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/******************************************************************************
*
*
*
*
* Copyright (C) 1997-2015 by Dimitri van Heesch.
*
* Permission to use, copy, modify, and distribute this software and its
* documentation under the terms of the GNU General Public License is hereby
* granted. No representations are made about the suitability of this software
* for any purpose. It is provided "as is" without express or implied warranty.
* See the GNU General Public License for more details.
*
* Documents produced by Doxygen are derivative works derived from the
* input used in their production; they are not affected by this license.
*
*/
#ifndef CONFIGIMPL_H
#define CONFIGIMPL_H
#include <vector>
#include <unordered_map>
#include <string>
#include <memory>
#include <iostream>
#include "containers.h"
#include "qcstring.h"
class TextStream;
/** Abstract base class for any configuration option.
*/
class ConfigOption
{
friend class ConfigImpl;
public:
/*! The type of option */
enum OptionType
{
O_Info, //!< A section header
O_List, //!< A list of items
O_Enum, //!< A fixed set of items
O_String, //!< A single item
O_Int, //!< An integer value
O_Bool, //!< A boolean value
O_Obsolete, //!< An obsolete option
O_Disabled //!< Disabled compile time option
};
enum
{
/*! Maximum length of an option in the config file. Used for
* alignment purposes.
*/
MAX_OPTION_LENGTH = 23
};
ConfigOption(OptionType t) : m_kind(t)
{
m_spaces.fill(' ',40);
}
virtual ~ConfigOption()
{
}
/*! returns the kind of option this is. */
OptionType kind() const { return m_kind; }
QCString name() const { return m_name; }
QCString docs() const { return m_doc; }
QCString dependsOn() const { return m_dependency; }
void addDependency(const char *dep) { m_dependency = dep; }
void setEncoding(const QCString &e) { m_encoding = e; }
void setUserComment(const QCString &u) { m_userComment += u; }
protected:
virtual void writeTemplate(TextStream &t,bool sl,bool upd) = 0;
virtual void compareDoxyfile(TextStream &t) = 0;
virtual void convertStrToVal() {}
virtual void emptyValueToDefault() {}
virtual void substEnvVars() = 0;
virtual void init() {}
void writeBoolValue(TextStream &t,bool v);
void writeIntValue(TextStream &t,int i);
void writeStringValue(TextStream &t,const QCString &s);
void writeStringList(TextStream &t,const StringVector &l);
QCString m_spaces;
QCString m_name;
QCString m_doc;
QCString m_dependency;
QCString m_encoding;
QCString m_userComment;
OptionType m_kind;
};
/** Section marker for grouping the configuration options.
*/
class ConfigInfo : public ConfigOption
{
public:
ConfigInfo(const char *name,const char *doc)
: ConfigOption(O_Info)
{
m_name = name;
m_doc = doc;
}
void writeTemplate(TextStream &t, bool sl,bool);
void compareDoxyfile(TextStream &){};
void substEnvVars() {}
};
/** Class respresenting a list type option.
*/
class ConfigList : public ConfigOption
{
public:
enum WidgetType { String, File, Dir, FileAndDir };
ConfigList(const char *name,const char *doc)
: ConfigOption(O_List)
{
m_name = name;
m_doc = doc;
m_widgetType = String;
}
void addValue(const char *v) { m_defaultValue.push_back(v); }
void setWidgetType(WidgetType w) { m_widgetType = w; }
WidgetType widgetType() const { return m_widgetType; }
StringVector *valueRef() { return &m_value; }
StringVector getDefault() { return m_defaultValue; }
void writeTemplate(TextStream &t,bool sl,bool);
void compareDoxyfile(TextStream &t);
void substEnvVars();
void init() { m_value = m_defaultValue; }
private:
StringVector m_value;
StringVector m_defaultValue;
WidgetType m_widgetType;
};
/** Class representing an enum type option.
