872 lines
40 KiB
C++
872 lines
40 KiB
C++
#include "PlaceholderParser.hpp"
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#include <cstring>
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#include <ctime>
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#include <iomanip>
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#include <sstream>
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#ifdef _MSC_VER
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#include <stdlib.h> // provides **_environ
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#else
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#include <unistd.h> // provides **environ
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#endif
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#ifdef __APPLE__
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#include <crt_externs.h>
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#undef environ
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#define environ (*_NSGetEnviron())
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#else
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#ifdef _MSC_VER
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#define environ _environ
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#else
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extern char **environ;
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#endif
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#endif
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#include <boost/algorithm/string.hpp>
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// Spirit v2.5 allows you to suppress automatic generation
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// of predefined terminals to speed up complation. With
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// BOOST_SPIRIT_NO_PREDEFINED_TERMINALS defined, you are
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// responsible in creating instances of the terminals that
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// you need (e.g. see qi::uint_type uint_ below).
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#define BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
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#define BOOST_RESULT_OF_USE_DECLTYPE
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#define BOOST_SPIRIT_USE_PHOENIX_V3
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#include <boost/config/warning_disable.hpp>
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#include <boost/lexical_cast.hpp>
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#include <boost/spirit/include/qi.hpp>
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#include <boost/spirit/include/qi_lit.hpp>
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#include <boost/spirit/include/phoenix_core.hpp>
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#include <boost/spirit/include/phoenix_operator.hpp>
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#include <boost/spirit/include/phoenix_fusion.hpp>
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#include <boost/spirit/include/phoenix_stl.hpp>
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#include <boost/spirit/include/phoenix_object.hpp>
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#include <boost/fusion/include/adapt_struct.hpp>
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#include <boost/spirit/repository/include/qi_iter_pos.hpp>
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#include <boost/variant/recursive_variant.hpp>
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#include <boost/phoenix/bind/bind_function.hpp>
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#include <iostream>
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#include <string>
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namespace Slic3r {
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PlaceholderParser::PlaceholderParser()
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{
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this->set("version", SLIC3R_VERSION);
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this->apply_env_variables();
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this->update_timestamp();
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}
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void PlaceholderParser::update_timestamp()
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{
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time_t rawtime;
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time(&rawtime);
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struct tm* timeinfo = localtime(&rawtime);
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{
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std::ostringstream ss;
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ss << (1900 + timeinfo->tm_year);
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ss << std::setw(2) << std::setfill('0') << (1 + timeinfo->tm_mon);
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ss << std::setw(2) << std::setfill('0') << timeinfo->tm_mday;
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ss << "-";
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ss << std::setw(2) << std::setfill('0') << timeinfo->tm_hour;
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ss << std::setw(2) << std::setfill('0') << timeinfo->tm_min;
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ss << std::setw(2) << std::setfill('0') << timeinfo->tm_sec;
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this->set("timestamp", ss.str());
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}
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this->set("year", 1900 + timeinfo->tm_year);
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this->set("month", 1 + timeinfo->tm_mon);
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this->set("day", timeinfo->tm_mday);
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this->set("hour", timeinfo->tm_hour);
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this->set("minute", timeinfo->tm_min);
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this->set("second", timeinfo->tm_sec);
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}
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// Scalar configuration values are stored into m_single,
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// vector configuration values are stored into m_multiple.
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// All vector configuration values stored into the PlaceholderParser
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// are expected to be addressed by the extruder ID, therefore
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// if a vector configuration value is addressed without an index,
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// a current extruder ID is used.
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void PlaceholderParser::apply_config(const DynamicPrintConfig &rhs)
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{
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const ConfigDef *def = rhs.def();
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for (const t_config_option_key &opt_key : rhs.keys()) {
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const ConfigOptionDef *opt_def = def->get(opt_key);
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if ((opt_def->multiline && boost::ends_with(opt_key, "_gcode")) || opt_key == "post_process")
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continue;
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const ConfigOption *opt = rhs.option(opt_key);
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// Store a copy of the config option.
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// Convert FloatOrPercent values to floats first.
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//FIXME there are some ratio_over chains, which end with empty ratio_with.
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// For example, XXX_extrusion_width parameters are not handled by get_abs_value correctly.
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this->set(opt_key, (opt->type() == coFloatOrPercent) ?
