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Core: XMLParser TagElseSkip, LoopTag

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git-svn-id: svn://ultimatepp.org/upp/trunk@6733 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2014-01-08 10:26:37 +00:00
parent 7817e6fa2a
commit 97eb4cf62e
3 changed files with 42 additions and 0 deletions
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18
uppsrc/Core/XML.cpp
View file

@ -556,6 +556,24 @@ void XmlParser::PassTagE(const char *tag)
SkipEnd();
}
bool XmlParser::TagElseSkip(const char *tag)
{
if(Tag(tag))
return true;
Skip();
return false;
}
bool XmlParser::LoopTag(const char *tag)
{
while(!End()) {
if(Tag(tag))
return true;
Skip();
}
return false;
}
VectorMap<String, String> XmlParser::PickAttrs() pick_
{
if(!IsNull(attr1))

2
uppsrc/Core/XML.h
View file

@ -117,6 +117,8 @@ public:
void PassEnd();
bool TagE(const char *tag);
void PassTagE(const char *tag);
bool TagElseSkip(const char *tag);
bool LoopTag(const char *tag);
int GetAttrCount() const { return attr.GetCount() + !IsNull(attr1); }
String GetAttr(int i) const { return i ? attr.GetKey(i - 1) : attr1; }

22
uppsrc/Core/src.tpp/XmlParser$en-us.tpp
View file

@ -96,6 +96,23 @@ t]_[@(0.0.255) char]_`*[*@3 tag])&]
[s2;%% Calls PassTag([%-*@3 tag]) and then PassEnd(). In other words,
requires to advance over element with empty content.&]
[s3;%% &]
[s4; &]
[s5;:XmlParser`:`:TagElseSkip`(const char`*`): [@(0.0.255) bool]_[* TagElseSkip]([@(0.0.255) c
onst]_[@(0.0.255) char]_`*[*@3 tag])&]
[s2;%% If call Tag([%-*@3 tag]).returns true. Otherwise calls Skip
and returns else. This is a shortcut to relatively common construct
[*C if(Tag(][%-*C@3 tag][*C )) `{ ... `} else Skip()][* ;]&]
[s3;%% &]
[s4; &]
[s5;:XmlParser`:`:LoopTag`(const char`*`): [@(0.0.255) bool]_[* LoopTag]([@(0.0.255) const]_
[@(0.0.255) char]_`*[*@3 tag])&]
[s2;%% If End call returns true, returns false. If call to Tag([%-*@3 tag])
returns true, returns true. Otherwise it calls Skip and repeats.
This is useful if we are only interested in just one type of
subtag of current level, e.g.: [*C while(LoopTag(`"foo`")) `{ ...
`}] `- is an equivalent of common construct [*C while(!End())
if(Tag(][%-*C@3 tag][*C )) `{ ... `} else Skip();]&]
[s3;%% &]
[s4;%% &]
[s5;:XmlParser`:`:GetAttrCount`(`)const: [@(0.0.255) int]_[* GetAttrCount]()_[@(0.0.255) co
nst]&]
@ -106,6 +123,11 @@ nst]&]
])_[@(0.0.255) const]&]
[s2;%% Returns the name of attribute [%-*@3 i ]of the last start`-tag.&]
[s3;%% &]
[s4; &]
[s5;:XmlParser`:`:IsAttr`(const char`*`)const: [@(0.0.255) bool]_[* IsAttr]([@(0.0.255) con
st]_[@(0.0.255) char]_`*[*@3 id])_[@(0.0.255) const]&]
[s2;%% Returns true if [%-*@3 id] an attribute of the last start`-tag.&]
[s3;%% &]
[s4;%% &]
[s5;:XmlParser`:`:operator`[`]`(int`)const: [_^String^ String]_[* operator`[`]]([@(0.0.255) i
nt]_[*@3 i])_[@(0.0.255) const]&]