a68g-options.c

     
   1  //! @file a68g-options.c
   2  //! @author J. Marcel van der Veer
   3  
   4  //! @section Copyright
   5  //!
   6  //! This file is part of Algol68G - an Algol 68 compiler-interpreter.
   7  //! Copyright 2001-2024 J. Marcel van der Veer [algol68g@xs4all.nl].
   8  
   9  //! @section License
  10  //!
  11  //! This program is free software; you can redistribute it and/or modify it 
  12  //! under the terms of the GNU General Public License as published by the 
  13  //! Free Software Foundation; either version 3 of the License, or 
  14  //! (at your option) any later version.
  15  //!
  16  //! This program is distributed in the hope that it will be useful, but 
  17  //! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  18  //! or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 
  19  //! more details. You should have received a copy of the GNU General Public 
  20  //! License along with this program. If not, see [http://www.gnu.org/licenses/].
  21  
  22  //! @section Synopsis
  23  //!
  24  //! Algol 68 Genie options.
  25  
  26  #include "a68g.h"
  27  #include "a68g-prelude.h"
  28  #include "a68g-mp.h"
  29  #include "a68g-options.h"
  30  #include "a68g-parser.h"
  31  
  32  // This code options to Algol68G.
  33  // 
  34  // Option syntax does not follow GNU standards.
  35  // 
  36  // Options come from:
  37  //   [1] A rc file (normally .a68grc).
  38  //   [2] The A68G_OPTIONS environment variable overrules [1].
  39  //   [3] Command line options overrule [2].
  40  //   [4] Pragmat items overrule [3]. 
  41  
  42  //! @brief Set default core size.
  43  
  44  void default_mem_sizes (int n)
  45  {
  46  #define SET_SIZE(m, n) {\
  47    ABEND (OVER_2G (n), ERROR_OVER_2G, __func__);\
  48    (m) = (n);\
  49  }
  50  
  51    if (n < 0) {
  52      n = 1;
  53    }
  54    SET_SIZE (A68 (frame_stack_size), 12 * n * MEGABYTE);
  55    SET_SIZE (A68 (expr_stack_size), 4 * n * MEGABYTE);
  56    SET_SIZE (A68 (heap_size), 32 * n * MEGABYTE);
  57    SET_SIZE (A68 (handle_pool_size), 16 * n * MEGABYTE);
  58    SET_SIZE (A68 (storage_overhead), MIN_MEM_SIZE);
  59  #undef SET_SIZE
  60  }
  61  
  62  //! @brief Read options from the .rc file.
  63  
  64  void read_rc_options (void)
  65  {
  66    BUFFER name, new_name;
  67    BUFCLR (name);
  68    BUFCLR (new_name);
  69    ASSERT (a68_bufprt (name, SNPRINTF_SIZE, ".%src", A68 (a68_cmd_name)) >= 0);
  70    FILE *f = a68_fopen (name, "r", new_name);
  71    if (f != NO_FILE) {
  72      while (!feof (f)) {
  73        if (fgets (A68 (input_line), BUFFER_SIZE, f) != NO_TEXT) {
  74          if (A68 (input_line)[strlen (A68 (input_line)) - 1] == NEWLINE_CHAR) {
  75            A68 (input_line)[strlen (A68 (input_line)) - 1] = NULL_CHAR;
  76          }
  77          isolate_options (A68 (input_line), NO_LINE);
  78        }
  79      }
  80      ASSERT (fclose (f) == 0);
  81      (void) set_options (OPTION_LIST (&A68_JOB), A68_FALSE);
  82    } else {
  83      errno = 0;
  84    }
  85  }
  86  
  87  //! @brief Read options from A68G_OPTIONS.
  88  
  89  void read_env_options (void)
  90  {
  91    if (getenv ("A68G_OPTIONS") != NULL) {
  92      isolate_options (getenv ("A68G_OPTIONS"), NO_LINE);
  93      (void) set_options (OPTION_LIST (&A68_JOB), A68_FALSE);
  94      errno = 0;
  95    }
  96  }
  97  
  98  //! @brief Tokenise string 'p' that holds options.
  99  
 100  void isolate_options (char *p, LINE_T * line)
 101  {
 102    while (p != NO_TEXT && p[0] != NULL_CHAR) {
 103  // Skip white space etc.
 104      while ((p[0] == BLANK_CHAR || p[0] == TAB_CHAR || p[0] == ',' || p[0] == NEWLINE_CHAR) && p[0] != NULL_CHAR) {
 105        p++;
 106      }
 107  // ... then tokenise an item.
 108      if (p[0] != NULL_CHAR) {
 109        char *q;
 110  // Item can be "string". Note that these are not A68 strings.
 111        if (p[0] == QUOTE_CHAR || p[0] == '\'' || p[0] == '`') {
 112          char delim = p[0];
 113          p++;
 114  // 'q' points at first significant char in item.
 115          q = p;
 116          while (p[0] != delim && p[0] != NULL_CHAR) {
 117            p++;
 118          }
 119          if (p[0] != NULL_CHAR) {
 120            p[0] = NULL_CHAR;     // p[0] was delimiter
 121            p++;
 122          } else {
 123            scan_error (line, NO_TEXT, ERROR_UNTERMINATED_STRING);
 124          }
 125        } else {
 126  // Item is not a delimited string.
 127          q = p;
 128  // Tokenise symbol and gather it in the option list for later processing.
 129  // Skip '='s, we accept if someone writes -prec=60 -heap=8192
 130          if (*q == '=') {
 131            p++;
 132          } else {
 133  // Skip item 
 134            while (p[0] != BLANK_CHAR && p[0] != NULL_CHAR && p[0] != '=' && p[0] != ',' && p[0] != NEWLINE_CHAR) {
 135              p++;
 136            }
 137          }
 138          if (p[0] != NULL_CHAR) {
 139            p[0] = NULL_CHAR;
 140            p++;
 141          }
 142        }
 143  // 'q' points to first significant char in item, and 'p' points after item.
 144        add_option_list (&(OPTION_LIST (&A68_JOB)), q, line);
 145      }
 146    }
 147  }
 148  
 149  //! @brief Set default values for options.
