myplain2-doi.bst

% 31-10-21: Updated doi for books.
% 21-9-19: Moved editor forward in "in book" entries.

% [2016-11-12 Sat 19:48] Updated doi to new recommended URL.
% http://blog.crossref.org/2016/09/new-crossref-doi-display-guidelines.html

% [2014-04-05 Sat 17:50] Added doi, url field handling as per
% http://www.math.tamu.edu/~comech/tools/bibtex-doi-eprint/

% 14-12-07 During FM proofs: Title of book series made \em.

% 26-11-01: hack copied from myabbrv.bst to omit month from year info for
% article only.

% is-plain.bst modified by NJH to print pages field for books, theses and
% reports.  New format.pp function patterned after format.isbn function.
% Also moved `edition' for book to come before publisher, etc.

% 4-3-95: Hacked inproc and incoll entries and
% format.in.ed.booktitle (looking at amsplain.bst).
% Not very careful but it seems to work.
% (I've removed the organization field, e.g., which I never use.)
% Attempts to change `volume n of \dots' to `\dots, volume 10'
% abandoned as too difficult, though amsplain.bst manages it (tried copying
% ones of its routines across, but had a stack problem with one ref).

% 8-4-95: Added page field printing to misc, unpublished and proceedings,
% and commented it out of inproceedings.

%% =====================================================================
%% WARNING: Do NOT edit this file.  It was produced automatically by
%% Nelson H. F. Beebe <beebe@magna.math.utah.edu>
%% from /home/csc-sun/a/sy/beebe/tex/bib/merge/xbtxbst.doc
%% on Thu Sep 12 10:55:28 MDT 1991
%% =====================================================================

%% =====================================================================
%%  @BibTeX-style-file{
%%      author          = "Nelson H. F. Beebe",
%%      version         = "1.02",
%%      date            = "12 September 1991",
%%      filename        = "is-plain.bst",
%%      address         = "Center for Scientific Computing
%%                         Department of Mathematics
%%                         South Physics Building
%%                         University of Utah
%%                         Salt Lake City, UT 84112
%%                         USA
%%                         Tel: (801) 581-5254",
%%      checksum        = "23731 1325 3010 24682",
%%      email           = "beebe@math.utah.edu (Internet)",
%%      codetable       = "ISO/ASCII",
%%      keywords        = "BibTeX, style, bibliography",
%%      supported       = "yes",
%%      docstring       = "This file is a modification of the standard
%%                         BibTeX btxbst.doc file, or is a .bst file
%%                         derived from that modification.  It contains
%%                         added support for ISBN and ISSN fields, as
%%                         well as for the PERIODICAL entry.  The UNIX C
%%                         preprocessor can be used to extract the
%%                         extensions of the standard styles, as
%%                         follows:
%%
%%                         cpp -P -DPLAIN xbtxbst.doc is-plain.txt
%%                         cpp -P -DUNSRT xbtxbst.doc is-unsrt.txt
%%                         cpp -P -DALPHA xbtxbst.doc is-alpha.txt
%%                         cpp -P -DABBRV xbtxbst.doc is-abbrv.txt
%%
%%                         If desired, a sed script can be used to
%%                         eliminate non-essential comments (this
%%                         reduces the file size by 2/3); a command
%%                         filter step like
%%                                 sed -e '/^%$/d' -e '/^%[^%].*$/d'
%%                         will accomplish that job.
%%
%%                         The checksum field above contains a CRC-16
%%                         checksum as the first value, followed by the
%%                         equivalent of the standard UNIX wc (word
%%                         count) utility output of lines, words, and
%%                         characters.  This is produced by Robert
%%                         Solovay's checksum utility."
%%      }
%% =====================================================================
%% Revision history (reverse time order):
%% 1.02 [12-Sep-1991]
%%      Merge in Barbara N. Beeton's suggestion for hyphen-less
%%      line breaks around volume(number):page.
%% 1.01 [10-Sep-1991]
%%      Update file comment header and use Solovay checksum program.
%% 1.00 [17-Oct-1990]
%%      Original version merging hand-edits of is-xxx.bst files into
%%      this master file, xbtxbst.doc.