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new ConfigOptionFloat(rhs.get_abs_value(opt_key)) :
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opt->clone());
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}
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}
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void PlaceholderParser::apply_env_variables()
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{
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for (char** env = environ; *env; ++ env) {
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if (strncmp(*env, "SLIC3R_", 7) == 0) {
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std::stringstream ss(*env);
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std::string key, value;
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std::getline(ss, key, '=');
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ss >> value;
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this->set(key, value);
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}
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}
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}
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namespace spirit = boost::spirit;
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namespace qi = boost::spirit::qi;
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namespace px = boost::phoenix;
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namespace client
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{
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template<typename Iterator>
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struct OptWithPos {
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OptWithPos() {}
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OptWithPos(ConfigOptionConstPtr opt, boost::iterator_range<Iterator> it_range) : opt(opt), it_range(it_range) {}
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ConfigOptionConstPtr opt = nullptr;
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boost::iterator_range<Iterator> it_range;
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};
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template<typename ITERATOR>
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std::ostream& operator<<(std::ostream& os, OptWithPos<ITERATOR> const& opt)
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{
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os << std::string(opt.it_range.begin(), opt.it_range.end());
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return os;
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}
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template<typename Iterator>
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struct expr
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{
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expr() : type(TYPE_EMPTY) { data.s = nullptr; }
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explicit expr(bool b) : type(TYPE_BOOL) { data.b = b; }
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explicit expr(bool b, const Iterator &it_begin, const Iterator &it_end) : type(TYPE_BOOL), it_range(it_begin, it_end) { data.b = b; }
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explicit expr(int i) : type(TYPE_INT) { data.i = i; }
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explicit expr(int i, const Iterator &it_begin, const Iterator &it_end) : type(TYPE_INT), it_range(it_begin, it_end) { data.i = i; }
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explicit expr(double d) : type(TYPE_DOUBLE) { data.d = d; }
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explicit expr(double d, const Iterator &it_begin, const Iterator &it_end) : type(TYPE_DOUBLE), it_range(it_begin, it_end) { data.d = d; }
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explicit expr(const char *s) : type(TYPE_STRING) { data.s = new std::string(s); }
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explicit expr(const std::string &s) : type(TYPE_STRING) { data.s = new std::string(s); }
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explicit expr(const std::string &s, const Iterator &it_begin, const Iterator &it_end) :
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type(TYPE_STRING), it_range(it_begin, it_end) { data.s = new std::string(s); }
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expr(const expr &rhs) : type(rhs.type) { data.s = (rhs.type == TYPE_STRING) ? new std::string(*rhs.data.s) : rhs.data.s; }
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explicit expr(expr &&rhs) : type(rhs.type) { data.s = rhs.data.s; rhs.data.s = nullptr; rhs.type = TYPE_EMPTY; }
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explicit expr(expr &&rhs, const Iterator &it_begin, const Iterator &it_end) : type(rhs.type), it_range(it_begin, it_end)
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{ data.s = rhs.data.s; rhs.data.s = nullptr; rhs.type = TYPE_EMPTY; }
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~expr() { this->reset(); }
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expr &operator=(const expr &rhs)
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{
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type = rhs.type;
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data.s = (type == TYPE_STRING) ? new std::string(*rhs.data.s) : rhs.data.s;
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return *this;
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}
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expr &operator=(expr &&rhs)
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{
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type = rhs.type;
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data.s = rhs.data.s;
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rhs.data.s = nullptr;
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rhs.type = TYPE_EMPTY;
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return *this;
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}
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void reset()
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{
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if (this->type == TYPE_STRING)
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delete data.s;
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data.s = nullptr;
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this->type = TYPE_EMPTY;
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}
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bool& b() { return data.b; }
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bool b() const { return data.b; }
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void set_b(bool v) { this->reset(); this->data.b = v; this->type = TYPE_BOOL; }
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int& i() { return data.i; }
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int i() const { return data.i; }
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void set_i(int v) { this->reset(); this->data.i = v; this->type = TYPE_INT; }
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int as_i() const { return (this->type == TYPE_INT) ? this->i() : int(this->d()); }
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double& d() { return data.d; }
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double d() const { return data.d; }
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void set_d(double v) { this->reset(); this->data.d = v; this->type = TYPE_DOUBLE; }
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double as_d() const { return (this->type == TYPE_DOUBLE) ? this->d() : double(this->i()); }
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std::string& s() { return *data.s; }
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const std::string& s() const { return *data.s; }
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void set_s(const std::string &s) { this->reset(); this->data.s = new std::string(s); this->type = TYPE_STRING; }
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void set_s(std::string &&s) { this->reset(); this->data.s = new std::string(std::move(s)); this->type = TYPE_STRING; }
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std::string to_string() const
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{
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std::string out;
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switch (type) {
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case TYPE_BOOL: out = boost::to_string(data.b); break;
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case TYPE_INT: out = boost::to_string(data.i); break;
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case TYPE_DOUBLE: out = boost::to_string(data.d); break;
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case TYPE_STRING: out = *data.s; break;
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}
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return out;
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}
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union {
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bool b;
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int i;
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double d;
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std::string *s;
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} data;
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enum Type {
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TYPE_EMPTY = 0,
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TYPE_BOOL,
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TYPE_INT,
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TYPE_DOUBLE,
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TYPE_STRING,
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};
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Type type;
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// Range of input iterators covering this expression.
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// Used for throwing parse exceptions.
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boost::iterator_range<Iterator> it_range;
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expr unary_minus(Iterator &start_pos) const
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{
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switch (this->type) {
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case TYPE_INT :
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return expr<Iterator>(- this->i(), start_pos, this->it_range.end());
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case TYPE_DOUBLE:
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return expr<Iterator>(- this->d(), start_pos, this->it_range.end());
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default:
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this->throw_exception("Cannot apply unary minus operator.");
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}
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assert(false);
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// Suppress compiler warnings.
