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%%%-------------------------------------------------------------------
%%% File : xpath_lib.erl
%%% Author : Bertil Karlsson <bertil@finrod>
%%% Description :
%%%
%%% Created : 13 Jan 2006 by Bertil Karlsson <bertil@finrod>
%%%-------------------------------------------------------------------
-module(xpath_lib).
-export([test/0,check_node_set/2,ticket_6873/0]).
-include("test_server.hrl").
-include_lib("xmerl/include/xmerl.hrl").
test() ->
?line {E,_} = xmerl_scan:file("myBS_model.xml"),
?line Res1 = xmerl_xpath:string("blipp",E),
?line ok = check_node_set("blipp",Res1),
?line Res2 = xmerl_xpath:string("//blipp",E),
?line ok = check_node_set("//blipp",Res2),
?line Res3 = xmerl_xpath:string("/myBS_model/blipp",E),
?line ok = check_node_set("/myBS_model/blipp",Res3),
?line Res4 = xmerl_xpath:string("blipp[@id=\"name1\"]",E),
?line ok = check_node_set("blipp[@id=\"name1\"]",Res4),
?line Res5 = xmerl_xpath:string("//blipp[@id=\"name1\"]",E),
?line ok = check_node_set("//blipp[@id=\"name1\"]",Res5),
?line Res6 = xmerl_xpath:string("/myBS_model/blipp[@id=\"name1\"]",E),
?line ok = check_node_set("/myBS_model/blipp[@id=\"name1\"]",Res6).
check_node_set("blipp",[H1,H2]) ->
?line #xmlElement{name = blipp} = H1,
?line #xmlElement{name = blipp} = H2,
ok;
check_node_set("//blipp",[H1,H2]) ->
?line #xmlElement{name = blipp} = H1,
?line #xmlElement{name = blipp} = H2,
ok;
check_node_set("/myBS_model/blipp",[H1,H2]) ->
?line #xmlElement{name = blipp} = H1,
?line #xmlElement{name = blipp} = H2,
ok;
check_node_set("blipp[@id=\"name1\"]",[H]) ->
?line H#xmlElement{attributes=#xmlAttribute{name=id,value="name1"}},
ok;
check_node_set("//blipp[@id=\"name1\"]",[H]) ->
?line H#xmlElement{attributes=#xmlAttribute{name=id,value="name1"}},
ok;
check_node_set("/myBS_model/blipp[@id=\"name1\"]",[H]) ->
?line H#xmlElement{attributes=#xmlAttribute{name=id,value="name1"}},
ok.
ticket_6873() ->
GetId =
fun(Atts) ->
case lists:keysearch(id,#xmlAttribute.name,Atts) of
{value,#xmlAttribute{value=AttV}} -> AttV;
_ -> novalue
end
end,
Test =
fun(Doc, XPath, Exp) ->
Result = xmerl_xpath:string(XPath, Doc),
Exp = [begin
case Obj of
#xmlElement{name = EName,attributes=Atts} ->
{EName,GetId(Atts)};
#xmlAttribute{name = AName} ->
AName;
#xmlText{value=Text} ->
Text
end
end|| Obj <- Result],
ok
end,
Doc1 = get_doc("e1074"),
?line ok = Test(Doc1,"/*",[{root,"1"}]),
?line ok = Test(Doc1,"/root",[{root,"1"}]),
?line ok = Test(Doc1,"/root/*",[{elem1,"2"},{elem1,"8"},{e,"12"}]),
?line ok = Test(Doc1,"/root/e",[{e,"12"}]),
?line ok = Test(Doc1,"//e",[{e,"12"},{e,"4"},{e,"6"},{e,"10"},{e,"11"}]),
?line ok = Test(Doc1,"//*[name() != 'e']",
[{root,"1"},{elem1,"2"},{elem1,"8"},{elem2,"3"},
{elem3,"5"},{elem3,"7"},{elem2,"9"}]),
?line ok = Test(Doc1,"//elem1/e",[{e,"10"},{e,"11"}]),
?line ok = Test(Doc1,"//elem1//e",[{e,"4"},{e,"6"},{e,"10"},{e,"11"}]),
?line ok = Test(Doc1,"//*[*]",
[{root,"1"},{elem1,"2"},{elem1,"8"},
{elem2,"3"},{elem3,"5"}]),
?line ok = Test(Doc1,"//*[not(*)]",
[{e,"12"},{e,"4"},{elem3,"7"},{e,"6"},
{elem2,"9"},{e,"10"},{e,"11"}]),
%% contents would be empty in the above expression
?line [#xmlElement{content=[]}|_] = xmerl_xpath:string("//*[not(*)]",Doc1),
?line ok = Test(Doc1,"//*[e]",[{root,"1"},{elem1,"8"},{elem2,"3"},{elem3,"5"}]),
?line ok = Test(Doc1,"//*[count(e)>1]",[{elem1,"8"}]),
?line ok = Test(Doc1,"//*[not(e) and name() != 'e']",
[{elem1,"2"},{elem3,"7"},{elem2,"9"}]),
?line ok = Test(Doc1,"/*/*/*/e",[{e,"4"}]),
?line ok = Test(Doc1,"//*[starts-with(name(), 'el')]",
[{elem1,"2"},{elem1,"8"},{elem2,"3"},
{elem3,"5"},{elem3,"7"},{elem2,"9"}]),
?line ok = Test(Doc1,"//*[contains(name(), 'lem1')]",
[{elem1,"2"},{elem1,"8"}]),
?line ok = Test(Doc1,"/*/e | //elem2/e",[{e,"4"},{e,"12"}]),
io:format("Tested ~p~n",[e1074]),
Doc2 = get_doc("e1075"),
?line ok = Test(Doc2,"/*/*[1]",[{elem1,"2"}]),
?line ok = Test(Doc2,"/root/elem1[2]",[{elem1,"8"}]),
%% Get all first-born e elements in the document; that is, for all
%% e elements with e element siblings, include only the first
%% sibling.Note that //e[1] does not return the first e element in
%% the document because the [1] predicate applies to e, which
%% represents the set of e elements under one element and not to
%% //e, which represents the set of e elements in the document.