%% BibTeX `plain' family
%%       version 0.99b for BibTeX versions 0.99a or later, LaTeX version 2.09.
%%       Copyright (C) 1985, all rights reserved.
%%       Copying of this file is authorized only if either
%%       (1) you make absolutely no changes to your copy, including name, or
%%       (2) if you do make changes, you name it something other than
%%       btxbst.doc, plain.bst, unsrt.bst, alpha.bst, and abbrv.bst.
%%       This restriction helps ensure that all standard styles are identical.
%%       The file btxbst.doc has the documentation for this style.

ENTRY
  { address
    author
    booktitle
    chapter
    edition
    editor
    howpublished
    institution
    isbn
    issn
    journal
    key
    month
    note
    number
    organization
    pages
    publisher
    school
    series
    title
    type
    volume
    year
    doi %% MAKE SURE THE ENTRIES DO NOT REPEAT!
    eprint %% MAKE SURE THE ENTRIES DO NOT REPEAT!
    url %% MAKE SURE THE ENTRIES DO NOT REPEAT!
  }
  {}

  { label }



INTEGERS { output.state before.all mid.sentence after.sentence after.block }

FUNCTION {init.state.consts}
{ #0 'before.all :=
  #1 'mid.sentence :=
  #2 'after.sentence :=
  #3 'after.block :=
}


STRINGS { s t }

FUNCTION {output.nonnull}
{ 's :=
  output.state mid.sentence =
    { ", " * write$ }
    { output.state after.block =
        { add.period$ write$
          newline$
          "\newblock " write$
        }
        { output.state before.all =
            'write$
            { add.period$ " " * write$ }
          if$
        }
      if$
      mid.sentence 'output.state :=
    }
  if$
  s
}

FUNCTION {output}
{ duplicate$ empty$
    'pop$
    'output.nonnull
  if$
}

FUNCTION {output.check}
{ 't :=
  duplicate$ empty$
    { pop$ "empty " t * " in " * cite$ * warning$ }
    'output.nonnull
  if$
}

FUNCTION {output.bibitem}
{ newline$

  "\bibitem{" write$

  cite$ write$
  "}" write$
  newline$
  ""
  before.all 'output.state :=
}


FUNCTION {fin.entry}
{ add.period$
  write$
  newline$
}

FUNCTION {new.block}
{ output.state before.all =
    'skip$
    { after.block 'output.state := }
  if$
}

FUNCTION {new.sentence}
{ output.state after.block =
    'skip$
    { output.state before.all =
        'skip$
        { after.sentence 'output.state := }
      if$
    }
  if$
}


FUNCTION {not}
{   { #0 }
    { #1 }
  if$
}

FUNCTION {and}
{   'skip$
    { pop$ #0 }
  if$
}

FUNCTION {or}
{   { pop$ #1 }
    'skip$
  if$
}


FUNCTION {new.block.checka}
{ empty$
    'skip$
    'new.block
  if$
}

FUNCTION {new.block.checkb}
{ empty$
  swap$ empty$
  and
    'skip$
    'new.block
  if$
}


FUNCTION {new.sentence.checka}
{ empty$
    'skip$
    'new.sentence
  if$
}

FUNCTION {new.sentence.checkb}
{ empty$
  swap$ empty$
  and
    'skip$
    'new.sentence
  if$
}


FUNCTION {field.or.null}
{ duplicate$ empty$
    { pop$ "" }
    'skip$
  if$
}

FUNCTION {emphasize}
{ duplicate$ empty$
    { pop$ "" }
    { "{\em " swap$ * "}" * }
  if$
}

INTEGERS { nameptr namesleft numnames }

FUNCTION {format.names}
{ 's :=
  #1 'nameptr :=
  s num.names$ 'numnames :=
  numnames 'namesleft :=
    { namesleft #0 > }

    { s nameptr "{ff~}{vv~}{ll}{, jj}" format.name$ 't :=

      nameptr #1 >
        { namesleft #1 >
            { ", " * t * }
            { numnames #2 >
                { "," * }
                'skip$
              if$
              t "others" =
                { " et~al." * }
                { " and " * t * }
              if$
            }
          if$
        }
        't
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}

FUNCTION {format.authors}
{ author empty$
    { "" }
    { author format.names }
  if$
}

