The this2that library provides utility functions for converting from one object to another
General Functions
transform
transform(<obj>,<sort options> |,<global options>)
| Parameter | Datatype | Required |
|---|---|---|
| <obj> | hash/map or array | √ |
| <sort options> | hash or array of hashes | √ |
| <global options> | hash |
<obj> : array or hash of values to be sorted
...
| Code Block | ||||
|---|---|---|---|---|
| ||||
myArray = [ {
'retweet_count' : 360,
'created_at' : 'Fri Aug 16 21:19:37 +0000 2013',
'in_reply_to_status_id_str' : undef,
'contributors' : undef,
'text' : "RT \@SharylAttkisson: Still waiting for White House to call back to release the White House photos from Benghazi night. I've been asking sin\x{2026}",
'user' : {
'id_str' : '13524182',
'id' : 13524182
},
'id' : '368482201631227904',
'lang' : 'en',
'geo' : undef,
'id_str' : '368482201631227904',
'favorite_count' : 0,
},
..
] |
Providing an array as the sorted object will return the entire object entries in sorted order (sort by value)
Simple sort on a field
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
sort_opt = {
'path' : ['retweet_count']
};
sorted_array = this2that:transform(myArray,sort_opt); |
Descending sort
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
sort_opt = {
'path' : ['retweet_count'],
'reverse' : 1
};
sorted_array = this2that:transform(myArray,sort_opt); |
Force sort on <field> as a string
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
sort_opt = {
'path' : ['retweet_count'],
'compare' : 'string'
};
sorted_array = this2that:transform(myArray,sort_opt); |
Sort on a date field
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
sort_opt = {
'path' : ['created_at'],
'compare' : 'datetime',
'format' : '%a %b %d %H:%M:%S %z %Y'
};
sorted_array = this2that:transform(myArray,sort_opt); |
Sort on multiple fields, retweet_count (descending) then favorite_count (ascending)
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
sort_opt = [
{
'path' : ['retweet_count'],
'reverse' : 1
},
{
'path' : ['favorite_count']
}
];
sorted_array = this2that:transform(myArray,sort_opt); |
Skip the first 5 entries
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
sort_opt = {
'path' : ['retweet_count']
};
global_opt = {
'index' : 4
};
sorted_array = this2that:transform(myArray,sort_opt,global_opt); |
Skip 5, only return 7 entries
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
sort_opt = {
'path' : ['retweet_count']
};
global_opt = {
'index' : 4,
'limit' : 7
};
sorted_array = this2that:transform(myArray,sort_opt,global_opt); |
Sort the values of a hash
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
sort_opt = {
'path' : ['retweet_count'],
'reverse' : 1
};
sorted_hash_keys = this2that:transform(myHash{['path', 'to', 'keys']},sort_opt); |
xml2json
xml2json(<string>|,<map>) - convert a string of XML to JSON
...
Each of these requires an array the fields that you desire to either suppress the value or the entire element
Char
chr
chr(<integer>)
Returns the ascii value of the passed number
...
For values beyond 0x0100 in the Unicode chart, you can pass a hex value for a Unicode character and get that character back
ord
ord(<string>)
KRL doesn't distinguish chars from string, so if the string provided has more than one character, only the first character will be processed
...
For heaven's sake, if you are cutting and pasting characters between sources and KRL, make sure that your encoding is set to 'UTF-8'. Many browsers will default to Western (ISO-8859-1) which translates approximately to garbage in the Unicode table.
pack
pack([<integer>, <integer2> .. , <integerN>] );
...
pack is restricted to assembling strings
unpack
unpack(<string>);
Returns an array of ordinal values
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
myArray = this2that:unpack("hij"); // [104, 105, 106]
|
pack is restricted to assembling strings
Base64
string2base64
string2base64(<string>|,<eol>)
...
Omitting the <eol> character will return an unformatted base64 string
base642string
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
txt = this2that:base642string("U3VwZXJEdXBlcjogYXNjaWk=") |
url2base64
The url-safe base64 conversions use "-" and "_" instead of "+" and "/"
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
url64 = this2that:url2base64("3+4/7 = 1"); |
base642url
| Code Block | ||||||
|---|---|---|---|---|---|---|
| ||||||
urltxt = this2that:base642url("Mys0LzcgPSAx"); |
...