 150  
 151  void default_options (MODULE_T * p)
 152  {
 153    OPTION_BACKTRACE (p) = A68_FALSE;
 154    OPTION_BRACKETS (p) = A68_FALSE;
 155    OPTION_CHECK_ONLY (p) = A68_FALSE;
 156    OPTION_CLOCK (p) = A68_FALSE;
 157    OPTION_COMPILE_CHECK (p) = A68_FALSE;
 158    OPTION_COMPILE (p) = A68_FALSE;
 159    OPTION_CROSS_REFERENCE (p) = A68_FALSE;
 160    OPTION_DEBUG (p) = A68_FALSE;
 161    OPTION_FOLD (p) = A68_FALSE;
 162    OPTION_INDENT (p) = 2;
 163    OPTION_KEEP (p) = A68_FALSE;
 164    OPTION_LICENSE (p) = A68_FALSE;
 165    OPTION_MOID_LISTING (p) = A68_FALSE;
 166    OPTION_NODEMASK (p) = (STATUS_MASK_T) (ASSERT_MASK | SOURCE_MASK);
 167    OPTION_NO_WARNINGS (p) = A68_FALSE;
 168    OPTION_OPT_LEVEL (p) = NO_OPTIMISE;
 169    OPTION_PORTCHECK (p) = A68_FALSE;
 170    OPTION_PRAGMAT_SEMA (p) = A68_TRUE;
 171    OPTION_PRETTY (p) = A68_FALSE;
 172    OPTION_QUIET (p) = A68_FALSE;
 173    OPTION_REDUCTIONS (p) = A68_FALSE;
 174    OPTION_REGRESSION_TEST (p) = A68_FALSE;
 175    OPTION_RERUN (p) = A68_FALSE;
 176    OPTION_RUN (p) = A68_FALSE;
 177    OPTION_RUN_SCRIPT (p) = A68_FALSE;
 178    OPTION_SOURCE_LISTING (p) = A68_FALSE;
 179    OPTION_STANDARD_PRELUDE_LISTING (p) = A68_FALSE;
 180    OPTION_STATISTICS_LISTING (p) = A68_FALSE;
 181    OPTION_STRICT (p) = A68_FALSE;
 182    OPTION_STROPPING (p) = UPPER_STROPPING;
 183    OPTION_TIME_LIMIT (p) = 0;
 184    OPTION_TRACE (p) = A68_FALSE;
 185    OPTION_TREE_LISTING (p) = A68_FALSE;
 186    OPTION_UNUSED (p) = A68_FALSE;
 187    OPTION_VERBOSE (p) = A68_FALSE;
 188    OPTION_VERSION (p) = A68_FALSE;
 189    set_long_mp_digits (0);
 190  }
 191  
 192  //! @brief Error handler for options.
 193  
 194  void option_error (LINE_T * l, char *option, char *info)
 195  {
 196    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "%s", option) >= 0);
 197    if (info != NO_TEXT) {
 198      ASSERT (a68_bufprt (A68 (edit_line), SNPRINTF_SIZE, "*error: %s option \"%s\"", info, A68 (output_line)) >= 0);
 199    } else {
 200      ASSERT (a68_bufprt (A68 (edit_line), SNPRINTF_SIZE, "*error: in option \"%s\"", A68 (output_line)) >= 0);
 201    }
 202    scan_error (l, NO_TEXT, A68 (edit_line));
 203  }
 204  
 205  //! @brief Strip minus preceeding a string.
 206  
 207  char *strip_sign (char *p)
 208  {
 209    while (p[0] == '-' || p[0] == '+') {
 210      p++;
 211    }
 212    return new_string (p, NO_TEXT);
 213  }
 214  
 215  //! @brief Add an option to the list, to be processed later.
 216  
 217  void add_option_list (OPTION_LIST_T ** l, char *str, LINE_T * line)
 218  {
 219    if (*l == NO_OPTION_LIST) {
 220      *l = (OPTION_LIST_T *) get_heap_space ((size_t) SIZE_ALIGNED (OPTION_LIST_T));
 221      SCAN (*l) = SOURCE_SCAN (&A68_JOB);
 222      STR (*l) = new_string (str, NO_TEXT);
 223      PROCESSED (*l) = A68_FALSE;
 224      LINE (*l) = line;
 225      NEXT (*l) = NO_OPTION_LIST;
 226    } else {
 227      add_option_list (&(NEXT (*l)), str, line);
 228    }
 229  }
 230  
 231  //! @brief Free an option list.
 232  
 233  void free_option_list (OPTION_LIST_T * l)
 234  {
 235    if (l != NO_OPTION_LIST) {
 236      free_option_list (NEXT (l));
 237      a68_free (STR (l));
 238      a68_free (l);
 239    }
 240  }
 241  
 242  //! @brief Initialise option handler.
 243  
 244  void init_options (void)
 245  {
 246    A68 (options) = (OPTIONS_T *) a68_alloc ((size_t) SIZE_ALIGNED (OPTIONS_T), __func__, __LINE__);
 247    OPTION_LIST (&A68_JOB) = NO_OPTION_LIST;
 248  }
 249  
 250  //! @brief Test equality of p and q, upper case letters in q are mandatory.
 251  
 252  static inline BOOL_T eq (char *p, char *q)
 253  {
 254  // Upper case letters in 'q' are mandatory, lower case must match.
 255    if (OPTION_PRAGMAT_SEMA (&A68_JOB)) {
 256      return match_string (p, q, '=');
 257    } else {
 258      return A68_FALSE;
 259    }
 260  }
 261  
 262  //! @brief Process echoes gathered in the option list.
 263  
 264  void prune_echoes (OPTION_LIST_T * i)
 265  {
 266    while (i != NO_OPTION_LIST) {
 267      if (SCAN (i) == SOURCE_SCAN (&A68_JOB)) {
 268        char *p = strip_sign (STR (i));
 269  // ECHO echoes a string.
 270        if (eq (p, "ECHO")) {
 271          {
 272            char *car = strchr (p, '=');
 273            if (car != NO_TEXT) {
 274              io_close_tty_line ();
 275              ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "%s", &car[1]) >= 0);
 276              WRITE (A68_STDOUT, A68 (output_line));
 277            } else {
 278              FORWARD (i);
 279              if (i != NO_OPTION_LIST) {
 280                if (strcmp (STR (i), "=") == 0) {
 281                  FORWARD (i);
 282                }
 283                if (i != NO_OPTION_LIST) {
 284                  io_close_tty_line ();
 285                  ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "%s", STR (i)) >= 0);
 286                  WRITE (A68_STDOUT, A68 (output_line));
 287                }
 288              }
 289            }
 290          }
 291        }
 292        a68_free (p);
 293      }
 294      if (i != NO_OPTION_LIST) {
 295        FORWARD (i);
 296      }
 297    }
 298  }
 299  
 300  //! @brief Translate integral option argument.
 301  
 302  int fetch_integral (char *p, OPTION_LIST_T ** i, BOOL_T * error)
 303  {
 304    LINE_T *start_l = LINE (*i);
 305    char *start_c = STR (*i);
 306    char *car = NO_TEXT, *num = NO_TEXT;
 307    *error = A68_FALSE;
 308  // Fetch argument.
 309    car = strchr (p, '=');
 310    if (car == NO_TEXT) {
 311      FORWARD (*i);
 312      *error = (BOOL_T) (*i == NO_OPTION_LIST);
 313      if (!*error && strcmp (STR (*i), "=") == 0) {
 314        FORWARD (*i);
 315        *error = (BOOL_T) (*i == NO_OPTION_LIST);
 316      }
 317      if (!*error) {
 318        num = STR (*i);
 319      }
 320    } else {
 321      num = &car[1];
 322      *error = (BOOL_T) (num[0] == NULL_CHAR);
 323    }
 324  // Translate argument into integer.