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return expr();
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}
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expr &operator+=(const expr &rhs)
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{
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const char *err_msg = "Cannot multiply with non-numeric type.";
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this->throw_if_not_numeric(err_msg);
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rhs.throw_if_not_numeric(err_msg);
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if (this->type == TYPE_DOUBLE || rhs.type == TYPE_DOUBLE) {
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double d = this->as_d() + rhs.as_d();
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this->data.d = d;
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this->type = TYPE_DOUBLE;
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} else
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this->data.i += rhs.i();
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this->it_range = boost::iterator_range<Iterator>(this->it_range.begin(), rhs.it_range.end());
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return *this;
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}
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expr &operator-=(const expr &rhs)
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{
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const char *err_msg = "Cannot multiply with non-numeric type.";
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this->throw_if_not_numeric(err_msg);
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rhs.throw_if_not_numeric(err_msg);
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if (this->type == TYPE_DOUBLE || rhs.type == TYPE_DOUBLE) {
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double d = this->as_d() - rhs.as_d();
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this->data.d = d;
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this->type = TYPE_DOUBLE;
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} else
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this->data.i -= rhs.i();
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this->it_range = boost::iterator_range<Iterator>(this->it_range.begin(), rhs.it_range.end());
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return *this;
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}
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expr &operator*=(const expr &rhs)
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{
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const char *err_msg = "Cannot multiply with non-numeric type.";
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this->throw_if_not_numeric(err_msg);
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rhs.throw_if_not_numeric(err_msg);
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if (this->type == TYPE_DOUBLE || rhs.type == TYPE_DOUBLE) {
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double d = this->as_d() * rhs.as_d();
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this->data.d = d;
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this->type = TYPE_DOUBLE;
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} else
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this->data.i *= rhs.i();
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this->it_range = boost::iterator_range<Iterator>(this->it_range.begin(), rhs.it_range.end());
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return *this;
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}
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expr &operator/=(const expr &rhs)
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{
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this->throw_if_not_numeric("Cannot divide a non-numeric type.");
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rhs.throw_if_not_numeric("Cannot divide with a non-numeric type.");
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if ((this->type == TYPE_INT) ? (rhs.i() == 0) : (rhs.d() == 0.))
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rhs.throw_exception("Division by zero");
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if (this->type == TYPE_DOUBLE || rhs.type == TYPE_DOUBLE) {
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double d = this->as_d() / rhs.as_d();
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this->data.d = d;
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this->type = TYPE_DOUBLE;
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} else
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this->data.i /= rhs.i();
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this->it_range = boost::iterator_range<Iterator>(this->it_range.begin(), rhs.it_range.end());
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return *this;
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}
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static void to_string2(expr &self, std::string &out)
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{
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out = self.to_string();
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}
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static void evaluate_boolean(expr &self, bool &out)
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{
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if (self.type != TYPE_BOOL)
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self.throw_exception("Not a boolean expression");
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out = self.b();
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}
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// Is lhs==rhs? Store the result into lhs.
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static void compare_op(expr &lhs, expr &rhs, char op)
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{
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bool value = false;
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if ((lhs.type == TYPE_INT || lhs.type == TYPE_DOUBLE) &&
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(rhs.type == TYPE_INT || rhs.type == TYPE_DOUBLE)) {
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// Both types are numeric.
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value = (lhs.type == TYPE_DOUBLE || rhs.type == TYPE_DOUBLE) ?
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(lhs.as_d() == rhs.as_d()) : (lhs.i() == rhs.i());
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} else if (lhs.type == TYPE_BOOL && rhs.type == TYPE_BOOL) {
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// Both type are bool.
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value = lhs.b() == rhs.b();
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} else if (lhs.type == TYPE_STRING || rhs.type == TYPE_STRING) {
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// One type is string, the other could be converted to string.
