Class: Teius::Node
- Inherits:
-
Object
- Object
- Teius::Node
- Defined in:
- lib/teius.rb,
ext/teius.c
Direct Known Subclasses
Instance Method Summary collapse
- #==(other) ⇒ Object
- #[](key) ⇒ Object
-
#attributes ⇒ Object
Returns a ruby hash of node’s elements.
- #children ⇒ Object
-
#content ⇒ Object
Returns the recursive content of the node in string format.
- #document ⇒ Object
- #eql?(other) ⇒ Boolean
- #fetch(xpath) ⇒ Object
- #find(*args) ⇒ Object
- #hash ⇒ Object
-
#line ⇒ Object
Returns the line number the node starts on.
- #name ⇒ Object
- #parent ⇒ Object
- #pointer ⇒ Object
- #siblings ⇒ Object
- #to_s ⇒ Object
- #type ⇒ Object
- #value ⇒ Object
- #xpath ⇒ Object
Instance Method Details
#==(other) ⇒ Object
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# File 'lib/teius.rb', line 28 def ==(other) return false unless other.kind_of? Node self.pointer == other.pointer end |
#[](key) ⇒ Object
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# File 'lib/teius.rb', line 24 def [](key) attributes[key] end |
#attributes ⇒ Object
Returns a ruby hash of node’s elements
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# File 'ext/teius.c', line 55
static VALUE node_attributes(VALUE self) {
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
xmlAttrPtr attrs = node->properties;
VALUE rHash = rb_hash_new();
while (attrs != NULL) {
VALUE rName = rb_str_new2((char *)attrs->name);
xmlChar *val = xmlNodeGetContent(attrs->children);
VALUE rVal = rb_str_new2((char *)val);
rb_hash_aset(rHash, rName, rVal);
xmlFree(val);
attrs = attrs->next;
}
return rHash;
}
|
#children ⇒ Object
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# File 'ext/teius.c', line 218
static VALUE node_children(VALUE self) {
xmlNodePtr node = NULL;
xmlNodePtr cur_child = NULL;
Data_Get_Struct(self, xmlNode, node);
VALUE rArr = rb_ary_new();
for (cur_child = node->children; cur_child != NULL; cur_child = cur_child->next) {
VALUE rNode = Data_Wrap_Struct(cNode, 0, 0, cur_child);
rb_ary_push(rArr, rNode);
}
return rArr;
}
|
#content ⇒ Object
Returns the recursive content of the node in string format
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# File 'ext/teius.c', line 202
static VALUE node_content(VALUE self) {
xmlNodePtr node = NULL;
const xmlChar *mem;
xmlBufferPtr buf;
int size;
Data_Get_Struct(self, xmlNode, node);
buf = xmlBufferCreate();
size = xmlNodeDump(buf, node->doc, node, 0, 1);
mem = xmlBufferContent(buf);
VALUE rStr = rb_str_new2((char *)mem);
xmlBufferFree(buf);
return rStr;
}
|
#document ⇒ Object
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# File 'ext/teius.c', line 44
static VALUE node_document(VALUE self) {
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
xmlDocPtr doc = node->doc;
/* Don't GC this one -- it's just a reference to the original */
return Data_Wrap_Struct(cDocument, 0, 0, doc);
}
|
#eql?(other) ⇒ Boolean
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# File 'lib/teius.rb', line 33 def eql?(other) return false unless other.kind_of? Node self.pointer == other.pointer end |
#fetch(xpath) ⇒ Object
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# File 'lib/teius.rb', line 19 def fetch(xpath) node = find(:unique, xpath, :required => false) return node ? node.value : nil end |
#find(*args) ⇒ Object
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# File 'ext/teius.c', line 73
static VALUE node_find(int argc, VALUE *argv, VALUE self) {
VALUE rType, rXpath, rOptions;
rb_scan_args(argc, argv, "21", &rType, &rXpath, &rOptions);
int required = 0;
if (argc == 3) {
VALUE rRequired = rb_hash_aref(rOptions, ID2SYM(sRequired));
required = rRequired != Qnil && rRequired != Qfalse;
}
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
xmlDocPtr doc = node->doc;
xmlXPathContextPtr context;
xmlXPathObjectPtr result;
context = xmlXPathNewContext(doc);
context->node = node;
char *xpath = StringValuePtr(rXpath);
result = xmlXPathEvalExpression((xmlChar *)xpath, context);
if (result == NULL) {
xmlErrorPtr err = xmlGetLastError();
xmlXPathFreeContext(context);
rb_raise(cXpathError, "Couldn't evaluate xpath [%s]: %s",
xpath, err->message);
}
xmlNodeSetPtr node_set = result->nodesetval;
int size = node_set != NULL ? node_set->nodeNr : 0;
ID type = SYM2ID(rType);
