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pip-tools==3.8.0                        # BSD   Keep this in sync with Makefile's PIP_TOOLS_VERSION

aenum>= 2.1.2; python_version < '3.6'   # BSD
cffi                                    # MIT
cryptography!=2.0                       # BSD/Apache-2.0
deprecation>=2.0.6                      # Apache-2.0
faulthandler; python_version < '3.3' #  # BSD License (2 clause)
flake8                                  # MIT
ipaddress; python_version < '3.3'       # PSF
parameterized>=0.6.1                    # BSD
pexpect                                 # ISC
psutil                                  # BSD
pycodestyle                             # MIT (Expat license)       https://pypi.org/project/pycodestyle/
scapy==2.4.0; python_version >= '2.7' or python_version >= '3.4'    # GPL2  https://github.com/secdev/scapy/blob/master/LICENSE
six                                     # MIT
subprocess32                            # PSF
syslog_rfc5424_parser>=0.3.1            # ISC
objgraph                                # MIT
pympler                                 # Apache-2.0
* Literal.Number.Hex */ .highlight .mi { color: #ae81ff } /* Literal.Number.Integer */ .highlight .mo { color: #ae81ff } /* Literal.Number.Oct */ .highlight .sa { color: #e6db74 } /* Literal.String.Affix */ .highlight .sb { color: #e6db74 } /* Literal.String.Backtick */ .highlight .sc { color: #e6db74 } /* Literal.String.Char */ .highlight .dl { color: #e6db74 } /* Literal.String.Delimiter */ .highlight .sd { color: #e6db74 } /* Literal.String.Doc */ .highlight .s2 { color: #e6db74 } /* Literal.String.Double */ .highlight .se { color: #ae81ff } /* Literal.String.Escape */ .highlight .sh { color: #e6db74 } /* Literal.String.Heredoc */ .highlight .si { color: #e6db74 } /* Literal.String.Interpol */ .highlight .sx { color: #e6db74 } /* Literal.String.Other */ .highlight .sr { color: #e6db74 } /* Literal.String.Regex */ .highlight .s1 { color: #e6db74 } /* Literal.String.Single */ .highlight .ss { color: #e6db74 } /* Literal.String.Symbol */ .highlight .bp { color: #f8f8f2 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #a6e22e } /* Name.Function.Magic */ .highlight .vc { color: #f8f8f2 } /* Name.Variable.Class */ .highlight .vg { color: #f8f8f2 } /* Name.Variable.Global */ .highlight .vi { color: #f8f8f2 } /* Name.Variable.Instance */ .highlight .vm { color: #f8f8f2 } /* Name.Variable.Magic */ .highlight .il { color: #ae81ff } /* Literal.Number.Integer.Long */ } @media (prefers-color-scheme: light) { .highlight .hll { background-color: #ffffcc } .highlight .c { color: #888888 } /* Comment */ .highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */ .highlight .k { color: #008800; font-weight: bold } /* Keyword */ .highlight .ch { color: #888888 } /* Comment.Hashbang */ .highlight .cm { color: #888888 } /* Comment.Multiline */ .highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ .highlight .cpf { color: #888888 } /* Comment.PreprocFile */ .highlight .c1 { color: #888888 } /* Comment.Single */ .highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ .highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */ .highlight .ge { font-style: italic } /* Generic.Emph */ .highlight .gr { color: #aa0000 } /* Generic.Error */ .highlight .gh { color: #333333 } /* Generic.Heading */ .highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ } 
/*
  macros.c - a simple macro expander

  Copyright (c) 2010, 2014 Cisco and/or its affiliates.

  * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

#include <vppinfra/macros.h>

static inline int
macro_isalnum (i8 c)
{
  if ((c >= 'A' && c <= 'Z')
      || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') || (c == '_'))
    return 1;
  return 0;
}

static i8 *
builtin_eval (macro_main_t * mm, i8 * varname, i32 complain)
{
  uword *p;
  i8 *(*fp) (macro_main_t *, i32);

  p = hash_get_mem (mm->the_builtin_eval_hash, varname);
  if (p == 0)
    return 0;
  fp = (void *) (p[0]);
  return (*fp) (mm, complain);
}

int
clib_macro_unset (macro_main_t * mm, char *name)
{
  hash_pair_t *p;
  u8 *key, *value;

  p = hash_get_pair (mm->the_value_table_hash, name);

  if (p == 0)
    return 1;

  key = (u8 *) (p->key);
  value = (u8 *) (p->value[0]);
  hash_unset_mem (mm->the_value_table_hash, name);

  vec_free (value);
  vec_free (key);
  return 0;
}

int
clib_macro_set_value (macro_main_t * mm, char *name, char *value)
{
  u8 *key_copy, *value_copy;
  int rv;

  rv = clib_macro_unset (mm, name);

  key_copy = format (0, "%s%c", name, 0);
  value_copy = format (0, "%s%c", value, 0);

  hash_set_mem (mm->the_value_table_hash, key_copy, value_copy);
  return rv;
}

i8 *
clib_macro_get_value (macro_main_t * mm, char *name)
{
  uword *p;

  p = hash_get_mem (mm->the_value_table_hash, name);
  if (p)
    return (i8 *) (p[0]);
  else
    return 0;
}

