What I'm trying to do: I'm trying to parse Google Calendar events and create a Google Document if the following string is found in the title or description of the event "#notes".
What actually happens: A document is created as soon as the string "notes" is found. It doesn't require an hashtag. The same thing happens with #.
function createMeetingNotesNextTimePeriod() {
//<-------------------------------------VARIABLES
// get today's date
var today = new Date();
// number of hours from now to check for meetings
var hours = 2
// create variable for now
var now = new Date();
// create variable for number of hours from now in milliseconds
var period_from_now = new Date(now.getTime() + (hours * 60 * 60 * 1000));
// retrieve all calendar events for time period with #notes string
var tagword = ('#notes');
var events = CalendarApp.getDefaultCalendar().getEvents(now, period_from_now, {search: tagword}) ;
Logger.log('Number of events: ' + events.length);
} // functionCreateMeetingNotesNextTimePeriod
The log commands tells me that it found one event but the event in question just has 'notes' in it's title, no hashtag. Thanks for all help.
EDIT
I think I found the problem but I'm still stumped about solving it. It seems that the search option from .getEvents ignores most special characters and returns a positive whenever you search for a special character. For example, I replaced my original search for tagword with this:
var events = CalendarApp.getDefaultCalendar().getEvents(now, period_from_now, {search: 'notes' + '#' +'#' + '±' }) ;
It gives me a positive match on my search while I don't have either a '#', a '#' nor a '±' in my event.
That does seem odd that it ignores special characters however here is a work around that should work:
var tagword = '#notes';
var events = CalendarApp.getDefaultCalendar().getEvents(now, period_from_now, {search : tagword})
if (events.length > 0) {
for (i in events) {
if ( events[i].getTitle().indexOf(tagword) >-1 || events[i].getDescription().indexOf(tagword) >-1) {
//do something
}
}
}
Basically it will find all events that have notes (ignoring the special characters) then loop through the event titles and descriptions to check if the tag word is present (including special characters).
You will need to use some Regex to do what you are trying to do in Javascript.
I am not exactly sure how to do it for your particular case but here are two references that can help you out.
JS Extract HashTags From Text
JS Regex Searching for HashTags
I hope this helps !
EDIT
try
var tagword = ('/#/g' + notes);
OR
var tagword = ('/#notes/g');
I tried it out and it seems to have worked.
Related
I am new in programing and right now I am working on one program. Program need to find the substring in a string and return the index where the chain starts to be the same. I know that for that I can use "indexOf". Is not so easy. I want to find out substrings with at moste one different char.
I was thinking about regular expresion... but not really know how to use it because I need to use regular expresion for every element of the string. Here some code wich propably will clarify what I want to do:
var A= "abbab";
var B= "ba";
var tb=[];
console.log(A.indexOf(B));
for (var i=0;i<B.length; i++){
var D=B.replace(B[i],"[a-z]");
tb.push(A.indexOf(D));
}
console.log(tb);
I know that the substring B and string A are the lowercase letters. Will be nice to get any advice how to make it using regular expresions. Thx
Simple Input:
A B
1) abbab ba
2) hello world
3) banana nan
Expected Output:
1) 1 2
2) No Match!
3) 0 2
While probably theoretically possible, I think it would very complicated to try this kind of search while attempting to incorporate all possible search query options in one long complex regular expression. I think a better approach is to use JavaScript to dynamically create various simpler options and then search with each separately.
The following code sequentially replaces each character in the initial query string with a regular expression wild card (i.e. a period, '.') and then searches the target string with that. For example, if the initial query string is 'nan', it will search with '.an', 'n.n' and 'na.'. It will only add the position of the hit to the list of hits if that position has not already been hit on a previous search. i.e. It ensures that the list of hits contains only unique values, even if multiple query variations found a hit at the same location. (This could be implemented even better with ES6 sets, but I couldn't get the Stack Overflow code snippet tool to cooperate with me while trying to use a set, even with the Babel option checked.) Finally, it sorts the hits in ascending order.
