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-rw-r--r--lib/xmerl/doc/examples/Makefile61
-rw-r--r--lib/xmerl/doc/examples/mkdocs.erl9
-rw-r--r--lib/xmerl/doc/examples/sdocbook2xhtml.erl823
-rwxr-xr-xlib/xmerl/doc/examples/test_html.erl225
-rw-r--r--lib/xmerl/doc/examples/xmerl_test.erl522
-rwxr-xr-xlib/xmerl/doc/examples/xml/test.xml6
-rwxr-xr-xlib/xmerl/doc/examples/xml/test2.xml8
-rwxr-xr-xlib/xmerl/doc/examples/xml/test3.xml8
-rwxr-xr-xlib/xmerl/doc/examples/xml/test4.xml9
-rwxr-xr-xlib/xmerl/doc/examples/xml/test5.xml9
-rwxr-xr-xlib/xmerl/doc/examples/xml/testdtd.dtd17
-rwxr-xr-xlib/xmerl/doc/examples/xml/xmerl.xml523
-rw-r--r--lib/xmerl/doc/examples/xml/xmerl_xs.xml541
-rw-r--r--lib/xmerl/doc/examples/xserl_test.erl85
14 files changed, 2846 insertions, 0 deletions
diff --git a/lib/xmerl/doc/examples/Makefile b/lib/xmerl/doc/examples/Makefile
new file mode 100644
index 0000000000..2768ee1985
--- /dev/null
+++ b/lib/xmerl/doc/examples/Makefile
@@ -0,0 +1,61 @@
+ERLC = erlc
+EMULATOR = beam
+EBIN = .
+HTML = .
+XML = ./xml
+RM = rm -f
+
+# ----------------------------------------------------
+# Common Macros
+# ----------------------------------------------------
+include ../../vsn.mk
+VSN = $(XMERL_VSN)
+
+
+MODULES = \
+ xmerl_test \
+ test_html \
+ xserl_test \
+ mkdocs \
+ sdocbook2xhtml
+
+
+
+DOC_FILES = $(DOCS:%=$(HTML)/%.html)
+
+ERL_COMPILE_FLAGS += $(DEBUG) -I ../../include +warn_unused_wars +debug_info
+
+SUB_DIRECTORIES =
+
+#all: $(MODULES:%=$(EBIN)/%.$(EMULATOR)) xsm $(DOC_FILES)
+all opt: $(MODULES:%=$(EBIN)/%.$(EMULATOR)) $(DOC_FILES)
+
+info:
+ @echo "DOC_FILES: $(DOC_FILES)"
+
+clean:
+# @for d in $(SUB_DIRECTORIES); do \
+# cd $$d; $(MAKE) clean; \
+# done
+ $(RM) $(HTML)/*.html
+ $(RM) $(EBIN)/*.beam
+ $(RM) core *~
+
+debug: xsmdebug $(DOC_FILES)
+
+xsm:
+ @for d in $(SUB_DIRECTORIES); do \
+ cd $$d; $(MAKE); \
+ done
+
+xsmdebug:
+ @for d in $(SUB_DIRECTORIES); do \
+ cd $$d; $(MAKE) DEBUG=-Ddebug=1; \
+ done
+
+$(HTML)/%.html: $(XML)/%.xml
+ erl -noshell -pa ../../ebin -run mkdocs run $< $@ -s erlang halt
+
+$(EBIN)/%.beam: %.erl
+ $(ERLC) $(ERL_COMPILE_FLAGS) -o $(EBIN) $<
+
diff --git a/lib/xmerl/doc/examples/mkdocs.erl b/lib/xmerl/doc/examples/mkdocs.erl
new file mode 100644
index 0000000000..9faa12685b
--- /dev/null
+++ b/lib/xmerl/doc/examples/mkdocs.erl
@@ -0,0 +1,9 @@
+-module(mkdocs).
+-author('[email protected]').
+
+-export([run/1]).
+
+run([InFile, OutFile])->
+ {A,_}=xmerl_scan:file(InFile,[{fetch_fun, fun(DTDSpec,S) -> {ok,S} end}]),
+ B = sdocbook2xhtml:process_xml(A),
+ file:write_file(OutFile,[B]).
diff --git a/lib/xmerl/doc/examples/sdocbook2xhtml.erl b/lib/xmerl/doc/examples/sdocbook2xhtml.erl
new file mode 100644
index 0000000000..f96bf51963
--- /dev/null
+++ b/lib/xmerl/doc/examples/sdocbook2xhtml.erl
@@ -0,0 +1,823 @@
+%%%----------------------------------------------------------------------
+%%% File : sdocbook2xhtml.erl
+%%% Description : Erlang XSLT like "stylesheet" for exporting
+%%% Simplified Docbook XML to XHTML.
+%%%
+%%% Modules used : lists, io_lib, xmerl, xmerl_lib, xmerl_xs
+%%%
+%%%----------------------------------------------------------------------
+
+-module(sdocbook2xhtml).
+-author('[email protected]').
+
+
+-include("xmerl.hrl").
+-import(xmerl_lib, [markup/3,mapxml/2, foldxml/3, mapfoldxml/3]).
+-import(xmerl_xs, [ xslapply/2, value_of/1, select/2, built_in_rules/2]).
+
+-export([ process_xml/1 ]).
+
+-export([abbrev/4,
+ abstract/4,
+ acronym/4,
+ address/4,
+ anchor/4,
+ appendix/4,
+ appendixinfo/4,
+ article/4,
+ articleinfo/4,
+ audiodata/4,
+ audioobject/4,
+ author/4,
+ authorgroup/4,
+ authorinitials/4,
+ bibliography/4,
+ bibliomixed/4,
+ bibliomisc/4,
+ bibliomset/4,
+ biblioset/4,
+ blockquote/4,
+ caption/4,
+ citetitle/4,
+ city/4,
+ colspec/4,
+ command/4,
+ computeroutput/4,
+ copyright/4,
+ corpauthor/4,
+ country/4,
+ date/4,
+ edition/4,
+ editor/4,
+ email/4,
+ emphasis/4,
+ entry/4,
+ example/4,
+ fax/4,
+ figure/4,
+ filename/4,
+ firstname/4,
+ footnote/4,
+ holder/4,
+ honorific/4,
+ imagedata/4,
+ imageobject/4,
+ informaltable/4,
+ inlinemediaobject/4,
+ isbn/4,
+ issn/4,
+ issuenum/4,
+ legalnotice/4,
+ lineage/4,
+ link/4,
+ literal/4,
+ itemizedlist/4,
+ listitem/4,
+ mediaobject/4,
+ member/4,
+ note/4,
+ orderedlist/4,
+ othercredit/4,
+ othername/4,
+ para/4,
+ phone/4,
+ phrase/4,
+ programlisting/4,
+ publishername/4,
+ quote/4,
+ replaceable/4,
+ revhistory/4,
+ revision/4,
+ revnumber/4,
+ revremark/4,
+ row/4,
+ section/4,
+ sectioninfo/4,
+ simplelist/4,
+ subtitle/4,
+ surname/4,
+ systemitem/4,
+ table/4,
+ tbody/4,
+ term/4,
+ tfoot/4,
+ tgroup/4,
+ thead/4,
+ title/4,
+ titleabbrev/4,
+ trademark/4,
+ ulink/4,
+ userinput/4,
+ variablelist/4,
+ varlistentry/4,
+ xref/4,
+ year/4
+ ]).
+
+
+xmlhead() -> "<\?xml version=\"1.0\" encoding=\"iso-8859-1\"\?>".
+doctype() ->"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\
+ \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd \">\n".
+
+style() ->
+ "<style type=\"text/css\"> body {margin-left:10%; margin-right:5%;} \
+.logo{float:right;}
+.toc UL {
+ list-style-type: none;
+ border: solid;
+ border-width: thin;
+ padding-left: 10px;
+ padding-right: 10px;
+ padding-top: 5px;
+ padding-bottom: 5px;
+ background: #f0f0f0;
+ letter-spacing: 2px;
+ line-height: 20px;
+}
+</style>".
+
+process_xml(E)->
+%% lists:flatten(template( E )).
+ template( E ).
+
+%% article is the root element
+template(E0 = #xmlElement{name=article})->
+
+ E = changetitle(E0), %% Add section numbering to titles
+
+ [ xmlhead(), doctype(),
+ "<html xmlns=\"http://www.w3.org/1999/xhtml\" >"
+ "<head>"
+ "<title>",
+ value_of(select("articleinfo/title",E)),
+ "</title>",
+ style(),
+ "</head>"
+ "<body>",
+%% "<img src=\"/logo.png\" alt=\"no logo\" class=\"logo\" </img>",
+ xslapply( fun template/1, select("articleinfo",E)),
+ process_toc(E), %% Insert toc between info and main part of article
+ xslapply( fun template/1, select("section",E)),
+ xslapply( fun template/1, select("appendix",E)),
+ "</body></html>"];
+
+template(E = #xmlElement{name=Name})->
+ A = xslapply( fun template/1, E),
+ case catch
+ sdocbook2xhtml:Name(A, E#xmlElement.attributes, E#xmlElement.parents,E)
+ of
+ {'EXIT', {undef, _}} ->
+ A;
+ {'EXIT', Reason} ->
+ exit(Reason);
+ Res ->
+ Res
+ end;
+
+template(E) ->
+ built_in_rules( fun template/1, E).
+
+%% -------------------------------------------------------------------
+%% simple serialize tags
+
+abbrev(Data, Attrs, [{bibliomset,_}|_], E)->
+ ["<dt><abbr>", Data, "</abbr></dt><dd>"];
+abbrev(Data, Attrs, Parents, E)->
+ markup("abbr",Attrs, Data).
+
+
+abstract(Data, Attrs, Parents, E)->
+ ["<h3>Abstract</h3><blockquote>", Data, "</blockquote>"].
+
+acronym(Data, Attrs, Parents, E)->
+ markup("acronym",Attrs, Data).
+
+address(Data, Attrs, Parents, E)->
+ markup("address", Attrs, Data).
+
+anchor(Data, Attrs, Parents, E)->
+ case find_attribute(id, Attrs) of
+ {value,ID} ->
+ ["<a name=\"" ++ ID ++ "\">", Data, "</a>"];
+ false ->
+ Data
+ end.
+
+appendix(Data, Attrs, Parents, E)->
+ ["<h1>Appendix</h1>", Data].
+
+appendixinfo(Data,_,_,_)->
+ Data.
+
+article(Data, Attrs, Parents, E)->
+ ["<body>"
+ "<img src=\"/logga2.jpg\" alt=\"no logo\" class=\"logo\"
+width=\"50\"</img>",
+ Data,
+ "</body>"].
+
+articleinfo(Data,_,_,_)->
+ Data.
+
+audiodata(Data, Attrs, Parents, E)->Data.
+
+audioobject(_,_,_,_)->
+ [].
+
+author(Data, Attrs, [{authorgroup,_} | _], E)->
+ markup("dd", Attrs, Data);
+author(Data, Attrs, Parents, E)->
+ Data.
+
+authorgroup(Data,_,_,_)->
+ ["<dl><dt>Author</dt>",Data,"</dl>"].
+
+authorinitials(Data,_,_,_)-> Data.
+
+bibliography(Data, Attrs, Parents, E)->
+ ["<h3>Bibliography</h3>" ,Data].
+
+bibliomisc(Data,_,_,_)-> Data.
+bibliomixed(Data,_,_,_)-> ["<dl>",Data, "</dl>"].
+bibliomset(Data,_,_,_)-> [Data, "</dd>"].
+
+biblioset(Data,_,_,_)-> Data.
+
+blockquote(Data, Attrs, Parents, E)->
+ markup("blockquote",Attrs, Data).
+
+caption(Data, Attrs, Parents, E)-> Data.
+
+citetitle(Data,_,_,_)-> ["<i>",Data,"</i>"].
+
+city(Data,_,_,_)->
+ Data.
+
+%% Fix Me is it "col" element in html?
+colspec(_, Attrs,_,_)->
+ [].
+
+command(Data,_,_,_)->
+ ["<b><tt>", Data, "</tt></b>"].
+
+computeroutput(Data,_,_,_)->
+ ["<tt>", Data, "</tt>"].
+
+copyright(Data,_,_,_)->
+ [ "&copy; ", Data].