*/
class ConfigEnum : public ConfigOption
{
public:
ConfigEnum(const char *name,const char *doc,const char *defVal)
: ConfigOption(O_Enum)
{
m_name = name;
m_doc = doc;
m_value = defVal;
m_defValue = defVal;
}
void addValue(const char *v) { m_valueRange.push_back(v); }
const std::vector<QCString> &values() const { return m_valueRange; }
QCString *valueRef() { return &m_value; }
void substEnvVars();
void writeTemplate(TextStream &t,bool sl,bool);
void convertStrToVal();
void compareDoxyfile(TextStream &t);
void init() { m_value = m_defValue; }
private:
std::vector<QCString> m_valueRange;
QCString m_value;
QCString m_defValue;
};
/** Class representing a string type option.
*/
class ConfigString : public ConfigOption
{
public:
enum WidgetType { String, File, Dir, Image };
ConfigString(const char *name,const char *doc)
: ConfigOption(O_String)
{
m_name = name;
m_doc = doc;
m_widgetType = String;
}
~ConfigString()
{
}
void setWidgetType(WidgetType w) { m_widgetType = w; }
WidgetType widgetType() const { return m_widgetType; }
void setDefaultValue(const char *v) { m_defValue = v; }
QCString *valueRef() { return &m_value; }
void writeTemplate(TextStream &t,bool sl,bool);
void compareDoxyfile(TextStream &t);
void substEnvVars();
void init() { m_value = m_defValue; }
void emptyValueToDefault() { if(m_value.isEmpty()) m_value=m_defValue; };
private:
QCString m_value;
QCString m_defValue;
WidgetType m_widgetType;
};
/** Class representing an integer type option.
*/
class ConfigInt : public ConfigOption
{
public:
ConfigInt(const char *name,const char *doc,int minVal,int maxVal,int defVal)
: ConfigOption(O_Int)
{
m_name = name;
m_doc = doc;
m_value = defVal;
m_defValue = defVal;
m_minVal = minVal;
m_maxVal = maxVal;
}
QCString *valueStringRef() { return &m_valueString; }
int *valueRef() { return &m_value; }
int minVal() const { return m_minVal; }
int maxVal() const { return m_maxVal; }
void convertStrToVal();
void substEnvVars();
void writeTemplate(TextStream &t,bool sl,bool upd);
void compareDoxyfile(TextStream &t);
void init() { m_value = m_defValue; }
private:
int m_value;
int m_defValue;
int m_minVal;
int m_maxVal;
QCString m_valueString;
};
/** Class representing a Boolean type option.
*/
class ConfigBool : public ConfigOption
{
public:
ConfigBool(const char *name,const char *doc,bool defVal)
: ConfigOption(O_Bool)
{
m_name = name;
m_doc = doc;
m_value = defVal;
m_defValue = defVal;
}
QCString *valueStringRef() { return &m_valueString; }
bool *valueRef() { return &m_value; }
void convertStrToVal();
void substEnvVars();
void setValueString(const QCString &v) { m_valueString = v; }
void writeTemplate(TextStream &t,bool sl,bool upd);
void compareDoxyfile(TextStream &t);
void init() { m_value = m_defValue; }
private:
bool m_value;
bool m_defValue;
QCString m_valueString;
};
/** Section marker for obsolete options
*/
class ConfigObsolete : public ConfigOption
{
public:
ConfigObsolete(const char *name) : ConfigOption(O_Obsolete)
{ m_name = name; }
void writeTemplate(TextStream &,bool,bool);
void compareDoxyfile(TextStream &) {}
void substEnvVars() {}
};
/** Section marker for compile time optional options
*/
class ConfigDisabled : public ConfigOption
{
public:
ConfigDisabled(const char *name) : ConfigOption(O_Disabled)
{ m_name = name; }
void writeTemplate(TextStream &,bool,bool);
void compareDoxyfile(TextStream &) {}
void substEnvVars() {}
};
// some convenience macros for access the config options
#define ConfigImpl_getString(val) ConfigImpl::instance()->getString(__FILE__,__LINE__,val)
#define ConfigImpl_getInt(val) ConfigImpl::instance()->getInt(__FILE__,__LINE__,val)
#define ConfigImpl_getList(val) ConfigImpl::instance()->getList(__FILE__,__LINE__,val)
#define ConfigImpl_getEnum(val) ConfigImpl::instance()->getEnum(__FILE__,__LINE__,val)
#define ConfigImpl_getBool(val) ConfigImpl::instance()->getBool(__FILE__,__LINE__,val)
using ConfigOptionList = std::vector< std::unique_ptr<ConfigOption> >;
using ConfigOptionMap = std::unordered_map< std::string, ConfigOption* >;
/** Singleton for configuration variables.
