gbt7714-2015-little.bst

%%
%% This is file `gbt7714-numerical.bst',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% gbt7714.dtx  (with options: `2015,numerical')
%% -------------------------------------------------------------------
%% GB/T 7714-2015 BibTeX Style
%% https://github.com/CTeX-org/gbt7714-bibtex-style
%% Version: 2020/06/08 v2.0.2
%% -------------------------------------------------------------------
%% Copyright (C) 2016-2020 by Zeping Lee <zepinglee AT gmail.com>
%% -------------------------------------------------------------------
%% This file may be distributed and/or modified under the
%% conditions of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%% The latest version of this license is in
%%    https://www.latex-project.org/lppl.txt
%% and version 1.3c or later is part of all distributions of LaTeX
%% version 2005/12/01 or later.
%% -------------------------------------------------------------------
INTEGERS {
    citation.et.al.min
    citation.et.al.use.first
    bibliography.et.al.min
    bibliography.et.al.use.first
    uppercase.name
    terms.in.macro
    year.after.author
    period.after.author
    sentence.case.title
    link.title
    title.in.journal
    show.mark
    space.before.mark
    show.medium.type
    slash.for.extraction
    in.booktitle
    short.journal
    italic.journal
    bold.journal.volume
    show.missing.address.publisher
    only.start.page
    show.urldate
    show.url
    show.doi
    show.preprint
    show.note
    show.english.translation
  }
  
  FUNCTION {load.config}
  {
    #2 'citation.et.al.min :=
    #1 'citation.et.al.use.first :=
    #4 'bibliography.et.al.min :=
    #3 'bibliography.et.al.use.first :=
    #0 'uppercase.name :=
    #1 'terms.in.macro :=
    #0 'year.after.author :=
    #1 'period.after.author :=
    #1 'sentence.case.title :=
    #0 'link.title :=
    #1 'title.in.journal :=
    #1 'show.mark :=
    #1 'space.before.mark :=
    #1 'show.medium.type :=
    #1 'slash.for.extraction :=
    #0 'in.booktitle :=
    #0 'short.journal :=
    #0 'italic.journal :=
    #0 'bold.journal.volume :=
    #0 'show.missing.address.publisher :=
    #0 'only.start.page :=
    #1 'show.urldate :=
    #1 'show.url :=
    #1 'show.doi :=
    #0 'show.preprint :=
    #0 'show.note :=
    #0 'show.english.translation :=
  }
  
  ENTRY
    { address
      archivePrefix
      author
      booktitle
      date
      doi
      edition
      editor
      eprint
      eprinttype
      howpublished
      institution
      journal
      journaltitle
      key
      langid
      language
      location
      mark
      medium
      note
      number
      organization
      pages
      publisher
      school
      series
      shortjournal
      title
      translation
      translator
      url
      urldate
      volume
      year
    }
    { entry.lang entry.is.electronic is.pure.electronic entry.numbered }
    { label extra.label sort.label short.list entry.mark entry.url }
  
  INTEGERS { output.state before.all mid.sentence after.sentence after.block after.slash }
  
  INTEGERS { lang.zh lang.ja lang.en lang.ru lang.other }
  
  INTEGERS { charptr len }
  
  FUNCTION {init.state.consts}
  { #0 'before.all :=
    #1 'mid.sentence :=
    #2 'after.sentence :=
    #3 'after.block :=
    #4 'after.slash :=
    #3 'lang.zh :=
    #4 'lang.ja :=
    #1 'lang.en :=
    #2 'lang.ru :=
    #0 'lang.other :=
  }
  
  FUNCTION {bbl.anonymous}
  { entry.lang lang.zh =
      { "佚名" }
      { "Anon" }
    if$
  }
  
  FUNCTION {bbl.space}
  { entry.lang lang.zh =
      { "\ " }
      { " " }
    if$
  }
  
  FUNCTION {bbl.and}
  { "" }
  
  FUNCTION {bbl.et.al}
  { entry.lang lang.zh =
      { "等" }
      { entry.lang lang.ja =
          { "他" }
          { entry.lang lang.ru =
              { "идр" }
              { "et~al." }
            if$
          }
        if$
      }
    if$
  }
  
  FUNCTION {citation.and}
  { terms.in.macro
      { "{\biband}" }
      'bbl.and
    if$
  }
  
  FUNCTION {citation.et.al}
  { terms.in.macro
      { "{\bibetal}" }
      'bbl.et.al
    if$
  }
  
  FUNCTION {bbl.colon} { ": " }
  
  FUNCTION {bbl.wide.space} { "\quad " }
  
  FUNCTION {bbl.slash} { "//\allowbreak " }
  
  FUNCTION {bbl.sine.loco}
  { entry.lang lang.zh =
      { "[出版地不详]" }
      { "[S.l.]" }
    if$
  }
  
  FUNCTION {bbl.sine.nomine}
  { entry.lang lang.zh =
      { "[出版者不详]" }
      { "[s.n.]" }
    if$
  }
  
  FUNCTION {bbl.sine.loco.sine.nomine}
  { entry.lang lang.zh =
      { "[出版地不详: 出版者不详]" }
      { "[S.l.: s.n.]" }
    if$
  }
  
  FUNCTION {not}
  {   { #0 }
      { #1 }
    if$
  }
  
  FUNCTION {and}
  {   'skip$
      { pop$ #0 }
    if$
  }
  
  FUNCTION {or}
  {   { pop$ #1 }
      'skip$
    if$
  }
  
  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$
              { output.state after.slash =
                  { bbl.slash * write$
                    newline$
                  }
                  { add.period$ " " * write$ }
                if$
              }
            if$
          }
        if$
        mid.sentence 'output.state :=
      }
    if$
    s
  }
  
