PrusaSlicer-NonPlainar/src/libslic3r/PlaceholderParser.hpp
2020-12-09 15:12:17 +01:00

74 lines
3.7 KiB
C++

#ifndef slic3r_PlaceholderParser_hpp_
#define slic3r_PlaceholderParser_hpp_
#include "libslic3r.h"
#include <map>
#include <random>
#include <string>
#include <vector>
#include "PrintConfig.hpp"
namespace Slic3r {
class PlaceholderParser
{
public:
// Context to be shared during multiple executions of the PlaceholderParser.
// The context is kept external to the PlaceholderParser, so that the same PlaceholderParser
// may be called safely from multiple threads.
// In the future, the context may hold variables created and modified by the PlaceholderParser
// and shared between the PlaceholderParser::process() invocations.
struct ContextData {
std::mt19937 rng;
};
PlaceholderParser(const DynamicConfig *external_config = nullptr);
// Return a list of keys, which should be changed in m_config from rhs.
// This contains keys, which are found in rhs, but not in m_config.
std::vector<std::string> config_diff(const DynamicPrintConfig &rhs);
// Return true if modified.
bool apply_config(const DynamicPrintConfig &config);
void apply_config(DynamicPrintConfig &&config);
// To be called on the values returned by PlaceholderParser::config_diff().
// The keys should already be valid.
void apply_only(const DynamicPrintConfig &config, const std::vector<std::string> &keys);
void apply_env_variables();
// Add new ConfigOption values to m_config.
void set(const std::string &key, const std::string &value) { this->set(key, new ConfigOptionString(value)); }
void set(const std::string &key, int value) { this->set(key, new ConfigOptionInt(value)); }
void set(const std::string &key, unsigned int value) { this->set(key, int(value)); }
void set(const std::string &key, bool value) { this->set(key, new ConfigOptionBool(value)); }
void set(const std::string &key, double value) { this->set(key, new ConfigOptionFloat(value)); }
void set(const std::string &key, const std::vector<std::string> &values) { this->set(key, new ConfigOptionStrings(values)); }
void set(const std::string &key, ConfigOption *opt) { m_config.set_key_value(key, opt); }
DynamicConfig& config_writable() { return m_config; }
const DynamicConfig& config() const { return m_config; }
const ConfigOption* option(const std::string &key) const { return m_config.option(key); }
// External config is not owned by PlaceholderParser. It has a lowest priority when looking up an option.
const DynamicConfig* external_config() const { return m_external_config; }
// Fill in the template using a macro processing language.
// Throws Slic3r::PlaceholderParserError on syntax or runtime error.
std::string process(const std::string &templ, unsigned int current_extruder_id = 0, const DynamicConfig *config_override = nullptr, ContextData *context = nullptr) const;
// Evaluate a boolean expression using the full expressive power of the PlaceholderParser boolean expression syntax.
// Throws Slic3r::PlaceholderParserError on syntax or runtime error.
static bool evaluate_boolean_expression(const std::string &templ, const DynamicConfig &config, const DynamicConfig *config_override = nullptr);
// Update timestamp, year, month, day, hour, minute, second variables at the provided config.
static void update_timestamp(DynamicConfig &config);
// Update timestamp, year, month, day, hour, minute, second variables at m_config.
void update_timestamp() { update_timestamp(m_config); }
private:
// config has a higher priority than external_config when looking up a symbol.
DynamicConfig m_config;
const DynamicConfig *m_external_config;
};
}
#endif