Free Hero Mesh

  if(m&KMOD_CTRL) i|=MOD_CTRL;
  if(m&KMOD_SHIFT) i|=MOD_SHIFT;
  if(m&KMOD_ALT) i|=MOD_ALT;
  if(m&KMOD_META) i|=MOD_META;
  if((m&KMOD_NUM) && kb->m[i|MOD_NUMLOCK].cmd) i|=MOD_NUMLOCK;
  return kb->m+i;
}

static void sql_interactive(void) {
  const char*t=screen_prompt("<SQL>");
  const char*u;
  SDL_Rect r;
  SDL_Event ev;
  sqlite3_stmt*st=0;
  int i,j,y;
  int k=0;
  if(!t) return;
  if(sqlite3_prepare_v2(userdb,t,-1,&st,0)) screen_message(sqlite3_errmsg(userdb));
  if(!st) return;
  redraw:
  r.x=r.y=0;
  r.w=screen->w;
  r.h=screen->h;
  SDL_FillRect(screen,&r,0xF0);
  SDL_LockSurface(screen);
  if(!k) draw_text(0,0,t,0xF8,0xFB);
  y=8-k;
  while((i=sqlite3_step(st))==SQLITE_ROW) {
    if(y>=0) {
      if(y>screen->h-8) break;
      for(i=j=0;i<sqlite3_data_count(st);i++) {
        u=sqlite3_column_text(st,i);
        draw_text(j,y,"\xB3",0xF0,0xF9),j+=8;
        if(u) draw_text(j,y,u,0xF0,0xF7),j+=strlen(u)*8; else draw_text(j,y,"\x04",0xF0,0xF4),j+=8;
      }
    }
    y+=8;
  }
  if(y>=0 && y<=screen->h-8) {
    if(i==SQLITE_DONE) draw_text(0,y,"--END--",0xF8,0xFA); else draw_text(0,y,sqlite3_errmsg(userdb),0xF8,0xFC);
  }
  SDL_UnlockSurface(screen);
  sqlite3_reset(st);
  SDL_Flip(screen);
  while(SDL_WaitEvent(&ev)) switch(ev.type) {
    case SDL_KEYDOWN:
      switch(ev.key.keysym.sym) {
        case SDLK_ESCAPE: case SDLK_RETURN: case SDLK_KP_ENTER: goto done;
        case SDLK_UP: k-=8; if(k<0) k=0; break;
        case SDLK_DOWN: k+=8; break;
        case SDLK_HOME: k=0; break;
        case SDLK_PAGEUP: k-=screen->h; if(k<0) k=0; break;
        case SDLK_PAGEDOWN: k+=screen->h; break;
      }
      goto redraw;
    case SDL_VIDEOEXPOSE:
      goto redraw;
    case SDL_QUIT:
      SDL_PushEvent(&ev);
      goto done;
  }
  done:
  sqlite3_finalize(st);
}

int exec_key_binding(SDL_Event*ev,int editing,int x,int y,int(*cb)(int prev,int cmd,int number,int argc,sqlite3_stmt*args,void*aux),void*aux) {
  const UserCommand*cmd=find_key_binding(ev,editing);
  int prev=0;
  int i,j,k;
  const char*name;
  if(ev->type==SDL_MOUSEBUTTONDOWN && !x && !y && ev->button.x>=left_margin) {

          }
        }
      }
      while((i=sqlite3_step(cmd->stmt))==SQLITE_ROW) {
        if(i=sqlite3_data_count(cmd->stmt)) {
          j=(i>1&&sqlite3_column_type(cmd->stmt,1)!=SQLITE_NULL)?sqlite3_column_int(cmd->stmt,1):y*64+x;
          if((name=sqlite3_column_text(cmd->stmt,0)) && *name) {
            if(name[0]==':') {
              switch(name[1]) {
                case '!': if(i>1) i=system(sqlite3_column_text(cmd->stmt,1)?:(const unsigned char*)"# "); break;
                case ';': i=SQLITE_DONE; goto done;
                case '?': if(i>1) puts(sqlite3_column_text(cmd->stmt,1)?:(const unsigned char*)"(null)"); break;
                case 'm': if(i>1) screen_message(sqlite3_column_text(cmd->stmt,1)?:(const unsigned char*)"(null)"); break;
                case 'x': sql_interactive(); break;
              }
            } else {
              k=name[0]*'\1\0'+name[1]*'\0\1';
              while(i && sqlite3_column_type(cmd->stmt,i-1)==SQLITE_NULL) i--;
              prev=cb(prev,k,j,i,cmd->stmt,aux);
              if(prev<0) {
                i=SQLITE_DONE;
                goto done;
              }
            }
          }
        }
      }
      done:
      sqlite3_reset(cmd->stmt);
      sqlite3_clear_bindings(cmd->stmt);
      if(i!=SQLITE_DONE) fprintf(stderr,"SQL error in key binding: %s\n",sqlite3_errmsg(userdb)?:"unknown error");
      return prev;
    default:
      fprintf(stderr,"Confusion in exec_key_binding()\n");
      return 0;
  }
}