  FUNCTION {output}
  { duplicate$ empty$
      'pop$
      'output.nonnull
    if$
  }
  
  FUNCTION {output.after}
  { 't :=
    duplicate$ empty$
      'pop$
      { 's :=
        output.state mid.sentence =
          { t * write$ }
          { output.state after.block =
              { add.period$ write$
                newline$
                "\newblock " write$
              }
              { output.state before.all =
                  'write$
                  { output.state after.slash =
                      { bbl.slash * write$ }
                      { add.period$ " " * write$ }
                    if$
                  }
                if$
              }
            if$
            mid.sentence 'output.state :=
          }
        if$
        s
      }
    if$
  }
  
  FUNCTION {output.check}
  { 't :=
    duplicate$ empty$
      { pop$ "empty " t * " in " * cite$ * warning$ }
      'output.nonnull
    if$
  }
  
  FUNCTION {fin.entry}
  { add.period$
    write$
    show.english.translation entry.lang lang.zh = and
      { ")"
        write$
      }
      'skip$
    if$
    newline$
  }
  
  FUNCTION {new.block}
  { output.state before.all =
      'skip$
      { output.state after.slash =
          'skip$
          { after.block 'output.state := }
        if$
      }
    if$
  }
  
  FUNCTION {new.sentence}
  { output.state after.block =
      'skip$
      { output.state before.all =
          'skip$
          { output.state after.slash =
              'skip$
              { after.sentence 'output.state := }
            if$
          }
        if$
      }
    if$
  }
  
  FUNCTION {new.slash}
  { output.state before.all =
      'skip$
      { slash.for.extraction
          { after.slash 'output.state := }
          { after.block 'output.state := }
        if$
      }
    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 {italicize}
  { duplicate$ empty$
      { pop$ "" }
      { "\textit{" swap$ * "}" * }
    if$
  }
  
  INTEGERS { byte second.byte }
  
  INTEGERS { char.lang tmp.lang }
  
  STRINGS { tmp.str }
  
  FUNCTION {get.str.lang}
  { 'tmp.str :=
    lang.other 'tmp.lang :=
    #1 'charptr :=
    tmp.str text.length$ #1 + 'len :=
      { charptr len < }
      { tmp.str charptr #1 substring$ chr.to.int$ 'byte :=
        byte #128 <
          { charptr #1 + 'charptr :=
            byte #64 > byte #91 < and byte #96 > byte #123 < and or
              { lang.en 'char.lang := }
              { lang.other 'char.lang := }
            if$
          }
          { tmp.str charptr #1 + #1 substring$ chr.to.int$ 'second.byte :=
            byte #224 <
              { charptr #2 + 'charptr :=
                byte #207 > byte #212 < and
                byte #212 = second.byte #176 < and or
                  { lang.ru 'char.lang := }
                  { lang.other 'char.lang := }
                if$
              }
              { byte #240 <
                  { charptr #3 + 'charptr :=
                    byte #227 > byte #234 < and
                      { lang.zh 'char.lang := }
                      { byte #227 =
                          { second.byte #143 >
                              { lang.zh 'char.lang := }
                              { second.byte #128 > second.byte #132 < and
                                  { lang.ja 'char.lang := }
                                  { lang.other 'char.lang := }
                                if$
                              }
                            if$
                          }
                          { byte #239 =
                            second.byte #163 > second.byte #172 < and and
                              { lang.zh 'char.lang := }
                              { lang.other 'char.lang := }
                            if$
                          }
                        if$
                      }
                    if$
                  }
                  { charptr #4 + 'charptr :=
                    byte #240 = second.byte #159 > and
                      { lang.zh 'char.lang := }
                      { lang.other 'char.lang := }
                    if$
                  }
                if$
              }
            if$
          }
        if$
        char.lang tmp.lang >
          { char.lang 'tmp.lang := }
          'skip$
        if$
      }
    while$
    tmp.lang
  }
  
  FUNCTION {check.entry.lang}
  { author field.or.null
    title field.or.null *
    get.str.lang
  }
  
  STRINGS { entry.langid }
  
  FUNCTION {set.entry.lang}
  { "" 'entry.langid :=
    language empty$ not
      { language 'entry.langid := }
      'skip$
    if$
    langid empty$ not
      { langid 'entry.langid := }
      'skip$
    if$
    entry.langid empty$
      { check.entry.lang }
      { entry.langid "english" = entry.langid "american" = or entry.langid "british" = or
          { lang.en }
          { entry.langid "chinese" =
              { lang.zh }
              { entry.langid "japanese" =
                  { lang.ja }
                  { entry.langid "russian" =
                      { lang.ru }
                      { check.entry.lang }
                    if$
                  }
                if$
              }
            if$
          }
        if$
      }
    if$
    'entry.lang :=
  }
  
  FUNCTION {set.entry.numbered}
  { type$ "patent" =
    type$ "standard" = or
    type$ "techreport" = or
      { #1 'entry.numbered := }
      { #0 'entry.numbered := }
    if$
  }
  
  INTEGERS { nameptr namesleft numnames name.lang }
  
  FUNCTION {format.name}
  { "{vv~}{ll}{, jj}{, ff}" format.name$ 't :=
    t "others" =
      { bbl.et.al }
      { t get.str.lang 'name.lang :=
        name.lang lang.en =
          { t #1 "{vv~}{ll}{~f{~}}" format.name$
            uppercase.name
              { "u" change.case$ }
              'skip$
            if$
            t #1 "{, jj}" format.name$ *
          }
          { t #1 "{ll}{ff}" format.name$ }
        if$
      }
    if$
  }
  