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value = lhs.to_string() == rhs.to_string();
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} else {
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boost::throw_exception(qi::expectation_failure<Iterator>(
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lhs.it_range.begin(), rhs.it_range.end(), spirit::info("Cannot compare the types.")));
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}
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lhs.type = TYPE_BOOL;
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lhs.data.b = (op == '=') ? value : !value;
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}
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static void equal(expr &lhs, expr &rhs) { compare_op(lhs, rhs, '='); }
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static void not_equal(expr &lhs, expr &rhs) { compare_op(lhs, rhs, '!'); }
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static void set_if(bool &cond, bool ¬_yet_consumed, std::string &str_in, std::string &str_out)
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{
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if (cond && not_yet_consumed) {
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str_out = str_in;
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not_yet_consumed = false;
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}
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}
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void throw_exception(const char *message) const
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{
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boost::throw_exception(qi::expectation_failure<Iterator>(
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this->it_range.begin(), this->it_range.end(), spirit::info(message)));
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}
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void throw_if_not_numeric(const char *message) const
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{
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if (this->type != TYPE_INT && this->type != TYPE_DOUBLE)
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this->throw_exception(message);
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}
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};
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template<typename ITERATOR>
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std::ostream& operator<<(std::ostream &os, const expr<ITERATOR> &expression)
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{
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typedef expr<ITERATOR> Expr;
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os << std::string(expression.it_range.begin(), expression.it_range.end()) << ' - ';
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switch (expression.type) {
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case Expr::TYPE_EMPTY: os << "empty"; break;
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case Expr::TYPE_BOOL: os << "bool (" << expression.b() << ")"; break;
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case Expr::TYPE_INT: os << "int (" << expression.i() << ")"; break;
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case Expr::TYPE_DOUBLE: os << "double (" << expression.d() << ")"; break;
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case Expr::TYPE_STRING: os << "string (" << expression.s() << ")"; break;
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default: os << "unknown";
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};
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return os;
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}
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struct MyContext {
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const PlaceholderParser *pp = nullptr;
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const DynamicConfig *config_override = nullptr;
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const size_t current_extruder_id = 0;
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const ConfigOption* resolve_symbol(const std::string &opt_key) const
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{
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const ConfigOption *opt = nullptr;
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if (config_override != nullptr)
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opt = config_override->option(opt_key);
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if (opt == nullptr)
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opt = pp->option(opt_key);
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return opt;
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}
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template <typename Iterator>
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static void legacy_variable_expansion(
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const MyContext *ctx,
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boost::iterator_range<Iterator> &opt_key,
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std::string &output)
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{
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std::string opt_key_str(opt_key.begin(), opt_key.end());
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const ConfigOption *opt = ctx->resolve_symbol(opt_key_str);
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size_t idx = ctx->current_extruder_id;
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if (opt == nullptr) {
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// Check whether this is a legacy vector indexing.
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idx = opt_key_str.rfind('_');
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if (idx != std::string::npos) {
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opt = ctx->resolve_symbol(opt_key_str.substr(0, idx));
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if (opt != nullptr) {
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if (! opt->is_vector())
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boost::throw_exception(qi::expectation_failure<Iterator>(
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opt_key.begin(), opt_key.end(), spirit::info("Trying to index a scalar variable")));
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char *endptr = nullptr;
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idx = strtol(opt_key_str.c_str() + idx + 1, &endptr, 10);
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if (endptr == nullptr || *endptr != 0)
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boost::throw_exception(qi::expectation_failure<Iterator>(
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opt_key.begin() + idx + 1, opt_key.end(), spirit::info("Invalid vector index")));
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}
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}
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}
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if (opt == nullptr)
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boost::throw_exception(qi::expectation_failure<Iterator>(
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opt_key.begin(), opt_key.end(), spirit::info("Variable does not exist")));
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if (opt->is_scalar())
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output = opt->serialize();
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else {
