commit bd1b5d580b44089ae239f6c49eb75639aa752627
Author: Juergen Spitzmueller <sp...@lyx.org>
Date:   Tue Jan 3 15:35:57 2017 +0100

    Add some documentation to the rather esoteric style files
---
 lib/citeengines/basic.citeengine  |   21 ++++++--
 lib/citeengines/natbib.citeengine |   96 +++++++++++++++++++++++++++----------
 2 files changed, 85 insertions(+), 32 deletions(-)

diff --git a/lib/citeengines/basic.citeengine b/lib/citeengines/basic.citeengine
index 26d5ba3..685e524 100644
--- a/lib/citeengines/basic.citeengine
+++ b/lib/citeengines/basic.citeengine
@@ -19,27 +19,36 @@ CiteEngine default
 End
 
 CiteFormat default
-       # translatable bits
+       # Translatable bits
        _notcited not cited
        _addtobib Add to bibliography only.
 
-       # macros
+       # Macros
        !open [
        !sep ,
        !close ]
 
+       # A link that lets us jump to the bibliography entry in LyXHTML
+       # %clean:key% will be substituted by the cite key to give a unique id
        !startlink {!<a href='#LyXCite-%clean:key%'>!}
        !endlink {!</a>!}
 
-       !cite 
%!startlink%{%label%[[%label%]][[{%numericallabel%[[%numericallabel%]][[#%key%]]}]]}%!endlink%%!nextcite%
+       # Start citation: ID...
+       !makecite 
%!startlink%{%label%[[%label%]][[{%numericallabel%[[%numericallabel%]][[#%key%]]}]]}%!endlink%%!nextcite%
 
-       !nextcite {%next%[[%!sep% %!cite%]]}
+       # Follow-up citations: ..., NextID...
+       !nextcite {%next%[[%!sep% %!makecite%]]}
+       # FIXME: what is this?
        !nexthashkey {%next%[[%!sep% #%key%%!nexthashkey%]]}
+       # Simply the cite key(s): Key, NextKey, ...
        !nextkey {%next%[[%!sep% %key%%!nextkey%]]}
 
+       # Postnote: ", p. xx"
        !textafter {%textafter%[[, %textafter%]]}
 
-       # cite styles
-       cite %!open%{%dialog%[[#ID]][[%!cite%]]}%!textafter%%!close%
+       ## The actual cite styles ##
+       # \cite: [ID, NextID, ..., p. xx]
+       cite %!open%{%dialog%[[#ID]][[%!makecite%]]}%!textafter%%!close%
+       # \nocite: "Add to bibliography only." (dialog) / "Key, Nextkey (not 
cited)" (inset)
        nocite {%dialog%[[%_addtobib%]][[%key%%!nextkey% (%_notcited%)]]}
 End
diff --git a/lib/citeengines/natbib.citeengine 
b/lib/citeengines/natbib.citeengine
index 9a24c80..f693437 100644
--- a/lib/citeengines/natbib.citeengine
+++ b/lib/citeengines/natbib.citeengine
@@ -40,68 +40,112 @@ CiteEngine numerical
 End
 
 CiteFormat default
-       # translatable bits
+       # Translatable bits
        _notcited not cited
        _addtobib Add to bibliography only.
 
-       # macros
+       # A link that lets us jump to the bibliography entry in LyXHTML
+       # %clean:key% will be substituted by the cite key to give a unique id
        !startlink {!<a href='#LyXCite-%clean:key%'>!}
        !endlink {!</a>!}
 
-       !nextauthor {%next%[[%!sep% 
%!startlink%%!abbrvauthor%%!endlink%%!nextauthor%]]}
-       !nextkey {%next%[[%!sep% %key%%!nextkey%]]}
-       !nextyear {%next%[[%!sep% %!startlink%%!year%%!endlink%%!nextyear%]]}
-
+       # Abbreviated author (with et al.) or "??" if there is no author
        !abbrvauthor {%abbrvauthor%[[%abbrvauthor%]][[??]]}
+       # Prenote: "cf. "
        !textbefore {%textbefore%[[%textbefore% ]]}
+       # Postnote: ", p. xx"
        !textafter {%textafter%[[, %textafter%]]}
+       # Add a year if it exists (else "??") and possibly a modifier (as in 
2017a)
        !year {%year%[[%year%]][[??]]}{%modifier%[[%modifier%]]}
 
