I have the url parmeters http://www.nositeinparticular.coom/product1?test=brand&old=Superman&new=Batman.
I was wanting to know the proper way to use javascript to do the following;
Look to see if test=brand
If it does replace all the values of old with the value of new, ie replacing the word Superman with Batman.
I have this so far to see if test equals brand:
$(document).ready(function() {
var url = location.pathname;
if (url.indexOf("test=brand")) {
}
How would I go about parsing the values from the url and running the replacment?
Related
I'm trying to parse a HTML to retrieve the value of tag, on my Google Apps Script code. contains line breaks in attributes, and appears more than once but I only want the first value. (In this case, only 'foo' is required.)
<b class="
"
>
foo
</b><b class="
"
>
var
</b>
On Google Apps Script, functions such as 'getElementByTagName' is not available. So I first though of using regexp but it's not the wise option here.
Does anyone have an idea on how I can move forward? Any comment/guess would be highly appreciated!
How about using XmlService for your situation as a workaround? At XmlService, even if there are several line breaks in the tags, the value can be retrieved. I think that there are several workarounds for your situation. So please think of this as one of them.
The flow of sample script is as follows.
Flow :
Add the header of xml and a root element tag to the html.
Parse the creates xml value using XmlService.
Retrieve the first value of tags using XmlService.
Sample script :
var html = '<b class="\n"\n>\nfoo\n</b><b class="\n"\n>\nvar\n</b>\n'; // Your sample value
var xml = '<?xml version="1.0"?><sampleContents>' + html + '</sampleContents>';
var res = XmlService.parse(xml).getRootElement().getChildren()[0].getText().trim();
Logger.log(res) // foo
Note :
In this sample script, your sample html was used. So if you use more complicated one, can you provide it? I would like to modify the script.
Reference :
XML Service
If this was not what you want, please tell me. I would like to modify it.
Edit 1 :
Unfortunately, for the value retrieved from the URL, above script cannot be used. So I used "Parser" which is a GAS library for your situation. The sample script is as follows.
Sample script :
var url = "https://www.booking.com/searchresults.ja.html?ss=kyoto&checkin_year=2018&checkin_month=10&checkin_monthday=1&checkout_year=2018&checkout_month=10&checkout_monthday=2&no_rooms=1&group_adults=1&group_children=0";
var html = UrlFetchApp.fetch(url).getContentText();
var res = Parser.data(html).from("<b class=\"\n\"\n>").to("</b>").build().trim();
Logger.log(res) // US$11
Note :
Before you run this script, please install "Parser". About the install of library, you can see it at here.
The project key of the library is M1lugvAXKKtUxn_vdAG9JZleS6DrsjUUV
References :
Parser
Managing libraries
google app script Exceeded memory limit
google script scrape parser with 2 classes with the same name
Edit 2 :
For your 2nd URL in your comment, it seems that the URL is different from your 1st one. And also your new URL has no tag of <b class=\"\n\"\n>. By this, the value you want cannot be retrieved. But from the 1st URL in your comment, I presumed about the value what you want. Please confirm the following script?
var url = "https://www.booking.com/searchresults.ja.html?ss=kyotogranvia&checkin_year=2018&checkin_month=10&checkin_monthday=1&checkout_year=2018&checkout_month=10&checkout_monthday=2&no_rooms=1&group_adults=1&group_children=0";
var html = UrlFetchApp.fetch(url).getContentText();
var res = Parser.data(html).from("<span class=\"lp-postcard-avg-price-value\">").to("</span>").build().trim();
Logger.log(res) // US$289
I am currently trying to figure out, how to modify the parameter being integrated into the URL Mapping I am using.
static mappings =
{
"/$controller/$action?/$id?/(.$format)?"
{
constraints {
// apply constraints here
}
}
name test1: "/.../$title/..."{
controller = "study"
action = "st_show"
}
name test2: "/.../$title/..."{
controller = "search"
action = "se_show"
}
The parameter $title is pretty much a dataset, which is pulled from a database and which will get transmitted in the following format [ this is a title ]. So there are square brackets in front and behind the string and words are seperated through blanks.
If I am creating a link through g:link now with the params nested in, it gets put into the url as it is pulled from the database. What I am attempting is to create SEO-URLs, which will present a certain title of a publication devided by hyphens instead of url-encoded "%20".
Until now, I was able to generate dynamic urls looking like this:
http://localhost:8080/projectname/show/%5BAllgemeine%20Bevölkerungs[...]/782/...PARAMS...
Furthermore I already implemented it through JQuery, though it should be static and users should be able to copy the link to open up the page themselves - that wouldn't be possible when changing the url client-side while loading up the page.
Is there a way to define a function with something like replaceAll.(' ', '-'), which can be invoked onto the parameter in the mapping to replace blanks with hyphens and f.e. square brackets with an empty character?
That's pretty much, what I wasn't able to come by through the documentation.
Thank you already in advance for your help!
I managed to solve my problem by creating a service with a function containing a regex and executing this function onto the parameter title in my g:link, which I firstly converted to a string, which gets passed to the function.
