From fcf6b58a1f7a2eafa0db79f1715db1c193c3f346 Mon Sep 17 00:00:00 2001 From: Anthony Ramine Date: Sat, 18 Dec 2010 23:49:15 +0100 Subject: Add `default_attrs` option When `default_attrs` is `true`, any attribute with a default value defined in the doctype but not in the attribute axis of the currently scanned element is added to it. --- lib/xmerl/include/xmerl.hrl | 1 + lib/xmerl/src/xmerl_scan.erl | 34 ++++++++++++++++++++++++++++++++-- 2 files changed, 33 insertions(+), 2 deletions(-) (limited to 'lib/xmerl') diff --git a/lib/xmerl/include/xmerl.hrl b/lib/xmerl/include/xmerl.hrl index 9c471c437f..2e18e216e2 100644 --- a/lib/xmerl/include/xmerl.hrl +++ b/lib/xmerl/include/xmerl.hrl @@ -156,6 +156,7 @@ doctype_name, doctype_DTD = internal, % internal | DTDId document = false, + default_attrs = false, rules, keep_rules = false, % delete (ets) tab if false namespace_conformant = false, % true | false diff --git a/lib/xmerl/src/xmerl_scan.erl b/lib/xmerl/src/xmerl_scan.erl index 303fc26550..9e3e6ee728 100644 --- a/lib/xmerl/src/xmerl_scan.erl +++ b/lib/xmerl/src/xmerl_scan.erl @@ -103,6 +103,9 @@ %%
{document, Flag}
%%
Set to 'true' if xmerl should return a complete XML document %% as an xmlDocument record (default 'false').
+%%
{default_attrs, Flag}
+%%
Set to 'true' if xmerl should add to elements missing attributes +%% with a defined default value (default 'false').
%% %% @type document() = xmlElement() | xmlDocument().

%% The document returned by xmerl_scan:string/[1,2] and @@ -391,6 +394,8 @@ initial_state([{doctype_DTD,DTD}|T], S) -> initial_state(T,S#xmerl_scanner{doctype_DTD = DTD}); initial_state([{document, F}|T], S) when is_boolean(F) -> initial_state(T,S#xmerl_scanner{document = F}); +initial_state([{default_attrs, F}|T], S) when is_boolean(F) -> + initial_state(T,S#xmerl_scanner{default_attrs = F}); initial_state([{text_decl,Bool}|T], S) -> initial_state(T,S#xmerl_scanner{text_decl=Bool}); initial_state([{environment,Env}|T], S) -> @@ -2161,6 +2166,14 @@ scan_element(T, S, Pos, Name, StartL, StartC, Attrs, Lang, Parents, scan_element(T4, S5, Pos, Name, StartL, StartC, [Attr|Attrs], Lang, Parents, NSI, NewNS, SpaceDefault). +get_default_attrs(S = #xmerl_scanner{rules_read_fun = Read}, ElemName) -> + case Read(elem_def, ElemName, S) of + #xmlElement{attributes = Attrs} -> + [ {AttName, AttValue} || + {AttName, _, AttValue, _, _} <- Attrs, AttValue =/= no_value ]; + _ -> [] + end. + get_att_type(S=#xmerl_scanner{rules_read_fun=Read},AttName,ElemName) -> case Read(elem_def,ElemName,S) of #xmlElement{attributes = Attrs} -> @@ -2190,6 +2203,23 @@ processed_whole_element(S=#xmerl_scanner{hook_fun = _Hook, Pos, Name, Attrs, Lang, Parents, NSI, Namespace) -> Language = check_language(Attrs, Lang), + AllAttrs = + case S#xmerl_scanner.default_attrs of + true -> + [ #xmlAttribute{name = AttName, + parents = [{Name, Pos} | Parents], + language = Lang, + nsinfo = NSI, + namespace = Namespace, + value = AttValue, + normalized = true} || + {AttName, AttValue} <- get_default_attrs(S, Name), + AttValue =/= no_value, + not lists:keymember(AttName, #xmlAttribute.name, Attrs) ]; + false -> + Attrs + end, + {ExpName, ExpAttrs} = case S#xmerl_scanner.namespace_conformant of true -> @@ -2209,10 +2239,10 @@ processed_whole_element(S=#xmerl_scanner{hook_fun = _Hook, A#xmlAttribute.name, A#xmlAttribute.nsinfo, % NSI, - TempNamespace, S)} || A <- Attrs], + TempNamespace, S)} || A <- AllAttrs], {expanded_name(Name, NSI, Namespace, S), ExpAttrsX}; false -> - {Name, Attrs} + {Name, AllAttrs} end, #xmlElement{name = Name, -- cgit v1.2.3