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deps/libgit2/src/libgit2/config_parse.c  view on Meta::CPAN

		git__free(line);
		set_parse_error(reader, 0, "missing ']' in section header");
		return -1;
	}

	GIT_ERROR_CHECK_ALLOC_ADD(&line_len, (size_t)(name_end - line), 1);
	name = git__malloc(line_len);
	GIT_ERROR_CHECK_ALLOC(name);

	name_length = 0;
	pos = 0;

	/* Make sure we were given a section header */
	c = line[pos++];
	GIT_ASSERT(c == '[');

	c = line[pos++];

	do {
		if (git__isspace(c)){
			name[name_length] = '\0';
			result = parse_subsection_header(reader, line, pos, name, section_out);
			git__free(line);
			git__free(name);
			return result;
		}

		if (!config_keychar(c) && c != '.') {
			set_parse_error(reader, pos, "unexpected character in header");
			goto fail_parse;
		}

		name[name_length++] = (char)git__tolower(c);

	} while ((c = line[pos++]) != ']');

	if (line[pos - 1] != ']') {
		set_parse_error(reader, pos, "unexpected end of file");
		goto fail_parse;
	}

	git__free(line);

	name[name_length] = 0;
	*section_out = name;

	return pos;

fail_parse:
	git__free(line);
	git__free(name);
	return -1;
}

static int skip_bom(git_parse_ctx *parser)
{
	git_str buf = GIT_STR_INIT_CONST(parser->content, parser->content_len);
	git_str_bom_t bom;
	int bom_offset = git_str_detect_bom(&bom, &buf);

	if (bom == GIT_STR_BOM_UTF8)
		git_parse_advance_chars(parser, bom_offset);

	/* TODO: reference implementation is pretty stupid with BoM */

	return 0;
}

/*
	(* basic types *)
	digit = "0".."9"
	integer = digit { digit }
	alphabet = "a".."z" + "A" .. "Z"

	section_char = alphabet | "." | "-"
	extension_char = (* any character except newline *)
	any_char = (* any character *)
	variable_char = "alphabet" | "-"


	(* actual grammar *)
	config = { section }

	section = header { definition }

	header = "[" section [subsection | subsection_ext] "]"

	subsection = "." section
	subsection_ext = "\"" extension "\""

	section = section_char { section_char }
	extension = extension_char { extension_char }

	definition = variable_name ["=" variable_value] "\n"

	variable_name = variable_char { variable_char }
	variable_value = string | boolean | integer

	string = quoted_string | plain_string
	quoted_string = "\"" plain_string "\""
	plain_string = { any_char }

	boolean = boolean_true | boolean_false
	boolean_true = "yes" | "1" | "true" | "on"
	boolean_false = "no" | "0" | "false" | "off"
*/

/* '\"' -> '"' etc */
static int unescape_line(
	char **out, bool *is_multi, const char *ptr, int quote_count)
{
	char *str, *fixed, *esc;
	size_t ptr_len = strlen(ptr), alloc_len;

	*is_multi = false;

	if (GIT_ADD_SIZET_OVERFLOW(&alloc_len, ptr_len, 1) ||
		(str = git__malloc(alloc_len)) == NULL) {
		return -1;
	}