  FUNCTION {format.names}
  { 's :=
    #1 'nameptr :=
    s num.names$ 'numnames :=
    ""
    numnames 'namesleft :=
      { namesleft #0 > }
      { s nameptr format.name bbl.et.al =
        numnames bibliography.et.al.min #1 - > nameptr bibliography.et.al.use.first > and or
          { ", " *
            bbl.et.al *
            #1 'namesleft :=
          }
          { nameptr #1 >
              { namesleft #1 = bbl.and "" = not and
                  { bbl.and * }
                  { ", " * }
                if$
              }
              'skip$
            if$
            s nameptr format.name *
          }
        if$
        nameptr #1 + 'nameptr :=
        namesleft #1 - 'namesleft :=
      }
    while$
  }
  
  FUNCTION {format.key}
  { empty$
      { key field.or.null }
      { "" }
    if$
  }
  
  FUNCTION {format.authors}
  { author empty$ not
      { author format.names }
      { "empty author in " cite$ * warning$
        ""
      }
    if$
  }
  
  FUNCTION {format.editors}
  { editor empty$
      { "" }
      { editor format.names }
    if$
  }
  
  FUNCTION {format.translators}
  { translator empty$
      { "" }
      { translator format.names
        entry.lang lang.zh =
          { translator num.names$ #3 >
              { "译" * }
              { ", 译" * }
            if$
          }
          'skip$
        if$
      }
    if$
  }
  
  FUNCTION {format.full.names}
  {'s :=
    #1 'nameptr :=
    s num.names$ 'numnames :=
    numnames 'namesleft :=
      { namesleft #0 > }
      { s nameptr "{vv~}{ll}{, jj}{, ff}" format.name$ 't :=
        t get.str.lang 'name.lang :=
        name.lang lang.en =
          { t #1 "{vv~}{ll}" format.name$ 't := }
          { t #1 "{ll}{ff}" format.name$ 't := }
        if$
        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 {author.editor.full}
  { author empty$
      { editor empty$
          { "" }
          { editor format.full.names }
        if$
      }
      { author format.full.names }
    if$
  }
  
  FUNCTION {author.full}
  { author empty$
      { "" }
      { author format.full.names }
    if$
  }
  
  FUNCTION {editor.full}
  { editor empty$
      { "" }
      { editor format.full.names }
    if$
  }
  
  FUNCTION {make.full.names}
  { type$ "book" =
    type$ "inbook" =
    or
      'author.editor.full
      { type$ "collection" =
        type$ "proceedings" =
        or
          'editor.full
          'author.full
        if$
      }
    if$
  }
  
  FUNCTION {output.bibitem}
  { newline$
    "\bibitem[" write$
    label ")" *
    make.full.names duplicate$ short.list =
       { pop$ }
       { * }
    if$
    's :=
    s text.length$ 'charptr :=
      { charptr #0 > s charptr #1 substring$ "[" = not and }
      { charptr #1 - 'charptr := }
    while$
    charptr #0 >
      { "{" s * "}" * }
      { s }
    if$
    "]{" * write$
    cite$ write$
    "}" write$
    newline$
    ""
    before.all 'output.state :=
  }
  
  FUNCTION {change.sentence.case}
  { entry.lang lang.en =
      { "t" change.case$ }
      'skip$
    if$
  }
  
  FUNCTION {add.link}
  { url empty$ not
      { "\href{" url * "}{" * swap$ * "}" * }
      { doi empty$ not
          { "\href{http://dx.doi.org/" doi * "}{" * swap$ * "}" * }
          'skip$
        if$
      }
    if$
  }
  
  FUNCTION {format.title}
  { title empty$
      { "" }
      { title
        sentence.case.title
          'change.sentence.case
          'skip$
        if$
        entry.numbered number empty$ not and
          { bbl.colon * number * }
          'skip$
        if$
        link.title
          'add.link
          'skip$
        if$
      }
    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 {is.digit}
  { duplicate$ empty$
      { pop$ #0 }
      { chr.to.int$
        duplicate$ "0" chr.to.int$ <
        { pop$ #0 }
        { "9" chr.to.int$ >
            { #0 }
            { #1 }
          if$
        }
      if$
      }
    if$
  }
  
  FUNCTION {is.number}
  { 's :=
    s empty$
      { #0 }
      { s text.length$ 'charptr :=
          { charptr #0 >
            s charptr #1 substring$ is.digit
            and
          }
          { charptr #1 - 'charptr := }
        while$
        charptr not
      }
    if$
  }
  
  FUNCTION {format.volume}
  { volume empty$ not
      { volume is.number
          { entry.lang lang.zh =
              { "第 " volume * " 卷" * }
              { "volume" volume tie.or.space.connect }
            if$
          }
          { volume }
        if$
      }
      { "" }
    if$
  }
  
  FUNCTION {format.number}
  { number empty$ not
      { number is.number
          { entry.lang lang.zh =
              { "第 " number * " 册" * }
              { "number" number tie.or.space.connect }
            if$
          }
          { number }
        if$
      }
      { "" }
    if$
  }
  
  FUNCTION {format.volume.number}
  { volume empty$ not
      { format.volume }
      { format.number }
    if$
  }
  
  FUNCTION {format.title.vol.num}
  { title
    sentence.case.title
      'change.sentence.case
      'skip$
    if$
    entry.numbered
      { number empty$ not
          { bbl.colon * number * }
          'skip$
        if$
      }
      { format.volume.number 's :=
        s empty$ not
          { bbl.colon * s * }
          'skip$
        if$
      }
    if$
  }
  