-       # cite styles
-       citet %!citet%%!textafter%%!close%
-       citealt %!citealt%%!textafter%
+       # ...; Author...
+       !nextauthor {%next%[[%!sep% 
%!startlink%%!abbrvauthor%%!endlink%%!nextauthor%]]}
+       # ..., CiteKey...
+       !nextkey {%next%[[%!sep% %key%%!nextkey%]]}
+       # ..., Year...
+       !nextyear {%next%[[%!sep% %!startlink%%!year%%!endlink%%!nextyear%]]}
+
+       ## The actual cite styles (identical in authoryear and numerical except 
for the separator) ##
+       # (cf. Year; NextYear, p. xx) [Authoryear] / (cf. Year, NextYear, p. 
xx) [Numerical]
        citeyearpar 
%!open%%!textbefore%%!startlink%%!year%%!endlink%%!nextyear%%!textafter%%!close%
+       # Add to bibliography only. / [ID] (not cited)
        nocite {%dialog%[[%_addtobib%]][[%key%%!nextkey% (%_notcited%)]]}
 End
 
 CiteFormat authoryear
+       # Macros
        !open (
        !sep ;
        !close )
 
-       !citet %!startlink%%!abbrvauthor%%!endlink% 
%!open%%!textbefore%%!year%%!nextcitet%
-       !citealt %!startlink%%!abbrvauthor% 
%!textbefore%%!year%%!endlink%%!nextcitealt%
-       !citealp %!startlink%%!abbrvauthor%, %!year%%!endlink%%!nextcitealp%
-
-       !nextcitet {%next%[[%!close%%!sep% %!citet%]]}
-       !nextcitealt {%next%[[%!sep% %!citealt%]]}
-       !nextcitealp {%next%[[%!sep% %!citealp%]]}
-
-       cite %!citet%%!textafter%%!close%
-       citep %!open%%!textbefore%%!citealp%%!textafter%%!close%
-       citealp %!textbefore%%!citealp%%!textafter%
+       # Author et al. (cf. Year...
+       !makecitet %!startlink%%!abbrvauthor%%!endlink% 
%!open%%!textbefore%%!year%%!nextcitet%
+       # Author et al. cf. Year... [sic!]
+       !makecitealt %!startlink%%!abbrvauthor% 
%!textbefore%%!year%%!endlink%%!nextcitealt%
+       # Author et al., Year...
+       !makecitealp %!startlink%%!abbrvauthor%, %!year%%!endlink%%!nextcitealp%
+
+       # ...); Nextauthor (Year...
+       !nextcitet {%next%[[%!close%%!sep% %!startlink%%!abbrvauthor%%!endlink% 
%!open%%!year%%!nextcitet%]]}
+       # ...; NextAuthor et al. Year...
+       !nextcitealt {%next%[[%!sep% %!makecitealt%]]}
+       # ...; NextAuthor et al., Year...
+       !nextcitealp {%next%[[%!sep% %!makecitealp%]]}
+
+       ## The actual cite styles (additions and modifications to default) ##
+       # Author (cf. Year); NextAuthor (Year, p. xx)
+       citet %!makecitet%%!textafter%%!close%
+       # (cf. Author et al., Year; NextAuthor et al., Year, p. xx)
+       citep %!open%%!textbefore%%!makecitealp%%!textafter%%!close%
+       # cf. Author et al., Year; NextAuthor et al., Year, p. xx
+       citealp %!textbefore%%!makecitealp%%!textafter%
+       # Author cf. Year; NextAuthor Year, p. xx [sic!]
+       citealt %!makecitealt%%!textafter%
+       # Author; NextAuthor, p. xx
        citeauthor %!startlink%%!abbrvauthor%%!endlink%%!nextauthor%%!textafter%
+       # Year; NextYear, p. xx
        citeyear %!startlink%%!year%%!endlink%%!nextyear%%!textafter%
+
+       # Fallback style: Author (cf. Year); NextAuthor (Year, p. xx)
+       cite %!makecitet%%!textafter%%!close%
 End
 