%% ?line ok = Test(Doc2,"//e[1]",[{e,"4"},{e,"6"},{e,"10"},{e,"12"}]),
%% The following expression retrieves the first e element in the
%% document:
%% ?line ok = Test(Doc2,"(//e)[1]",[{e,4}]),
%% For all e elements with e element siblings, include only the
%% first 3 siblings
%% ?line ok = Test(Doc2,"//e[position() <= 3]",[{e,"4"},{e,"6"},{e,"10"},{e,"11"},{e,"12"}]),
%% Get all last-born e elements in the document; that is, for all
%% e elements with e element siblings, include only the last
%% sibling
%% ?line ok = Test(Doc2,"//e[last()]",[{e,"4"},{e,"6"},{e,"11"},{e,"12"}]),
%% Get the last e element in the document
%% ?line ok = Test(Doc2,"(//e)[last()]", [{e,"12"}]),
io:format("Tested ~p~n",[e1075]),
Doc3 = get_doc("e1076"),
?line ok = Test(Doc3,"//*[.='cat']",[{elem1,"2"},{elem3,"6"}]),
?line ok = Test(Doc3,"//*[.='dog']",[]),
?line ok = Test(Doc3,"//*[contains(.,'cat')]",
[{elem1,"2"},{elem1,"4"},{elem3,"6"}]),
?line ok = Test(Doc3,"//elem3[contains(.,'cat')]",[{elem3,"6"}]),
?line ok = Test(Doc3,"//*[contains(child::text(),'cat')]",[{elem1,"2"},{elem1,"4"},{elem3,"6"}]),
?line ok = Test(Doc3,"//*[count(*)=0 and contains(.,'cat')]",[{elem1,"2"},{elem3,"6"}]),
?line ok = Test(Doc3,"//*[contains(translate(.,'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'),'CAT')]",[{elem1,"2"},{elem1,"4"},{elem1,"7"},{elem3,"6"}]),
io:format("Tested ~p~n",[e1076]),
Doc4 = get_doc("e1078"),
?line ok = Test(Doc4,"//*[@pet='cat']",[{elem1,"2"}]),
?line ok = Test(Doc4,"//*[@pet='dog']",[{elem1,"7"}]),
?line ok = Test(Doc4,"//*[contains(@pet,'dog')]",
[{elem1,"3"},{elem1,"7"}]),
?line ok = Test(Doc4,"//*[@age]",[{elem1,"3"},{elem3,"6"}]),
?line ok = Test(Doc4,"//elem1[@age]",[{elem1,"3"}]),
?line ok = Test(Doc4,"//*[@pet and @age]",[{elem1,"3"}]),
?line ok = Test(Doc4,"//*[contains(translate(@pet,'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'),'CAT')]",[{elem1,"2"},{elem1,"4"}]),
io:format("Tested ~p~n",[e1078]),
Doc5 = get_doc("e1077"),
?line ok = Test(Doc5,"id('3')",[{e,"3"}]),
%% Get all e elements directly under element id 3
%% ?line ok = Test(Doc5,"id('two')/e",[{e,"3"},{e,"4"},{e,"6"}]),
?line ok = Test(Doc5,"id('two 3 seven the fifth')",[{e,"seven"},{e,"3"},{e,"two"}]),
?line ok = Test(Doc5,"id('100')",[]),
io:format("Tested ~p~n",[e1077]),
ok.
get_doc(Name) ->
?line {Doc,_} = xmerl_scan:file(Name++".xml"),
Doc.
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