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 octave to wims */

/* 'Permission denied' error generated by Octave: it is trying to

 * write to .octave.history even with the -H switch. */

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

#include "common.h"

/* limit of input/output file sizes */

int fsizelim=131072;

/* This string tells octave to exit. */

char *quitstring="\nquit\n";

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

char *stringprinter="\"%s\"\n";

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

#define homepage "http://www.gnu.org/software/octave/"

/* String to search for answers */

char ans_str[]="ans =";

char *nameofcmd="octave -Hf --no-line-editing";

int precision=9;

char header[]="split_long_rows(0)\n\

page_screen_output(0)\n\

sh=@sinh\n\

ch=@cosh\n\

th=@tanh\n\

ln=@log\n\

lg=@log10\n\

sgn=@sign\n\

tg=@tan\n\

cotan=@cot\n\

ctg=@cot\n\

arcsin=@asin\n\

arccos=@acos\n\

arctan=@atan\n\

arctg=@atan\n\

argsh=@asinh\n\

argch=@acosh\n\

argth=@atanh\n\

Argsh=@asinh\n\

Argch=@acosh\n\

Argth=@atanh\n\

rint=@round\n\

PI=pi\n\

Pi=pi\n\

";

struct {

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

} setups[]={

      {"w_octave_precision", "9", "output_precision"}

};

/* names which are not allowed */

char *illegal[]={

      "system","fopen","fclose","readdir","popen","mkdir","rmdir",

      "dir","ls","cd","chdir","more","save","load","diary",

      "fork","putenv","graw","eval",

      "scanf","exec","unlink","umask","lstat","stat","rename",

      "glob","tilde_expand","pclose","popen2","waitpid",

};

int illegal_no=(sizeof(illegal)/sizeof(illegal[0]));

/* name parts which are not allowed */

char *illpart[]={

    "file", "debug", "plot"

};

int illpart_no=(sizeof(illpart)/sizeof(illpart[0]));

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

char *progname="octave";

/* check for security violations in command string */

void check_parm(char *p)

{

    char *pp, *s;

 /* Underscore replacement */

    for(pp=strchr(p,'_'); pp!=NULL; pp=strchr(pp+1,'_')) {

      if(pp==p || !isalnum(*(pp-1))) *pp='K';

    }

    for(s=p;*s;s++) *s=tolower(*s);

    find_illegal(p);

}

/* process and print octave output */

void output(char *p)

{

    int i,n;

    char *pp, *pe, *pt;

    pp=strchr(p,'\n');

    for(pp++; *pp; pp=pe) {

      pe=strchr(pp,'\n'); if(pe) *pe++=0; else pe=pp+strlen(pp);

      if(memcmp(pp,ans_str,strlen(ans_str))==0) pp+=strlen(ans_str);

      n=strlen(pp); if(n==0) {

          puts(""); continue;

      }

/* make every output one-line */

      for(i=0;i<n;i++) {

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

      }

/* strip leading and trailing spaces */

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

      pt=pp+strlen(pp)-1;

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

      strip_zeros(pp);

      puts(pp);

    }

}

void about(void)

{

    char *p;

    prepabout("version\nquit\n",outputfname,NULL);

    if(readabout()>0) {

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

      p=aboutbuf;while(*p && *p!='=') p++;

      p++;

      strip_trailing_spaces2(p);

      printf("<a target=\"wims_external\" href=\"%s\">Octave%s</a>",homepage,p);

    }

}

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

{

    int i;

    char *p, *pp;

    if(wseed!= NULL) {

      int ws=atoi(wseed)&(0x7FFFFFFF);

      snprintf(ptr,end-ptr,"\nrand(\"state\",%u);\nrand(\"state\",%u);randn(\"state\",%u);rande(\"state\",%u);randg(\"state\",%u);randp(\"state\",%u);",ws,ws,ws,ws,ws,ws);

      ptr+=strlen(ptr);

    }

    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,"octave_precision")!=NULL)

        precision=atoi(p);

      if(precision<0) precision=-precision;

    }

    return ptr;

}

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

{

    prepare1();

    run();

    return 0;

}