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Diffstat (limited to '3rdParty/Boost/src/libs/program_options/src/cmdline.cpp')
-rw-r--r--3rdParty/Boost/src/libs/program_options/src/cmdline.cpp656
1 files changed, 656 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/libs/program_options/src/cmdline.cpp b/3rdParty/Boost/src/libs/program_options/src/cmdline.cpp
new file mode 100644
index 0000000..be31385
--- /dev/null
+++ b/3rdParty/Boost/src/libs/program_options/src/cmdline.cpp
@@ -0,0 +1,656 @@
+// Copyright Vladimir Prus 2002-2004.
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt
+// or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+#define BOOST_PROGRAM_OPTIONS_SOURCE
+#include <boost/program_options/config.hpp>
+
+#include <boost/config.hpp>
+
+#include <boost/program_options/detail/cmdline.hpp>
+#include <boost/program_options/errors.hpp>
+#include <boost/program_options/value_semantic.hpp>
+#include <boost/program_options/options_description.hpp>
+#include <boost/program_options/positional_options.hpp>
+#include <boost/throw_exception.hpp>
+
+#include <boost/bind.hpp>
+
+#include <string>
+#include <utility>
+#include <vector>
+#include <cassert>
+#include <cstring>
+#include <cctype>
+#include <climits>
+
+#include <cstdio>
+
+#include <iostream>
+
+namespace boost { namespace program_options {
+
+ using namespace std;
+ using namespace boost::program_options::command_line_style;
+
+ invalid_syntax::
+ invalid_syntax(const string& tokens, kind_t kind)
+ : error(error_message(kind).append(" in '").append(tokens).append("'"))
+ , m_tokens(tokens)
+ , m_kind(kind)
+ {}
+
+ string
+ invalid_syntax::error_message(kind_t kind)
+ {
+ // Initially, store the message in 'const char*' variable,
+ // to avoid conversion to string in all cases.
+ const char* msg;
+ switch(kind)
+ {
+ case long_not_allowed:
+ msg = "long options are not allowed";
+ break;
+ case long_adjacent_not_allowed:
+ msg = "parameters adjacent to long options not allowed";
+ break;
+ case short_adjacent_not_allowed:
+ msg = "parameters adjust to short options are not allowed";
+ break;
+ case empty_adjacent_parameter:
+ msg = "adjacent parameter is empty";
+ break;
+ case missing_parameter:
+ msg = "required parameter is missing";
+ break;
+ case extra_parameter:
+ msg = "extra parameter";
+ break;
+ case unrecognized_line:
+ msg = "unrecognized line";
+ break;
+ default:
+ msg = "unknown error";
+ }
+ return msg;
+ }
+
+ invalid_syntax::kind_t
+ invalid_syntax::kind() const
+ {
+ return m_kind;
+ }
+
+ const string&
+ invalid_syntax::tokens() const
+ {
+ return m_tokens;
+ }
+
+ invalid_command_line_syntax::
+ invalid_command_line_syntax(const string& tokens, kind_t kind)
+ : invalid_syntax(tokens, kind)
+ {}
+
+}}
+
+
+namespace boost { namespace program_options { namespace detail {
+
+ // vc6 needs this, but borland chokes when this is added.
