bfc_lexer.c File Reference

Brainfuck lexer implementation. More...

#include "bfc_lexer.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include "bfc_memory.h"

Macros
#define	EMIT_TOKEN(toktype)
#define	X(tok_type, tok_char)

Functions
bfc_error_t	bfc_lex (bfc_token_stream_t **token_stream, bfc_program_t const *const program, bfc_args_t const cmd_args)
	Scans the source buffer and builds a compact, location-aware token stream.

Detailed Description

Brainfuck lexer implementation.

Scans source bytes, tracks one-based positions, applies the optional semicolon-comment extension, and emits tokens.

Macro Definition Documentation

EMIT_TOKEN

#define EMIT_TOKEN

(

toktype

)

Value:

if (!in_comment) tok_stream->tokens[token_list_size++] = bfc_make_token((toktype), line, col);

X

#define X	(		tok_type,
			tok_char )

Value:

case tok_char: {          \
    EMIT_TOKEN(tok_type); \
}                         \
break;

Function Documentation

bfc_lex()

bfc_error_t bfc_lex	(	bfc_token_stream_t **	token_stream,
		bfc_program_t const *const	program,
		bfc_args_t const	cmd_args )

Scans the source buffer and builds a compact, location-aware token stream.

Tokenizes a loaded Brainfuck source program.

Scans the source buffer and builds a compact, location-aware token stream.

Parameters

[out]	token_stream	Receives the allocated token stream.
[in]	program	Loaded source program.
[in]	cmd_args	Lexer-affecting command-line options.

Returns

BFC_ERR_OK on success; otherwise an allocation error.

Note

Release the result with bfc_token_stream_destroy().