Initial import of 5.0 source code with minor changes to use termios on Linux.

1 files changed, 1343 insertions, 0 deletions

diff --git a/ent.c b/ent.c
new file mode 100644
index 0000000..e65f73e
--- /dev/null
+++ b/ent.c
@@ -0,0 +1,1343 @@
+/*Copyright (c) Anker Berg-Sonne, 1985,1986,1987*/
+#include "proto.h"
+
+regexp *Exp=NULL;
+
+void Fast regerror(char *S)
+{Error(2,S);
+}
+
+extern long My_Col;
+
+#if ! (defined(UNIX) | defined(MPE))
+int Fast Chk_CRLF_F()
+{if (End_Pos>Current->Bufsize||End_Pos<2)
+  return 0;
+ B_Goto(Current,End_Pos-1);
+ if (B_Get(Current)=='\r'&&B_Get(Current)=='\n')
+ {End_Pos++;
+  End_Line++;
+  return 1;
+ }
+ return 0;
+}
+
+int Fast Chk_CRLF_FB()
+{if (End_Pos>Current->Bufsize||End_Pos<2)
+  return 0;
+ B_Goto(Current,End_Pos-1);
+ if (B_Get(Current)=='\r'&&B_Get(Current)=='\n')
+ {End_Pos--;
+  return 1;
+ }
+ return 0;
+}
+
+int Fast Chk_CRLF_B()
+{if (Beg_Pos>Current->Bufsize||Beg_Pos<2)
+  return 0;
+ B_Goto(Current,Beg_Pos-1);
+ if (B_Get(Current)=='\r'&&B_Get(Current)=='\n')
+ {Beg_Pos--;
+  return 1;
+ }
+ return 0;
+}
+
+int Fast Chk_CRLF_BF()
+{if (Beg_Pos>Current->Bufsize||Beg_Pos<2)
+  return 0;
+ B_Goto(Current,Beg_Pos-1);
+ if (B_Get(Current)=='\r'&&B_Get(Current)=='\n')
+ {Beg_Pos++;
+  return 1;
+ }
+ return 0;
+}
+#endif
+
+void Fast A_Char()
+{int Save_Free;
+ Save_Free=Cursor_Free;
+ Cursor_Free=0;
+ Char();
+ Cursor_Free=Save_Free;
+}
+
+void Fast Char()
+/*Goes Ent_Count chars in Ent_Direction*/
+{Set_Region();
+ if (Cursor_Free)
+ {B_Goto(Current,My_Pos);
+  if (Ent_Direction)
+  {while (Ent_Count--)
+   {if (My_Pos==End_Region)
+    {Put_A_Char(' ');
+     Set_Changes();
+     End_Region++;
+    } else
+    if (Chk_EL(Current,B_Get(Current)))
+    {B_B_Get(Current);
+     Put_A_Char(' ');
+     Set_Changes();
+     End_Region++;
+    }
+    End_Pos++;
+   }
+  } else
+  {while (Ent_Count--)
+   {if (My_Pos==Beg_Region)
+     ; else
+    if (B_B_Get(Current)=='\n')
+    {B_Get(Current);
+    } else
+     Beg_Pos--;
+   }
+  }
+ } else
+ {if (Ent_Direction)
+  {if ((End_Pos=My_Pos+Ent_Count)>End_Region)
+   {End_Error();
+    Err_Flag=0;
+    Toofar=1;
+    End_Pos=End_Region;
+   }
+   Cnt_F_Lines(End_Pos);
+#if ! (defined(UNIX) | defined(MPE))
+   Chk_CRLF_F();
+#endif
+  } else
+  {if ((Beg_Pos=My_Pos-Ent_Count)<Beg_Region)
+   {Beg_Error();
+    Err_Flag=0;
+    Toofar=1;
+    Beg_Pos=Beg_Region;
+   }
+   Cnt_B_Lines(Beg_Pos);
+#if ! (defined(UNIX) | defined(MPE))
+   Chk_CRLF_B();
+#endif
+  }
+ }
+ /*Diag("Char:Beg_Line=%D,End_Line=%D,Beg_Pos=%D,End_Pos=%D",
+  Beg_Line,End_Line,Beg_Pos,End_Pos);*/
+}
+
+void Fast Abs_Char()
+{if (Ent_Count>My_Pos)
+ {Ent_Count-=My_Pos;
+  Ent_Direction=1;
+ } else
+ {Ent_Count=My_Pos-Ent_Count;
+  Ent_Direction=0;
+ }
+ A_Char();
+}
+
+void Fast Vertical()
+/*Vertical movement*/
+{register int C;
+ static long V_Col, T_Col, V_Line;
+ long Temp_Col, Sav_Col;
+ Set_Region();
+ B_Goto(Current,My_Pos);
+ /*Diag("Vertical:My_Pos=%D,Ent_Count=%d,Ent_Direction=%d",My_Pos,Ent_Count,
+  Ent_Direction);*/
+ if (This_Line!=V_Line||My_Col!=V_Col)
+  T_Col=My_Col;
+ if (Ent_Direction)
+ {while (Ent_Count--&&!Check_CC())
+  {if (!B_Search(Current,'\n',End_Region))
+   {End_Error();
+    return;
+   }
+   End_Pos=Current->Pos;
+   End_Line++;
+  }
+  Sav_Col=My_Col;
+  My_Col=1;
+  while (My_Col<T_Col)
+  {if (End_Pos>=End_Region)
+    break;
+   End_Pos++;
+   if (Chk_EL(Current,C=B_Get(Current)))
+   {End_Pos--;
+    break;