 325    if (*error) {
 326      option_error (start_l, start_c, "integer value required by");
 327      return 0;
 328    } else {
 329      char *suffix;
 330      errno = 0;
 331      INT_T k = (int) strtol (num, &suffix, 0); // Accept also octal and hex
 332      INT_T mult = 1;
 333      *error = (BOOL_T) (suffix == num);
 334      if (errno != 0 || *error) {
 335        option_error (start_l, start_c, "conversion error in");
 336        *error = A68_TRUE;
 337      } else if (k < 0) {
 338        option_error (start_l, start_c, "negative value in");
 339        *error = A68_TRUE;
 340      } else {
 341  // Accept suffix multipliers: 32k, 64M, 1G.
 342        if (suffix != NO_TEXT) {
 343          switch (suffix[0]) {
 344          case NULL_CHAR: {
 345              mult = 1;
 346              break;
 347            }
 348          case 'k':
 349          case 'K': {
 350              mult = KILOBYTE;
 351              break;
 352            }
 353          case 'm':
 354          case 'M': {
 355              mult = MEGABYTE;
 356              break;
 357            }
 358          case 'g':
 359          case 'G': {
 360              mult = GIGABYTE;
 361              break;
 362            }
 363          default: {
 364              option_error (start_l, start_c, "unknown suffix in");
 365              *error = A68_TRUE;
 366              break;
 367            }
 368          }
 369          if (suffix[0] != NULL_CHAR && suffix[1] != NULL_CHAR) {
 370            option_error (start_l, start_c, "unknown suffix in");
 371            *error = A68_TRUE;
 372          }
 373        }
 374      }
 375      if (OVER_2G ((REAL_T) k * (REAL_T) mult)) {
 376        errno = ERANGE;
 377        option_error (start_l, start_c, ERROR_OVER_2G);
 378      }
 379      return k * mult;
 380    }
 381  }
 382  
 383  //! @brief Dump technical information.
 384  
 385  static void tech_stuff (void)
 386  {
 387    state_version (A68_STDOUT);
 388    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_REF) = %u", (unt) sizeof (A68_REF)) >= 0);
 389    WRITELN (A68_STDOUT, A68 (output_line));
 390    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_PROCEDURE) = %u", (unt) sizeof (A68_PROCEDURE)) >= 0);
 391    WRITELN (A68_STDOUT, A68 (output_line));
 392  #if (A68_LEVEL >= 3)
 393    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (DOUBLE_T) = %u", (unt) sizeof (DOUBLE_T)) >= 0);
 394    WRITELN (A68_STDOUT, A68 (output_line));
 395    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (DOUBLE_NUM_T) = %u", (unt) sizeof (DOUBLE_NUM_T)) >= 0);
 396    WRITELN (A68_STDOUT, A68 (output_line));
 397  #endif
 398    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_INT) = %u", (unt) sizeof (A68_INT)) >= 0);
 399    WRITELN (A68_STDOUT, A68 (output_line));
 400    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_REAL) = %u", (unt) sizeof (A68_REAL)) >= 0);
 401    WRITELN (A68_STDOUT, A68 (output_line));
 402    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_BOOL) = %u", (unt) sizeof (A68_BOOL)) >= 0);
 403    WRITELN (A68_STDOUT, A68 (output_line));
 404    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_CHAR) = %u", (unt) sizeof (A68_CHAR)) >= 0);
 405    WRITELN (A68_STDOUT, A68 (output_line));
 406    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_BITS) = %u", (unt) sizeof (A68_BITS)) >= 0);
 407    WRITELN (A68_STDOUT, A68 (output_line));
 408  #if (A68_LEVEL >= 3)
 409    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_LONG_REAL) = %u", (unt) sizeof (A68_LONG_REAL)) >= 0);
 410    WRITELN (A68_STDOUT, A68 (output_line));
 411  #else
 412    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_LONG_REAL) = %u", (unt) size_mp ()) >= 0);
 413    WRITELN (A68_STDOUT, A68 (output_line));
 414  #endif
 415    ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "sizeof (A68_LONG_LONG_REAL) = %u", (unt) size_long_mp ()) >= 0);
 416    WRITELN (A68_STDOUT, A68 (output_line));
 417    WRITELN (A68_STDOUT, "");
 418    exit (EXIT_SUCCESS);
 419  }
 420  
 421  //! @brief Process options gathered in the option list.
 422  
 423  BOOL_T need_library (OPTION_LIST_T *i)
 424  {
 425    char *q = strip_sign (STR (i));
 426    if (eq (q, "compiler")) {
 427  #if defined (BUILD_A68_COMPILER)
 428      return (A68_TRUE);
 429  #else
 430      io_close_tty_line ();
 431      WRITE (A68_STDERR, "plugin compiler required - exiting graciously");
 432      a68_exit (EXIT_SUCCESS);
 433  #endif
 434    }
 435    if (eq (q, "curl")) {
 436  #if defined (HAVE_CURL)
 437      return (A68_TRUE);
 438  #else
 439      io_close_tty_line ();
 440      WRITE (A68_STDERR, "curl library required - exiting graciously");
 441      a68_exit (EXIT_SUCCESS);
 442  #endif
 443    }
 444    if (eq (q, "curses")) {
 445  #if defined (HAVE_CURSES)
 446      return (A68_TRUE);
 447  #else
 448      io_close_tty_line ();
 449      WRITE (A68_STDERR, "curses required - exiting graciously");
 450      a68_exit (EXIT_SUCCESS);
 451  #endif
 452    }
 453    if (eq (q, "gsl")) {
 454  #if defined (HAVE_GSL)
 455      return (A68_TRUE);
 456  #else
 457      io_close_tty_line ();
 458      WRITE (A68_STDERR, "GNU Scientific Library required - exiting graciously");
 459      a68_exit (EXIT_SUCCESS);
 460  #endif
 461    }
 462    if (eq (q, "http")) {
 463  #if !defined (HAVE_CURL)
 464      io_close_tty_line ();
 465      WRITELN (A68_STDERR, "curl required - exiting graciously");
 466      a68_exit (EXIT_SUCCESS);
 467  #else
 468      return (A68_TRUE);
 469  #endif
 470    }
 471    if (eq (q, "ieee")) {
 472  #if defined (HAVE_IEEE_754)
 473      return (A68_TRUE);
 474  #else
 475      io_close_tty_line ();
 476      WRITE (A68_STDERR, "IEEE required - exiting graciously");
 477      a68_exit (EXIT_SUCCESS);
 478  #endif
 479    }
 480    if (eq (q, "linux")) {
 481  #if defined (BUILD_LINUX)
 482      return (A68_TRUE);
 483  #else
 484      io_close_tty_line ();
 485      WRITE (A68_STDERR, "linux required - exiting graciously");
 486      a68_exit (EXIT_SUCCESS);
 487  #endif
 488    }
 489    if (eq (q, "mathlib")) {
 490  #if defined (HAVE_MATHLIB)
 491      return (A68_TRUE);
 492  #else
 493      io_close_tty_line ();
 494      WRITE (A68_STDERR, "R mathlib required - exiting graciously");
 495      a68_exit (EXIT_SUCCESS);
 496  #endif
 497    }
 498    if (eq (q, "mpfr")) {
 499  #if defined (HAVE_GNU_MPFR)
 500      return (A68_TRUE);
 501  #else
 502      io_close_tty_line ();
 503      WRITE (A68_STDERR, "GNU MPFR required - exiting graciously");
 504      a68_exit (EXIT_SUCCESS);
 505  #endif
 506    }
 507    if (eq (q, "plotutils")) {
 508  #if defined (HAVE_GNU_PLOTUTILS)
 509      return (A68_TRUE);
 510  #else
 511      io_close_tty_line ();
 512      WRITE (A68_STDERR, "GNU plotutils required - exiting graciously");
 513      a68_exit (EXIT_SUCCESS);
 514  #endif
 515    }
 516    if (eq (q, "postgresql")) {
 517  #if defined (HAVE_POSTGRESQL)
 518      return (A68_TRUE);
 519  #else
 520      io_close_tty_line ();
 521      WRITE (A68_STDERR, "postgresql required - exiting graciously");
 522      a68_exit (EXIT_SUCCESS);
 523  #endif
 524    }
 525    if (eq (q, "threads")) {
 526  #if defined (BUILD_PARALLEL_CLAUSE)
 527      return (A68_TRUE);
 528  #else
 529      io_close_tty_line ();
 530      WRITE (A68_STDERR, "POSIX threads required - exiting graciously");
 531      a68_exit (EXIT_SUCCESS);
 532  #endif
 533    }
 534    return A68_FALSE;
 535  }
 536  
 537  //! @brief Process options gathered in the option list.