 CiteFormat numerical
+       # Macros
        !open [
        !sep ,
        !close ]
 
-       !citet %!abbrvauthor% 
%!open%%!textbefore%{%dialog%[[#ID]][[%!startlink%{%numericallabel%[[%numericallabel%]][[#%key%]]}%!endlink%]]}%!nextcitet%
-       !citealt %!abbrvauthor% 
%!textbefore%{%dialog%[[#ID]][[%!startlink%{%numericallabel%[[%numericallabel%]][[#%key%]]}%!endlink%]]}%!nextcitealt%
-
+       # Author [cf. ID...
+       !makecitet %!abbrvauthor% 
%!open%%!textbefore%{%dialog%[[#ID]][[%!startlink%{%numericallabel%[[%numericallabel%]][[#%key%]]}%!endlink%]]}%!nextcitet%
+       # Author cf. ID...
+       !makecitealt %!abbrvauthor% 
%!textbefore%{%dialog%[[#ID]][[%!startlink%{%numericallabel%[[%numericallabel%]][[#%key%]]}%!endlink%]]}%!nextcitealt%
+       # ID...
        !hashkey 
{%dialog%[[#ID]][[%!startlink%{%numericallabel%[[%numericallabel%]][[#%key%]]}%!endlink%%!nexthashkey%]]}
 
-       !nextcitet {%next%[[%!close%%!sep% %!citet%]]}
-       !nextcitealt {%next%[[%!sep% %!citealt%]]}
+       # ...], NextAuthor [ID...
+       !nextcitet {%next%[[%!close%%!sep% %!abbrvauthor% 
%!open%%!textbefore%{%dialog%[[#ID]][[%!startlink%{%numericallabel%[[%numericallabel%]][[#%key%]]}%!endlink%]]}%!nextcitet%]]}
+       # ..., NextAuthor ID...
+       !nextcitealt {%next%[[%!sep% %!abbrvauthor% 
{%dialog%[[#ID]][[%!startlink%{%numericallabel%[[%numericallabel%]][[#%key%]]}%!endlink%]]}%!nextcitealt%]]}
+       # FIXME: What is this?
        !nexthashid {%next%[[%!sep% #ID%!nexthashid%]]}
+       # ..., NextID...
        !nexthashkey {%next%[[%!sep% 
%!startlink%{%numericallabel%[[%numericallabel%]][[#%key%]]}%!endlink%%!nexthashkey%]]}
 
-       cite %!open%%!textbefore%%!hashkey%%!textafter%%!close%
+       ## The actual cite styles (additions and modifications to default) ##
+       # [cf. ID, NextID, p. xx]
        citep %!open%%!textbefore%%!hashkey%%!textafter%%!close%
+       # Author [cf. ID], Nextauthor [NextID, p. xx]
+       citet %!makecitet%%!textafter%%!close%
+       # cf. ID, NextID, p. xx
        citealp %!textbefore%%!hashkey%%!textafter%
+       # Author cf. ID, NextAuthor ID, p. xx
+       citealt %!makecitealt%%!textafter%
+       # Author, NextAuthor
        citeauthor %!startlink%%!abbrvauthor%%!endlink%%!nextauthor%
+       # Year, NextYear
        citeyear %!startlink%%!year%%!endlink%%!nextyear%
+
+       # Fallback style: [cf. ID, NextID, p. xx]
+       cite %!open%%!textbefore%%!hashkey%%!textafter%%!close%
 End

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