::algorithm"/>
  15
  16     <section>
  17         <title>Algorithms</title>
  18
  19         <table>
  20             <title>Case Conversion</title>
  21             <tgroup cols="3" align="left">
  22                 <thead>
  23                     <row>
  24                         <entry>Algorithm name</entry>
  25                         <entry>Description</entry>
  26                         <entry>Functions</entry>
  27                     </row>
  28                 </thead>
  29                 <tbody>
  30                     <row>
  31                         <entry><code>to_upper</code></entry>
  32                         <entry>Convert a string to upper case</entry>
  33                         <entry>
  34                             <functionname>to_upper_copy()</functionname>
  35                             <sbr/>
  36                             <functionname>to_upper()</functionname>
  37                         </entry>
  38                     </row>
  39                     <row>
  40                         <entry><code>to_lower</code></entry>
  41                         <entry>Convert a string to lower case</entry>
  42                         <entry>
  43                             <functionname>to_lower_copy()</functionname>
  44                             <sbr/>
  45                             <functionname>to_lower()</functionname>
  46                         </entry>
  47                     </row>
  48                 </tbody>
  49             </tgroup>
  50         </table>
  51         <table>
  52             <title>Trimming</title>
  53             <tgroup cols="3" align="left">
  54                 <thead>
  55                     <row>
  56                         <entry>Algorithm name</entry>
  57                         <entry>Description</entry>
  58                         <entry>Functions</entry>
  59                     </row>
  60                 </thead>
  61                 <tbody>
  62                     <row>
  63                         <entry><code>trim_left</code></entry>
  64                         <entry>Remove leading spaces from a string</entry>
  65                         <entry>
  66                             <functionname>trim_left_copy_if()</functionname>
  67                             <sbr/>
  68                             <functionname>trim_left_if()</functionname>
  69                             <sbr/>
  70                             <functionname>trim_left_copy()</functionname>
  71                             <sbr/>
  72                             <functionname>trim_left()</functionname>
  73                         </entry>
  74                     </row>
  75                     <row>
  76                         <entry><code>trim_right</code></entry>
  77                         <entry>Remove trailing spaces from a string</entry>
  78                         <entry>
  79                             <functionname>trim_right_copy_if()</functionname>
  80                             <sbr/>
  81                             <functionname>trim_right_if()</functionname>
  82                             <sbr/>
  83                             <functionname>trim_right_copy()</functionname>
  84                             <sbr/>
  85                             <functionname>trim_right()</functionname>
  86                         </entry>
  87                     </row>
  88                     <row>
  89                         <entry><code>trim</code></entry>
  90                         <entry>Remove leading and trailing spaces from a string</entry>
  91                         <entry>
  92                             <functionname>trim_copy_if()</functionname>
  93                             <sbr/>
  94                             <functionname>trim_if()</functionname>
  95                             <sbr/>
  96                             <functionname>trim_copy()</functionname>
  97                             <sbr/>
  98                             <functionname>trim()</functionname>
  99                         </entry>
 100                     </row>
 101
 102                 </tbody>
 103             </tgroup>
 104         </table>
 105         <table>
 106             <title>Predicates</title>
 107             <tgroup cols="3" align="left">
 108                 <thead>
 109                     <row>
 110                         <entry>Algorithm name</entry>
 111                         <entry>Description</entry>
 112                         <entry>Functions</entry>
 113                     </row>
 114                 </thead>
 115                 <tbody>
 116                     <row>
 117                         <entry><code>starts_with</code></entry>
 118                         <entry>Check if a string is a prefix of the other one</entry>
 119                         <entry>
 120                             <functionname>starts_with()</functionname>
 121                             <sbr/>
 122                             <functionname>istarts_with()</functionname>
 123                         </entry>
 124                     </row>
 125                     <row>
 126                         <entry><code>ends_with</code></entry>
 127                         <entry>Check if a string is a suffix of the other one</entry>
 128                         <entry>
 129                             <functionname>ends_with()</functionname>
 130                             <sbr/>
 131                             <functionname>iends_with()</functionname>
 132                         </entry>
 133                     </row>
 134                     <row>
 135                         <entry><code>contains</code></entry>
 136                         <entry>Check if a string is contained of the other one</entry>
 137                         <entry>
 138                             <functionname>contains()</functionname>
 139                             <sbr/>
 140                             <functionname>icontains()</functionname>
 141                         </entry>
 142                     </row>
 143                     <row>
