[bug #62337] Support complex PHP variables in a string

[Silvério]

URL:
  <https://savannah.gnu.org/bugs/?62337>

                 Summary: Support complex PHP variables in a string
                 Project: GNU gettext
            Submitted by: sil
            Submitted on: Wed 20 Apr 2022 11:11:24 AM UTC
                Category: PHP
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

System: Debian Bullseye
xgettext version: 0.21

When running

xgettext -l PHP ...

on a PHP source file with translatable strings in the function 

_()

 and enclosed in double ", only the ones _without_ complex aka. curly
variables
<https://www.php.net/manual/en/language.types.string.php#language.types.string.parsing.complex>
in the string are identified and added to the .pot, while those including them
are skipped.
Also found no way to manually add those strings into the .pot, that is
overwritten by invocations of xgettext, effectively leaving those strings
out.

- Expected behavior: Include the strings with complex syntax with the content
of {$<expression>} (where expression is a PHP expression) to be copied as is
into msgid.
- Observed behavior: Strings with complex syntax are completely skipped.




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