+#if BOOST_WORKAROUND(_MSC_VER, < 1300)
+ using namespace std;
+ using namespace program_options;
+#endif
+
+
+ cmdline::cmdline(const vector<string>& args)
+ {
+ init(args);
+ }
+
+ cmdline::cmdline(int argc, const char*const * argv)
+ {
+#if defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)
+ vector<string> args;
+ copy(argv+1, argv+argc+!argc, inserter(args, args.end()));
+ init(args);
+#else
+ init(vector<string>(argv+1, argv+argc+!argc));
+#endif
+ }
+
+ void
+ cmdline::init(const vector<string>& args)
+ {
+ this->args = args;
+ m_style = command_line_style::default_style;
+ m_desc = 0;
+ m_positional = 0;
+ m_allow_unregistered = false;
+ }
+
+ void
+ cmdline::style(int style)
+ {
+ if (style == 0)
+ style = default_style;
+
+ check_style(style);
+ this->m_style = style_t(style);
+ }
+
+ void
+ cmdline::allow_unregistered()
+ {
+ this->m_allow_unregistered = true;
+ }
+
+ void
+ cmdline::check_style(int style) const
+ {
+ bool allow_some_long =
+ (style & allow_long) || (style & allow_long_disguise);
+
+ const char* error = 0;
+ if (allow_some_long &&
+ !(style & long_allow_adjacent) && !(style & long_allow_next))
+ error = "style disallows parameters for long options";
+
+ if (!error && (style & allow_short) &&
+ !(style & short_allow_adjacent) && !(style & short_allow_next))
+ error = "style disallows parameters for short options";
+
+ if (!error && (style & allow_short) &&
+ !(style & allow_dash_for_short) && !(style & allow_slash_for_short))
+ error = "style disallows all characters for short options";
+
+ if (error)
+ boost::throw_exception(invalid_command_line_style(error));
+
+ // Need to check that if guessing and long disguise are enabled
+ // -f will mean the same as -foo
+ }
+
+ bool
+ cmdline::is_style_active(style_t style) const
+ {
+ return ((m_style & style) ? true : false);
+ }
+
+ void
+ cmdline::set_options_description(const options_description& desc)
+ {
+ m_desc = &desc;
+ }
+
+ void
+ cmdline::set_positional_options(
+ const positional_options_description& positional)
+ {
+ m_positional = &positional;
+ }
+
+
+ vector<option>
+ cmdline::run()
+ {
+ // The parsing is done by having a set of 'style parsers'
+ // and trying then in order. Each parser is passed a vector
+ // of unparsed tokens and can consume some of them (by
+ // removing elements on front) and return a vector of options.
+ //
+ // We try each style parser in turn, untill some input
+ // is consumed. The returned vector of option may contain the
+ // result of just syntactic parsing of token, say --foo will
+ // be parsed as option with name 'foo', and the style parser
+ // is not required to care if that option is defined, and how
+ // many tokens the value may take.
+ // So, after vector is returned, we validate them.
+ assert(m_desc);
+
+ vector<style_parser> style_parsers;
+
+ if (m_style_parser)
+ style_parsers.push_back(m_style_parser);
+
+ if (m_additional_parser)
+ style_parsers.push_back(
+ boost::bind(&cmdline::handle_additional_parser, this, _1));
+
+ if (m_style & allow_long)
+ style_parsers.push_back(
+ boost::bind(&cmdline::parse_long_option, this, _1));
+
+ if ((m_style & allow_long_disguise))
+ style_parsers.push_back(
+ boost::bind(&cmdline::parse_disguised_long_option, this, _1));
+
+ if ((m_style & allow_short) && (m_style & allow_dash_for_short))
+ style_parsers.push_back(
+ boost::bind(&cmdline::parse_short_option, this, _1));
+
+ if ((m_style & allow_short) && (m_style & allow_slash_for_short))
+ style_parsers.push_back(boost::bind(&cmdline::parse_dos_option, this, _1));
+
+ style_parsers.push_back(boost::bind(&cmdline::parse_terminator, this, _1));
+
+ vector<option> result;
+ while(!args.empty())
+ {
+ bool ok = false;
+ for(unsigned i = 0; i < style_parsers.size(); ++i)
+ {
+ unsigned current_size = args.size();
+ vector<option> next = style_parsers[i](args);
+
+ // Check that option names
+ // are valid, and that all values are in place.
+ if (!next.empty())
+ {
+ vector<string> e;
+ for(unsigned k = 0; k < next.size()-1; ++k) {
+ finish_option(next[k], e, style_parsers);
+ }
+ // For the last option, pass the unparsed tokens
+ // so that they can be added to next.back()'s values
+ // if appropriate.
