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cjklatex.c

/*
  Purpose: call latex after preprocessing of the .tex file by
           the cjk conversion tool. The old f_name.bat script
         is not working anymore.
  Author : F. Popineau <Fabrice.Popineau@supelec.fr>
  Date   : <29/06/2001>
*/

/*
  Copyright (C) 2001-2008  F. Popineau <Fabrice.Popineau@supelec.fr>
  
  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 2 of the License, 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 in doc/COPYING; if not, write to the Free
  Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  MA 02110-1301 USA
*/

#include <stdio.h>
#include <stdlib.h>
#include <win32lib.h>

#include <kpathsea/config.h>
#include <kpathsea/lib.h>
#include <kpathsea/getopt.h>

static char *cjklatex_version_string = "1.0";

static const char *usage_str[] = {
  "Usage: %s OPTIONS FILE\n",
  "Calls `latex' on FILE after conversion by the filter\n",
  "specified by OPTIONS.\n",
  "--conv=bg5\tfor traditional Chinese, encoding Big 5,\n",
  "--conv=bg5p\tfor Chinese, encoding Big 5+,\n",
  "--conv=cef\tfor Chinese Encoding Framework, encoding CEF,\n",
  "--conv=cef5\tidem CEF, also converts Big5 characters,\n",
  "--conv=cefs\tidem CEF, also converts SJIS characters,\n",
  "--conv=sjis\tfor Japanese, SJIS encoding,\n",
  "--conv=gbk\tfor Chinese, encoding GBK.",
  "\nAlternatively, for compatibility with the previous DOS batch files,\n",
  "you can also copy this program to any of the following names:\n",
  "bg5latex.exe,bg5pltx.exe,cef5ltx.exe,ceflatex.exe,cefsltx.exe,\n",
  "gbklatex.exe and sjisltx.exe .\n",
  "Then running one of these programs will be identical to specify\n",
  "the corresponding option.\n",
  "\nAdditional options:\n",
  "--verbose\tbe a bit more verbose about what is happening,\n",
  "--nocleanup\tdo not remove intermediate files,\n",
  "--latex=engine\tuse `engine' instead of `latex' to process the file.\n",
  NULL
};

static char *progname = NULL;

static struct _conv_table {
  char *progname;
  char *processor;
} CJKtable[] = {
  { "cjklatex", "" },
  { "bg5latex", "bg5conv" },
  { "bg5pltx", "extconv" },
  { "cef5ltx", "cef5conv" },
  { "ceflatex", "cefconv" },
  { "cefsltx", "cefsconv" },
  { "gbklatex", "extconv" },
  { "sjisltx", "sjisconv" }
};

#define PROGRAM_IS(p) FILESTRCASEEQ (p, progname)
#define ARGUMENT_IS(a) STREQ (long_options[option_index].name, a)

static int program_number = -1;
static int opt_verbose = 0;
static int opt_nocleanup = 0;
static char *texname, *cjkname, *texengine;

static struct option long_options [] = {
    { "debug",               1, 0, 0},
    { "help",                0, 0, 0},
    { "version",             0, 0, 0},
    { "verbose",             0, 0, 0},
    { "nocleanup",           0, 0, 0},
    { "latex",               1, 0, 0},
    { "conv",                1, 0, 0},
    {0, 0, 0, 0}
};

BOOL sigint_handler(DWORD dwCtrlType)
{
  /* Fix me : there is a problem if a system() command is running.
     We should wait for the son process to be interrupted.
     Only way I can think of to do that : rewrite system() based on
     spawn() with parsing of the command line and set a global pid
     Next cwait(pid) in the HandlerRoutine. 
     */

  /* This is not that good, but else we would need to wait for 
     the child processes to finish ! */
  Sleep(250);

  fprintf(stderr, "Sending Ctrl+Break!\n");
  GenerateConsoleCtrlEvent(CTRL_BREAK_EVENT, 0);

  if (! opt_nocleanup)
    unlink(cjkname);

  exit(1);

  return FALSE;               /* return value obligatory */
}
   
void usage()
{
  int i;
  fprintf(stderr, "CJKlatex version %s\n", cjklatex_version_string);
  fprintf(stderr,usage_str[0], progname );
  fputs("\n", stderr);
  for(i = 1; usage_str[i]; ++i)
    fputs(usage_str[i], stderr);
}

int do_process(char *processor, char *filename)
{
  char *ext, *p;
  char cmd[_MAX_PATH*3];
  DWORD dwFA;
  int ret;

