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// Copyright (C) 2004 Graydon Hoare <graydon@pobox.com>
//
// This program is made available under the GNU GPL version 2.0 or
// greater. See the accompanying file COPYING for details.
//
// This program is distributed WITHOUT ANY WARRANTY; without even the
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE.
#include <iostream>
#include <sstream>
#include <string>
#include <cctype>
#include <cstdlib>
#include "basic_io.hh"
#include "sanity.hh"
#include "vocab.hh"
using std::logic_error;
using std::make_pair;
using std::pair;
using std::string;
using std::vector;
// This file provides parsing and printing primitives used by the
// higher level parser and printer routines for the datatypes cset,
// roster/marking_map and revision.
void basic_io::input_source::err(string const & s)
{
E(false,
F("parsing a %s at %d:%d:E: %s") % name % line % col % s);
}
void basic_io::tokenizer::err(string const & s)
{
in.err(s);
}
string
basic_io::escape(string const & s)
{
string escaped;
escaped.reserve(s.size() + 8);
escaped += "\"";
for (string::const_iterator i = s.begin(); i != s.end(); ++i)
{
switch (*i)
{
case '\\':
case '"':
escaped += '\\';
default:
escaped += *i;
}
}
escaped += "\"";
return escaped;
}
basic_io::stanza::stanza() : indent(0)
{}
void basic_io::stanza::push_hex_pair(symbol const & k, hexenc<id> const & v)
{
entries.push_back(make_pair(k, "[" + v() + "]"));
if (k().size() > indent)
indent = k().size();
}
void basic_io::stanza::push_hex_triple(symbol const & k,
string const & n,
hexenc<id> const & v)
{
entries.push_back(make_pair(k, escape(n) + " " + "[" + v() + "]"));
if (k().size() > indent)
indent = k().size();
}
void basic_io::stanza::push_str_pair(symbol const & k, string const & v)
{
entries.push_back(make_pair(k, escape(v)));
if (k().size() > indent)
indent = k().size();
}
void basic_io::stanza::push_file_pair(symbol const & k, file_path const & v)
{
push_str_pair(k, v.as_internal());
}
void basic_io::stanza::push_str_multi(symbol const & k,
vector<string> const & v)
{
string val;
bool first = true;
for (vector<string>::const_iterator i = v.begin();
i != v.end(); ++i)
{
if (!first)
val += " ";
val += escape(*i);
first = false;
}
entries.push_back(make_pair(k, val));
if (k().size() > indent)
indent = k().size();
}
void basic_io::stanza::push_str_triple(symbol const & k,
string const & n,
string const & v)
{
entries.push_back(make_pair(k, escape(n) + " " + escape(v)));
if (k().size() > indent)
indent = k().size();
}
string basic_io::printer::buf;
int basic_io::printer::count;
basic_io::printer::printer()
{
I(count == 0);
count++;
buf.clear();
}
basic_io::printer::~printer()
{
count--;
}
void basic_io::printer::print_stanza(stanza const & st)
{
if (LIKELY(!buf.empty()))
buf += '\n';
for (vector<pair<symbol, string> >::const_iterator i = st.entries.begin();
i != st.entries.end(); ++i)
{
for (size_t k = i->first().size(); k < st.indent; ++k)
buf += ' ';
buf.append(i->first());
buf += ' ';
buf.append(i->second);
buf += '\n';
}
}
void basic_io::parser::err(string const & s)
{
tok.err(s);
}
string basic_io::parser::tt2str(token_type tt)
{
switch (tt)
{
case basic_io::TOK_STRING:
return "TOK_STRING";
case basic_io::TOK_SYMBOL:
return "TOK_SYMBOL";
case basic_io::TOK_HEX:
return "TOK_HEX";
case basic_io::TOK_NONE:
return "TOK_NONE";
}
return "TOK_UNKNOWN";
}
// Local Variables:
// mode: C++
// fill-column: 76
// c-file-style: "gnu"
// indent-tabs-mode: nil
// End:
// vim: et:sw=2:sts=2:ts=2:cino=>2s,{s,\:s,+s,t0,g0,^-2,e-2,n-2,p2s,(0,=s:
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