parser.h File Reference

Main parsing file, transform a user input into instruction from instruction.h. More...

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "parser_mallocs_frees.h"
#include "instruction.h"

Include dependency graph for parser.h:

Go to the source code of this file.

Data Structures
struct	parsingData
	Internal struct used when parsing. More...

Typedefs
typedef enum keyword	keyword
	The different keyword in the yacdb language, used for parsing.

Enumerations
enum	keyword {   where , from , in , set ,   with }
	The different keyword in the yacdb language, used for parsing. More...

Functions
void	remove_spaces (char **data)
	Increase data pointer past leading spaces.
int	parse_comma (char **data)
	Increase data pointer past a comma. More...
int	parse_equalsign (char **data)
	Increase data pointer past an equalsign. More...
char *	parse_ident (char **data)
	Parse the identifier at the start of the data, increase data pointer on success. More...
char *	parse_value (char **data)
	Parse a value, either an int or a "string", increase data pointer on success. More...
instrType	parse_instrtype (char **data)
	Parse the instrType at the start of the data, increase data pointer on success. More...
int	parse_expected_keyword (char **data, keyword expected)
	Parse the expected keyword, increase data pointer on success. More...
int	count_comma_list (char *data)
	Counts the size of the comma s and return an array of instruct to be executed eparated list at the stat of the string given. More...
int	parse_comma_list (char **data, charray *res)
	Parse a comma separated list, increase data pointer on success. More...
struct condition *	parse_condition (char **data)
	Parse a single condition (COL = VALUE), increase data pointer on success. More...
instr *	parse_instr (char *data)
	Parse an instruction. More...
instr *	parse_selinstr (char **data)
	Parse a SelInstr. More...
instr *	parse_crtinstr (char **data)
	Parse a CrtInstr. More...
instr *	parse_addinstr (char **data)
	Parse a AddInstr. More...
InstrArray *	parse_user_input (char *data)
	Parse the user input. More...

Detailed Description

Main parsing file, transform a user input into instruction from instruction.h.

Author

Mateo

Enumeration Type Documentation

keyword

enum keyword

The different keyword in the yacdb language, used for parsing.

Enumerator
where	where (in SelInstr)
from	from (in SelInstr)
in	in (in AddInstr)
set	Not implemented yet.
with	with (in CrtInstr)

Function Documentation

count_comma_list()

int count_comma_list

(

char *

data

)

Counts the size of the comma s and return an array of instruct to be executed eparated list at the stat of the string given.

Parameters

data	Pointer to current position in user input

Returns

int The number of element in the list

parse_addinstr()

instr * parse_addinstr

(

char **

data

)

Parse a AddInstr.

Parameters

data	Pointer to current position in user input

Returns

instr* The instruction parsed (casted in instr*)

parse_comma()

int parse_comma

(

char **

data

)

Increase data pointer past a comma.

Parameters

data	Pointer to current position in user input

Returns

1 on success, 0 on failure

parse_comma_list()

int parse_comma_list	(	char **	data,
		charray *	res
	)

Parse a comma separated list, increase data pointer on success.

Parameters

data	Pointer to current position in user input
res	Stores the result of the operation

Returns

1 on success, 0 on failure

parse_condition()

struct condition * parse_condition

(

char **

data

)

Parse a single condition (COL = VALUE), increase data pointer on success.

Parameters

data	Pointer to current position in user input

Returns

struct condition*

parse_crtinstr()

instr * parse_crtinstr

(

char **

data

)

Parse a CrtInstr.

Parameters

data	Pointer to current position in user input

Returns

instr* The instruction parsed (casted in instr*)

parse_equalsign()

int parse_equalsign

(

char **

data

)

Increase data pointer past an equalsign.

Parameters

data	Pointer to current position in user input

Returns

1 on success, 0 on failure

parse_expected_keyword()

int parse_expected_keyword	(	char **	data,
		keyword	expected
	)

Parse the expected keyword, increase data pointer on success.

Parameters

data	Pointer to current position in user input
expected	Expected keyword to be parsed

Returns

1 on success, 0 on failure

parse_ident()

char * parse_ident

(

char **

data

)

Parse the identifier at the start of the data, increase data pointer on success.

Parameters

data	Pointer to current position in user input

Returns

char* A pointer to the identifier parsed

parse_instr()

instr * parse_instr

(

char *

data

)

Parse an instruction.

Parameters

data	User input

Returns

instr* The instruction parsed (casted in instr*)

parse_instrtype()

instrType parse_instrtype

(

char **

data

)

Parse the instrType at the start of the data, increase data pointer on success.

Parameters

data	Pointer to current position in user input

Returns

instrType

parse_selinstr()

instr * parse_selinstr

(

char **

data

)

Parse a SelInstr.

Parameters

data	Pointer to current position in user input

Returns

instr* The instruction parsed (casted in instr*)

parse_user_input()

InstrArray * parse_user_input

(

char *

data

)

Parse the user input.

User input should be a semicolon separated list of instruction

Parameters

data	User input

Returns

InstrArray* The array of instruction parsed

parse_value()

char * parse_value

(

char **

data

)

Parse a value, either an int or a "string", increase data pointer on success.

Parameters

data	Pointer to current position in user input

Returns

char* A pointer to the value parsed