How to suppress specific cases of syntaxError with CppCheck

Question

I'm running CppCheck over some files containing CLI code. As the CLI portions of the file make use of '^)' characters, I'm trying to suppress the "false positive" syntaxError generated by CppCheck due to those characters.

Rather than using inline suppression commands, I have decided to create an XML suppression file to achieve my purpose.

Here is a snippet of the suppression file.

<?xml version="1.0"?> 
<suppressions>
    <suppress>
        <id>syntaxError</id> 
        <fileName>src/file1.c</fileName>
        <symbolName>^)</symbolName>
    </suppress>
        ...
</suppressions>

This is based off example shown by the CppCheck manual

<?xml version="1.0"?> 
<suppressions>
    <suppress>
       <id>uninitvar</id> 
       <fileName>src/file1.c</fileName>         
<      <lineNumber>10</lineNumber>      
       <symbolName>var</symbolName>
    </suppress>
</suppressions>

As you can see, I am trying to use the symbolName field to specify that all syntaxError due to ^) should be suppressed.

However, my suppression currently does not suppress any syntaxErrors.