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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nl_parser.c
*
*/
#include "nl_parser.h"
#include "nl_factory.h"
//#undef NL_VERBOSE_OUT
//#define NL_VERBOSE_OUT(x) printf x
// ----------------------------------------------------------------------------------------
// A netlist parser
// ----------------------------------------------------------------------------------------
ATTR_COLD void netlist_parser::verror(pstring msg, int line_num, pstring line)
{
m_setup.netlist().error("line %d: error: %s\n\t\t%s\n", line_num,
msg.cstr(), line.cstr());
//throw error;
}
bool netlist_parser::parse(const char *buf, const pstring nlname)
{
ppreprocessor prepro;
pstring processed = prepro.process(buf);
m_buf = processed.cstr();
reset(m_buf);
set_identifier_chars("abcdefghijklmnopqrstuvwvxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890_.-");
set_number_chars("01234567890eE-."); //FIXME: processing of numbers
char ws[5];
ws[0] = ' ';
ws[1] = 9;
ws[2] = 10;
ws[3] = 13;
ws[4] = 0;
set_whitespace(ws);
set_comment("/*", "*/", "//");
m_tok_param_left = register_token("(");
m_tok_param_right = register_token(")");
m_tok_comma = register_token(",");
m_tok_ALIAS = register_token("ALIAS");
m_tok_NET_C = register_token("NET_C");
m_tok_PARAM = register_token("PARAM");
m_tok_NET_MODEL = register_token("NET_MODEL");
m_tok_INCLUDE = register_token("INCLUDE");
m_tok_SUBMODEL = register_token("SUBMODEL");
m_tok_NETLIST_START = register_token("NETLIST_START");
m_tok_NETLIST_END = register_token("NETLIST_END");
bool in_nl = false;
while (true)
{
token_t token = get_token();
if (token.is_type(ENDOFFILE))
{
return false;
//error("EOF while searching for <%s>", nlname.cstr());
}
if (token.is(m_tok_NETLIST_END))
{
require_token(m_tok_param_left);
if (!in_nl)
error("Unexpected NETLIST_END");
else
{
in_nl = false;
}
require_token(m_tok_param_right);
}
else if (token.is(m_tok_NETLIST_START))
{
if (in_nl)
error("Unexpected NETLIST_START");
require_token(m_tok_param_left);
token_t name = get_token();
require_token(m_tok_param_right);
if (name.str() == nlname || nlname == "")
{
parse_netlist(name.str());
return true;
} else
in_nl = true;
}
}
}
void netlist_parser::parse_netlist(ATTR_UNUSED const pstring &nlname)
{
while (true)
{
token_t token = get_token();
if (token.is_type(ENDOFFILE))
return;
require_token(m_tok_param_left);
NL_VERBOSE_OUT(("Parser: Device: %s\n", token.str().cstr()));
if (token.is(m_tok_ALIAS))
net_alias();
else if (token.is(m_tok_NET_C))
net_c();
else if (token.is(m_tok_PARAM))
netdev_param();
else if (token.is(m_tok_NET_MODEL))
net_model();
else if (token.is(m_tok_SUBMODEL))
net_submodel();
else if (token.is(m_tok_INCLUDE))
net_include();
else if (token.is(m_tok_NETLIST_END))
{
netdev_netlist_end();
return;
}
else
device(token.str());
}
}
void netlist_parser::netdev_netlist_start()
{
// don't do much
token_t name = get_token();
require_token(m_tok_param_right);
}
void netlist_parser::netdev_netlist_end()
{
// don't do much
require_token(m_tok_param_right);
}
void netlist_parser::net_model()
{
// don't do much
pstring model = get_string();
m_setup.register_model(model);
require_token(m_tok_param_right);
}
void netlist_parser::net_submodel()
{
// don't do much
pstring name = get_identifier();
require_token(m_tok_comma);
pstring model = get_identifier();
require_token(m_tok_param_right);
m_setup.namespace_push(name);
netlist_parser subparser(m_setup);
subparser.parse(m_buf, model);
m_setup.namespace_pop();
}
void netlist_parser::net_include()
{
// don't do much
pstring name = get_identifier();
require_token(m_tok_param_right);
netlist_parser subparser(m_setup);
subparser.parse(m_buf, name);
}
void netlist_parser::net_alias()
{
pstring alias = get_identifier();
require_token(m_tok_comma);
pstring out = get_identifier();
require_token(m_tok_param_right);
NL_VERBOSE_OUT(("Parser: Alias: %s %s\n", alias.cstr(), out.cstr()));
m_setup.register_alias(alias, out);
}
void netlist_parser::net_c()
{
pstring first = get_identifier();
require_token(m_tok_comma);
while (true)
{
pstring t1 = get_identifier();
m_setup.register_link(first , t1);
NL_VERBOSE_OUT(("Parser: Connect: %s %s\n", last.cstr(), t1.cstr()));
token_t n = get_token();
if (n.is(m_tok_param_right))
break;
if (!n.is(m_tok_comma))
error("expected a comma, found <%s>", n.str().cstr());
}
}
void netlist_parser::netdev_param()
{
pstring param;
nl_double val;
param = get_identifier();
require_token(m_tok_comma);
val = eval_param(get_token());
NL_VERBOSE_OUT(("Parser: Param: %s %f\n", param.cstr(), val));
m_setup.register_param(param, val);
require_token(m_tok_param_right);
}
void netlist_parser::device(const pstring &dev_type)
{
pstring devname;
net_device_t_base_factory *f = m_setup.factory().factory_by_name(dev_type, m_setup);
netlist_device_t *dev;
nl_util::pstring_list termlist = f->term_param_list();
nl_util::pstring_list def_params = f->def_params();
std::size_t cnt;
devname = get_identifier();
dev = f->Create();
m_setup.register_dev(dev, devname);
NL_VERBOSE_OUT(("Parser: IC: %s\n", devname.cstr()));
cnt = 0;
while (cnt < def_params.size())
{
pstring paramfq = devname + "." + def_params[cnt];
NL_VERBOSE_OUT(("Defparam: %s\n", paramfq.cstr()));
require_token(m_tok_comma);
token_t tok = get_token();
if (tok.is_type(STRING))
{
m_setup.register_param(paramfq, tok.str());
}
else
{
nl_double val = eval_param(tok);
m_setup.register_param(paramfq, val);
}
cnt++;
}
token_t tok = get_token();
cnt = 0;
while (tok.is(m_tok_comma) && cnt < termlist.size())
{
pstring output_name = get_identifier();
m_setup.register_link(devname + "." + termlist[cnt], output_name);
cnt++;
tok = get_token();
}
if (cnt != termlist.size())
m_setup.netlist().error("netlist: input count mismatch for %s - expected %" SIZETFMT " found %" SIZETFMT "\n", devname.cstr(), termlist.size(), cnt);
require_token(tok, m_tok_param_right);
}
// ----------------------------------------------------------------------------------------
// private
// ----------------------------------------------------------------------------------------
nl_double netlist_parser::eval_param(const token_t tok)
{
static const char *macs[6] = {"", "RES_K", "RES_M", "CAP_U", "CAP_N", "CAP_P"};
static nl_double facs[6] = {1, 1e3, 1e6, 1e-6, 1e-9, 1e-12};
int i;
int f=0;
bool e;
nl_double ret;
pstring val;
//printf("param %s\n", tok.m_token.cstr());
for (i=1; i<6;i++)
if (tok.str().equals(macs[i]))
f = i;
if (f>0)
{
require_token(m_tok_param_left);
val = get_identifier();
}
else
val = tok.str();
ret = val.as_double(&e);
if (e)
error("Error with parameter ...\n");
if (f>0)
require_token(m_tok_param_right);
return ret * facs[f];
}
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