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doc/stanza.txt @ 13134:638f627e707f
util.datamanager: Add O(1) list indexing with on-disk index
Index file contains offsets and lengths of each item() which allows
seeking directly to each item and reading it without parsing the entire
file.
Also allows tricks like binary search, assuming items have some defined
order.
We take advantage of the 1-based indexing in tables to store a magic
header in the 0 position, so that table index 1 ends up at file index 1.
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 11 May 2021 02:09:56 +0200 |
parent | 55:4edb942e9dff |
rev | line source |
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55
4edb942e9dff
Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
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changeset
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1 |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
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2 Structure of a stanza: |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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3 |
4edb942e9dff
Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
4 |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
5 stanza { |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
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changeset
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6 --- properties --- |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
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7 tags -- array of tags |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
8 |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
9 --- static methods --- |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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10 iq(attrs) -- |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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11 |
4edb942e9dff
Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
12 --- read-only methods --- |
4edb942e9dff
Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
13 reply -- return new stanza with attributes of current stanza |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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14 child_with_name(string name) -- return the first child of the current tag with the matching name |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
|
15 |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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16 --- write methods --- |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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17 tag(name, sttrs) -- create a new child of the current tag, and set the child as current |
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Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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18 up() -- move to the parent of the current tag |
4edb942e9dff
Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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19 text(string) -- append a new text node to the current tag |
4edb942e9dff
Some notes of the stanza and session structures
Waqas Hussain <waqas20@gmail.com>
parents:
diff
changeset
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20 } |