 144                         <entry><code>equals</code></entry>
 145                         <entry>Check if two strings are equal</entry>
 146                         <entry>
 147                             <functionname>equals()</functionname>
 148                             <sbr/>
 149                             <functionname>iequals()</functionname>
 150                         </entry>
 151                     </row>
 152                     <row>
 153                         <entry><code>lexicographical_compare</code></entry>
 154                         <entry>Check if a string is lexicographically less then another one</entry>
 155                         <entry>
 156                             <functionname>lexicographical_compare()</functionname>
 157                             <sbr/>
 158                             <functionname>ilexicographical_compare()</functionname>
 159                         </entry>
 160                     </row>
 161
 162                     <row>
 163                         <entry><code>all</code></entry>
 164                         <entry>Check if all elements of a string satisfy the given predicate</entry>
 165                         <entry>
 166                             <functionname>all()</functionname>
 167                         </entry>
 168                     </row>
 169                 </tbody>
 170             </tgroup>
 171         </table>
 172         <table>
 173             <title>Find algorithms</title>
 174             <tgroup cols="3" align="left">
 175                 <thead>
 176                     <row>
 177                         <entry>Algorithm name</entry>
 178                         <entry>Description</entry>
 179                         <entry>Functions</entry>
 180                     </row>
 181                 </thead>
 182                 <tbody>
 183                     <row>
 184                         <entry>find_first</entry>
 185                         <entry>Find the first occurrence of a string in the input</entry>
 186                         <entry>
 187                             <functionname>find_first()</functionname>
 188                             <sbr/>
 189                             <functionname>ifind_first()</functionname>
 190                         </entry>
 191                     </row>
 192                     <row>
 193                         <entry>find_last</entry>
 194                         <entry>Find the last occurrence of a string in the input</entry>
 195                         <entry>
 196                             <functionname>find_last()</functionname>
 197                             <sbr/>
 198                             <functionname>ifind_last()</functionname>
 199                         </entry>
 200                     </row>
 201                     <row>
 202                         <entry>find_nth</entry>
 203                         <entry>Find the nth (zero-indexed) occurrence of a string in the input</entry>
 204                         <entry>
 205                             <functionname>find_nth()</functionname>
 206                             <sbr/>
 207                             <functionname>ifind_nth()</functionname>
 208                         </entry>
 209                     </row>
 210                     <row>
 211                         <entry>find_head</entry>
 212                         <entry>Retrieve the head of a string</entry>
 213                         <entry>
 214                             <functionname>find_head()</functionname>
 215                         </entry>
 216                     </row>
 217                     <row>
 218                         <entry>find_tail</entry>
 219                         <entry>Retrieve the tail of a string</entry>
 220                         <entry>
 221                             <functionname>find_tail()</functionname>
 222                         </entry>
 223                     </row>
 224                     <row>
 225                         <entry>find_token</entry>
 226                         <entry>Find first matching token in the string</entry>
 227                         <entry>
 228                             <functionname>find_token()</functionname>
 229                         </entry>
 230                     </row>
 231                     <row>
 232                         <entry>find_regex</entry>
 233                         <entry>Use the regular expression to search the string</entry>
 234                         <entry>
 235                             <functionname>find_regex()</functionname>
 236                         </entry>
 237                     </row>
 238                     <row>
 239                         <entry>find</entry>
 240                         <entry>Generic find algorithm</entry>
 241                         <entry>
 242                             <functionname>find()</functionname>
 243                         </entry>
 244                     </row>
 245                 </tbody>
 246             </tgroup>
 247         </table>
 248         <table>
 249             <title>Erase/Replace</title>
 250             <tgroup cols="3" align="left">
 251                 <thead>
 252                     <row>
 253                         <entry>Algorithm name</entry>
 254                         <entry>Description</entry>
 255                         <entry>Functions</entry>
 256                     </row>
 257                 </thead>
 258                 <tbody>
 259                     <row>
 260                         <entry>replace/erase_first</entry>
 261                         <entry>Replace/Erase the first occurrence of a string in the input</entry>
 262                         <entry>
 263                             <functionname>replace_first()</functionname>
 264                             <sbr/>
 265                             <functionname>replace_first_copy()</functionname>
 266                             <sbr/>
 267                             <functionname>ireplace_first()</functionname>