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const ConfigOptionVectorBase *vec = static_cast<const ConfigOptionVectorBase*>(opt);
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if (vec->empty())
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boost::throw_exception(qi::expectation_failure<Iterator>(
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opt_key.begin(), opt_key.end(), spirit::info("Indexing an empty vector variable")));
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output = vec->vserialize()[(idx >= vec->size()) ? 0 : idx];
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}
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}
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template <typename Iterator>
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static void legacy_variable_expansion2(
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const MyContext *ctx,
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boost::iterator_range<Iterator> &opt_key,
|
|
boost::iterator_range<Iterator> &opt_vector_index,
|
|
std::string &output)
|
|
{
|
|
std::string opt_key_str(opt_key.begin(), opt_key.end());
|
|
const ConfigOption *opt = ctx->resolve_symbol(opt_key_str);
|
|
if (opt == nullptr) {
|
|
// Check whether the opt_key ends with '_'.
|
|
if (opt_key_str.back() == '_')
|
|
opt_key_str.resize(opt_key_str.size() - 1);
|
|
opt = ctx->resolve_symbol(opt_key_str);
|
|
}
|
|
if (! opt->is_vector())
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt_key.begin(), opt_key.end(), spirit::info("Trying to index a scalar variable")));
|
|
const ConfigOptionVectorBase *vec = static_cast<const ConfigOptionVectorBase*>(opt);
|
|
if (vec->empty())
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt_key.begin(), opt_key.end(), spirit::info("Indexing an empty vector variable")));
|
|
const ConfigOption *opt_index = ctx->resolve_symbol(std::string(opt_vector_index.begin(), opt_vector_index.end()));
|
|
if (opt_index == nullptr)
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt_key.begin(), opt_key.end(), spirit::info("Variable does not exist")));
|
|
if (opt_index->type() != coInt)
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt_key.begin(), opt_key.end(), spirit::info("Indexing variable has to be integer")));
|
|
int idx = opt_index->getInt();
|
|
if (idx < 0)
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt_key.begin(), opt_key.end(), spirit::info("Negative vector index")));
|
|
output = vec->vserialize()[(idx >= (int)vec->size()) ? 0 : idx];
|
|
}
|
|
|
|
template <typename Iterator>
|
|
static void resolve_variable(
|
|
const MyContext *ctx,
|
|
boost::iterator_range<Iterator> &opt_key,
|
|
OptWithPos<Iterator> &output)
|
|
{
|
|
const ConfigOption *opt = ctx->resolve_symbol(std::string(opt_key.begin(), opt_key.end()));
|
|
if (opt == nullptr)
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt_key.begin(), opt_key.end(), spirit::info("Not a variable name")));
|
|
output.opt = opt;
|
|
output.it_range = opt_key;
|
|
}
|
|
|
|
template <typename Iterator>
|
|
static void scalar_variable_reference(
|
|
const MyContext *ctx,
|
|
OptWithPos<Iterator> &opt,
|
|
expr<Iterator> &output)
|
|
{
|
|
if (opt.opt->is_vector())
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt.it_range.begin(), opt.it_range.end(), spirit::info("Referencing a scalar variable in a vector context")));
|
|
switch (opt.opt->type()) {
|
|
case coFloat: output.set_d(opt.opt->getFloat()); break;
|
|
case coInt: output.set_i(opt.opt->getInt()); break;
|
|
case coString: output.set_s(static_cast<const ConfigOptionString*>(opt.opt)->value); break;
|
|
case coPercent: output.set_d(opt.opt->getFloat()); break;
|
|
case coPoint: output.set_s(opt.opt->serialize()); break;
|
|
case coBool: output.set_b(opt.opt->getBool()); break;
|
|
case coFloatOrPercent:
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt.it_range.begin(), opt.it_range.end(), spirit::info("FloatOrPercent variables are not supported")));
|
|
default:
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt.it_range.begin(), opt.it_range.end(), spirit::info("Unknown scalar variable type")));
|
|
}
|
|
output.it_range = opt.it_range;
|
|
}
|
|
|
|
template <typename Iterator>
|
|
static void vector_variable_reference(
|
|
const MyContext *ctx,
|
|
OptWithPos<Iterator> &opt,
|
|
int &index,
|
|
Iterator it_end,
|
|
expr<Iterator> &output)
|
|
{
|
|
if (opt.opt->is_scalar())
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt.it_range.begin(), opt.it_range.end(), spirit::info("Referencing a vector variable in a scalar context")));
|
|
const ConfigOptionVectorBase *vec = static_cast<const ConfigOptionVectorBase*>(opt.opt);
|
|
if (vec->empty())
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt.it_range.begin(), opt.it_range.end(), spirit::info("Indexing an empty vector variable")));
|
|
size_t idx = (index < 0) ? 0 : (index >= int(vec->size())) ? 0 : size_t(index);
|
|
switch (opt.opt->type()) {
|
|
case coFloats: output.set_d(static_cast<const ConfigOptionFloats *>(opt.opt)->values[idx]); break;
|
|
case coInts: output.set_i(static_cast<const ConfigOptionInts *>(opt.opt)->values[idx]); break;
|
|
case coStrings: output.set_s(static_cast<const ConfigOptionStrings *>(opt.opt)->values[idx]); break;
|
|
case coPercents: output.set_d(static_cast<const ConfigOptionPercents*>(opt.opt)->values[idx]); break;
|
|
case coPoints: output.set_s(static_cast<const ConfigOptionPoints *>(opt.opt)->values[idx].dump_perl()); break;
|
|
case coBools: output.set_b(static_cast<const ConfigOptionBools *>(opt.opt)->values[idx] != 0); break;
|
|
default:
|
|
boost::throw_exception(qi::expectation_failure<Iterator>(
|
|
opt.it_range.begin(), opt.it_range.end(), spirit::info("Unknown vector variable type")));
|
|
}
|
|
output.it_range = boost::iterator_range<Iterator>(opt.it_range.begin(), it_end);
|
|
}
|
|
|
|
// Verify that the expression returns an integer, which may be used
|
|
// to address a vector.
|
|
template <typename Iterator>
|
|
static void evaluate_index(expr<Iterator> &expr_index, int &output)
|
|
{
|
|
if (expr_index.type != expr<Iterator>::TYPE_INT)
|
|
expr_index.throw_exception("Non-integer index is not allowed to address a vector variable.");
|
|
output = expr_index.i();
|
|
}
|
|
};
|
|
|
|
// For debugging the boost::spirit parsers. Print out the string enclosed in it_range.
|
|
template<typename Iterator>
|
|
std::ostream& operator<<(std::ostream& os, const boost::iterator_range<Iterator> &it_range)
|
|
{
|
|
os << std::string(it_range.begin(), it_range.end());
|
|
return os;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////
|
|
// Our calculator grammar
|
|
///////////////////////////////////////////////////////////////////////////
|
|
template <typename Iterator>
|
|
struct calculator : qi::grammar<Iterator, std::string(const MyContext*), spirit::ascii::space_type>
|
|
{
|
|
calculator() : calculator::base_type(start)
|
|
{
|
|
qi::alpha_type alpha;
|
|
qi::alnum_type alnum;
|
|
qi::eol_type eol;
|
|
qi::eoi_type eoi;
|
|
qi::eps_type eps;
|
|
qi::omit_type omit;
|
|
qi::raw_type raw;
|
|
qi::lit_type lit;
|
|
qi::lexeme_type lexeme;
|
|
qi::skip_type skip;
|
|
qi::no_skip_type no_skip;
|
|
qi::uint_type uint_;
|
|
qi::real_parser<double, qi::strict_real_policies<double>> strict_double;
|
|
spirit::ascii::char_type char_;
|
|
spirit::bool_type bool_;
|
|
spirit::int_type int_;
|
|
spirit::double_type double_;
|
|
spirit::ascii::string_type string;
|
|
spirit::repository::qi::iter_pos_type iter_pos;
|
|
using namespace qi::labels;
|
|
|
|
qi::_val_type _val;
|
|
qi::_1_type _1;
|
|
qi::_2_type _2;
|
|
qi::_a_type _a;
|
|
qi::_b_type _b;
|
|
qi::_r1_type _r1;
|
|
|
|
// Starting symbol of the grammer.
