Changelog record finder

changes

# Looks for pattern PATTERN in file input.tex.
# Returns an empty-line delimited block of text surrounding the pattern.

awk 
    -v "pattern=PATTERN" 
    -v "bold=$(tput bold)" 
    -v "sgr0=$(tput sgr0)" 
    -v RS= 
    -v 'ORS=\n\n' 

    'match($0, pattern) 

      { 
        o = ""; 
        while (match($0, pattern)) 

        { 
          o = o substr($0, 1, RSTART - 1) bold substr($0, RSTART, RLENGTH) sgr0;
          $0 = substr($0, RSTART + RLENGTH) 
        }

        print o $0 
      }' 
      
input.txt