<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <head> <title>Reference</title> <link rel="stylesheet" href="../luadoc.css" type="text/css" /> <!--meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/--> </head> <body> <div id="container"> <div id="product"> <div id="product_logo"></div> <div id="product_name"><big><b></b></big></div> <div id="product_description"></div> </div> <!-- id="product" --> <div id="main"> <div id="navigation"> <h1>LuaDoc</h1> <ul> <li><a href="../index.html">Index</a></li> </ul> <!-- Module list --> <h1>Modules</h1> <ul> <li> <a href="../modules/luci.dispatcher.html">luci.dispatcher</a> </li> <li> <a href="../modules/luci.http.html">luci.http</a> </li> <li> <a href="../modules/luci.http.conditionals.html">luci.http.conditionals</a> </li> <li> <a href="../modules/luci.http.date.html">luci.http.date</a> </li> <li> <a href="../modules/luci.http.mime.html">luci.http.mime</a> </li> <li> <a href="../modules/luci.i18n.html">luci.i18n</a> </li> <li> <a href="../modules/luci.ip.html">luci.ip</a> </li> <li> <a href="../modules/luci.ip.cidr.html">luci.ip.cidr</a> </li> <li> <a href="../modules/luci.json.html">luci.json</a> </li> <li> <a href="../modules/luci.jsonc.html">luci.jsonc</a> </li> <li><strong>luci.jsonc.parser</strong></li> <li> <a href="../modules/luci.model.ipkg.html">luci.model.ipkg</a> </li> <li> <a href="../modules/luci.model.uci.html">luci.model.uci</a> </li> <li> <a href="../modules/luci.rpcc.html">luci.rpcc</a> </li> <li> <a href="../modules/luci.rpcc.ruci.html">luci.rpcc.ruci</a> </li> <li> <a href="../modules/luci.sys.html">luci.sys</a> </li> <li> <a href="../modules/luci.sys.init.html">luci.sys.init</a> </li> <li> <a href="../modules/luci.sys.iptparser.html">luci.sys.iptparser</a> </li> <li> <a href="../modules/luci.sys.net.html">luci.sys.net</a> </li> <li> <a href="../modules/luci.sys.process.html">luci.sys.process</a> </li> <li> <a href="../modules/luci.sys.user.html">luci.sys.user</a> </li> <li> <a href="../modules/luci.sys.wifi.html">luci.sys.wifi</a> </li> <li> <a href="../modules/luci.util.html">luci.util</a> </li> <li> <a href="../modules/nixio.html">nixio</a> </li> <li> <a href="../modules/nixio.CHANGELOG.html">nixio.CHANGELOG</a> </li> <li> <a href="../modules/nixio.CryptoHash.html">nixio.CryptoHash</a> </li> <li> <a href="../modules/nixio.File.html">nixio.File</a> </li> <li> <a href="../modules/nixio.README.html">nixio.README</a> </li> <li> <a href="../modules/nixio.Socket.html">nixio.Socket</a> </li> <li> <a href="../modules/nixio.TLSContext.html">nixio.TLSContext</a> </li> <li> <a href="../modules/nixio.TLSSocket.html">nixio.TLSSocket</a> </li> <li> <a href="../modules/nixio.UnifiedIO.html">nixio.UnifiedIO</a> </li> <li> <a href="../modules/nixio.bin.html">nixio.bin</a> </li> <li> <a href="../modules/nixio.bit.html">nixio.bit</a> </li> <li> <a href="../modules/nixio.crypto.html">nixio.crypto</a> </li> <li> <a href="../modules/nixio.fs.html">nixio.fs</a> </li> </ul> <!-- File list --> </div><!-- id="navigation" --> <div id="content"> <h1>Object Instance <code>luci.jsonc.parser</code></h1> <p> LuCI JSON parser instance. A JSON parser instance is useful to parse JSON data chunk by chunk, without the need to assemble all data in advance.</p> <h2>Functions</h2> <table class="function_list"> <tr> <td class="name" nowrap><a href="#parser.parse">parser:parse</a> (json)</td> <td class="summary"> Parses one chunk of JSON data.</td> </tr> <tr> <td class="name" nowrap><a href="#parser.get">parser:get</a> ()</td> <td class="summary"> Convert parsed JSON data into Lua table.