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let Parser store the stream it is working on
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@27457 a592a061-630c-0410-9148-cb99ea01b6c8
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@ -131,17 +131,22 @@ string Token::asInput() const
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Parser::Parser(istream & is)
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: lineno_(0), pos_(0)
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: lineno_(0), pos_(0), iss_(0), is_(is)
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{
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tokenize(is);
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tokenize();
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}
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Parser::Parser(string const & s)
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: lineno_(0), pos_(0)
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: lineno_(0), pos_(0), iss_(new istringstream(s)), is_(*iss_)
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{
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istringstream is(s);
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tokenize(is);
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tokenize();
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}
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Parser::~Parser()
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{
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delete iss_;
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}
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@ -351,33 +356,33 @@ string const Parser::verbatimEnvironment(string const & name)
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}
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void Parser::tokenize_one(istream & is)
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void Parser::tokenize_one()
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{
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char c;
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if (!is.get(c))
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if (!is_.get(c))
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return;
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//cerr << "reading c: " << c << "\n";
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switch (catcode(c)) {
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case catSpace: {
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string s(1, c);
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while (is.get(c) && catcode(c) == catSpace)
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while (is_.get(c) && catcode(c) == catSpace)
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s += c;
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if (catcode(c) != catSpace)
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is.putback(c);
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is_.putback(c);
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push_back(Token(s, catSpace));
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break;
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}
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case catNewline: {
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++lineno_;
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string s(1, getNewline(is, c));
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while (is.get(c) && catcode(c) == catNewline) {
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string s(1, getNewline(is_, c));
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while (is_.get(c) && catcode(c) == catNewline) {
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++lineno_;
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s += getNewline(is, c);
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s += getNewline(is_, c);
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}
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if (catcode(c) != catNewline)
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is.putback(c);
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is_.putback(c);
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push_back(Token(s, catNewline));
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break;
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}
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@ -386,11 +391,11 @@ void Parser::tokenize_one(istream & is)
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// We don't treat "%\n" combinations here specially because
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// we want to preserve them in the preamble
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string s;
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while (is.get(c) && catcode(c) != catNewline)
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while (is_.get(c) && catcode(c) != catNewline)
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s += c;
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// handle possible DOS line ending
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if (catcode(c) == catNewline)
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c = getNewline(is, c);
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c = getNewline(is_, c);
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// Note: The '%' at the beginning and the '\n' at the end
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// of the comment are not stored.
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++lineno_;
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@ -399,17 +404,17 @@ void Parser::tokenize_one(istream & is)
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}
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case catEscape: {
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is.get(c);
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if (!is) {
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is_.get(c);
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if (!is_) {
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error("unexpected end of input");
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} else {
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string s(1, c);
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if (catcode(c) == catLetter) {
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// collect letters
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while (is.get(c) && catcode(c) == catLetter)
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while (is_.get(c) && catcode(c) == catLetter)
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s += c;
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if (catcode(c) != catLetter)
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is.putback(c);
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is_.putback(c);
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}
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push_back(Token(s, catEscape));
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}
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@ -427,7 +432,7 @@ void Parser::tokenize_one(istream & is)
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}
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void Parser::tokenize(istream & is)
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void Parser::tokenize()
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{
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static bool init_done = false;
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@ -436,8 +441,8 @@ void Parser::tokenize(istream & is)
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init_done = true;
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}
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while (is)
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tokenize_one(is);
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while (is_)
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tokenize_one();
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}
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@ -122,6 +122,8 @@ public:
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Parser(std::istream & is);
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///
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Parser(std::string const & s);
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///
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~Parser();
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///
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int lineno() const { return lineno_; }
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@ -216,6 +218,10 @@ private:
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std::vector<Token> tokens_;
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///
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unsigned pos_;
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///
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std::istringstream * iss_;
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///
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std::istream & is_;
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};
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