示例#1
0
文件: minitree.c 项目: dsholla/rdp1_6
int main(int argc, char *argv[])
{
  clock_t rdp_finish_time, rdp_start_time = clock();
  int
    rdp_symbol_statistics = 0,    /* show symbol_ table statistics flag */
    rdp_line_echo_all = 0,        /* make a listing on all passes flag */
    rdp_filter = 0,               /* filter flag */
    rdp_line_echo = 0,            /* make listing flag */

    rdp_lexicalise = 0;            /* print lexicalised output flag */

  unsigned long rdp_textsize = 35000l;   /* size of scanner text array */

  unsigned long rdp_tabwidth = 8l;   /* tab expansion width */

  char* rdp_vcg_filename = NULL;      /* filename for -V option */

  rdp_tree_node_data* rdp_tree = (rdp_tree_node_data*) graph_insert_graph("RDP derivation tree");  /* hook for derivation tree */
  rdp_tree_node_data* rdp_tree_root;

  arg_message("Minitree compiler V1.50 (c) Adrian Johnstone 1997\n" RDP_STAMP "\n\n""Usage: minitree [options] source[.m]");

  arg_message("");
  arg_boolean('f', "Filter mode (read from stdin and write to stdout)", &rdp_filter);
  arg_boolean('l', "Make a listing", &rdp_line_echo);
  arg_boolean('L', "Print lexicalised source file", &rdp_lexicalise);
  arg_string ('o', "Write output to filename", &rdp_outputfilename);
  arg_boolean('s', "Echo each scanner symbol as it is read", &rdp_symbol_echo);
  arg_boolean('S', "Print summary symbol table statistics", &rdp_symbol_statistics);
  arg_numeric('t', "Tab expansion width (default 8)", &rdp_tabwidth);
  arg_numeric('T', "Text buffer size in bytes for scanner (default 20000)", &rdp_textsize);
  arg_boolean('v', "Set verbose mode", &rdp_verbose);
  arg_string ('V', "Write derivation tree to filename in VCG format", &rdp_vcg_filename);

  rdp_sourcefilenames = arg_process(argc, argv);

  /* Fix up filetypes */
  for (rdp_sourcefilenumber = 0; rdp_sourcefilenames[rdp_sourcefilenumber] != NULL; rdp_sourcefilenumber++)
    rdp_sourcefilenames[rdp_sourcefilenumber] = text_default_filetype(rdp_sourcefilenames[rdp_sourcefilenumber], "m");

  if (rdp_filter)
  {
    rdp_sourcefilenames[0] = "-";
    rdp_outputfilename = "-";
    rdp_sourcefilenames[1] = NULL;     /* make sure no further filenames are taken from the array */

  }
  if ((rdp_sourcefilename = rdp_sourcefilenames[0]) == NULL)
     arg_help("no source files specified");

  if (rdp_sourcefilenames[1] != NULL)
    text_message(TEXT_FATAL, "multiple source files not allowed\n");
  text_init(rdp_textsize, 25, 100, (int) rdp_tabwidth);
  scan_init(0, 0, 0, rdp_symbol_echo, rdp_tokens);
  if (rdp_lexicalise)
    scan_lexicalise();
  mini = symbol_new_table("mini", 101, 31, symbol_compare_string, symbol_hash_string, symbol_print_string);
  rdp_set_initialise();
  rdp_load_keywords();
  if (rdp_verbose)
     text_printf("\nMinitree compiler V1.50 (c) Adrian Johnstone 1997\n" RDP_STAMP "\n\n");
  for (rdp_pass = 1; rdp_pass <= RDP_PASSES; rdp_pass++)
  {
    rdp_tree_update = rdp_pass == RDP_PASSES;
    text_echo(rdp_line_echo_all || (rdp_line_echo && rdp_pass == RDP_PASSES));

    for (rdp_sourcefilenumber = 0; (rdp_sourcefilename = rdp_sourcefilenames[rdp_sourcefilenumber]) != NULL; rdp_sourcefilenumber++)
    {
      if (text_open(rdp_sourcefilename) == NULL)
        arg_help("unable to open source file");

      text_get_char();
      scan_();

      program(rdp_tree_root = rdp_add_node("program", rdp_tree));            /* call parser at top level */
      if (text_total_errors() != 0)
        text_message(TEXT_FATAL, "error%s detected in source file ''\n", text_total_errors() == 1 ? "" : "s", rdp_sourcefilename);   /* crash quietly */ 
      graph_epsilon_prune_rdp_tree(rdp_tree_root, sizeof(rdp_tree_edge_data));
    }
  }

  rdp_sourcefilename = rdp_sourcefilenames[0];     /* Reset filename to first file in the list */

  graph_set_root(rdp_tree, rdp_tree_root);
  if (rdp_vcg_filename != NULL)
  {
    FILE *rdp_vcg_file;

    if (*rdp_vcg_filename == '\0')   /* No filename supplied */
      rdp_vcg_filename = "rdparser";
    rdp_vcg_file = fopen((rdp_vcg_filename = text_default_filetype(rdp_vcg_filename, "vcg")), "w");

    if (rdp_vcg_file == NULL)
      text_message(TEXT_FATAL, "unable to open VCG file '%s' for write\n", rdp_vcg_filename);

    if (rdp_verbose)
      text_message(TEXT_INFO, "Dumping derivation tree to VCG file '%s'\n", rdp_vcg_filename);

    text_redirect(rdp_vcg_file);
    graph_vcg(rdp_tree, NULL, scan_vcg_print_node, scan_vcg_print_edge);
    text_redirect(stdout);
    fclose(rdp_vcg_file);
  }

   code_generate(rdp_sourcefilename, rdp_outputfilename, rdp_tree); 
  if (rdp_symbol_statistics)
  {
    symbol_print_all_table_statistics(11);
    symbol_print_all_table();

