From cef65063cec641a93973b38a48e100fdd115db44 Mon Sep 17 00:00:00 2001
From: Patrick Simianer <p@simianer.de>
Date: Sat, 23 Aug 2014 22:59:16 +0100
Subject: rewritten grammar

---
 fast/grammar.cc | 273 --------------------------------------------------------
 1 file changed, 273 deletions(-)
 delete mode 100644 fast/grammar.cc

(limited to 'fast/grammar.cc')

diff --git a/fast/grammar.cc b/fast/grammar.cc
deleted file mode 100644
index a003eb4..0000000
--- a/fast/grammar.cc
+++ /dev/null
@@ -1,273 +0,0 @@
-#include "grammar.hh"
-
-
-namespace G {
-
-/*
- * G::NT
- *
- */
-NT::NT(string& s)
-{
-  s.erase(0, 1); s.pop_back(); // remove '[' and ']'
-  istringstream ss(s);
-  if (ss >> index) { // [i]
-    symbol = "";
-    index = stoi(s);
-
-    return;
-  } else { // [X]
-    symbol = s;
-    index = 0;
-
-    return;
-  }
-  string buf;
-  size_t j = 0;
-  index = 0; // default
-  while (ss.good() && getline(ss, buf, ',')) {
-    if (j == 0) {
-      symbol = buf;
-    } else {
-      index = stoi(buf);
-    }
-    j++;
-  }
-}
-
-string
-NT::repr() const
-{
-  ostringstream os;
-  os << "NT<" << symbol << "," << index << ">";
-
-  return os.str();
-}
-
-string
-NT::escaped() const
-{
-  ostringstream os;
-  os << "[" << symbol;
-  if (index > 0)
-    os << "," << index;
-  os << "]";
-
-  return os.str();
-}
-
-ostream&
-operator<<(ostream& os, const NT& nt)
-{
-  return os << nt.repr();
-}
-
-/*
- * G::T
- *
- */
-T::T(const string& s)
-{
-  word = s;
-}
-
-string
-T::repr() const
-{
-  ostringstream os;
-  os << "T<" << word << ">";
-
-  return os.str();
-}
-
-string
-T::escaped() const
-{
-  return util::json_escape(word);
-}
-
-ostream&
-operator<<(ostream& os, const T& t)
-{
-  return os << t.repr();
-}
-
-
-/*
- * G::Item
- *
- * Better solve this by inheritance
- *  -> rhs, target as vector<base class> ?
- *
- */
-Item::Item(string& s)
-{
-  if (s.front() == '[' && s.back() == ']') {
-    type = NON_TERMINAL;
-    nt = new NT(s);
-  } else {
-    type = TERMINAL;
-    t = new T(s);
-  }
-}
-
-string
-Item::repr() const
-{
-  ostringstream os;
-  if (type == TERMINAL)
-    os << t->repr();
-  else
-    os << nt->repr();
-
-  return os.str();
-}
-
-string
-Item::escaped() const
-{
-  ostringstream os;
-  if (type == TERMINAL)
-    os << t->escaped();
-  else
-    os << nt->escaped();
-
-  return os.str();
-}
-
-ostream&
-operator<<(ostream& os, const Item& i)
-{
-  return os << i.repr();
-}
-
-/*
- * G::Rule
- *
- */
-Rule::Rule(const string& s)
-{
-  from_s(this, s);
-}
-
-void
-Rule::from_s(Rule* r, const string& s)
-{
-  stringstream ss(s);
-  size_t j = 0;
-  string buf;
-  r->arity = 0;
-  size_t index = 1;
-  vector<G::NT*> rhs_nt;
-  r->f = new Sv::SparseVector<string, score_t>();
-  while (ss >> buf) {
-    if (buf == "|||") { j++; continue; }
-    if (j == 0) {        // LHS
-      r->lhs = new NT(buf);
-    } else if (j == 1) { // RHS
-      r->rhs.push_back(new Item(buf));
-      if (r->rhs.back()->type == NON_TERMINAL) {
-        rhs_nt.push_back(r->rhs.back()->nt);
-        r->arity++;
-      }
-    } else if (j == 2) { // TARGET
-      r->target.push_back(new Item(buf));
-      if (r->target.back()->type == NON_TERMINAL) {
-        r->order.insert(make_pair(index, r->target.back()->nt->index));
-        if (r->target.back()->nt->symbol == "")
-          r->target.back()->nt->symbol = rhs_nt[r->target.back()->nt->index-1]->symbol;
-        index++;
-      }
-    } else if (j == 3) { // F TODO
-      Sv::SparseVector<string, score_t>::from_s(r->f, buf); // FIXME this is slow!!!
-    } else if (j == 4) { // A TODO
-    } else { 
-      // ERROR
-    }
-    if (j == 4) break;
-  }
-}
-
-string
-Rule::repr() const
-{
-  ostringstream os;
-  os << "Rule<lhs=" << lhs->repr() << \
-   ", rhs:{";
-  for (auto it = rhs.begin(); it != rhs.end(); it++) {
-    os << (**it).repr();
-    if (next(it) != rhs.end()) os << " ";
-  }
-  os << "}, target:{";
-  for (auto it = target.begin(); it != target.end(); it++) {
-    os << (**it).repr();
-    if (next(it) != target.end()) os << " ";
-  }
-  os << "}" \
-   ", f:" << f->repr() << \
-   ", arity=" << arity << \
-   ", map:" << "TODO" << \
-   ">";
-
-  return os.str();
-}
-
-string
-Rule::escaped() const
-{
-  ostringstream os;
-  os << lhs->escaped() << " ||| ";
-  for (auto it = rhs.begin(); it != rhs.end(); it++) {
-    os << (**it).escaped();
-    if (next(it) != rhs.end()) os << " ";
-  }
-  os << " ||| ";
-  for (auto it = target.begin(); it != target.end(); it++) {
-    os << (**it).escaped();
-    if (next(it) != target.end()) os << " ";
-  }
-  os << " ||| ";
-  os << f->escaped();
-  os << " ||| ";
-  os << "TODO(alignment)";
-
-  return os.str();
-}
-
-ostream&
-operator<<(ostream& os, const Rule& r)
-{
-  return os << r.repr();
-}
-
-/*
- * G::Grammmar
- *
- */
-Grammar::Grammar(const string& fn)
-{
-  ifstream ifs(fn);
-  string line;
-  while (getline(ifs, line)) {
-    G::Rule* r = new G::Rule(line);
-    rules.push_back(r);
-    if (r->arity == 0)
-      flat.push_back(r);
-    else if (r->rhs.front()->type == NON_TERMINAL)
-      start_nt.push_back(r);
-    else
-      start_t.push_back(r);
-  }
-}
-
-ostream&
-operator<<(ostream& os, const Grammar& g)
-{
-  for (const auto it: g.rules)
-    os << it->repr() << endl;
-
-  return os;
-}
-
-} // namespace G
-
-- 
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