+
+corpauthor(Data,_,_,_)->
+ Data.
+
+country(Data,_,_,_)->
+ Data.
+
+date(Data,_,[{revision,_}|_],_)->
+ ["<td>", Data, "</td>"];
+date(Data,_,_,_)->
+ Data.
+
+edition(Data,_,_,_)->
+ Data.
+
+editor(Data,_,_,_)->
+ Data.
+
+email(Data,_,_,_)->
+ ["<i><a href=\"mailto:", Data,"\">",Data,"</a></i>"].
+
+emphasis(Data, Attrs, Parents, E)->
+ ["<em>", Data, "</em>"].
+
+%% Cell in a table
+entry(Data, Attrs, [{row,_}, {thead,_} | _], E)->
+ ["<th>", Data, "</th>"];
+entry(Data, Attrs, Parents, E)->
+ ["<td>", Data, "</td>"].
+
+example(Data, Attrs, Parents, E)->
+ ["<hr />", Data, "<hr />"].
+
+fax(Data, Attrs, Parents, E)->
+ ["<address>", Data, "</address>"].
+
+%% May contain ulink to image, resolved by ulink type
+figure(Data, _, _, _)->
+ Data.
+
+filename(Data, _, _, _)->
+ ["<i>", Data, "</i>"].
+
+firstname(Data, _, _, _)->
+ [Data , " " ].
+
+footnote(Data, _, _, _)->
+ Data.
+
+holder(Data, _, _, _)->
+ [" ",Data].
+
+honorific(Data, _, _, _)->
+ Data.
+
+imagedata(Data, Attrs, Parents, E)->
+ SRC =
+ case find_attribute(fileref, Attrs) of
+ {value,AS} ->
+ " src=" ++ AS ++ " ";
+ false ->
+ []
+ end,
+ ALT =
+ case SRC of
+ [] ->
+ " alt=\"No image!\" ";
+ _ ->" alt=\"" ++ SRC ++ "\" "
+ end,
+ WIDTH =
+ case find_attribute(width, Attrs) of
+ false ->
+ [];
+ {value,A} ->" width=" ++ A ++ " "
+ end,
+
+ ["<img " ++ SRC ++ ALT ++ WIDTH ++ "></img>"].
+
+
+imageobject(Data, Attrs, Parents, E)->
+ Data.
+
+informaltable(Data, Attrs, Parents, E)->
+ ["<table border=\"1\" >", Data, "</table>"].
+
+
+inlinemediaobject(Data, Attrs, Parents, E)->
+ Data.
+
+isbn(Data, Attrs, Parents, E)->
+ Data.
+
+issn(Data, Attrs, Parents, E)->
+ Data.
+
+issuenum(Data, Attrs, Parents, E)->
+ Data.
+
+itemizedlist(Data, Attrs, Parents, _)->
+ markup("ul", Attrs, Data).
+
+%keyword
+%{
+% display: inline;
+%}
+
+%keywordset
+%{
+% display: inline;
+%}
+
+legalnotice(Data, Attrs, Parents, _)->
+ markup("small", Attrs, Data).
+
+lineage(Data, Attrs, Parents, _)->
+ Data.
+
+%lineannotation
+%{
+% display: inline;
+%}
+
+% Hypertext link
+link(Data, Attrs, Parents, _)->
+ case find_attribute(linkend, Attrs) of
+ {value,LINK} ->
+ ["<a href=\"#" ++ LINK ++ "\">", Data, "</a>"];
+ false ->
+ Data
+ end.
+
+listitem(Data, Attrs, [{varlistentry,_} | _], E) ->
+ markup("dd", Attrs, Data);
+listitem(Data, Attrs, Parents, _)->
+ markup("li", Attrs, Data).
+
+literal(Data, Attrs, Parents, _)->
+ markup("tt", Attrs, Data).
+
+%literallayout
+%{
+% display: inline;
+%}
+
+mediaobject(Data, Attrs, Parents, _)->
+ Data.
+
+%% simplelist member
+member(Data, Attrs, Parents, _)->
+ [Data,"<br></br>"].
+
+note(Data, Attrs, Parents, _)->
+["<table border=\"1\" cellspacing=\"0\" cellpadding=\"5\" width=\"80%\"
+bgcolor=\"#CCCCCC\"><tr><td>NOTE</td><td><i>", Data, "</i></td></tr></table>"].
+
+%objectinfo
+%{
+% display: inline;
+%}
+
+%option
+%{
+% display: inline;
+%}
+
+orderedlist(Data, Attrs, Parents, _)->
+ markup("ol",Attrs,Data).
+
+%% Hmm otheraddr not in DTD
+%otheraddr
+%{
+% display: inline;
+%}
+
+othercredit(Data, Attrs, Parents, _)->Data.
+
+othername(Data, Attrs, Parents, E)->Data.
+
+%% IGNORE
+%pagenums
+%{
+% display: inline;
+%}
+
+para(Data, Attrs, [{listitem,_}|_], E)->
+ Data;
+para(Data, Attrs, [{note,_}|_], E)->
+ Data;
+para(Data, Attrs, Parents, E)->
+ markup("p", Attrs, Data).
+
+phone(Data, Attrs, Parents, E)->Data.
+
+phrase(Data, Attrs, Parents, E)->Data.
+
+%pob
+%{
+% display: inline;
+%}
+
+%postcode
+%{
+% display: inline;
+%}
+
+%printhistory
+%{
+% display: inline;
+%}
+
+%procedure
+%{
+% display: inline;
+%}
+
+programlisting(Data, Attrs, Parents, E)->
+["<table border=\"1\" cellspacing=\"0\" cellpadding=\"5\" width=\"100%\"
+bgcolor=\"#CCCCCC\"><tr><td><pre><code>", Data,
+"</code></pre></td></tr></table>"].
+
+%pubdate
+%{
+% display: inline;
+%}
+
+%publisher
+%{
+% display: inline;
+%}
+
+publishername(Data, Attrs, Parents, E)->
+ Data.
+
+quote(Data, Attrs, Parents, _)->
+ markup("q", Attrs, Data).
+
+replaceable(Data, Attrs, Parents,_)->
+ markup("i", Attrs, Data).
+
+revhistory(Data, Attrs, Parents,E)->
+ {A,B,C} = case E#xmlElement.language of
+ "en" -> {"Revision history","Date","Comment"};
+ "sv" -> {"Revisionshistoria","Datum","Kommentar"};
+ _ ->{"lang is undefined","lang is undefined","lang is undefined"}
+ end,
+
+ ["<h4>",A,"</h4>","<table><thead>"
+ "<tr><th>Rev.</th><th>",B,"</th><th>",C,"</th></tr></thead>", Data,
+ "</table>"].
+
+revision(Data, Attrs, Parents,_)->
+ markup("tr", Attrs, Data).
+
+revnumber(Data, Attrs, Parents,_)->
+ markup("td", Attrs, Data).
+
+revremark(Data, Attrs, Parents,_)->
+ markup("td", Attrs, Data).
+
+row(Data, Attrs, Parents, E)->
+ markup("tr", Attrs, Data).
+
+section(Data, Attrs, Parents, E)->
+ Data.
+
+sectioninfo(Data, Attrs, Parents, E)->Data.
+
+%sidebar
+%{
+% display: block;
+%}
+
+simplelist(Data, Attrs, Parents, E)->
+ ["<table border=\"1\" cellspacing=\"0\" cellpadding=\"5\"
+width=\"100%\"><tr><td>", Data, "</td></tr></table>"].
+
+
+%state
+%{
+% display: inline;
+%}
+
+%step
+%{
+% display: inline;
+%}
+
+%street
+%{
+% display: inline;
+%}
+
+%substeps
+%{
+% display: inline;
+%}
+
+subtitle(Data, Attrs, Parents, E)->
+ ["<h3>", Data, "</h3>"].
+
+surname(Data, Attrs, Parents, E)->Data.
+
+systemitem(Data, Attrs, Parents, E)->
+ markup("b", Attrs, Data).
+
+table(Data, Attrs, Parents, E)->
+ ["<table border=\"1\" cellspacing=\"0\" cellpadding=\"4\" >",
+ Data, "</table>"].
+
+%% Fix me alot
+tbody(Data, Attrs, Parents, E)->
+ markup("tbody", Attrs, Data).
+%{
+% display: table-row-group;
+%}
+
+term(Data, Attrs, [{varlistentry,_} | _], E) ->
+ markup("dt", Attrs, Data).
+
+
+%textobject
+%{
+% display: inline;
+%}
+
+tfoot(Data, Attrs, Parents, E)->
+ markup("tfoot",Attrs, Data).
+
+%% Fixme alot
+tgroup(Data, Attrs, Parents, E)->
+ markup("colgroup", Attrs, Data).
+%{
+% display: table;
+%}
+
+thead(Data, Attrs, Parents, E)->
+ markup("thead",Attrs, Data).
+%{
+% display: table-row-group;
+%}
+
+title(Data, Attrs, Parents, E)->
+%% io:fwrite("Parents ~p~n", [Parents]),
+ title1(Data, Attrs, Parents, E).
+
+title1(Data, Attrs, [{section,_}, {section,_}, {section,_},
+ {section,_}, {section,_}, {appendix,_} | _], E) ->
+ ["<h6>", Data, "</h6>"];
+title1(Data, Attrs, [{section,_}, {section,_}, {section,_},
+ {section,_}, {appendix,_} | _], E) ->
+ ["<h5>", Data, "</h5>"];
+title1(Data, Attrs, [{section,_}, {section,_}, {section,_},
+ {apendix,_} | _], E) ->
+ ["<h4>", Data, "</h4>"];
+title1(Data, Attrs, [{section,_}, {section,_}, {appendix,_} | _], E) ->
+ ["<h3>", Data, "</h3>"];
+title1(Data, Attrs, [{section,_}, {appendix,_} | _], E) ->
+ ["<h2>", Data, "</h2>"];
+title1(Data, Attrs, [{appendix,_} | _], E) ->
+ ["<h1>", Data, "</h1>"];
+
+title1(Data, Attrs, [{section,_}, {section,_}, {section,_},
+ {section,_}, {section,_}, {section,_} | _], E) ->
+ ["<h6>", Data, "</h6>"];
+title1(Data, Attrs, [{section,_}, {section,_}, {section,_},
+ {section,_}, {section,_} | _], E) ->
+ ["<h6>", Data, "</h6>"];
+title1(Data, Attrs, [{section,_}, {section,_}, {section,_},
+ {section,_} | _], E) ->
+ ["<h5>", Data, "</h5>"];
+title1(Data, Attrs, [{section,C}, {section,B}, {section,A} | _], E) ->
+ {value, Id} = find_attribute(id,Attrs),
+ ["<h4 id=\"", Id, "\">", Data, "</h4>"];
+title1(Data, Attrs, [{section,B}, {section,A} | _], E) ->
+ {value, Id} = find_attribute(id,Attrs),
+ ["<h3 id=\"", Id, "\">", Data, "</h3>"];
+title1(Data, Attrs, [{section,A} | _], E) ->
+ {value, Id} = find_attribute(id,Attrs),
+ ["<h2 id=\"", Id, "\">", Data, "</h2>"];
+title1(Data, Attrs, [{articleinfo,_} | _], E) ->
+ ["<h1>", Data, "</h1>"];
+title1(Data, Attrs, [{table,_} | _], E) ->
+ ["<caption>", Data, "</caption>"];
+title1(Data, Attrs, [{bibliomset,_} | _], E) ->
+ ["<i><b>", Data, "</b></i>"];
+title1(Data, Attrs, Parents, E)->
+ ["<h4>", Data, "</h4>"].
+
+titleabbrev(Data, Attrs, Parents, E)->[].
+
+trademark(Data, Attrs, Parents, E)->
+ [ Data, " &reg; "].
+
+ulink(Data, Attrs, Parents, E)->
+ case find_attribute(url, Attrs) of
+ {value,LINK} ->
+ ["<a href="++ LINK ++ ">", Data, "</a>"];
+ false ->
+ Data
+ end.
+
+
+%% User input is Constant Bold
+userinput(Data, Attrs, Parents, E)->
+ ["<tt><b>", Data, "</b></tt>"].
+
+variablelist(Data, Attrs, Parents, E)->
+ markup("dl", Attrs, Data).
