From 7e349e2789a633a6014baea63aeb7932e024c917 Mon Sep 17 00:00:00 2001
From: deva <deva>
Date: Wed, 22 Jul 2009 15:00:29 +0000
Subject: Changed the way the macros are looked up in the filesystem (now they
 are parsed and indexed using version numbers). Updated all unit tests, to
 compile and run again.

---
 server/src/macroheaderparser.cc | 149 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 server/src/macroheaderparser.cc

(limited to 'server/src/macroheaderparser.cc')

diff --git a/server/src/macroheaderparser.cc b/server/src/macroheaderparser.cc
new file mode 100644
index 0000000..4c61929
--- /dev/null
+++ b/server/src/macroheaderparser.cc
@@ -0,0 +1,149 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ *            macroheaderparser.cc
+ *
+ *  Wed Jul 22 08:42:23 CEST 2009
+ *  Copyright 2009 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of Pracro.
+ *
+ *  Pracro is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Pracro is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Pracro; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "debug.h"
+#include "macroheaderparser.h"
+#include "configuration.h"
+
+#include <stdio.h>
+
+// For assert
+#include <assert.h>
+
+// For open and friends
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+// For vprintf and friends
+#include <stdarg.h>
+
+#ifndef XML
+// For XML
+#include <config.h>
+#endif/*XML*/
+
+#include <errno.h>
+#include <string.h>
+
+#include "exception.h"
+
+void MacroHeaderParser::error(const char* fmt, ...)
+{
+  // TODO: Throw exception here.
+
+  PRACRO_ERR_LOG(macro, "Error in MacroHeaderParser: ");
+
+  {
+    va_list argp;
+    va_start(argp, fmt);
+    PRACRO_ERR_LOG_VA(macro, fmt, argp);
+    va_end(argp);
+
+    fprintf(stderr, "\n");
+  }
+
+  {
+    char *p;
+    va_list argp;
+    va_start(argp, fmt);
+    if(vasprintf(&p, fmt, argp) != -1) {
+      throw Exception("Error in MacroHeaderParser: " + std::string(p));
+      free(p);
+    }
+    va_end(argp);
+  }
+
+}
+
+MacroHeaderParser::MacroHeaderParser(std::string macrofile)
+{
+  m = NULL;
+
+  file = macrofile;
+
+  PRACRO_DEBUG(macro, "Using macro file: %s\n", macrofile.c_str());
+
+  fd = open(macrofile.c_str(), O_RDONLY);
+  if(fd == -1) error("Could not open file %s", macrofile.c_str());
+}
+
+MacroHeaderParser::~MacroHeaderParser()
+{
+  if(fd != -1) close(fd);
+  if(m) delete m;
+}
+
+void MacroHeaderParser::startTag(std::string name, std::map< std::string, std::string> attributes)
+{
+  // Create macro and enable parsing of queries, maps and window
+  if(name == "macro") {
+    assert(!m); // A Macro has already been allocated, cannot create macro!
+    m = new Macro();
+    m->attributes = attributes;
+  }
+}
+
+int MacroHeaderParser::readData(char *data, size_t size)
+{
+  if(m) return 0; // If m is allocated, it means that we have parsed the macro
+                  // tag, and can dismiss the rest of the document.
+
+  if(fd == -1) {
+    PRACRO_ERR_LOG(macro, "Invalid file descriptor.\n");
+    return 0;
+  }
+  ssize_t r = read(fd, data, size);
+  if(r == -1) {
+    PRACRO_ERR_LOG(macro, "Could not read...%s\n", strerror(errno));
+    return 0;
+  }
+  return r;
+}
+
+void MacroHeaderParser::parseError(char *buf, size_t len, std::string error, int lineno)
+{
+  if(m) return; // Ignore "unclosed token" errors when the macro tag has been parsed.
+
+  PRACRO_ERR_LOG(macro, "MacroHeaderParser[%s] error at line %d: %s\n", file.c_str(), lineno, error.c_str());
+  PRACRO_ERR_LOG(macro, "\tBuffer %u bytes: [", len);
+  if(fwrite(buf, len, 1, stderr) != len) {}
+  PRACRO_ERR_LOG(macro, "]\n");
+
+  char *slineno;
+  if(asprintf(&slineno, " at line %d\n", lineno) != -1) {
+    throw Exception(error + slineno);
+    free(slineno);
+  }
+
+}
+
+Macro *MacroHeaderParser::getMacro()
+{
+  return m;
+}
-- 
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