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package ezxmlm
Module EzxmlmSource
An "easy" interface on top of the Xmlm library.
This version provides more convenient (but less flexible) input and output functions that go to and from string values. This avoids the need to write signal code, which is useful for quick scripts that manipulate XML.
More advanced users should go straight to the Xmlm library and use it directly, rather than be saddled with the Ezxmlm interface below.
Basic types
Raised by the query combinators
Reading XML values
Read an XML document from an in_channel
Low-level function to read directly from an Xmlm input source
Writing XML values
Write an XML document to an out_channel
Write an XML document to a string. This goes via an intermediate Buffer and so may be slow on large documents.
Low-level function to write directly to an Xmlm output source
pp fmt x will write a string representation of the XML document x to the formatter fmt.
Attribute handling
Source
val filter_attrs :
string ->
string ->
(Xmlm.attribute list * nodes) list ->
(Xmlm.attribute list * nodes) listGiven some selected attributes and nodes (usually from members_with_attr) return the ones that match the class and value supplied.
Source
val filter_attr :
string ->
string ->
(Xmlm.attribute list * nodes) list ->
Xmlm.attribute list * nodesGiven some selected attributes and nodes (usually from members_with_attr) return the first that matches the class and value supplied. Raises Not_found if nothing matches.
mem_attr name value attrs returns true if the name key is with value value is present in the attrs attribute list.
get_attr name attrs returns the value associated with key name in the attrs attribute list. Raised Not_found if the attribute is not present.
Selectors and utility functions
pick_tags tag attr value selects all the child nodes that match the tag name and contain an attribute with name tag and value.
pick_tag tag attr value selects the first child node that matches the tag name and contain an attribute with name tag and value. Raises Not_found if no such node exists.
Return the first tag in the list of nodes. Raises Not_found if the nodes are empty
Return all the tags but the first one in a list of nodes. Returns an empty list if the list is empty.
Make a tag given a tag name and body attributes and nodes
Convert a list of `Data fragments to a human-readable string. Any elements within the list are ignored, and multiple `Data fragments are concatenated.
Extracts the immediate subnodes that match the given tag name and return a tuple of the attributes associated with that tag and its child nodes.
Extracts the immediate subnodes that match the given tag name, and only return the contents of those tags (ignoring the attributes, which can be retrieved via the members_with_attr function
Extracts the first subnode that match the given tag name, and raises Tag_not_found if it can't find it.
Extracts the first subnode that match the given tag name, and raises Tag_not_found if it can't find it. Only the contents of the tag are returned (ignoring the attributes, which can be retrieved via the member_with_attr function instead
has_member tag subnodes returns true if the given tag name is present among the subnodes and false if it can't find it.
Traverses XML nodes and applies f to any tags that match the tag parameter. The result of the transformations is returned as a new set of nodes.
Traverses XML nodes and applies f to any tags that match the tag parameter.