 538  
 539  BOOL_T set_options (OPTION_LIST_T *i, BOOL_T cmd_line)
 540  {
 541    BOOL_T siga = A68_TRUE, name_set = A68_FALSE, skip = A68_FALSE;
 542    OPTION_LIST_T *j = i;
 543    errno = 0;
 544    while (i != NO_OPTION_LIST && siga) {
 545  // Once SCRIPT is processed we skip options on the command line.
 546      if (cmd_line && skip) {
 547        FORWARD (i);
 548      } else {
 549        LINE_T *start_l = LINE (i);
 550        char *start_c = STR (i);
 551        int n = (int) strlen (STR (i));
 552  // Allow for spaces ending in # to have A68 comment syntax with '#!'.
 553        while (n > 0 && (IS_SPACE ((STR (i))[n - 1]) || (STR (i))[n - 1] == '#')) {
 554          (STR (i))[--n] = NULL_CHAR;
 555        }
 556        if (!(PROCESSED (i))) {
 557  // Accept UNIX '-option [=] value'.
 558          BOOL_T minus_sign = (BOOL_T) ((STR (i))[0] == '-');
 559          char *p = strip_sign (STR (i));
 560          char *stale = p;
 561          if (!minus_sign && eq (p, "#")) {
 562            ;
 563          } else if (!minus_sign && cmd_line) {
 564  // Item without '-'s is a filename.
 565            if (!name_set) {
 566              FILE_INITIAL_NAME (&A68_JOB) = new_string (p, NO_TEXT);
 567              name_set = A68_TRUE;
 568            } else {
 569              option_error (NO_LINE, start_c, "multiple source file names at");
 570            }
 571          } else if (eq (p, "INCLUDE")) {
 572  // Preprocessor items stop option processing.
 573            siga = A68_FALSE;
 574          } else if (eq (p, "READ")) {
 575            siga = A68_FALSE;
 576          } else if (eq (p, "PREPROCESSOR")) {
 577            siga = A68_FALSE;
 578          } else if (eq (p, "NOPREPROCESSOR")) {
 579            siga = A68_FALSE;
 580          } else if (eq (p, "TECHnicalities")) {
 581  // TECH prints out some tech stuff.
 582            tech_stuff ();
 583          }
 584  // EXIT stops option processing.
 585          else if (eq (p, "EXIT")) {
 586            siga = A68_FALSE;
 587          }
 588  // Empty item (from specifying '-' or '--') stops option processing.
 589          else if (eq (p, "")) {
 590            siga = A68_FALSE;
 591          }
 592  // FILE accepts its argument as filename.
 593          else if (eq (p, "File") && cmd_line) {
 594            FORWARD (i);
 595            if (i != NO_OPTION_LIST && strcmp (STR (i), "=") == 0) {
 596              FORWARD (i);
 597            }
 598            if (i != NO_OPTION_LIST) {
 599              if (!name_set) {
 600                FILE_INITIAL_NAME (&A68_JOB) = new_string (STR (i), NO_TEXT);
 601                name_set = A68_TRUE;
 602              } else {
 603                option_error (start_l, start_c, "multiple source file names at");
 604              }
 605            } else {
 606              option_error (start_l, start_c, "missing argument in");
 607            }
 608          }
 609  // NEED or LIBrary require the argument as environ.
 610          else if (eq (p, "NEED") || eq (p, "LIBrary")) {
 611            FORWARD (i);
 612            if (i == NO_OPTION_LIST) {
 613              option_error (start_l, start_c, "missing argument in");
 614            } else {
 615              OPTION_LIST_T *save = i; BOOL_T good = A68_FALSE;
 616              do {
 617                good = need_library (i);
 618                if (good) {
 619                  save = i;
 620                  FORWARD (i);
 621                } else {
 622                  i = save;
 623                }
 624              } while (good && i != NO_OPTION_LIST);
 625            }
 626          }
 627  // SCRIPT takes next argument as filename.
 628  // Further options on the command line are not processed, but stored.
 629          else if (eq (p, "Script") && cmd_line) {
 630            FORWARD (i);
 631            if (i != NO_OPTION_LIST) {
 632              if (!name_set) {
 633                FILE_INITIAL_NAME (&A68_JOB) = new_string (STR (i), NO_TEXT);
 634                name_set = A68_TRUE;
 635              } else {
 636                option_error (start_l, start_c, "multiple source file names at");
 637              }
 638            } else {
 639              option_error (start_l, start_c, "missing argument in");
 640            }
 641            skip = A68_TRUE;
 642          }
 643  // VERIFY checks that argument is current a68g version number.
 644          else if (eq (p, "VERIFY")) {
 645            FORWARD (i);
 646            if (i != NO_OPTION_LIST && strcmp (STR (i), "=") == 0) {
 647              FORWARD (i);
 648            }
 649            if (i != NO_OPTION_LIST) {
 650              ASSERT (a68_bufprt (A68 (output_line), SNPRINTF_SIZE, "%s verification \"%s\" does not match script verification \"%s\"", A68 (a68_cmd_name), PACKAGE_STRING, STR (i)) >= 0);
 651              ABEND (strcmp (PACKAGE_STRING, STR (i)) != 0, new_string (A68 (output_line), __func__), "outdated script");
 652            } else {
 653              option_error (start_l, start_c, "missing argument in");
 654            }
 655          }
 656  // HELP gives online help.