FUNCTION {format.editors}
{ editor empty$
    { "" }
    { editor format.names
      editor num.names$ #1 >
        { ", editors" * }
        { ", editor" * }
      if$
    }
  if$
}

FUNCTION {format.pp}
{ pages empty$
    { "" }
    { new.block pages " pp"  * }
  if$
}

FUNCTION {format.isbn}
{ isbn empty$
    { "" }
    { new.block "ISBN " isbn * }
  if$
}

FUNCTION {format.issn}
{ issn empty$
    { "" }
    { new.block "ISSN " issn * }
  if$
}


FUNCTION {format.title}
{ title empty$
    { "" }

    { title "t" change.case$ }

  if$
  url empty$
    {
    doi empty$
      {
      eprint empty$
        { }
        { "\href{http://arxiv.org/abs/" eprint * "}{" * swap$ * "}" * }
      if$
      }
      { "\href{https://doi.org/" doi * "}{" * swap$ * "}" * }
    if$
    }
    { "\href{" url * "}{" * swap$ * "}" * }
  if$
}



FUNCTION {n.dashify}
{ 't :=
  ""
    { t empty$ not }
    { t #1 #1 substring$ "-" =
        { t #1 #2 substring$ "--" = not
            { "--" *
              t #2 global.max$ substring$ 't :=
            }
            {   { t #1 #1 substring$ "-" = }
                { "-" *
                  t #2 global.max$ substring$ 't :=
                }
              while$
            }
          if$
        }
        { t #1 #1 substring$ *
          t #2 global.max$ substring$ 't :=
        }
      if$
    }
  while$
}


FUNCTION {format.date}
{ year empty$
    { month empty$
        { "" }
        { "there's a month but no year in " cite$ * warning$
          month
        }
      if$
    }
    { month empty$
        'year
        { month " " * year * }
      if$
    }
  if$
}

FUNCTION {format.date.nomonth}
{ year empty$
    { month empty$
        { "" }
        { "there's a month but no year in " cite$ * warning$
          month
        }
      if$
    }
    { month empty$
        'year
%        { month " " * year * }
        { year }
      if$
    }
  if$
}


FUNCTION {format.btitle}
{ title emphasize
url empty$
    {
    doi empty$
      {
      eprint empty$
        { }
        { "\href{http://arxiv.org/abs/" eprint * "}{" * swap$ * "}" * }
      if$
      }
      { "\href{http://doi.org/" doi * "}{" * swap$ * "}" * }
    if$
    }
    { "\href{" url * "}{" * swap$ * "}" * }
  if$
}


FUNCTION {tie.or.space.connect}
{ duplicate$ text.length$ #3 <
    { "~" }
    { " " }
  if$
  swap$ * *
}


FUNCTION {either.or.check}
{ empty$
    'pop$
    { "can't use both " swap$ * " fields in " * cite$ * warning$ }
  if$
}

FUNCTION {format.bvolume}
{ volume empty$
    { "" }
    { "volume" volume tie.or.space.connect
      series empty$
        'skip$
        { " of " * series emphasize * }
      if$
      "volume and number" number either.or.check
    }
  if$
}


FUNCTION {format.number.series}
{ volume empty$
    { number empty$
        { series field.or.null }
        { output.state mid.sentence =
            { "number" }
            { "Number" }
          if$
          number tie.or.space.connect
          series empty$
            { "there's a number but no series in " cite$ * warning$ }
            { " in {\em " * series * "\/}" * }
%            { " in " * series * }
          if$
        }
      if$
    }
    { "" }
  if$
}


FUNCTION {format.edition}
{ edition empty$
    { "" }
    { output.state mid.sentence =
        { edition "l" change.case$ " edition" * }
        { edition "t" change.case$ " edition" * }
      if$
    }
  if$
}


INTEGERS { multiresult }

FUNCTION {multi.page.check}
{ 't :=
  #0 'multiresult :=
    { multiresult not
      t empty$ not
      and
    }
    { t #1 #1 substring$
      duplicate$ "-" =
      swap$ duplicate$ "," =
      swap$ "+" =
      or or
        { #1 'multiresult := }
        { t #2 global.max$ substring$ 't := }
      if$
    }
  while$
  multiresult
}


