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util/rsm.lua @ 12591:494577d883ff
util.table: Fix inaccurate comment
Probably a duplicate of the comment next to Lmove, recorded by mistake
Lpack can probably be removed at some point in the near future once we
are confident it is not used anywhere.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 11 Jul 2022 20:02:10 +0200 |
parent | 11428:d91def9fcfdd |
child | 12975:d10957394a3c |
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-- Prosody IM -- Copyright (C) 2008-2017 Matthew Wild -- Copyright (C) 2008-2017 Waqas Hussain -- Copyright (C) 2011-2017 Kim Alvefur -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- -- XEP-0313: Message Archive Management for Prosody -- local stanza = require"util.stanza".stanza; local tonumber = tonumber; local s_format = string.format; local type = type; local pairs = pairs; local function inttostr(n) return s_format("%d", n); end local xmlns_rsm = 'http://jabber.org/protocol/rsm'; local element_parsers = {}; do local parsers = element_parsers; local function xs_int(st) return tonumber((st:get_text())); end local function xs_string(st) return st:get_text(); end parsers.after = xs_string; parsers.before = function(st) local text = st:get_text(); return text == "" or text; end; parsers.max = xs_int; parsers.index = xs_int; parsers.first = function(st) return { index = tonumber(st.attr.index); st:get_text() }; end; parsers.last = xs_string; parsers.count = xs_int; end local element_generators = setmetatable({ first = function(st, data) if type(data) == "table" then st:tag("first", { index = inttostr(data.index) }):text(data[1]):up(); else st:text_tag("first", data); end end; before = function(st, data) if data == true then st:tag("before"):up(); else st:text_tag("before", data); end end; max = function (st, data) st:text_tag("max", inttostr(data)); end; index = function (st, data) st:text_tag("index", inttostr(data)); end; count = function (st, data) st:text_tag("count", inttostr(data)); end; }, { __index = function(_, name) return function(st, data) st:text_tag(name, data); end end; }); local function parse(set) local rs = {}; for tag in set:childtags() do local name = tag.name; local parser = name and element_parsers[name]; if parser then rs[name] = parser(tag); end end return rs; end local function generate(t) local st = stanza("set", { xmlns = xmlns_rsm }); for k,v in pairs(t) do if element_parsers[k] then element_generators[k](st, v); end end return st; end local function get(st) local set = st:get_child("set", xmlns_rsm); if set and #set.tags > 0 then return parse(set); end end return { parse = parse, generate = generate, get = get };