Now compatible with libxml2 2.12.0 and later (@KNnut).
Fixed format string issues detected in R-devel.
Remove unused dependencies on glue, withr and lifecycle (@mgirlich).
print() is faster for very long xml_nodeset inputs (#366, @michaelchirico).
xml_attr(), xml_attrs(), xml_double(), xml_integer(), xml_length(),
xml_name(), xml_path(), xml_text(), and xml_type() no longer use
S3 dispatch but instead dispatch in C, leading to considerable performance
improvements in many cases (@mgirlich, #400).
xml_find_int() analogous to xml_find_num() for returning integers
matched by an XPath (#365, @michaelchirico).
xml_serialize() now includes the document type so that xml_unserialize()
works also for HTML documents (#407, @HenrikBengtsson).
Fixes for R CMD check problems.
Windows: update to libxml2 2.10.3
Hadley Wickham is now (again) the maintainer.
xml2 has been re-licensed as MIT (#317).
xml_find_all.xml_node() fails more informatively the xpath parameter is the wrong type (@michaelchirico)
xml_find_all.xml_nodeset() gains a flatten argument to control whether to return a single nodeset or a list of nodesets (#311, @jakejh)
write_xml() and write_html() now return NULL invisibly, as they did prior to version 1.3.0 (#307)
XPtr gets explicit copy constructor and assignment operator definitions, which were two missing components of the Rule of three (@michaelchirico)
Windows: update to libxml2 2.9.10 and libxslt 1.1.34 and add ucrt libs
read_html() and read_xml() now error if passed strings of length greater than one (#121)
read_xml.raw() had an inadvertent regression in 1.3.0 and is now again fixed (#300)
Compilation fix on macOS 10.15.4 (@kevinushey, #296)
read_html() now again works with HTML files with non-ASCII encodings (#293).Fix potential dangling pointer with internal asXmlChar() function (@michaelquinn32, #287).
as_xml_document() now handles cases with text nodes trailing normal nodes (#274).
xml_add_child() can now create nodes with a par attribute. These previously errored due to partial name matching of the parent function in the internal create_node() function. (@jennybc, #285)
libxml2_version() now returns a semantic version rather than alphanumeric version, so "2.9.10" > "2.9.9" (#277)
xml2 now has a pkgdown site! https://xml2.r-lib.org (@jayhesselberth, #211).
Windows: upgrade to libxml2 2.9.8
print methods now match the type of document, e.g. read_html() prints as
"{html_document}" rather than "{xml_document}" (#227)
Generic xml2 error are now forwarded as R errors. Previously these errors were output to stderr, so could not be suppressed (#209).
Fix for ICU 59+ defaulting to use char16_t, which is only available in C++11 (#231)
No longer uses the C connections API
Better error message when trying to run download_xml() without the curl
package installed (#262)
xml2 classes are now registered for use with S4 by calling setOldClass() (#248)
Nodes with nested data type definition entities now work without crashing (#241)
Test failure fixed due to behavior change with relative paths in libxml2 2.9.9 (#245).
read_xml() now has a better error message when given zero length character
inputs (#212).
read_xml() and read_html() now automatically check if the response
succeeded before trying to read from a HTTP response (#255).
xml_root() can now create root nodes with namespaces (#239)
xml_set_attr() no longer crashes if you try to set the same namespace on
the same node multiple times (#253).
xml_set_attr() now recycles the values if needed (#221)
xml_structure() gains a file argument, to support writing to a file
rather than the console (#244).
as_list() on xml_document objects did not properly include the root node
in the returned list. Previous behavior can be obtained by using
as_list()[[1L]] in place of as_list().download_xml() and download_html() helper functions to make it easy to
download files (#193).
xml_attr() can now set attributes with no value (#198).
xml_serialize() and xml_unserialize() now create file connections when
given character input (#179).
xml_find_first() no longer de-duplicates results, so the results are always
the same length as the inputs (as documented) (#194).
xml2 can now build using libxml2 2.7.0
Use Rcpp symbol registration and visibility to prevent symbol conflicts on Linux
xml_add_child() now requires less resources to insert a node when called
with .where = 0L (@heckendorfc, #175).
