Regualar expressions not properly escaped in viv_ip_xci_editor.py

[vtyibin]

The "\" character for the regular expressions are not properly escaped in fpga/usrp3/tools/scripts/viv_ip_xci_editor.py. The following are the console outputs when running rfnoc_image_builder -y x310_XG_rfnoc_image_core.yml.

Using the latest "UHD-4.8" branch.

BUILDER: Checking tools...
* GNU bash, version 5.2.37(1)-release (x86_64-pc-linux-gnu)
* Python 3.12.8
* Vivado v2021.1_AR76780 (64-bit)
========================================================
BUILDER: Building IP axi64_4k_2clk_fifo
========================================================
BUILDER: Staging IP in build directory...
BUILDER: Reserving IP location: /home/donald/VTWorks/GNURadio/uhd-4.8/fpga/usrp3/top/x300/build-ip/xc7k410tffg900-2/axi64_4k_2clk_fifo
BUILDER: Retargeting IP to part kintex7/xc7k410t/ffg900/-2...
/home/donald/VTWorks/GNURadio/uhd-4.8/fpga/usrp3/tools/scripts/viv_ip_xci_editor.py:32: SyntaxWarning: invalid escape sequence '\<'
  return '(.*\<' + tag_text + '\>)(.+)(\</' + tag_text + '\>)'
/home/donald/VTWorks/GNURadio/uhd-4.8/fpga/usrp3/tools/scripts/viv_ip_xci_editor.py:32: SyntaxWarning: invalid escape sequence '\>'
  return '(.*\<' + tag_text + '\>)(.+)(\</' + tag_text + '\>)'
/home/donald/VTWorks/GNURadio/uhd-4.8/fpga/usrp3/tools/scripts/viv_ip_xci_editor.py:32: SyntaxWarning: invalid escape sequence '\>'
  return '(.*\<' + tag_text + '\>)(.+)(\</' + tag_text + '\>)'
/home/donald/VTWorks/GNURadio/uhd-4.8/fpga/usrp3/tools/scripts/viv_ip_xci_editor.py:34: SyntaxWarning: invalid escape sequence '\<'
  return '(.*\<spirit:configurableElementValue spirit:referenceId=\".*\.' + item + '\"\>)(.+)(\</spirit:configurableElementValue\>)'
/home/donald/VTWorks/GNURadio/uhd-4.8/fpga/usrp3/tools/scripts/viv_ip_xci_editor.py:34: SyntaxWarning: invalid escape sequence '\>'
  return '(.*\<spirit:configurableElementValue spirit:referenceId=\".*\.' + item + '\"\>)(.+)(\</spirit:configurableElementValue\>)'
/home/donald/VTWorks/GNURadio/uhd-4.8/fpga/usrp3/tools/scripts/viv_ip_xci_editor.py:36: SyntaxWarning: invalid escape sequence '\<'
  return '(.*\<spirit:configurableElementValue spirit:referenceId=\".*\.' + item + '\")/\>'
/home/donald/VTWorks/GNURadio/uhd-4.8/fpga/usrp3/tools/scripts/viv_ip_xci_editor.py:36: SyntaxWarning: invalid escape sequence '\>'
  return '(.*\<spirit:configurableElementValue spirit:referenceId=\".*\.' + item + '\")/\>'