Update: The search algorithm has been updated/corrected. Originally, some hits were missed because the exec search for any query variation would only iterate as per the JavaScript default, i.e. after finding a match, it would start the next search at the next character after the end of the previous match, e.g. it would find 'aa' in 'aaaa' at positions 0 and 2. Now it starts the next search at the next character after the start of the previous match, e.g. it now finds 'aa' in 'aaaa' at positions 0, 1 and 2.
const findAllowingOneMismatch = (target, query) => {
const numLetters = query.length;
const queryVariations = [];
for (let variationNum = 0; variationNum < numLetters; variationNum += 1) {
queryVariations.push(query.slice(0, variationNum) + "." + query.slice(variationNum + 1));
};
let hits = [];
queryVariations.forEach(queryVariation => {
const re = new RegExp(queryVariation, "g");
let myArray;
while ((searchResult = re.exec(target)) !== null) {
re.lastIndex = searchResult.index + 1;
const hit = searchResult.index;
// console.log('found a hit with ' + queryVariation + ' at position ' + hit);
if (hits.indexOf(hit) === -1) {
hits.push(searchResult.index);
}
}
});
hits = hits.sort((a,b)=>(a-b));
console.log('Found "' + query + '" in "' + target + '" at positions:', JSON.stringify(hits));
};
[
['abbab', 'ba'],
['hello', 'world'],
['banana', 'nan'],
['abcde abcxe abxxe xbcde', 'abcd'],
['--xx-xxx--x----x-x-xxx--x--x-x-xx-', '----']
].forEach(pair => {findAllowingOneMismatch(pair[0], pair[1])});
I have a script I have been using in my test environment to programmically create a tracking number by parsing the year from timestamp and padding the response index.
function setTrackingNumber(ss, lastRowInx, createDateColumn) //This block generates and stores a tracking number in Column AU on the backend
{
var padTrackNo = "" + lastRowInx;
var trackSize = 4;
var trackingNumberColumn = createDateColumn-3; //trackingNumberColumn is currently in AU (Column 47) Calculating using it's relative position to createDateColumn Position
if (ss.getRange(lastRowInx, trackingNumberColumn).getValue() == "") // so that subsequent edits to Google Form don't overwrite original tracking number
{
if (padTrackNo > trackSize)
{
var padTrackNo = pad(padTrackNo, trackSize);
}
else {} //do nothing
var shortYear = setShortYear(ss, lastRowInx, createDateColumn);
var trackingNumber = shortYear + "-" + padTrackNo;
var createTrackingNumber = ss.getRange(lastRowInx, trackingNumberColumn);
createTrackingNumber.setValue(trackingNumber);
}
else {} //should do nothing
return;
}//This is the end of the setTrackingNumber function
function setShortYear(ss, lastRowInx, createDateColumn)
{
var newCreateDate = ss.getRange(lastRowInx,createDateColumn).getValue();
var strDate = "" + newCreateDate;
var splitDate = strDate.split(" ");
var trimYear = splitDate[3];
var shortYear = trimYear;
return shortYear;
}//This is the end of the shortYear function
function pad(padTrackNo, trackSize)
{
while (padTrackNo.length < trackSize)
{
padTrackNo = "0"+padTrackNo;
}
return padTrackNo;
}//This is the end of pad function
That gets me test result which is as expected ex. 2016-0005. However when we added it to another production sheet it seemed to work with test data and then production data showed up like a date 3/1/2016. production result - first cell.
I thought it must just be formatting the string as a date because of the numbers so I tried formatted the column as plain text but that just changed the date to a plain text version of the date.
I thought this might be similar to needing to specify the format like I did in this question Appending initial timestamp from Google Form to end of record in order to permanently store create date onFormSubmit at #SandyGood 's suggestion so I tried setting the number format as [0000-0000] by changing
createTrackingNumber.setValue(trackingNumber);
to
createTrackingNumber.setValue(trackingNumber).setNumberFormat("0000-0000");
which resulted in the [production result - second cell] which again doesn't match the expected result.
Oddly, some submissions seem to work just fine like [production result - third cell]. Over the past 3 days and approximately 10 records it has been fine, then hinky, then fine, they hinky, then fine again. I am not really sure what else to try to debug this odd behaviour.
Note: I had to parse the date as a string as I was having trouble getting it to parse the date correctly from the create date which is taken from initial timestamp.
To my understanding, "2016-0005" is not a number but a string, so the cell containing it should be formatted as plain text. With a script, this can be done by
range.setNumberFormat('#STRING#')
(source), and this must be done before you set the value to the cell. Like this:
createTrackingNumber.setNumberFormat('#STRING#').setValue(trackingNumber);
I have an input field that allows a user to enter a date.
I need this date to be in the following format: 10Jan13 (capitalization is not important)
There is a popup calender that if used will format the date correctly for the user.
I'd like to check the value of the input onblur using Javascript to be sure that the user did not either paste or type the date improperly.