+   }
+   My_Col+=Char_Rep(C,NULL);
+  }
+  if (Cursor_Free&&My_Col<T_Col)
+  {B_Goto(Current,End_Pos);
+   Set_Changes();
+   while (My_Col<T_Col)
+   {Put_A_Char(' ');
+    End_Pos++;
+    My_Col++;
+   }
+  }
+  Temp_Col=My_Col;
+  My_Col=Sav_Col;
+  V_Line=End_Line;
+ } else
+ {while (Ent_Count--&&!Check_CC())
+  {if (!B_B_Search(Current,'\n',Beg_Region))
+   {Beg_Error();
+    return;
+   }
+   Beg_Pos=Current->Pos;
+   Beg_Line--;
+  }
+  while (Beg_Pos!=Beg_Region)
+  {Beg_Pos--;
+   if ((C=B_B_Get(Current))=='\n')
+   {C=B_Get(Current);
+    Beg_Pos++;
+    break;
+   }
+  }
+  Sav_Col=My_Col;
+  My_Col=1;
+  while (My_Col<T_Col)
+  {if (Beg_Pos>=End_Region)
+    break;
+   Beg_Pos++;
+   if ((C=B_Get(Current))=='\n')
+   {Beg_Pos--;
+    break;
+   }
+   My_Col+=Char_Rep(C,NULL);
+  }
+#if ! (defined(UNIX) | defined(MPE))
+  if (Chk_CRLF_B())
+   My_Col-=Char_Rep('\r',NULL);
+#endif
+  if (Cursor_Free&&T_Col>My_Col)
+  {Set_Changes();
+   B_Goto(Current,Beg_Pos);
+   while (T_Col>My_Col)
+   {Put_A_Char(' ');
+    My_Pos++;
+    End_Region++;
+    Beg_Pos++;
+    End_Pos++;
+    My_Col++;
+   }
+  }
+  Temp_Col=My_Col;
+  My_Col=Sav_Col;
+  V_Line=Beg_Line;
+ }
+ V_Col=Temp_Col;
+ /*Diag("Vertical:Beg_Line=%D,End_Line=%D,Beg_Pos=%D,End_Pos=%D",
+  Beg_Line,End_Line,Beg_Pos,End_Pos);*/
+}
+
+void Fast Line()
+/*Move a line*/
+{Set_Region();
+ if (Ent_Direction)
+ {while (Ent_Count--&&!Check_CC())
+  {if (End_Pos==End_Region)
+   {End_Error();
+    return;
+   }
+   if (!B_Search(Current,'\n',End_Region))
+   {if (!Ent_Count)
+    {End_Pos=Current->Pos;
+     return;
+    }
+    End_Error();
+    return;
+   }
+   End_Pos=Current->Pos;
+   End_Line++;
+  }
+ } else
+ {if (Beg_Pos==Beg_Region)
+  {Beg_Error();
+   return;
+  }
+  if (B_B_Get(Current)=='\n')
+  {if (Ent_Count==0)
+    return;
+   Beg_Line--;
+  }
+  if (Ent_Count==0)
+   Ent_Count++;
+  Beg_Pos--;
+  while (Ent_Count--&&!Check_CC())
+  {if (!B_B_Search(Current,'\n',Beg_Region))
+   {if (Ent_Count)
+    {Beg_Error();
+     return;
+    }
+    Beg_Pos=Beg_Region;
+    break;
+   }
+   if (!Ent_Count)
+    Beg_Pos=Current->Pos+1; else
+    Beg_Line--;
+  }
+ }
+}
+
+void Fast Abs_Line()
+{if (Ent_Count>This_Line)
+ {Ent_Count-=This_Line;
+  Ent_Direction=1;
+ } else
+ {Ent_Count=This_Line-Ent_Count;
+  Ent_Direction=0;
+  if (My_Col!=1)
+   Ent_Count++;
+ }
+ Line();
+}
+
+void Fast Top()
+/*Top of buffer*/
+{Set_Region();
+ Ent_Direction=0;
+ if ((Beg_Pos=Beg_Region)==1)
+  Beg_Line=1; else
+ {Ent_Count=Beg_Region;
+  Abs_Char();
+ }
+}
+
+void Fast Bottom()
+/*Bottom of buffer*/
+{Set_Region();
+ Cnt_F_Lines(End_Pos=End_Region);
+ Ent_Direction=1;
+}
+
+void Fast Find()
+/*Find a given string*/
+{if (!Get_Arg()||Skip)
+  return;
+ Set_Region();
+ if (Com_Arg[0]!=0)
+  Ins_Del(Dl_Pointers[Search_String]);
+ Find_Next();
+}
+
+void Fast Find_Next()
+/*Find next occurrence of string*/
+{Set_Region();
+ while (!Err_Flag&&Ent_Count--&&!Check_CC())
+  Find_This(0);
+}
+
+char Fast Upper_Case(char C)
+/*Converts lower case to upper case*/
+{
+ return (islower(C)||(C>=224&&C<=255)?C-32:C);
+}
+
+char Fast Lower_Case(char C)
+/*Converts upper case to lower case*/
+{
+ return (isupper(C)||(C>=192&&C<=223)?C+32:C);
+}
+
+void Fast Find_This(int First)
+/*Find next occurrence of search string*/
+{int Got_Match;
+ register int Del_C;
+ long Sav_Pos, Nxt_Cr, Got_Pos, *P;
+ char *S;
+ int I, No_Bline;
+ if ((P=Dl_Pointers[Search_String])[1]==0)
+  return;