<g:link controller="study" action="st_show" params="[data: data, ... title: ConversionService.convert(fieldValue(bean: path).toString(), ... data: data)]"></g:link>
And the function in the ConversionService
public static String convert(String title){
title = title.replaceAll("\\s", "-").replaceAll("[^0-9a-zA-Z\\-]", "");
return title;
}
I am working from this example: http://jqueryui.com/demos/autocomplete/#remote and I am encoding the output like this:
$rows = array();
while($r = mysql_fetch_assoc($category_result))
{
$rows[] = $r;
error_log ("rows: ".$rows[0]);
}
echo json_encode($rows);
But the dropdown on the other side shows nothing. Here is my test page: http://problemio.com/test.php - if you enter "ho" it matches 2 results in the database, but they are not getting displayed for some reason. Any idea why?
Thanks!!
The properties should be named label and value. From the JQuery UI demo page you linked to:
The local data can be a simple Array of Strings, or it contains
Objects for each item in the array, with either a label or value
property or both. The label property is displayed in the suggestion
menu.
So you would need to rename category_name to label either in PHP or later on in your JavaScript source handler function. The latter would require you to replace the PHP URL with a callback function like in the remote example. That way you could get the data any way you want (e.g. by jQuery.getJSON()) and work with it before it gets handed over to the suggestion box.
Hope this helps.
Regarding your comment, this should do it:
$rows = array();
while ($r = mysql_fetch_array($category_result)) {
$rows[] = array("label" => $r["category_name"]);
}
echo json_encode($rows);
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How can i select the fragment after the '#' symbol in my URL using PHP?
The result that i want is "photo45".
This is an example URL:
http://example.com/site/gallery/1#photo45
If you want to get the value after the hash mark or anchor as shown in a user's browser: This isn't possible with "standard" HTTP as this value is never sent to the server (hence it won't be available in $_SERVER["REQUEST_URI"] or similar predefined variables). You would need some sort of JavaScript magic on the client side, e.g. to include this value as a POST parameter.
If it's only about parsing a known URL from whatever source, the answer by mck89 is perfectly fine though.
That part is called "fragment" and you can get it in this way:
$url=parse_url("http://example.com/site/gallery/1#photo45 ");
echo $url["fragment"]; //This variable contains the fragment
A) already have url with #hash in PHP? Easy! Just parse it out !
if( strpos( $url, "#" ) === false ) echo "NO HASH !";
else echo "HASH IS: #".explode( "#", $url )[1]; // arrays are indexed from 0
Or in "old" PHP you must pre-store the exploded to access the array:
$exploded_url = explode( "#", $url ); $exploded_url[1];
B) You want to get a #hash by sending a form to PHP? => Use some JavaScript MAGIC! (To pre-process the form)
var forms = document.getElementsByTagName('form'); //get all forms on the site
for (var i = 0; i < forms.length; i++) { //to each form...
forms[i].addEventListener( // add a "listener"
'submit', // for an on-submit "event"
function () { //add a submit pre-processing function:
var input_name = "fragment"; // name form will use to send the fragment
// Try search whether we already done this or not
// in current form, find every <input ... name="fragment" ...>
var hiddens = form.querySelectorAll('[name="' + input_name + '"]');
if (hiddens.length < 1) { // if not there yet
//create an extra input element
var hidden = document.createElement("input");
//set it to hidden so it doesn't break view
hidden.setAttribute('type', 'hidden');
//set a name to get by it in PHP
hidden.setAttribute('name', input_name);
this.appendChild(hidden); //append it to the current form
} else {
var hidden = hiddens[0]; // use an existing one if already there
}
//set a value of #HASH - EVERY TIME, so we get the MOST RECENT #hash :)
hidden.setAttribute('value', window.location.hash);
}
);
}
Depending on your form's method attribute you get this hash in PHP by:
$_GET['fragment'] or $_POST['fragment']
Possible returns: 1. ""[empty string] (no hash) 2. whole hash INCLUDING the #[hash] sign (because we've used the window.location.hash in JavaScript which just works that way :) )
C) You want to get the #hash in PHP JUST from requested URL?
YOU CAN'T !
...(not while considering regular HTTP requests)...
...Hope this helped :)
I've been searching for a workaround for this for a bit - and the only thing I have found is to use URL rewrites to read the "anchor". I found in the apache docs here http://httpd.apache.org/docs/2.2/rewrite/advanced.html the following...
By default, redirecting to an HTML anchor doesn't work, because mod_rewrite escapes the # character, turning it into %23.
This, in turn, breaks the redirection.
Solution: Use the [NE] flag on the RewriteRule. NE stands for No
Escape.
Discussion: This technique will of course also work with other special
characters that mod_rewrite, by default, URL-encodes.
It may have other caveats and what not ... but I think that at least doing something with the # on the server is possible.
You can't get the text after the hash mark. It is not sent to the server in a request.