  if (strlen(filename) > 4 && _strnicmp(filename + strlen(filename) - 4, ".tex", 4) == 0) {
    texname = xstrdup(filename);
  }
  else {
    texname = concat(filename, ".tex");
  }
  for (p = texname; p && *p; p++)
    *p = (*p == '\\' ? '/' : *p);

  dwFA = GetFileAttributes(texname);
  if (dwFA == 0xFFFFFFFF || (dwFA & FILE_ATTRIBUTE_DIRECTORY)) {
    fprintf(stderr, "%s: %s is an invalid input file.\n",
          progname, texname);
    ret = 1;
  }
  else {
    cjkname = xstrdup(texname);
    ext = strrchr(cjkname, '.');
    assert(ext != NULL);
    strcpy(cjkname + (ext - cjkname), ".cjk");
    
    sprintf(cmd, "%s < %s > %s", processor, texname, cjkname);
    if (opt_verbose)
      fprintf(stderr, "%s: running command `%s'.\n", progname, cmd);
    ret = system(cmd);
    if (ret == 0) {
      sprintf(cmd, "%s %s", texengine, cjkname);
      if (opt_verbose)
      fprintf(stderr, "%s: running command `%s'.\n", progname, cmd);
      ret = system(cmd);
      if (! opt_nocleanup)
      unlink(cjkname);
    }
  }

  free(texname);
  free(cjkname);

  return ret;
}

void main(int argc, char *argv[])
{
  int g; /* getopt return code */
  int i;
  int option_index;
  char *filename;

  if (!progname)
    progname = argv[0];

  kpse_set_program_name (progname, NULL);
  progname = kpse_program_name;

  for (i = 0; i < sizeof(CJKtable)/sizeof(CJKtable[0]) && program_number < 0; i++) {
    if (STREQ(progname, CJKtable[i].progname)
#if 0
      || (STREQ(progname, CJKtable[i].progname)
          && STREQ(progname+strlen(CJKtable[i].progname), ".exe"))
#endif
      ) {
      program_number = i;
    }
  }

  if (program_number == -1) {
    fprintf(stderr, "%s: this program has been incorrecty copied to the name %s.\n", progname, progname);
    usage();
    exit(1);
  }

  for(;;) {
    g = getopt_long_only (argc, argv, "", long_options, &option_index);

    if (g == EOF)
      break;

    if (g == '?') {
      usage();                /* Unknown option.  */
      exit(1);
    }

    /* assert (g == 0); */ /* We have no short option names.  */
    /*
      FIXME : try 'mktexpk --mfmode --bdpi 600 ...'
      */
    if (ARGUMENT_IS ("debug")) {
      kpathsea_debug |= atoi (optarg);
    }
    else if (ARGUMENT_IS ("help")) {
      usage();
      exit(0);
    }
    else if (ARGUMENT_IS ("verbose")) {
      opt_verbose = 1;
    }
    else if (ARGUMENT_IS ("nocleanup")) {
      opt_nocleanup = 1;
    }
    else if (ARGUMENT_IS ("latex")) {
      texengine = xstrdup(optarg);
    }
    else if (ARGUMENT_IS ("version")) {
      fprintf(stderr, "%s of %s.\n", progname, cjklatex_version_string);
      exit(0);
    }
    else if (PROGRAM_IS("cjklatex")) {
      if (ARGUMENT_IS("conv")) {
      for (i = 1; i < sizeof(CJKtable)/sizeof(CJKtable[0]) && program_number <= 0; i++) {
        if (STRNEQ(optarg, CJKtable[i].progname, strlen(optarg))) {
          program_number = i;
        }
      }
      }
    }
  }  

  /* shifting options from argv[] list */
  for (i = 1; optind < argc; i++, optind++)
    argv[i] = argv[optind];
  argv[i] = NULL;

  argc = i;

  if (argc < 2) {
    fprintf (stderr, "%s: Missing argument(s).\nTry `%s --help' for more information.\n", progname, kpse_program_name);
    exit(1);
  }

  if (argc > 2) {
    fprintf(stderr, "%s: Extra arguments", progname);
    for (i = 2; i < argc; i++)
      fprintf (stderr, " \"%s\"", argv[i]);
    fprintf (stderr, "\nTry `%s --help' for more information.\n",
           kpse_program_name);
    exit(1);
  }

  SetConsoleCtrlHandler((PHANDLER_ROUTINE)sigint_handler, TRUE);

  filename = xstrdup(argv[1]);

  assert(program_number > 0);

  if (! texengine) {
    texengine = xstrdup("latex");
  }

  do_process(CJKtable[program_number].processor, filename);

  free(filename);
  free(texengine);
}

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