+ if (Reg_Search)
+ {B_Goto(&Del,P[0]);
+  B_Get_N(&Del,Find_Str,(int)P[1]);
+  Find_Str[P[1]]=0;
+  if (Exp!=NULL)
+   free((char*)Exp);
+  if ((Exp=regcomp(Find_Str))==NULL)
+   return;
+  if (Ent_Direction)
+  {if (Current->Pos>=End_Region)
+   {End_Error();
+    return;
+   }
+   B_Goto(Current,My_Pos+(First==0));
+   No_Bline=1;
+   while (Current->Pos<End_Region)
+   {End_Pos=Current->Pos;
+    Find_Str[I=(B_Get_S(Current,Find_Str,512)-1)]=0;
+#if !(defined(UNIX) | defined(MPE))
+    if (Find_Str[I-1]=='\r')
+     Find_Str[I-1]=0;
+#endif
+    if (regexec(Exp,Find_Str,No_Bline))
+    {End_Pos=End_Pos+(Exp->startp[0]-Find_Str);
+     if (End_Pos<End_Region)
+     {B_Goto(Current,Beg_Pos);
+      Cnt_F_Lines(End_Pos);
+     } else
+      End_Error();
+     return;
+    }
+    No_Bline=0;
+   }
+   End_Error();
+  } else
+  {Sav_Pos=Current->Pos;
+   while (Current->Pos>Beg_Region)
+   {B_Goto(Current,Sav_Pos);
+    B_B_Search(Current,'\n',(long)1);
+    if (Current->Pos==1)
+    {Beg_Error();
+     return;
+    }
+    Sav_Pos=Current->Pos;
+    B_Get(Current);
+    Find_Str[I=(B_Get_S(Current,Find_Str,512)-1)]=0;
+#if !(defined(UNIX) | defined(MPE))
+    if (Find_Str[I-1]=='\r')
+     Find_Str[I-1]=0;
+#endif
+    S=Find_Str;
+    if (regexec(Exp,S,0)&&Sav_Pos+(Exp->startp[0]-Find_Str+1)<End_Pos)
+    {S=Exp->startp[0];
+     while(*S!=0&&regexec(Exp,S+1,0)&&Sav_Pos+(Exp->startp[0]-Find_Str+1)
+      <End_Pos)
+      S=Exp->startp[0];
+     Beg_Pos=Sav_Pos+(S-Find_Str+1);
+     if (Beg_Pos!=End_Pos)
+     {if (Beg_Pos<Beg_Region)
+      {Beg_Error();
+       return;
+      }
+      B_Goto(Current,My_Pos);
+      Cnt_B_Lines(Beg_Pos);
+      return;
+     }
+    }
+   }
+   Beg_Error();
+  }
+ } else
+ {B_Goto(&Del,P[0]);
+  Del_C=B_Get(&Del);
+  if (Ent_Direction)
+  {B_Goto(Current,End_Pos);
+   if (End_Pos>=End_Region)
+   {End_Error();
+    return;
+   }
+   if (First==0)
+   {End_Pos++;
+    if (B_Get(Current)=='\n')
+     End_Line++;
+   }
+   Nxt_Cr=0;
+   while (1)
+   {Sav_Pos=Current->Pos;
+    Got_Pos=0;
+    if (Nxt_Cr<=Current->Pos)
+    {B_Search(Current,'\n',End_Region);
+     Nxt_Cr=Current->Pos;
+    }
+    B_Goto(Current,Sav_Pos);
+    if (B_Search(Current,(char)Del_C,Nxt_Cr))
+     Got_Pos=Current->Pos;
+    if (!Case_Sensitive&&(islower(Del_C)||(Del_C>=224&&Del_C<=255)))
+    {B_Goto(Current,Sav_Pos);
+     if (B_Search(Current,Upper_Case((char)Del_C),Nxt_Cr))
+      if (Got_Pos!=0)
+      {if (Current->Pos<Got_Pos)
+        Got_Pos=Current->Pos;
+      } else
+       Got_Pos=Current->Pos;
+    }
+    if (!Case_Sensitive&&(isupper(Del_C)||(Del_C>=192&&Del_C<=223)))
+    {B_Goto(Current,Sav_Pos);
+     if (B_Search(Current,Lower_Case((char)Del_C),Nxt_Cr))
+      if (Got_Pos!=0)
+      {if (Current->Pos<Got_Pos)
+        Got_Pos=Current->Pos;
+      } else
+       Got_Pos=Current->Pos;
+    }
+    if (Got_Pos!=0)
+    {End_Pos=Got_Pos;
+     Got_Match=1;
+     B_Goto(Current,Got_Pos);
+     Sav_Pos=Got_Pos-1;
+     while (1)
+     {if (Got_Match==P[1])
+      {End_Pos=Current->Pos;
+#if ! (defined(UNIX) | defined(MPE))
+       Chk_CRLF_F();
+#endif
+       Other_Pos=End_Pos;
+       End_Pos=Sav_Pos;
+#if ! (defined(UNIX) | defined(MPE))
+       Chk_CRLF_F();
+#endif
+       return;
+      }
+      Del_C=Case_Sensitive?B_Get(&Del):Upper_Case((char)B_Get(&Del));
+      if (End_Pos>=End_Region)
+      {End_Error();
+       return;
+      }
+      End_Pos++;