  FUNCTION {format.series.vol.num.title}
  { format.volume.number 's :=
    series empty$ not
      { series
        sentence.case.title
          'change.sentence.case
          'skip$
        if$
        entry.numbered
          { bbl.wide.space * }
          { bbl.colon *
            s empty$ not
              { s * bbl.wide.space * }
              'skip$
            if$
          }
        if$
        title *
        sentence.case.title
          'change.sentence.case
          'skip$
        if$
        entry.numbered number empty$ not and
          { bbl.colon * number * }
          'skip$
        if$
      }
      { format.title.vol.num }
    if$
    link.title
      'add.link
      'skip$
    if$
  }
  
  FUNCTION {format.booktitle.vol.num}
  { booktitle
    entry.numbered
      'skip$
      { format.volume.number 's :=
        s empty$ not
          { bbl.colon * s * }
          'skip$
        if$
      }
    if$
  }
  
  FUNCTION {format.series.vol.num.booktitle}
  { format.volume.number 's :=
    series empty$ not
      { series bbl.colon *
        entry.numbered not s empty$ not and
          { s * bbl.wide.space * }
          'skip$
        if$
        booktitle *
      }
      { format.booktitle.vol.num }
    if$
    in.booktitle
      { duplicate$ empty$ not entry.lang lang.en = and
          { "In: " swap$ * }
          'skip$
        if$
      }
      'skip$
    if$
  }
  
  FUNCTION {remove.period}
  { 't :=
    "" 's :=
      { t empty$ not }
      { t #1 #1 substring$ 'tmp.str :=
        tmp.str "." = not
          { s tmp.str * 's := }
          'skip$
        if$
        t #2 global.max$ substring$ 't :=
      }
    while$
    s
  }
  
  FUNCTION {abbreviate}
  { remove.period
    't :=
    t "l" change.case$ 's :=
    ""
    s "physical review letters" =
      { "Phys Rev Lett" }
      'skip$
    if$
    's :=
    s empty$
      { t }
      { pop$ s }
    if$
  }
  
  FUNCTION {format.journal}
  { ""
    short.journal
      { shortjournal empty$ not
          { shortjournal * }
          { journal empty$ not
              { journal * abbreviate }
              { journaltitle empty$ not
                  { journaltitle * abbreviate }
                  'skip$
                if$
              }
            if$
          }
        if$
      }
      { journal empty$ not
          { journal * }
          { journaltitle empty$ not
              { journaltitle * }
              'skip$
            if$
          }
        if$
      }
    if$
    duplicate$ empty$ not
      { italic.journal entry.lang lang.en = and
          'italicize
          'skip$
        if$
      }
      'skip$
    if$
  }
  
  FUNCTION {set.entry.mark}
  { entry.mark empty$ not
      'pop$
      { mark empty$ not
          { pop$ mark 'entry.mark := }
          { 'entry.mark := }
        if$
      }
    if$
  }
  
  FUNCTION {format.mark}
  { show.mark
      { entry.mark
        show.medium.type
          { medium empty$ not
              { "/" * medium * }
              { entry.is.electronic
                  { "/OL" * }
                  'skip$
                if$
              }
            if$
          }
          'skip$
        if$
        'entry.mark :=
        space.before.mark
          { " [" entry.mark * "]" * }
          { "[" entry.mark * "]" * }
        if$
      }
      { "" }
    if$
  }
  
  FUNCTION {num.to.ordinal}
  { duplicate$ text.length$ 'charptr :=
    duplicate$ charptr #1 substring$ 's :=
    s "1" =
      { "st" * }
      { s "2" =
          { "nd" * }
          { s "3" =
              { "rd" * }
              { "th" * }
            if$
          }
        if$
      }
    if$
  }
  
  FUNCTION {format.edition}
  { edition empty$
      { "" }
      { edition is.number
          { entry.lang lang.zh =
              { edition " 版" * }
              { edition num.to.ordinal " ed." * }
            if$
          }
          { entry.lang lang.en =
              { edition change.sentence.case 's :=
                s "Revised" = s "Revised edition" = or
                  { "Rev. ed." }
                  { s " ed." *}
                if$
              }
              { edition }
            if$
          }
        if$
      }
    if$
  }
  
  FUNCTION {format.publisher}
  { publisher empty$ not
      { publisher }
      { school empty$ not
          { school }
          { organization empty$ not
              { organization }
              { institution empty$ not
                  { institution }
                  { "" }
                if$
              }
            if$
          }
        if$
      }
    if$
  }
  
  FUNCTION {format.address.publisher}
  { address empty$ not
      { address }
      { location empty$ not
          { location }
          { "" }
        if$
      }
    if$
    duplicate$ empty$ not
      { format.publisher empty$ not
          { bbl.colon * format.publisher * }
          { entry.is.electronic not show.missing.address.publisher and
              { bbl.colon * bbl.sine.nomine * }
              'skip$
            if$
          }
        if$
      }
      { pop$
        entry.is.electronic not show.missing.address.publisher and
          { format.publisher empty$ not
              { bbl.sine.loco bbl.colon * format.publisher * }
              { bbl.sine.loco.sine.nomine }
            if$
          }
          { format.publisher empty$ not
              { format.publisher }
              { "" }
            if$
          }
        if$
      }
    if$
  }
  