 657          else if ((eq (p, "APropos") || eq (p, "Help") || eq (p, "INfo")) && cmd_line) {
 658            FORWARD (i);
 659            if (i != NO_OPTION_LIST && strcmp (STR (i), "=") == 0) {
 660              FORWARD (i);
 661            }
 662            if (i != NO_OPTION_LIST) {
 663              apropos (A68_STDOUT, NO_TEXT, STR (i));
 664            } else {
 665              apropos (A68_STDOUT, NO_TEXT, "options");
 666            }
 667            a68_exit (EXIT_SUCCESS);
 668          }
 669  // ECHO is treated later.
 670          else if (eq (p, "ECHO")) {
 671            if (strchr (p, '=') == NO_TEXT) {
 672              FORWARD (i);
 673              if (i != NO_OPTION_LIST) {
 674                if (strcmp (STR (i), "=") == 0) {
 675                  FORWARD (i);
 676                }
 677              }
 678            }
 679          }
 680  // EXECUTE and PRINT execute their argument as Algol 68 text.
 681          else if (eq (p, "Execute") || eq (p, "X") || eq (p, "Print")) {
 682            if (cmd_line == A68_FALSE) {
 683              option_error (start_l, start_c, "command-line-only");
 684            } else if ((FORWARD (i)) != NO_OPTION_LIST) {
 685              BOOL_T error = A68_FALSE;
 686              if (strcmp (STR (i), "=") == 0) {
 687                error = (BOOL_T) ((FORWARD (i)) == NO_OPTION_LIST);
 688              }
 689              if (!error) {
 690                BUFFER name, new_name;
 691                int s_errno = errno;
 692                a68_bufcpy (name, HIDDEN_TEMP_FILE_NAME, BUFFER_SIZE);
 693                a68_bufcat (name, ".a68", BUFFER_SIZE);
 694                FILE *f = a68_fopen (name, "w", new_name);
 695                ABEND (f == NO_FILE, ERROR_ACTION, __func__);
 696                errno = s_errno;
 697                if (eq (p, "Execute") || eq (p, "X")) {
 698                  fprintf (f, "(%s)\n", STR (i));
 699                } else {
 700                  fprintf (f, "(print (((%s), new line)))\n", STR (i));
 701                }
 702                ASSERT (fclose (f) == 0);
 703                FILE_INITIAL_NAME (&A68_JOB) = new_string (new_name, NO_TEXT);
 704              } else {
 705                option_error (start_l, start_c, "unit required by");
 706              }
 707            } else {
 708              option_error (start_l, start_c, "missing argument in");
 709            }
 710          }
 711  // STORAGE, HEAP, HANDLES, STACK, FRAME and OVERHEAD set core allocation.
 712          else if (eq (p, "STOrage")) {
 713            BOOL_T error = A68_FALSE;
 714            int k = fetch_integral (p, &i, &error);
 715  // Adjust size.
 716            if (error || errno > 0) {
 717              option_error (start_l, start_c, "conversion error in");
 718            } else if (k > 0) {
 719              default_mem_sizes (k);
 720            }
 721          } else if (eq (p, "HEAP") || eq (p, "HANDLES") || eq (p, "STACK") || eq (p, "FRAME") || eq (p, "OVERHEAD")) {
 722            BOOL_T error = A68_FALSE;
 723            int k = fetch_integral (p, &i, &error);
 724  // Adjust size.
 725            if (error || errno > 0) {
 726              option_error (start_l, start_c, "conversion error in");
 727            } else if (k > 0) {
 728              if (k < MIN_MEM_SIZE) {
 729                option_error (start_l, start_c, "value less than minimum in");
 730                k = MIN_MEM_SIZE;
 731              }
 732              if (eq (p, "HEAP")) {
 733                A68 (heap_size) = k;
 734              } else if (eq (p, "HANDLES")) {
 735                A68 (handle_pool_size) = k;
 736              } else if (eq (p, "STACK")) {
 737                A68 (expr_stack_size) = k;
 738              } else if (eq (p, "FRAME")) {
 739                A68 (frame_stack_size) = k;
 740              } else if (eq (p, "OVERHEAD")) {
 741                A68 (storage_overhead) = k;
 742              }
 743            }
 744          }
 745  // COMPILE and NOCOMPILE switch on/off compilation.
 746          else if (eq (p, "Compile")) {
 747  #if defined (BUILD_LINUX) || defined (BUILD_BSD)
 748            OPTION_COMPILE (&A68_JOB) = A68_TRUE;
 749            OPTION_COMPILE_CHECK (&A68_JOB) = A68_TRUE;
 750            if (OPTION_OPT_LEVEL (&A68_JOB) < OPTIMISE_1) {
 751              OPTION_OPT_LEVEL (&A68_JOB) = OPTIMISE_1;
 752            }
 753            OPTION_RUN_SCRIPT (&A68_JOB) = A68_FALSE;
 754  #else
 755            option_error (start_l, start_c, "linux-only option");
 756  #endif
 757          } else if (eq (p, "NOCompile") || eq (p, "NO-Compile")) {
 758            OPTION_COMPILE (&A68_JOB) = A68_FALSE;
 759            OPTION_RUN_SCRIPT (&A68_JOB) = A68_FALSE;
 760          }
 761  // OPTIMISE and NOOPTIMISE switch on/off optimisation.
 762          else if (eq (p, "NOOptimize") || eq (p, "NO-Optimize")) {
 763            OPTION_OPT_LEVEL (&A68_JOB) = NO_OPTIMISE;
 764          } else if (eq (p, "O0")) {
 765            OPTION_OPT_LEVEL (&A68_JOB) = NO_OPTIMISE;
 766          } else if (eq (p, "OG")) {
 767            OPTION_COMPILE_CHECK (&A68_JOB) = A68_TRUE;
 768            OPTION_OPT_LEVEL (&A68_JOB) = OPTIMISE_0;
 769          } else if (eq (p, "OPTimise") || eq (p, "OPTimize")) {
 770            OPTION_COMPILE_CHECK (&A68_JOB) = A68_TRUE;
 771            OPTION_OPT_LEVEL (&A68_JOB) = OPTIMISE_1;
 772          } else if (eq (p, "O") || eq (p, "O1")) {
 773            OPTION_COMPILE_CHECK (&A68_JOB) = A68_TRUE;
 774            OPTION_OPT_LEVEL (&A68_JOB) = OPTIMISE_1;
 775          } else if (eq (p, "O2")) {
 776            OPTION_COMPILE_CHECK (&A68_JOB) = A68_FALSE;
 777            OPTION_OPT_LEVEL (&A68_JOB) = OPTIMISE_2;
 778          } else if (eq (p, "O3")) {
 779            OPTION_COMPILE_CHECK (&A68_JOB) = A68_FALSE;
 780            OPTION_OPT_LEVEL (&A68_JOB) = OPTIMISE_3;
 781          } else if (eq (p, "Ofast")) {
 782            OPTION_COMPILE_CHECK (&A68_JOB) = A68_FALSE;
 783            OPTION_OPT_LEVEL (&A68_JOB) = OPTIMISE_FAST;
 784          }
 785  // ERROR-CHECK generates (some) runtime checks for O2, O3, Ofast.
