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node-sass
Commit c455b21b by Aaron Leung
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Fixed incorrect fetching of union members in the unit math evaluator.

parent 161d1148
Showing with 163 additions and 147 deletions
document_parser.cpp
......@@ -38,6 +38,9 @@ namespace Sass {
root << parse_assignment();
if (!lex< exactly<';'> >()) syntax_error("top-level variable binding must be terminated by ';'");
}
// else if (peek< sequence< identifier, optional_spaces, exactly<':'> > >(position)) {
// root << parse_propset();
// }
// else if (look_for_selector_group(position)) {
else if (lookahead_for_selector(position)) {
root << parse_ruleset();
......@@ -470,6 +473,9 @@ namespace Sass {
block << parse_assignment();
semicolon = true;
}
// else if (peek< sequence< identifier, optional_spaces, exactly<':'> > >(position)) {
// block << parse_propset();
// }
// else if (look_for_rule(position)) {
// block << parse_rule();
// block.has_statements = true;
......@@ -888,28 +894,6 @@ namespace Sass {
lex< variable >();
return Node(Node::variable, line_number, lexed);
}
// const char* Document::look_for_rule(const char* start)
// {
// const char* p = start ? start : position;
// (p = peek< identifier >(p)) &&
// (p = peek< exactly<':'> >(p)) &&
// (p = look_for_values(p)) &&
// (p = peek< alternatives< exactly<';'>, exactly<'}'> > >(p));
// return p;
// }
//
// const char* Document::look_for_values(const char* start)
// {
// const char* p = start ? start : position;
// const char* q;
// while ((q = peek< identifier >(p)) || (q = peek< dimension >(p)) ||
// (q = peek< percentage >(p)) || (q = peek< number >(p)) ||
// (q = peek< hex >(p)) || (q = peek< string_constant >(p)) ||
// (q = peek< variable >(p)))
// { p = q; }
// return p == start ? 0 : p;
// }
const char* Document::lookahead_for_selector(const char* start)
{
......@@ -949,127 +933,151 @@ namespace Sass {
else return 0;
}
// NEW LOOKAHEAD FUNCTIONS. THIS ESSENTIALLY IMPLEMENTS A BACKTRACKING
// PARSER, BECAUSE SELECTORS AND VALUES ARE NOT EXPRESSIBLE IN A
// REGULAR LANGUAGE.
const char* Document::look_for_selector_group(const char* start)
{
const char* p = start ? start : position;
const char* q = look_for_selector(p);
if (!q) { return 0; }
else { p = q; }
while ((q = peek< exactly<','> >(p)) && (q = look_for_selector(q)))
{ p = q; }
// return peek< exactly<'{'> >(p) ? p : 0;
return peek< alternatives< exactly<'{'>, exactly<')'> > >(p) ? p : 0;
}
const char* Document::look_for_selector(const char* start)
{
const char* p = start ? start : position;
const char* q;
}
if ((q = peek< exactly<'+'> >(p)) ||
(q = peek< exactly<'~'> >(p)) ||
(q = peek< exactly<'>'> >(p)))
{ p = q; }
p = look_for_simple_selector_sequence(p);
if (!p) return 0;
while (((q = peek< exactly<'+'> >(p)) ||
(q = peek< exactly<'~'> >(p)) ||
(q = peek< exactly<'>'> >(p)) ||
(q = peek< ancestor_of > (p))) &&
(q = look_for_simple_selector_sequence(q)))
{ p = q; }
return p;
}
const char* Document::look_for_simple_selector_sequence(const char* start)
{
const char* p = start ? start : position;
const char* q;
if ((q = peek< type_selector >(p)) ||
(q = peek< universal >(p)) ||
(q = peek< exactly <'&'> >(p)) ||
(q = look_for_simple_selector(p)))
{ p = q; }
else
{ return 0; }
while (!peek< spaces >(p) &&
!(peek < exactly<'+'> >(p) ||
peek < exactly<'~'> >(p) ||
peek < exactly<'>'> >(p) ||
peek < exactly<','> >(p) ||
peek < exactly<')'> >(p) ||
peek < exactly<'{'> >(p)) &&