  FUNCTION {extract.before.dash}
  { duplicate$ empty$
      { pop$ "" }
      { 's :=
        #1 'charptr :=
        s text.length$ #1 + 'len :=
          { charptr len <
            s charptr #1 substring$ "-" = not
            and
          }
          { charptr #1 + 'charptr := }
        while$
        s #1 charptr #1 - substring$
      }
    if$
  }
  
  FUNCTION {extract.after.dash}
  { duplicate$ empty$
      { pop$ "" }
      { 's :=
        #1 'charptr :=
        s text.length$ #1 + 'len :=
          { charptr len <
            s charptr #1 substring$ "-" = not
            and
          }
          { charptr #1 + 'charptr := }
        while$
          { charptr len <
            s charptr #1 substring$ "-" =
            and
          }
          { charptr #1 + 'charptr := }
        while$
        s charptr global.max$ substring$
      }
    if$
  }
  
  FUNCTION {contains.dash}
  { duplicate$ empty$
      { pop$ #0 }
      { 's :=
          { s empty$ not
            s #1 #1 substring$ "-" = not
            and
          }
          { s #2 global.max$ substring$ 's := }
        while$
        s empty$ not
      }
    if$
  }
  
  FUNCTION {format.year}
  { year empty$ not
      { year extract.before.dash }
      { date empty$ not
          { date extract.before.dash }
          { "empty year in " cite$ * warning$
            urldate empty$ not
              { "[" urldate extract.before.dash * "]" * }
              { "" }
            if$
          }
        if$
      }
    if$
    extra.label *
  }
  
  FUNCTION {format.date}
  { type$ "patent" = type$ "newspaper" = or
    date empty$ not and
      { date }
      { year }
    if$
  }
  
  FUNCTION {format.editdate}
  { date empty$ not
      { "\allowbreak(" date * ")" * }
      { "" }
    if$
  }
  
  FUNCTION {format.urldate}
  { urldate empty$ not
    show.urldate show.url and is.pure.electronic or and
    url empty$ not and
      { "\allowbreak[" urldate * "]" * }
      { "" }
    if$
  }
  
  FUNCTION {hyphenate}
  { 't :=
    ""
      { t empty$ not }
      { t #1 #1 substring$ "-" =
          { "-" *
              { t #1 #1 substring$ "-" = }
              { t #2 global.max$ substring$ 't := }
            while$
          }
          { t #1 #1 substring$ *
            t #2 global.max$ substring$ 't :=
          }
        if$
      }
    while$
  }
  
  FUNCTION {format.pages}
  { pages empty$
      { "" }
      { pages hyphenate }
    if$
  }
  
  FUNCTION {format.extracted.pages}
  { pages empty$
      { "" }
      { pages
        only.start.page
          'extract.before.dash
          'hyphenate
        if$
      }
    if$
  }
  
  FUNCTION {format.journal.volume}
  { volume empty$ not
      { bold.journal.volume
          { "\textbf{" volume * "}" * }
          { volume }
        if$
      }
      { "" }
    if$
  }
  
  FUNCTION {format.journal.number}
  { number empty$ not
      { "\penalty0 (" number * ")" * }
      { "" }
    if$
  }
  
  FUNCTION {format.journal.pages}
  { pages empty$
      { "" }
      { ": "
        format.extracted.pages *
      }
    if$
  }
  
  FUNCTION {format.periodical.year.volume.number}
  { year empty$ not
      { year extract.before.dash }
      { "empty year in periodical " cite$ * warning$ }
    if$
    volume empty$ not
      { ", " * volume extract.before.dash * }
      'skip$
    if$
    number empty$ not
      { "\penalty0 (" * number extract.before.dash * ")" * }
      'skip$
    if$
    year contains.dash
      { "--" *
        year extract.after.dash empty$
        volume extract.after.dash empty$ and
        number extract.after.dash empty$ and not
          { year extract.after.dash empty$ not
              { year extract.after.dash * }
              { year extract.before.dash * }
            if$
            volume empty$ not
              { ", " * volume extract.after.dash * }
              'skip$
            if$
            number empty$ not
              { "\penalty0 (" * number extract.after.dash * ")" * }
              'skip$
            if$
          }
          'skip$
        if$
      }
      'skip$
    if$
  }
  
  FUNCTION {check.url}
  { url empty$ not
      { "\url{" url * "}" * 'entry.url :=
        #1 'entry.is.electronic :=
      }
      { howpublished empty$ not
          { howpublished #1 #5 substring$ "\url{" =
              { howpublished 'entry.url :=
                #1 'entry.is.electronic :=
              }
              'skip$
            if$
          }
          { note empty$ not
              { note #1 #5 substring$ "\url{" =
                  { note 'entry.url :=
                    #1 'entry.is.electronic :=
                  }
                  'skip$
                if$
              }
              'skip$
            if$
          }
        if$
      }
    if$
  }
  
  FUNCTION {format.url}
  { entry.url
  }
  
  FUNCTION {output.url}
  { entry.url empty$ not
      { new.block
        entry.url output
      }
      'skip$
    if$
  }
  
  FUNCTION {check.doi}
  { doi empty$ not
      { #1 'entry.is.electronic := }
      'skip$
    if$
  }
  
  FUNCTION {is.in.url}
  { 's :=
    s empty$
      { #1 }
      { entry.url empty$
          { #0 }
          { s text.length$ 'len :=
            entry.url text.length$ 'charptr :=
              { entry.url charptr len substring$ s = not
                charptr #0 >
                and
              }
              { charptr #1 - 'charptr := }
            while$
            charptr
          }
        if$
      }
    if$
  }
  
  FUNCTION {format.doi}
  { ""
    doi empty$ not
      { "" 's :=
        doi 't :=
        #0 'numnames :=
          { t empty$ not}
          { t #1 #1 substring$ 'tmp.str :=
            tmp.str "," = tmp.str " " = or t #2 #1 substring$ empty$ or
              { t #2 #1 substring$ empty$
                  { s tmp.str * 's := }
                  'skip$
                if$
                s empty$ s is.in.url or
                  'skip$
                  { numnames #1 + 'numnames :=
                    numnames #1 >
                      { ", " * }
                      { "DOI: " * }
                    if$
                    "\doi{" s * "}" * *
                  }
                if$
                "" 's :=
              }
              { s tmp.str * 's := }
            if$
            t #2 global.max$ substring$ 't :=
          }
        while$
      }
      'skip$
    if$
  }
  
  FUNCTION {output.doi}
  { doi empty$ not show.doi and
    show.english.translation entry.lang lang.zh = and not and
      { new.block
        format.doi output
      }
      'skip$
    if$
  }
  
  FUNCTION {check.electronic}
  { "" 'entry.url :=
    #0 'entry.is.electronic :=
      'check.doi
      'skip$
    if$
      'check.url
      'skip$
    if$
    medium empty$ not
      { medium "MT" = medium "DK" = or medium "CD" = or medium "OL" = or
          { #1 'entry.is.electronic := }
          'skip$
        if$
      }
      'skip$
    if$
  }
  
  FUNCTION {format.eprint}
  { eprinttype empty$ not
      { eprinttype }
      { archivePrefix empty$ not
          { archivePrefix }
          { "" }
        if$
      }
    if$
    's :=
    s empty$ not
      { s ": \eprint{" *
        url empty$ not
          { url }
          { "https://" s "l" change.case$ * ".org/abs/" * eprint * }
        if$
        * "}{" *
        eprint * "}" *
      }
      { eprint }
    if$
  }
  
  FUNCTION {output.eprint}
  { show.preprint eprint empty$ not and
      { new.block
        format.eprint output
      }
      'skip$
    if$
  }
  
  FUNCTION {format.note}
  { note empty$ not show.note and
      { note }
      { "" }
    if$
  }
  
  FUNCTION {output.translation}
  { show.english.translation entry.lang lang.zh = and
      { translation empty$ not
          { translation }
          { "[English translation missing!]" }
        if$
        " (in Chinese)" * output
        write$
        format.doi duplicate$ empty$ not
          { newline$
            write$
          }
          'pop$
        if$
        " \\" write$
        newline$
        "(" write$
        ""
        before.all 'output.state :=
      }
      'skip$
    if$
  }
  
  FUNCTION {empty.misc.check}
  { author empty$ title empty$
    year empty$
    and and
    key empty$ not and
      { "all relevant fields are empty in " cite$ * warning$ }
      'skip$
    if$
  }
  
  FUNCTION {monograph}
  { output.bibitem
    output.translation
    author empty$ not
      { format.authors }
      { editor empty$ not
          { format.editors }
          { "empty author and editor in " cite$ * warning$
            ""
          }
        if$
      }
    if$
    output
    year.after.author
      { period.after.author
          'new.sentence
          'skip$
        if$
        format.year "year" output.check
      }
      'skip$
    if$
    new.block
    format.series.vol.num.title "title" output.check
    "M" set.entry.mark
    format.mark "" output.after
    new.block
    format.translators output
    new.sentence
    format.edition output
    new.block
    format.address.publisher output
    year.after.author not
      { format.year "year" output.check }
      'skip$
    if$
    format.pages bbl.colon output.after
    format.urldate "" output.after
    output.url
    output.doi
    new.block
    format.note output
    fin.entry
  }
  
  FUNCTION {incollection}
  { output.bibitem
    output.translation
    format.authors output
    author format.key output
    year.after.author
      { period.after.author
          'new.sentence
          'skip$
        if$
        format.year "year" output.check
      }
      'skip$
    if$
    new.block
    format.title "title" output.check
    "M" set.entry.mark
    format.mark "" output.after
    new.block
    format.translators output
    new.slash
    format.editors output
    new.block
    format.series.vol.num.booktitle "booktitle" output.check
    new.block
    format.edition output
    new.block
    format.address.publisher output
    year.after.author not
      { format.year "year" output.check }
      'skip$
    if$
    format.extracted.pages bbl.colon output.after
    format.urldate "" output.after
    output.url
    output.doi
    new.block
    format.note output
    fin.entry
  }
  
  FUNCTION {periodical}
  { output.bibitem
    output.translation
    format.authors output
    author format.key output
    year.after.author
      { period.after.author
          'new.sentence
          'skip$
        if$
        format.year "year" output.check
      }
      'skip$
    if$
    new.block
    format.title "title" output.check
    "J" set.entry.mark
    format.mark "" output.after
    new.block
    format.periodical.year.volume.number output
    new.block
    format.address.publisher output
    year.after.author not
      { format.date "year" output.check }
      'skip$
    if$
    format.urldate "" output.after
    output.url
    output.doi
    new.block
    format.note output
    fin.entry
  }
  
  FUNCTION {article}
  { output.bibitem
    output.translation
    format.authors output
    author format.key output
    year.after.author
      { period.after.author
          'new.sentence
          'skip$
        if$
        format.year "year" output.check
      }
      'skip$
    if$
    new.block
    title.in.journal
      { format.title "title" output.check
        "J" set.entry.mark
        format.mark "" output.after
        new.block
      }
      'skip$
    if$
    format.journal "journal" output.check
    year.after.author not
      { format.date "year" output.check }
      'skip$
    if$
    format.journal.volume output
    format.journal.number "" output.after
    format.journal.pages "" output.after
    format.urldate "" output.after
    output.url
    output.doi
    new.block
    format.note output
    fin.entry
  }
  