 786          else if (eq (p, "ERRor-check")) {
 787            OPTION_COMPILE_CHECK (&A68_JOB) = A68_TRUE;
 788          }
 789  // RUN-SCRIPT runs a compiled .sh script.
 790          else if (eq (p, "RUN-SCRIPT")) {
 791  #if defined (BUILD_LINUX) || defined (BUILD_BSD)
 792            FORWARD (i);
 793            if (i != NO_OPTION_LIST) {
 794              if (!name_set) {
 795                FILE_INITIAL_NAME (&A68_JOB) = new_string (STR (i), NO_TEXT);
 796                name_set = A68_TRUE;
 797              } else {
 798                option_error (start_l, start_c, "multiple source file names at");
 799              }
 800            } else {
 801              option_error (start_l, start_c, "missing argument in");
 802            }
 803            skip = A68_TRUE;
 804            OPTION_RUN_SCRIPT (&A68_JOB) = A68_TRUE;
 805            OPTION_NO_WARNINGS (&A68_JOB) = A68_TRUE;
 806            OPTION_COMPILE (&A68_JOB) = A68_FALSE;
 807  #else
 808            option_error (start_l, start_c, "linux-only option");
 809  #endif
 810          }
 811  // RUN-QUOTE-SCRIPT runs a compiled .sh script.
 812          else if (eq (p, "RUN-QUOTE-SCRIPT")) {
 813  #if defined (BUILD_LINUX) || defined (BUILD_BSD)
 814            FORWARD (i);
 815            if (i != NO_OPTION_LIST) {
 816              if (!name_set) {
 817                FILE_INITIAL_NAME (&A68_JOB) = new_string (STR (i), NO_TEXT);
 818                name_set = A68_TRUE;
 819              } else {
 820                option_error (start_l, start_c, "multiple source file names at");
 821              }
 822            } else {
 823              option_error (start_l, start_c, "missing argument in");
 824            }
 825            skip = A68_TRUE;
 826            OPTION_RUN_SCRIPT (&A68_JOB) = A68_TRUE;
 827            OPTION_STROPPING (&A68_JOB) = QUOTE_STROPPING;
 828            OPTION_COMPILE (&A68_JOB) = A68_FALSE;
 829  #else
 830            option_error (start_l, start_c, "linux-only option");
 831  #endif
 832          }
 833  // RERUN re-uses an existing .so file.
 834          else if (eq (p, "RERUN")) {
 835            OPTION_COMPILE (&A68_JOB) = A68_FALSE;
 836            OPTION_RERUN (&A68_JOB) = A68_TRUE;
 837            if (OPTION_OPT_LEVEL (&A68_JOB) < OPTIMISE_1) {
 838              OPTION_OPT_LEVEL (&A68_JOB) = OPTIMISE_1;
 839            }
 840          }
 841  // KEEP and NOKEEP switch off/on object file deletion.
 842          else if (eq (p, "KEEP")) {
 843            OPTION_KEEP (&A68_JOB) = A68_TRUE;
 844          } else if (eq (p, "NOKEEP")) {
 845            OPTION_KEEP (&A68_JOB) = A68_FALSE;
 846          } else if (eq (p, "NO-KEEP")) {
 847            OPTION_KEEP (&A68_JOB) = A68_FALSE;
 848          }
 849  // BRACKETS extends Algol 68 syntax for brackets.
 850          else if (eq (p, "BRackets")) {
 851            OPTION_BRACKETS (&A68_JOB) = A68_TRUE;
 852          }
 853  // PRETTY and INDENT perform basic pretty printing.
 854  // This is meant for synthetic code.
 855          else if (eq (p, "PRETty-print")) {
 856            OPTION_PRETTY (&A68_JOB) = A68_TRUE;
 857            OPTION_CHECK_ONLY (&A68_JOB) = A68_TRUE;
 858          } else if (eq (p, "INDENT")) {
 859            OPTION_PRETTY (&A68_JOB) = A68_TRUE;
 860            OPTION_CHECK_ONLY (&A68_JOB) = A68_TRUE;
 861          }
 862  // FOLD performs constant folding in basic lay-out formatting..
 863          else if (eq (p, "FOLD")) {
 864            OPTION_INDENT (&A68_JOB) = A68_TRUE;
 865            OPTION_FOLD (&A68_JOB) = A68_TRUE;
 866            OPTION_CHECK_ONLY (&A68_JOB) = A68_TRUE;
 867          }
 868  // REDUCTIONS gives parser reductions.
 869          else if (eq (p, "REDuctions")) {
 870            OPTION_REDUCTIONS (&A68_JOB) = A68_TRUE;
 871          }
 872  // ALGOL60STROPPING sets stropping to quote stropping.
 873          else if (eq (p, "ALGOL60stropping")) {
 874            OPTION_STROPPING (&A68_JOB) = QUOTE_STROPPING;
 875          } else if (eq (p, "ALGOL60-stropping")) {
 876            OPTION_STROPPING (&A68_JOB) = QUOTE_STROPPING;
 877          }
 878  // QUOTESTROPPING sets stropping to quote stropping.
 879          else if (eq (p, "QUOTEstropping")) {
 880            OPTION_STROPPING (&A68_JOB) = QUOTE_STROPPING;
 881          } else if (eq (p, "QUOTE-stropping")) {
 882            OPTION_STROPPING (&A68_JOB) = QUOTE_STROPPING;
 883          }
 884  // UPPERSTROPPING sets stropping to upper stropping, which is nowadays the expected default.
 885          else if (eq (p, "UPPERstropping")) {
 886            OPTION_STROPPING (&A68_JOB) = UPPER_STROPPING;
 887          } else if (eq (p, "UPPER-stropping")) {
 888            OPTION_STROPPING (&A68_JOB) = UPPER_STROPPING;
 889          }
 890  // CHECK and NORUN just check for syntax.
 891          else if (eq (p, "CHeck") || eq (p, "NORun") || eq (p, "NO-Run")) {
 892            OPTION_CHECK_ONLY (&A68_JOB) = A68_TRUE;
 893          }
 894  // CLOCK times program execution.
 895          else if (eq (p, "CLock")) {
 896            OPTION_CLOCK (&A68_JOB) = A68_TRUE;
 897          }
 898  // RUN overrides NORUN.
 899          else if (eq (p, "RUN")) {
 900            OPTION_RUN (&A68_JOB) = A68_TRUE;
 901          }
 902  // MONITOR or DEBUG invokes the debugger at runtime errors.
 903          else if (eq (p, "MONitor") || eq (p, "DEBUG")) {
 904            OPTION_DEBUG (&A68_JOB) = A68_TRUE;
 905          }
 906  // REGRESSION is an option that sets preferences when running the test suite - undocumented option.
