1 files changed, 116 insertions, 0 deletions
diff --git a/src/syntax/token.cxx b/src/syntax/token.cxx
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+++ b/src/syntax/token.cxx
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+// Copyright (C) 2013-2014, Gabriel Dos Reis.
+// All rights reserved.
+// Written by Gabriel Dos Reis.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     - Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//
+//     - Redistributions in binary form must reproduce the above copyright
+//       notice, this list of conditions and the following disclaimer in
+//       the documentation and/or other materials provided with the
+//       distribution.
+//
+//     - Neither the name of OpenAxiom. nor the names of its contributors
+//       may be used to endorse or promote products derived from this
+//       software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include <open-axiom/token>
+#include <ostream>
+#include <iostream>
+
+namespace OpenAxiom {
+   std::ostream& operator<<(std::ostream& os, const Locus& l) {
+      return os << '{' << l.line << ", " << l.column << '}';
+   }
+
+   std::ostream&
+   operator<<(std::ostream& os, TokenCategory tc) {
+      switch (tc) {
+      case TokenCategory::Unclassified: os << "UNCLASSIFIED"; break;
+      case TokenCategory::Whitespace: os << "WHITESPACE"; break;
+      case TokenCategory::Comment: os << "COMMENT"; break;
+      case TokenCategory::Punctuator: os << "PUNCTUATOR"; break;
+      case TokenCategory::Operator: os << "OPERATOR"; break;
+      case TokenCategory::Integer: os << "INTEGER"; break;
+      case TokenCategory::FloatingPoint: os << "FLOATINGPOINT"; break;
+      case TokenCategory::String: os << "STRING"; break;
+      case TokenCategory::Keyword: os << "KEYWORD"; break;
+      case TokenCategory::Identifier: os << "IDENTIFIER"; break;
+      case TokenCategory::Formatting: os << "FORMATTING"; break;
+      case TokenCategory::Junk: os << "JUNK"; break;
+      default: os << "????"; break;
+      }
+      return os;
+   }
+
+
+   bool separator_or_punctuator(uint8_t c) {
+      switch (c) {
+      case '.': case '`': case '^': case '&': case '~': case '*':
+      case '-': case '+': case ';': case ',': case '@': case '|':
+      case '\'': case ':': case '=': case '\\': case '"': case '/':
+      case '(': case ')': case '{': case '}': case '[': case ']':
+      case '<': case '>': case '#': case ' ':
+         return true;
+      default:
+         return false;
+      }
+   }
+
+   namespace {
+      struct TokenMapEntry {
+         const char* const text;
+         const TokenCategory category;
+         const TokenValue value;
+         const Language dialect; //  = Language::Spad
+      };
+   }
+
+   const TokenMapEntry token_map[] {
+#undef OPENAXIOM_DEFINE_TOKEN
+#define OPENAXIOM_DEFINE_TOKEN(T, N, C, ...)        \
+      { N, TokenCategory::C, TokenValue::T, __VA_ARGS__ },
+#include <open-axiom/token-value>
+#undef OPENAXIOM_DEFINE_TOKEN      
+   };
+
+   TokenClassification
+   classify(const std::string& s) {
+      for (auto& t : token_map) {
+         if (t.text == s)
+            return { t.category, t.value };
+      }
+      return { TokenCategory::Identifier, TokenValue::Unknown };
+   }
+
+   std::ostream&
+   operator<<(std::ostream& os, TokenValue tv) {
+      if (tv < TokenValue::Artificial)
+         os << token_map[uint8_t(tv)].text;
+      else switch (tv) {
+         case TokenValue::Indent: os << "%INDENT"; break;
+         case TokenValue::Unindent: os << "%UNIDENT"; break;
+         case TokenValue::Justify: os << "%JUSTIFY"; break;
+         default: os << "%ALIEN"; break;
+         }
+         
+      return os;
+   }
+
+}