normalizeFunctionName.cxx

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/*
 * Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration.
 */
#include "CxxUtils/normalizeFunctionName.h"
#include <cctype>
#include <cstring>
 
 
namespace CxxUtils {
 
 
std::string clean_allocator (std::string f)
{
  std::string::size_type ipos = 0;
  while ((ipos = f.find (", std::allocator", ipos)) != std::string::npos) {
    const char* p = f.c_str() + ipos + 16;
    while (isspace (*p)) ++p;
    if (*p == '<') {
      ++p;
      int nest = 1;
      while (nest > 0 && *p) {
        if (*p == '<')
          ++nest;
        else if (*p == '>')
          --nest;
        ++p;
      }
      if (nest == 0) {
        if (ipos > 0 && f[ipos-1] != '>') {
          while (isspace (*p)) ++p;
        }
        f.erase (ipos, p-f.c_str()-ipos);
        p = f.c_str() + ipos;
      }
    }
    ipos = p - f.c_str();
  }
  return f;
}
 
 
std::string munge_string_name (const std::string& str_in)
{
  std::string s = str_in;
 
  std::string::size_type ipos = 0;
  while ((ipos = s.find ("std::basic_string<", ipos)) != std::string::npos) {
    std::string::size_type beg = ipos;
    ipos += 18;
    int inest = 1;
    while (inest > 0 && ipos < s.size()) {
      if (s[ipos] == '<') ++inest;
      else if (s[ipos] == '>') --inest;
      ++ipos;
    }
    s.replace (beg, ipos-beg, "std::string");
    ipos = beg+11;
  }
  
  for (size_t i = 0; i < s.size(); i++) {
    if ((i == 0 || (s[i-1] != ':' && !isalnum(s[i-1]))) &&
        strncmp (s.c_str()+i, "string", 6) == 0 &&
        !isalnum(s[i+6]))
    {
      s.replace (i, 6, "std::string");
    }
  }
  return s;
}
 
 
std::string munge_punct (const std::string& str_in)
{
  std::string s = str_in;
  for (size_t i = 0; i < s.size()-1; i++) {
    if (s[i] == ' ' && (s[i+1] == '*' || s[i+1] == '&'))
      s.erase (i, 1);
  }
  return s;
}
 
 
std::string do_replace (std::string s,
                        const std::string& pat,
                        const std::string& rep)
{
  std::string::size_type ipos = 0;
  while ((ipos = s.find (pat, ipos)) != std::string::npos)
    s.replace (ipos, pat.size(), rep);
  return s;
}
 
 
std::string munge_names (const std::string& str_in)
{
  std::string s =
    do_replace (str_in, "SG::DataProxyStorageData::pointer", "void*");
  s = do_replace (s, "DPSD::pointer", "void*");
  s = do_replace (s, "SG::auxid_t", "unsigned long");
  s = do_replace (s, "auxid_t", "unsigned long");
  s = do_replace (s, "void* ", "void*");
  s = do_replace (s, "CLID", "unsigned int");
 
  if (s.compare (0, 8, "virtual ") == 0)
    s.erase (0, 8);
  return s;
}
 
 
std::string normalizeFunctionName (const std::string& fname)
{
  return munge_names (munge_punct (munge_string_name (clean_allocator (fname))));
}
 
 
} // namespace CxxUtils