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-rw-r--r--server/src/sax_parser.cc125
1 files changed, 125 insertions, 0 deletions
diff --git a/server/src/sax_parser.cc b/server/src/sax_parser.cc
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+++ b/server/src/sax_parser.cc
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * sax_parser.cc
+ *
+ * Mon Mar 24 14:40:15 CET 2008
+ * Copyright 2008 Bent Bisballe Nyeng, Lars Bisballe Jensen and Peter Skaarup
+ * deva@aasimon.org, elsenator@gmail.com and piparum@piparum.dk
+ ****************************************************************************/
+
+/*
+ * 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 "sax_parser.h"
+
+static void start_hndl(void *p, const char *el, const char **attr)
+{
+ SAXParser *parser = (SAXParser*)XML_GetUserData(p);
+
+ // Convert to comfy C++ values...
+ std::string name = el;
+ std::map< std::string, std::string > attributes;
+
+ while(*attr) {
+ std::string at_name = *attr;
+ attr++;
+ std::string at_value = *attr;
+ attr++;
+
+ attributes.insert(make_pair(at_name, at_value));
+ }
+
+ parser->startTag(name, attributes);
+}
+
+static void end_hndl(void *p, const char *el)
+{
+ SAXParser *parser = (SAXParser*)XML_GetUserData(p);
+ std::string name = el;
+ parser->endTag(name);
+}
+
+
+SAXParser::SAXParser()
+{
+ p = XML_ParserCreate(NULL);
+ if(!p) {
+ fprintf(stderr, "Couldn't allocate memory for parser\n");
+ // throw Exception(...);
+ return;
+ }
+
+ XML_SetUserData(p, this);
+ XML_UseParserAsHandlerArg(p);
+ XML_SetElementHandler(p, start_hndl, end_hndl);
+}
+
+int SAXParser::parse()
+{
+ char buf[32];
+ int len;
+
+ do {
+ len = readData(buf, sizeof(buf) - 1);
+ if (! XML_Parse(p, buf, len, len == 0)) {
+ fprintf(stderr, "Parse error at line %d:\n%s\n",
+ XML_GetCurrentLineNumber(p),
+ XML_ErrorString(XML_GetErrorCode(p)));
+ return -1;
+ }
+
+ memset(buf, 0, sizeof(buf));
+ } while(len);
+
+ return 0;
+}
+
+#ifdef TEST_SAXPARSER
+/**
+ * Compile with: g++ -DTEST_SAXPARSER sax_parser.cc -lexpat -otext_saxparser
+ * Run with: ./test_saxparser [xmlfile]
+ */
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+class MyParser :public SAXParser {
+public:
+ MyParser(char *file) {
+ fd = open(file, O_RDONLY);
+ }
+
+ int readData(char *data, size_t size) {
+ return read(fd, data, size);
+ }
+
+ void startTag(std::string name, std::map< std::string, std::string> attributes)
+ {
+ printf("<%s>\n", name.c_str());
+ }
+
+private:
+ int fd;
+};
+
+int main(int argc, char *argv[]) {
+ if(argc < 2) return 1;
+ MyParser parser(argv[1]);
+ parser.parse();
+}
+
+#endif/*TEST_SAXPARSER*/