+
+varlistentry(Data, Attrs, Parents, E)->Data.
+
+%videodata
+%{
+% display: inline;
+%}
+
+%videoobject
+%{
+% display: inline;
+%}
+
+%volumenum
+%{
+% display: inline;
+%}
+
+xref(Data, Attrs, Parents, E)->
+ case find_attribute(linkend, Attrs) of
+ {value,LINK} ->
+ ["<a href=\"#" ++ LINK ++ "\" />"];
+ false ->
+ Data
+ end.
+
+year(Data, Attrs, Parents, E)->Data.
+
+%% ----------------------------------------------------------
+%% Utils find_attribute copied from Ulf Wigers xmerl distribution
+
+find_attribute(Name, Attrs) ->
+ case lists:keysearch(Name, #xmlAttribute.name, Attrs) of
+ {value, #xmlAttribute{value = V}} ->
+ {value, V};
+ false ->
+ false
+ end.
+%% ------------
+
+changetitle(A) ->
+ Afun = fun changecount/2,
+ {E, Acc} = mapfoldxml(Afun, {0,0,0,0,0,0}, A),
+ E.
+
+changecount(#xmlElement{name=title}=E, {A,B,C,Ex,Fig,Tab})->
+ case E#xmlElement.parents of
+ [{example,_} |_] ->
+ {addexhead(E,{A,Ex+1}), {A,B,C,Ex+1,Fig,Tab} };
+ [{figure,_} |_] ->
+ {addfighead(E,{A,Fig+1}), {A,B,C,Ex,Fig+1,Tab} };
+ [{table,_} |_] ->
+ {addtablehead(E,{A,Tab+1}), {A,B,C,Ex,Fig,Tab+1} };
+ [{section,_},{section,_},{section,_},{article,_} |_] ->
+ {addheader(E,{A,B,C+1}), {A,B,C+1,Ex,Fig,Tab} };
+ [{section,_},{section,_},{article,_} |_] ->
+ { addheader(E,{A,B+1,0}), {A,B+1,0,Ex,Fig,Tab} };
+ [{section,_},{article,_} |_] ->
+ {addheader(E,{A+1,0,0}),{A+1,0,0,0,0,0}};
+ _ ->
+ {E,{A,B,C,Ex,Fig,Tab}}
+ end;
+changecount(E, Acc)->{E,Acc}.
+
+addexhead(#xmlElement{name=title,content=[#xmlText{}=T1|_]}= E, {Ch,No})->
+ NewHeader = "Example " ++
+ integer_to_list(Ch)++" - "++ integer_to_list(No) ++
+ " " ++ T1#xmlText.value,
+ E#xmlElement{content=[T1#xmlText{value=NewHeader}]}.
+addfighead(#xmlElement{name=title,content=[#xmlText{}=T1|_]}= E, {Ch,No})->
+ NewHeader = "Figure " ++
+ integer_to_list(Ch)++" - "++ integer_to_list(No) ++
+ " " ++ T1#xmlText.value,
+ E#xmlElement{content=[T1#xmlText{value=NewHeader}]}.
+addtablehead(#xmlElement{name=title,content=[#xmlText{}=T1|_]}= E, {Ch,No})->
+ NewHeader = "Table " ++
+ integer_to_list(Ch)++" - "++ integer_to_list(No) ++
+ " " ++ T1#xmlText.value,
+ E#xmlElement{content=[T1#xmlText{value=NewHeader}]}.
+
+addheader(#xmlElement{name=title,content=[#xmlText{}=T1|_]}= E, Chapters)->
+ NewHeader = chapterstring(Chapters)++ " " ++ T1#xmlText.value,
+ NewAtts = addid(E#xmlElement.attributes, Chapters),
+ E#xmlElement{content=[T1#xmlText{value=NewHeader}],
+ attributes = NewAtts}.
+
+chapterstring({A,0,0})->integer_to_list(A);
+chapterstring({A,B,0})->integer_to_list(A)++"."++ integer_to_list(B);
+chapterstring({A,B,C})->integer_to_list(A) ++ "." ++
+ integer_to_list(B) ++ "." ++
+ integer_to_list(C).
+
+%% addid add id attribute if it not already exists
+addid(OldAtts, Chapters)->
+ case find_attribute(id, OldAtts) of
+ {value,_} ->
+ OldAtts;
+ false ->
+ add_attribute(id,"sect_"++ chapterstring(Chapters),
+ OldAtts)
+ end.
+
+add_attribute(Name, Value, OldAtts)->
+ [#xmlAttribute{ name=Name, value = Value}| OldAtts ].
+
+
+process_toc(E)->
+ AFun = fun chapindex/2,
+ TOCR = foldxml(AFun, [], E),
+% Str = case find_attribute(lang, E#xmlElement.attributes) of
+% {value,"en"} -> "Table of Contents";
+% {value,"sv"} -> "Inneh�llsf�rtecking";
+% _ ->"lang is undefined"
+% end,
+ Str = case E#xmlElement.language of
+ "en" -> "Table of Contents";
+ "sv" -> "Inneh�llsf�rtecking";
+ _ ->"lang is undefined"
+ end,
+ TOC = ["<div class=\"toc\"><h3>",Str,"</h3><ul>",
+lists:reverse(TOCR), "</ul></div>"].
+
+chapindex(#xmlElement{name=title}=E, Accu)->
+ case E#xmlElement.parents of
+ [{section,_},{section,_},{section,_},{article,_} |_] ->
+ ["<li>"++spind(3)++ addlink(E,"toc_level_3") ++"</li>"| Accu];
+ [{section,_},{section,_},{article,_} |_] ->
+ ["<li>"++spind(2)++ addlink(E,"toc_level_2") ++ "</li>"| Accu];
+ [{section,_},{article,_} |_] ->
+ ["<li>"++spind(1)++ addlink(E,"toc_level_1") ++"</li>"| Accu];
+ _ ->
+ Accu
+ end;
+chapindex(E, Accu) ->
+ Accu.
+
+spind(0) ->"";
+spind(X)->
+ "&#160;&#160;" ++ spind(X-1).
+
+addlink(E, TocLevel)->
+ {value,LINK} = find_attribute(id,E#xmlElement.attributes),
+ [#xmlText{value=Title}|_] = E#xmlElement.content, %% Pfuii
+ "<a href=\"#" ++ LINK ++
+ "\" class=\"" ++ TocLevel ++ "\">" ++
+ Title ++ "</a>".
+
+
diff --git a/lib/xmerl/doc/examples/test_html.erl b/lib/xmerl/doc/examples/test_html.erl
new file mode 100755
index 0000000000..3ca15f30f8
--- /dev/null
+++ b/lib/xmerl/doc/examples/test_html.erl
@@ -0,0 +1,225 @@
+%%% The contents of this file are subject to the Erlang Public License,
+%%% Version 1.0, (the "License"); you may not use this file except in
+%%% compliance with the License. You may obtain a copy of the License at
+%%% http://www.erlang.org/license/EPL1_0.txt
+%%%
+%%% Software distributed under the License is distributed on an "AS IS"
+%%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%%% the License for the specific language governing rights and limitations
+%%% under the License.
+%%%
+%%% The Original Code is xmerl-0.7
+%%%
+%%% The Initial Developer of the Original Code is Ericsson Telecom
+%%% AB. Portions created by Ericsson are Copyright (C), 1998, Ericsson
+%%% Telecom AB. All Rights Reserved.
+%%%
+%%% Contributor(s): ______________________________________.
+%%%
+%%%----------------------------------------------------------------------
+%%% #0. BASIC INFORMATION
+%%%----------------------------------------------------------------------
+%%% File: test_html.erl
+%%% Author : Ulf Wiger <[email protected]>
+
+%%% Description : Callback module for exporting XML to HTML with support
+%%% for special Erlang-related tags. (Experimental)
+%%%
+%%% Modules used : lists, io_lib
+%%%
+%%%----------------------------------------------------------------------
+
+-module(test_html).
+-author('[email protected]').
+
+
+-export(['#xml-inheritance#'/0]).
+
+%%% special Erlang forms
+-export(['EXIT'/4,
+ 'tuple_list'/4]).
+
+-export(['#root#'/4,
+ title/4,
+ heading/4,
+ section/4,
+ table/4,
+ row/4,
+ col/4,
+ data/4,
+ p/4, para/4, 'P'/4,
+ emphasis/4]).
+
+-include("xmerl.hrl").
+
+
+'#xml-inheritance#'() -> [xmerl_xml].
+
+
+
+%% The '#root#' tag is called when the entire structure has been exported.
+%% It does not appear in the structure itself.
+'#root#'(Data, Attrs, [], E) ->
+ Title =
+ case find_attribute(title, Attrs) of
+ {value, T} ->
+ ["<title>", T, "</title>"];
+ false ->
+ []
+ end,
+ ["<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML//EN\">\n"
+ "<html>\n",
+ "<head>\n", Title, "</head>\n"
+ "<body>\n", Data, "</body>\n"].
+
+
+
+
+%%% Special token: EXIT
+'EXIT'(Reason, Attrs = [], Parents = [], E) ->
+ %% This happens e.g. if a request function crashes completely.
+ ["<pre>\n", mk_string({'EXIT', Reason}), "</pre>"].
+
+
+title(Str, Attrs, Parents, E) ->
+ ["<h1>", Str, "</h1>\n"].
+
+
+%%% section/3 is to be used instead of headings.
+section(Data, Attrs, [{section,_}, {section,_}, {section,_} | _], E) ->
+ opt_heading(Attrs, "<h4>", "</h4>", Data);
+section(Data, Attrs, [{section,_}, {section,_} | _], E) ->
+ opt_heading(Attrs, "<h3>", "</h3>", Data);
+section(Data, Attrs, [{section,_} | _], E) ->
+ opt_heading(Attrs, "<h2>", "</h2>", Data);
+section(Data, Attrs, Parents, E) ->
+ opt_heading(Attrs, "<h1>", "</h1>", Data).
+
+opt_heading(Attrs, StartTag, EndTag, Data) ->
+ case find_attribute(heading, Attrs) of
+ {value, Text} ->
+ [StartTag, Text, EndTag, "\n" | Data];
+ false ->
+ Data
+ end.
+
+
+%% tables
+%% e.g. {table, [{heading, [{col, H1}, {col, H2}]},
+%% {row, [{col, C11}, {col, C12}]},
+%% {row, [{col, C21}, {col, C22}]}]}.
+
+table(Data, Attrs, Parents, E) ->
+ Border = case find_attribute(border, Attrs) of
+ false ->
+ " border=1";
+ {value, N} ->
+ [" border=", mk_string(N)]
+ end,
+ ["<table", Border, ">\n", Data, "\n</table>\n"].
+
+row(Data, Attrs, [{table,_}|_], E) ->
+ ["<tr>", Data, "</tr>\n"].
+
+heading(Data, Attrs, [{table,_}|_], E) ->
+ ["<tr>", Data, "</tr>\n"].
+
+
+%% Context-sensitive columns (heading- or row columns)
+col(Data, Attrs, [{heading,_}, {table,_} | _], E) ->
+ ["<th>", nbsp_if_empty(Data), "</th>\n"];
+col(Data, Attrs, [{row,_}, {table,_} | _], E) ->
+ ["<td>", nbsp_if_empty(Data), "</td>\n"].
+
+
+tuple_list(List, Attrs, Parents, E) ->
+ Elems = case find_attribute(elements, Attrs) of
+ {value, Es} ->
+ Es;
+ false ->
+ case List of
+ [H|_] ->
+ lists:seq(1,size(H));
+ [] ->
+ []
+ end
+ end,
+ TableData = [{row, [{col, {element(P, Rec)}} || P <- Elems]} ||
+ Rec <- List],
+ Table = case find_attribute(heading, Attrs) of
+ {value, Cols} ->
+ Head = {heading, [{col, C} || C <- Cols]},
+ {table, [Head | TableData]};
+ false ->
+ {table, TableData}
+ end,
+ {'#xml-redefine#', Table}.
+
+
+data(Data, Pos, Attrs, Parents) ->
+ mk_string(Data).
+
+
+
+p(Data, Pos, Attrs, Parents) ->
+ {'#xml-alias#', 'P'}.
+
+para(Data, Pos, Attrs, Parents) ->
+ {'#xml-alias#', 'P'}.
