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.

 */

#include "../Lib/libwims.h"

#include "sp.h"

void (*sp_error)(char *s);

char *setpre="";

void sp_asis(char *p, int ptype)

{

  fprintf(outf,"%stmp%d=!nosubst %s\n\n",setpre,prepcnt,p);

}

void sp_evalue(char *p, int ptype)

{

  char *p1, *p2, *pe;

  p1=strparchr(p,',');

  if(p1==NULL) {

    fprintf(outf,"%stmp%d=%s\n\n",setpre,prepcnt,p);

    return;

  }

  *p1++=0; fprintf(outf,"%sevaltmp=%s\n\n", setpre,p);

  for(; p1!=NULL; p1=p2){

    p1=find_word_start(p1);

    p2=strparchr(p1,',');

    if(p2!=NULL) *p2++=0;

    pe=strchr(p1,'=');

    if(pe==NULL) continue;

    *pe++=0; *find_word_end(p1)=0;

    if(*p1==0) continue;

    fprintf(outf,"%sevaltmp=!mathsubst %s=(%s) in $evaltmp\n",

          setpre,p1,pe);

  }

  fprintf(outf,"%stmp%d=($evaltmp)\n",setpre,prepcnt);

}

/* simple roots.*/

void sp_solve(char *p, int ptype)

{

  fprintf(outf,"%stmp=!replace internal .. by , in %s \n\n\

!distribute items $tmp into tmp1,tmp2,tmp3\n\

%stmp2=!replace internal = by , in $tmp2\n\

!distribute items $tmp2 into tmp4,tmp5\n\

%stmp%d=!solve $tmp1 for $tmp4 = $tmp5 to $tmp3 \n",

          setpre,p,setpre,setpre,prepcnt);

}

/* use maxima to do formal derivation. */

void sp_diff(char *p, int ptype)

{

  fprintf(outf,"%stmp=!translate ;\";': to $     $ in %s\n\n\

%stmp=!lower $tmp\n\

%stmp%d=!exec maxima diff($tmp);\n",

          setpre,p,setpre,setpre,prepcnt);

}

/* use pari to compute matrix determinant. */

void sp_det(char *p, int ptype)

{

  fprintf(outf,"%stmp=!translate $      $ to ; in %s\n\n\

%stmp%d=!exec pari matdet([$tmp])\n",

          setpre,p,setpre,prepcnt);

}

/* use maxima to do formal integration,

 * but pari for numerical integration. */

void sp_int(char *p, int ptype)

{

  char *s;

  if((s=strchr(p,'='))!=NULL) *s=',';

  if((s=strstr(p,".."))!=NULL) {*s=','; *(s+1)=' ';}

  fprintf(outf,"%stmp=!translate ;\";': to $     $ in %s \n\

%stmp=!lower $tmp\n\

!readproc slib/function/integrate $tmp\n\

%stmp%d=$slib_out\n",

          setpre,p,setpre,setpre,prepcnt);

}

void sp_htmlmath(char *p, int ptype)

{

  fprintf(outf,"%stmp%d=!htmlmath %s\n\n",setpre,prepcnt,p);

}

void sp_teximg(char *p, int ptype)

{

  fprintf(outf,"!readproc %s/teximg.phtml %s \n\

%stmp%d=$ins_url\n", primitive_dir, p, setpre,prepcnt);

}

void sp_texmath(char *p, int ptype)

{

  fprintf(outf,"%stmp%d=!texmath %s\n\n",setpre,prepcnt,p);

}

void sp_maxima(char *p, int ptype)

{

  fprintf(outf,"%st_=!replace internal \\( by ( in %s\n\

%stmp%d=!exec maxima $t_\n\n",setpre,p,setpre,prepcnt);

}

void sp_yacas(char *p, int ptype)

{

  fprintf(outf,"%st_=!replace internal \\( by ( in %s\n\

%stmp%d=!exec yacas $t_\n\n",setpre,p,setpre,prepcnt);

}

void sp_pari(char *p, int ptype)

{

  fprintf(outf,"%st_=!replace internal \\( by ( in %s\n\

%stmp%d=!exec pari $t_\n\n",setpre,p,setpre,prepcnt);

}

void sp_simplify(char *p, int ptype)

{

  fprintf(outf,"%stmp=!translate \";': to $     $ in %s\n\n\

%stmp=!lower $tmp\n\

%stmp%d=!exec maxima fullratsimp($tmp);\n",

          setpre,p,setpre,setpre,prepcnt);

}

void sp_slib(char *p, int ptype)

{

  char *p2;

  p=find_word_start(p);

  for(p2=p;*p2!=0 && !isspace(*p2) && *p2!=',' && *p2!=';';p2++);

  if(*p2!=0 && !isspace(*p2)) *p2=' ';

  fprintf(outf,"!readproc slib/%s \n\

%stmp%d=$slib_out\n",p,setpre,prepcnt);