  FUNCTION {patent}
  { output.bibitem
    output.translation
    format.authors output
    author format.key output
    year.after.author
      { period.after.author
          'new.sentence
          'skip$
        if$
        format.year "year" output.check
      }
      'skip$
    if$
    new.block
    format.title "title" output.check
    "P" set.entry.mark
    format.mark "" output.after
    new.block
    format.date "year" output.check
    format.urldate "" output.after
    output.url
    output.doi
    new.block
    format.note output
    fin.entry
  }
  
  FUNCTION {electronic}
  { #1 #1 check.electronic
    #1 'entry.is.electronic :=
    #1 'is.pure.electronic :=
    output.bibitem
    output.translation
    format.authors output
    author format.key output
    year.after.author
      { period.after.author
          'new.sentence
          'skip$
        if$
        format.year "year" output.check
      }
      'skip$
    if$
    new.block
    format.series.vol.num.title "title" output.check
    "EB" set.entry.mark
    format.mark "" output.after
    new.block
    format.address.publisher output
    year.after.author not
      { date empty$
          { format.date output }
          'skip$
        if$
      }
      'skip$
    if$
    format.pages bbl.colon output.after
    format.editdate "" output.after
    format.urldate "" output.after
    output.url
    output.doi
    new.block
    format.note output
    fin.entry
  }
  
  FUNCTION {preprint}
  { output.bibitem
    output.translation
    author empty$ not
      { format.authors }
      { editor empty$ not
          { format.editors }
          { "empty author and editor in " cite$ * warning$
            ""
          }
        if$
      }
    if$
    output
    year.after.author
      { period.after.author
          'new.sentence
          'skip$
        if$
        format.year "year" output.check
      }
      'skip$
    if$
    new.block
    title.in.journal
      { format.series.vol.num.title "title" output.check
        "Z" set.entry.mark
        format.mark "" output.after
        new.block
      }
      'skip$
    if$
    format.translators output
    new.sentence
    format.edition output
    new.block
    output.eprint
    year.after.author not
      { format.year "year" output.check }
      'skip$
    if$
    format.pages bbl.colon output.after
    format.urldate "" output.after
    output.url
    new.block
    format.note output
    fin.entry
  }
  
  FUNCTION {misc}
  { journal empty$ not
      'article
      { booktitle empty$ not
          'incollection
          { publisher empty$ not
              'monograph
              { eprint empty$ not show.preprint and
                  'preprint
                  { entry.is.electronic
                      'electronic
                      {
                        "Z" set.entry.mark
                        monograph
                      }
                    if$
                  }
                if$
              }
            if$
          }
        if$
      }
    if$
    empty.misc.check
  }
  
  FUNCTION {archive}
  { "A" set.entry.mark
    misc
  }
  
  FUNCTION {book} { monograph }
  
  FUNCTION {booklet} { book }
  
  FUNCTION {collection}
  { "G" set.entry.mark
    monograph
  }
  
  FUNCTION {database}
  { "DB" set.entry.mark
    electronic
  }
  
  FUNCTION {dataset}
  { "DS" set.entry.mark
    electronic
  }
  
  FUNCTION {inbook} { book }
  
  FUNCTION {inproceedings}
  { "C" set.entry.mark
    incollection
  }
  
  FUNCTION {conference} { inproceedings }
  
  FUNCTION {map}
  { "CM" set.entry.mark
    misc
  }
  
  FUNCTION {manual} { monograph }
  
  FUNCTION {mastersthesis}
  { "D" set.entry.mark
    monograph
  }
  
  FUNCTION {newspaper}
  { "N" set.entry.mark
    article
  }
  
  FUNCTION {online}
  { "EB" set.entry.mark
    electronic
  }
  
  FUNCTION {phdthesis} { mastersthesis }
  
  FUNCTION {proceedings}
  { "C" set.entry.mark
    monograph
  }
  
  FUNCTION {software}
  { "CP" set.entry.mark
    electronic
  }
  
  FUNCTION {standard}
  { "S" set.entry.mark
    misc
  }
  
  FUNCTION {techreport}
  { "R" set.entry.mark
    misc
  }
  
  FUNCTION {unpublished} { misc }
  
  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"}
  
  FUNCTION {sortify}
  { purify$
    "l" change.case$
  }
  
  FUNCTION {chop.word}
  { 's :=
    'len :=
    s #1 len substring$ =
      { s len #1 + global.max$ substring$ }
      's
    if$
  }
  
  FUNCTION {format.lab.name}
  { "{vv~}{ll}{, jj}{, ff}" format.name$ 't :=
    t "others" =
      { citation.et.al }
      { t get.str.lang 'name.lang :=
        name.lang lang.zh = name.lang lang.ja = or
          { t #1 "{ll}{ff}" format.name$ }
          { t #1 "{vv~}{ll}" format.name$ }
        if$
      }
    if$
  }
  
  FUNCTION {format.lab.names}
  { 's :=
    #1 'nameptr :=
    s num.names$ 'numnames :=
    ""
    numnames 'namesleft :=
      { namesleft #0 > }
      { s nameptr format.lab.name citation.et.al =
        numnames citation.et.al.min #1 - > nameptr citation.et.al.use.first > and or
          { bbl.space *
            citation.et.al *
            #1 'namesleft :=
          }
          { nameptr #1 >
              { namesleft #1 = citation.and "" = not and
                  { citation.and * }
                  { ", " * }
                if$
              }
              'skip$
            if$
            s nameptr format.lab.name *
          }
        if$
        nameptr #1 + 'nameptr :=
        namesleft #1 - 'namesleft :=
      }
    while$
  }
  
