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main.cpp
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/*
This is an example source code and a regression test program for the TinyXPath project
We load a very small test.xml file and test the return value of the string variant of
TinyXPath against a known output.
The LIBXML_CHECK define may be turned ON if we need to verify the output against libxml
(from the Gnome project).
*/
#include "xpath_static.h"
#include "htmlutil.h"
/*
@history:
Modified on 18 December 2006 by Aman Aggarwal
::Added test cases for translate()
*/
static FILE * Fp_out_html;
// #define LIBXML_CHECK
static void v_out_one_line (const char * cp_expr, const char * cp_res, const char * cp_expected, bool o_ok)
{
fprintf (Fp_out_html, "<tr><td>%s</td>", cp_expr);
if (o_ok)
fprintf (Fp_out_html, "<td>%s</td><td>%s</td></tr>\n", cp_res, cp_expected);
else
fprintf (Fp_out_html, "<td><em>%s</em></td><td><em>%s</em></td></tr>\n", cp_res, cp_expected);
}
#ifdef LIBXML_CHECK
#include "libxml/tree.h"
#include "libxml/xpath.h"
/// Return the text result (if any) of the xpath expression
TIXML_STRING S_xpath_expr (const xmlDoc * Dp_ptr, const char * cp_xpath_expr)
{
xmlXPathObjectPtr XPOp_ptr;
xmlXPathContextPtr XPCp_ptr;
const xmlChar * Cp_ptr;
TIXML_STRING S_out;
S_out = "";
if (Dp_ptr)
{
XPCp_ptr = xmlXPathNewContext ((xmlDoc *) Dp_ptr);
if (XPCp_ptr)
{
// Evaluate
XPOp_ptr = xmlXPathEval ((const xmlChar *) cp_xpath_expr, XPCp_ptr);
if (XPOp_ptr)
{
Cp_ptr = xmlXPathCastToString (XPOp_ptr);
if (Cp_ptr)
S_out = (const char *) Cp_ptr;
xmlXPathFreeObject (XPOp_ptr);
}
}
if (XPCp_ptr)
xmlXPathFreeContext (XPCp_ptr);
}
return S_out;
}
static void v_test_one_string_libxml (const TiXmlNode * XNp_root, const char * cp_expr, const xmlDoc * Dp_ptr)
{
TIXML_STRING S_expected, S_res;
bool o_ok;
S_expected = S_xpath_expr (Dp_ptr, cp_expr);
printf ("-- expr : [%s] --\n", cp_expr);
TinyXPath::xpath_processor xp_proc (XNp_root, cp_expr);
S_res = xp_proc . S_compute_xpath ();
o_ok = strcmp (S_res . c_str (), S_expected . c_str ()) == 0;
v_out_one_line (cp_expr, S_res . c_str (), S_expected . c_str (), o_ok);
}
#endif
static void v_test_one_string_tiny (const TiXmlNode * XNp_root, const char * cp_expr, const char * cp_expected)
{
TIXML_STRING S_res;
bool o_ok;
printf ("-- expr : [%s] --\n", cp_expr);
S_res = TinyXPath::S_xpath_string (XNp_root, cp_expr);
o_ok = strcmp (S_res . c_str (), cp_expected) == 0;
v_out_one_line (cp_expr, S_res . c_str (), cp_expected, o_ok);
}
#ifdef LIBXML_CHECK
#define v_test_one_string(x,y,z) v_test_one_string_libxml(x,y,Dp_doc)
#else
#define v_test_one_string v_test_one_string_tiny
#endif
int main ()
{
TiXmlDocument * XDp_doc;
TiXmlElement * XEp_main;
int i_res;
char ca_res [80];
bool o_ok, o_res;
double d_out;
TIXML_STRING S_res;
XDp_doc = new TiXmlDocument;
if (XDp_doc -> LoadFile ("openoff.xml"))
{
S_res = TinyXPath::S_xpath_string (XDp_doc -> RootElement (), "/office:document-content/office:body/office:text/text:p/text()");
S_res = TinyXPath::S_xpath_string (XDp_doc -> RootElement (), "//text:sequence-decls/*[1]/@text:name");
}
delete XDp_doc;
XDp_doc = new TiXmlDocument;
if (! XDp_doc -> LoadFile ("test.xml"))
{
printf ("Can't find test.xml !\n");
return 99;
}
#ifdef LIBXML_CHECK
xmlDoc * Dp_doc;
Dp_doc = xmlParseFile ("test.xml");
#endif
Fp_out_html = fopen ("out.htm", "wt");
if (! Fp_out_html)
return 1;
fprintf (Fp_out_html, "<html><head><title>Result</title>\n<style>");
fprintf (Fp_out_html, "em{color: red;}</style>\n");
fprintf (Fp_out_html, "</head><body>\n");
fprintf (Fp_out_html, "<h1>TinyXPath examples / regression tests</h1>\n");
fprintf (Fp_out_html, "<h2>Input XML tree</h2>\n");
