template function, how to combine float and string?

hlhp · 04-17-2023, 08:49 AM

how can i combine the following to a string? can not find reference in doc, or i missing it.

Code:

program: floor(field('#floatx') / 333) + "books"

theducks · 04-17-2023, 12:10 PM

a WAG (not a python coder)

Code:

format_number(v, template)

chaley · 04-17-2023, 01:06 PM

Quote:

Originally Posted by hlhp

how can i combine the following to a string? can not find reference in doc, or i missing it.

Code:

program: floor(field('#floatx') / 333) + "books"

Assuming you want '+' to be string concatenation:

In the manual under General Program Mode

Quote:

String concatenation (&). The & operator returns a string formed by concatenating the left-hand and right-hand expressions. Example: 'aaa' & 'bbb' returns 'aaabbb'. The operator is associative and evaluates left to right.

In the manual under "Additional Functions Available":

Quote:

strcat(a [, b]*) – can take any number of arguments. Returns a string formed by concatenating all the arguments.

In the String manipulation section of the Function reference manual:
strcat(a, b):

Quote:

class calibre.utils.formatter_functions.BuiltinStrcat[source]
strcat(a [, b]*) – can take any number of arguments. Returns the string formed by concatenating all the arguments

hlhp · 04-17-2023, 03:04 PM

thank you theducks & chaley

I cannot believe I was looking at the wrong documentation. I replaced + with & and it works now.

Code:

program: floor(field("#floatx") / 333) & "a"

04-17-2023, 08:49 AM	#1
hlhp Member Posts: 17 Karma: 10 Join Date: Mar 2019 Device: none	template function, how to combine float and string? how can i combine the following to a string? can not find reference in doc, or i missing it. Code: program: floor(field('#floatx') / 333) + "books"

04-17-2023, 12:10 PM	#2
theducks Well trained by Cats Posts: 31,271 Karma: 61916422 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	a WAG (not a python coder) Code: format_number(v, template)

04-17-2023, 03:04 PM	#4
hlhp Member Posts: 17 Karma: 10 Join Date: Mar 2019 Device: none	thank you theducks & chaley I cannot believe I was looking at the wrong documentation. I replaced + with & and it works now. Code: program: floor(field("#floatx") / 333) & "a"

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