gbc_compile.c

/***************************************************************************

  compile.c

  Compiler initialization, reserved keywords table and subroutines table.

  (c) 2000-2004 Benoît Minisini <gambas@users.sourceforge.net>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 1, or (at your option)
  any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

***************************************************************************/

#define __GBC_COMPILE_C

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <fcntl.h>

#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>

#include <unistd.h>

#include "gb_common.h"
#include "gb_error.h"
#include "gb_str.h"
#include "gb_file.h"
#include "gb_component.h"

#include "gbc_compile.h"
#include "gb_reserved.h"
#include "gbc_read.h"
#include "gbc_trans.h"
#include "gbc_header.h"
#include "gb_code.h"
#include "gbc_output.h"
#include "gbc_form.h"

/*#define DEBUG*/

PUBLIC char *COMP_project;
PUBLIC char *COMP_info_path;
PUBLIC char *COMP_classes = NULL;

PUBLIC COMPILE COMP_current;


PRIVATE bool read_line(FILE *f, char *dir, int max)
{
  char *p;
  int c;

  p = dir;

  for(;;)
  {
    max--;

    c = fgetc(f);
    if (c == EOF)
      return TRUE;

    if (c == '\n' || max == 0)
    {
      *p = 0;
      return FALSE;
    }

    *p++ = (char)c;
  }
}


PRIVATE void add_list_file(char *library)
{
  char *path;
  FILE *fi;
  char line[256];
  
  path = (char *)FILE_cat(COMP_info_path, library, NULL);
  strcat(path, ".list");
  
  /*printf("Reading component list file %s\n", path);*/
  
  fi = fopen(path, "r");
  if (!fi)
    THROW(E_OPEN, path);
    
  for(;;)
  {
    if (read_line(fi, line, sizeof(line)))
      break;
      
    BUFFER_add(&COMP_classes, line, strlen(line));
    BUFFER_add(&COMP_classes, "\n", 1);
  }
  
  fclose(fi);
}


PUBLIC void COMPILE_init(const char *exec)
{
  const char *path;
  FILE *fp;
  char line[256];
  DIR *dir;
  struct dirent *dirent;
  const char *name;

  RESERVED_init();

  path = FILE_find_gambas(exec);
  
  COMP_info_path = STR_copy(FILE_cat(FILE_get_dir(FILE_get_dir(path)), "share/gambas/info", NULL));
  
  /* Classes du projet */
  
  BUFFER_create(&COMP_classes);
  
  add_list_file("gb");
  
  fp = fopen(COMP_project, "r");
  if (!fp)
    THROW(E_OPEN, COMP_project);
 
  for(;;)
  {
    if (read_line(fp, line, sizeof(line)))
      break;
   
    /*printf("%s\n", line);*/
         
    if (strncmp(line, "Library=", 8))
      continue;
    
    add_list_file(&line[8]);
  }
  
  fclose(fp);
     
  dir = opendir(FILE_get_dir(COMP_project));
  if (dir)
  {
    while ((dirent = readdir(dir)) != NULL)
    {
      name = dirent->d_name;
      if (*name == '.')
        continue;

      if ((strcasecmp(FILE_get_ext(name), "module") == 0)
          || (strcasecmp(FILE_get_ext(name), "class") == 0))
      {
        name = FILE_get_basename(name);
        BUFFER_add(&COMP_classes, name, strlen(name));
        BUFFER_add(&COMP_classes, "\n", 1);
      }
    }
    
    closedir(dir);
  } 
  
  BUFFER_add(&COMP_classes, "\n", 1);
}

PUBLIC void COMPILE_begin(const char *file, bool trans)
{
  CLEAR(JOB);

  JOB->name = STR_copy(file);
  JOB->form = FORM_get_file(JOB->name);
  JOB->output = OUTPUT_get_file(JOB->name);

  if (trans)
  {
    JOB->trans = TRUE;
    JOB->tname = OUTPUT_get_trans_file(JOB->name);
  }

  BUFFER_create(&JOB->source);
  ARRAY_create(&JOB->pattern);
  CLASS_create(&JOB->class);
}


PUBLIC void COMPILE_load(void)
{
  BUFFER_load_file(&JOB->source, JOB->name);
  if (JOB->source[BUFFER_length(JOB->source) - 1] != '\n')
    BUFFER_add(&JOB->source, "\n", 1);
}


PUBLIC void COMPILE_end(void)
{
  CLASS_delete(&JOB->class);
  BUFFER_delete(&JOB->source);
  ARRAY_delete(&JOB->pattern);

  STR_free(JOB->name);
  STR_free(JOB->form);
  STR_free(JOB->output);
  if (JOB->trans)
    STR_free(JOB->tname);
}

PUBLIC void COMPILE_exit(void)
{
  RESERVED_exit();
  BUFFER_delete(&COMP_classes);
  STR_free(COMP_project);
  STR_free(COMP_info_path);
}