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Added 'wesley' project. Added eval. Fixed some of the parsers to do correct delegation

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This commit is contained in:
Jonathan Turner
2009-06-02 23:29:04 +00:00
parent fc3b9de2d2
commit d984f973f4
7 changed files with 386 additions and 60 deletions
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104
langkit/langkit_parser.cpp
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@@ -37,26 +37,34 @@ std::pair<Token_Iterator, bool> Type_Rule(Token_Iterator iter, Token_Iterator en
std::pair<Token_Iterator, bool> Or_Rule(Token_Iterator iter, Token_Iterator end, TokenPtr parent, bool keep, int new_id, Rule lhs, Rule rhs) {
Token_Iterator new_iter;
unsigned int prev_size = parent->children.size();
unsigned int prev_size;
TokenPtr prev_parent = parent;
if (new_id != -1) {
parent = TokenPtr(new Token("", new_id, parent->filename));
}
prev_size = parent->children.size();
if (iter != end) {
std::pair<Token_Iterator, bool> result = lhs(iter, end, parent);
if (result.second) {
if (new_id != -1) {
parent->filename = (*iter)->filename;
parent->start = (*iter)->start;
parent->end = (*(result.first - 1))->end;
parent->filename = (*iter)->filename;
parent->start = (*iter)->start;
parent->end = (*(result.first - 1))->end;
prev_parent->children.push_back(parent);
}
return std::pair<Token_Iterator, bool>(result.first, true);
}
else {
if (parent->children.size() != prev_size) {
//Clear out the partial matches
parent->children.erase(parent->children.begin() + prev_size, parent->children.end());
}
result = rhs(iter, end, parent);
if (result.second) {
if (new_id != -1) {
@@ -95,7 +103,7 @@ std::pair<Token_Iterator, bool> And_Rule(Token_Iterator iter, Token_Iterator end
if (iter != end) {
std::pair<Token_Iterator, bool> result = lhs(iter, end, parent);
if ((result.second) && (result.first != end)) {
if (result.second) {
result = rhs(result.first, end, parent);
if (result.second) {
if (new_id != -1) {
@@ -127,25 +135,30 @@ std::pair<Token_Iterator, bool> Kleene_Rule
std::pair<Token_Iterator, bool> result;
Token_Iterator new_iter = iter;
if (new_id != -1) {
parent = TokenPtr(new Token("", new_id, parent->filename));
if (iter != end) {
if (new_id != -1) {
parent = TokenPtr(new Token("", new_id, parent->filename));
}
result.second = true;
while (result.second == true) {
result = rule(new_iter, end, parent);
new_iter = result.first;
}
if (new_id != -1) {
parent->filename = (*iter)->filename;
parent->start = (*iter)->start;
parent->end = (*(result.first - 1))->end;
prev_parent->children.push_back(parent);
}
return std::pair<Token_Iterator, bool>(result.first, true);
}
result.second = true;
while ((new_iter != end) && (result.second == true)) {
result = rule(new_iter, end, parent);
new_iter = result.first;
else {
return std::pair<Token_Iterator, bool>(iter, true);
}
if (new_id != -1) {
parent->filename = (*iter)->filename;
parent->start = (*iter)->start;
parent->end = (*(result.first - 1))->end;
prev_parent->children.push_back(parent);
}
return std::pair<Token_Iterator, bool>(result.first, true);
}
std::pair<Token_Iterator, bool> Plus_Rule
@@ -201,27 +214,32 @@ std::pair<Token_Iterator, bool> Optional_Rule
TokenPtr prev_parent = parent;
Token_Iterator new_iter = iter;
if (new_id != -1) {
parent = TokenPtr(new Token("", new_id, parent->filename));
if (iter != end) {
if (new_id != -1) {
parent = TokenPtr(new Token("", new_id, parent->filename));
}
std::pair<Token_Iterator, bool> result;
result.second = true;
if ((new_iter != end) && (result.second == true)) {
result = rule(new_iter, end, parent);
new_iter = result.first;
}
if (new_id != -1) {
parent->filename = (*iter)->filename;
parent->start = (*iter)->start;
parent->end = (*(result.first - 1))->end;
prev_parent->children.push_back(parent);
}
return std::pair<Token_Iterator, bool>(result.first, true);
}
std::pair<Token_Iterator, bool> result;
result.second = true;
if ((new_iter != end) && (result.second == true)) {
result = rule(new_iter, end, parent);
new_iter = result.first;
else {
return std::pair<Token_Iterator, bool>(iter, true);
}
if (new_id != -1) {
parent->filename = (*iter)->filename;
parent->start = (*iter)->start;
parent->end = (*(result.first - 1))->end;
prev_parent->children.push_back(parent);
}
return std::pair<Token_Iterator, bool>(result.first, true);
}
std::pair<Token_Iterator, bool> Nop_Rule