+
+'P'(Data, Pos, Attrs, Parents) ->
+ ["<p>", mk_string(Data), "</p>\n"].
+
+
+emphasis(Str, Pos, Attrs, Parents) ->
+ ["<strong>", Str, "</strong>"].
+
+
+nbsp_if_empty(Data) when binary(Data), size(Data) == 0 ->
+ "&nbsp;";
+nbsp_if_empty(Data) when list(Data) ->
+ case catch list_to_binary(Data) of
+ {'EXIT', _} ->
+ nbsp_if_empty_term(Data);
+ B when size(B) == 0 ->
+ "&nbsp;";
+ _ ->
+ Data
+ end;
+nbsp_if_empty(Data) ->
+ nbsp_if_empty_term(Data).
+
+nbsp_if_empty_term(Data) ->
+ Str = io_lib:format("~p", [Data]),
+ case list_to_binary(Str) of
+ B when size(B) == 0 ->
+ "&nbsp;";
+ _ ->
+ Str
+ end.
+
+
+mk_string(I) when integer(I) ->
+ integer_to_list(I);
+mk_string(A) when atom(A) ->
+ atom_to_list(A);
+mk_string(L) when list(L) ->
+ %% again, we can't regognize a string without "parsing" it
+ case catch list_to_binary(L) of
+ {'EXIT',_} ->
+ io_lib:format("~p", [L]);
+ _ ->
+ L
+ end;
+mk_string(Term) ->
+ io_lib:format("~p", [Term]).
+
+
+
+find_attribute(Name, Attrs) ->
+ case lists:keysearch(Name, #xmlAttribute.name, Attrs) of
+ {value, #xmlAttribute{value = V}} ->
+ {value, V};
+ false ->
+ false
+ end.
diff --git a/lib/xmerl/doc/examples/xmerl_test.erl b/lib/xmerl/doc/examples/xmerl_test.erl
new file mode 100644
index 0000000000..b4288431f2
--- /dev/null
+++ b/lib/xmerl/doc/examples/xmerl_test.erl
@@ -0,0 +1,522 @@
+-module(xmerl_test).
+
+-compile(export_all).
+%%-export([Function/Arity, ...]).
+
+-define(XMERL_APP,).
+
+-include("xmerl.hrl").
+
+%% Export to HTML from "simple" format
+test1() ->
+ xmerl:export_simple(simple(), xmerl_html, [{title, "Doc Title"}]).
+
+
+%% Export to XML from "simple" format
+test2() ->
+ xmerl:export_simple(simple(), xmerl_xml, [{title, "Doc Title"}]).
+
+
+%% Parse XHTML, and export result to HTML and text
+test3() ->
+ FetchFun = fun(_DTDSpec, S) -> {ok, not_fetched,S} end,
+ {A, _} = xmerl_scan:string(html(),
+ [{fetch_fun,FetchFun}]),
+ io:format("From xmerl_scan:string/2~n ~p~n", [A]),
+ B = xmerl:export([A], xmerl_html),
+ io:format("From xmerl:export/2 xmerl_html filter~n ~p~n", [B]),
+ C = xmerl:export([A], xmerl_text),
+ io:format("From xmerl:export/2 xmerl_text filter~n ~p~n", [C]).
+
+
+test4() ->
+ FetchFun = fun(_DTDSpec, S) -> {ok, not_fetched, S} end,
+ {A,_} = xmerl_scan:string(xml_namespace(),
+ [{fetch_fun,FetchFun},
+ {namespace_conformant,true}]),
+ io:format("From xmerl_scan:string/2~n ~p~n", [A]).
+
+test5() ->
+ {ok, Cwd} = file:get_cwd(), % Assume we are in the examples dir...
+ File = Cwd ++ "/xml/xmerl.xml",
+ FetchFun = fun(_DTDSpec, S) -> {ok, not_fetched, S} end,
+% {Resp0,Rest0}=xmerl_eventp:stream(File,[]),
+% io:format("Tree: ~p~n",[Resp0]),
+ {Resp1, _Rest1}=xmerl_eventp:file_sax(File, ?MODULE, undefined,
+ [{fetch_fun, FetchFun}]),
+ io:format("Using file_sax: counted ~p paragraphs~n", [Resp1]),
+ {Resp2, _Rest2} = xmerl_eventp:stream_sax(File, ?MODULE, undefined, []),
+ io:format("Using stream_sax: counted ~p paragraphs~n", [Resp2]).
+
+test6() ->
+ FetchFun = fun(_DTDSpec, S) -> {ok, {string,""}, S} end,
+ {Doc, _} = xmerl_scan:string(xml_namespace(),
+ [{fetch_fun, FetchFun},
+ {namespace_conformant, true}]),
+ E = xmerl_xpath:string("child::title[position()=1]", Doc),
+ io:format("From xmerl_scan:string/2~n E=~p~n", [E]).
+
+
+simple() ->
+ [{document,
+ [{title, ["Doc Title"]},
+ {author, ["Ulf Wiger"]},
+ {section,[{heading, ["heading1"]},
+ {'P', ["This is a paragraph of text."]},
+ {section,[{heading, ["heading2"]},
+ {'P', ["This is another paragraph."]},
+ {table,[{border, ["1"]},
+ {heading,[{col, ["head1"]},
+ {col, ["head2"]}]},
+ {row, [{col, ["col11"]},
+ {col, ["col12"]}]},
+ {row, [{col, ["col21"]},
+ {col, ["col22"]}]}
+ ]}
+ ]}
+ ]}
+ ]}
+ ].
+
+
+html() ->
+ "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"DTD/xhtml1-strict.dtd\"><html>"
+ "<head><title>Doc Title</title><author>Ulf Wiger</author></head>"
+ "<h1>heading1</h1>"
+ "<p>This is a paragraph of text.</p>"
+ "<h2>heading2</h2>"
+ "<p>This is another paragraph.</p>"
+ "<table>"
+ "<thead><tr><td>head1</td><td>head2</td></tr></thead>"
+ "<tr><td>col11</td><td>col122</td></tr>"
+ "<tr><td>col21</td><td>col122</td></tr>"
+ "</table>"
+ "</html>".
+
+xml_namespace() ->
+ "<?xml version=\"1.0\"?>"
+ "<!-- initially, the default namespace is \"books\" -->"
+ "<book xmlns='urn:loc.gov:books' xmlns:isbn='urn:ISBN:0-395-36341-6'>"
+ "<title>Cheaper by the Dozen</title>"
+ "<isbn:number>1568491379</isbn:number>"
+ "<notes>"
+ "<!-- make HTML the default namespace for some comments -->"
+ "<p xmlns='urn:w3-org-ns:HTML'>"
+ "This is a <i>funny</i> book!"
+ "</p>"
+ "</notes>"
+ "</book>".
+
+
+%%% ============================================================================
+%%% Generic callbacks
+
+%'#text#'(Text) ->
+% [].
+
+'#root#'(Data, Attrs, [], _E) ->
+ io:format("root... Data=~p Attrs=~p E=~p~n",[Data,Attrs,_E]),
+ [].
+
+'#element#'(Tag, Data, Attrs, _Parents, _E) ->
+ io:format("Tag=~p~n Data=~p~n Attrs=~p~n Parents=~p~n E=~p~n",
+ [Tag, Data, Attrs, _Parents, _E]),
+ [].
+
+'#element#'(_Tag, _Data, _Attrs, CBstate) ->
+% io:format("Tag=~p~n Data=~p~n Attrs=~p~n CBstate=~p~n",
+% [Tag, Data, Attrs, CBstate]),
+ CBstate.
+
+'#text#'(Text, CBstate) ->
+ io:format("Text=~p~n CBstate=~p~n",
+ [Text, CBstate]),
+ CBstate.
+
+
+'#xml-inheritance#'() ->
+ [xmerl_html].
+
+
+
+
+%%% ============================================================================
+%%% To run these tests you must first download the testsuite from www.w3c.org
+%%% xmlconf.xml is the main test file that contains references to all the tests.
+%%% Thus parse this, export result and execute tests in the call-back functions.
+%%% Note:
+%%% - xmerl assumes all characters are represented with a single integer.
+w3cvalidate() ->
+ Tests = filename:join(filename:dirname(filename:absname(code:which(xmerl))),
+ "../w3c/xmlconf/xmlconf.xml"),
+ TestDir = filename:dirname(Tests),
+ io:format("Looking for W3C tests at ~p~n", [Tests]),
+ {ok, Bin} = file:read_file(Tests),
+
+% String = ucs:to_unicode(binary_to_list(Bin), 'utf-8'),
+% case xmerl_scan:string(String, [{xmlbase, TestDir}]) of
+ case xmerl_scan:string(binary_to_list(Bin), [{xmlbase, TestDir}]) of
+ {error, Reason} ->
+ io:format("ERROR xmerl:scan_file/2 Reason=~w~n", [Reason]);
+ {A, _Res} ->
+% io:format("From xmerl:scan_file/2 ~n A=~p~n Res=~w~n", [A,Res]),
+ C = xmerl:export([A], xmerl_test),
+ io:format("From xmerl:export/2 xmerl_text filter~n ~p~n", [C])
+ end.
+
+
+'TESTSUITE'(_Data, Attrs, _Parents, _E) ->
+ _Profile = find_attribute('PROFILE', Attrs),
+% io:format("testsuite Profile=~p~n", [Profile]),
+ [].
+
+'TESTCASES'(_Data, Attrs, _Parents, _E) ->
+ Profile = find_attribute('PROFILE', Attrs),
+ XMLbase = find_attribute('xml:base', Attrs),
+ io:format("testsuite Profile=~p~n xml:base=~p~n", [Profile, XMLbase]),
+ [].
+
+%% More info on Canonical Forms can be found at:
+%% http://dev.w3.org/cvsweb/~checkout~/2001/XML-Test-Suite/xmlconf/sun/cxml.html?content-type=text/html;%20charset=iso-8859-1
+'TEST'(Data, Attrs, _Parents, E) ->
+% io:format("test Attrs=~p~n Parents=~p~n E=~p~n",[Attrs, _Parents, E]),
+ Id = find_attribute('ID', Attrs),
+ io:format("Test: ~p ",[Id]),
+ Entities = find_attribute('ENTITIES', Attrs), % Always handle all entities
+ Output1 = find_attribute('OUTPUT', Attrs), %
+ Output3 = find_attribute('OUTPUT3', Attrs), % FIXME!
+ Sections = find_attribute('SECTIONS', Attrs),
+ Recommendation = find_attribute('RECOMMENDATION', Attrs), % FIXME!
+ Type = find_attribute('TYPE', Attrs), % Always handle all entities
+ Version = find_attribute('VERSION', Attrs), % FIXME!
+ URI = find_attribute('URI', Attrs),
+ Namespace = find_attribute('NAMESPACE', Attrs), % FIXME!
+
+ OutputForm=
+ if
+ Output1 =/= undefined -> Output1;
+ true -> Output3
+ end,
+ Test = filename:join(E#xmlElement.xmlbase, URI),
+% io:format("TEST URI=~p~n E=~p~n",[Test,E]),
+ case Type of
+ "valid" ->
+% io:format("Data=~p~n Attrs=~p~n Parents=~p~n Path=~p~n",
+% [Data, Attrs, _Parents, Test]),
+ test_valid(Test, Data, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace);
+ "invalid" ->
+ test_invalid(Test, Data, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace);
+ "not-wf" ->
+ test_notwf(Test, Data, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace);
+ "error" ->
+ test_error(Test, Data, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace)
+ end,
+ [].
+
+%% Really basic HTML font tweaks, to support highlighting
+%% some aspects of test descriptions ...
+'EM'(Data, _Attrs, _Parents, _E) ->
+ [$" |Data ++ [$"]].
+
+'B'(Data, _Attrs, _Parents, _E) ->
+ [$" |Data ++ [$"]].
+
+
+
+find_attribute(Tag,Attrs) ->
+ case xmerl_lib:find_attribute(Tag, Attrs) of
+ {value, Id} -> Id;
+ false -> undefined
+ end.
+
+
+-define(CONT, false).
+
+%%% All parsers must accept "valid" testcases.
