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* native UTF-8 strings
* names whose PDF and canonical syntax differ in both dictionary key
positions and other positions
For json, names are converted both as names and directly when used as
dictionary keys.
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* Replace --create-from-json=file with --json-input, which causes the
regular input to be treated as json.
* Eliminate --to-json
* In --json=2, bring back "objects" and eliminate "objectinfo". Stream
data is never present.
* In --json-output=2, write "qpdf-v2" with "objects" and include
stream data.
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There are no automated tests yet, but committing work so far in
preparation for some refactoring.
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These mean to leave the original values alone. This is needed for
reconstructing streams from JSON given that the stream data and stream
dictionary may appear in any order in the JSON.
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I decided these were confusing and inconsistent with how JSON works.
They muddle the API rather than improving it.
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Also add stubs for top-level QPDF methods (createFromJSON,
updateFromJSON)
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The last offset is irrelevant to not being able to find /Root.
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When an empty string was passed to replaceStreamData, the code was
passing a null pointer to memcpy. Since a 0 size was also passed, this
was harmless, but it triggers sanitizer errors. The code properly
handles a null pointer as the buffer in other places.
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This makes it a lot easier to run parts of the test suite.
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This is taken from an unrelased change to qtest.
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Call the parent container's item method before calling the child
item's start method so we can easily know the current nesting level
when nested items are added.
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There is one unexpected pass in this commit. This script was applied
to the files changed in this commit:
----------
#!/usr/bin/env python3
import json
import sys
def json_dumps(data):
return json.dumps(data, ensure_ascii=False,
indent=2, separators=(',', ': '))
for filename in sys.argv[1:]:
with open(filename, 'r') as f:
data = json.loads(f.read())
data['version'] = 2
objectinfo = {}
if 'objectinfo' in data:
objectinfo = data['objectinfo']
del data['objectinfo']
if 'objects' not in data:
continue
qpdf = {'jsonversion': 2, 'pdfversion': '1.3', 'objects': {}}
for k, v in data['objects'].items():
is_stream = objectinfo.get(k, {}).get('stream', {}).get('is', False)
if k.endswith(' R'):
k = 'obj:' + k
if is_stream:
v = {'stream': {'dict': v}}
else:
v = {'value': v}
qpdf['objects'][k] = v
data['qpdf'] = qpdf
del data['objects']
print(json_dumps(data))
----------
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moddify -> modify. Also carefully spell checked all remaining keys by
splitting them into words and running a spell checker, not just
relying on visual proofreading. That was the only one.
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Not fully exercised in this commit
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Also refine the herustic for deciding whether to use hexadecimal
notation for a string.
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Update getJSON() methods and calls to them
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This script was used on test data:
----------
#!/usr/bin/env python3
import json
import sys
import re
def json_dumps(data):
return json.dumps(data, ensure_ascii=False,
indent=2, separators=(',', ': '))
for filename in sys.argv[1:]:
with open(filename, 'r') as f:
data = json.loads(f.read())
if 'objectinfo' not in data:
continue
trailer = None
to_sort = []
for k, v in data['objectinfo'].items():
if k == 'trailer':
trailer = v
else:
m = re.match(r'^(\d+) \d+ R', k)
if m:
to_sort.append([int(m.group(1)), k, v])
newobjectinfo = {x[1]: x[2] for x in sorted(to_sort)}
if trailer is not None:
newobjectinfo['trailer'] = trailer
data['objectinfo'] = newobjectinfo
print(json_dumps(data))
----------
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The following script was used to adjust test data:
----------
#!/usr/bin/env python3
import json
import sys
import re
def json_dumps(data):
return json.dumps(data, ensure_ascii=False,
indent=2, separators=(',', ': '))
for filename in sys.argv[1:]:
with open(filename, 'r') as f:
data = json.loads(f.read())
if 'objects' not in data:
continue
trailer = None
to_sort = []
for k, v in data['objects'].items():
if k == 'trailer':
trailer = v
else:
m = re.match(r'^(\d+) \d+ R', k)
if m:
to_sort.append([int(m.group(1)), k, v])
newobjects = {x[1]: x[2] for x in sorted(to_sort)}
if trailer is not None:
newobjects['trailer'] = trailer
data['objects'] = newobjects
print(json_dumps(data))
----------
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