parser.c File Reference

#include "symbolic4.h"

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Functions
expression_type	get_expression_type (char source)
	Determines the expression type of a character. More...
expression_identifier	get_value_identifier (char source)
	Determines the expression identifier of a character of the type EXPT_VALUE. More...
expression_identifier	get_operator_identifier (char source)
	Determines the expression identifier of a character of the type EXPT_OPERATION. More...
expression_identifier	get_control_identifier (char source)
	Determines the expression identifier of a character of the type EXPT_CONTROL. More...
void	append_multiplication_if_necessary (expression *tokens)
	Appends a multiplication expression if necessary. More...
uint8_t	tokenize_buffer (expression *tokens, char *buffer)
uint8_t	string_to_literal (expression **result, const char *source)
uint8_t	tokenize_value_expression (expression *tokens, uint8_t *index, const char *source)
void	tokenize_operator_expression (expression *tokens, char source)
void	tokenize_control_expression (expression *tokens, char source)
uint8_t	tokenize (expression *tokens, const char *query)
uint8_t	validate (expression *tokens)
void	merge_expressions_with_operator (expression *output_stack, expression *operator_stack)
void	parse_control_expression (expression *tokens, uint8_t *index, expression *output_stack, expression *operator_stack)
void	parse (expression *tokens)

Function Documentation

append_multiplication_if_necessary()

void append_multiplication_if_necessary

(

expression *

tokens

)

Appends a multiplication expression if necessary.

This function appends a multiplication if

• the token array is not empty
• and the last expression in the token array is either a value or a close parenthesis.

Parameters

[in,out]

tokens

The token array the multiplication should be appended to.

Definition at line 146 of file parser.c.

get_control_identifier()

expression_identifier get_control_identifier

(

char

source

)

Determines the expression identifier of a character of the type EXPT_CONTROL.

Parameters

[in]

source

The character to analyze.

Returns

• The expression type or EXPT_NULL when an unexpected character was encountered.

Definition at line 118 of file parser.c.

get_expression_type()

expression_type get_expression_type

(

char

source

)

Determines the expression type of a character.

It can't distinguish between EXPT_VALUE and EXPT_FUNCTION.

Parameters

[in]

source

The character to analyze.

Returns

• The expression type or EXPT_NULL when an unexpected character was encountered.

Definition at line 42 of file parser.c.

get_operator_identifier()

expression_identifier get_operator_identifier

(

char

source

)

Determines the expression identifier of a character of the type EXPT_OPERATION.

Parameters

[in]

source

The character to analyze.

Returns

• The expression type or EXPT_NULL when an unexpected character was encountered.

Definition at line 88 of file parser.c.

get_value_identifier()

expression_identifier get_value_identifier

(

char

source

)

Determines the expression identifier of a character of the type EXPT_VALUE.

Parameters

[in]

source

The character to analyze.

Returns

• The expression type or EXPT_NULL when an unexpected character was encountered.

Definition at line 66 of file parser.c.

merge_expressions_with_operator()

void merge_expressions_with_operator	(	expression *	output_stack,
		expression *	operator_stack
	)

Definition at line 375 of file parser.c.

parse()

void parse

(

expression *

tokens

)

Definition at line 451 of file parser.c.

parse_control_expression()

void parse_control_expression	(	expression *	tokens,
		uint8_t *	index,
		expression *	output_stack,
		expression *	operator_stack
	)

Definition at line 411 of file parser.c.

string_to_literal()

uint8_t string_to_literal	(	expression **	result,
		const char *	source
	)

Definition at line 201 of file parser.c.

tokenize()

uint8_t tokenize	(	expression *	tokens,
		const char *	query
	)

Definition at line 293 of file parser.c.

tokenize_buffer()

uint8_t tokenize_buffer	(	expression *	tokens,
		char *	buffer
	)

Definition at line 152 of file parser.c.

tokenize_control_expression()

void tokenize_control_expression	(	expression *	tokens,
		char	source
	)

Definition at line 281 of file parser.c.

tokenize_operator_expression()

void tokenize_operator_expression	(	expression *	tokens,
		char	source
	)

Definition at line 268 of file parser.c.

tokenize_value_expression()

uint8_t tokenize_value_expression	(	expression *	tokens,
		uint8_t *	index,
		const char *	source
	)

Definition at line 241 of file parser.c.

validate()

uint8_t validate

(

expression *

tokens

)

Definition at line 321 of file parser.c.