text: #assumes you have gnu sed, osx sed might need slight syntax changeo
  #c.f. https://unix.stackexchange.com/questions/112023/how-can-i-replace-a-string-in-a-files
  
  #written by shen-noether inspacoin research labs
  
  import os #for copying and sed etc.
  import glob #for copy files
  import textwrap #for comments etc
  
  print("make sure you have cat and grep installed")
  print("also assumes gnu sed syntax, c.f. :https://unix.stackexchange.com/questions/112023/how-can-i-replace-a-string-in-a-files")
  print("I believe osx may have slightly different version of sed")
  print("maybe someone smart can replace the sed with perl..")
  
  a = ""
  
  license = textwrap.dedent("""\
      // Copyright (c) 2014-2018, The InSPa Project
      // 
      // All rights reserved.
      // 
      // Redistribution and use in source and binary forms, with or without modification, are
      // permitted provided that the following conditions are met:
      // 
      // 1. Redistributions of source code must retain the above copyright notice, this list of
      //    conditions and the following disclaimer.
      // 
      // 2. Redistributions in binary form must reproduce the above copyright notice, this list
      //    of conditions and the following disclaimer in the documentation and/or other
      //    materials provided with the distribution.
      // 
      // 3. Neither the name of the copyright holder nor the names of its contributors may be
      //    used to endorse or promote products derived from this software without specific
      //    prior written permission.
      // 
      // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
      // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
      // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
      // THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
      // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
      // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
      // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
      // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
      // 
      // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
      """)
  
  crypto_ops_includes = textwrap.dedent("""\
      #include <assert.h>
      #include <stdint.h>
  
      #include "warnings.h"
      #include "crypto-ops.h"
  
      DISABLE_VS_WARNINGS(4146 4244)
      """)
  
  predeclarations = textwrap.dedent("""\
      /* Predeclarations */
  
      static void fe_mul(fe, const fe, const fe);
      static void fe_sq(fe, const fe);
      static void fe_tobytes(unsigned char *, const fe);
      static int fe_isnonzero(const fe); 
      static void ge_madd(ge_p1p1 *, const ge_p3 *, const ge_precomp *);
      static void ge_msub(ge_p1p1 *, const ge_p3 *, const ge_precomp *);
      static void ge_p2_0(ge_p2 *);
      static void ge_p3_dbl(ge_p1p1 *, const ge_p3 *);
      static void ge_sub(ge_p1p1 *, const ge_p3 *, const ge_cached *);
      static void fe_divpowm1(fe, const fe, const fe);
      """)
  
  
  
  fe_comments = textwrap.dedent("""\
      /*
      fe means field element.
      Here the field is \Z/(2^255-19).
      An element t, entries t[0]...t[9], represents the integer
      t[0]+2^26 t[1]+2^51 t[2]+2^77 t[3]+2^102 t[4]+...+2^230 t[9].
      Bounds on each t[i] vary depending on context.
      */
      """)
  
  sc_comments = textwrap.dedent("""\
      /*
       *
       * sc code
       *
       *
      The set of scalars is \Z/l
      where l = 2^252 + 27742317777372353535851937790883648493.
  
      This is the order of the curve ed25519. 
      The point is that if a is a scalar and P is a point,
      and b is congruent to a mod l, then aP = bP.
      Thus, reducing mod l can possibly give you a smaller scalar,
      so your elliptic curve operations take less time
      */
      """)
  
  ge_comments = textwrap.dedent("""\
      /*
       *
       * ge code
       *
       *
      ge means group element.
  
      Here the group is the set of pairs (x,y) of field elements (see fe.h)
      satisfying -x^2 + y^2 = 1 + d x^2y^2
      where d = -121665/121666.
  
      Representations:
        ge_p2 (projective): (X:Y:Z) satisfying x=X/Z, y=Y/Z
        ge_p3 (extended): (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT
        ge_p1p1 (completed): ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T
        ge_precomp (Duif): (y+x,y-x,2dxy)
      */
      """)
  
  xmr_comments = textwrap.dedent("""\
      /*
       *
       * xmr specific code
       *
       *
      This code is from the original CryptoNote.
      Some additional functions were needed to compute ring signatures
      which are not needed for signing. 
      Note that sc_sub and sc_mulsub have been given their own file
      since these have been rewritten 
  
      */
      """)
  
  
  
  
  def qhasmToC(fi, header, out):
      #replaces mentiones of "header" in "fi" with output in "out"
      #also removes qhasm comments
      out1 = out+".tmp"
      rem_qhasm = " |grep -v 'qhasm' |grep -v ' asm'"
      com = "sed -e '/#include \""+header+"\"/ {' -e 'r "+header+"' -e 'd' -e '}' "+fi+rem_qhasm+" > "+out1
      com2 = "awk 'NF' "+out1+" > "+out
      print(com)
      os.system(com)
      print(com2)
      os.system(com2)
      os.remove(out1) #temporary
  
  while (a != "m") and (a != "m") and (a != "c"):
      a = raw_input("Make / Clean/ Quit    m / c / q?")
  
  if a == "m":
      print("making crypto-ops.c and crypto-ops.h")
  