+ finish_option(next.back(), args, style_parsers);
+ for (unsigned j = 0; j < next.size(); ++j)
+ result.push_back(next[j]);
+ }
+
+ if (args.size() != current_size) {
+ ok = true;
+ break;
+ }
+ }
+
+ if (!ok) {
+ option opt;
+ opt.value.push_back(args[0]);
+ opt.original_tokens.push_back(args[0]);
+ result.push_back(opt);
+ args.erase(args.begin());
+ }
+ }
+
+ /* If an key option is followed by a positional option,
+ can can consume more tokens (e.g. it's multitoke option),
+ give those tokens to it. */
+ vector<option> result2;
+ for (unsigned i = 0; i < result.size(); ++i)
+ {
+ result2.push_back(result[i]);
+ option& opt = result2.back();
+
+ if (opt.string_key.empty())
+ continue;
+
+ const option_description* xd =
+ m_desc->find_nothrow(opt.string_key,
+ is_style_active(allow_guessing),
+ is_style_active(long_case_insensitive),
+ is_style_active(short_case_insensitive));
+ if (!xd)
+ continue;
+
+ unsigned min_tokens = xd->semantic()->min_tokens();
+ unsigned max_tokens = xd->semantic()->max_tokens();
+ if (min_tokens < max_tokens && opt.value.size() < max_tokens)
+ {
+ // This option may grab some more tokens.
+ // We only allow to grab tokens that are not already
+ // recognized as key options.
+
+ int can_take_more = max_tokens - opt.value.size();
+ unsigned j = i+1;
+ for (; can_take_more && j < result.size(); --can_take_more, ++j)
+ {
+ option& opt2 = result[j];
+ if (!opt2.string_key.empty())
+ break;
+
+ if (opt2.position_key == INT_MAX)
+ {
+ // We use INT_MAX to mark positional options that
+ // were found after the '--' terminator and therefore
+ // should stay positional forever.
+ break;
+ }
+
+ assert(opt2.value.size() == 1);
+
+ opt.value.push_back(opt2.value[0]);
+
+ assert(opt2.original_tokens.size() == 1);
+
+ opt.original_tokens.push_back(opt2.original_tokens[0]);
+ }
+ i = j-1;
+ }
+ }
+ result.swap(result2);
+
+
+ // Assign position keys to positional options.
+ int position_key = 0;
+ for(unsigned i = 0; i < result.size(); ++i) {
+ if (result[i].string_key.empty())
+ result[i].position_key = position_key++;
+ }
+
+ if (m_positional)
+ {
+ unsigned position = 0;
+ for (unsigned i = 0; i < result.size(); ++i) {
+ option& opt = result[i];
+ if (opt.position_key != -1) {
+ if (position >= m_positional->max_total_count())
+ {
+ boost::throw_exception(too_many_positional_options_error());
+ }
+ opt.string_key = m_positional->name_for_position(position);
+ ++position;
+ }
+ }
+ }
+
+ // set case sensitive flag
+ for (unsigned i = 0; i < result.size(); ++i) {
+ if (result[i].string_key.size() > 2 ||
+ (result[i].string_key.size() > 1 && result[i].string_key[0] != '-'))
+ {
+ // it is a long option
+ result[i].case_insensitive = is_style_active(long_case_insensitive);
+ }
+ else
+ {
+ // it is a short option
+ result[i].case_insensitive = is_style_active(short_case_insensitive);
+ }
+ }
+
+ return result;
+ }
+
+ void
+ cmdline::finish_option(option& opt,
+ vector<string>& other_tokens,
+ const vector<style_parser>& style_parsers)
+ {
+ if (opt.string_key.empty())
+ return;
+
+ // First check that the option is valid, and get its description.