+      if ((Case_Sensitive?B_Get(Current):Upper_Case((char)B_Get(Current)))==
+       Del_C)
+       Got_Match++; else
+      {B_Goto(Current,Sav_Pos);
+       End_Pos=Sav_Pos;
+       B_Get(Current);
+       End_Pos++;
+       B_Goto(&Del,P[0]);
+       Del_C=Case_Sensitive?B_Get(&Del):Upper_Case((char)B_Get(&Del));
+       break;
+      }
+     }
+     if (Del_C=='\n')
+      End_Line++;
+    } else
+    if (Nxt_Cr<End_Region)
+    {B_Goto(Current,Nxt_Cr);
+     End_Line++;
+    } else
+    {End_Error();
+     break;
+    }
+   }
+#if ! (defined(UNIX) | defined(MPE))
+   Chk_CRLF_F();
+#endif
+  } else
+  {B_Goto(Current,First&&Beg_Pos!=End_Region?Beg_Pos+1:Beg_Pos);
+   Sav_Pos=Current->Pos;
+   if (My_Pos==Beg_Region)
+   {Beg_Error();
+    return;
+   }
+   Sav_Pos=Current->Pos;
+   if (My_Col==1)
+   {Beg_Line--;
+    B_B_Get(Current);
+   }
+   Nxt_Cr=B_B_Search(Current,'\n',Beg_Region)?Current->Pos+1:Beg_Region;
+   B_Goto(Current,Sav_Pos);
+   while (1)
+   {Sav_Pos=Current->Pos;
+    Got_Pos=0;
+    if (Nxt_Cr==Current->Pos)
+    {B_Goto(Current,Nxt_Cr-1);
+     Nxt_Cr=B_B_Search(Current,'\n',Beg_Region)?Current->Pos+1:Beg_Region;
+     Beg_Line--;
+     B_Goto(Current,Sav_Pos);
+    }
+    if (B_B_Search(Current,(char)Del_C,Nxt_Cr))
+     Got_Pos=Current->Pos;
+    if (!Case_Sensitive&&(islower(Del_C)||(Del_C>=224&&Del_C<=255)))
+    {B_Goto(Current,Sav_Pos);
+     if (B_B_Search(Current,Upper_Case((char)Del_C),Nxt_Cr))
+      if (Got_Pos!=0)
+      {if (Current->Pos>Got_Pos)
+        Got_Pos=Current->Pos;
+      } else
+       Got_Pos=Current->Pos;
+    }
+    if (!Case_Sensitive&&(isupper(Del_C)||(Del_C>=192&&Del_C<=223)))
+    {B_Goto(Current,Sav_Pos);
+     if (B_B_Search(Current,Lower_Case((char)Del_C),Nxt_Cr))
+      if (Got_Pos!=0)
+      {if (Current->Pos>Got_Pos)
+        Got_Pos=Current->Pos;
+      } else
+       Got_Pos=Current->Pos;
+    }
+    if (Got_Pos!=0)
+    {Got_Match=1;
+     B_Goto(Current,Got_Pos);
+     Sav_Pos=Got_Pos;
+     B_Get(Current);
+     Beg_Pos=Got_Pos;
+     while (1)
+     {if (Got_Match==P[1])
+      {Beg_Pos=Current->Pos;
+#if ! (defined(UNIX) | defined(MPE))
+       Chk_CRLF_B();
+#endif
+       Other_Pos=Beg_Pos;
+       Beg_Pos=Sav_Pos;
+#if ! (defined(UNIX) | defined(MPE))
+       Chk_CRLF_B();
+#endif
+       return;
+      }
+      Del_C=Case_Sensitive?B_Get(&Del):Upper_Case((char)B_Get(&Del));
+      if (Beg_Pos>=End_Region)
+      {End_Error();
+       return;
+      }
+      Beg_Pos++;
+      if ((Case_Sensitive?B_Get(Current):Upper_Case((char)B_Get(Current)))==
+       Del_C)
+       Got_Match++; else
+      {B_Goto(Current,Sav_Pos+1);
+       Beg_Pos=Sav_Pos+1;
+       B_B_Get(Current);
+       Beg_Pos--;
+       B_Goto(&Del,P[0]);
+       Del_C=Case_Sensitive?B_Get(&Del):Upper_Case((char)B_Get(&Del));
+       break;
+      }
+     }
+    } else
+    if (Nxt_Cr>Beg_Region)
+     B_Goto(Current,Nxt_Cr); else
+    {Beg_Error();
+     break;
+    }
+   }
+#if ! (defined(UNIX) | defined(MPE))
+   Chk_CRLF_B();
+#endif
+  }
+ }
+}
+
+void Fast Sel_Range()
+/*The select range*/
+{register long Point;
+ Set_Region();
+ if ((Point=Points[0])==0)
+ {if (Lst_Cmd==C_Movecursor&&Old_E_Type==E_Find)
+   Point=My_Pos+Dl_Pointers[Search_String][1]; else
+   {Error(3,No_Sel_Txt);
+    return;
+   }
+ }
+ if (E_Type==E_Paste)
+  Points[0]=0;
+ Cur_Attributes=0;
+ B_Goto(Current,My_Pos);
+ if (Point>My_Pos)
+ {if (Point>End_Region)
+   Point=End_Region;
+  Cnt_F_Lines(Point);
