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  • Committer: Robert Collins
  • Date: 2007-07-13 07:22:42 UTC
  • mto: (2592.5.3 pack-repository)
  • mto: This revision was merged to the branch mainline in revision 2624.
  • Revision ID: robertc@robertcollins.net-20070713072242-vgf4mkayfyjk6zy0
Node references are tab separated.

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bzrlib/index.py
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    NODE           := KEY NULL ABSENT? NULL REFERENCES NULL VALUE NEWLINE
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    KEY            := Not-whitespace-utf8
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    ABSENT         := 'a'
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    REFERENCES     := (REFERENCE_LIST TAB) {node_ref_lists}
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    REFERENCE_LIST := (KEY (CR KEY)*)?
 
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    REFERENCES     := REFERENCE_LIST (TAB REFERENCE_LIST){node_ref_lists - 1}
 
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    REFERENCE_LIST := (REFERENCE (CR REFERENCE)*)?
 
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    REFERENCE      := DIGITS  ; digits is the byte offset in the index of the
 
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                              ; referenced key.
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    VALUE          := no-newline-no-null-bytes
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    """
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        lines = [_SIGNATURE]
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        lines.append(_OPTION_NODE_REFS + str(self.reference_lists) + '\n')
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        for key, (references, value) in sorted(self._nodes.items(),reverse=True):
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            flattened_references = ''
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            lines.append("%s\0\0%s\0%s\n" % (key, flattened_references, value))
 
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            flattened_references = []
 
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            for ref_list in references:
 
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                flattened_references.append('')
 
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            lines.append("%s\0\0%s\0%s\n" % (key,
 
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                '\t'.join(flattened_references), value))
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        lines.append('\n')
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        return StringIO(''.join(lines))
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