if (size == 0 && required) {
xmlXPathFreeObject(result);
xmlXPathFreeContext(context);
rb_raise(cNodeNotFound, "No such node in %s: %s", node->name, xpath);
} else if (size > 1 && type == sUnique) {
xmlXPathFreeObject(result);
xmlXPathFreeContext(context);
rb_raise(cNodeNotUnique, "node at path %s from %s is not unique",
xpath, node->name);
}
VALUE rResult;
if (type == sFirst || type == sUnique) { /* Just return first node */
if (size == 0) {
rResult = Qnil;
} else {
rResult = Data_Wrap_Struct(cNode, 0, 0, node_set->nodeTab[0]);
}
} else if (type == sAll) { /* Return ruby array of all nodes */
int i;
VALUE arr = rb_ary_new2(size);
for (i=0; i < size; i++) {
xmlNodePtr cur_node = node_set->nodeTab[i];
/* Create Node and store it in arr */
VALUE rNode = Data_Wrap_Struct(cNode, 0, 0, cur_node);
rb_ary_store(arr, i, rNode);
}
rResult = arr;
} else {
xmlXPathFreeObject(result);
xmlXPathFreeContext(context);
rb_raise(rb_eArgError, "Unknown type: :%s (should be :first, :unique or :all)",
rb_id2name(type));
}
xmlXPathFreeObject(result);
xmlXPathFreeContext(context);
return rResult;
}
|
#hash ⇒ Object
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# File 'lib/teius.rb', line 38 def hash self.pointer end |
#line ⇒ Object
Returns the line number the node starts on
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# File 'ext/teius.c', line 195
static VALUE node_line(VALUE self) {
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
return INT2NUM(node->line);
}
|
#name ⇒ Object
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# File 'ext/teius.c', line 147
static VALUE node_name(VALUE self) {
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
return rb_str_new2((char *)node->name);
}
|
#parent ⇒ Object
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# File 'lib/teius.rb', line 42 def parent self.find :first, '..' end |
#pointer ⇒ Object
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# File 'ext/teius.c', line 188
static VALUE node_pointer(VALUE self) {
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
return INT2NUM((int)node);
}
|
#siblings ⇒ Object
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# File 'lib/teius.rb', line 46 def siblings self.find :all, 'preceding-sibling::*|following-sibling::*' end |
#to_s ⇒ Object
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# File 'lib/teius.rb', line 50 def to_s "#{name}:#{line}" end |
#type ⇒ Object
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# File 'ext/teius.c', line 159
static VALUE node_type(VALUE self) {
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
switch (node->type) {
case 1: return ID2SYM(rb_intern("element"));
case 2: return ID2SYM(rb_intern("attribute"));
case 3: return ID2SYM(rb_intern("text"));
case 4: return ID2SYM(rb_intern("cdata_section"));
case 5: return ID2SYM(rb_intern("entity_ref"));
case 6: return ID2SYM(rb_intern("entity"));
case 7: return ID2SYM(rb_intern("pi"));
case 8: return ID2SYM(rb_intern("comment"));
case 9: return ID2SYM(rb_intern("document"));
case 10: return ID2SYM(rb_intern("document_type"));
case 11: return ID2SYM(rb_intern("document_fragment"));
case 12: return ID2SYM(rb_intern("notation"));
case 13: return ID2SYM(rb_intern("html_document"));
case 14: return ID2SYM(rb_intern("dtd"));
case 15: return ID2SYM(rb_intern("element_declaration"));
case 16: return ID2SYM(rb_intern("attribute_declaration"));
case 17: return ID2SYM(rb_intern("entity_declaration"));
case 18: return ID2SYM(rb_intern("namespace_declaration"));
case 19: return ID2SYM(rb_intern("xinclude_start"));
case 20: return ID2SYM(rb_intern("xinclude_end"));
case 21: return ID2SYM(rb_intern("docb_document"));
}
}
|
#value ⇒ Object
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# File 'ext/teius.c', line 33
static VALUE node_value(VALUE self) {
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
xmlChar *val = xmlNodeGetContent(node);
VALUE rVal = rb_str_new2((char *)val);
xmlFree(val);
return rVal;
}
|
#xpath ⇒ Object
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# File 'ext/teius.c', line 153
static VALUE node_xpath(VALUE self) {
xmlNodePtr node = NULL;
Data_Get_Struct(self, xmlNode, node);
return rb_str_new2((char *)xmlGetNodePath(node));
}
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