Hello,

can you try with the patch from commit:

  * https://github.com/kamailio/kamailio/commit/eaec3aaac227eb4a8c48f93b45565d15d4a0a991

If works, then I will backport.

The transformation is designed for working with lines in sip message that are terminated with CRLF, by searching for LF (\n) to cover the unix/dos. If you want to remove \r, there is a string trim transformation. I haven't seen lines finished only with \r flowing in the SIP world, but feel free to add new features in the code and propose pull requests via github project portal.

Cheers,
Daniel

I think I’ve found an edge case with the string transformations for line.count:

In pv_trans.c, the following code does not appear to consider the last line if there are multiple lines and the last one is not terminated with \n.

case TR_LINE_COUNT:
    n=0;
    for(i=0; i<val->rs.len; i++)
        if(val->rs.s[i]=='\n')
            n++;
    if(n==0 && val->rs.len>0)
        n = 1;
    val->flags = PV_TYPE_INT|PV_VAL_INT|PV_VAL_STR;
    val->ri = n;
    val->rs.s = int2str(val->ri, &val->rs.len);
    break;

This means that my count is always one off unless I force a blank line at the end of my string.

Also, this code does not cater for cases where there is a different line terminator, such as CR or CRLF as is the case when the string comes from a Mac or windows system, respectively; it might be useful to have a transformation for doing that as I’ve had to hack it using s.replace with hexadecimal escape codes (\r and \n do not work) in a variable.

With every blessing,

—

Daniel Donoghue

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