Subversion Repositories wimsdev

/*    Copyright (C) 1998-2003 XIAO, Gang of Universite de Nice - Sophia Antipolis

 *

 *  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; if not, write to the Free Software

 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

/* Interface Macaulay2 to wims */

/*************** Customization: change values hereafter ****************/

/* limit of input/output file sizes */

#define fsizelim 131072

/* This string tells m2 to exit. */

#define quitstring "\nexit;\n"

/* The way to print a string in the program. */

#define stringprinter "print(\"%s\");\n"

/* This is m2 home page. To be kept up to date. */

#define homepage "http://www.math.uiuc.edu/Macaulay2/"

char *nameofcmd="M2";

int precision=20; /* default */

char header[]="Thing#{Standard,BeforePrint} = toString; \

scan(methods {Standard,AfterPrint}, (a,b) -> installMethod(a,b,identity));\

";

struct {

    char *wname; char *defaultval; char *setname;

} setups[]={

/* {"w_m2_precision", "20", "fpprec"}

*/};

/* names which are not allowed */

char *illegal[]={

      "exec","run","fork",

      "input",  /* "load","needs", */

      "tmpname", "path", "processID",

      "getWWW", "getenv",

      "<<", "close"

};

/* name parts which are not allowed */

char *illpart[]={

};

/***************** Nothing should need change hereafter *****************/

#define progname "m2"

#include "common.h"

#include "common.c"

/* check for security violations in command string */

void check_parm(char *pm)

{

    find_illegal(pm);

}

char *find_prompt(char *p)

{

    char *pp=p, *pt;

    redo:

    if(*pp==0) return NULL;

    pp=strstr(pp,"\ni");

    pt=pp;

    if(pp!=NULL) {

      pp+=2; while(isdigit(*pp)) pp++;

      if(*pp!=' ') goto redo;

      while(*pp==' ') pp++;

      if(*pp!=':' || *(pp+1)!=' ') goto redo;

    }

    return pt;

}

/* process and print m2 output */

void output(char *p)

{

    int i,n;

    char *pp, *pe, *pt;

    pp=find_prompt(p);

    while(pp!=NULL && *pp!=0) {

      pe=find_prompt(pp+1); pp=strchr(pp+1,'\n');

      if(pp==NULL) return;

      if(pe==NULL) pe=pp+strlen(pp); else *pe++=0;

      pp++;

      if(strlen(pp)==0) {

          emptyline:

          puts(""); pp=pe; continue;

      }

      n=strlen(pp); if(n==0) goto emptyline;

/* strip leading and trailing spaces */

      while(isspace(*pp) && pp<pe) pp++;

      pt=pp+strlen(pp)-1;

      while(pt>=pp && isspace(*pt)) *pt--=0;

/* make every output one-line */

      for(i=0;i<n;i++) {

          if(*(pp+i)=='\n') *(pp+i)='#';

      }

      puts(pp); pp=pe;

    }

}

void about(void)

{

    char *p;

    cmdparm=""; prepabout(quitstring,"/dev/null",outputfname);

    if(readabout()>0) {

      p=strchr(aboutbuf,'\n'); if(p!=NULL) *p=0;

      strip_trailing_spaces2(aboutbuf);

      printf("<a href=\"%s\">%s</a>",homepage,aboutbuf);

    }

}

char *dynsetup(char *ptr, char *end)

{

    int i;

    char *p, *pp;

    for(i=0;i<SETUP_NO;i++) {

      p=getenv(setups[i].wname);

      if(p!=NULL) for(pp=p;*pp;pp++) if(!isspace(*pp) && !isalnum(*pp)) p="";

      if(p==NULL || *p==0) p=setups[i].defaultval;

      snprintf(ptr,end-ptr,"%s:%s;\n",setups[i].setname,p);

      ptr+=strlen(ptr);

      if(strstr(setups[i].wname,"m2_precision")!=NULL)

        precision=atoi(p);

      if(precision<0) precision=-precision;

    }

    return ptr;

}

int main(int argc,char *argv[])

{

    prepare1();

    run();

    return 0;

}