|
|
// The leading eps is required by the "expectation point" operator ">".
|
|
// Without it, some of the errors would not trigger the error handler.
|
|
start = eps > text_block(_r1);
|
|
start.name("start");
|
|
|
|
text_block = *(
|
|
text [_val+=_1]
|
|
// Allow back tracking after '{' in case of a text_block embedded inside a condition.
|
|
// In that case the inner-most {else} wins and the {if}/{elsif}/{else} shall be paired.
|
|
// {elsif}/{else} without an {if} will be allowed to back track from the embedded text_block.
|
|
| lit('{') >> macro(_r1) [_val+=_1] > '}'
|
|
| lit('[') > legacy_variable_expansion(_r1) [_val+=_1] > ']'
|
|
);
|
|
text_block.name("text_block");
|
|
|
|
// Free-form text up to a first brace, including spaces and newlines.
|
|
// The free-form text will be inserted into the processed text without a modification.
|
|
text = raw[no_skip[+(char_ - '[' - '{')]];
|
|
text.name("text");
|
|
|
|
// New style of macro expansion.
|
|
// The macro expansion may contain numeric or string expressions, ifs and cases.
|
|
macro =
|
|
string("if") > if_else_output(_r1) [_val = _1]
|
|
| string("switch") > switch_output(_r1) [_val = _1]
|
|
| expression(_r1) [ px::bind(&expr<Iterator>::to_string2, _1, _val) ];
|
|
macro.name("macro");
|
|
|
|
// An if expression enclosed in {} (the outmost {} are already parsed by the caller).
|
|
if_else_output =
|
|
eps[_b=true] >
|
|
bool_expr_eval(_r1)[_a=_1] > '}' >
|
|
text_block(_r1)[px::bind(&expr<Iterator>::set_if, _a, _b, _1, _val)] > '{' >
|
|
*("elsif" > bool_expr_eval(_r1)[_a=_1] > '}' >
|
|
text_block(_r1)[px::bind(&expr<Iterator>::set_if, _a, _b, _1, _val)] > '{') >
|
|
-("else" > lit('}') >
|
|
text_block(_r1)[px::bind(&expr<Iterator>::set_if, _b, _b, _1, _val)] > '{') >
|
|
"endif";
|
|
if_else_output.name("if_else_output");
|
|
// A switch expression enclosed in {} (the outmost {} are already parsed by the caller).
|
|
/*
|
|
switch_output =
|
|
eps[_b=true] >
|
|
omit[expr(_r1)[_a=_1]] > '}' > text_block(_r1)[px::bind(&expr<Iterator>::set_if_equal, _a, _b, _1, _val)] > '{' >
|
|
*("elsif" > omit[bool_expr_eval(_r1)[_a=_1]] > '}' > text_block(_r1)[px::bind(&expr<Iterator>::set_if, _a, _b, _1, _val)]) >>
|
|
-("else" > '}' >> text_block(_r1)[px::bind(&expr<Iterator>::set_if, _b, _b, _1, _val)]) >
|
|
"endif";
|
|
*/
|
|
|
|
// Legacy variable expansion of the original Slic3r, in the form of [scalar_variable] or [vector_variable_index].
|
|
legacy_variable_expansion =
|
|
(identifier >> &lit(']'))
|
|
[ px::bind(&MyContext::legacy_variable_expansion<Iterator>, _r1, _1, _val) ]
|
|
| (identifier > lit('[') > identifier > ']')
|
|
[ px::bind(&MyContext::legacy_variable_expansion2<Iterator>, _r1, _1, _2, _val) ]
|
|
;
|
|
legacy_variable_expansion.name("legacy_variable_expansion");
|
|
|
|
identifier =
|
|
! keywords >>
|
|
raw[lexeme[(alpha | '_') >> *(alnum | '_')]];
|
|
identifier.name("identifier");
|
|
|
|
bool_expr =
|
|
expression(_r1) [_val = _1]
|
|
>> *( ("==" > expression(_r1) ) [px::bind(&expr<Iterator>::equal, _val, _1)]
|
|
| ("!=" > expression(_r1) ) [px::bind(&expr<Iterator>::not_equal, _val, _1)]
|
|
| ("<>" > expression(_r1) ) [px::bind(&expr<Iterator>::not_equal, _val, _1)]
|
|
);
|
|
bool_expr.name("bool expression");
|
|
|
|
// Evaluate a boolean expression stored as expr into a boolean value.
|
|
// Throw if the bool_expr does not produce a expr of boolean type.
|
|
bool_expr_eval = bool_expr(_r1) [ px::bind(&expr<Iterator>::evaluate_boolean, _1, _val) ];
|
|
bool_expr_eval.name("bool_expr_eval");
|
|
|
|
expression =
|
|
term(_r1) [_val = _1]
|
|
>> *( (lit('+') > term(_r1) ) [_val += _1]
|
|
| (lit('-') > term(_r1) ) [_val -= _1]
|
|
);
|
|
expression.name("expression");
|
|
|
|
term =
|
|
factor(_r1) [_val = _1]
|
|
>> *( (lit('*') > factor(_r1) ) [_val *= _1]
|
|
| (lit('/') > factor(_r1) ) [_val /= _1]
|
|
);
|
|
term.name("term");
|
|
|
|
struct FactorActions {
|
|
static void set_start_pos(Iterator &start_pos, expr<Iterator> &out)
|
|
{ out.it_range = boost::iterator_range<Iterator>(start_pos, start_pos); }
|
|
static void int_(int &value, Iterator &end_pos, expr<Iterator> &out)
|
|
{ out = expr<Iterator>(value, out.it_range.begin(), end_pos); }
|
|
static void double_(double &value, Iterator &end_pos, expr<Iterator> &out)
|
|
{ out = expr<Iterator>(value, out.it_range.begin(), end_pos); }
|
|
static void bool_(bool &value, Iterator &end_pos, expr<Iterator> &out)
|
|
{ out = expr<Iterator>(value, out.it_range.begin(), end_pos); }
|
|
static void string_(boost::iterator_range<Iterator> &it_range, expr<Iterator> &out)
|
|
{ out = expr<Iterator>(std::string(it_range.begin() + 1, it_range.end() - 1), it_range.begin(), it_range.end()); }
|
|
static void expr_(expr<Iterator> &value, Iterator &end_pos, expr<Iterator> &out)
|
|
{ out = expr<Iterator>(std::move(value), out.it_range.begin(), end_pos); }
|
|
static void minus_(expr<Iterator> &value, expr<Iterator> &out)
|
|
{ out = value.unary_minus(out.it_range.begin()); }
|
|
};
|
|
factor = iter_pos[px::bind(&FactorActions::set_start_pos, _1, _val)] >> (
|
|
scalar_variable_reference(_r1) [ _val = _1 ]
|
|
| (lit('(') > expression(_r1) > ')' > iter_pos) [ px::bind(&FactorActions::expr_, _1, _2, _val) ]
|
|
| (lit('-') > factor(_r1) ) [ px::bind(&FactorActions::minus_, _1, _val) ]
|
|
| (lit('+') > factor(_r1) > iter_pos) [ px::bind(&FactorActions::expr_, _1, _2, _val) ]
|
|
| (strict_double > iter_pos) [ px::bind(&FactorActions::double_, _1, _2, _val) ]
|
|
| (int_ > iter_pos) [ px::bind(&FactorActions::int_, _1, _2, _val) ]
|
|
| (bool_ > iter_pos) [ px::bind(&FactorActions::bool_, _1, _2, _val) ]
|
|
| raw[lexeme['"' > *(char_ - char_('\\') - char_('"') | '\\' > char_) > '"']]
|
|
[ px::bind(&FactorActions::string_, _1, _val) ]
|
|
);
|
|
factor.name("factor");
|
|
|
|
scalar_variable_reference =
|
|
variable_reference(_r1)[_a=_1] >>
|
|
(
|
|
'[' > expression(_r1)[px::bind(&MyContext::evaluate_index<Iterator>, _1, _b)] > ']' >
|
|
iter_pos[px::bind(&MyContext::vector_variable_reference<Iterator>, _r1, _a, _b, _1, _val)]
|
|
| eps[px::bind(&MyContext::scalar_variable_reference<Iterator>, _r1, _a, _val)]
|
|
);
|
|
scalar_variable_reference.name("scalar variable reference");
|
|
|
|
variable_reference = identifier
|
|
[ px::bind(&MyContext::resolve_variable<Iterator>, _r1, _1, _val) ];
|
|
variable_reference.name("variable reference");
|
|
/*
|
|
qi::on_error<qi::fail>(start,
|
|
phx::ref(std::cout)
|
|
<< "Error! Expecting "
|
|
<< qi::_4
|
|
<< " here: '"
|
|
<< px::construct<std::string>(qi::_3, qi::_2)
|
|
<< "'\n"
|
|
);
|
|
*/
|
|
|
|
keywords.add
|
|
("if")
|
|
//("inf")
|
|
("else")
|
|
("elsif")
|
|
("endif");
|
|
|
|
if (0) {
|
|
debug(start);
|
|
debug(text);
|
|
debug(text_block);
|
|
debug(macro);
|
|
debug(if_else_output);
|
|
debug(switch_output);
|
|
debug(legacy_variable_expansion);
|
|
debug(identifier);
|
|
debug(bool_expr);
|
|
debug(bool_expr_eval);
|
|
debug(expression);
|
|
debug(term);
|
|
debug(factor);
|
|
debug(scalar_variable_reference);
|
|
debug(variable_reference);
|
|
}
|
|
}
|
|
|
|
// The start of the grammar.
|
|
qi::rule<Iterator, std::string(const MyContext*), spirit::ascii::space_type> start;
|
|
// A free-form text.