+  End_Pos=Point;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_F();
+#endif
+  Ent_Direction=1;
+ } else
+ {if (Point<Beg_Region)
+   Point=Beg_Region;
+  Cnt_B_Lines(Point);
+  Beg_Pos=Point;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_B();
+#endif
+  Ent_Direction=0;
+ }
+}
+
+void Fast Word()
+{while (Ent_Count--&&!Check_CC())
+ {A_Word();
+  if (Err_Flag)
+   return;
+ }
+}
+
+void Fast A_Word()
+/*A word*/
+{register int C;
+ Set_Region();
+ if (Ent_Direction)
+ {if (End_Pos>=End_Region)
+  {End_Error();
+   return;
+  }
+  B_Goto(Current,End_Pos);
+  End_Pos++;
+  if (Chk_EL(Current,C=B_Get(Current)))
+  {End_Line++;
+#if ! (defined(UNIX) | defined(MPE))
+   if (C=='\r')
+   {B_Get(Current);
+    End_Pos++;
+   }
+#endif
+  }
+  if (C==' '||C==9)
+  {while (1)
+   {if (End_Pos>=End_Region)
+     return;
+    End_Pos++;
+    if ((C=B_Get(Current))!=' '&&C!=9)
+     break;
+   }
+   End_Pos--;
+   return;
+  }
+  if (isupper(C)||islower(C)||isdigit(C)||C=='_'||(C>=192&&C<=255))
+  {while (1)
+   {if (End_Pos>=End_Region)
+     return;
+    End_Pos++;
+    if (!isupper(C=B_Get(Current))&&!islower(C)&&!isdigit(C)&&C!='_'&&!(C>=192&&C<=255))
+     break;
+   }
+  } else
+  {if (End_Pos>=End_Region)
+    return;
+   C=B_Get(Current);
+   End_Pos++;
+  }
+  if (C==' '||C==9)
+  {while (1)
+   {if (End_Pos>=End_Region)
+     return;
+    End_Pos++;
+    if ((C=B_Get(Current))!=' '&&C!=9)
+     break;
+   }
+  }
+  End_Pos--;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_F();
+#endif
+ } else
+ {if (Beg_Pos==Beg_Region)
+  {Beg_Error();
+   return;
+  }
+  B_Goto(Current,Beg_Pos);
+  Beg_Pos--;
+  if ((C=B_B_Get(Current))==' '||C==9)
+  {while (1)
+   {if (Beg_Pos==Beg_Region)
+     return;
+    Beg_Pos--;
+    if ((C=B_B_Get(Current))!=' '&&C!=9)
+     break;
+   }
+  }
+  if (isupper(C)||islower(C)||isdigit(C)||C=='_'||(C>=192&&C<=255))
+  {while (1)
+   {if (Beg_Pos==Beg_Region)
+     return;
+    Beg_Pos--;
+    if (!isupper(C=B_B_Get(Current))&&!islower(C)&&!isdigit(C)&&C!='_'&&!(C>=192&&C<=255))
+     break;
+   }
+   Beg_Pos++;
+  } else
+  {if (C=='\n')
+    Beg_Line--;
+  }
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_B();
+#endif
+ }
+}
+
+void Fast Get_Mark()
+/*Go to a set mark*/
+{register long Point;
+ Set_Region();
+ if (Ent_Count>Maxpoints)
+ {Error(3,Illegal_Mark_Txt);
+  return;
+ }
+ if ((Point=Points[Ent_Count])==0)
+ {Error(3,No_Mark_Txt);
+  return;
+ }
+ if (Point>My_Pos)
+ {if (Point>End_Region)
+   Point=End_Region;
+  Ent_Direction=1;
+  Cnt_F_Lines(Point);
+  End_Pos=Point;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_F();
+#endif
+ } else
+ {if (Point<Beg_Region)
+   Point=Beg_Region;
+  Ent_Direction=0;
+  Cnt_B_Lines(Point);
+  Beg_Pos=Point;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_B();
+#endif
+ }
+}
+
+void Fast Next_Mark()
+/*Go to the next mark*/
+{register long Point;
+ Set_Region();
+ Ent_Count=0;
+ {register int I;
+  for (I=1;I<=Maxpoints;I++)
+  {if ((Point=Points[I])!=0)
+   {if (Ent_Direction)
+    {if (Point>My_Pos)
+     {if (Ent_Count==0)
+       Ent_Count=Point; else
+      if (Point<Ent_Count)
+       Ent_Count=Point;
+     }
+    } else
+    {if (Point<My_Pos)
+     {if (Ent_Count==0)
+       Ent_Count=Point; else
+      if (Point>Ent_Count)
+       Ent_Count=Point;
+     }
+    }
+   }
+  }
+ }
+ if ((Point=Ent_Count)==0)
+ {Error(3,Last_Mark_Txt);
+  return;
+ }
+ if (Point>My_Pos)
+ {if (Point>End_Region)
+   Point=End_Region;
