namespace GiNaC {
-/** Archive an expression.
- * @param ex the expression to be archived
- * @param name name under which the expression is stored */
void archive::archive_ex(const ex &e, const char *name)
{
// Create root node (which recursively archives the whole expression tree)
}
-/** Retrieve expression from archive by name.
- * @param sym_lst list of pre-defined symbols */
ex archive::unarchive_ex(const lst &sym_lst, const char *name) const
{
// Find root node
goto found;
i++;
}
- throw (std::logic_error("expression with name '" + name_string + "' not found in archive"));
+ throw (std::runtime_error("expression with name '" + name_string + "' not found in archive"));
found:
// Recursively unarchive all nodes, starting at the root node
return nodes[i->root].unarchive(sym_lst);
}
-/** Retrieve expression from archive by index.
- * @param sym_lst list of pre-defined symbols */
ex archive::unarchive_ex(const lst &sym_lst, unsigned int index) const
{
if (index >= exprs.size())
return nodes[exprs[index].root].unarchive(sym_lst);
}
-/** Retrieve expression and its name from archive by index.
- * @param sym_lst list of pre-defined symbols */
ex archive::unarchive_ex(const lst &sym_lst, std::string &name, unsigned int index) const
{
if (index >= exprs.size())
return nodes[exprs[index].root].unarchive(sym_lst);
}
-
-/** Return number of archived expressions. */
unsigned int archive::num_expressions(void) const
{
return exprs.size();
}
+const archive_node &archive::get_top_node(unsigned int index) const
+{
+ if (index >= exprs.size())
+ throw (std::range_error("index of archived expression out of range"));
+
+ return nodes[exprs[index].root];
+}
+
/*
* Archive file format
}
-/** Add property of type "bool" to node. */
void archive_node::add_bool(const std::string &name, bool value)
{
props.push_back(property(a.atomize(name), PTYPE_BOOL, value));
}
-/** Add property of type "unsigned int" to node. */
void archive_node::add_unsigned(const std::string &name, unsigned int value)
{
props.push_back(property(a.atomize(name), PTYPE_UNSIGNED, value));
}
-/** Add property of type "string" to node. */
void archive_node::add_string(const std::string &name, const std::string &value)
{
props.push_back(property(a.atomize(name), PTYPE_STRING, a.atomize(value)));
}
-/** Add property of type "ex" to node. */
void archive_node::add_ex(const std::string &name, const ex &value)
{
// Recursively create an archive_node and add its ID to the properties of this node
}
-/** Retrieve property of type "bool" from node.
- * @return "true" if property was found, "false" otherwise */
bool archive_node::find_bool(const std::string &name, bool &ret) const
{
archive_atom name_atom = a.atomize(name);
return false;
}
-/** Retrieve property of type "unsigned" from node.
- * @return "true" if property was found, "false" otherwise */
bool archive_node::find_unsigned(const std::string &name, unsigned int &ret) const
{
archive_atom name_atom = a.atomize(name);
return false;
}
-/** Retrieve property of type "string" from node.
- * @return "true" if property was found, "false" otherwise */
bool archive_node::find_string(const std::string &name, std::string &ret) const
{
archive_atom name_atom = a.atomize(name);
return false;
}
-/** Retrieve property of type "ex" from node.
- * @return "true" if property was found, "false" otherwise */
bool archive_node::find_ex(const std::string &name, ex &ret, const lst &sym_lst, unsigned int index) const
{
archive_atom name_atom = a.atomize(name);
return true;
}
+const archive_node &archive_node::find_ex_node(const std::string &name, unsigned int index) const
+{
+ archive_atom name_atom = a.atomize(name);
+ std::vector<property>::const_iterator i = props.begin(), iend = props.end();
+ unsigned int found_index = 0;
+ while (i != iend) {
+ if (i->type == PTYPE_NODE && i->name == name_atom) {
+ if (found_index == index)
+ return a.get_node(i->value);
+ found_index++;
+ }
+ i++;
+ }
+ throw (std::runtime_error("property with name '" + name + "' not found in archive node"));
+}
+
+
+void archive_node::get_properties(std::vector<archive_node::property_info> &v) const
+{
+ v.clear();
+ std::vector<property>::const_iterator i = props.begin(), iend = props.end();
+ while (i != iend) {
+ property_type type = i->type;
+ string name = a.unatomize(i->name);
+
+ std::vector<property_info>::iterator a = v.begin(), aend = v.end();
+ bool found = false;
+ while (a != aend) {
+ if (a->type == type && a->name == name) {
+ a->count++;
+ found = true;
+ break;
+ }
+ a++;
+ }
+ if (!found)
+ v.push_back(property_info(type, name));
+ i++;
+ }
+}
+
/** Convert archive node to GiNaC expression. */
ex archive_node::unarchive(const lst &sym_lst) const
}
+/** Assignment operator of property_info. */
+const archive_node::property_info &archive_node::property_info::operator=(const property_info &other)
+{
+ if (this != &other) {
+ type = other.type;
+ name = other.name;
+ count = other.count;
+ }
+ return *this;
+}
+
/** Assignment operator of property. */
const archive_node::property &archive_node::property::operator=(const property &other)
{
}
-/** Clear all archived expressions. */
void archive::clear(void)
{
atoms.clear();
friend std::istream &operator>>(std::istream &is, archive_node &ar);
public:
+ /** Property data types */
+ enum property_type {
+ PTYPE_BOOL,
+ PTYPE_UNSIGNED,
+ PTYPE_STRING,
+ PTYPE_NODE
+ };
+
+ /** Information about a stored property. A vector of these structures
+ * is returned by get_properties().