FUNCTION {format.pages}
{ pages empty$
    { "" }
    { pages multi.page.check
        { "pages" pages n.dashify tie.or.space.connect }
        { "page" pages tie.or.space.connect }
      if$
    }
  if$
}


FUNCTION {format.vol.num.pages}
{ volume field.or.null
  number empty$
    'skip$
    { "\penalty0 (" number * ")" * *
      volume empty$
        { "there's a number but no volume in " cite$ * warning$ }
        'skip$
      if$
    }
  if$
  pages empty$
    'skip$
    { duplicate$ empty$
        { pop$ format.pages }
        { ":\penalty0 " * pages n.dashify * }
      if$
    }
  if$
}



FUNCTION {format.chapter.pages}
{ chapter empty$
    'format.pages
    { type empty$
        { "chapter" }
        { type "l" change.case$ }
      if$
      chapter tie.or.space.connect
      pages empty$
        'skip$
        { ", " * format.pages * }
      if$
    }
  if$
}


FUNCTION {format.in.ed.booktitle}
% Adapted from amsplain.bst with minimal changes.
% FUNCTION {format.inproc.title.address.editors}
{ booktitle empty$
    { "" }
%%      No case changing or emphasizing for the title.  We want initial
%%      caps, roman.
    { "In " booktitle emphasize * }
  if$
%%      We add parentheses around the address (place where conference
%%      was held).
%   address empty$
%     'skip$
%     { "(" * address * ")" * }
%  if$
%%      Likewise we add parentheses around the editors' names.
  editor empty$
    'skip$
%    { add.space.if.necessary "(" * format.nonauthor.editors * ")" * }
    { ", " * format.editors * }
  if$
% { booktitle empty$
%     { "" }
%     { editor empty$
%         { "In " booktitle emphasize * }
% %        { "In " format.editors * ", " * booktitle emphasize * }
% % NJH:
%         { "In " * booktitle emphasize * ", " format.editors * }
%       if$
%     }
%   if$
}

FUNCTION {empty.misc.check}
{ author empty$ title empty$ howpublished empty$
  month empty$ year empty$ note empty$
  and and and and and

  key empty$ not and

    { "all relevant fields are empty in " cite$ * warning$ }
    'skip$
  if$
}


FUNCTION {format.thesis.type}
{ type empty$
    'skip$
    { pop$
      type "t" change.case$
    }
  if$
}


FUNCTION {format.tr.number}
{ type empty$
    { "Technical Report" }
    'type
  if$
  number empty$
    { "t" change.case$ }
    { number tie.or.space.connect }
  if$
}


FUNCTION {format.article.crossref}
{ key empty$
    { journal empty$
        { "need key or journal for " cite$ * " to crossref " * crossref *
          warning$
          ""
        }
        { "In {\em " journal * "\/}" * }
      if$
    }
    { "In " key * }
  if$
  " \cite{" * crossref * "}" *
}


FUNCTION {format.crossref.editor}
{ editor #1 "{vv~}{ll}" format.name$
  editor num.names$ duplicate$
  #2 >
    { pop$ " et~al." * }
    { #2 <
        'skip$
        { editor #2 "{ff }{vv }{ll}{ jj}" format.name$ "others" =
            { " et~al." * }
            { " and " * editor #2 "{vv~}{ll}" format.name$ * }
          if$
        }
      if$
    }
  if$
}


FUNCTION {format.book.crossref}
{ volume empty$
    { "empty volume in " cite$ * "'s crossref of " * crossref * warning$
      "In "
    }
    { "Volume" volume tie.or.space.connect
      " of " *
    }
  if$
  editor empty$
  editor field.or.null author field.or.null =
  or
    { key empty$
        { series empty$
            { "need editor, key, or series for " cite$ * " to crossref " *
              crossref * warning$
              "" *
            }
            { "{\em " * series * "\/}" * }
          if$
        }
        { key * }
      if$
    }
    { format.crossref.editor * }
  if$
  " \cite{" * crossref * "}" *
}