+  Ent_Direction=1;
+  Cnt_F_Lines(Point);
+  End_Pos=Point;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_F();
+#endif
+ } else
+ {if (Point<Beg_Region)
+   Point=Beg_Region;
+  Ent_Direction=0;
+  Cnt_B_Lines(Point);
+  Beg_Pos=Point;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_B();
+#endif
+ }
+}
+
+void Fast Line_End()
+{register char C;
+ Set_Region();
+ if (Ent_Direction)
+ {if (My_Pos>=End_Region)
+  {End_Error();
+   return;
+  }
+#if ! (defined(UNIX) | defined(MPE))
+  if ((C=B_Get(Current))=='\r')
+  {if (Current->Pos>=End_Region)
+   {End_Error();
+    return;
+   }
+   C=B_Get(Current);
+  }
+  if (C=='\n')
+#else
+  if ((C=B_Get(Current))=='\n')
+#endif
+  {if (Ent_Count==0)
+    return;
+   End_Line++;
+  }
+  if (Ent_Count==0)
+   Ent_Count++;
+  while (Ent_Count--&&!Check_CC())
+  {if (!B_Search(Current,'\n',End_Region))
+   {if (!Ent_Count)
+     End_Pos=Current->Pos; else
+     End_Error();
+    return;
+   }
+   End_Line++;
+  }
+  End_Line--;
+  End_Pos=Current->Pos-1;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_FB();
+#endif
+ } else
+ {if (My_Pos==Beg_Region)
+  {Beg_Error();
+   return;
+  }
+  while (Ent_Count--&&!Check_CC())
+  {if (!B_B_Search(Current,'\n',Beg_Region))
+   {Beg_Error();
+    return;
+   }
+   Beg_Line--;
+  }
+  Beg_Pos=Current->Pos;
+#if ! (defined(UNIX) | defined(MPE))
+  Chk_CRLF_B();
+#endif
+ }
+}
+
+char Fast Skip_Spaces(char C)
+{if (C==' '||C==9||C==12||C=='\r')
+ while (1)
+ {if (End_Pos>=End_Region)
+   return ' ';
+  End_Pos++;
+  if ((C=B_Get(Current))!=' '&&C!=9&&C!=12&&C!='\r')
+   break;
+ }
+ return C;
+}
+
+char Fast B_Skip_Spaces(char C)
+{if (C==' '||C==9||C==12||C=='\r')
+ while (1)
+ {if (Current->Pos==Beg_Region)
+   return ' ';
+  Beg_Pos--;
+  if ((C=B_B_Get(Current))!=' '&&C!=9&&C!=12&&C!='\r')
+   break;
+ }
+ return(C);
+}
+
+void Fast Par()
+{Set_Region();
+ while (Ent_Count--&&!Check_CC())
+ {A_Par();
+  if (Err_Flag)
+   return;
+ }
+}
+
+void Fast A_Par()
+/*A Par*/
+{register char C;
+ register long Sav_Pos;
+ if (Ent_Direction)
+ {if (End_Pos>=End_Region)
+  {End_Error();
+   return;
+  }
+  B_Goto(Current,End_Pos);
+  while (1)
+  {if (End_Pos>=End_Region)
+    return;
+   End_Pos++;
+   if ((C=B_Get(Current))=='\n')
+   {End_Line++;
+    if (End_Pos>=End_Region)
+     return;
+    End_Pos++;
+    C=Skip_Spaces((C=B_Get(Current)));
+    if (End_Pos>=End_Region)
+    {if (C=='\n')
+      End_Line++;
+     return;
+    }
+    if (C=='\n')
+    {while (C=='\n')
+     {End_Line++;
+      if (End_Pos>=End_Region)
+       return;
+      End_Pos++;
+      C=Skip_Spaces((C=B_Get(Current)));
+      if (End_Pos>=End_Region)
+      {if (C=='\n')
+        End_Line++;
+       return;
+      }
+     }
+     End_Pos--;
+     return;
+    }
+   }
+  }
+ } else
+ {if (Beg_Pos==Beg_Region)
+  {Beg_Error();
+   return;
+  }
+  B_Goto(Current,Beg_Pos);
+  Beg_Pos--;
+  C=B_Skip_Spaces(C=B_B_Get(Current));
+  if (Current->Pos==Beg_Region)
+  {Beg_Error();
+   return;
+  }
+  if (C=='\n')
+  {while (C=='\n')
+   {Beg_Line--;
+    if (Current->Pos==Beg_Region)
+    {Beg_Error();
+     return;
+    }
+    C=B_Skip_Spaces((C=B_B_Get(Current)));
+    if (Current->Pos==Beg_Region)
+    {Beg_Error();
+     return;
+    }
+   }
+  }
+  Sav_Pos=Current->Pos;
+  while (1)
+  {if (Current->Pos==Beg_Region)
+   {Beg_Pos=Sav_Pos;
+    return;
+   }
+   if ((C=B_B_Get(Current))=='\n')
+   {if (Current->Pos==Beg_Region)
+    {Beg_Pos=Sav_Pos;