+ * @see get_properties */
+ struct property_info {
+ property_info() {}
+ property_info(property_type t, const std::string &n, unsigned c = 1) : type(t), name(n), count(c) {}
+ ~property_info() {}
+
+ property_info(const property_info &other) : type(other.type), name(other.name), count(other.count) {}
+ const property_info &operator=(const property_info &other);
+
+ property_type type; /**< Data type of property. */
+ std::string name; /**< Name of property. */
+ unsigned count; /**< Number of occurrences. */
+ };
+
archive_node() : a(*dummy_ar_creator()), has_expression(false) {} // hack for cint which always requires a default constructor
archive_node(archive &ar) : a(ar), has_expression(false) {}
archive_node(archive &ar, const ex &expr);
archive_node(const archive_node &other);
const archive_node &operator=(const archive_node &other);
- bool has_same_ex_as(const archive_node &other) const;
-
+ /** Add property of type "bool" to node. */
void add_bool(const std::string &name, bool value);
+
+ /** Add property of type "unsigned int" to node. */
void add_unsigned(const std::string &name, unsigned int value);
+
+ /** Add property of type "string" to node. */
void add_string(const std::string &name, const std::string &value);
+
+ /** Add property of type "ex" to node. */
void add_ex(const std::string &name, const ex &value);
+ /** Retrieve property of type "bool" from node.
+ * @return "true" if property was found, "false" otherwise */
bool find_bool(const std::string &name, bool &ret) const;
+
+ /** Retrieve property of type "unsigned" from node.
+ * @return "true" if property was found, "false" otherwise */
bool find_unsigned(const std::string &name, unsigned int &ret) const;
+
+ /** Retrieve property of type "string" from node.
+ * @return "true" if property was found, "false" otherwise */
bool find_string(const std::string &name, std::string &ret) const;
+
+ /** Retrieve property of type "ex" from node.
+ * @return "true" if property was found, "false" otherwise */
bool find_ex(const std::string &name, ex &ret, const lst &sym_lst, unsigned int index = 0) const;
+ /** Retrieve property of type "ex" from node, returning the node of
+ * the sub-expression. */
+ const archive_node &find_ex_node(const std::string &name, unsigned int index = 0) const;
+
+ /** Return vector of properties stored in node. */
+ void get_properties(std::vector<property_info> &v) const;
+
ex unarchive(const lst &sym_lst) const;
+ bool has_same_ex_as(const archive_node &other) const;
void forget(void);
void printraw(std::ostream &os) const;
private:
static archive* dummy_ar_creator(void);
- /** Property data types */
- enum property_type {
- PTYPE_BOOL,
- PTYPE_UNSIGNED,
- PTYPE_STRING,
- PTYPE_NODE
- };
-
/** Archived property (data type, name and associated data) */
struct property {
property() {}
property(const property &other) : type(other.type), name(other.name), value(other.value) {}
const property &operator=(const property &other);
- property_type type; /**< Data type of property. */
- archive_atom name; /**< Name of property. */
- unsigned int value; /**< Stored value. */
+ property_type type; /**< Data type of property. */
+ archive_atom name; /**< Name of property. */
+ unsigned int value; /**< Stored value. */
};
/** Reference to the archive to which this node belongs. */
/** Construct archive from expression using the specified name. */
archive(const ex &e, const char *n) {archive_ex(e, n);}
- archive_node_id add_node(const archive_node &n);
- archive_node &get_node(archive_node_id id);
-
+ /** Archive an expression.
+ * @param e the expression to be archived
+ * @param name name under which the expression is stored */
void archive_ex(const ex &e, const char *name);
+
+ /** Retrieve expression from archive by name.
+ * @param sym_lst list of pre-defined symbols */
ex unarchive_ex(const lst &sym_lst, const char *name) const;
+
+ /** Retrieve expression from archive by index.
+ * @param sym_lst list of pre-defined symbols
+ * @see count_expressions */
ex unarchive_ex(const lst &sym_lst, unsigned int index = 0) const;
+
+ /** Retrieve expression and its name from archive by index.
+ * @param sym_lst list of pre-defined symbols
+ * @param name receives the name of the expression
+ * @see count_expressions */
ex unarchive_ex(const lst &sym_lst, std::string &name, unsigned int index = 0) const;
+
+ /** Return number of archived expressions. */
unsigned int num_expressions(void) const;
+ /** Return reference to top node of an expression specified by index. */
+ const archive_node &get_top_node(unsigned int index = 0) const;
+
+ /** Clear all archived expressions. */
void clear(void);
+ archive_node_id add_node(const archive_node &n);
+ archive_node &get_node(archive_node_id id);
+
void forget(void);
void printraw(std::ostream &os) const;
git://www.ginac.de / ginac.git / commitdiff