FUNCTION {format.incoll.inproc.crossref}
{ editor empty$
  editor field.or.null author field.or.null =
  or
    { key empty$
        { booktitle empty$
            { "need editor, key, or booktitle for " cite$ * " to crossref " *
              crossref * warning$
              ""
            }
            { "In {\em " booktitle * "\/}" * }
          if$
        }
%        { "In " key * }
        { "In"  } % NJH: removed key.
      if$
    }
%    { "In " format.crossref.editor * }
    { "In" }      % NJH: removed editor.
  if$
  " \cite{" * crossref * "}" *
}


FUNCTION {article}
{ output.bibitem
  format.authors "author" output.check
  new.block
  format.title "title" output.check
  new.block
  crossref missing$
    { journal emphasize "journal" output.check
      format.vol.num.pages output
      format.date.nomonth "year" output.check
    }
    { format.article.crossref output.nonnull
      format.pages output
    }
  if$
  new.block
  note output
  fin.entry
}

FUNCTION {book}
{ output.bibitem
  author empty$
    { format.editors "author and editor" output.check }
    { format.authors output.nonnull
      crossref missing$
        { "author and editor" editor either.or.check }
        'skip$
      if$
    }
  if$
  new.block
  format.btitle "title" output.check
  crossref missing$
    { format.bvolume output
      new.block
      format.number.series output
      new.sentence
      % Next line moved from below by NJH.
      format.edition output
      publisher "publisher" output.check
      address output
    }
    { new.block
      format.book.crossref output.nonnull
    }
  if$
  format.date "year" output.check
  format.pp output
  new.block
  note output
  % Moved from two lines above - ditto in entries below.
  format.isbn output
  fin.entry
}


FUNCTION {booklet}
{ output.bibitem
  format.authors output
  new.block
  format.title "title" output.check
  howpublished address new.block.checkb
  howpublished output
  address output
  format.date output
  new.block
  note output
  format.isbn output
  fin.entry
}



FUNCTION {inbook}
{ output.bibitem
  author empty$
    { format.editors "author and editor" output.check }
    { format.authors output.nonnull
      crossref missing$
        { "author and editor" editor either.or.check }
        'skip$
      if$
    }
  if$
  new.block
  format.btitle "title" output.check
  crossref missing$
    { format.bvolume output
      format.chapter.pages "chapter and pages" output.check
      new.block
      format.number.series output
      new.sentence
      publisher "publisher" output.check
      address output
    }
    { format.chapter.pages "chapter and pages" output.check
      new.block
      format.book.crossref output.nonnull
    }
  if$
  format.edition output
  format.date "year" output.check
  new.block
  note output
  format.isbn output
  fin.entry
}


FUNCTION {incollection}
{ output.bibitem
  format.authors "author" output.check
  new.block
  format.title "title" output.check
  new.block
  crossref missing$
    { format.in.ed.booktitle "booktitle" output.check
      format.bvolume output
      format.number.series output
%      format.chapter.pages output % Moved below: NJH
%      new.sentence
      format.edition output
      publisher "publisher" output.check
      address output
      format.date "year" output.check
      format.chapter.pages output
    }
    { format.incoll.inproc.crossref output.nonnull
      format.chapter.pages output
    }
  if$
  new.block
  note output
%  format.isbn output
  fin.entry
}


FUNCTION {inproceedings}
{ output.bibitem
  format.authors "author" output.check
  new.block
  format.title "title" output.check
  new.block
  crossref missing$
    { format.in.ed.booktitle "booktitle" output.check
%      format.bookvolume.series.number output % NJH
      format.bvolume output
      format.number.series output
%      format.pages output  % Moved below by NJH
      address empty$
        { % organization publisher output % NJH, was: new.sentence.checkb
          organization output
          publisher output
          format.date "year" output.check
          format.pages output
        }
        { address output.nonnull
          format.date "year" output.check
          format.pages output
          new.sentence
          organization output
          publisher output
        }
      if$
    }
    { format.incoll.inproc.crossref output.nonnull
      format.pages output
    }
  if$
  new.block
  note output
%  format.isbn output
  fin.entry
}


FUNCTION {conference} { inproceedings }


FUNCTION {manual}
{ output.bibitem
  author empty$
    { organization empty$
        'skip$
        { organization output.nonnull
          address output
        }
      if$
    }
    { format.authors output.nonnull }
  if$
  new.block
  format.btitle "title" output.check
  author empty$
    { organization empty$
        { address new.block.checka
          address output
        }
        'skip$
      if$
    }
    { organization address new.block.checkb
      organization output
      address output
    }
  if$
  format.edition output
  format.date output
  new.block
  note output
  fin.entry
}


