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xemacs

xemacs

 

  1  definition  found 
 
  From  The  Free  On-line  Dictionary  of  Computing  (13  Mar  01)  [foldoc]: 
 
  Xemacs 
 
    (Originally  "Lucid  Emacs")  A  text  editor  for  the 
  {X  Window  System},  based  on  {GNU}  {Emacs}  version  19,  produced 
  by  a  collaboration  of  {Lucid,  Inc.},  {SunPro}  (a  division  of 
  {Sun  Microsystems  Inc.}),  and  the  {University  of  Illinois}. 
 
  Lucid  chose  to  build  part  of  {Energize},  their  {C}/{C++} 
  development  environment  on  top  of  GNU  Emacs.  Though  their 
  product  is  commercial,  the  work  on  GNU  Emacs  is  {free 
  software},  and  is  useful  without  having  to  purchase  the 
  product.  They  needed  a  version  of  Emacs  with  mouse-sensitive 
  regions,  multiple  fonts,  the  ability  to  mark  sections  of  a 
  buffer  as  read-only,  the  ability  to  detect  which  parts  of  a 
  buffer  has  been  modified,  and  many  other  features. 
 
  The  existing  version  of  {Epoch}  was  not  sufficient;  it  did  not 
  allow  arbitrary  {pixmaps}  and  {icons}  in  buffers,  undo"  did 
  not  restore  changes  to  regions,  regions  did  not  overlap  and 
  merge  their  attributes.  Lucid  spent  some  time  in  1990  working 
  on  Epoch  but  later  decided  that  their  efforts  would  be  better 
  spent  improving  Emacs  19  instead. 
 
  Lucid  did  not  have  time  to  get  their  changes  accepted  by  the 
  {FSF}  so  they  released  Lucid  Emacs  as  a  forked  branch  of 
  Emacs.  Roughly  a  year  after  Lucid  Emacs  19.0  was  released,  a 
  beta  version  of  the  FSF  branch  of  Emacs  19  was  released. 
  Lucid  continued  to  develop  and  support  Lucid  Emacs,  merging  in 
  bug  fixes  and  new  features  from  the  FSF  branch  as  appropriate. 
 
  A  compatibility  package  was  planned  to  allow  Epoch  4  code  to 
  run  in  Lemacs  with  little  or  no  change.  (As  of  19.8,  Lucid 
  Emacs  ran  a  descendant  of  the  Epoch  redisplay  engine.) 
 
  [Update?] 
 
  (2000-05-16)