Functions
int	Duro_init_interp (Duro_interp interp, RDB_exec_context ecp, RDB_environment envp, const char dbname)

void	Duro_destroy_interp (Duro_interp *interp)

RDB_environment *	Duro_dt_env (Duro_interp *interp)

RDB_transaction *	Duro_dt_tx (Duro_interp *interp)

void	Duro_println_error (const RDB_object *errobjp)

void	Duro_print_error_f (const RDB_object errobjp, FILE f)

void	Duro_dt_interrupt (Duro_interp *interp)

int	Duro_dt_execute_path (const char path, Duro_interp interp, RDB_exec_context *ecp)

int	Duro_dt_execute (FILE infp, Duro_interp interp, RDB_exec_context *ecp)

int	Duro_dt_execute_str (const char instr, Duro_interp interp, RDB_exec_context *ecp)

RDB_expression *	Duro_dt_parse_expr_str (const char instr, Duro_interp interp, RDB_exec_context *ecp)

const char *	Duro_dt_prompt (Duro_interp *interp)

RDB_object *	Duro_lookup_var (const char name, Duro_interp interp, RDB_exec_context *ecp)

RDB_object *	Duro_lookup_sym (const char name, Duro_interp interp, int flagsp, RDB_exec_context ecp)

int	Duro_dt_put_creop_info (Duro_interp interp, const char lang, Duro_uop_info infop, RDB_exec_context ecp)

Duro_uop_info *	Duro_dt_get_creop_info (const Duro_interp interp, const char lang)

Detailed Description

#include <dli/iinterp.h>

Function Documentation

◆ Duro_destroy_interp()

void Duro_destroy_interp ( Duro_interp * interp )

Release resources allocated during interpreter initialization. If a database environment is connected it will be closed.

References RDB_close_env(), RDB_destroy_exec_context(), RDB_destroy_obj(), RDB_free(), and RDB_init_exec_context().

◆ Duro_dt_execute()

int Duro_dt_execute	(	FILE *	infp,
		Duro_interp *	interp,
		RDB_exec_context *	ecp
	)

Read statements from input stream *infp and execute them. If the input is a terminal, a function for reading lines must be provided using RDB_parse_set_read_line_fn().

References Duro_println_error(), RDB_bool_to_obj(), RDB_clear_err(), RDB_ec_set_property(), RDB_free(), RDB_get_err(), and RDB_init_obj().

◆ Duro_dt_execute_path()

int Duro_dt_execute_path	(	const char *	path,
		Duro_interp *	interp,
		RDB_exec_context *	ecp
	)

Read statements from file given by path and execute them. If path is NULL, read from standard input. If the input is a terminal, a function for reading lines must be provided using RDB_parse_set_read_line_fn().

◆ Duro_dt_execute_str()

int Duro_dt_execute_str	(	const char *	instr,
		Duro_interp *	interp,
		RDB_exec_context *	ecp
	)

Read statements from string instr and execute them.

References RDB_ec_set_property(), and RDB_free().

◆ Duro_dt_get_creop_info()

Duro_uop_info* Duro_dt_get_creop_info	(	const Duro_interp *	interp,
		const char *	lang
	)

Return the information about operator creation that was previously pass to Duro_dt_put_creop_info().

◆ Duro_dt_interrupt()

void Duro_dt_interrupt ( Duro_interp * interp )

Make the interpreter raise a system_error. This function may be called from a signal handler.

◆ Duro_dt_prompt()

const char* Duro_dt_prompt ( Duro_interp * interp )

Return a pointer to the interp->prompt that is used in interactive mode.

References RDB_obj_string().

◆ Duro_dt_put_creop_info()

int Duro_dt_put_creop_info	(	Duro_interp *	interp,
		const char *	lang,
		Duro_uop_info *	infop,
		RDB_exec_context *	ecp
	)

Specifies how to create a user-defined operator implemented in the language given by argument lang.

If the interpreter encounters a statement of the form

OPERATOR <opname> ( <parameters> ) RETURNS <type> EXTERN '<lang>' '<external_ref>'; END OPERATOR;

it will call RDB_create_ro_op() with arguments libname and symname set to infop->libname and info->ro_op_symname, respectively.

If the interpreter encounters a statement of the form

OPERATOR <opname> ( <parameters> ) UPDATES { <update parameters> } EXTERN '<lang>' '<external_ref>'; END OPERATOR;

it will call RDB_create_update_op() with arguments libname and symname set to infop->libname and info->update_op_symname, respectively.

References RDB_errno_to_error().

◆ Duro_init_interp()

int Duro_init_interp	(	Duro_interp *	interp,
		RDB_exec_context *	ecp,
		RDB_environment *	envp,
		const char *	dbname
	)

Initialize the interpreter.

References RDB_alloc(), RDB_bool_to_obj(), RDB_destroy_obj(), RDB_init_obj(), RDB_string_to_obj(), RDB_parameter::typ, and RDB_parameter::update.

◆ Duro_lookup_sym()

RDB_object* Duro_lookup_sym	(	const char *	name,
		Duro_interp *	interp,
		int *	flagsp,
		RDB_exec_context *	ecp
	)

Looks up a variable or constant and returns a pointer to the RDB_object containing its value.

Referenced by Duro_lookup_var().

◆ Duro_lookup_var()

RDB_object* Duro_lookup_var	(	const char *	name,
		Duro_interp *	interp,
		RDB_exec_context *	ecp
	)

Looks up a variable and returns a pointer to the RDB_object containing its value.

References Duro_lookup_sym().

◆ Duro_print_error_f()

void Duro_print_error_f	(	const RDB_object *	errobjp,
		FILE *	f
	)

Print an error to an output stream.

References RDB_destroy_exec_context(), RDB_destroy_obj(), RDB_init_exec_context(), RDB_init_obj(), RDB_obj_property(), RDB_obj_string(), RDB_obj_type(), and RDB_type_name().

Referenced by Duro_println_error().

◆ Duro_println_error()

void Duro_println_error ( const RDB_object * errobjp )

Print an error to stderr, followed by a newline.

References Duro_print_error_f().

Referenced by Duro_dt_execute().

Functions