FUNCTION {mastersthesis}
{ output.bibitem
  format.authors "author" output.check
  new.block
  format.title "title" output.check
  new.block
  "Master's thesis" format.thesis.type output.nonnull
  school "school" output.check
  address output
  format.date "year" output.check
  format.pp output
  new.block
  note output
  fin.entry
}


FUNCTION {misc}
{ output.bibitem
  format.authors output
  title howpublished new.block.checkb
  format.title output
  howpublished new.block.checka
  howpublished output
  format.date output
  format.issn output
  new.block
  note output
  format.pp output
  fin.entry
  empty.misc.check
}


FUNCTION {phdthesis}
{ output.bibitem
  format.authors "author" output.check
  new.block
  format.btitle "title" output.check
  new.block
  "PhD thesis" format.thesis.type output.nonnull
  school "school" output.check
  address output
  format.date "year" output.check
  format.pp output
  new.block
  note output
  fin.entry
}


FUNCTION {periodical}
{ output.bibitem
  editor empty$
    { organization output }
    { format.editors output.nonnull }
  if$
  new.block
  title emphasize "title" output.check
  format.vol.num.pages output
  format.date output
  format.issn output
  new.sentence
  publisher output
  address output
  howpublished new.block.checka
  howpublished output
  new.block
  note output
  fin.entry
}


FUNCTION {proceedings}
{ output.bibitem
  editor empty$
    { organization output }
    { format.editors output.nonnull }
  if$
  new.block
  format.btitle "title" output.check
%  format.bookvolume.series.number output % NJH
  format.bvolume output
  format.number.series output
  address empty$
    { editor empty$
        { publisher new.sentence.checka }
        { organization publisher new.sentence.checkb
          organization output
        }
      if$
      publisher output
      format.date "year" output.check
    }
    { address output.nonnull
      format.date "year" output.check
      new.sentence
      editor empty$
        'skip$
        { organization output }
      if$
      publisher output
    }
  if$
  new.block
  note output
  format.pp output
  format.isbn output
  fin.entry
}


FUNCTION {techreport}
{ output.bibitem
  format.authors "author" output.check
  new.block
  format.title "title" output.check
  new.block
  format.tr.number output.nonnull
  institution "institution" output.check
  address output
  format.date "year" output.check
  format.pp output
  new.block
  note output
  fin.entry
}


FUNCTION {unpublished}
{ output.bibitem
  format.authors "author" output.check
  new.block
  format.title "title" output.check
  new.block
  note "note" output.check
  format.date output
  format.pp output
  fin.entry
}


FUNCTION {default.type} { misc }




MACRO {jan} {"January"}

MACRO {feb} {"February"}

MACRO {mar} {"March"}

MACRO {apr} {"April"}

MACRO {may} {"May"}

MACRO {jun} {"June"}

MACRO {jul} {"July"}

MACRO {aug} {"August"}

MACRO {sep} {"September"}

MACRO {oct} {"October"}

MACRO {nov} {"November"}

MACRO {dec} {"December"}






MACRO {acmcs} {"ACM Computing Surveys"}

MACRO {acta} {"Acta Informatica"}

MACRO {cacm} {"Communications of the ACM"}

MACRO {ibmjrd} {"IBM Journal of Research and Development"}

MACRO {ibmsj} {"IBM Systems Journal"}

MACRO {ieeese} {"IEEE Transactions on Software Engineering"}

MACRO {ieeetc} {"IEEE Transactions on Computers"}

MACRO {ieeetcad}
 {"IEEE Transactions on Computer-Aided Design of Integrated Circuits"}