+     return;
+    }
+    C=B_Skip_Spaces((C=B_B_Get(Current)));
+    if (Current->Pos==Beg_Region)
+    {Beg_Pos=Sav_Pos;
+     return;
+    }
+    if (C=='\n')
+    {Beg_Pos=Sav_Pos;
+     return;
+    }
+    Beg_Line--;
+   } else
+   if (C!=' '&&C!=9&&C!=12&&C!='\r')
+    Sav_Pos=Current->Pos;
+  }
+ }
+}
+
+void Fast Sentence()
+{Set_Region();
+ while (Ent_Count--&&!Check_CC())
+ {A_Sentence();
+  if (Err_Flag)
+   return;
+ }
+}
+
+void Fast A_Sentence()
+/*A sentence*/
+{register char C;
+ register long Sav_Pos;
+ if (Ent_Direction)
+ {if (End_Pos>=End_Region)
+  {End_Error();
+   return;
+  }
+  B_Goto(Current,End_Pos);
+  while (1)
+  {if (End_Pos>=End_Region)
+    return;
+   End_Pos++;
+   if ((C=B_Get(Current))=='\n'||C=='.'||C==';'||C=='?'||C=='!'||C==':')
+   {if (C=='\n')
+     End_Line++;
+    if (End_Pos>=End_Region)
+     return;
+    End_Pos++;
+    C=Skip_Spaces((C=B_Get(Current)));
+    if (End_Pos>=End_Region)
+    {if (C=='\n')
+      End_Line++;
+     return;
+    }
+    if (C=='\n')
+    {while (C=='\n')
+     {End_Line++;
+      if (End_Pos>=End_Region)
+       return;
+      End_Pos++;
+      C=Skip_Spaces((C=B_Get(Current)));
+      if (End_Pos>=End_Region)
+      {if (C=='\n')
+        End_Line++;
+       return;
+      }
+     }
+     End_Pos--;
+     return;
+    }
+    End_Pos--;
+    return;
+   }
+  }
+ } else
+ {if (Beg_Pos==Beg_Region)
+  {Beg_Error();
+   return;
+  }
+  B_Goto(Current,Beg_Pos);
+  Beg_Pos--;
+  C=B_Skip_Spaces((C=B_B_Get(Current)));
+  if (Beg_Pos==Beg_Region)
+  {Beg_Error();
+   return;
+  }
+  if (C=='\n')
+  {while (C=='\n')
+   {Beg_Line--;
+    if (Beg_Pos==Beg_Region)
+    {Beg_Error();
+     return;
+    }
+    Beg_Pos--;
+    C=B_Skip_Spaces((C=B_B_Get(Current)));
+    if (Beg_Pos==Beg_Region)
+    {Beg_Error();
+     return;
+    }
+   }
+  }
+  Sav_Pos=Beg_Pos;
+  while (1)
+  {if (Beg_Pos==Beg_Region)
+   {Beg_Pos=Sav_Pos;
+    return;
+   }
+   Beg_Pos--;
+   if ((C=B_B_Get(Current))=='\n'||C=='.'||C==';'||C=='?'||C=='!'||C==':')
+   {Beg_Pos=Sav_Pos;
+    return;
+   } else
+   if (C!=' '&&C!=9&&C!=12&&C!='\r')
+    Sav_Pos=Beg_Pos;
+  }
+ }
+}
+
+void Fast Page()
+{Set_Region();
+ if (Ent_Direction)
+ {if (End_Pos>=End_Region)
+  {End_Error();
+   return;
+  }
+  while (Ent_Count--&&!Check_CC())
+  {if (!B_Search(Current,'\f',End_Region)&&Ent_Count)
+   {End_Error();
+    return;
+   };
+  }
+  End_Pos=Current->Pos;
+  B_Goto(Current,Beg_Pos);
+  Cnt_F_Lines(End_Pos);
+ } else
+ {if (Beg_Pos==Beg_Region)
+  {Beg_Error();
+   return;
+  }
+  B_Goto(Current,--Beg_Pos);
+  while (Ent_Count--&&!Check_CC())
+  {if (!B_B_Search(Current,'\f',Beg_Region))
+   {if (Ent_Count)
+    {Beg_Error();
+     return;
+    } else
+     Beg_Pos=Beg_Region;
+   } else
+    Beg_Pos=Current->Pos+1;
+  }
+  B_Goto(Current,End_Pos);
+  Cnt_B_Lines(Beg_Pos);
+ }
+}
+
+void Fast Screen()
+{Ent_Count*=(Rel_Last-Rel_First);
+ Line();
+ if (Err_Flag)
+ {Err_Flag=0;
+  if (Ent_Direction)
+   Bottom(); else
+   Top();
+ }
+}
+
+void Fast Match_Bracket()
+{int Level=0, Index;
+ unsigned char C;
+ if (Current->Pos>=End_Region)
+ {Error(3,No_Match_Txt);
+  return;
+ }
+ C=B_Get(Current);
+ B_B_Get(Current);
+#if (defined(DOS) & !defined(Windows)) | defined(OS2)
+ for (Index=0;Index<12;Index++)
+#else
+ for (Index=0;Index<10;Index++)
+#endif
+  if (Bracket[0][Index]==C)
+   break;
+#if (defined(DOS) & !defined(Windows)) | defined(OS2)
+ if (Index==12)
+#else
+ if (Index==10)
