void Any::deserializeName(TextInput& ti, Token& token, std::string& name) {
debugAssert(token.type() == Token::SYMBOL);
std::string s = token.string();
while (!isOpen(s[0])) {
name += s;
// Skip newlines and comments
token = ti.readSignificant();
if (token.type() != Token::SYMBOL) {
throw ParseError(ti.filename(), token.line(), token.character(),
"Expected symbol while parsing Any");
}
s = token.string();
}
}
void Any::readUntilCommaOrClose(TextInput& ti, Token& token) {
while (!(((token.type() == Token::SYMBOL) &&
(isClose(token.string()[0]))) ||
isSeparator(token.string()[0]))) {
switch (token.type()) {
case Token::NEWLINE:
case Token::COMMENT:
// Consume
token = ti.read();
break;
default:
throw ParseError(ti.filename(), token.line(), token.character(),
"Expected a comma or close paren");
}
}
}
void Any::deserializeBody(TextInput& ti, Token& token) {
char closeSymbol = '}';
m_type = TABLE;
const char c = token.string()[0];
if (c != '{') {
m_type = ARRAY;
// Chose the appropriate close symbol
closeSymbol = (c == '(') ? ')' : ']';
}
// Allocate the underlying data structure
ensureData();
m_data->source.set(ti, token);
// Consume the open token
token = ti.read();
while (!((token.type() == Token::SYMBOL) && (token.string()[0] == closeSymbol))) {
// Read any leading comment. This must be done here (and not in the recursive deserialize
// call) in case the body contains only a comment.
std::string comment;
deserializeComment(ti, token, comment);
if ((token.type() == Token::SYMBOL) && (token.string()[0] == closeSymbol)) {
// We're done; this catches the case where the array is empty
break;
}
// Pointer the value being read
Any a;
std::string key;
if (m_type == TABLE) {
// Read the key
if (token.type() != Token::SYMBOL && token.type() != Token::STRING) {
throw ParseError(ti.filename(), token.line(), token.character(), "Expected a name");
}
key = token.string();
// Consume everything up to the = sign
token = ti.readSignificant();
if ((token.type() != Token::SYMBOL) || (token.string() != "=")) {
throw ParseError(ti.filename(), token.line(), token.character(), "Expected =");
}
else {
// Consume (don't consume comments--we want the value pointed to by a to get those).
token = ti.read();
}
}
a.deserialize(ti, token);
if (!comment.empty()) {
// Prepend the comment we read earlier
a.ensureData();
a.m_data->comment = trimWhitespace(comment + "\n" + a.m_data->comment);
}
if (m_type == TABLE) {
set(key, a);
}
else {
append(a);
}
// Read until the comma or close paren, discarding trailing comments and newlines
readUntilCommaOrClose(ti, token);
// Consume the comma
if (isSeparator(token.string()[0])) {
token = ti.read();
}
}
// Consume the close paren (to match other deserialize methods)
token = ti.read();
}
void Any::deserialize(TextInput& ti, Token& token) {
// Deallocate old data
dropReference();
m_type = NONE;
m_simpleValue.b = false;
// Skip leading newlines
while (token.type() == Token::NEWLINE) {
token = ti.read();
}
std::string comment;
if (token.type() == Token::COMMENT) {
deserializeComment(ti, token, comment);
}
if (token.type() == Token::END) {
// There should never be a comment without an Any following it; even
// if the file ends with some commented out stuff,
// that should not happen after a comma, so we'd never read that
// far in a proper file.
throw ParseError(ti.filename(), token.line(), token.character(),
"File ended without a properly formed Any");
}
switch (token.type()) {
case Token::STRING:
m_type = STRING;
ensureData();
*(m_data->value.s) = token.string();
m_data->source.set(ti, token);
break;
case Token::NUMBER:
m_type = NUMBER;
m_simpleValue.n = token.number();
ensureData();
m_data->source.set(ti, token);
break;
case Token::BOOLEAN:
m_type = BOOLEAN;
m_simpleValue.b = token.boolean();
ensureData();
m_data->source.set(ti, token);
break;
case Token::SYMBOL:
// Named Array, Named Table, Array, Table, or NONE
if (toUpper(token.string()) == "NONE") {
// Nothing left to do; we initialized to NONE originally
ensureData();
m_data->source.set(ti, token);
}
else {
// Array or Table
// Parse the name
// s must have at least one element or this would not have
// been parsed as a symbol
std::string name;
deserializeName(ti, token, name);
if (token.type() != Token::SYMBOL) {
throw ParseError(ti.filename(), token.line(), token.character(),
"Malformed Any TABLE or ARRAY; must start with [, (, or {");
}
if (isOpen(token.string()[0])) {
// Array or table
deserializeBody(ti, token);
}
else {
throw ParseError(ti.filename(), token.line(), token.character(),
"Malformed Any TABLE or ARRAY; must start with [, (, or {");
}
if (!name.empty()) {
ensureData();
m_data->name = name;
}
} // if NONE
break;
default:
throw ParseError(ti.filename(), token.line(), token.character(),
"Unexpected token");
} // switch
if (!comment.empty()) {
ensureData();
m_data->comment = comment;
}
if (m_type != ARRAY && m_type != TABLE) {
// Array and table already consumed their last token
token = ti.read();
}
}