|
|
qi::rule<Iterator, std::string(), spirit::ascii::space_type> text;
|
|
// A free-form text, possibly empty, possibly containing macro expansions.
|
|
qi::rule<Iterator, std::string(const MyContext*), spirit::ascii::space_type> text_block;
|
|
// Statements enclosed in curely braces {}
|
|
qi::rule<Iterator, std::string(const MyContext*), spirit::ascii::space_type> macro;
|
|
// Legacy variable expansion of the original Slic3r, in the form of [scalar_variable] or [vector_variable_index].
|
|
qi::rule<Iterator, std::string(const MyContext*), spirit::ascii::space_type> legacy_variable_expansion;
|
|
// Parsed identifier name.
|
|
qi::rule<Iterator, boost::iterator_range<Iterator>(), spirit::ascii::space_type> identifier;
|
|
// Math expression consisting of +- operators over terms.
|
|
qi::rule<Iterator, expr<Iterator>(const MyContext*), spirit::ascii::space_type> expression;
|
|
// Boolean expressions over expressions.
|
|
qi::rule<Iterator, expr<Iterator>(const MyContext*), spirit::ascii::space_type> bool_expr;
|
|
// Evaluate boolean expression into bool.
|
|
qi::rule<Iterator, bool(const MyContext*), spirit::ascii::space_type> bool_expr_eval;
|
|
// Math expression consisting of */ operators over factors.
|
|
qi::rule<Iterator, expr<Iterator>(const MyContext*), spirit::ascii::space_type> term;
|
|
// Number literals, functions, braced expressions, variable references, variable indexing references.
|
|
qi::rule<Iterator, expr<Iterator>(const MyContext*), spirit::ascii::space_type> factor;
|
|
// Reference of a scalar variable, or reference to a field of a vector variable.
|
|
qi::rule<Iterator, expr<Iterator>(const MyContext*), qi::locals<OptWithPos<Iterator>, int>, spirit::ascii::space_type> scalar_variable_reference;
|
|
// Rule to translate an identifier to a ConfigOption, or to fail.
|
|
qi::rule<Iterator, OptWithPos<Iterator>(const MyContext*), spirit::ascii::space_type> variable_reference;
|
|
|
|
qi::rule<Iterator, std::string(const MyContext*), qi::locals<bool, bool>, spirit::ascii::space_type> if_else_output;
|
|
qi::rule<Iterator, std::string(const MyContext*), qi::locals<expr<Iterator>, bool, std::string>, spirit::ascii::space_type> switch_output;
|
|
|
|
qi::symbols<char> keywords;
|
|
};
|
|
}
|
|
|
|
struct printer
|
|
{
|
|
typedef spirit::utf8_string string;
|
|
|
|
void element(string const& tag, string const& value, int depth) const
|
|
{
|
|
for (int i = 0; i < (depth*4); ++i) // indent to depth
|
|
std::cout << ' ';
|
|
std::cout << "tag: " << tag;
|
|
if (value != "")
|
|
std::cout << ", value: " << value;
|
|
std::cout << std::endl;
|
|
}
|
|
};
|
|
|
|
void print_info(spirit::info const& what)
|
|
{
|
|
using spirit::basic_info_walker;
|
|
printer pr;
|
|
basic_info_walker<printer> walker(pr, what.tag, 0);
|
|
boost::apply_visitor(walker, what.value);
|
|
}
|
|
|
|
std::string PlaceholderParser::process(const std::string &templ, unsigned int current_extruder_id, const DynamicConfig *config_override) const
|
|
{
|
|
typedef std::string::const_iterator iterator_type;
|
|
typedef client::calculator<iterator_type> calculator;
|
|
|
|
spirit::ascii::space_type space; // Our skipper
|
|
calculator calc; // Our grammar
|
|
|
|
std::string::const_iterator iter = templ.begin();
|
|
std::string::const_iterator end = templ.end();
|
|
//std::string result;
|
|
std::string result;
|
|
bool r = false;
|
|
try {
|
|
client::MyContext context;
|
|
context.pp = this;
|
|
context.config_override = config_override;
|
|
r = phrase_parse(iter, end, calc(&context), space, result);
|
|
} catch (qi::expectation_failure<iterator_type> const& x) {
|
|
std::cout << "expected: "; print_info(x.what_);
|
|
std::cout << "got: \"" << std::string(x.first, x.last) << '"' << std::endl;
|
|
}
|
|
|
|
if (r && iter == end)
|
|
{
|
|
// std::cout << "-------------------------\n";
|
|
// std::cout << "Parsing succeeded\n";
|
|
// std::cout << "result = " << result << std::endl;
|
|
// std::cout << "-------------------------\n";
|
|
}
|
|
else
|
|
{
|
|
std::string rest(iter, end);
|
|
std::cout << "-------------------------\n";
|
|
std::cout << "Parsing failed\n";
|
|
std::cout << "stopped at: \" " << rest << "\"\n";
|
|
std::cout << "source: \n" << templ;
|
|
std::cout << "-------------------------\n";
|
|
}
|
|
return result;
|
|
}
|
|
|
|
}
|