+test_valid(URI, Data, Sections, Entities, OutputForm, Recommendation, Version,
+ Namespace) ->
+ io:format("nonvalidating ", []),
+ case nonvalidating_parser_q(URI) of
+ {Res, Tail} when is_record(Res, xmlElement) ->
+ case is_whitespace(Tail) of
+ true ->
+ io:format("OK ", []),
+ ok;
+ false ->
+ print_error({Res, Tail}, URI, Sections, Entities, OutputForm,
+ Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end;
+ Error ->
+ print_error(Error, URI, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end,
+ io:format("validating ", []),
+ case validating_parser_q(URI) of
+ {Res2, Tail2} when is_record(Res2, xmlElement) ->
+ case is_whitespace(Tail2) of
+ true ->
+ io:format("OK~n", []),
+ ok;
+ false ->
+ print_error({Res2, Tail2}, URI, Sections, Entities, OutputForm,
+ Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end;
+ Error2 ->
+ print_error(Error2, URI, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end.
+
+
+%%% Nonvalidating parsers must accept "invalid" testcases, but validating ones
+%%% must reject them.
+test_invalid(URI, Data, Sections, Entities, OutputForm, Recommendation, Version,
+ Namespace) ->
+ io:format("nonvalidating ", []),
+ case nonvalidating_parser_q(URI) of
+ {Res,Tail} when is_record(Res, xmlElement) ->
+ case is_whitespace(Tail) of
+ true ->
+ io:format("OK ", []),
+ ok;
+ false ->
+ print_error({Res, Tail}, URI, Sections, Entities, OutputForm,
+ Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end;
+ Error ->
+ print_error(Error, URI, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end,
+ io:format("validating ", []),
+ case validating_parser_q(URI) of
+ {Res2, Tail2} when is_record(Res2, xmlElement) ->
+ case is_whitespace(Tail2) of
+ false ->
+ io:format("OK~n", []),
+ ok;
+ true ->
+ print_error({Res2, Tail2}, URI, Sections, Entities, OutputForm,
+ Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end;
+ {error, enoent} ->
+ print_error("Testfile not found", URI, Sections, Entities, OutputForm,
+ Recommendation, Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end;
+ _Error2 ->
+ io:format("OK~n", []),
+ ok
+ end.
+
+%%% No parser should accept a "not-wf" testcase unless it's a nonvalidating
+%%% parser and the test contains external entities that the parser doesn't read
+test_notwf(URI, Data, Sections, Entities, OutputForm, Recommendation, Version,
+ Namespace) ->
+ io:format("nonvalidating ", []),
+ case nonvalidating_parser_q(URI) of
+ {Res, Tail} when is_record(Res, xmlElement) ->
+ case is_whitespace(Tail) of
+ false ->
+ io:format("OK ", []),
+ ok;
+ true ->
+ print_error({Res, Tail}, URI, Sections, Entities, OutputForm,
+ Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end;
+ {error,enoent} ->
+ print_error("Testfile not found",URI,Sections,Entities,OutputForm,
+ Recommendation,Version,Namespace,Data),
+ if
+ ?CONT==false -> throw({'EXIT', failed_test});
+ true -> error
+ end;
+ _Error ->
+ io:format("OK ",[]),
+ ok
+ end,
+ io:format("validating ",[]),
+ case validating_parser_q(URI) of
+ {Res2, Tail2} when is_record(Res2, xmlElement) ->
+ case is_whitespace(Tail2) of
+ false ->
+ io:format("OK~n", []),
+ ok;
+ true ->
+ print_error({Res2, Tail2}, URI, Sections, Entities, OutputForm,
+ Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end;
+ {error,enoent} ->
+ print_error("Testfile not found", URI, Sections, Entities, OutputForm,
+ Recommendation, Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end;
+ _Error2 ->
+ io:format("OK~n", []),
+ ok
+ end.
+
+%%% Parsers are not required to report "errors", but xmerl will always...
+test_error(URI, Data, Sections, Entities, OutputForm, Recommendation, Version,
+ Namespace) ->
+ io:format("nonvalidating ", []),
+ case nonvalidating_parser_q(URI) of
+ {'EXIT', _Reason} ->
+ io:format("OK ", []),
+ ok;
+ {error, enoent} ->
+ print_error("Testfile not found", URI, Sections, Entities, OutputForm,
+ Recommendation, Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end;
+ Res ->
+ print_error(Res, URI, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end,
+ io:format("validating ", []),
+ case validating_parser_q(URI) of
+ {'EXIT', _Reason2} ->
+ io:format("OK~n", []),
+ ok;
+ {error, enoent} ->
+ print_error("Testfile not found", URI, Sections, Entities, OutputForm,
+ Recommendation, Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end;
+ Res2 ->
+ print_error(Res2, URI, Sections, Entities, OutputForm, Recommendation,
+ Version, Namespace, Data),
+ if
+ ?CONT == false -> throw({'EXIT', failed_test});
+ true -> error
+ end
+ end.
+
+
+%%% Use xmerl as nonvalidating XML parser
+nonvalidating_parser(URI) ->
+ (catch xmerl_scan:file(URI, [])).
+
+
+%%% Use xmerl as nonvalidating XML parser
+nonvalidating_parser_q(URI) ->
+ (catch xmerl_scan:file(URI, [{quiet, true}])).
+
+
+%%% Use xmerl as validating XML parser
+validating_parser(URI) ->
+ (catch xmerl_scan:file(URI, [{validation, true}])).
+
+
+%%% Use xmerl as validating XML parser
+validating_parser_q(URI) ->
+ (catch xmerl_scan:file(URI, [{validation, true}, {quiet, true}])).
+
+
+is_whitespace([]) ->
+ true;
+is_whitespace([H |Rest]) when ?whitespace(H) ->
+ is_whitespace(Rest);
+is_whitespace(_) ->
+ false.
+
+
+print_error(Error, URI, Sections, Entities, OutputForm, Recommendation, Version,
+ Namespace, Data) ->
+ io:format("ERROR ~p~n URI=~p~n See Section ~s~n",[Error, URI, Sections]),
+ if
+ Entities == undefined -> ok;
+ true -> io:format(" Entities =~s~n",[Entities])
+ end,
+ if
+ OutputForm == undefined -> ok;
+ true -> io:format(" OutputForm=~s FIXME!~n",[OutputForm])
+ end,
+ if
+ Recommendation == undefined -> ok;
+ true -> io:format(" Recommendation=~s~n",[Recommendation])
+ end,
+ if
+ Version == undefined -> ok;
+ true -> io:format(" Version =~s~n",[Version])
+ end,
+ if
+ Namespace == undefined -> ok;
+ true -> io:format(" Namespace =~s~n",[Namespace])
+ end,
+ io:format(Data).
+
+
+
+
+
+
+
+
+
+%%% ============================================================================
+%%% Callbacks for parsing of Simplified DocBook XML
+
+para(_Data, _Attrs, US) ->
+ case US of
+ Int when is_integer(Int) -> Int+1;
+ undefined -> 1
+ end.
+
+
diff --git a/lib/xmerl/doc/examples/xml/test.xml b/lib/xmerl/doc/examples/xml/test.xml
new file mode 100755
index 0000000000..e803a83560
--- /dev/null
+++ b/lib/xmerl/doc/examples/xml/test.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" ?>
+<People>
+ <Person Type = "Personal">
+ </Person>
+</People>
+
diff --git a/lib/xmerl/doc/examples/xml/test2.xml b/lib/xmerl/doc/examples/xml/test2.xml
new file mode 100755
index 0000000000..0cb11194fc
--- /dev/null
+++ b/lib/xmerl/doc/examples/xml/test2.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding = "ISO-8859-1" ?>
+<People>
+ <!-- This is a real comment -->
+ <comment>This is a comment</comment>
+ <Person Type = "Personal">
+ </Person>
+</People>
+
diff --git a/lib/xmerl/doc/examples/xml/test3.xml b/lib/xmerl/doc/examples/xml/test3.xml
new file mode 100755
index 0000000000..dbdc1e62c2
--- /dev/null
+++ b/lib/xmerl/doc/examples/xml/test3.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding = 'ISO-8859-1' ?>
+<People>
+ <!-- This is a real comment -->
+ <comment>This is a comment</comment>
+ <Person Type = "Personal">
+ </Person>
+</People>
+
diff --git a/lib/xmerl/doc/examples/xml/test4.xml b/lib/xmerl/doc/examples/xml/test4.xml
new file mode 100755
index 0000000000..e9d85b8d8f
--- /dev/null
+++ b/lib/xmerl/doc/examples/xml/test4.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding = 'ISO-8859-1' ?>
+<People>
+ <!-- This is a real comment -->
+ <comment>
+ This is a comment
+ </comment>
+ <Person Type = "Personal">
+ </Person>
+</People>
diff --git a/lib/xmerl/doc/examples/xml/test5.xml b/lib/xmerl/doc/examples/xml/test5.xml
new file mode 100755
index 0000000000..e9d85b8d8f
--- /dev/null
+++ b/lib/xmerl/doc/examples/xml/test5.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding = 'ISO-8859-1' ?>
+<People>
+ <!-- This is a real comment -->
+ <comment>
+ This is a comment
+ </comment>
+ <Person Type = "Personal">
+ </Person>
+</People>
diff --git a/lib/xmerl/doc/examples/xml/testdtd.dtd b/lib/xmerl/doc/examples/xml/testdtd.dtd
new file mode 100755
index 0000000000..2ce1c513a6
--- /dev/null
+++ b/lib/xmerl/doc/examples/xml/testdtd.dtd
@@ -0,0 +1,17 @@
+<!ELEMENT PARAMETER ( #PCDATA | PARAMETER )* >
+<!ATTLIST PARAMETER NR ( 1000024 | 1000025 | 1000101 | 1000102 | 1000103
+| 1000105 | 1000110 | 1000115 | 1000198 ) #REQUIRED >
+<!ATTLIST PARAMETER UNIT CDATA #REQUIRED >
+
+<!ELEMENT PRODUCT ( USER_DEF, PRODUCTELEMENT+ ) >
+<!ATTLIST PRODUCT CUSTOMER CDATA #REQUIRED >
+<!ATTLIST PRODUCT DESCRIPTION CDATA #REQUIRED >
+<!ATTLIST PRODUCT GENERATOR NMTOKEN #REQUIRED >
+<!ATTLIST PRODUCT PRODUCTID NMTOKEN #REQUIRED >
+
+<!ELEMENT PRODUCTELEMENT ( PARAMETER+ ) >
+<!ATTLIST PRODUCTELEMENT ELEMENTID CDATA #REQUIRED >
+<!ATTLIST PRODUCTELEMENT TYPE NMTOKEN #REQUIRED >
+
+<!ELEMENT USER_DEF ( #PCDATA ) >
+
diff --git a/lib/xmerl/doc/examples/xml/xmerl.xml b/lib/xmerl/doc/examples/xml/xmerl.xml
new file mode 100755
index 0000000000..f02282dbef
--- /dev/null
+++ b/lib/xmerl/doc/examples/xml/xmerl.xml
@@ -0,0 +1,523 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!DOCTYPE article
+ PUBLIC "-//OASIS//DTD Simplified DocBook XML V1.0//EN"
+ "http://www.oasis-open.org/docbook/xml/simple/1.0/sdocbook.dtd">
+
+<article lang="en" xml:lang="en" >
+ <articleinfo>
+ <title>XMerL - XML processing tools for Erlang</title>
+ <subtitle>Reference Manual</subtitle>
+ <authorgroup>
+ <author>
+ <firstname>Ulf</firstname>
+ <surname>Wiger</surname>
+ </author>
+ </authorgroup>
+ <revhistory>
+ <revision>
+ <revnumber>1.0</revnumber><date>2003-02-04</date>
+ <revremark>Converted xml from html</revremark>
+ </revision>
+ </revhistory>
+ <abstract>
+ <para>XMerL tools contains xmerl_scan; a non-validating XML
+ processor, xmerl_xpath; a XPath implementation, xmerl for export
+ of XML trees to HTML, XML or text and xmerl_xs for XSLT like
+ transforms in erlang.
+ </para>
+ </abstract>
+ </articleinfo>
+
+ <section>
+ <title>xmerl_scan - the XML processor</title>
+ <para>The (non-validating) XML processor is activated through
+ <computeroutput>xmerl_scan:string/[1,2]</computeroutput> or
+ <computeroutput>xmerl_scan:file/[1,2]</computeroutput>.