 907          else if (eq (p, "REGRESSION")) {
 908            OPTION_NO_WARNINGS (&A68_JOB) = A68_FALSE;
 909            OPTION_PORTCHECK (&A68_JOB) = A68_TRUE;
 910            OPTION_REGRESSION_TEST (&A68_JOB) = A68_TRUE;
 911            OPTION_TIME_LIMIT (&A68_JOB) = 300;
 912            OPTION_KEEP (&A68_JOB) = A68_TRUE;
 913            A68 (term_width) = MAX_TERM_WIDTH;
 914          }
 915  // LICense states the license
 916          else if (eq (p, "LICense")) {
 917            OPTION_LICENSE (&A68_JOB) = A68_TRUE;
 918          }
 919  // NOWARNINGS switches unsuppressible warnings off.
 920          else if (eq (p, "NOWarnings")) {
 921            OPTION_NO_WARNINGS (&A68_JOB) = A68_TRUE;
 922          } else if (eq (p, "NO-Warnings")) {
 923            OPTION_NO_WARNINGS (&A68_JOB) = A68_TRUE;
 924          }
 925  // QUIET switches all warnings off.
 926          else if (eq (p, "Quiet")) {
 927            OPTION_QUIET (&A68_JOB) = A68_TRUE;
 928          }
 929  // WARNINGS switches warnings on.
 930          else if (eq (p, "Warnings")) {
 931            OPTION_NO_WARNINGS (&A68_JOB) = A68_FALSE;
 932          }
 933  // NOPORTCHECK switches portcheck off.
 934          else if (eq (p, "NOPORTcheck")) {
 935            OPTION_PORTCHECK (&A68_JOB) = A68_FALSE;
 936          } else if (eq (p, "NO-PORTcheck")) {
 937            OPTION_PORTCHECK (&A68_JOB) = A68_FALSE;
 938          }
 939  // PORTCHECK switches portcheck on.
 940          else if (eq (p, "PORTcheck")) {
 941            OPTION_PORTCHECK (&A68_JOB) = A68_TRUE;
 942          }
 943  // PEDANTIC switches portcheck and warnings on.
 944          else if (eq (p, "PEDANTIC")) {
 945            OPTION_PORTCHECK (&A68_JOB) = A68_TRUE;
 946            OPTION_NO_WARNINGS (&A68_JOB) = A68_FALSE;
 947          }
 948  // PRAGMATS and NOPRAGMATS switch on/off pragmat processing.
 949          else if (eq (p, "PRagmats")) {
 950            OPTION_PRAGMAT_SEMA (&A68_JOB) = A68_TRUE;
 951          } else if (eq (p, "NOPRagmats")) {
 952            OPTION_PRAGMAT_SEMA (&A68_JOB) = A68_FALSE;
 953          } else if (eq (p, "NO-PRagmats")) {
 954            OPTION_PRAGMAT_SEMA (&A68_JOB) = A68_FALSE;
 955          }
 956  // STRICT ignores A68G extensions to A68 syntax.
 957          else if (eq (p, "STRict")) {
 958            OPTION_STRICT (&A68_JOB) = A68_TRUE;
 959            OPTION_PORTCHECK (&A68_JOB) = A68_TRUE;
 960          }
 961  // VERBOSE in case you want to know what Algol68G is doing.
 962          else if (eq (p, "VERBose")) {
 963            OPTION_VERBOSE (&A68_JOB) = A68_TRUE;
 964          }
 965  // VERSION lists the current version at an appropriate time in the future.
 966          else if (eq (p, "Version")) {
 967            OPTION_VERSION (&A68_JOB) = A68_TRUE;
 968          } else if (eq (p, "MODular-arithmetic")) {
 969            OPTION_NODEMASK (&A68_JOB) |= MODULAR_MASK;
 970          } else if (eq (p, "NOMODular-arithmetic")) {
 971            OPTION_NODEMASK (&A68_JOB) &= ~MODULAR_MASK;
 972          } else if (eq (p, "NO-MODular-arithmetic")) {
 973            OPTION_NODEMASK (&A68_JOB) &= ~MODULAR_MASK;
 974          }
 975  // XREF and NOXREF switch on/off a cross reference.
 976          else if (eq (p, "XREF")) {
 977            OPTION_SOURCE_LISTING (&A68_JOB) = A68_TRUE;
 978            OPTION_CROSS_REFERENCE (&A68_JOB) = A68_TRUE;
 979            OPTION_NODEMASK (&A68_JOB) |= (CROSS_REFERENCE_MASK | SOURCE_MASK);
 980          } else if (eq (p, "NOXREF")) {
 981            OPTION_NODEMASK (&A68_JOB) &= ~(CROSS_REFERENCE_MASK | SOURCE_MASK);
 982          } else if (eq (p, "NO-Xref")) {
 983            OPTION_NODEMASK (&A68_JOB) &= ~(CROSS_REFERENCE_MASK | SOURCE_MASK);
 984          }
 985  // PRELUDELISTING cross references preludes, if they ever get implemented ...
 986          else if (eq (p, "PRELUDElisting")) {
 987            OPTION_SOURCE_LISTING (&A68_JOB) = A68_TRUE;
 988            OPTION_CROSS_REFERENCE (&A68_JOB) = A68_TRUE;
 989            OPTION_STATISTICS_LISTING (&A68_JOB) = A68_TRUE;
 990            OPTION_NODEMASK (&A68_JOB) |= (SOURCE_MASK | CROSS_REFERENCE_MASK);
 991            OPTION_STANDARD_PRELUDE_LISTING (&A68_JOB) = A68_TRUE;
 992          }
 993  // STATISTICS prints process statistics.
 994          else if (eq (p, "STatistics")) {
 995            OPTION_STATISTICS_LISTING (&A68_JOB) = A68_TRUE;
 996          }
 997  // TREE and NOTREE switch on/off printing of the syntax tree. This gets bulky!.
 998          else if (eq (p, "TREE")) {
 999            OPTION_SOURCE_LISTING (&A68_JOB) = A68_TRUE;
1000            OPTION_TREE_LISTING (&A68_JOB) = A68_TRUE;
1001            OPTION_NODEMASK (&A68_JOB) |= (TREE_MASK | SOURCE_MASK);
1002          } else if (eq (p, "NOTREE")) {
1003            OPTION_NODEMASK (&A68_JOB) ^= (TREE_MASK | SOURCE_MASK);
1004          } else if (eq (p, "NO-TREE")) {
1005            OPTION_NODEMASK (&A68_JOB) ^= (TREE_MASK | SOURCE_MASK);
1006          }
1007  // UNUSED indicates unused tags.
1008          else if (eq (p, "UNUSED")) {
1009            OPTION_UNUSED (&A68_JOB) = A68_TRUE;
1010          }
1011  // EXTENSIVE set of options for an extensive listing.
