source: trunk/etc/src/yrcmt.c

/*
Copyright or © or Copr. MMSA team, LOCEAN Paris (2011)

This software is a framework for variational data assimilation in
numerical models.

This software is governed by the CeCILL license under French law and
abiding by the rules of distribution of free software.  You can  use,
modify and/ or redistribute the software under the terms of the CeCILL
license as circulated by CEA, CNRS and INRIA at the following URL
"http://www.cecill.info".

As a counterpart to the access to the source code and  rights to copy,
modify and redistribute granted by the license, users are provided only
with a limited warranty  and the software's author,  the holder of the
economic rights,  and the successive licensors  have only  limited
liability.

In this respect, the user's attention is drawn to the risks associated
with loading,  using,  modifying and/or developing or reproducing the
software by the user in light of its specific status of free software,
that may mean  that it is complicated to manipulate,  and  that  also
therefore means  that it is reserved for developers  and  experienced
professionals having in-depth computer knowledge. Users are therefore
encouraged to load and test the software's suitability as regards their
requirements in conditions enabling the security of their systems and/or
data to be ensured and,  more generally, to use and operate it in the
same conditions as regards security.

The fact that you are presently reading this means that you have had
knowledge of the CeCILL license and that you accept its terms.

YAO website : http://www.locean-ipsl.upmc.fr/~yao/
Contact : yao@locean-ipsl.upmc.fr
*/
// Contributor : Charles Sorror
//gcc yrcmt.c -Wall -o yrcmt

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

#define BUFSIZE       2048

FILE    *fpin, *fpout;
char    buffer[BUFSIZE+1];
char    *pstr1, *pstr2, *pstr3, *pstr4;
short   in_cmt_star, end;
short   in_string;
int     nbenrlus=0;

//==========================================================
int main(int argc, char *argv[])
{   //pour virer les commentaires

        /* debut : verif arg, ouverture fichier ... */
        if (argc<2 || argc>3)
        {               printf ("syntaxe error: yrcmy file_in [file_out]}\n");
                  exit(-9);
        }
        if ((fpin = fopen(argv[1], "r")) <= 0)
        {               printf ("problem when opening %s \n", argv[1]);
                        exit(-9);
        }
        if (argc==3)
        {  if ((fpout = fopen(argv[2], "w")) <= 0)
           {  printf ("problem when opening %s \n", argv[2]);
                          exit(-9);
           }
        }
        else fpout = stdout;

        while (  (fgets(buffer, BUFSIZE+1, fpin)) != NULL)
  {    ++nbenrlus;
       pstr1 = buffer;
                         end = 0;
       while (!end)
       {
           if (in_cmt_star)
           {  //si on est dans un commentaire, on regarde
              //si on en trouve la fin
              pstr1 = strstr(pstr1, "*/");
              if (pstr1 != NULL)
              {  pstr1+=2;
                 in_cmt_star = 0;
              }
                                                        else
                                                           end=1;
           }

           if (!in_cmt_star)
           {  //si on est pas (ou plus) dans commentaire, on regarde si
              //y'en a
              pstr2 = pstr3 = pstr1;
              pstr2 = strstr(pstr1, "/*");
              pstr3 = strstr(pstr1, "//");
                                                        pstr4 = strstr(pstr1, "\"");

                                                        if (pstr4!=NULL)
                                                        {  //if ( (pstr4<pstr2 && pstr2!=NULL) && (pstr4<pstr3 && pstr3!=NULL) ) //"
                                                           in_string=1;
                                                                 if (pstr2<pstr4 && pstr2!=NULL) in_string=0;
                                                                 if (pstr3<pstr4 && pstr3!=NULL) in_string=0;
                                                                 if (in_string) //on a detected le debut d'une chaine de carateres
                                                           {              //on doit en trouver la fin sur la meme ligne !!!
                                                                                ++pstr4;
                                                                                pstr4 = strstr(pstr4, "\"");
                                                                                if (pstr4==NULL)
                                                                                {  printf(" > yrcmt error a line %i: a string must end on the same line !!!?\n", nbenrlus);
                                                                                   exit(-9);
                                                                                }
                                                                                //on va ecrire y compris jusqu'a la fin de la chaine de carateres
                                                                                pstr4[0]='\0';
                                                                                printf("%s", pstr1);
                                                                                printf("\"");
                                                                                pstr1=pstr4+1;
                                                                                if (pstr1[0]=='\0')
                                                                                   end=1;
                                                                                continue;
                                                                 }
                                                        }

                                                        if (pstr2!=NULL && pstr3!=NULL)
                                                        {  //c'est l'inf qui compte
                                                           if (pstr2<pstr3) //commentaire star (/*)
                                                                 {  in_cmt_star=1;
                                                                                //il faut écrire ce qu'il y a avant
                                                                    pstr2[0]='\0';
                                printf("%s", pstr1);
                                                                    pstr1=pstr2+2; //pour avancer
                                                                 }
                                                                 if (pstr3<pstr2) //commentaire slash (//)
                                                                 {  //il faut écrire ce qu'il y a avant
                                                                          pstr3[0]='\0';
                                printf("%s", pstr1);
                                                                                end=1;
                                                                 }
                                                        }
                                                        else if (pstr2!=NULL) //commentaire star (/*)
                                                  {  in_cmt_star=1;
                                                                 //il faut écrire ce qu'il y a avant
                                                           pstr2[0]='\0';
                 printf("%s", pstr1);
                                                                 pstr1=pstr2+2; //pour avancer
                                                        }
                                                        else if (pstr3!=NULL) //commentaire slash (//)
                                                  {  //il faut écrire ce qu'il y a avant
                                                           pstr3[0]='\0';
                 printf("%s", pstr1);
                                                                 end=1;
                                                        }
                                                        else //pas de commentaire, on reconduit
                                                        {  printf("%s", pstr1);
                                                                 end=1;
                                                        }
                                         }
       }
  }

   return(0);
}
//=========================================================