*
* This object holds the global static variables
* read from a user-supplied configuration file.
* The static member instance() can be used to get
* a pointer to the one and only instance.
*
* Set all variables to their default values by
* calling Config::instance()->init()
*
*/
class ConfigImpl
{
public:
/////////////////////////////
// public API
/////////////////////////////
/*! Returns the one and only instance of this class */
static ConfigImpl *instance()
{
if (m_instance==0) m_instance = new ConfigImpl;
return m_instance;
}
/*! Delete the instance */
static void deleteInstance()
{
delete m_instance;
m_instance=0;
}
/*!
* @name Getting configuration values.
* @{
*/
/*! Returns the value of the string option with name \a fileName.
* The arguments \a num and \a name are for debugging purposes only.
* There is a convenience function Config_getString() for this.
*/
QCString &getString(const char *fileName,int num,const char *name) const;
/*! Returns the value of the list option with name \a fileName.
* The arguments \a num and \a name are for debugging purposes only.
* There is a convenience function Config_getList() for this.
*/
StringVector &getList(const char *fileName,int num,const char *name) const;
/*! Returns the value of the enum option with name \a fileName.
* The arguments \a num and \a name are for debugging purposes only.
* There is a convenience function Config_getEnum() for this.
*/
QCString &getEnum(const char *fileName,int num,const char *name) const;
/*! Returns the value of the integer option with name \a fileName.
* The arguments \a num and \a name are for debugging purposes only.
* There is a convenience function Config_getInt() for this.
*/
int &getInt(const char *fileName,int num,const char *name) const;
/*! Returns the value of the boolean option with name \a fileName.
* The arguments \a num and \a name are for debugging purposes only.
* There is a convenience function Config_getBool() for this.
*/
bool &getBool(const char *fileName,int num,const char *name) const;
/*! Returns the ConfigOption corresponding with \a name or 0 if
* the option is not supported.
*/
ConfigOption *get(const QCString &name) const
{
auto it = m_dict.find(name.str());
return it!=m_dict.end() ? it->second : nullptr;
}
/* @} */
/*!
* @name Adding configuration options.
* @{
*/
/*! Starts a new configuration section with \a name and description \a doc.
* \returns An object representing the option.
*/
ConfigInfo *addInfo(const char *name,const char *doc)
{
ConfigInfo *result = new ConfigInfo(name,doc);
m_options.push_back(std::unique_ptr<ConfigOption>(result));
return result;
}
/*! Adds a new string option with \a name and documentation \a doc.
* \returns An object representing the option.
*/
ConfigString *addString(const char *name,
const char *doc)
{
ConfigString *result = new ConfigString(name,doc);
m_options.push_back(std::unique_ptr<ConfigOption>(result));
m_dict.insert(std::make_pair(name,result));
return result;
}
/*! Adds a new enumeration option with \a name and documentation \a doc
* and initial value \a defVal.
* \returns An object representing the option.
*/
ConfigEnum *addEnum(const char *name,
const char *doc,
const char *defVal)
{
ConfigEnum *result = new ConfigEnum(name,doc,defVal);
m_options.push_back(std::unique_ptr<ConfigOption>(result));
m_dict.insert(std::make_pair(name,result));
return result;
}
/*! Adds a new string option with \a name and documentation \a doc.
* \returns An object representing the option.
*/
ConfigList *addList(const char *name,
const char *doc)
{
ConfigList *result = new ConfigList(name,doc);
m_options.push_back(std::unique_ptr<ConfigOption>(result));
m_dict.insert(std::make_pair(name,result));
return result;
}
/*! Adds a new integer option with \a name and documentation \a doc.
