问题
I have a JasperReports template that contains a textField element that will contain a variable length of strings. If the string is too long to fit the width, it'll be split which is fine except when the string contains a hyphen or a space char. In this case the string is split from that char. Below are some example of what's the input, observed outcome and wanted outcome + summary to make my point easier to understand.
input observed wanted summary
_____________________________________
overflow -> overfl -> overfl : OK
over flow -> over -> over f : NOT OK
over-flow -> over- -> over-f : NOT OK
Setting the reportElement to have isStretchWithOverflow="true" attribute will split the text on two lines, but this is not wanted behaviour.
Is there anyway to fix this?
Thanks.
EDIT: The input data comes from an external source, so I cannot directly change that. I ran some tests and noticed that using non-breaking space will do for spaces. non-breaking hyphen on the other hand is not printed at all, i.e. text 'over-flow' becomes 'overflow'. Not quite what is wanted.
Despite the input source not in my control, I could fix this problem by writing a Scriptlet that'll change spaces to non-breaking spaces and hyphens to non-breaking hyphens, only if those darn non-breaking hyphens would be printed.
Printing to PDF by the way, in case that gives some hints of the problem.
回答1:
Type in the Text field ''Expression'' like this:
String.join("\uFEFF", $F{field1}.split("(?!^)"))
回答2:
It's a font issue. Non-breaking hyphen works(\u2011) fine, when the font supports it. See fonts sample on how load other than the default font (DejaVu Sans for example).
If anyone has a better option for the input source modification than the Scriptlet, please let me know.
(Marking my own answer as correct in order to get this topic closed.)
EDIT: Have to wait for two days in order to mark this answer correct.
来源：https://stackoverflow.com/questions/12312899/jasperreports-prevent-textfield-to-split-on-space-or-hyphen