 268                             <sbr/>
 269                             <functionname>ireplace_first_copy()</functionname>
 270                             <sbr/>
 271                             <functionname>erase_first()</functionname>
 272                             <sbr/>
 273                             <functionname>erase_first_copy()</functionname>
 274                             <sbr/>
 275                             <functionname>ierase_first()</functionname>
 276                             <sbr/>
 277                             <functionname>ierase_first_copy()</functionname>
 278                         </entry>
 279                     </row>
 280                     <row>
 281                         <entry>replace/erase_last</entry>
 282                         <entry>Replace/Erase the last occurrence of a string in the input</entry>
 283                         <entry>
 284                             <functionname>replace_last()</functionname>
 285                             <sbr/>
 286                             <functionname>replace_last_copy()</functionname>
 287                             <sbr/>
 288                             <functionname>ireplace_last()</functionname>
 289                             <sbr/>
 290                             <functionname>ireplace_last_copy()</functionname>
 291                             <sbr/>
 292                             <functionname>erase_last()</functionname>
 293                             <sbr/>
 294                             <functionname>erase_last_copy()</functionname>
 295                             <sbr/>
 296                             <functionname>ierase_last()</functionname>
 297                             <sbr/>
 298                             <functionname>ierase_last_copy()</functionname>
 299                         </entry>
 300                     </row>
 301                     <row>
 302                         <entry>replace/erase_nth</entry>
 303                         <entry>Replace/Erase the nth (zero-indexed) occurrence of a string in the input</entry>
 304                         <entry>
 305                             <functionname>replace_nth()</functionname>
 306                             <sbr/>
 307                             <functionname>replace_nth_copy()</functionname>
 308                             <sbr/>
 309                             <functionname>ireplace_nth()</functionname>
 310                             <sbr/>
 311                             <functionname>ireplace_nth_copy()</functionname>
 312                             <sbr/>
 313                             <functionname>erase_nth()</functionname>
 314                             <sbr/>
 315                             <functionname>erase_nth_copy()</functionname>
 316                             <sbr/>
 317                             <functionname>ierase_nth()</functionname>
 318                             <sbr/>
 319                             <functionname>ierase_nth_copy()</functionname>
 320                         </entry>
 321                     </row>
 322                     <row>
 323                         <entry>replace/erase_all</entry>
 324                         <entry>Replace/Erase the all occurrences of a string in the input</entry>
 325                         <entry>
 326                             <functionname>replace_all()</functionname>
 327                             <sbr/>
 328                             <functionname>replace_all_copy()</functionname>
 329                             <sbr/>
 330                             <functionname>ireplace_all()</functionname>
 331                             <sbr/>
 332                             <functionname>ireplace_all_copy()</functionname>
 333                             <sbr/>
 334                             <functionname>erase_all()</functionname>
 335                             <sbr/>
 336                             <functionname>erase_all_copy()</functionname>
 337                             <sbr/>
 338                             <functionname>ierase_all()</functionname>
 339                             <sbr/>
 340                             <functionname>ierase_all_copy()</functionname>
 341                         </entry>
 342                     </row>
 343                     <row>
 344                         <entry>replace/erase_head</entry>
 345                         <entry>Replace/Erase the head of the input</entry>
 346                         <entry>
 347                             <functionname>replace_head()</functionname>
 348                             <sbr/>
 349                             <functionname>replace_head_copy()</functionname>
 350                             <sbr/>
 351                             <functionname>erase_head()</functionname>
 352                             <sbr/>
 353                             <functionname>erase_head_copy()</functionname>
 354                             <sbr/>
 355                         </entry>
 356                     </row>
 357                     <row>
 358                         <entry>replace/erase_tail</entry>
 359                         <entry>Replace/Erase the tail of the input</entry>
 360                         <entry>
 361                             <functionname>replace_tail()</functionname>
 362                             <sbr/>
 363                             <functionname>replace_tail_copy()</functionname>
 364                             <sbr/>
 365                             <functionname>erase_tail()</functionname>
 366                             <sbr/>
 367                             <functionname>erase_tail_copy()</functionname>
 368                             <sbr/>
 369                         </entry>
 370                     </row>
 371                     <row>
 372                         <entry>replace/erase_regex</entry>
 373                         <entry>Replace/Erase a substring matching the given regular expression</entry>
 374                         <entry>
 375                             <functionname>replace_regex()</functionname>