I found this trick if you insist want the value with PHP.
split the anchor (#) value and get it with JavaScript, then store as cookie, after that get the cookie value with PHP
If you are wanting to dynamically grab the hash from URL, this should work:
https://stackoverflow.com/a/57368072/2062851
<script>
var hash = window.location.hash, //get the hash from url
cleanhash = hash.replace("#", ""); //remove the #
//alert(cleanhash);
</script>
<?php
$hash = "<script>document.writeln(cleanhash);</script>";
echo $hash;
?>
You can do it by a combination of javascript and php:
<div id="cont"></div>
And by the other side;
<script>
var h = window.location.hash;
var h1 = (win.substr(1));//string with no #
var q1 = '<input type="text" id="hash" name="hash" value="'+h1+'">';
setInterval(function(){
if(win1!="")
{
document.querySelector('#cont').innerHTML = q1;
} else alert("Something went wrong")
},1000);
</script>
Then, on form submit you can retrieve the value via $_POST['hash'] (set the form)
You need to parse the url first, so it goes like this:
$url = "https://www.example.com/profile#picture";
$fragment = parse_url($url,PHP_URL_FRAGMENT); //this variable holds the value - 'picture'
If you need to parse the actual url of the current browser, you need to request to call the server.
$url = $_SERVER["REQUEST_URI"];
$fragment = parse_url($url,PHP_URL_FRAGMENT); //this variable holds the value - 'picture'
Getting the data after the hashmark in a query string is simple. Here is an example used for when a client accesses a glossary of terms from a book. It takes the name anchor delivered (#tesla), and delivers the client to that term and highlights the term and its description in blue so its easy to see.
setup your strings with a div id, so the name anchor goes where its supposed to and the JavaScript can change the text colors
<div id="tesla">Tesla</div>
<div id="tesla1">An energy company</div>
Use JavaScript to do the heavy work, on the server side, inserted in your PHP page, or wherever..
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
I am launching the Java function automatically when the page is loaded.
<script>
$( document ).ready(function() {
get the anchor (#tesla) from the URL received by the server
var myhash1 = $(location).attr('hash'); //myhash1 == #tesla
trim the hash sign off of it
myhash1 = myhash1.substr(1) //myhash1 == tesla
I need to highlight the term and the description so I create a new var
var myhash2 = '1';
myhash2 = myhash1.concat(myhash2); //myhash2 == tesla1
Now I can manipulate the text color for the term and description
var elem = document.getElementById(myhash1);
elem.style.color = 'blue';
elem = document.getElementById(myhash2);
elem.style.color = 'blue';
});
</script>
This works. client clicks link on client side (example.com#tesla) and goes right to the term. the term and the description are highlighted in blue by JavaScript for quick reading .. all other entries left in black..
I want to parse a random website, modify the content so that every word is a link (for a dictionary tooltip) and then display the website in an iframe.
I'm not looking for a complete solution, but for a hint or a possible strategy. The linking is my problem, parsing the website and displaying it in an iframe is quite simple. So basically I have a String with all the html content. I'm not even sure if it's better to do it serverside or after the page is loaded with JS.
I'm working with Ruby on Rails, jQuery, jRails.
Note: The content of the href tag depends on the word.
Clarification:
I tried a regexp and it already kind of works:
#site.gsub!(/[A-Za-z]+(?:['-][A-Za-z]+)?|\\d+(?:[,.]\\d+)?/) {|word| '' + word + ''}
But the problem is to only replace words in the text and leave the HTML as it is. So I guess it is a regex problem...
Thanks for any ideas.
I don't think a regexp is going to work for this - or, at least, it will always be brittle. A better way is to parse the page using Hpricot or Nokogiri, then go through it and modify the nodes that are plain text.
It sounds like you have it mostly planned out already.
Split the content into words and then for each word, create a link, such as whatever
EDIT (based on your comment):
Ahh ... I recommend you search around for screen scraping techniques. Most of them should start with removing anything between < and > characters, and replacing <br> and <p> with newlines.
I would use Nokogiri to remove the HTML structure before you use the regex.
no_html = Nokogiri::HTML(html_as_string).text
Simple. Hash the HTML, run your regex, then unhash the HTML.
<?php
class ht
{
static $hashes = array();
# hashes everything that matches $pattern and saves matches for later unhashing
function hash($text, $pattern) {
return preg_replace_callback($pattern, array(self,'push'), $text);
}
# hashes all html tags and saves them
function hash_html($html) {
return self::hash($html, '`<[^>]+>`');
}
# hashes and saves $value, returns key
function push($value) {
if(is_array($value)) $value = $value[0];
static $i = 0;
$key = "\x05".++$i."\x06";
self::$hashes[$key] = $value;
return $key;
}
# unhashes all saved values found in $text
function unhash($text) {
return str_replace(array_keys(self::$hashes), self::$hashes, $text);
}
function get($key) {
return self::$hashes[$key];
}
function clear() {
self::$hashes = array();
}
}
?>
Example usage:
ht::hash_html($your_html);
// your word->href converter here
ht::unhash($your_formatted_html);
Oh... right, I wrote this in PHP. Guess you'll have to convert it to ruby or js, but the idea is the same.