I am currently checking number-only fields like this:
var numbers = /^[0-9]+$/;
if (!BIDInput.value.match(numbers))
{
checkedInput.value = "";
alert('Not a number');
}
and I'm checking letters-only fields like this:
var letters = /^[a-z]+$/
if (!nameInput.value.match(letters))
{
nameInput.value = "";
alert('Not a letter');
}
I would like to check the date format in a similar a fashion if possible. But anything that accomplishes the task will do. Can anyone point me in the right direction on how to get this done?
I know that client side validation does not replace server side validation. This is for user experience purposes only.
You're pretty much there with what you have. Basically your format is one or two digits, then one of 12 possible strings, followed by two digits. So for instance:
var shortDateRex = /^\d{1,2}(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\d{2}$/;
Breakdown:
^ Start of string.
\d{1,2} One or two digits.
(:?...) A non-capturing group. Or you could use a capture group if you like.
Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec An alternation, allowing any of those twelve choices. Naturally you can add more if you like. If you have two choices that start the same way (Jan and January, for instance), put the longer one earlier in the alternation.
\d{2} Two digits.
Side note: I'd have to recommend against two-digit dates on principle, and particularly given where in the century we currently are!
Responding to Amberlamps' comment that this doesn't validate the date: Once you've validated the format, it's trivial to then check the date itself if you like (to rule out 30Feb13, for instance):
var validateDateString = (function() {
var monthNames = "Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec".toLowerCase().split("|");
var dateValidateRex = /^(\d{1,2})(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)(\d{2})$/i;
var arbitraryCenturyCutoff = 30;
function validateDateString(str) {
var match;
var day, month, year;
var dt;
match = dateValidateRex.exec(str);
if (!match) {
return false;
}
day = parseInt(match[1]);
month = monthNames.indexOf(match[2].toLowerCase()); // You may need a shim on very old browsers for Array#indexOf
year = parseInt(match[3], 10);
year += year > arbitraryCenturyCutoff ? 1900 : 2000;
dt = new Date(year, month, day);
if (dt.getDate() !== day ||
dt.getMonth() !== month ||
dt.getFullYear() !== year) {
// The input was invalid; we know because the date object
// had to adjust something
return false;
}
return true;
}
return validateDateString;
})();
...or something along those lines.
Live Example | Source
Or if (like me) you hate to see a list like that list of month names repeated you can use the RegExp constructor with a string instead, but you have to remember to duplicate your backslashes:
var monthNamesString = "Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec";
var monthNames = monthNamesString.toLowerCase().split("|");
var dateValidateRex = new RegExp("^(\\d{1,2})(" + monthNamesString + ")(\\d{2})$", "i");
Live Example | Source
You would use the following regular expression to check for a string starting with 2 numbers, followed by 3 characters followed by 2 numbers
[0-9]{2}[a-zA-Z]{3}[0-9]{2}
Here is an example of url structure I'll be working with (ignore the age of electric video :) )
http://www.youtube.com/embed/ABCumLrphFA?&start=20&end=50
Basically I want to be able to grab the video id, the chosen start time (20) and end chosen time (50) and save them as variables from any URL that follows the pattern above.
So a simple setup is this:
var url = 'http://www.youtube.com/embed/ABCumLrphFA?&start=20&end=50'
// get youtube id
function youtubeid(url) {
var ytid = url.match(dont know);
ytid = ytid[1];
return ytid;
}
// get youtube start time
function youtubeStart(url) {
var ytStart = url.match(dont know);
ytStart=ytStart[1];
return ytStart;
}
// get youtube end time
function youtubeEnd(url) {
var ytEnd = url.match(dont know);
ytEnd=ytEnd[1];
return ytEnd;
}
If you could help me fill in the blanks that would be most amazing. I've been staring at regex documentation for a while now and just getting more and more confused.
This other Stack Overflow answer may help you. I used Peter Mortensen's answer below.