 376                             <sbr/>
 377                             <functionname>replace_regex_copy()</functionname>
 378                             <sbr/>
 379                             <functionname>erase_regex()</functionname>
 380                             <sbr/>
 381                             <functionname>erase_regex_copy()</functionname>
 382                             <sbr/>
 383                         </entry>
 384                     </row>
 385                     <row>
 386                         <entry>replace/erase_regex_all</entry>
 387                         <entry>Replace/Erase all substrings matching the given regular expression</entry>
 388                         <entry>
 389                             <functionname>replace_all_regex()</functionname>
 390                             <sbr/>
 391                             <functionname>replace_all_regex_copy()</functionname>
 392                             <sbr/>
 393                             <functionname>erase_all_regex()</functionname>
 394                             <sbr/>
 395                             <functionname>erase_all_regex_copy()</functionname>
 396                             <sbr/>
 397                         </entry>
 398                     </row>
 399                     <row>
 400                         <entry>find_format</entry>
 401                         <entry>Generic replace algorithm</entry>
 402                         <entry>
 403                             <functionname>find_format()</functionname>
 404                             <sbr/>
 405                             <functionname>find_format_copy()</functionname>
 406                             <sbr/>
 407                             <functionname>find_format_all()</functionname>
 408                             <sbr/>
 409                             <functionname>find_format_all_copy()()</functionname>
 410                         </entry>
 411                     </row>
 412                 </tbody>
 413             </tgroup>
 414         </table>
 415         <table>
 416             <title>Split</title>
 417             <tgroup cols="3" align="left">
 418                 <thead>
 419                     <row>
 420                         <entry>Algorithm name</entry>
 421                         <entry>Description</entry>
 422                         <entry>Functions</entry>
 423                     </row>
 424                 </thead>
 425                 <tbody>
 426                     <row>
 427                         <entry>find_all</entry>
 428                         <entry>Find/Extract all matching substrings in the input</entry>
 429                         <entry>
 430                             <functionname>find_all()</functionname>
 431                             <sbr/>
 432                             <functionname>ifind_all()</functionname>
 433                             <sbr/>
 434                             <functionname>find_all_regex()</functionname>
 435                         </entry>
 436                     </row>
 437                     <row>
 438                         <entry>split</entry>
 439                         <entry>Split input into parts</entry>
 440                         <entry>
 441                             <functionname>split()</functionname>
 442                             <sbr/>
 443                             <functionname>split_regex()</functionname>
 444                         </entry>
 445                                         </row>
 446                                         <row>
 447                                                 <entry>iter_find</entry>
 448                                                 <entry>Iteratively apply the finder to the input to find all matching substrings</entry>
 449                                                 <entry>
 450                                                         <functionname>iter_find()</functionname>
 451                                                 </entry>
 452                                         </row>
 453                                         <row>
 454                                                 <entry>iter_split</entry>
 455                                                 <entry>Use the finder to find matching substrings in the input and use them as separators to split the input into parts</entry>
 456                                                 <entry>
 457                                                         <functionname>iter_split()</functionname>
 458                                                 </entry>
 459                                         </row>
 460                 </tbody>
 461             </tgroup>
 462         </table>
 463         <table>
 464             <title>Join</title>
 465             <tgroup cols="3" align="left">
 466                 <thead>
 467                     <row>
 468                         <entry>Algorithm name</entry>
 469                         <entry>Description</entry>
 470                         <entry>Functions</entry>
 471                     </row>
 472                 </thead>
 473                 <tbody>
 474                     <row>
 475                         <entry>join</entry>
 476                         <entry>Join all elements in a container into a single string</entry>
 477                         <entry>
 478                             <functionname>join</functionname>
 479                         </entry>
 480                     </row>
 481                         <row>
 482                         <entry>join_if</entry>
 483                         <entry>Join all elements in a container that satisfies the condition into a single string</entry>
 484                         <entry>
 485                             <functionname>join_if()</functionname>
 486                         </entry>
 487                    </row>
 488                 </tbody>
 489             </tgroup>
 490         </table>
 491     </section>
 492     <section>