  }
  text_print_total_errors();
  if (rdp_verbose)
  {
    rdp_finish_time = clock();
    text_message(TEXT_INFO, "%.3f CPU seconds used\n", ((double) (rdp_finish_time-rdp_start_time)) / CLOCKS_PER_SEC);
  }
  return rdp_error_return;
}
int main(int argc, char *argv[])
{
  clock_t rdp_finish_time, rdp_start_time = clock();
  int
    rdp_symbol_statistics = 0,    /* show symbol_ table statistics flag */
    rdp_line_echo_all = 0,        /* make a listing on all passes flag */
    rdp_filter = 0,               /* filter flag */
    rdp_line_echo = 0,            /* make listing flag */

    rdp_lexicalise = 0;            /* print lexicalised output flag */

  unsigned long rdp_textsize = 35000l;   /* size of scanner text array */

  unsigned long rdp_tabwidth = 8l;   /* tab expansion width */

  char* rdp_vcg_filename = NULL;      /* filename for -V option */

  arg_message("rdparser\n" RDP_STAMP "\n\n""Usage: regex [options] source");

  arg_message("");
  arg_boolean('f', "Filter mode (read from stdin and write to stdout)", &rdp_filter);
  arg_boolean('l', "Make a listing", &rdp_line_echo);
  arg_boolean('L', "Print lexicalised source file", &rdp_lexicalise);
  arg_string ('o', "Write output to filename", &rdp_outputfilename);
  arg_boolean('s', "Echo each scanner symbol as it is read", &rdp_symbol_echo);
  arg_boolean('S', "Print summary symbol table statistics", &rdp_symbol_statistics);
  arg_numeric('t', "Tab expansion width (default 8)", &rdp_tabwidth);
  arg_numeric('T', "Text buffer size in bytes for scanner (default 20000)", &rdp_textsize);
  arg_boolean('v', "Set verbose mode", &rdp_verbose);
  arg_string ('V', "Write derivation tree to filename in VCG format", &rdp_vcg_filename);

  rdp_sourcefilenames = arg_process(argc, argv);

  /* Fix up filetypes */
  for (rdp_sourcefilenumber = 0; rdp_sourcefilenames[rdp_sourcefilenumber] != NULL; rdp_sourcefilenumber++)
    rdp_sourcefilenames[rdp_sourcefilenumber] = text_default_filetype(rdp_sourcefilenames[rdp_sourcefilenumber], "");

  if (rdp_filter)
  {
    rdp_sourcefilenames[0] = "-";
    rdp_outputfilename = "-";
    rdp_sourcefilenames[1] = NULL;     /* make sure no further filenames are taken from the array */

  }
  if ((rdp_sourcefilename = rdp_sourcefilenames[0]) == NULL)
     arg_help("no source files specified");

  if (rdp_sourcefilenames[1] != NULL)
    text_message(TEXT_FATAL, "multiple source files not allowed\n");
  text_init(rdp_textsize, 25, 100, (int) rdp_tabwidth);
  scan_init(0, 0, 0, rdp_symbol_echo, rdp_tokens);
  if (rdp_lexicalise)
    scan_lexicalise();
  rdp_set_initialise();
  rdp_load_keywords();
  if (rdp_verbose)
     text_printf("\nrdparser\n" RDP_STAMP "\n\n");
  for (rdp_pass = 1; rdp_pass <= RDP_PASSES; rdp_pass++)
  {
    text_echo(rdp_line_echo_all || (rdp_line_echo && rdp_pass == RDP_PASSES));

    for (rdp_sourcefilenumber = 0; (rdp_sourcefilename = rdp_sourcefilenames[rdp_sourcefilenumber]) != NULL; rdp_sourcefilenumber++)
    {
      if (text_open(rdp_sourcefilename) == NULL)
        arg_help("unable to open source file");

      text_get_char();
      scan_();

      reg();            /* call parser at top level */
      if (text_total_errors() != 0)
        text_message(TEXT_FATAL, "error%s detected in source file ''\n", text_total_errors() == 1 ? "" : "s", rdp_sourcefilename);   /* crash quietly */ 
    }
  }

  rdp_sourcefilename = rdp_sourcefilenames[0];     /* Reset filename to first file in the list */

  if (rdp_symbol_statistics)
  {
    symbol_print_all_table_statistics(11);
    symbol_print_all_table();

  }
  text_print_total_errors();
  if (rdp_verbose)
  {
    rdp_finish_time = clock();
    text_message(TEXT_INFO, "%.3f CPU seconds used\n", ((double) (rdp_finish_time-rdp_start_time)) / CLOCKS_PER_SEC);
  }
  return rdp_error_return;
}