(q = look_for_simple_selector(p)))
{ p = q; }
return p;
}
const char* Document::look_for_simple_selector(const char* start)
{
const char* p = start ? start : position;
const char* q;
(q = peek< id_name >(p)) || (q = peek< class_name >(p)) ||
(q = look_for_pseudo(p)) || (q = look_for_attrib(p));
// cerr << "looking for simple selector; found:" << endl;
// cerr << (q ? string(Token::make(q,q+8)) : "nothing") << endl;
return q;
}
// const char* Document::look_for_rule(const char* start)
// {
// const char* p = start ? start : position;
// (p = peek< identifier >(p)) &&
// (p = peek< exactly<':'> >(p)) &&
// (p = look_for_values(p)) &&
// (p = peek< alternatives< exactly<';'>, exactly<'}'> > >(p));
// return p;
// }
//
// const char* Document::look_for_values(const char* start)
// {
// const char* p = start ? start : position;
// const char* q;
// while ((q = peek< identifier >(p)) || (q = peek< dimension >(p)) ||
// (q = peek< percentage >(p)) || (q = peek< number >(p)) ||
// (q = peek< hex >(p)) || (q = peek< string_constant >(p)) ||
// (q = peek< variable >(p)))
// { p = q; }
// return p == start ? 0 : p;
// }
const char* Document::look_for_pseudo(const char* start)
{
const char* p = start ? start : position;
const char* q;
if (q = peek< pseudo_not >(p)) {
// (q = look_for_simple_selector(q)) && (q = peek< exactly<')'> >(q));
(q = look_for_selector_group(q)) && (q = peek< exactly<')'> >(q));
}
else if (q = peek< sequence< pseudo_prefix, functional > >(p)) {
p = q;
(q = peek< alternatives< even, odd > >(p)) ||
(q = peek< binomial >(p)) ||
(q = peek< sequence< optional<sign>,
optional<digits>,
exactly<'n'> > >(p)) ||
(q = peek< sequence< optional<sign>,
digits > >(p));
p = q;
q = peek< exactly<')'> >(p);
}
else {
q = peek< sequence< pseudo_prefix, identifier > >(p);
}
return q ? q : 0;
}
const char* Document::look_for_attrib(const char* start)
{
const char* p = start ? start : position;
(p = peek< exactly<'['> >(p)) &&
(p = peek< type_selector >(p)) &&
(p = peek< alternatives<exact_match,
class_match,
dash_match,
prefix_match,
suffix_match,
substring_match> >(p)) &&
(p = peek< string_constant >(p)) &&
(p = peek< exactly<']'> >(p));
return p;
}
}
\ No newline at end of file
// // NEW LOOKAHEAD FUNCTIONS. THIS ESSENTIALLY IMPLEMENTS A BACKTRACKING
// // PARSER, BECAUSE SELECTORS AND VALUES ARE NOT EXPRESSIBLE IN A
// // REGULAR LANGUAGE.
// const char* Document::look_for_selector_group(const char* start)
// {
// const char* p = start ? start : position;
// const char* q = look_for_selector(p);
//
// if (!q) { return 0; }
// else { p = q; }
//
// while ((q = peek< exactly<','> >(p)) && (q = look_for_selector(q)))
// { p = q; }
//
// // return peek< exactly<'{'> >(p) ? p : 0;
// return peek< alternatives< exactly<'{'>, exactly<')'> > >(p) ? p : 0;
// }
//
// const char* Document::look_for_selector(const char* start)
// {
// const char* p = start ? start : position;
// const char* q;
//
// if ((q = peek< exactly<'+'> >(p)) ||
// (q = peek< exactly<'~'> >(p)) ||
// (q = peek< exactly<'>'> >(p)))
// { p = q; }
//
// p = look_for_simple_selector_sequence(p);
//
// if (!p) return 0;
//
// while (((q = peek< exactly<'+'> >(p)) ||
// (q = peek< exactly<'~'> >(p)) ||
// (q = peek< exactly<'>'> >(p)) ||
// (q = peek< ancestor_of > (p))) &&
// (q = look_for_simple_selector_sequence(q)))
// { p = q; }
//
// return p;
// }
//
// const char* Document::look_for_simple_selector_sequence(const char* start)
// {
// const char* p = start ? start : position;
