scripts/config2c.py

   1 #!/usr/bin/python
   2
   3 # $Id$
   4
   5 # Converts config file for shared libraries to a C file
   6 # with function prototypes.
   7 # A *.conf file is searched in the current directory.
   8 # Result is print to STDOUT.
   9
  10 import re
  11 import glob
  12 import sys
  13
  14 lvo = 5                      # 1st functions has always LVO of 5
  15 libtype = "struct Library"   # default
  16 libvar = "library"           # default
  17 mode = ""
  18 tab = "    "                 # tabulator for identation
  19 wrapped = False              # set to True if you want wrapping by "#ifdef __AROS__"
  20
  21 # regex for splitting line into rettype, retval, args, regs
  22 linepatt = re.compile('(.+?)\s*(\w*)\s*\((.*?)\)\s*\((.*?)\)')
  23
  24 # regex for splitting arg into rettype and argname
  25 argpatt = re.compile('\s*(.*?)\s*(\w+)\s*$')
  26
  27 # regex for splitting line into two parts
  28 splitpatt = re.compile('([#\w]*?)\s+(.*)\s*$')
  29
  30 infiles = glob.glob("*.conf")
  31 if len(infiles) != 1:
  32     sys.stderr.write("There must be one *.conf in current directory")
  33     sys.exit(1)
  34
  35 libname = infiles[0].rsplit(".")
  36 libname = libname[0].capitalize()
  37
  38 infile = open(infiles[0], "r")
  39
  40 for line in infile:
  41     parts = splitpatt.match(line)
  42     if parts and parts.group(1) == "##begin":
  43         mode = parts.group(2)
  44     elif parts and parts.group(1) == "##end":
  45         mode = ""
  46     elif mode == "config":
  47         if parts and parts.group(1) == "libbasetype":
  48             libtype = parts.group(2)
  49     elif mode == "functionlist":
  50         res = linepatt.match(line)
  51         if res:
  52             rettype = res.group(1)
  53             funcname = res.group(2)
  54             args = res.group(3).split(",")
  55             regs = res.group(4).split(",")
  56             argcnt = len(args)
  57             if argcnt == 1 and args[0].strip() == "":
  58                 argcnt = 0
  59             if wrapped:
  60                 print "#ifdef __AROS__"
  61             print "AROS_LH%d(%s, %s, " %(argcnt, rettype, funcname)
  62             for i in range(argcnt):
  63                 argres = argpatt.match(args[i])
  64                 print "%sAROS_LHA(%s, %s, %s)," %(tab, argres.group(1), argres.group(2), regs[i])
  65             print "%s%s *, %s, %d, %s" %(tab, libtype, libvar, lvo, libname)
  66             print ")\n{"
  67             print "%sAROS_LIBFUNC_INIT" %(tab)
  68             if wrapped:
  69                 print "#else"
  70                 print "#endif\n"
  71                 print "#ifdef __AROS__"
  72             print "%sAROS_LIBFUNC_EXIT" %(tab)
  73             if wrapped:
  74                 print "#endif"
  75             print "}\n"
  76
  77         # even empty line increase LVO
  78         lvo = lvo + 1
  79
  80
  81 infile.close()