Missing named-capturing group 'column' in sonar.cxx.vc.regex creates an exception

[Artemi645]

Hello! I am trying to use sonar-cxx, but it cant find any issues even with vs_project test project.

My steps:

• I use default vs_project sonar-project.properties file with my url and token properties
• Copied Sonar way CXX profile, named it CPP, activate 6200 rules and set it as default
  
  
• Run sonar-scanner.bat -X with no additional arguments
  report.txt

And receive no issues

Did I miss something when setting it up?
Also why do I get preprocessor warning in report about iostream?

• OS Windows 11
• SonarQube Community Build v25.2.0.102705
• cxx plugin version 2.2.0.1110
• sonar-scanner version 6.2.1.4610
• Java SDK 17.0.12

[guwirth]

Hi,

in the LOG file I saw:

16:35:38.730 DEBUG 1008 rules for 'compiler-vc' were loaded from server
16:35:38.731 DEBUG Searching 'sonar.cxx.vc.reportPaths' files with Ant pattern '[./reports/warnings.log]'
16:35:38.731 DEBUG Search files(s) in path(s): 'C:/sonar/vs_project/reports/warnings.log'
16:35:38.740 DEBUG Found '1' file(s)
16:35:38.740 INFO  Processing report 'C:\sonar\vs_project\reports\warnings.log'
16:35:38.754 DEBUG Processing 'Visual C++' report 'C:\sonar\vs_project\reports\warnings.log', Encoding='UTF-16LE', Pattern='(.*>)?(?<file>.*)\((?<line>\d+),\d+\):\x20warning\x20(?<id>C\d+):\x20(?<message>.*)'
16:35:38.757 DEBUG named-capturing group 'column' is not used in regex.
java.lang.IllegalArgumentException: No group with name <column>
	at java.base/java.util.regex.Matcher.getMatchedGroupIndex(Unknown Source)
	at java.base/java.util.regex.Matcher.group(Unknown Source)
	at org.sonar.cxx.sensors.compiler.CxxCompilerSensor.getSubSequence(CxxCompilerSensor.java:192)
	at org.sonar.cxx.sensors.compiler.CxxCompilerSensor.processReport(CxxCompilerSensor.java:70)
	at org.sonar.cxx.sensors.utils.CxxIssuesReportSensor.executeReport(CxxIssuesReportSensor.java:197)
	at org.sonar.cxx.sensors.utils.CxxIssuesReportSensor.executeImpl(CxxIssuesReportSensor.java:92)
	at org.sonar.cxx.sensors.utils.CxxReportSensor.execute(CxxReportSensor.java:101)
	at org.sonar.scanner.sensor.AbstractSensorWrapper.analyse(AbstractSensorWrapper.java:64)
	at org.sonar.scanner.sensor.ProjectSensorsExecutor.execute(ProjectSensorsExecutor.java:54)
	at org.sonar.scanner.scan.SpringProjectScanContainer.doAfterStart(SpringProjectScanContainer.java:173)
	at org.sonar.core.platform.SpringComponentContainer.startComponents(SpringComponentContainer.java:226)
	at org.sonar.core.platform.SpringComponentContainer.execute(SpringComponentContainer.java:205)
	at org.sonar.scanner.bootstrap.SpringScannerContainer.doAfterStart(SpringScannerContainer.java:350)
	at org.sonar.core.platform.SpringComponentContainer.startComponents(SpringComponentContainer.java:226)
	at org.sonar.core.platform.SpringComponentContainer.execute(SpringComponentContainer.java:205)
	at org.sonar.scanner.bootstrap.SpringGlobalContainer.doAfterStart(SpringGlobalContainer.java:142)
	at org.sonar.core.platform.SpringComponentContainer.startComponents(SpringComponentContainer.java:226)
	at org.sonar.core.platform.SpringComponentContainer.execute(SpringComponentContainer.java:205)
	at org.sonar.scanner.bootstrap.ScannerMain.runScannerEngine(ScannerMain.java:151)
	at org.sonar.scanner.bootstrap.ScannerMain.run(ScannerMain.java:66)
	at org.sonar.scanner.bootstrap.ScannerMain.main(ScannerMain.java:52)

16:35:38.760 WARN  Cannot find the file 'C:/projects/sonar-cxx/integration-tests/testdata/vs_project/src/main.cpp' in project 'vs_project' with baseDir 'C:\sonar\vs_project', skipping

Think that is the reason?

• Is your VC report with or without column numbers?
• Did you set the regex or is it the default?

Regards,

[Artemi645]

Regex is default as well as VC report.
I tried another expamples and its works fine.
So, I think the problem was with the old regex.

But what about with include warning? In another examples the same problem

[guwirth]

But what about with include warning? In another examples the same problem

Maybe this page helps https://github.com/SonarOpenCommunity/sonar-cxx/wiki/Detect-and-fix-parsing-errors

[guwirth]

So, I think the problem was with the old regex.

This one:

sonar-cxx/integration-tests/testdata/vs_project/sonar-project.properties

Line 22 in 8ac57b8

sonar.cxx.vc.regex=(.*>)?(?<file>.*)\\((?<line>\\d+),\\d+\\):\\x20warning\\x20(?<id>C\\d+):\\x20(?<message>.*)

[Artemi645]

Okay, i will check it

Thank you!

[guwirth]

Todo:

• verify missing named-capturing group 'column' in sonar.cxx.vc.regex
• repair integration test vc_project

[guwirth]

Should work without exception in LOG file

sonar-cxx/cxx-sensors/src/main/java/org/sonar/cxx/sensors/compiler/CxxCompilerSensor.java

Line 196 in 8ac57b8

LOG.debug("named-capturing group '{}' is not used in regex.", groupName, e);