* The integer has a range between \a minVal and \a maxVal and a
* default value of \a defVal.
* \returns An object representing the option.
*/
ConfigInt *addInt(const char *name,
const char *doc,
int minVal,int maxVal,int defVal)
{
ConfigInt *result = new ConfigInt(name,doc,minVal,maxVal,defVal);
m_options.push_back(std::unique_ptr<ConfigOption>(result));
m_dict.insert(std::make_pair(name,result));
return result;
}
/*! Adds a new boolean option with \a name and documentation \a doc.
* The boolean has a default value of \a defVal.
* \returns An object representing the option.
*/
ConfigBool *addBool(const char *name,
const char *doc,
bool defVal)
{
ConfigBool *result = new ConfigBool(name,doc,defVal);
m_options.push_back(std::unique_ptr<ConfigOption>(result));
m_dict.insert(std::make_pair(name,result));
return result;
}
/*! Adds an option that has become obsolete. */
ConfigOption *addObsolete(const char *name)
{
ConfigObsolete *result = new ConfigObsolete(name);
m_obsolete.push_back(std::unique_ptr<ConfigOption>(result));
m_dict.insert(std::make_pair(name,result));
return result;
}
/*! Adds an option that has been disabled at compile time. */
ConfigOption *addDisabled(const char *name)
{
ConfigDisabled *result = new ConfigDisabled(name);
m_disabled.push_back(std::unique_ptr<ConfigOption>(result));
m_dict.insert(std::make_pair(name,result));
return result;
}
/*! @} */
/*! Writes a template configuration to stream \a t. If \a shortIndex
* is \c TRUE the description of each configuration option will
* be omitted.
*/
void writeTemplate(TextStream &t,bool shortIndex,bool updateOnly);
/*! Writes a the differences between the current configuration and the
* template configuration to stream \a t.
*/
void compareDoxyfile(TextStream &t);
void setHeader(const char *header) { m_header = header; }
/////////////////////////////
// internal API
/////////////////////////////
/*! Converts the string values read from the configuration file
* to real values for non-string type options (like int, and bools)
*/
void convertStrToVal();
/*! Sets default value in case value is empty
*/
void emptyValueToDefault();
/*! Replaces references to environment variable by the actual value
* of the environment variable.
*/
void substituteEnvironmentVars();
/*! Initialize config variables to their default value */
void init();
/*! Parse a configuration data in string \a str.
* \returns TRUE if successful, or FALSE if the string could not be
* parsed.
*/
bool parseString(const QCString &fn,const QCString &str,bool upd = FALSE);
/*! Parse a configuration file with name \a fn.
* \returns TRUE if successful, FALSE if the file could not be
* opened or read.
*/
bool parse(const QCString &fn,bool upd = FALSE);
/*! Called from the constructor, will add doxygen's default options
* to the configuration object
*/
void create();
/*! Append user start comment
*/
void appendStartComment(const QCString &u)
{
m_startComment += u;
}
/*! Append user comment
*/
void appendUserComment(const QCString &u)
{
m_userComment += u;
}
/*! Take the user start comment and reset it internally
* \returns user start comment
*/
QCString takeStartComment()
{
QCString result=m_startComment;
m_startComment.resize(0);
return substitute(result,"\r","");
}
/*! Take the user comment and reset it internally
* \returns user comment
*/
QCString takeUserComment()
{
QCString result=m_userComment;
m_userComment.resize(0);
return substitute(result,"\r","");
}
protected:
ConfigImpl()
{
m_initialized = FALSE;
create();
}
~ConfigImpl()
{
}
private:
ConfigOptionList m_options;
ConfigOptionList m_obsolete;
ConfigOptionList m_disabled;
ConfigOptionMap m_dict;
static ConfigImpl *m_instance;
QCString m_startComment;
QCString m_userComment;
bool m_initialized;
QCString m_header;
};
#endif
|