// const char* q;
//
// if ((q = peek< type_selector >(p)) ||
// (q = peek< universal >(p)) ||
// (q = peek< exactly <'&'> >(p)) ||
// (q = look_for_simple_selector(p)))
// { p = q; }
// else
// { return 0; }
//
// while (!peek< spaces >(p) &&
// !(peek < exactly<'+'> >(p) ||
// peek < exactly<'~'> >(p) ||
// peek < exactly<'>'> >(p) ||
// peek < exactly<','> >(p) ||
// peek < exactly<')'> >(p) ||
// peek < exactly<'{'> >(p)) &&
// (q = look_for_simple_selector(p)))
// { p = q; }
//
// return p;
// }
//
// const char* Document::look_for_simple_selector(const char* start)
// {
// const char* p = start ? start : position;
// const char* q;
// (q = peek< id_name >(p)) || (q = peek< class_name >(p)) ||
// (q = look_for_pseudo(p)) || (q = look_for_attrib(p));
// // cerr << "looking for simple selector; found:" << endl;
// // cerr << (q ? string(Token::make(q,q+8)) : "nothing") << endl;
// return q;
// }
//
// const char* Document::look_for_pseudo(const char* start)
// {
// const char* p = start ? start : position;
// const char* q;
//
// if (q = peek< pseudo_not >(p)) {
// // (q = look_for_simple_selector(q)) && (q = peek< exactly<')'> >(q));
// (q = look_for_selector_group(q)) && (q = peek< exactly<')'> >(q));
// }
// else if (q = peek< sequence< pseudo_prefix, functional > >(p)) {
// p = q;
// (q = peek< alternatives< even, odd > >(p)) ||
// (q = peek< binomial >(p)) ||
// (q = peek< sequence< optional<sign>,
// optional<digits>,
// exactly<'n'> > >(p)) ||
// (q = peek< sequence< optional<sign>,
// digits > >(p));
// p = q;
// q = peek< exactly<')'> >(p);
// }
// else {
// q = peek< sequence< pseudo_prefix, identifier > >(p);
// }
// return q ? q : 0;
// }
//
// const char* Document::look_for_attrib(const char* start)
// {
// const char* p = start ? start : position;
//
// (p = peek< exactly<'['> >(p)) &&
// (p = peek< type_selector >(p)) &&
// (p = peek< alternatives<exact_match,
// class_match,
// dash_match,
// prefix_match,
// suffix_match,
// substring_match> >(p)) &&
// (p = peek< string_constant >(p)) &&
// (p = peek< exactly<']'> >(p));
//
// return p;
// }
// }
\ No newline at end of file
eval_apply.cpp
......@@ -262,8 +262,8 @@ namespace Sass {
Node accumulate(Node::Type op, Node& acc, Node& rhs, vector<vector<Node>*>& registry)
{
Node lhs(acc.content.children->back());
double lnum = lhs.content.numeric_value;
double rnum = rhs.content.numeric_value;
double lnum = lhs.numeric_value();
double rnum = rhs.numeric_value();
if (lhs.type == Node::number && rhs.type == Node::number) {
Node result(acc.line_number, operate(op, lnum, rnum));
......
prelexer.cpp
......@@ -80,7 +80,14 @@ namespace Sass {
exactly<'_'> > > >(src);
}
// Match interpolant schemas
const char* identifier_schema(const char* src) {
// follows this pattern: (x*ix*)+
return one_plus< sequence< zero_plus< identifier >,
interpolant,
zero_plus< identifier > > >(src);
}
const char* value_schema(const char* src) {
// follows this pattern: ([xyz]*i[xyz]*)+
return one_plus< sequence< zero_plus< alternatives< identifier, percentage, dimension, hex, number, string_constant > >,
......
prelexer.hpp
......@@ -303,6 +303,7 @@ namespace Sass {
// Match a CSS identifier.
const char* identifier(const char* src);
// Match interpolant schemas
const char* identifier_schema(const char* src);
const char* value_schema(const char* src);
// Match CSS '@' keywords.
const char* at_keyword(const char* src);
......
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