Get query string values in JavaScript
To obtain the actual YouTube Id, you can use this regular expression:
http:\/\/www.youtube.com\/embed\/(.{11})
That regex will return the value in parenthesis. You can test it here:
http://www.pagecolumn.com/tool/regtest.htm
Sample code:
var url = 'http://www.youtube.com/embed/ABCumLrphFA?&start=20&end=50'
// get youtube id
function youtubeid(url) {
var ytid = url.match(/http:\/\/www.youtube.com\/embed\/(.{11})/);
ytid = ytid[1];
return ytid;
}
alert(youtubeid(url));
function getParameterByName(name, url) {
var match = RegExp('[?&]' + name + '=([^&]*)')
.exec(url);
return match && decodeURIComponent(match[1].replace(/\+/g, ' '));
}
alert(getParameterByName('start', url));
alert(getParameterByName('end', url));
1
/http:\/\/www\.youtube\.com\/embed\/([^?]+)/
2
/http:\/\/www\.youtube\.com\/embed\/[^?]+.*[?&]start=(\d+)(?:&|$)/
3
/http:\/\/www\.youtube\.com\/embed\/[^?]+.*[?&]end=(\d+)(?:&|$)/
This'll only work if you know your URLs will look exactly like the one you gave (no extra query parameters; start and end always in that order; no HTTPS; etc.). But you can get them all at once:
js> str = 'http://www.youtube.com/embed/ABCumLrphFA?&start=20&end=50'
http://www.youtube.com/embed/ABCumLrphFA?&start=20&end=50
js> rxp = /http:\/\/www.youtube.com\/embed\/(.*)\?&start=(\d+)?&end=(\d+)?/
/http:\/\/www.youtube.com\/embed\/(.*)\?&start=(\d+)?&end=(\d+)?/
js> result = rxp.exec(str)
http://www.youtube.com/embed/ABCumLrphFA?&start=20&end=50,ABCumLrphFA,20,50
js> result[0]
http://www.youtube.com/embed/ABCumLrphFA?&start=20&end=50
js> result[1]
ABCumLrphFA
js> result[2]
20
js> result[3]
50
I believe it's possible to write a regex that can cope with all the quirks I mentioned above, but it's way uglier and makes it harder to understand. Anyway - hope this helps!
See also: JavaScript Regex Escape Sequences and JavaScript Regex Methods
var url = "http://www.youtube.com/embed/ABCumLrphFA?&start=20&end=50";
// get youtube id
function youtubeid(url) {
q = url.substring(url.lastIndexOf("/")+1);
var ytid = q.substring(q.lastIndexOf("?"), -1);
return ytid;
}
// get youtube start time
function youtubeStart(url) {
q = url.substring(url.lastIndexOf("/")+1);
var ytStart = q.substring(q.indexOf("&start")+7,q.indexOf("&end"));
return ytStart;
}
// get youtube end time
function youtubeEnd(url) {
q = url.substring(url.lastIndexOf("/")+1);
var ytEnd = q.substring(q.indexOf("&end")+5);
return ytEnd;
}
console.log(youtubeid(url));
console.log(youtubeStart(url));
console.log(youtubeEnd(url));
To retrieve the id
url.match(/embed\/(.*)\?/)
The best way to retrieve URL params (start and end) is to do something like Get Querystring with Dojo Then you could use the following to retrieve start and end
var qs = getUrlParams();
console.log("start is " + qs.start + " and end is " + qs.end )
The problem statement is like this: I have a contract. On renewal on every month the contract name should append with renewal identifier. For example at beginning the name is myContract then on first renewal name should be myContract-R1, next renewal name should be myContract-R2 and so on.. On each renewal, the name should automatically change. So in Jquery how can I do this?
This is a JavaScript question, not a jQuery question. jQuery adds little to JavaScript's built-in string manipulation.
It sounds like you want to take a string in the form "myContract" or "myContract-Rx" and have a function that appends "-R1" (if there's no "-Rx" already) or increments the number that's there.
There's no shortcut for that, you have to do it. Here's a sketch that works, I expect it could be optimized:
function incrementContract(name) {
var match = /^(.*)-R([0-9]+)$/.exec(name);
if (match) {
// Increment previous revision number
name = match[1] + "-R" + (parseInt(match[2], 10) + 1);
}
else {
// No previous revision number
name += "-R1";
}
return name;
}
Live copy
You can use a regular expression for this:
s = s.replace(/(-R\d+)?$/, function(m) {
return '-R' + (m.length === 0 ? 1 : parseInt(m.substr(2), 10) + 1);
});
The pattern (-R\d+)?$ will match the revision number (-R\d+) if there is one (?), and the end of the string ($).
The replacement will return -R1 if there was no revision number before, otherwise it will parse the revision number and increment it.
how you get renewal number? Calculating from date, or getting from database?
var renewal = 1,
name = 'myContract',
newname = name+'R'+renewal;
or maybe like
$(function(){
function renew(contract){
var num_re = /\d+/,
num = contract.match(num_re);
if (num==null) {
return contract+'-R1';
} else {
return contract.replace(num_re,++num[0]);
}
}
var str = 'myContract';
new_contract = renew(str); // myContract-1
new_contract = renew(new_contract); // myContract-2
new_contract = renew(new_contract); // myContract-3
});
Here jQuery can't help you. It's pure JavaScript working with strings
P.S. I have here simple reg exp, that's not concrete for your example (but it works). Better use reg-exp from example of T.J. Crowder