 493         <title>Finders and Formatters</title>
 494
 495         <table>
 496             <title>Finders</title>
 497             <tgroup cols="3" align="left">
 498                 <thead>
 499                     <row>
 500                         <entry>Finder</entry>
 501                         <entry>Description</entry>
 502                         <entry>Generators</entry>
 503                     </row>
 504                 </thead>
 505                 <tbody>
 506                     <row>
 507                         <entry>first_finder</entry>
 508                         <entry>Search for the first match of the string in an input</entry>
 509                         <entry>
 510                             <functionname>first_finder()</functionname>
 511                         </entry>
 512                     </row>
 513                     <row>
 514                         <entry>last_finder</entry>
 515                         <entry>Search for the last match of the string in an input</entry>
 516                         <entry>
 517                             <functionname>last_finder()</functionname>
 518                         </entry>
 519                     </row>
 520                     <row>
 521                         <entry>nth_finder</entry>
 522                         <entry>Search for the nth (zero-indexed) match of the string in an input</entry>
 523                         <entry>
 524                             <functionname>nth_finder()</functionname>
 525                         </entry>
 526                     </row>
 527                     <row>
 528                         <entry>head_finder</entry>
 529                         <entry>Retrieve the head of an input</entry>
 530                         <entry>
 531                             <functionname>head_finder()</functionname>
 532                         </entry>
 533                     </row>
 534                     <row>
 535                         <entry>tail_finder</entry>
 536                         <entry>Retrieve the tail of an input</entry>
 537                         <entry>
 538                             <functionname>tail_finder()</functionname>
 539                         </entry>
 540                     </row>
 541                     <row>
 542                         <entry>token_finder</entry>
 543                         <entry>Search for a matching token in an input</entry>
 544                         <entry>
 545                             <functionname>token_finder()</functionname>
 546                         </entry>
 547                     </row>
 548                     <row>
 549                         <entry>range_finder</entry>
 550                         <entry>Do no search, always returns the given range</entry>
 551                         <entry>
 552                             <functionname>range_finder()</functionname>
 553                         </entry>
 554                     </row>
 555                     <row>
 556                         <entry>regex_finder</entry>
 557                         <entry>Search for a substring matching the given regex</entry>
 558                         <entry>
 559                             <functionname>regex_finder()</functionname>
 560                         </entry>
 561                     </row>
 562                 </tbody>
 563             </tgroup>
 564         </table>
 565
 566         <table>
 567             <title>Formatters</title>
 568             <tgroup cols="3" align="left">
 569                 <thead>
 570                     <row>
 571                         <entry>Formatter</entry>
 572                         <entry>Description</entry>
 573                         <entry>Generators</entry>
 574                     </row>
 575                 </thead>
 576                 <tbody>
 577                     <row>
 578                         <entry>const_formatter</entry>
 579                         <entry>Constant formatter. Always return the specified string</entry>
 580                         <entry>
 581                             <functionname>const_formatter()</functionname>
 582                         </entry>
 583                     </row>
 584                     <row>
 585                         <entry>identity_formatter</entry>
 586                         <entry>Identity formatter. Return unmodified input input</entry>
 587                         <entry>
 588                             <functionname>identity_formatter()</functionname>
 589                         </entry>
 590                     </row>
 591                     <row>
 592                         <entry>empty_formatter</entry>
 593                         <entry>Null formatter. Always return an empty string</entry>
 594                         <entry>
 595                             <functionname>empty_formatter()</functionname>
 596                         </entry>
 597                     </row>
 598                     <row>
 599                         <entry>regex_formatter</entry>
 600                         <entry>Regex formatter. Format regex match using the specification in the format string</entry>
 601                         <entry>
 602                             <functionname>regex_formatter()</functionname>
 603                         </entry>
 604                     </row>
 605                 </tbody>
 606             </tgroup>
 607         </table>
 608     </section>
 609     <section>
 610         <title>Iterators</title>
 611
 612         <table>
 613             <title>Find Iterators</title>
 614             <tgroup cols="3" align="left">
 615                 <thead>
 616                     <row>
 617                         <entry>Iterator name</entry>
 618                         <entry>Description</entry>
 619                         <entry>Iterator class</entry>
 620                     </row>
 621                 </thead>
 622                 <tbody>
 623                     <row>
 624                         <entry>find_iterator</entry>