+ It returns records of the type defined in xmerl.hrl.
+ </para>
+
+ <para>As far as I can tell, xmerl_scan implements the complete XML
+ 1.0 spec, including:</para>
+ <itemizedlist>
+ <listitem><para>entity expansion</para></listitem>
+ <listitem><para>fetching and parsing external DTDs</para></listitem>
+ <listitem><para>contitional processing</para></listitem>
+ <listitem><para>UniCode</para></listitem>
+ <listitem><para>XML Names</para></listitem>
+ </itemizedlist>
+ <programlisting>
+xmerl_scan:string(Text [ , Options ]) -> #xmlElement{}.
+xmerl_scan:file(Filename [ , Options ]) -> #xmlElement{}. </programlisting>
+
+ <para>The Options are basically to specify the behaviour of the
+ scanner. See the source code for details, but you can specify
+ funs to handle scanner events (event_fun), process the document
+ entities once identified (hook_fun), and decide what to do if the
+ scanner runs into eof before the document is complete
+ (continuation_fun).</para>
+
+ <para>You can also specify a path (fetch_path) as a list of
+ directories to search when fetching files. If the file in question
+ is not in the fetch_path, the URI will be used as a file
+ name.</para>
+
+
+ <section>
+ <title>Customization functions</title>
+ <para>The XML processor offers a number of hooks for
+ customization. These hooks are defined as function objects, and
+ can be provided by the caller.</para>
+
+ <para>The following customization functions are available. If
+ they also have access to their own state variable, the access
+ function for this state is identified within parentheses:</para>
+
+ <itemizedlist>
+
+ <listitem><para>event function (<computeroutput>
+ xmerl_scan:event_state/[1,2]
+ </computeroutput>)</para></listitem>
+
+ <listitem><para>hook function (<computeroutput>
+ xmerl_scan:hook_state/[1,2]
+ </computeroutput>)</para></listitem>
+
+ <listitem><para>fetch function (<computeroutput>
+ xmerl_scan:fetch_state/[1,2] </computeroutput>)
+ </para></listitem>
+
+ <listitem><para>continuation function (<computeroutput>
+ xmerl_scan:cont_state/[1,2] </computeroutput>)
+ </para></listitem>
+
+ <listitem><para>rules function (<computeroutput>
+ xmerl_scan:rules_state/[1,2] </computeroutput>)
+ </para></listitem>
+
+ <listitem><para>accumulator function</para></listitem>
+
+ <listitem><para>close function</para></listitem>
+
+ </itemizedlist>
+
+ <para>For all of the above state access functions, the function
+ with one argument
+ (e.g. <computeroutput>event_fun(GlobalState)</computeroutput>)
+ will read the state variable, while the function with two
+ arguments (e.g.: <computeroutput>event_fun(NewStateData,
+ GlobalState)</computeroutput>) will modify it.</para>
+
+ <para>For each function, the description starts with the syntax
+ for specifying the function in the
+ <computeroutput>Options</computeroutput> list. The general forms
+ are <computeroutput>{Tag, Fun}</computeroutput>, or
+ <computeroutput>{Tag, Fun, LocalState}</computeroutput>. The
+ second form can be used to initialize the state variable in
+ question.</para>
+
+ <section>
+ <title>User State</title>
+
+ <para>All customization functions are free to access a
+ &quot;User state&quot; variable. Care must of course be taken
+ to coordinate the use of this state. It is recommended that
+ functions, which do not really have anything to contribute to
+ the &quot;global&quot; user state, use their own state
+ variable instead. Another option (used in
+ e.g. <computeroutput>xmerl_eventp.erl</computeroutput>) is for
+ customization functions to share one of the local states (in
+ <computeroutput>xmerl_eventp.erl</computeroutput>, the
+ continuation function and the fetch function both acces the
+ <computeroutput>cont_state</computeroutput>.)</para>
+
+ <para>Functions to access user state:</para>
+
+ <itemizedlist>
+
+ <listitem><para><computeroutput>
+ xmerl_scan:user_state(GlobalState) </computeroutput>
+ </para></listitem>
+
+ <listitem><para><computeroutput>xmerl_scan:user_state(UserState',
+ GlobalState) </computeroutput></para></listitem>
+
+ </itemizedlist>
+
+ </section>
+ <section>
+ <title>Event Function</title>
+
+ <para><computeroutput>{event_fun, fun()} | {event_fun, fun(),
+ LocalState}</computeroutput></para>
+
+ <para>The event function is called at the beginning and at the
+ end of a parsed entity. It has the following format and
+ semantics:</para>
+
+<programlisting>
+<![CDATA[
+fun(Event, GlobalState) ->
+ EventState = xmerl_scan:event_state(GlobalState),
+ EventState' = foo(Event, EventState),
+ GlobalState' = xmerl_scan:event_state(EventState', GlobalState)
+end.
+]]></programlisting>
+
+ </section>
+ <section>
+ <title>Hook Function</title>
+ <para> <computeroutput>{hook_fun, fun()} | {hook_fun, fun(),
+ LocalState}</computeroutput></para>
+
+
+
+<para>The hook function is called when the processor has parsed a complete
+entity. Format and semantics:</para>
+
+<programlisting>
+<![CDATA[
+fun(Entity, GlobalState) ->
+ HookState = xmerl_scan:hook_state(GlobalState),
+ {TransformedEntity, HookState'} = foo(Entity, HookState),
+ GlobalState' = xmerl_scan:hook_state(HookState', GlobalState),
+ {TransformedEntity, GlobalState'}
+end.
+]]></programlisting>
+
+ <para>The relationship between the event function, the hook
+ function and the accumulator function is as follows:</para>
+
+ <orderedlist>
+ <listitem><para>The event function is first called with an
+ 'ended' event for the parsed entity.</para></listitem>
+
+ <listitem><para>The hook function is called, possibly
+ re-formatting the entity.</para></listitem>
+
+ <listitem><para>The acc function is called in order to
+ (optionally) add the re-formatted entity to the contents of
+ its parent element.</para></listitem>
+
+ </orderedlist>
+
+ </section>
+ <section>
+ <title>Fetch Function</title>
+<para>
+<computeroutput>{fetch_fun, fun()} | {fetch_fun, fun(), LocalState}</computeroutput>
+</para>
+<para>The fetch function is called in order to fetch an external resource
+(e.g. a DTD).</para>
+
+<para>The fetch function can respond with three different return values:</para>
+
+ <programlisting>
+<![CDATA[
+ Result ::=
+ {ok, GlobalState'} |
+ {ok, {file, Filename}, GlobalState'} |
+ {ok, {string, String}, GlobalState'}
+]]></programlisting>
+
+<para>Format and semantics:</para>
+
+ <programlisting>
+<![CDATA[
+fun(URI, GlobalState) ->
+ FetchState = xmerl_scan:fetch_state(GlobalState),
+ Result = foo(URI, FetchState). % Result being one of the above
+end.
+]]></programlisting>
+
+ </section>
+ <section>
+ <title>Continuation Function</title>
+<para>
+<computeroutput>{continuation_fun, fun()} | {continuation_fun, fun(), LocalState}</computeroutput>
+</para>
+<para>The continuation function is called when the parser encounters the end
+of the byte stream. Format and semantics:</para>
+
+ <programlisting>
+<![CDATA[
+fun(Continue, Exception, GlobalState) ->
+ ContState = xmerl_scan:cont_state(GlobalState),
+ {Result, ContState'} = get_more_bytes(ContState),
+ GlobalState' = xmerl_scan:cont_state(ContState', GlobalState),
+ case Result of
+ [] ->
+ GlobalState' = xmerl_scan:cont_state(ContState', GlobalState),
+ Exception(GlobalState');
+ MoreBytes ->
+ {MoreBytes', Rest} = end_on_whitespace_char(MoreBytes),
+ ContState'' = update_cont_state(Rest, ContState'),
+ GlobalState' = xmerl_scan:cont_state(ContState'', GlobalState),
+ Continue(MoreBytes', GlobalState')
+ end
+end.
+]]></programlisting>
+ </section>
+ <section>
+ <title>Rules Functions</title>
+ <para>
+<computeroutput>
+{rules, ReadFun : fun(), WriteFun : fun(), LocalState} |
+{rules, Table : ets()}</computeroutput>
+</para>
+ <para>The rules functions take care of storing scanner
+ information in a rules database. User-provided rules functions
+ may opt to store the information in mnesia, or perhaps in the
+ user_state(LocalState).</para>
+
+ <para>The following modes exist:</para>
+
+ <itemizedlist>
+
+ <listitem><para>If the user doesn't specify an option, the
+ scanner creates an ets table, and uses built-in functions to
+ read and write data to it. When the scanner is done, the ets
+ table is deleted.</para></listitem>
+
+ <listitem><para>If the user specifies an ets table via the
+ <computeroutput>{rules, Table}</computeroutput> option, the
+ scanner uses this table. When the scanner is done, it does
+ <emphasis>not</emphasis> delete the table.</para></listitem>
+
+ <listitem><para>If the user specifies read and write
+ functions, the scanner will use them instead.</para></listitem>
+
+ </itemizedlist>
+
+ <para>The format for the read and write functions are as
+ follows:</para>
+
+
+<programlisting>
+<![CDATA[
+WriteFun(Context, Name, Definition, ScannerState) -> NewScannerState.
+ReadFun(Context, Name, ScannerState) -> Definition | undefined.
+]]></programlisting>
+
+ <para>Here is a summary of the data objects currently being
+ written by the scanner:</para>
+
+ <table>
+ <title>Scanner data objects</title>
+ <tgroup cols="3">
+ <thead>
+ <row>
+ <entry>Context</entry>
+ <entry>Key Value</entry>
+ <entry>Definition</entry>
+ </row>
+ </thead>
+ <tbody>
+ <row>
+ <entry>notation</entry>
+ <entry>NotationName</entry>
+ <entry><computeroutput>{system, SL} | {public, PIDL, SL}</computeroutput></entry>
+ </row>
+ <row>
+ <entry>elem_def</entry>
+ <entry>ElementName</entry>
+ <entry><computeroutput>#xmlElement{content = ContentSpec}</computeroutput></entry>
+ </row>
+ <row>
+ <entry>parameter_entity</entry>
+ <entry>PEName</entry>
+ <entry><computeroutput>PEDef</computeroutput></entry>
+ </row>
+ <row>
+ <entry>entity</entry>
+ <entry>EntityName</entry>
+ <entry><computeroutput>EntityDef</computeroutput></entry>
+ </row>
+ </tbody>
+ </tgroup>
+ </table>
+
+
+<programlisting>
+<![CDATA[
+ContentSpec ::= empty | any | ElemContent
+ElemContent ::= {Mode, Elems}
+Mode ::= seq | choice
+Elems ::= [Elem]
+Elem ::= '#PCDATA' | Name | ElemContent | {Occurrence, Elems}
+Occurrence ::= '*' | '?' | '+'
+]]></programlisting>
+ <note><para>When &lt;Elem&gt; is not wrapped with
+&lt;Occurrence&gt;, (Occurrence = once) is implied.</para></note>
+
+ </section>
+ <section>
+ <title>Accumulator Function</title>
+ <para><computeroutput>{acc_fun, fun()} | {acc_fun, fun(),
+ LocalState}</computeroutput></para>
+
+ <para>The accumulator function is called to accumulate the
+ contents of an entity.When parsing very large files, it may
+ not be desireable to do so.In this case, an acc function can
+ be provided that simply doesn't accumulate.</para>
+
+ <para>Note that it is possible to even modify the parsed
+ entity before accumulating it, but this must be done with
+ care. <computeroutput>xmerl_scan</computeroutput> performs
+ post-processing of the element for namespace management. Thus,
+ the element must keep its original structure for this to
+ work.</para>
+
+ <para>The acc function has the following format and
+ semantics:</para>
+
+ <programlisting>
+<![CDATA[
+%% default accumulating acc fun
+fun(ParsedEntity, Acc, GlobalState) ->
+ {[X|Acc], GlobalState}.
+
+%% non-accumulating acc fun
+fun(ParsedEntity, Acc, GlobalState) ->
+ {Acc, GlobalState}.