  FUNCTION {author.key.label}
  { author empty$
      { key empty$
          { cite$ #1 #3 substring$ }
          'key
        if$
      }
      { author format.lab.names }
    if$
  }
  
  FUNCTION {author.editor.key.label}
  { author empty$
      { editor empty$
          { key empty$
              { cite$ #1 #3 substring$ }
              'key
            if$
          }
          { editor format.lab.names }
        if$
      }
      { author format.lab.names }
    if$
  }
  
  FUNCTION {author.key.organization.label}
  { author empty$
      { key empty$
          { organization empty$
              { cite$ #1 #3 substring$ }
              { "The " #4 organization chop.word #3 text.prefix$ }
            if$
          }
          'key
        if$
      }
      { author format.lab.names }
    if$
  }
  
  FUNCTION {editor.key.organization.label}
  { editor empty$
      { key empty$
          { organization empty$
              { cite$ #1 #3 substring$ }
              { "The " #4 organization chop.word #3 text.prefix$ }
            if$
          }
          'key
        if$
      }
      { editor format.lab.names }
    if$
  }
  
  FUNCTION {calc.short.authors}
  { type$ "book" =
    type$ "inbook" =
    or
      'author.editor.key.label
      { type$ "collection" =
        type$ "proceedings" =
        or
          { editor empty$ not
              'editor.key.organization.label
              'author.key.organization.label
            if$
          }
          'author.key.label
        if$
      }
    if$
    'short.list :=
  }
  
  FUNCTION {calc.label}
  { calc.short.authors
    short.list
    "("
    *
    format.year duplicate$ empty$
    short.list key field.or.null = or
       { pop$ "" }
       'skip$
    if$
    *
    'label :=
  }
  
  INTEGERS { seq.num }
  
  FUNCTION {init.seq}
  { #0 'seq.num :=}
  
  FUNCTION {int.to.fix}
  { "000000000" swap$ int.to.str$ *
    #-1 #10 substring$
  }
  
  FUNCTION {presort}
  { set.entry.lang
    set.entry.numbered
    show.url show.doi check.electronic
    #0 'is.pure.electronic :=
    calc.label
    label sortify
    "    "
    *
    seq.num #1 + 'seq.num :=
    seq.num  int.to.fix
    'sort.label :=
    sort.label *
    #1 entry.max$ substring$
    'sort.key$ :=
  }
  
  STRINGS { longest.label last.label next.extra }
  
  INTEGERS { longest.label.width last.extra.num number.label }
  
  FUNCTION {initialize.longest.label}
  { "" 'longest.label :=
    #0 int.to.chr$ 'last.label :=
    "" 'next.extra :=
    #0 'longest.label.width :=
    #0 'last.extra.num :=
    #0 'number.label :=
  }
  
  FUNCTION {forward.pass}
  { last.label label =
      { last.extra.num #1 + 'last.extra.num :=
        last.extra.num int.to.chr$ 'extra.label :=
      }
      { "a" chr.to.int$ 'last.extra.num :=
        "" 'extra.label :=
        label 'last.label :=
      }
    if$
    number.label #1 + 'number.label :=
  }
  
  FUNCTION {reverse.pass}
  { next.extra "b" =
      { "a" 'extra.label := }
      'skip$
    if$
    extra.label 'next.extra :=
    extra.label
    duplicate$ empty$
      'skip$
      { "{\natexlab{" swap$ * "}}" * }
    if$
    'extra.label :=
    label extra.label * 'label :=
  }
  
  FUNCTION {bib.sort.order}
  { sort.label  'sort.key$ :=
  }
  
  FUNCTION {begin.bib}
  {   preamble$ empty$
      'skip$
      { preamble$ write$ newline$ }
    if$
    "\begin{thebibliography}{" number.label int.to.str$ * "}" *
    write$ newline$
    terms.in.macro
      { "\providecommand{\biband}{和}"
        write$ newline$
        "\providecommand{\bibetal}{等}"
        write$ newline$
      }
      'skip$
    if$
    "\providecommand{\natexlab}[1]{#1}"
    write$ newline$
    "\providecommand{\url}[1]{#1}"
    write$ newline$
    "\expandafter\ifx\csname urlstyle\endcsname\relax\else"
    write$ newline$
    "  \urlstyle{same}\fi"
    write$ newline$
    "\expandafter\ifx\csname href\endcsname\relax"
    write$ newline$
    "  \DeclareUrlCommand\doi{\urlstyle{rm}}"
    write$ newline$
    "  \def\eprint#1#2{#2}"
        write$ newline$
    "\else"
    write$ newline$
    "  \def\doi#1{\href{https://doi.org/#1}{\nolinkurl{#1}}}"
    write$ newline$
    "  \let\eprint\href"
        write$ newline$
    "\fi"
        write$ newline$
      }
  
  FUNCTION {end.bib}
  { newline$
    "\end{thebibliography}" write$ newline$
  }
  
  READ
  
  EXECUTE {init.state.consts}
  
  EXECUTE {load.config}
  
  EXECUTE {init.seq}
  
  ITERATE {presort}
  
  SORT
  
  EXECUTE {initialize.longest.label}
  
  ITERATE {forward.pass}
  
  REVERSE {reverse.pass}
  
  ITERATE {bib.sort.order}
  
  SORT
  
  EXECUTE {begin.bib}
  
  ITERATE {call.type$}
  
  EXECUTE {end.bib}