src/mk-string-arrays.awk

   1 ## Copyright (C) 1996-2017 The Squid Software Foundation and contributors
   2 ##
   3 ## Squid software is distributed under GPLv2+ license and includes
   4 ## contributions from numerous individuals and organizations.
   5 ## Please see the COPYING and CONTRIBUTORS files for details.
   6 ##
   7
   8 # tested with gawk, mawk, and nawk.
   9 # creates "enum.c" (on stdout) from "enum.h".
  10 # when invoked:  awk -f mk-string-arrays.awk enum.h
  11 #
  12 # 2006 by Christopher Kerr.
  13 #
  14 # 2009 modified by Amos Jeffries
  15 #   Adapted to convert individual enum headers
  16 #
  17
  18 BEGIN {
  19         print "/*"
  20         print " * Auto-Generated File. Changes will be destroyed."
  21         print " */"
  22         print "#include \"squid.h\""
  23         codeSkip = 1
  24         e = 0
  25         nspath = ""
  26 }
  27
  28 # when namespace is encountered store it
  29 /^namespace *[a-zA-Z]+/ {
  30         nspath = tolower($2) "/"                # nested folder
  31         namespace = $2                          # code namespace reconstruct
  32         next
  33 }
  34
  35 # Skip all lines outside of typedef {}
  36 /^typedef/              { codeSkip = 0; next }
  37 /^enum class / {
  38   codeSkip = 0
  39   type = $3
  40   next;
  41 }
  42 /^enum / {
  43   codeSkip = 0
  44   type = $2
  45   next;
  46 }
  47 codeSkip == 1           { next }
  48
  49 /^[ \t]*[A-Z]/ {
  50         split($1, t, ",")                       # remove ,
  51         if (sbuf) Element[++e] = "SBuf(\"" t[1] "\")"
  52         else Element[++e] = "\"" t[1] "\""
  53         next
  54 }
  55
  56 /^#/ {
  57         if (codeSkip) next
  58
  59         Wrapper[++e] = $0
  60         next
  61 }
  62
  63 /};/ {
  64   codeSkip = 1;
  65 }
  66
  67 /^} / {
  68         split($2, t, ";")                       # remove ;
  69   if (!type)
  70     type = t[1]
  71   codeSkip = 1
  72   next
  73 }
  74
  75 END {
  76         if (sbuf) print "#include \"sbuf/SBuf.h\""
  77         print "#include \"" nspath type ".h\""
  78
  79         # if namespace is not empty ??
  80         if (namespace) print "namespace " namespace
  81         if (namespace) print "{"
  82
  83         if (sbuf) print "\nconst SBuf " type "_sb[] = {"
  84         else print "\nconst char * " type "_str[] = {"
  85         for ( i = 1; i < e; ++i)
  86                 if (Wrapper[i]) print Wrapper[i]
  87                 else print "\t" Element[i] ","
  88
  89         print "\t" Element[i]
  90         print "};"
  91         if (namespace) print "}; // namespace " namespace
  92 }