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util/xml.lua @ 10996:d742095046f9
net.cqueues: Switch to server.watchfd for main loop integration
Why? Just look at all that code deleted!
watchfd is the prefered way to poll things that expose FDs for this
purpose, altho it was added after net.cqueues.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Wed, 08 Jul 2020 20:11:49 +0200 (2020-07-08) |
parent | 8555:4f0f5b49bb03 |
child | 11127:1d9cd1abc660 |
child | 12181:783056b4e448 |
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local st = require "util.stanza"; local lxp = require "lxp"; local t_insert = table.insert; local t_remove = table.remove; local _ENV = nil; -- luacheck: std none local parse_xml = (function() local ns_prefixes = { ["http://www.w3.org/XML/1998/namespace"] = "xml"; }; local ns_separator = "\1"; local ns_pattern = "^([^"..ns_separator.."]*)"..ns_separator.."?(.*)$"; return function(xml) --luacheck: ignore 212/self local handler = {}; local stanza = st.stanza("root"); local namespaces = {}; local prefixes = {}; function handler:StartNamespaceDecl(prefix, url) if prefix ~= nil then t_insert(namespaces, url); t_insert(prefixes, prefix); end end function handler:EndNamespaceDecl(prefix) if prefix ~= nil then -- we depend on each StartNamespaceDecl having a paired EndNamespaceDecl t_remove(namespaces); t_remove(prefixes); end end function handler:StartElement(tagname, attr) local curr_ns,name = tagname:match(ns_pattern); if name == "" then curr_ns, name = "", curr_ns; end if curr_ns ~= "" then attr.xmlns = curr_ns; end for i=1,#attr do local k = attr[i]; attr[i] = nil; local ns, nm = k:match(ns_pattern); if nm ~= "" then ns = ns_prefixes[ns]; if ns then attr[ns..":"..nm] = attr[k]; attr[k] = nil; end end end local n = {} for i=1,#namespaces do n[prefixes[i]] = namespaces[i]; end stanza:tag(name, attr, n); end function handler:CharacterData(data) stanza:text(data); end function handler:EndElement() stanza:up(); end local parser = lxp.new(handler, "\1"); local ok, err, line, col = parser:parse(xml); if ok then ok, err, line, col = parser:parse(); end --parser:close(); if ok then return stanza.tags[1]; else return ok, err.." (line "..line..", col "..col..")"; end end; end)(); return { parse = parse_xml; };