+ const option_description* xd = m_desc->find_nothrow(opt.string_key,
+ is_style_active(allow_guessing),
+ is_style_active(long_case_insensitive),
+ is_style_active(short_case_insensitive));
+
+ if (!xd)
+ {
+ if (m_allow_unregistered) {
+ opt.unregistered = true;
+ return;
+ } else {
+ boost::throw_exception(unknown_option(opt.string_key));
+ }
+ }
+ const option_description& d = *xd;
+
+ // Canonize the name
+ opt.string_key = d.key(opt.string_key);
+
+ // We check that the min/max number of tokens for the option
+ // agrees with the number of tokens we have. The 'adjacent_value'
+ // (the value in --foo=1) counts as a separate token, and if present
+ // must be consumed. The following tokens on the command line may be
+ // left unconsumed.
+
+ // We don't check if those tokens look like option, or not!
+
+ unsigned min_tokens = d.semantic()->min_tokens();
+ unsigned max_tokens = d.semantic()->max_tokens();
+
+ unsigned present_tokens = opt.value.size() + other_tokens.size();
+
+ if (present_tokens >= min_tokens)
+ {
+ if (!opt.value.empty() && max_tokens == 0)
+ {
+ boost::throw_exception(invalid_command_line_syntax(opt.string_key,
+ invalid_command_line_syntax::extra_parameter));
+ }
+
+ // If an option wants, at minimum, N tokens, we grab them there,
+ // when adding these tokens as values to current option we check
+ // if they look like options
+ if (opt.value.size() <= min_tokens)
+ {
+ min_tokens -= opt.value.size();
+ }
+ else
+ {
+ min_tokens = 0;
+ }
+
+ // Everything's OK, move the values to the result.
+ for(;!other_tokens.empty() && min_tokens--; )
+ {
+ // check if extra parameter looks like a known option
+ // we use style parsers to check if it is syntactically an option,
+ // additionally we check if an option_description exists
+ vector<option> followed_option;
+ vector<string> next_token(1, other_tokens[0]);
+ for (unsigned i = 0; followed_option.empty() && i < style_parsers.size(); ++i)
+ {
+ followed_option = style_parsers[i](next_token);
+ }
+ if (!followed_option.empty())
+ {
+ const option_description* od = m_desc->find_nothrow(other_tokens[0],
+ is_style_active(allow_guessing),
+ is_style_active(long_case_insensitive),
+ is_style_active(short_case_insensitive));
+ if (od)
+ boost::throw_exception(invalid_command_line_syntax(opt.string_key,
+ invalid_command_line_syntax::missing_parameter));
+ }
+ opt.value.push_back(other_tokens[0]);
+ opt.original_tokens.push_back(other_tokens[0]);
+ other_tokens.erase(other_tokens.begin());
+ }
+ }
+ else
+ {
+ boost::throw_exception(invalid_command_line_syntax(opt.string_key,
+ invalid_command_line_syntax::missing_parameter));
+
+ }
+ }
+
+ vector<option>
+ cmdline::parse_long_option(vector<string>& args)
+ {
+ vector<option> result;
+ const string& tok = args[0];
+ if (tok.size() >= 3 && tok[0] == '-' && tok[1] == '-')
+ {
+ string name, adjacent;
+
+ string::size_type p = tok.find('=');
+ if (p != tok.npos)
+ {
+ name = tok.substr(2, p-2);
+ adjacent = tok.substr(p+1);
+ if (adjacent.empty())
+ boost::throw_exception( invalid_command_line_syntax(name,
+ invalid_command_line_syntax::empty_adjacent_parameter) );
+ }
+ else
+ {
+ name = tok.substr(2);
+ }
+ option opt;
+ opt.string_key = name;
+ if (!adjacent.empty())
+ opt.value.push_back(adjacent);
+ opt.original_tokens.push_back(tok);
+ result.push_back(opt);
+ args.erase(args.begin());
+ }
+ return result;
+ }
+
+
+ vector<option>
+ cmdline::parse_short_option(vector<string>& args)
+ {
+ const string& tok = args[0];
+ if (tok.size() >= 2 && tok[0] == '-' && tok[1] != '-')
+ {
+ vector<option> result;
+
+ string name = tok.substr(0,2);
+ string adjacent = tok.substr(2);
+
+ // Short options can be 'grouped', so that
+ // "-d -a" becomes "-da". Loop, processing one
+ // option at a time. We exit the loop when either
+ // we've processed all the token, or when the remainder
+ // of token is considered to be value, not further grouped
+ // option.