+]]></programlisting>
+ </section>
+ <section>
+ <title>Close Function</title>
+
+ <para>The close function is called when a document (either the
+ main document or an external DTD) has been completely
+ parsed. When xmerl_scan was started using
+ <computeroutput>xmerl_scan:file/[1,2]</computeroutput>, the
+ file will be read in full, and closed immediately, before the
+ parsing starts, so when the close function is called, it will
+ not need to actually close the file. In this case, the close
+ function will be a good place to modify the state
+ variables.</para>
+
+ <para>Format and semantics:</para>
+
+ <programlisting>
+<![CDATA[
+fun(GlobalState) ->
+ GlobalState' = .... % state variables may be altered
+]]></programlisting>
+ </section>
+
+ </section>
+
+ </section>
+
+ <section>
+ <title>XPATH</title>
+
+ <programlisting>
+<![CDATA[
+xmerl_xpath:string(QueryString, #xmlElement{}) ->
+ [DocEntity]
+
+DocEntity : #xmlElement{}
+ | #xmlAttribute{}
+ | #xmlText{}
+ | #xmlPI{}
+ | #xmlComment{}
+]]></programlisting>
+
+ <para>The xmerl_xpath module does seem to handle the entire XPATH
+ 1.0 spec, but I haven't tested that much yet. The grammar is
+ defined in
+ <computeroutput>xmerl_xpath_parse.yrl</computeroutput>. The core
+ functions are defined in
+ <computeroutput>xmerl_xpath_pred.erl</computeroutput>.</para>
+ </section>
+ <section>
+ <title>Some useful shell commands for debugging the XPath parser</title>
+<para>
+ <command>
+<![CDATA[
+c(xmerl_xpath_scan).
+yecc:yecc("xmerl_xpath_parse.yrl", "xmerl_xpath_parse", true, []).
+c(xmerl_xpath_parse).
+
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("position() > -1")).
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("5 * 6 div 2")).
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("5 + 6 mod 2")).
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("5 * 6")).
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("5 * 6")).
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("-----6")).
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("parent::node()")).
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("descendant-or-self::node()")).
+xmerl_xpath_parse:parse(xmerl_xpath_scan:tokens("parent::processing-instruction('foo')")).]]></command></para>
+ </section>
+ <section>
+ <title>Erlang Data Structure Export</title>
+
+ <para>The idea as follows:</para>
+
+ <para>The Erlang data structure should look like this:</para>
+ <programlisting>
+<![CDATA[
+Element: {Tag, Attributes, Content}
+Tag : atom()
+Attributes: [{Key, Value}]
+Content: [String | Element]
+String: [char() | binary() | String]
+]]></programlisting>
+
+ <para>Some short forms are allowed:</para>
+ <programlisting>
+<![CDATA[
+{Tag, Content} -> {Tag, [], Content}
+Tag -> {Tag, [], []}
+]]></programlisting>
+
+ <para>Note that content lists must be flat, but strings can be
+ deep.</para>
+
+ <para>It is also allowed to include normal
+ <computeroutput>#xml...</computeroutput> elements in the simple
+ format.</para>
+
+ <para><computeroutput>xmerl:export_simple(Data,
+ Callback)</computeroutput> takes the above data structure and
+ exports it, using the callback module
+ <computeroutput>Callback</computeroutput>.</para>
+
+ <para>The callback module should contain hook functions for all
+ tags present in the data structure. The hook function must have
+ the format:</para>
+ <para><computeroutput> Tag(Data, Attrs, Parents, E)
+ </computeroutput></para>
+
+ <para>where E is an <computeroutput>#xmlElement{}</computeroutput>
+ record (see <computeroutput>xmerl.hrl</computeroutput>).</para>
+
+ <para>Attrs is converted from the simple <computeroutput>[{Key,
+ Value}]</computeroutput> to
+ <computeroutput>[#xmlAttribute{}]</computeroutput></para>
+
+ <para>Parents is a list of <computeroutput>[{ParentTag,
+ ParentTagPosition}]</computeroutput>.</para>
+
+ <para>The hook function should return either the Data to be
+ exported, or the tuple <computeroutput>{'#xml-redefine#',
+ NewStructure}</computeroutput>, where
+ <computeroutput>NewStructure</computeroutput> is an element (which
+ can be simple), or a (simple-) content list wrapped in a 1-tuple
+ as <computeroutput>{NewContent}</computeroutput>.</para>
+
+ <para>The callback module can inherit definitions from other
+ callback modules, through the required function
+ <computeroutput>'#xml-interitance#() ->
+ [ModuleName]</computeroutput>. </para>
+
+ <para>As long as a tag is represented in one of the callback
+ modules, things will work. It is of course also possible to
+ redefine a tag.</para>
+ <section>
+ <title>XSLT like transforms</title>
+ <para>See separate document <ulink url="xmerl_xs.html" >xmerl_xs.html
+ </ulink></para>.
+ </section>
+ </section>
+
+</article>
diff --git a/lib/xmerl/doc/examples/xml/xmerl_xs.xml b/lib/xmerl/doc/examples/xml/xmerl_xs.xml
new file mode 100644
index 0000000000..9a798808b9
--- /dev/null
+++ b/lib/xmerl/doc/examples/xml/xmerl_xs.xml
@@ -0,0 +1,541 @@
+<?xml version="1.0" encoding="iso-8859-1"?>
+<!DOCTYPE article
+ PUBLIC "-//OASIS//DTD Simplified DocBook XML V1.0//EN"
+ "http://www.oasis-open.org/docbook/xml/simple/1.0/sdocbook.dtd">
+
+<article lang="en" xml:lang="en" >
+ <articleinfo>
+ <title>XSLT like transformations in Erlang </title>
+ <subtitle>User Guide</subtitle>
+ <authorgroup>
+ <author>
+ <firstname>Mikael</firstname>
+ <surname>Karlsson</surname>
+ </author>
+ </authorgroup>
+ <revhistory>
+ <revision>
+ <revnumber>1.0</revnumber><date>2002-10-25</date>
+ <revremark>First Draft</revremark>
+ </revision>
+ <revision>
+ <revnumber>1.1</revnumber><date>2003-02-05</date>
+ <revremark>Moved module xserl to xmerl application, renamed to
+ xmerl_xs</revremark>
+ </revision>
+ </revhistory>
+ <abstract>
+ <para>Erlang has similarities to XSLT since both languages
+ have a functional programming approach. Using the xpath implementation
+ in the existing xmerl application it is possible to write XSLT
+ like transforms in Erlang. One can also combine the
+ transformations with the erlang scripting possibility
+ in the yaws webserver to implement "on the fly" html
+ conversions of xml documents.
+ </para>
+ </abstract>
+ </articleinfo>
+
+
+ <section>
+ <title>Terminology</title>
+ <variablelist>
+ <varlistentry>
+ <term>XML</term>
+ <listitem>
+ <para>Extensible Markup Language</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>XSLT</term>
+ <listitem>
+ <para>Extensible Stylesheet Language: Transformations</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </section>
+ <section>
+ <title>Introduction</title>
+ <para>XSLT stylesheets are often used when transforming XML
+ documents, to other XML documents or (X)HTML for presentation.
+ There are a number of brick-sized books written on the
+ topic. XSLT contains quite many
+ functions and learning them all may take some effort, which
+ could be a reason why the author only has reached a basic level of
+ understanding. This document assumes a basic level of
+ understanding of XSLT.
+ </para>
+ <para>Since XSLT is based on a functional programming approach
+ with pattern matching and recursion it is possible to write
+ similar style sheets in Erlang. At least for basic
+ transforms. XPath which is used in XSLT is also already
+ implemented in the xmerl application written i Erlang. This
+ document describes how to use the XPath implementation together
+ with Erlangs pattern matching and a couple of functions to write
+ XSLT like transforms.</para>
+ <para>This approach is probably easier for an Erlanger but
+ if you need to use real XSLT stylesheets in order to "comply to
+ the standard" there is an adapter available to the Sablotron
+ XSLT package which is written i C++.
+ </para>
+ <para>
+ This document is written in the Simplified Docbook DTD which is
+ a subset of the complete one and converted to xhtml using a
+ stylesheet written in Erlang.
+ </para>
+ </section>
+
+ <section>
+ <title>Tools</title>
+ <section>
+ <title>xmerl</title>
+ <para><ulink url="http://sowap.sourceforge.net/" >xmerl</ulink>
+ is a xml parser written in Erlang</para>
+ <section>
+ <title>xmerl_xpath</title>
+ <para>XPath is in important part of XSLT and is implemented in
+ xmerl</para>
+ </section>
+ <section>
+ <title>xmerl_xs</title>
+ <para>
+ <ulink url="xmerl_xs.yaws" >xmerl_xs</ulink> is a very small
+ module acting as "syntactic sugar" for the XSLT lookalike
+ transforms. It uses xmerl_xpath.
+ </para>
+ </section>
+ </section>
+
+ <section>
+ <title>yaws</title>
+ <para>
+ <ulink url="http://yaws.hyber.org/" >Yaws</ulink>, Yet Another
+ Webserver, is a web server written in Erlang that support dynamic
+ content generation using embedded scripts, also written in Erlang.
+ </para>
+<!--
+ <figure>
+ <title>The Yaws logo</title>
+ <mediaobject>
+ <imageobject>
+ <imagedata fileref="yaws_pb.gif" format="GIF" scale="50%"/>
+ </imageobject>
+ </mediaobject>
+ </figure>
+-->
+ <para>Yaws is not needed to make the XSLT like transformations, but
+ combining yaws and xmerl it is possible to do transformations
+ of XML documents to HTML in realtime, when clients requests a
+ web page. As an example I am able to edit this document using
+ emacs with psgml tools, save the document and just do a reload
+ in my browser to see the result. The parse/transform time is not
+ visually different compared to loading any other document in the
+ browser.
+ </para>
+ </section>
+
+ </section>
+
+ <section>
+ <title>Transformations</title>
+<para>
+ When xmerl_scan parses an xml string/file it returns a record of:
+</para>
+ <programlisting>
+<![CDATA[
+ -record(xmlElement, {
+ name,
+ parents = [],
+ pos,
+ attributes = [],
+ content = [],
+ language = [],
+ expanded_name = [],
+ nsinfo = [],% {Prefix, Local} | []
+ namespace = #xmlNamespace{}
+ }).
+ ]]>
+</programlisting>
+<para>
+ Were content is a mixed list of yet other xmlElement records and/or
+ xmlText (or other node types).
+</para>
+ <section>
+ <title>xmerl_xs functions</title>
+ <para>
+ Functions used:
+ </para>
+ <variablelist>
+ <varlistentry>
+ <term>xslapply/2</term>
+ <listitem>
+ <para>function to make things look similar
+ to xsl:apply-templates.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>value_of/1</term>
+ <listitem>
+ <para>Conatenates all text nodes within a tree.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>select/2</term>
+ <listitem>
+ <para>select(Str, E) extracts nodes from the XML tree using
+ xmerl_xpath.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>built_in_rules/2</term>
+ <listitem>
+ <para>The default fallback behaviour, template funs should
+ end with:
+ <computeroutput>template(E)->built_in_rules(fun
+ template/1, E).
+</computeroutput>
+ </para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+<note><para>Text is escaped using xmerl_lib:export_text/1 for
+ "&lt;", "&gt;" and other relevant xml
+ characters when exported. So the value_of/1 and built_in_rules/2
+ functions should be replaced when not exporting to xml or html.
+</para></note>
+ </section>
+
+
+<section><title>Examples</title>
+ <example>
+ <title>Using xslapply</title>
+ <para>original XSLT:</para>
+ <programlisting>
+<![CDATA[
+ <xsl:template match="doc/title">
+ <h1>
+ <xsl:apply-templates/>
+ </h1>
+ </xsl:template>
+ ]]>
+ </programlisting>
+ <para>
+ becomes in Erlang:</para>
+ <programlisting>
+<![CDATA[
+ template(E = #xmlElement{ parents=[{'doc',_}|_], name='title'}) ->
+ ["<h1>",
+ xslapply(fun template/1, E),
+ "</h1>"];
+ ]]>
+ </programlisting>
+
+ </example>
+ <example>
+ <title>Using value_of and select</title>
+ <programlisting>
+<![CDATA[
+ <xsl:template match="title">
+ <div align="center"><h1><xsl:value-of select="." /></h1></div>
+ </xsl:template>
+ ]]>
+ </programlisting>
+ <para>
+ becomes:
+ </para>
+ <programlisting>
+<![CDATA[
+template(E = #xmlElement{name='title'}) ->
+ ["<div align=\"center\"><h1>", value_of(select(".", E)), "</h1></div>"];
+ ]]>
+ </programlisting>
+ </example>
+ <example>
+ <title>Simple xsl stylesheet</title>
+<para>
+ A complete example with the XSLT sheet in the xmerl distribution.
