C++ SeekableReadStream::readLine方法代码示例

void ConfigManager::loadFromStream(SeekableReadStream &stream) {
	String domainName;
	String comment;
	Domain domain;
	int lineno = 0;

	_appDomain.clear();
	_gameDomains.clear();
	_miscDomains.clear();
	_transientDomain.clear();
	_domainSaveOrder.clear();

#ifdef ENABLE_KEYMAPPER
	_keymapperDomain.clear();
#endif

	// TODO: Detect if a domain occurs multiple times (or likewise, if
	// a key occurs multiple times inside one domain).

	while (!stream.eos() && !stream.err()) {
		lineno++;

		// Read a line
		String line = stream.readLine();

		if (line.size() == 0) {
			// Do nothing
		} else if (line[0] == '#') {
			// Accumulate comments here. Once we encounter either the start
			// of a new domain, or a key-value-pair, we associate the value
			// of the 'comment' variable with that entity.
			comment += line;
#ifdef _WIN32
			comment += "\r\n";
#else
			comment += "\n";
#endif
		} else if (line[0] == '[') {
			// It's a new domain which begins here.
			// Determine where the previously accumulated domain goes, if we accumulated anything.
			addDomain(domainName, domain);
			domain.clear();
			const char *p = line.c_str() + 1;
			// Get the domain name, and check whether it's valid (that
			// is, verify that it only consists of alphanumerics,
			// dashes and underscores).
			while (*p && (isalnum(*p) || *p == '-' || *p == '_'))
				p++;

			if (*p == '\0')
				error("Config file buggy: missing ] in line %d", lineno);
			else if (*p != ']')
				error("Config file buggy: Invalid character '%c' occurred in section name in line %d", *p, lineno);

			domainName = String(line.c_str() + 1, p);

			domain.setDomainComment(comment);
			comment.clear();

		} else {
			// This line should be a line with a 'key=value' pair, or an empty one.

			// Skip leading whitespaces
			const char *t = line.c_str();
			while (isspace(*t))
				t++;

			// Skip empty lines / lines with only whitespace
			if (*t == 0)
				continue;

			// If no domain has been set, this config file is invalid!
			if (domainName.empty()) {
				error("Config file buggy: Key/value pair found outside a domain in line %d", lineno);
			}

			// Split string at '=' into 'key' and 'value'. First, find the "=" delimeter.
			const char *p = strchr(t, '=');
			if (!p)
				error("Config file buggy: Junk found in line line %d: '%s'", lineno, t);

			// Extract the key/value pair
			String key(t, p);
			String value(p + 1);

			// Trim of spaces
			key.trim();
			value.trim();

			// Finally, store the key/value pair in the active domain
			domain[key] = value;

			// Store comment
			domain.setKVComment(key, comment);
			comment.clear();
		}
	}

	addDomain(domainName, domain); // Add the last domain found
}

bool ConfigFile::loadFromStream(SeekableReadStream &stream) {
	Section section;
	KeyValue kv;
	String comment;
	int lineno = 0;

	// TODO: Detect if a section occurs multiple times (or likewise, if
	// a key occurs multiple times inside one section).

	while (!stream.eos() && !stream.err()) {
		lineno++;

		// Read a line
		String line = stream.readLine();

		if (line.size() == 0) {
			// Do nothing
		} else if (line[0] == '#' || line[0] == ';' || line.hasPrefix("//")) {
			// Accumulate comments here. Once we encounter either the start
			// of a new section, or a key-value-pair, we associate the value
			// of the 'comment' variable with that entity. The semicolon and
			// C++-style comments are used for Living Books games in Mohawk.
			comment += line;
			comment += "\n";
		} else if (line[0] == '(') {
			// HACK: The following is a hack added by Kirben to support the
			// "map.ini" used in the HE SCUMM game "SPY Fox in Hold the Mustard".
			//
			// It would be nice if this hack could be restricted to that game,
			// but the current design of this class doesn't allow to do that
			// in a nice fashion (a "isMustard" parameter is *not* a nice
			// solution).
			comment += line;
			comment += "\n";
		} else if (line[0] == '[') {
			// It's a new section which begins here.
			const char *p = line.c_str() + 1;
			// Get the section name, and check whether it's valid (that
			// is, verify that it only consists of alphanumerics,
			// periods, dashes and underscores). Mohawk Living Books games
			// can have periods in their section names.
			while (*p && (isalnum(static_cast<unsigned char>(*p)) || *p == '-' || *p == '_' || *p == '.'))
				p++;

			if (*p == '\0')
				error("ConfigFile::loadFromStream: missing ] in line %d", lineno);
			else if (*p != ']')
				error("ConfigFile::loadFromStream: Invalid character '%c' occurred in section name in line %d", *p, lineno);

			// Previous section is finished now, store it.
			if (!section.name.empty())
				_sections.push_back(section);

			section.name = String(line.c_str() + 1, p);
			section.keys.clear();
			section.comment = comment;
			comment.clear();

			assert(isValidName(section.name));
		} else {
			// This line should be a line with a 'key=value' pair, or an empty one.

