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Add QPDFObjectHandle::wrapInArray()

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Wrap an object in an array if it is not already an array.
This commit is contained in:
Jay Berkenbilt 2018-12-17 17:36:06 -05:00
parent 9caf005d89
commit 077d3d4512
3 changed files with 26 additions and 0 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2018-12-18 Jay Berkenbilt <ejb@ql.org>
* New method QPDFObjectHandle::wrapInArray returns the object
itself if it is an array. Otherwise, it returns an array
containing the object. This is useful for dealing with PDF data
that is sometimes expressed as a single element and sometimes
expressed as an array, which is a somewhat common PDF idiom.
2018-10-11 Jay Berkenbilt <ejb@ql.org>
* Files generated by autogen.sh are now committed so that it is

6
include/qpdf/QPDFObjectHandle.hh
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@ -255,6 +255,12 @@ class QPDFObjectHandle
// Public factory methods
// Wrap an object in an array if it is not already an array. This
// is a helper for cases in which something in a PDF may either be
// a single item or an array of items, which is a common idiom.
QPDF_DLL
QPDFObjectHandle wrapInArray();
// Construct an object of any type from a string representation of
// the object. Throws QPDFExc with an empty filename and an
// offset into the string if there is an error. Any indirect

12
libqpdf/QPDFObjectHandle.cc
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@ -1235,6 +1235,18 @@ QPDFObjectHandle::unparseBinary()
}
}
QPDFObjectHandle
QPDFObjectHandle::wrapInArray()
{
if (isArray())
{
return *this;
}
QPDFObjectHandle result = QPDFObjectHandle::newArray();
result.appendItem(*this);
return result;
}
QPDFObjectHandle
QPDFObjectHandle::parse(std::string const& object_str,
std::string const& object_description)