}

void sp_draw(char *p, int ptype)

{

  char *p2;

  p2=strchr(p,' '); if(p2==NULL) p2=strchr(p,'\n');

  if(p2==NULL) return;

  *p2++=0;

  fprintf(outf,"!readproc %s/draw.phtml %s \\\n%s \n\

%stmp%d=$ins_url\n", primitive_dir, p, p2, setpre,prepcnt);

}

void sp_canvasdraw(char *p, int ptype)

{

  char *p2;

  p2=strchr(p,' '); if(p2==NULL) p2=strchr(p,'\n');

  if(p2==NULL) return;

  *p2++=0;

  fprintf(outf,"!readproc %s/canvasdraw.phtml %s \\\n%s \n\

%stmp%d=$canvasdraw_out\n", primitive_dir, p, p2, setpre,prepcnt);

}

void sp_shuffle(char *p, int ptype)

{

  fprintf(outf,"%stmp%d=!shuffle %s\n\n",setpre,prepcnt,p);

}

void sp_positionof(char *p, int ptype)

{

  char *p1;

  p1=strparchr(p,','); if(p1==NULL) {

    fprintf(outf,"%stmp%d=%s\n\n",setpre,prepcnt,p); return;

  }

  *p1++=0;

  fprintf(outf,"%stmp%d=!positionof item %s in %s\n\n",setpre,prepcnt,p, p1);

}

void sp_random(char *p, int ptype)

{

  char *pr, *p2, buf[MAX_LINELEN+1];

  snprintf(buf,sizeof(buf),"%s",p);

  for(p2=buf; *p2 && p2-buf<MAX_LINELEN; p2++) {

    if(*p2=='(') {

      p2=find_matching(p2+1,')'); continue;

    }

    if(*p2==',' || (*p2=='.' && *(p2+1)=='.')) break;

  }

  if(*p2==',') pr="randitem";

  else {

    if(*p2=='.') {

      *p2=','; *(p2+1)=' ';

    }

    if(ptype==pt_int) pr="randint"; else pr="random";

  }

  fprintf(outf,"%stmp%d=!%s %s\n\n",setpre,prepcnt,pr,buf);

}

void sp_pickone(char *p, int ptype)

{

  sp_random(p,pt_int);

}

void sp_item(char *p, int ptype)

{

  char *pp, *p2, buf[MAX_LINELEN+1];

  pp=strparchr(p,',');

  if(pp==NULL) pp=""; else *pp++=0;

  strncpy(buf,p,MAX_LINELEN);buf[MAX_LINELEN]=0;

  strip_enclosing_par(buf);

  if((p2=strstr(buf,".."))!=NULL) string_modify(buf,p2,p2+2," to ");

  fprintf(outf,"%stmp%d=!item %s of %s\n\n",setpre,prepcnt,buf,pp);

}

void sp_items(char *p, int ptype)

{

  fprintf(outf,"%stmp%d=!itemcnt %s\n\n",setpre,prepcnt,p);

}

void sp_randitem(char *p, int ptype)

{

  fprintf(outf,"%stmp=!nonempty items %s\n\n\

%stmp%d=!randitem $tmp\n",setpre,p,setpre,prepcnt);

}

void sp_column(char *p, int ptype)

{

  char *pp, *p2, buf[MAX_LINELEN+1];

  pp=strparchr(p,',');

  if(pp==NULL) pp=""; else *pp++=0;

  strncpy(buf,p,MAX_LINELEN);buf[MAX_LINELEN]=0;

  strip_enclosing_par(buf);

  if((p2=strstr(buf,".."))!=NULL) string_modify(buf,p2,p2+2," to ");

  fprintf(outf,"%stmp=!translate internal $     $ to ; in %s\n\n\

%stmp=!column %s of $tmp\n\

%stmp%d=!translate internal $\\\n$ to ; in $tmp\n",

          setpre,pp,setpre, buf, setpre, prepcnt);

}

void sp_row(char *p, int ptype)

{

  char *pp, *p2, buf[MAX_LINELEN+1];

  pp=strparchr(p,',');

  if(pp==NULL) pp=""; else *pp++=0;

  strncpy(buf,p,MAX_LINELEN);buf[MAX_LINELEN]=0;

  strip_enclosing_par(buf);

  fprintf(outf,"%stmp=!translate internal $     $ to ; in %s\n\n",

        setpre,pp);

  if(strstr(buf,"column")!=NULL) {

    fprintf(outf,"%stmp%d=!select $tmp where %s\n\n",setpre,prepcnt,buf);

    return;

