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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>My opinion is to stick with M4. Where's the added value in re-implementing a small subset of M4's capability into OpenSIPs? I would rather that development effort be directed toward enhancing OpenSIPs even more.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Leaning m4 can make the management of multiple configurations a breeze -- I support four different environments (development, QA, pre-production and production) across 5 geo-redundant data centers all with a single .m4 file. The use of m4 has _<i>greatly</i>_ simplifies the logic that I have to maintain. After learning m4, you can apply that knowledge to other projects (code generators).<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Granted, the quoting in m4 takes a bit getting used to but I feel that any sufficiently powerful macro language would have to have something similar. If not, it wouldn't be sufficiently powerful enough for my uses.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'> users-bounces@lists.opensips.org [mailto:users-bounces@lists.opensips.org] <b>On Behalf Of </b>Bogdan-Andrei Iancu<br><b>Sent:</b> Tuesday, April 10, 2012 10:50 AM<br><b>To:</b> users@lists.opensips.org<br><b>Subject:</b> [OpenSIPS-Users] RFC: text pre-processing in OpenSIPS cfg file<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><tt><span style='font-size:10.0pt'>Hi,</span></tt><span style='font-size:10.0pt;font-family:"Courier New"'><br><br><tt>I'm bringing here a discussion started on devel list, as I would like to get more opinions on the matter.</tt><br><br><tt>The discussion started around the decision if makes sense to have MACRO substitution (as text pre-processing) directly in OpenSIPS, considering that right now M4 is heavenly used for this (as additional tool to opensips).</tt><br><br><tt>So, the debate was : have built-in text pre-processing <b>versus</b> using M4 as text processor </tt><br><br><tt>Pros for M4:</tt><br><tt> - no effort to develop extra stuff - just install M4</tt><br><tt> - can do really complex things (more than only macros, ifdef, include, etc)</tt><br><tt> - you can use it or not</tt><br><tt> - easy to integrate with start / stop scripts</tt><br><tt>Against for M4:</tt><br><tt> - need to be installed and integrated</tt><br><tt> - you may have a mismatch for the line number (if errors reported in cfg) between the .m4 file and .cfg file</tt><br><br><tt>Pros for buit-in:</tt><br><tt> - you do no need to install M4 at all (everything comes packet)</tt><br><tt> - you may get accurate reporting on errors (for line in cfg) </tt><br><tt>Against for M4:</tt><br><tt> - more devel work to re-implement macros, ifdef, etc</tt><br><br><br><tt>Now, I would like to get your opinions on that (you as opensips users), to see if we stick to using M4 for cfg pre-processing or there is a real need to have this functionality as built-in.</tt><br><br><tt>Thanks and regards,</tt><br><tt>Bogdan</tt><br><br><br></span><o:p></o:p></p><pre>-- <o:p></o:p></pre><pre>Bogdan-Andrei Iancu<o:p></o:p></pre><pre>OpenSIPS Founder and Developer<o:p></o:p></pre><pre><a href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a><o:p></o:p></pre></div></body></html>