  
      #ref10 header files
  
      #ref10 c files
  
      #fe things
      #still need to do d2, d, sqrtm1
      print("making fe.c")
      print(fe_comments)
      fe = glob.glob("fe*.c")
      for g in fe:
          os.system("cp "+g+" "+g.replace("fe", "fe.inspacoin."))
      qhasmToC("fe_pow22523.c", "pow22523.h", "fe.inspacoin._pow22523.c")
      qhasmToC("fe_invert.c", "pow225521.h", "fe.inspacoin._invert.c")
      os.system("rm fe.inspacoin._isnonzero.c") #since it's modified, it's in xmrSpecificOld
      os.system("cat fe.inspacoin.*.c | grep -v '^#include' > fe.inspacoin.c")
  
      #sc things
      print("\nmaking sc.c")
      print(sc_comments)
      #so you don't get multiple "loads"
      os.system("tail -n +24 sc_reduce.c > sc.inspacoin._reduce.c") #also good on linux
      os.system("tail -n +24 sc_muladd.c > sc.inspacoin._muladd.c")
      os.system("tail -n +31 sc_sub.xmr.c > sc.inspacoin._sub.xmr.c") #careful with the tails if you change these files!
      os.system("cat sc.inspacoin.*.c | grep -v '^#include' > sc.inspacoin.c")
  
      #ge stuff
      print("making ge.c")
      ge = glob.glob("ge*.c")
      for g in ge:
          os.system("cp "+g+" "+g.replace("ge", "ge.inspacoin."))
      print(ge_comments)
      #need to substitute the below lines for their .h files in the appropriate places
      qhasmToC("ge_add.c", "ge_add.h", "ge.inspacoin._add.c")
      qhasmToC("ge_madd.c", "ge_madd.h", "ge.inspacoin._madd.c")
      qhasmToC("ge_sub.c", "ge_sub.h", "ge.inspacoin._sub.c")
      qhasmToC("ge_msub.c", "ge_msub.h", "ge.inspacoin._msub.c")
      qhasmToC("ge_p2_dbl.c", "ge_p2_dbl.h", "ge.inspacoin._p2_dbl.c")
      qhasmToC("ge_frombytes.c", "d.h", "ge.inspacoin._frombytes.c")
      qhasmToC("ge.inspacoin._frombytes.c", "sqrtm1.h", "ge.inspacoin._frombytes.c")
      qhasmToC("ge_p3_to_cached.c", "d2.h", "ge.inspacoin._p3_to_cached.c")
  
  
  
      #also ge_double_scalarmult needs base2.h for ge_precomp Bi
      #note, base2.h is a large file!
      #also in ge_scalarmult_base ge_precomp base needs base.h included
  
      qhasmToC("ge_double_scalarmult.c", "base2.h", "ge.inspacoin._double_scalarmult.c")
      qhasmToC("ge_scalarmult_base.c", "base.h", "ge.inspacoin._scalarmult_base.c")
      #qhasmToC("ge.inspacoin._scalarmult_base.c", "base.h", "ge.inspacoin._scalarmult_base.c")
      os.system("sed -i 's/ cmov/ ge_precomp_cmov/g' ge.inspacoin._scalarmult_base.c")
      os.system("cat ge.inspacoin.*.c | grep -v '^#include' > ge.inspacoin.c")
  
  
      print("making crypto-ops.c")
  
      #sqrtm1 things
  
      #comments
      with open("fe.inspacoin.comments", "w") as text_file:
              text_file.write(fe_comments)
      with open("ge.inspacoin.comments", "w") as text_file:
              text_file.write(ge_comments)
      with open("sc.inspacoin.comments", "w") as text_file:
              text_file.write(sc_comments)
      with open("xmr.inspacoin.comments", "w") as text_file:
              text_file.write(xmr_comments)
      with open("xmr.inspacoin.predeclarations", "w") as text_file:
              text_file.write(predeclarations)
  
  
      #license
      with open("inspacoin.license", "w") as text_file:
              text_file.write(license)
  
      #crypto-ops.c includes
      with open("crypto-ops.inspacoin.includes", "w") as text_file:
          text_file.write(crypto_ops_includes)
  
      #note you may have duplicates of load_3, load_4 and possibly some other functions ... 
      os.system("cat inspacoin.license crypto-ops.inspacoin.includes xmr.inspacoin.predeclarations fe.inspacoin.comments fe.inspacoin.c sc.inspacoin.comments sc.inspacoin.c ge.inspacoin.comments ge.inspacoin.c xmr.inspacoin.comments xmrSpecificOld.c > crypto-ops.c")
  
      #inspacoin specific header files
      #print("making crypto-ops-tmp.h")
      #os.system("cat fe.h ge.h sc.h |grep -v crypto_sign_ed25519 |grep -v fe.h > crypto-ops-tmp.h")
      #we'll just use the old header crypto-ops.h
  
      #replace crypto_ints
      os.system("sed -i 's/crypto_int32/int32_t/g' crypto-ops.c")
      os.system("sed -i 's/crypto_int64/int64_t/g' crypto-ops.c")
      os.system("sed -i 's/crypto_uint32/uint32_t/g' crypto-ops.c")
      os.system("sed -i 's/crypto_uint64/uint64_t/g' crypto-ops.c")
  
      #cleaning up 
      os.system("rm *inspacoin*")
  
      #inspacoin specific c files
  if a == "c":
      #turn the directory back into ref10
      os.system("rm *inspacoin*")
      os.system("rm crypto-ops.c")
  