			// Skip leading whitespaces
			const char *t = line.c_str();
			while (isspace(static_cast<unsigned char>(*t)))
				t++;

			// Skip empty lines / lines with only whitespace
			if (*t == 0)
				continue;

			// If no section has been set, this config file is invalid!
			if (section.name.empty()) {
				error("ConfigFile::loadFromStream: Key/value pair found outside a section in line %d", lineno);
			}

			// Split string at '=' into 'key' and 'value'. First, find the "=" delimeter.
			const char *p = strchr(t, '=');
			if (!p)
				error("Config file buggy: Junk found in line line %d: '%s'", lineno, t);

			// Extract the key/value pair
			kv.key = String(t, p);
			kv.value = String(p + 1);

			// Trim of spaces
			kv.key.trim();
			kv.value.trim();

			// Store comment
			kv.comment = comment;
			comment.clear();

			assert(isValidName(kv.key));

			section.keys.push_back(kv);
		}
	}

	// Save last section
//.........这里部分代码省略.........

bool ConfigFile::loadFromStream(SeekableReadStream &stream) {
	char buf[MAXLINELEN];
	Section section;
	KeyValue kv;
	String comment;
	int lineno = 0;

	// TODO: Detect if a section occurs multiple times (or likewise, if
	// a key occurs multiple times inside one section).

	while (!stream.eos()) {
		lineno++;
		if (!stream.readLine(buf, MAXLINELEN))
			break;

		if (buf[0] == '#') {
			// Accumulate comments here. Once we encounter either the start
			// of a new section, or a key-value-pair, we associate the value
			// of the 'comment' variable with that entity.
			comment += buf;
			comment += "\n";
		} else if (buf[0] == '(') {
			// HACK: The following is a hack added by Kirben to support the
			// "map.ini" used in the HE SCUMM game "SPY Fox in Hold the Mustard".
			//
			// It would be nice if this hack could be restricted to that game,
			// but the current design of this class doesn't allow to do that
			// in a nice fashion (a "isMustard" parameter is *not* a nice
			// solution). 
			comment += buf;
			comment += "\n";
		} else if (buf[0] == '[') {
			// It's a new section which begins here.
			char *p = buf + 1;
			// Get the section name, and check whether it's valid (that
			// is, verify that it only consists of alphanumerics,
			// dashes and underscores).
			while (*p && (isalnum(*p) || *p == '-' || *p == '_'))
				p++;

			if (*p == '\0')
				error("ConfigFile::loadFromStream: missing ] in line %d", lineno);
			else if (*p != ']')
				error("ConfigFile::loadFromStream: Invalid character '%c' occured in section name in line %d", *p, lineno);

			*p = 0;

			// Previous section is finished now, store it.
			if (!section.name.empty())
				_sections.push_back(section);

			section.name = buf + 1;
			section.keys.clear();
			section.comment = comment;
			comment.clear();

			assert(isValidName(section.name));
		} else {
			// Skip leading & trailing whitespaces
			char *t = rtrim(ltrim(buf));

			// Skip empty lines
			if (*t == 0)
				continue;

			// If no section has been set, this config file is invalid!
			if (section.name.empty()) {
				error("ConfigFile::loadFromStream: Key/value pair found outside a section in line %d", lineno);
			}

			// Split string at '=' into 'key' and 'value'.
			char *p = strchr(t, '=');
			if (!p)
				error("ConfigFile::loadFromStream: Junk found in line line %d: '%s'", lineno, t);
			*p = 0;

			kv.key = rtrim(t);
			kv.value = ltrim(p + 1);
			kv.comment = comment;
			comment.clear();

			assert(isValidName(kv.key));

			section.keys.push_back(kv);
		}
	}

	// Save last section
	if (!section.name.empty())
		_sections.push_back(section);

	return (!stream.ioFailed() || stream.eos());
}