Fixed failing examples due to a change in an external resource.
write_xml() and write_html() now accept connections as well as filenames
for output. (#157)
xml_add_child() now takes a .where argument specifying where to add the
new children. (#138)
as_xml() generic function to convert R objects to xml. The most important
method is for lists and enables full roundtrip support for going to and back
from xml for lists and enables full roundtrip support to and from XML. (#137, #143)
xml_new_root() can be used to create a new document and a root node in one step (#131).
xml_add_parent() inserts a new node between the node and its parent (#129)
Add xml_validate() to validate a document against an xml schema (#31, @jeroenooms).
Export xml2_types.h to allow for extension packages such as xslt.
xml_comment() allows you to add comment nodes to a document. (#111)
xml_cdata() allows you to add CDATA nodes to a document. (#128)
Add xml_set_text() and xml_set_name() equivalent to xml_text<- and xml_name<-. (#130).
Add xml_set_attr() and xml_set_attrs() equivalent to xml_attr<- and xml_attrs<-. (#109, #130)
Add write_html() method (#133).
xml_new_document() now explicitly sets the encoding (default UTF-8) (#142)
Document formatting options for write_xml() (#132)
Add missing methods for xml_missing objects. (#134)
Bugfix for xml_length.xml_nodeset that caused it to fail unconditionally. (#140)
is.na() now returns TRUE for xml_missing objects. (#139)
Trim non-breaking spaces in xml_text(trim = TRUE) (#151).
Allow setting non-character attributes (values are coerced to characters). (@sjp, #117, #122).
Fixed return value in call to vapply in xml_integer.xml_nodeset. (@ddiez, #146, #147).
Allow docs missing a root element to be created and printed. (@sjp, #126, #121).
as_list() now preserves element names when attributes exist, and escapes
XML attributes that conflict with special R attributes (@peterfoley, #115).
All C++ functions now use checked_get() instead of get() where possible,
so NULL XPtrs properly throw an error rather than crashing. (@jimhester,
#101, #104).
xml_integer() and xml_double() functions to make it easy to extract
integer and double text from nodes (@jimhester, #97, #99).
xml2 now supports modification and creation of XML nodes. New functions
xml_new_document(), xml_new_child(), xml_new_sibling(),
xml_set_namespace(), , xml_remove(), xml_replace(), xml_root()
and replacement methods for xml_name(), xml_attr(), xml_attrs() and
xml_text() (@jimhester, #9 #76)
xml_ns() now keeps namespace prefixes that point to the same URI
(@jimhester, #35, #95).
read_xml() and read_html() methods added for httr::response() objects.
(@jimhester, #63, #93)
xml_child() function to make selecting children a little easier
(@jimhester, #23, #94)
xml_find_one() has been deprecated in favor of xml_find_first()
(@jimhester, #58, #92)
xml_read() functions now default to passing the document's namespace
object. Namespace definitions can now be removed as well as added and
xml_ns_strip() added to remove all default namespaces from a document.
(@jimhester, #28, #89)
xml_read() gains a options argument to control all available parsing
options, including HUGE to turn off limits for parsing very large
documents and now drops blank text nodes by default, mimicking default
behavior of XML package. (@jimhester, #49, #62, #85, #88)
xml_write() expands the path on filenames, so directories can be specified
with '~/' (@jimhester, #86, #80)
xml_find_one() now returns a 'xml_missing' node object if there are 0
matches (@jimhester, #55, #53, hadley/rvest#82).
xml_find_num(), xml_find_chr(), xml_find_lgl() functions added to
return numeric, character and logical results from XPath expressions. (@jimhester, #55)
xml_name() and xml_text() always correctly encode returned value as
UTF-8 (#54).
Improved configure script - now works again on R-devel on windows.
Compiles with older versions of libxml2.,
Make configure script more cross platform.
Add xml_length() to count the number of children (#32).