</td> </tr> <tr> <td class="name" nowrap><a href="#parser.set">parser:set</a> (data)</td> <td class="summary"> Put Lua data into the parser.</td> </tr> <tr> <td class="name" nowrap><a href="#parser.sink">parser:sink</a> ()</td> <td class="summary"> Generate an ltn12-compatible sink.</td> </tr> <tr> <td class="name" nowrap><a href="#parser.stringify">parser:stringify</a> (pretty)</td> <td class="summary"> Serialize current parser state as JSON.</td> </tr> </table> <br/> <br/> <h2><a name="functions"></a>Functions</h2> <dl class="function"> <dt><a name="parser.parse"></a><strong>parser:parse</strong> (json)</dt> <dd> Parses one chunk of JSON data. <h3>Parameters</h3> <ul> <li> json: String containing the JSON fragment to parse </li> </ul> <h3>Usage:</h3> <pre>parser = luci.jsonc.new() while true do chunk = ... -- fetch a cunk of data, e.g. from a socket finish, errmsg = <b>parser.parse(chunk)</b> if finish == nil then error("Cannot parse JSON: " .. errmsg) end if finish == true then break end end</pre> <h3>Return value:</h3> <ul> <li><code>true</code> if a complete JSON object has been parsed and no further input is expected.</li> <li><code>false</code> if further input is required</li> <li><code>nil</code> if an error was encountered while parsing the current chunk. In this case a string describing the parse error is returned as second value.</li></ul> <h3>See also:</h3> <ul> <li><a href="#parser.get"> parser:get </a> </ul> </dd> <dt><a name="parser.get"></a><strong>parser:get</strong> ()</dt> <dd> Convert parsed JSON data into Lua table. <h3>Usage:</h3> <pre>parser = luci.jsonc.new() parser:parse('{ "example": "test" }') data = parser:get() print(data.example) -- "test"</pre> <h3>Return value:</h3> Parsed JSON object converted into a Lua table or <code>nil</code> if the parser didn't finish or encountered an error. <h3>See also:</h3> <ul> <li><a href="#parser.parse"> parser:parse </a> </ul> </dd> <dt><a name="parser.set"></a><strong>parser:set</strong> (data)</dt> <dd> Put Lua data into the parser. <h3>Parameters</h3> <ul> <li> data: Lua data to put into the parser object. The data is converted to an internal JSON representation that can be dumped with <code>stringify()</code>. The conversion follows the rules described in <code>luci.jsonc.stringify</code>. </li> </ul> <h3>Usage:</h3> <pre>parser = luci.jsonc.new() parser:set({ "some", "data" })</pre> <h3>Return value:</h3> Nothing is returned. <h3>See also:</h3> <ul> <li><a href="#parser.stringify"> parser:stringify </a> </ul> </dd> <dt><a name="parser.sink"></a><strong>parser:sink</strong> ()</dt> <dd> Generate an ltn12-compatible sink. <h3>Usage:</h3> <pre>parser = luci.jsonc.new() ltn12.pump.all(ltn12.source.file(io.input()), parser:sink()) print(parser:get())</pre> <h3>Return value:</h3> Returns a function that can be used as an ltn12 sink. </dd> <dt><a name="parser.stringify"></a><strong>parser:stringify</strong> (pretty)</dt> <dd> Serialize current parser state as JSON. <h3>Parameters</h3> <ul> <li> pretty: A boolean value indicating whether the resulting JSON should be pretty printed. </li> </ul> <h3>Usage:</h3> <pre>parser = luci.jsonc.new() parser:parse('{ "example": "test" }') print(parser:serialize()) -- '{"example":"test"}'</pre> <h3>Return value:</h3> Returns the serialized JSON data of this parser instance. </dd> </dl> </div> <!-- id="content" --> </div> <!-- id="main" --> <div id="about"> <p><a href="http://validator.w3.org/check?uri=referer"><img src="http://www.w3.org/Icons/valid-xhtml10" alt="Valid XHTML 1.0!" height="31" width="88" /></a></p> </div> <!-- id="about" --> </div> <!-- id="container" --> </body> </html>