parser.h File Reference

#include "Error.h"

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Classes
struct	parser_arg
	Pass parameters by reference to a parser. More...
Defines
#define	FALSE   0
#define	ID_MAX   256
#define	TRUE   1
#define	YY_NO_UNPUT   1
#define	YYDEBUG   1
Functions
int	check_byte (const char *val)
	Is the value a valid byte?
int	check_float32 (const char *val)
	Is the value a valid float?
int	check_float64 (const char *val)
int	check_int16 (const char *val)
	Is the value a valid integer?
int	check_int32 (const char *val)
int	check_uint16 (const char *val)
int	check_uint32 (const char *val)
int	check_url (const char *val)
	Is the value a valid URL?
bool	is_keyword (string id, const string &keyword)
void	save_str (string &dst, const char *src, const int)
void	save_str (char *dst, const char *src, const int line_num)
	Save a string to a temporary variable during the parse.
parse_error
Generate error messages for the various parsers. parser_error() generates error messages for the various parsers used by libdap. There are two versions of the function, one which takes a const char *message and a const int line_num and writes the message and line number too stderr and a second which takes an additional parser_arg arg parameter and writes the error message into an Error object which is returned to the caller via the arg parameter. Note: {The second version of this function also accepts a third parameter (const char *context) which can be used to provide an additional line of information beyond what is in the string message.} Returns: void
void	parse_error (const string &msg, const int line_num, const char *context=0)
void	parse_error (parser_arg *arg, const char *s, const int line_num=0, const char *context=0)

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Define Documentation

#define FALSE   0

Definition at line 51 of file parser.h.

#define ID_MAX   256

Definition at line 47 of file parser.h.

#define TRUE   1

Definition at line 50 of file parser.h.

#define YY_NO_UNPUT   1

Definition at line 45 of file parser.h.

#define YYDEBUG   1

Definition at line 43 of file parser.h.

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Function Documentation

int check_byte

(

const char *

val

)

Check to see if val is a valid byte value. If not, generate an error message using parser_error(). There are two versions of check_byte(), one which calls parser_error() and prints an error message to stderr an one which calls parser_error() and generates and Error object.

Returns:

Returns: True if val is a byte value, False otherwise.

Definition at line 157 of file parser-util.cc.

References DBG, DODS_SCHAR_MIN, DODS_UCHAR_MAX, FALSE, and TRUE.

int check_float32

(

const char *

val

)

Like check_byte() but for 64-bit float values.

Definition at line 247 of file parser-util.cc.

References DBG, DODS_FLT_MAX, DODS_FLT_MIN, FALSE, and TRUE.

int check_float64

(

const char *

val

)

Definition at line 275 of file parser-util.cc.

References DBG, DODS_DBL_MAX, DODS_DBL_MIN, FALSE, and TRUE.

int check_int16

(

const char *

val

)

Like check_byte() but for 32-bit integers (check_uint() is for unsigned integers).

Definition at line 183 of file parser-util.cc.

References DODS_SHRT_MAX, DODS_SHRT_MIN, FALSE, and TRUE.

int check_int32

(

const char *

val

)

Definition at line 215 of file parser-util.cc.

References DODS_INT_MAX, DODS_INT_MIN, FALSE, and TRUE.

int check_uint16

(

const char *

val

)

Definition at line 199 of file parser-util.cc.

References DODS_USHRT_MAX, FALSE, and TRUE.

int check_uint32

(

const char *

val

)

Definition at line 231 of file parser-util.cc.

References FALSE, and TRUE.

int check_url

(

const char *

val

)

Currently this function always returns true.

Definition at line 332 of file parser-util.cc.

References TRUE.

bool is_keyword	(	string	id,
		const string &	keyword
	)

Definition at line 149 of file parser-util.cc.

References DBG, downcase(), and prune_spaces().

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void parse_error	(	const string &	msg,
		const int	line_num,
		const char *	context = 0
	)

Definition at line 128 of file parser-util.cc.

References parse_error().

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void parse_error	(	parser_arg *	arg,
		const char *	s,
		const int	line_num = 0,
		const char *	context = 0
	)

Definition at line 68 of file parser-util.cc.

References append_long_to_string(), FALSE, parser_arg::set_error(), parser_arg::set_status(), and unknown_error.

Referenced by parse_error(), and save_str().

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void save_str	(	string &	dst,
		const char *	src,
		const	int
	)

Definition at line 144 of file parser-util.cc.

void save_str	(	char *	dst,
		const char *	src,
		const int	line_num
	)

Given a string (const char *src), save it to the temporary variable pointed to by dst. If the string is longer than ID_MAX, generate and error indicating that src was truncated to ID_MAX characters during the copy operation. There are two versions of this function; one calls the version of parser_error() which writes to stderr. The version which accepts the parser_arg *arg argument calls the version of parser_error() which generates and Error object.

Returns:

void

Definition at line 133 of file parser-util.cc.

References ID_MAX, long_to_string(), and parse_error().

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