TextField with RegExpValidator

ekkescorner

I want to set a validator which allows following input into a (QtQuickControls2) TextField:

nnn/nnn
where nnn can have 2 or 3 digits and a minimum of 30 and a maximum of 300
per ex

80/120
110/90

RegEx is very powerful, but I'm always fighting with the syntax ;-)

can someone help with the exact syntax ?

validator: RegExpValidator{regExp: "???"}

thx

koahnig

@ekkescorner

Do you mean the regExp syntax?

Derived from c++ probably more "\\d{2,3}/\\d{2,3}".
This is tested with the regExp example in C++. Since I do not know Qt Quick, I do not know the requirements for backslashes and their duplication.

Note: this satisfies also "80/90" and "100/120". Possibly this is already enough for you.

koahnig

Playing a bit more with the example
it would be: "^(\\d{2,2}/\\d{3,3})|(\\d{3,3}/\\d{2,2})$" and allows only digits and forward as in your description.

SGaist

Hi,

While @koahnig is correct from a C++ POV, JavaScript syntax is a bit different and IIRC RegExpValidator takes a JS regex.
Something like /\d{2,3}\/\d{2,3}/ should be enough.

ekkescorner

@SGaist said in TextField with RegExpValidator:

Hi,

While @koahnig is correct from a C++ POV, JavaScript syntax is a bit different and IIRC RegExpValidator takes a JS regex.
Something like /\d{2,3}\/\d{2,3}/ should be enough.

so to check min and max I can split the text by '/' and check both numbers

thx for helping - will try it out

ekkescorner

@SGaist said in TextField with RegExpValidator:

Hi,

While @koahnig is correct from a C++ POV, JavaScript syntax is a bit different and IIRC RegExpValidator takes a JS regex.
Something like /\d{2,3}\/\d{2,3}/ should be enough.

did this:

validator: RegExpValidator{regExp: "/\d{2,3}\/\d{2,3}/"}

but got an error:

Invalid property assignment: regular expression expected; use /pattern/ syntax

regexp mentioned @koahnig also don't work

p3c0

@ekkescorner Try without quotes.

ekkescorner

@p3c0 thx it works without the quotes

next question:
if I want to allow
one character of

/
.
,

how must the regexp be constructed ?

reason:
on Android and iOS want to use virtual numeric keyboard where I don't have a '/'
but I can enter . on Android and , on iOS (german locale)
so I do a text.replace changing . or , into /
but using the RegExp only allowing a / as separator I cannot enter . or ,

thx again

ekkescorner

@ekkescorner found it:

/\d{2,3}[\.\,\/]\d{2,3}/

thx all for help