 625                         <entry>Iterates through matching substrings in the input</entry>
 626                         <entry>
 627                             <classname>find_iterator</classname>
 628                         </entry>
 629                     </row>
 630                     <row>
 631                         <entry>split_iterator</entry>
 632                         <entry>Iterates through gaps between matching substrings in the input</entry>
 633                         <entry>
 634                             <classname>split_iterator</classname>
 635                         </entry>
 636                     </row>
 637                 </tbody>
 638             </tgroup>
 639         </table>
 640     </section>
 641
 642     <section>
 643         <title>Classification</title>
 644
 645         <table>
 646             <title>Predicates</title>
 647             <tgroup cols="3" align="left">
 648                 <thead>
 649                     <row>
 650                         <entry>Predicate name</entry>
 651                         <entry>Description</entry>
 652                         <entry>Generator</entry>
 653                     </row>
 654                 </thead>
 655                 <tbody>
 656                     <row>
 657                         <entry>is_classified</entry>
 658                         <entry>Generic <code>ctype</code> mask based classification</entry>
 659                         <entry>
 660                             <functionname>is_classified()</functionname>
 661                         </entry>
 662                     </row>
 663                     <row>
 664                         <entry>is_space</entry>
 665                         <entry>Recognize spaces</entry>
 666                         <entry>
 667                             <functionname>is_space()</functionname>
 668                         </entry>
 669                     </row>
 670                     <row>
 671                         <entry>is_alnum</entry>
 672                         <entry>Recognize alphanumeric characters</entry>
 673                         <entry>
 674                             <functionname>is_alnum()</functionname>
 675                         </entry>
 676                     </row>
 677                     <row>
 678                         <entry>is_alpha</entry>
 679                         <entry>Recognize letters</entry>
 680                         <entry>
 681                             <functionname>is_alpha()</functionname>
 682                         </entry>
 683                     </row>
 684                     <row>
 685                         <entry>is_cntrl</entry>
 686                         <entry>Recognize control characters</entry>
 687                         <entry>
 688                             <functionname>is_cntrl()</functionname>
 689                         </entry>
 690                     </row>
 691                     <row>
 692                         <entry>is_digit</entry>
 693                         <entry>Recognize decimal digits</entry>
 694                         <entry>
 695                             <functionname>is_digit()</functionname>
 696                         </entry>
 697                     </row>
 698                     <row>
 699                         <entry>is_graph</entry>
 700                         <entry>Recognize graphical characters</entry>
 701                         <entry>
 702                             <functionname>is_graph()</functionname>
 703                         </entry>
 704                     </row>
 705                     <row>
 706                         <entry>is_lower</entry>
 707                         <entry>Recognize lower case characters</entry>
 708                         <entry>
 709                             <functionname>is_lower()</functionname>
 710                         </entry>
 711                     </row>
 712                     <row>
 713                         <entry>is_print</entry>
 714                         <entry>Recognize printable characters</entry>
 715                         <entry>
 716                             <functionname>is_print()</functionname>
 717                         </entry>
 718                     </row>
 719                     <row>
 720                         <entry>is_punct</entry>
 721                         <entry>Recognize punctuation characters</entry>
 722                         <entry>
 723                             <functionname>is_punct()</functionname>
 724                         </entry>
 725                     </row>
 726                     <row>
 727                         <entry>is_upper</entry>
 728                         <entry>Recognize uppercase characters</entry>
 729                         <entry>
 730                             <functionname>is_upper()</functionname>
 731                         </entry>
 732                     </row>
 733                     <row>
 734                         <entry>is_xdigit</entry>
 735                         <entry>Recognize hexadecimal digits</entry>
 736                         <entry>
 737                             <functionname>is_xdigit()</functionname>
 738                         </entry>
 739                     </row>
 740                     <row>
 741                         <entry>is_any_of</entry>
 742                         <entry>Recognize any of a sequence of characters</entry>
 743                         <entry>
 744                             <functionname>is_any_of()</functionname>
 745                         </entry>
 746                     </row>
 747                     <row>
 748                         <entry>is_from_range</entry>
 749                         <entry>Recognize characters inside a min..max range</entry>
 750                         <entry>
 751                             <functionname>is_from_range()</functionname>
 752                         </entry>
 753                     </row>
 754                 </tbody>
 755             </tgroup>
 756         </table>
 757     </section>
 758 </section>