/*
 * eval: takes a string, returns a vector.
 * looks up $foobar in the variable table.
 */
i8 *
clib_macro_eval (macro_main_t * mm, i8 * s, i32 complain)
{
  i8 *rv = 0;
  i8 *varname, *varvalue;
  i8 *ts;

  while (*s)
    {
      switch (*s)
	{
	case '\\':
	  s++;
	  /* fallthrough */

	default:
	  vec_add1 (rv, *s);
	  s++;
	  break;

	case '$':
	  s++;
	  varname = 0;
	  /*
	   * Make vector with variable name in it.
	   */
	  while (*s && (macro_isalnum (*s) || (*s == '_') || (*s == '(')))
	    {

	      /* handle $(foo) */
	      if (*s == '(')
		{
		  s++;		/* skip '(' */
		  while (*s && *s != ')')
		    {
		      vec_add1 (varname, *s);
		      s++;
		    }
		  if (*s)
		    s++;	/* skip ')' */
		  break;
		}
	      vec_add1 (varname, *s);
	      s++;
	    }
	  /* null terminate */
	  vec_add1 (varname, 0);
	  /* Look for a builtin, e.g. $my_hostname */
	  if (!(varvalue = builtin_eval (mm, varname, complain)))
	    {
	      /* Look in value table */
	      if (!varvalue)
		{
		  i8 *tmp = clib_macro_get_value (mm, (char *) varname);
		  if (tmp)
		    varvalue = (i8 *) format (0, "%s%c", tmp, 0);
		}
#ifdef CLIB_UNIX
	      /* Look in environment. */
	      if (!varvalue)
		{
		  char *tmp = getenv ((char *) varname);
		  if (tmp)
		    varvalue = (i8 *) format (0, "%s%c", tmp, 0);
		}
#endif /* CLIB_UNIX */
	    }
	  if (varvalue)
	    {
	      /* recursively evaluate */
	      ts = clib_macro_eval (mm, varvalue, complain);
	      vec_free (varvalue);
	      /* add results to answer */
	      vec_append (rv, ts);
	      /* Remove NULL termination or the results are sad */
	      _vec_len (rv) = vec_len (rv) - 1;
	      vec_free (ts);
	    }
	  else
	    {
	      if (complain)
		clib_warning ("Undefined Variable Reference: %s\n", varname);
	      vec_append (rv, format (0, "UNSET "));
	      _vec_len (rv) = vec_len (rv) - 1;

	    }
	  vec_free (varname);
	}
    }
  vec_add1 (rv, 0);
  return (rv);
}

/*
 * eval: takes a string, returns a vector.
 * looks up $foobar in the variable table.
 */
i8 *
clib_macro_eval_dollar (macro_main_t * mm, i8 * s, i32 complain)
{
  i8 *s2;
  i8 *rv;

  s2 = (i8 *) format (0, "$(%s)%c", s, 0);
  rv = clib_macro_eval (mm, s2, complain);
  vec_free (s2);
  return (rv);
}

void
clib_macro_add_builtin (macro_main_t * mm, char *name, void *eval_fn)
{
  hash_set_mem (mm->the_builtin_eval_hash, name, (uword) eval_fn);
}

#ifdef CLIB_UNIX
static i8 *
eval_hostname (macro_main_t * mm, i32 complain)
{
  char tmp[128];
  if (gethostname (tmp, sizeof (tmp)))
    return ((i8 *) format (0, "gethostname-error%c", 0));
  return ((i8 *) format (0, "%s%c", tmp, 0));
}
#endif

void
clib_macro_init (macro_main_t * mm)
{
  if (mm->the_builtin_eval_hash != 0)
    {
      clib_warning ("mm %p already initialized", mm);
      return;
    }

  mm->the_builtin_eval_hash = hash_create_string (0, sizeof (uword));
  mm->the_value_table_hash = hash_create_string (0, sizeof (uword));

#ifdef CLIB_UNIX
  hash_set_mem (mm->the_builtin_eval_hash, "hostname", (uword) eval_hostname);
#endif
}

void
clib_macro_free (macro_main_t * mm)
{
  hash_pair_t *p;
  u8 **strings_to_free = 0;
  int i;

  hash_free (mm->the_builtin_eval_hash);

  /* *INDENT-OFF* */
  hash_foreach_pair (p, mm->the_value_table_hash,
  ({
    vec_add1 (strings_to_free, (u8 *) (p->key));
    vec_add1 (strings_to_free, (u8 *) (p->value[0]));
  }));
  /* *INDENT-ON* */

  for (i = 0; i < vec_len (strings_to_free); i++)
    vec_free (strings_to_free[i]);
  vec_free (strings_to_free);
  hash_free (mm->the_value_table_hash);
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */