[
https://issues.apache.org/jira/browse/FREEMARKER-232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17944504#comment-17944504
]
Dániel Dékány commented on FREEMARKER-232:
------------------------------------------
You mean an option where the {{num instance BigDecimal}} branch simply does
{{return n.toString()}}, and nothing else?
While {{CTemplateNumberFormat}} can have such option, it's not even a public
class. Plus you had to set the {{CFormat}} in your configuration (which then
contains the desired {{CTemplateNumberFormat}} instance), and {{CFormat}} is
also not yet user implementable. But technically, it's possible for FreeMarker
to out-of-the-box provide a such {{CFormat}}, with some name like
{{RawJavaCFormat}}.
But, I wonder if this behavior is something that users typically want
everywhere in the template, or rather, only at some specific places inside a
template. Because in the last case setting a template-wide {{CFormat}} won't
cut it.
> Add configuration option to skip call to stripTrailingZeros on BigDecimal
> Numbers
> ---------------------------------------------------------------------------------
>
> Key: FREEMARKER-232
> URL: https://issues.apache.org/jira/browse/FREEMARKER-232
> Project: Apache Freemarker
> Issue Type: Improvement
> Components: engine
> Affects Versions: 2.3.32
> Reporter: Sune Keller
> Priority: Major
>
> When evaluating a template in which the model contains a field for which the
> value is a simple BigDecimal with a given scale and trailing zeros within
> that scale, the trailing zeros are stripped away by the implementation in
> {{{}freemarker.core.CTemplateNumberFormat#formatToPlainText{}}}:
> {code:java}
> } else if (num instanceof BigDecimal) {
> BigDecimal bd = ((BigDecimal) num).stripTrailingZeros();
> int scale = bd.scale();
> if (scale <= 0) {
> // A whole number. Maybe a long ID in a database or other system, and
> for those exponential form is not
> // expected generally, so we avoid that. But then, it becomes too
> easy to write something like
> // 1e1000000000000 and kill the server with a terra byte long
> rendering of the number, so for lengths
> // that realistically aren't ID-s or such, we use exponential format
> after all:
> if (scale <= -100) {
> return bd.toString(); // Will give exponential form for this scale
> }
> return bd.toPlainString(); // Never gives exponential form
> }
> // `db` is not a whole number. Note that `bd` is already normalized to
> not have trailing zeroes.
> return bd.toString(); // Gives exponential form of the absolute value of
> the number is less than 1E-7 {code}
> It would be wonderful to be able to configure whether any trailing zeros are
> stripped or not by way of some configuration option, so as to avoid having to
> copy and re-implement this final non-public class.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
