src/mk-string-arrays.awk

   1 # tested with gawk, mawk, and nawk.
   2 # drop-in replacement for mk-string-arrays.pl.
   3 # creates "enum.c" (on stdout) from "enum.h".
   4 # invoke similarly: perl -f mk-string-arrays.pl  enum.h
   5 #               -->  awk -f mk-string-arrays.awk enum.h
   6 #
   7 # 2006 by Christopher Kerr.
   8 #
   9 # 2009 modified by Amos Jeffries
  10 #   Adapted to convert individual enum headers
  11 #
  12
  13 BEGIN {
  14         print "/*"
  15         print " * Auto-Generated File. Changes will be destroyed."
  16         print " */"
  17         print "#include \"squid.h\""
  18         codeSkip = 1
  19         e = 0
  20         nspath = ""
  21 }
  22
  23 # when namespace is encountered store it
  24 /^namespace [a-zA-Z]+/  {
  25         nspath = tolower($2) "/"                # nested folder
  26         namespace = $2                          # code namespace reconstruct
  27         next
  28 }
  29
  30 # Skip all lines outside of typedef {}
  31 /^typedef/              { codeSkip = 0; next }
  32 codeSkip == 1           { next }
  33
  34 /^[ \t]*[A-Z]/ {
  35         split($1, t, ",")                       # remove ,
  36         Element[++e] = t[1]
  37         next
  38 }
  39
  40 /^#/ {
  41         if (codeSkip) next
  42
  43         Wrapper[++e] = $0
  44         next
  45 }
  46
  47 /^} / {
  48         split($2, t, ";")                       # remove ;
  49         type = t[1]
  50         codeSkip = 1
  51
  52         print "#include \"" nspath type ".h\""
  53
  54         # if namesapce is not empty ??
  55         if (namespace) print "namespace " namespace
  56         if (namespace) print "{"
  57
  58         print "\nconst char *" type "_str[] = {"
  59         for ( i = 1; i < e; ++i)
  60                 if (Wrapper[i]) print Wrapper[i]
  61                 else print "\t\"" Element[i] "\","
  62
  63         print "\t\"" Element[i] "\""
  64         print "};"
  65         if (namespace) print "}; // namespace " namespace
  66         next
  67 }