+</para>
+ <programlisting>
+<![CDATA[
+
+<xsl:stylesheet version="1.0"
+ xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+ xmlns="http://www.w3.org/TR/xhtml1/strict">
+
+ <xsl:strip-space elements="doc chapter section"/>
+ <xsl:output
+ method="xml"
+ indent="yes"
+ encoding="iso-8859-1"
+ />
+
+ <xsl:template match="doc">
+ <html>
+ <head>
+ <title>
+ <xsl:value-of select="title"/>
+ </title>
+ </head>
+ <body>
+ <xsl:apply-templates/>
+ </body>
+ </html>
+ </xsl:template>
+
+ <xsl:template match="doc/title">
+ <h1>
+ <xsl:apply-templates/>
+ </h1>
+ </xsl:template>
+
+ <xsl:template match="chapter/title">
+ <h2>
+ <xsl:apply-templates/>
+ </h2>
+ </xsl:template>
+
+ <xsl:template match="section/title">
+ <h3>
+ <xsl:apply-templates/>
+ </h3>
+ </xsl:template>
+
+ <xsl:template match="para">
+ <p>
+ <xsl:apply-templates/>
+ </p>
+ </xsl:template>
+
+ <xsl:template match="note">
+ <p class="note">
+ <b>NOTE: </b>
+ <xsl:apply-templates/>
+ </p>
+ </xsl:template>
+
+ <xsl:template match="emph">
+ <em>
+ <xsl:apply-templates/>
+ </em>
+ </xsl:template>
+
+</xsl:stylesheet>
+ ]]>
+ </programlisting>
+ </example>
+ <example>
+ <title>Erlang version</title>
+ <para>
+ Erlang transformation of previous example:
+ </para>
+ <programlisting>
+<![CDATA[
+
+-include("xmerl.hrl").
+
+-import(xmerl_xs,
+ [ xslapply/2, value_of/1, select/2, built_in_rules/2 ]).
+
+doctype()->
+ "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\
+ \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd \">".
+
+process_xml(Doc)->
+ template(Doc).
+
+template(E = #xmlElement{name='doc'})->
+ [ "<\?xml version=\"1.0\" encoding=\"iso-8859-1\"\?>",
+ doctype(),
+ "<html xmlns=\"http://www.w3.org/1999/xhtml\" >"
+ "<head>"
+ "<title>", value_of(select("title",E)), "</title>"
+ "</head>"
+ "<body>",
+ xslapply( fun template/1, E),
+ "</body>"
+ "</html>" ];
+
+
+template(E = #xmlElement{ parents=[{'doc',_}|_], name='title'}) ->
+ ["<h1>",
+ xslapply( fun template/1, E),
+ "</h1>"];
+
+template(E = #xmlElement{ parents=[{'chapter',_}|_], name='title'}) ->
+ ["<h2>",
+ xslapply( fun template/1, E),
+ "</h2>"];
+
+template(E = #xmlElement{ parents=[{'section',_}|_], name='title'}) ->
+ ["<h3>",
+ xslapply( fun template/1, E),
+ "</h3>"];
+
+template(E = #xmlElement{ name='para'}) ->
+ ["<p>", xslapply( fun template/1, E), "</p>"];
+
+template(E = #xmlElement{ name='note'}) ->
+ ["<p class=\"note\">"
+ "<b>NOTE: </b>",
+ xslapply( fun template/1, E),
+ "</p>"];
+
+template(E = #xmlElement{ name='emph'}) ->
+ ["<em>", xslapply( fun template/1, E), "</em>"];
+
+template(E)->
+ built_in_rules( fun template/1, E).
+ ]]>
+ </programlisting>
+ <para>
+ It is important to end with a call to
+ <computeroutput>xmerl_xs:built_in_rules/2</computeroutput>
+ if you want any text to be written in "push" transforms.
+ That are the ones using a lot <computeroutput>xslapply( fun
+ template/1, E )</computeroutput> instead of
+ <computeroutput>value_of(select("xpath",E))</computeroutput>,
+ which is pull...
+ </para>
+ </example>
+<para>The largest example is the stylesheet to transform this document
+ from the Simplified Docbook XML format to xhtml. The source
+ file is <computeroutput>sdocbook2xhtml.erl</computeroutput>.
+</para>
+</section>
+ <section>
+ <title>Tips and tricks</title>
+ <section>
+ <title>for-each</title>
+ <para>The function for-each is quite common in XSLT stylesheets.
+ It can often be rewritten and replaced by select/1. Since
+ select/1 returns a list of #xmlElements and xslapply/2
+ traverses them it is more or less the same as to loop over all
+ the elements.
+ </para>
+ </section>
+ <section>
+ <title>position()</title>
+ <para>The XSLT position() and #xmlElement.pos are not the
+ same. One has to make an own position in Erlang.</para>
+ <example>
+ <title>Counting positions</title>
+ <programlisting>
+<![CDATA[
+<xsl:template match="stanza">
+ <p><xsl:apply-templates select="line" /></p>
+</xsl:template>
+
+<xsl:template match="line">
+ <xsl:if test="position() mod 2 = 0">&#160;&#160;</xsl:if>
+ <xsl:value-of select="." /><br />
+</xsl:template>
+ ]]>
+ </programlisting>
+<para>Can be written as</para>
+ <programlisting>
+<![CDATA[
+template(E = #xmlElement{name='stanza'}) ->
+ {Lines,LineNo} = lists:mapfoldl(fun template_pos/2, 1, select("line", E)),
+ ["<p>", Lines, "</p>"].
+
+template_pos(E = #xmlElement{name='line'}, P) ->
+ {[indent_line(P rem 2), value_of(E#xmlElement.content), "<br />"], P + 1 }.
+
+indent_line(0)->"&#160;&#160;";
+indent_line(_)->"".
+ ]]>
+ </programlisting>
+ </example>
+ </section>
+ <section>
+ <title>Global tree awareness</title>
+ <para>In XSLT you have "root" access to the top of the tree
+ with XPath, even though you are somewhere deep in your
+ tree.</para>
+ <para>The xslapply/2 function only carries back the child part
+ of the tree to the template fun. But it is quite easy to write
+ template funs that handles both the child and top tree.</para>
+ <example>
+ <title>Passing the root tree</title>
+ <para>The following example piece will prepend the article
+ title to any section title</para>
+ <programlisting>
+<![CDATA[
+template(E = #xmlElement{name='title'}, ETop ) ->
+ ["<h3>", value_of(select("title", ETop))," - ",
+ xslapply( fun(A) -> template(A, ETop) end, E),
+ "</h3>"];
+ ]]>
+ </programlisting>
+ </example>
+ </section>
+ </section>
+
+ </section>
+
+
+ <section>
+ <title>Utility functions</title>
+ <para>
+ The module xmerl_xs contains the functions
+ <computeroutput>mapxml/2, foldxml/3</computeroutput> and
+ <computeroutput> mapfoldxml/3</computeroutput> to traverse
+ <literal>#xmlElement</literal> trees. They can be used in order
+ to build cross-references, see sdocbook2xhtml.erl for instance
+ where <computeroutput>foldxml/3</computeroutput> and
+ <computeroutput> mapfoldxml/3</computeroutput> are used to
+ number chapters, examples and figures and to build the Table of
+ contents for the document.
+ </para>
+ </section>
+
+
+ <section>
+ <title>Future enhancements</title>
+ <para>
+ More wish- than task-list at the moment.
+ </para>
+ <itemizedlist>
+ <listitem>
+ <para>More stylesheets</para>
+ </listitem>
+ <listitem>
+ <para>On the fly exports to PDF for printing and also more
+ "polished" presentations.
+ </para>
+ </listitem>
+ </itemizedlist>
+ </section>
+
+ <section>
+ <title>References</title>
+ <orderedlist>
+ <listitem>
+ <para><ulink url="../xml/xmerl_xs.xml" >XML source
+ file</ulink> for this document.
+ </para>
+ </listitem>
+ <listitem>
+ <para><ulink url="../xs/sdocbook2xhtml.erl" >Erlang style
+ sheet</ulink> used for this document. (Simplified Docbook DTD).</para>
+ </listitem>
+ <listitem>
+ <para><ulink url="http://www.erlang.org/" >Open Source Erlang</ulink>
+ </para>
+ </listitem>
+ </orderedlist>
+
+ </section>
+</article>
+
+<!--
+Local Variables:
+mode: xml
+sgml-indent-step: 2
+sgml-indent-data: t
+sgml-set-face: t
+sgml-insert-missing-element-comment: nil
+End:
+-->
diff --git a/lib/xmerl/doc/examples/xserl_test.erl b/lib/xmerl/doc/examples/xserl_test.erl
new file mode 100644
index 0000000000..69db75cfe8
--- /dev/null
+++ b/lib/xmerl/doc/examples/xserl_test.erl
@@ -0,0 +1,85 @@
+-module(xserl_test).
+-include("xmerl.hrl").
+-import(xserl,[ xslapply/2, value_of/1, select/2, built_in_rules/2 ]).
+-export([process_xml/1,test/0]).
+
+doctype()->
+ "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\
+ \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd \">".
+
+test() ->
+ Str= "<?xml version=\"1.0\"?>"
+ "<doc xmlns='urn:loc.gov:books' xmlns:isbn='urn:ISBN:0-395-36341-6'>"
+ "<title>Cheaper by the Dozen</title>"
+ "<isbn:number>1568491379</isbn:number>"
+ "<note>"
+ "<!-- make HTML the default namespace for some commentary -->"
+ "<p xmlns='urn:w3-org-ns:HTML'>"
+ "This is a <i>funny</i> book!"
+ "</p>"
+ "</note>"
+ "</doc>",
+ {Doc,_}=xmerl_scan:string(Str,[{fetch_fun, fun(DTDSpec,S) -> {ok,S} end}]),
+
+ process_xml(Doc).
+
+process_xml(Doc)->
+ template(Doc).
+
+template(E = #xmlElement{name='doc'})->
+ [ "<\?xml version=\"1.0\" encoding=\"iso-8859-1\"\?>",
+ doctype(),
+ "<html xmlns=\"http://www.w3.org/1999/xhtml\" >"
+ "<head>"
+ "<title>", xserl:value_of(select("title",E)), "</title>"
+ "</head>"
+ "<body>",
+ xslapply( fun template/1, E),
+ "</body>"
+ "</html>" ];
+
+
+template(E = #xmlElement{ parents=[{'doc',_}|_], name='title'}) ->
+ ["<h1>",
+%% xslapply( fun template/1, E),
+%% same as
+ lists:map( fun template/1, E#xmlElement.content ),
+ "</h1>"];
+
+template(E = #xmlElement{ parents=[{'chapter',_}|_], name='title'}) ->
+ ["<h2>",
+ xslapply( fun template/1, E),
+ "</h2>"];
+
+template(E = #xmlElement{ parents=[{'section',_}|_], name='title'}) ->
+ ["<h3>",
+ xslapply( fun template/1, E),
+ "</h3>"];
+
+template(E = #xmlElement{ name='para'}) ->
+ ["<p>",
+ xslapply( fun template/1, E),
+ "</p>"];
+
+template(E = #xmlElement{ name='note'}) ->
+ ["<p class=\"note\">"
+ "<b>NOTE: </b>",
+ xslapply( fun template/1, E),
+ "</p>"];
+
+template(E = #xmlElement{ name='emph'}) ->
+ ["<em>",
+ xslapply( fun template/1, E),
+ "</em>"];
+
+template(E)->
+ built_in_rules( fun template/1, E).
+
+%% It is important to end with a call to xserl:built_in_rules/2
+%% if you want any text to be written in "push" transforms.
+%% That are the ones using a lot xslapply( fun template/1, E )
+%% instead of value_of(select("xpath",E)), which is pull...
+%% Could maybe be caught as an exception in xslapply instead,
+%% but I think that could degrade performance - having an
+%% exception for every #xmlText element.
+