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-rw-r--r--server/src/queryparser.cc168
1 files changed, 168 insertions, 0 deletions
diff --git a/server/src/queryparser.cc b/server/src/queryparser.cc
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * queryparser.cc
+ *
+ * Tue May 6 17:02:37 CEST 2008
+ * Copyright 2008 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 "queryparser.h"
+
+QueryParser::QueryParser()
+{
+ this->timestamp = 0;
+
+ p = 0;
+ stack.push_back(&result);
+}
+
+void QueryParser::startTag(std::string name, std::map< std::string, std::string> attributes)
+{
+
+ if(name == "results") {
+ // What to do here!?
+ }
+
+ if(name == "result") {
+ this->timestamp = atol(attributes["timestamp"].c_str());
+
+ QueryResult q;
+ q.source = "pentominos";
+ q.timestamp = this->timestamp;
+ stack.back()->groups[attributes["class"]] = q;
+ stack.push_back(&stack.back()->groups[attributes["class"]]);
+ }
+
+ if(name == "group") {
+ QueryResult q;
+ q.timestamp = this->timestamp;
+ stack.back()->groups[attributes["name"]] = q;
+ stack.push_back(&stack.back()->groups[attributes["name"]]);
+ }
+
+ if(name == "value") {
+ stack.back()->values[attributes["name"]] = utf8.decode(attributes["value"]);
+ }
+
+}
+
+void QueryParser::endTag(std::string name)
+{
+ if(name == "group" || name == "result") stack.pop_back();
+}
+
+void QueryParser::parseError(const char *buf, size_t len, std::string error, int lineno)
+{
+ fprintf(stderr, "QueryParser error at line %d: %s\n", lineno, error.c_str());
+ fprintf(stderr, "\tBuffer %u bytes: [", len);
+ if(fwrite(buf, len, 1, stderr) != len) {}
+ fprintf(stderr, "]\n");
+ fflush(stderr);
+
+ char *slineno;
+ if(asprintf(&slineno, " at line %d\n", lineno) != -1) {
+ throw Exception(error + slineno);
+ free(slineno);
+ }
+
+}
+
+#ifdef TEST_QUERYPARSER
+
+#include <string.h>
+
+static char xml[] =
+ "<?xml version='1.0' encoding='UTF-8'?>\n"
+ "<results>\n"
+ " <result class=\"testclass\" timestamp=\"1234567890\">\n"
+ " <group name=\"testgroup\">\n"
+ " <value name=\"testvalue\" value=\"42\"/>\n"
+ " <value name=\"anothertestvalue\" value=\"42\"/>\n"
+ " </group>\n"
+ " <group name=\"anothertestgroup\">\n"
+ " <value name=\"testvalue\" value=\"42\"/>\n"
+ " <value name=\"anothertestvalue\" value=\"42\"/>\n"
+ " </group>\n"
+ " </result>\n"
+ " <result class=\"anothertestclass\" timestamp=\"1234567890\">\n"
+ " <group name=\"testgroup\">\n"
+ " <value name=\"testvalue\" value=\"42\"/>\n"
+ " <value name=\"anothertestvalue\" value=\"42\"/>\n"
+ " </group>\n"
+ " <group name=\"anothertestgroup\">\n"
+ " <value name=\"testvalue\" value=\"42\"/>\n"
+ " <value name=\"anothertestvalue\" value=\"42\"/>\n"
+ " </group>\n"
+ " </result>\n"
+ "</results>\n"
+;
+
+static char badxml[] =
+ "<?xml version='1.0' encoding='UTF-8'?>\n"
+ "<results>\n"
+ "</sulrets>\n"
+;
+
+static std::string loadresultstring(QueryResult &res, std::string group = "")
+{
+ std::string s;
+
+ std::map< std::string, std::string >::iterator v = res.values.begin();
+ while(v != res.values.end()) {
+ s += group + (*v).first + " = \"" + (*v).second + "\"\n";
+ v++;
+ }
+
+ std::map< std::string, QueryResult >::iterator g = res.groups.begin();
+ while(g != res.groups.end()) {
+ s += group + (*g).first + " = {}\n";
+ s += loadresultstring((*g).second, group + (*g).first + ".");
+ g++;
+ }
+
+ return s;
+}
+
+int main()
+{
+ // Parse something
+ {
+ QueryParser parser;
+ parser.parse(xml, strlen(xml));
+ printf("%s\n", loadresultstring(parser.result).c_str());
+ }
+
+ // Parse something, and fail!
+ try {
+ QueryParser parser;
+ parser.parse(badxml, strlen(badxml));
+ printf("%s\n", loadresultstring(parser.result).c_str());
+ } catch(Exception &e) {
+ printf("ERROR: %s\n", e.what());
+ goto weitergehen;
+ }
+ return 1;
+ weitergehen:
+
+ return 0;
+}
+
+#endif/*TEST_QUERYPARSER*/