pm-finamis opened a new issue, #6066:
URL: https://github.com/apache/jmeter/issues/6066
### Use case
UDV now only supports replacing the whole value match for ${variableName}.
1) Sometimes the parameter values are not unique enough
E.g. in request body
TENANT_ID|1|STYLE_ID|1
a value match "1" is not unique enough to identify tenantId variable and 2
replacements would be done.
TENANT_ID|${tenantId}|STYLE_ID|${tenantId}
2) or are not needed at all to place a new variable into test.
E.g. in request body
TENANT_ID|1|STYLE_ID|1
match value of "1" is not needed and better way would be looking for
parameter name "TENANT_ID".
### Possible solution
Support regex group matching and replacing
E.g. in request body
TENANT_ID|1|STYLE_ID|1
for pattern: (?<prefix>\bTENANT_ID\|)(?<value>[0-9]+?)(?<suffix>\|\b)
groups prefix and suffix would be copied without change, value group would
be replaced by the variable ${tenantId}.
result would be
TENANT_ID|${tenantId}|STYLE_ID|1
Pattern is able to identify variables without even knowing the value of the
parameter in request body, it matches any number.
Although a static value could be used
(?<prefix>\bTENANT_ID\|)(?<value>123)(?<suffix>\|\b) too.
Please see the attached patch
[ReplaceFunctionsWithStrings.patch](https://github.com/apache/jmeter/files/12396493/ReplaceFunctionsWithStrings.patch)
Only java regex are implemented, not oro.
Method transformValueWithJavaRegex is made protected to be used in unit
tests.
UDV values that contain regex for group replace would be identified by '*'
at their start for backward compatibility.
### Possible workarounds
_No response_
### JMeter Version
5.6.2
### Java Version
17
### OS Version
_No response_
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