  }

  while((p2=strstr(buf,".."))!=NULL)

    string_modify(buf,p2,p2+2," to ");

  fprintf(outf,"%stmp=!row %s of $tmp\n\

%stmp%d=!translate internal $\\\n$ to ; in $tmp\n",

          setpre, buf, setpre, prepcnt);

}

void sp_rows(char *p, int ptype)

{

  fprintf(outf,"%stmp=!translate internal $     $ to ; in %s\n\n\

%stmp%d=!rowcnt $tmp\n",setpre,p,setpre,prepcnt);

}

void sp_randrow(char *p, int ptype)

{

  fprintf(outf,"%stmp=!translate internal $     $ to ; in %s\n\n\

%stmp=!nonempty rows $tmp\n\

%stmp=!randrow $tmp\n\

%stmp%d=!translate internal $\\\n$ to ; in $tmp\n",

          setpre,p,setpre,setpre,setpre,prepcnt);

}

void sp_mathexp_cut(char *p, int ptype)

{

  char *p2;

  p2=find_word_end(find_word_start(p)); if(isspace(*p2)) *p2++=0;

  p2=find_word_start(p2);

  fprintf(outf,"%stmp%d=!exec mathexp cut %s\\\n%s\n\n",

        setpre,prepcnt,p,p2);

}

void sp_wims(char *p, int ptype)

{

  p=find_word_start(p);

  if(!isalpha(*p) || strncasecmp(p,"ins",3)==0)

    fprintf(outf,"%stmp%d=%s\n\n",setpre,prepcnt,p);

  else

    fprintf(outf,"%stmp%d=!%s\n\n",setpre,prepcnt,p);

}

struct specialfn specialfn[]={

  {"asis",  sp_asis},

  {"canvasdraw", sp_canvasdraw},

  {"column", sp_column},

  {"deriv",  sp_diff},

  {"derivative", sp_diff},

  {"det",  sp_det},

  {"determinant", sp_det},

  {"diff",  sp_diff},

  {"draw",  sp_draw},

  {"evaluate", sp_evalue},

  {"evalue", sp_evalue},

  {"htmlmath", sp_htmlmath},

  {"int",  sp_int},

  {"integral", sp_int},

  {"integrate", sp_int},

  {"item",  sp_item},

  {"items",  sp_items},

  {"mathexp_cut", sp_mathexp_cut},

  {"maxima", sp_maxima},

  {"pari",  sp_pari},

  {"pickone", sp_pickone},

  {"position", sp_positionof},

  {"positionof", sp_positionof},

  {"randint", sp_pickone},

  {"randitem", sp_randitem},

  {"random", sp_random},

  {"randomitem", sp_randitem},

  {"randomrow", sp_randrow},

  {"randrow", sp_randrow},

  {"row",  sp_row},

  {"rows",  sp_rows},

  {"shuffle", sp_shuffle},

  {"simplify", sp_simplify},

  {"slib",  sp_slib},

  {"solve",  sp_solve},

  {"teximg", sp_teximg},

  {"texmath", sp_texmath},

  {"wims",  sp_wims},

  {"yacas", sp_yacas}

};

int specialfn_no=(sizeof(specialfn)/sizeof(specialfn[0]));

/* This routine treats special functions */

void parmprep(char *p,int ptype)

{

  char *pp, *p2, *pn, namebuf[32], buf[MAX_LINELEN+1];

  int i;

  while((pp=strchr(p,'\n'))!=NULL) *pp='        ';

  for(pp=p;*pp && pp-p<MAX_LINELEN;pp++) {

/* function names */

    if(isalpha(*pp)) {

      for(i=0;i<30 && (isalnum(pp[i]) || pp[i]=='_');i++) namebuf[i]=pp[i];

      namebuf[i]=0; p2=find_word_start(pp+i);

      if((pp>p && isalnum(*(pp-1))) || *p2!='(') {

/* if(*p2=='\\' && *(p2+1)=='(') ovlstrcpy(p2,p2+1); */

        pp=p2-1; continue;

      }

      pn=pp; pp=p2+1; p2=find_matching(pp,')');

      if(p2==NULL) {

        sp_error("unmatched_parentheses");

        pp=p2; continue;

      }

      i=search_list(specialfn,specialfn_no,sizeof(specialfn[0]),namebuf);

      if(i<0) {

        pp--; continue;

      }

      *p2=0;

      snprintf(buf,sizeof(buf),"%s",pp);

      if(specialfn[i].processor!=sp_asis) parmprep(buf,ptype);

      specialfn[i].processor(buf,ptype);

      string_modify(p, pn, p2+1, "$(tmp%d)",prepcnt); prepcnt++;

      pp=pn+6;

    }

  }

}