MACRO {ipl} {"Information Processing Letters"}

MACRO {jacm} {"Journal of the ACM"}

MACRO {jcss} {"Journal of Computer and System Sciences"}

MACRO {scp} {"Science of Computer Programming"}

MACRO {sicomp} {"SIAM Journal on Computing"}

MACRO {tocs} {"ACM Transactions on Computer Systems"}

MACRO {tods} {"ACM Transactions on Database Systems"}

MACRO {tog} {"ACM Transactions on Graphics"}

MACRO {toms} {"ACM Transactions on Mathematical Software"}

MACRO {toois} {"ACM Transactions on Office Information Systems"}

MACRO {toplas} {"ACM Transactions on Programming Languages and Systems"}

MACRO {tcs} {"Theoretical Computer Science"}




READ




FUNCTION {sortify}
{ purify$
  "l" change.case$
}

INTEGERS { len }

FUNCTION {chop.word}
{ 's :=
  'len :=
  s #1 len substring$ =
    { s len #1 + global.max$ substring$ }
    's
  if$
}









FUNCTION {sort.format.names}
{ 's :=
  #1 'nameptr :=
  ""
  s num.names$ 'numnames :=
  numnames 'namesleft :=
    { namesleft #0 > }
    { nameptr #1 >
        { "   " * }
        'skip$
      if$

      s nameptr "{vv{ } }{ll{ }}{  ff{ }}{  jj{ }}" format.name$ 't :=

      nameptr numnames = t "others" = and
        { "et al" * }
        { t sortify * }
      if$
      nameptr #1 + 'nameptr :=
      namesleft #1 - 'namesleft :=
    }
  while$
}


FUNCTION {sort.format.title}
{ 't :=
  "A " #2
    "An " #3
      "The " #4 t chop.word
    chop.word
  chop.word
  sortify
  #1 global.max$ substring$
}


FUNCTION {author.sort}
{ author empty$
    { key empty$
        { "to sort, need author or key in " cite$ * warning$
          ""
        }
        { key sortify }
      if$
    }
    { author sort.format.names }
  if$
}

FUNCTION {author.editor.sort}
{ author empty$
    { editor empty$
        { key empty$
            { "to sort, need author, editor, or key in " cite$ * warning$
              ""
            }
            { key sortify }
          if$
        }
        { editor sort.format.names }
      if$
    }
    { author sort.format.names }
  if$
}

FUNCTION {author.organization.sort}
{ author empty$
    { organization empty$
        { key empty$
            { "to sort, need author, organization, or key in " cite$ * warning$
              ""
            }
            { key sortify }
          if$
        }
        { "The " #4 organization chop.word sortify }
      if$
    }
    { author sort.format.names }
  if$
}

FUNCTION {editor.organization.sort}
{ editor empty$
    { organization empty$
        { key empty$
            { "to sort, need editor, organization, or key in " cite$ * warning$
              ""
            }
            { key sortify }
          if$
        }
        { "The " #4 organization chop.word sortify }
      if$
    }
    { editor sort.format.names }
  if$
}


FUNCTION {presort}

{ type$ "book" =

  type$ "inbook" =
  or
    'author.editor.sort
    { type$ "proceedings" =
        'editor.organization.sort
        { type$ "manual" =
            'author.organization.sort
            'author.sort
          if$
        }
      if$
    }
  if$

  "    "
  *
  year field.or.null sortify
  *
  "    "
  *
  title field.or.null
  sort.format.title
  *
  #1 entry.max$ substring$
  'sort.key$ :=
}

ITERATE {presort}


SORT







STRINGS { longest.label }

INTEGERS { number.label longest.label.width }

FUNCTION {initialize.longest.label}
{ "" 'longest.label :=
  #1 'number.label :=
  #0 'longest.label.width :=
}

FUNCTION {longest.label.pass}
{ number.label int.to.str$ 'label :=
  number.label #1 + 'number.label :=
  label width$ longest.label.width >
    { label 'longest.label :=
      label width$ 'longest.label.width :=
    }
    'skip$
  if$
}

EXECUTE {initialize.longest.label}

ITERATE {longest.label.pass}




FUNCTION {begin.bib}

{ preamble$ empty$

    'skip$
    { preamble$ write$ newline$ }
  if$
  "\begin{thebibliography}{"  longest.label  * "}" * write$ newline$
}

EXECUTE {begin.bib}

EXECUTE {init.state.consts}


ITERATE {call.type$}


FUNCTION {end.bib}
{ newline$
  "\end{thebibliography}" write$ newline$
}

EXECUTE {end.bib}