+ for(;;) {
+ const option_description* d
+ = m_desc->find_nothrow(name, false, false,
+ is_style_active(short_case_insensitive));
+
+ // FIXME: check for 'allow_sticky'.
+ if (d && (m_style & allow_sticky) &&
+ d->semantic()->max_tokens() == 0 && !adjacent.empty()) {
+ // 'adjacent' is in fact further option.
+ option opt;
+ opt.string_key = name;
+ result.push_back(opt);
+
+ if (adjacent.empty())
+ {
+ args.erase(args.begin());
+ break;
+ }
+
+ name = string("-") + adjacent[0];
+ adjacent.erase(adjacent.begin());
+ } else {
+
+ option opt;
+ opt.string_key = name;
+ opt.original_tokens.push_back(tok);
+ if (!adjacent.empty())
+ opt.value.push_back(adjacent);
+ result.push_back(opt);
+ args.erase(args.begin());
+ break;
+ }
+ }
+ return result;
+ }
+ return vector<option>();
+ }
+
+ vector<option>
+ cmdline::parse_dos_option(vector<string>& args)
+ {
+ vector<option> result;
+ const string& tok = args[0];
+ if (tok.size() >= 2 && tok[0] == '/')
+ {
+ string name = "-" + tok.substr(1,1);
+ string adjacent = tok.substr(2);
+
+ option opt;
+ opt.string_key = name;
+ if (!adjacent.empty())
+ opt.value.push_back(adjacent);
+ opt.original_tokens.push_back(tok);
+ result.push_back(opt);
+ args.erase(args.begin());
+ }
+ return result;
+ }
+
+ vector<option>
+ cmdline::parse_disguised_long_option(vector<string>& args)
+ {
+ const string& tok = args[0];
+ if (tok.size() >= 2 &&
+ ((tok[0] == '-' && tok[1] != '-') ||
+ ((m_style & allow_slash_for_short) && tok[0] == '/')))
+ {
+ if (m_desc->find_nothrow(tok.substr(1, tok.find('=')-1),
+ is_style_active(allow_guessing),
+ is_style_active(long_case_insensitive),
+ is_style_active(short_case_insensitive)))
+ {
+ args[0].insert(0, "-");
+ if (args[0][1] == '/')
+ args[0][1] = '-';
+ return parse_long_option(args);
+ }
+ }
+ return vector<option>();
+ }
+
+ vector<option>
+ cmdline::parse_terminator(vector<string>& args)
+ {
+ vector<option> result;
+ const string& tok = args[0];
+ if (tok == "--")
+ {
+ for(unsigned i = 1; i < args.size(); ++i)
+ {
+ option opt;
+ opt.value.push_back(args[i]);
+ opt.original_tokens.push_back(args[i]);
+ opt.position_key = INT_MAX;
+ result.push_back(opt);
+ }
+ args.clear();
+ }
+ return result;
+ }
+
+ vector<option>
+ cmdline::handle_additional_parser(vector<string>& args)
+ {
+ vector<option> result;
+ pair<string, string> r = m_additional_parser(args[0]);
+ if (!r.first.empty()) {
+ option next;
+ next.string_key = r.first;
+ if (!r.second.empty())
+ next.value.push_back(r.second);
+ result.push_back(next);
+ args.erase(args.begin());
+ }
+ return result;
+ }
+
+ void
+ cmdline::set_additional_parser(additional_parser p)
+ {
+ m_additional_parser = p;
+ }
+
+ void
+ cmdline::extra_style_parser(style_parser s)
+ {
+ m_style_parser = s;
+ }
+
+
+
+}}}