+#endif
+ {Error(3,No_Match_Txt);
+  return;
+ }
+#if (defined(DOS) & !defined(Windows)) | defined(OS2)
+ if (C=='('||C=='['||C=='{'||C=='<'||C==174)
+  Ent_Direction=1; else
+ if (C==')'||C==']'||C=='}'||C=='>'||C==175)
+  Ent_Direction=0;
+#else
+ if (C=='('||C=='['||C=='{'||C=='<')
+  Ent_Direction=1; else
+ if (C==')'||C==']'||C=='}'||C=='>')
+  Ent_Direction=0;
+#endif
+ if (Ent_Direction)
+ {B_Get(Current);
+  while (1)
+  {if (++End_Pos>=End_Region)
+   {Error(3,Missing_Match_Txt);
+    return;
+   }
+   if ((C=B_Get(Current))==Bracket[1][Index])
+   {if (Level--==0)
+     break;
+   } else
+   if (C==Bracket[0][Index])
+    Level++;
+  }
+  B_Goto(Current,Beg_Pos);
+  Cnt_F_Lines(End_Pos);
+ } else
+ {while (1)
+  {if (--Beg_Pos<Beg_Region)
+   {Error(3,Missing_Match_Txt);
+    return;
+   }
+   if ((C=B_B_Get(Current))==Bracket[1][Index])
+   {if (Level--==0)
+     break;
+   } else
+   if (C==Bracket[0][Index])
+    Level++;
+  }
+  B_Goto(Current,End_Pos);
+  Cnt_B_Lines(Beg_Pos);
+ }
+}
+
+void Fast Search_End()
+{B_Goto(Current,My_Pos);
+ End_Pos=Other_Pos;
+ Cnt_F_Lines(End_Pos);
+}
+
+#if defined(ANSIC)
+struct Ent_Rec {char *Name; int Type, Skipok;void (Fast *Function)(void);}
+#else
+struct Ent_Rec {char *Name; int Type, Skipok;void (Fast *Function)();}
+#endif
+
+ Ent_Tab[]=
+  {
+   {"AC",E_Unknown,1,Abs_Char},
+   {"AL",E_Unknown,1,Abs_Line},
+   {"BB",E_Unknown,1,Top},
+   {"BM",E_Unknown,1,Match_Bracket},
+   {"EB",E_Unknown,1,Bottom},
+   {"EL",E_Line,1,Line_End},
+   {"ES",E_Unknown,1,Search_End},
+   {"C",E_Char,1,Char},
+   {"F",E_Find,0,Find},
+   {"L",E_Line,1,Line},
+   {"M",E_Unknown,1,Get_Mark},
+   {"N",E_Find,1,Find_Next},
+   {"PAG",E_Pag,1,Page},
+   {"PAR",E_Par,1,Par},
+   {"SCR",E_Line,1,Screen},
+   {"SEN",E_Sen,1,Sentence},
+   {"SR",E_Paste,1,Sel_Range},
+   {"V",E_Unknown,1,Vertical},
+   {"W",E_Word,1,Word},
+   {"XNM",E_Unknown,1,Next_Mark},
+   {"XSR",E_NPaste,1,Sel_Range}
+  };
+
+#define Entities (sizeof(Ent_Tab)/sizeof(struct Ent_Rec))
+
+void Fast Ex_Entity()
+/*Gets and executes a entity*/
+{register int L=0, Done=0, Entity;
+ char S[10];
+ struct Ent_Rec *P;
+ Beg_Line=End_Line=This_Line;
+ B_Goto(Current,Beg_Pos=End_Pos=My_Pos);
+ while (!Done)
+ {if (Com.Pos>Com.Bufsize||L==8)
+  {Ent_Error();
+   return;
+  }
+  if (islower(Ent_Char=B_Get(&Com))||(Ent_Char>=224&&Ent_Char<=255))
+   Ent_Char=_toupper(Ent_Char);
+  if (!isupper(Ent_Char)&&(Ent_Char<192&&Ent_Char>255))
+  {Ent_Error();
+   return;
+  }
+  S[L++]=Ent_Char;
+  S[L]=0;
+  for (Entity=0;Entity<Entities;Entity++)
+   {if (S[0]==(*(P=(&Ent_Tab[Entity]))).Name[0]&&!strcmp(S,(*(P)).Name))
+    {Old_E_Type=E_Type;
+     E_Type=(*P).Type;
+     if (!(Skip&&(*P).Skipok))
+     {
+      (*((*P).Function))();
+     }
+     Done=1;
+     break;
+   }
+  }
+ }
+}
+
+void Fast Cnt_F_Lines(long Pos)
+{while (B_Search(Current,'\n',Pos))
+  End_Line++;
+}
+
+void Fast Cnt_B_Lines(long Pos)
+{while (B_B_Search(Current,'\n',Pos))
+  Beg_Line--;
+}
+
+void Fast Set_Region()
+{Beg_Region=Points[Maxpoints+3];
+ End_Region=Points[Maxpoints+4];
+}
+
+void Fast End_Error()
+{if (End_Region!=Current->Bufsize+1)
+  Error(3,Edit_Region_End_Txt); else
+  Error(3,Buffer_End_Txt);
+}
+
+void Fast Beg_Error()
+{if (Beg_Region!=1)
+  Error(3,Edit_Region_Begin_Txt); else
+  Error(3,Buffer_Beginning_Txt);
+}
+
+void Fast Delim_Error()
+{Error(3,No_Delimiter_Txt);
+}
+
+void Fast Ent_Error()
+{Error(2,Bad_Entity_Txt);
+}