1012          else if (eq (p, "EXTensive")) {
1013            OPTION_SOURCE_LISTING (&A68_JOB) = A68_TRUE;
1014            OPTION_OBJECT_LISTING (&A68_JOB) = A68_TRUE;
1015            OPTION_TREE_LISTING (&A68_JOB) = A68_TRUE;
1016            OPTION_CROSS_REFERENCE (&A68_JOB) = A68_TRUE;
1017            OPTION_MOID_LISTING (&A68_JOB) = A68_TRUE;
1018            OPTION_STANDARD_PRELUDE_LISTING (&A68_JOB) = A68_TRUE;
1019            OPTION_STATISTICS_LISTING (&A68_JOB) = A68_TRUE;
1020            OPTION_UNUSED (&A68_JOB) = A68_TRUE;
1021            OPTION_NODEMASK (&A68_JOB) |= (CROSS_REFERENCE_MASK | TREE_MASK | CODE_MASK | SOURCE_MASK);
1022          }
1023  // LISTING set of options for a default listing.
1024          else if (eq (p, "Listing")) {
1025            OPTION_SOURCE_LISTING (&A68_JOB) = A68_TRUE;
1026            OPTION_CROSS_REFERENCE (&A68_JOB) = A68_TRUE;
1027            OPTION_STATISTICS_LISTING (&A68_JOB) = A68_TRUE;
1028            OPTION_NODEMASK (&A68_JOB) |= (SOURCE_MASK | CROSS_REFERENCE_MASK);
1029          }
1030  // TTY send listing to standout. Remnant from my mainframe past.
1031          else if (eq (p, "TTY")) {
1032            OPTION_CROSS_REFERENCE (&A68_JOB) = A68_TRUE;
1033            OPTION_STATISTICS_LISTING (&A68_JOB) = A68_TRUE;
1034            OPTION_NODEMASK (&A68_JOB) |= (SOURCE_MASK | CROSS_REFERENCE_MASK);
1035          }
1036  // SOURCE and NOSOURCE print source lines.
1037          else if (eq (p, "SOURCE")) {
1038            OPTION_SOURCE_LISTING (&A68_JOB) = A68_TRUE;
1039            OPTION_NODEMASK (&A68_JOB) |= SOURCE_MASK;
1040          } else if (eq (p, "NOSOURCE")) {
1041            OPTION_NODEMASK (&A68_JOB) &= ~SOURCE_MASK;
1042          } else if (eq (p, "NO-SOURCE")) {
1043            OPTION_NODEMASK (&A68_JOB) &= ~SOURCE_MASK;
1044          }
1045  // OBJECT and NOOBJECT print object lines.
1046          else if (eq (p, "OBJECT")) {
1047            OPTION_OBJECT_LISTING (&A68_JOB) = A68_TRUE;
1048          } else if (eq (p, "NOOBJECT")) {
1049            OPTION_OBJECT_LISTING (&A68_JOB) = A68_FALSE;
1050          } else if (eq (p, "NO-OBJECT")) {
1051            OPTION_OBJECT_LISTING (&A68_JOB) = A68_FALSE;
1052          }
1053  // MOIDS prints an overview of moids used in the program.
1054          else if (eq (p, "MOIDS")) {
1055            OPTION_MOID_LISTING (&A68_JOB) = A68_TRUE;
1056          }
1057  // ASSERTIONS and NOASSERTIONS switch on/off the processing of assertions.
1058          else if (eq (p, "Assertions")) {
1059            OPTION_NODEMASK (&A68_JOB) |= ASSERT_MASK;
1060          } else if (eq (p, "NOAssertions")) {
1061            OPTION_NODEMASK (&A68_JOB) &= ~ASSERT_MASK;
1062          } else if (eq (p, "NO-Assertions")) {
1063            OPTION_NODEMASK (&A68_JOB) &= ~ASSERT_MASK;
1064          }
1065  // PRECISION sets the LONG LONG precision.
1066          else if (eq (p, "PRECision")) {
1067            BOOL_T error = A68_FALSE;
1068            int N = fetch_integral (p, &i, &error);
1069            int k = width_to_mp_digits (N);
1070            if (k <= 0 || error || errno > 0) {
1071              option_error (start_l, start_c, "invalid value in");
1072            } else if (long_mp_digits () > 0 && long_mp_digits () != k) {
1073              option_error (start_l, start_c, "different precision was already specified in");
1074            } else if (k > mp_digits ()) {
1075              set_long_mp_digits (k);
1076            } else {
1077              option_error (start_l, start_c, "attempt to set LONG LONG precision lower than LONG precision");
1078            }
1079          }
1080  // BACKTRACE and NOBACKTRACE switch on/off stack backtracing.
1081          else if (eq (p, "BACKtrace")) {
1082            OPTION_BACKTRACE (&A68_JOB) = A68_TRUE;
1083          } else if (eq (p, "NOBACKtrace")) {
1084            OPTION_BACKTRACE (&A68_JOB) = A68_FALSE;
1085          } else if (eq (p, "NO-BACKtrace")) {
1086            OPTION_BACKTRACE (&A68_JOB) = A68_FALSE;
1087          }
1088  // BREAK and NOBREAK switch on/off tracing of the running program.
1089          else if (eq (p, "BReakpoint")) {
1090            OPTION_NODEMASK (&A68_JOB) |= BREAKPOINT_MASK;
1091          } else if (eq (p, "NOBReakpoint")) {
1092            OPTION_NODEMASK (&A68_JOB) &= ~BREAKPOINT_MASK;
1093          } else if (eq (p, "NO-BReakpoint")) {
1094            OPTION_NODEMASK (&A68_JOB) &= ~BREAKPOINT_MASK;
1095          }
1096  // TRACE and NOTRACE switch on/off tracing of the running program.
1097          else if (eq (p, "TRace")) {
1098            OPTION_TRACE (&A68_JOB) = A68_TRUE;
1099            OPTION_NODEMASK (&A68_JOB) |= BREAKPOINT_TRACE_MASK;
1100          } else if (eq (p, "NOTRace")) {
1101            OPTION_NODEMASK (&A68_JOB) &= ~BREAKPOINT_TRACE_MASK;
1102          } else if (eq (p, "NO-TRace")) {
1103            OPTION_NODEMASK (&A68_JOB) &= ~BREAKPOINT_TRACE_MASK;
1104          }
1105  // TIMELIMIT lets the interpreter stop after so-many seconds.
1106          else if (eq (p, "TImelimit") || eq (p, "TIME-Limit")) {
1107            BOOL_T error = A68_FALSE;
1108            int k = fetch_integral (p, &i, &error);
1109            if (error || errno > 0) {
1110              option_error (start_l, start_c, "conversion error in");
1111            } else if (k < 1) {
1112              option_error (start_l, start_c, "invalid time span in");
1113            } else {
1114              OPTION_TIME_LIMIT (&A68_JOB) = k;
1115            }
1116          } else {
1117  // Unrecognised.
1118            option_error (start_l, start_c, "unrecognised");
1119          }
1120          a68_free (stale);
1121        }
1122  // Go processing next item, if present.
1123        if (i != NO_OPTION_LIST) {
1124          FORWARD (i);
1125        }
1126      }
1127    }
1128  // Mark options as processed.
1129    for (; j != NO_OPTION_LIST; FORWARD (j)) {
1130      PROCESSED (j) = A68_TRUE;
1131    }
1132    return (BOOL_T) (errno == 0);
1133  }
     


© 2002-2024 J.M. van der Veer (jmvdveer@xs4all.nl)