v_out_html (Fp_out_html, XDp_doc, 0);
fprintf (Fp_out_html, "<br /><br />\n");
fprintf (Fp_out_html, "<table border='1'><tr><th>Expression</th><th>Result</th><th>Expected (%s)</th></tr>\n",
#ifdef LIBXML_CHECK
"libXML"
#else
"compiled"
#endif
);
XEp_main = XDp_doc -> RootElement ();
fprintf (Fp_out_html, "<h2>Results</h2>\n");
TiXmlElement * XEp_sub = XEp_main -> FirstChildElement ("b");
v_test_one_string (XEp_main, "/a/*[name()!='b']", "x");
v_test_one_string (XEp_main, "//b/@val", "123" );
v_test_one_string (XEp_main, "//x/text()", "sub text");
v_test_one_string (XEp_main, "//*/comment()", " -122.0 ");
v_test_one_string (XEp_main, "( //dummy1 or //dummy2 or /dummy/dummy2 or /a/b )", "true");
v_test_one_string (XEp_main, "( //dummy1 or //dummy2 or /dummy/dummy2 )", "false");
v_test_one_string (XEp_main, "translate('aabbccdd','aaabc','AXYB')" , "AABBdd");
v_test_one_string (XEp_main, "translate('aabbccdde','abcd','')" , "e");
v_test_one_string (XEp_main, "translate('aabbccdd','','ASDF')" , "aabbccdd");
v_test_one_string (XEp_main, "translate('aabbccdd','','')" , "aabbccdd");
v_test_one_string (XEp_main, "translate('The quick brown fox jumps over the lazy dog','abcdefghijklmnopqrstuvwxyz','ABCDEFGHIJKLMNOPQRSTUVWXYZ')" , "THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG");
v_test_one_string (XEp_main, "count(//*/comment())", "2");
v_test_one_string (XEp_main, "sum(//@*)", "123");
v_test_one_string (XEp_main, "sum(//*/comment())", "378");
v_test_one_string (XEp_main, "true()", "true");
v_test_one_string (XEp_main, "not(false())", "true");
v_test_one_string (XEp_main, "count(//*[position()=2])", "2");
v_test_one_string (XEp_main, "name(/*/*/*[position()=2])", "c");
v_test_one_string (XEp_main, "name(/*/*/*[last()])", "d");
v_test_one_string (XEp_main, "count(//c/following::*)", "2");
v_test_one_string (XEp_main, "count(/a/b/b/following::*)", "3");
v_test_one_string (XEp_main, "count(//d/preceding::*)", "2");
v_test_one_string (XEp_main, "name(//attribute::*)", "val");
v_test_one_string (XEp_main, "count(//b/child::*)", "3");
v_test_one_string (XEp_main, "count(//x/ancestor-or-self::*)", "2");
v_test_one_string (XEp_main, "count(//b/descendant-or-self::*)", "4");
v_test_one_string (XEp_main, "count(//self::*)", "6");
v_test_one_string (XEp_main, "count(/a/descendant::*)", "5");
v_test_one_string (XEp_main, "count(/a/descendant::x)", "1");
v_test_one_string (XEp_main, "count(/a/descendant::b)", "2");
v_test_one_string (XEp_main, "count(/a/descendant::b[@val=123])", "1");
v_test_one_string (XEp_main, "count(//c/ancestor::a)", "1");
v_test_one_string (XEp_main, "name(//d/parent::*)", "b");
v_test_one_string (XEp_main, "count(//c/ancestor::*)", "2");
v_test_one_string (XEp_main, "name(/a/b/ancestor::*)", "a");
v_test_one_string (XEp_main, "name(/a/b/c/following-sibling::*)", "d");
v_test_one_string (XEp_main, "count(//b/following-sibling::*)", "3");
v_test_one_string (XEp_main, "count(//b|//a)", "3");
v_test_one_string (XEp_main, "count(//d/preceding-sibling::*)", "2");
v_test_one_string (XEp_main, "-3 * 4", "-12");
v_test_one_string (XEp_main, "-3.1 * 4", "-12.4");
v_test_one_string (XEp_main, "12 div 5", "2.4");
v_test_one_string (XEp_main, "3 * 7", "21");
v_test_one_string (XEp_main, "-5.5 >= -5.5", "true");
v_test_one_string (XEp_main, "-5.5 < 3", "true");
v_test_one_string (XEp_main, "-6.0 < -7", "false");
v_test_one_string (XEp_main, "12 < 14", "true");
v_test_one_string (XEp_main, "12 > 14", "false");
v_test_one_string (XEp_main, "14 <= 14", "true");
v_test_one_string (XEp_main, "/a or /b", "true");
v_test_one_string (XEp_main, "/c or /b", "false");
v_test_one_string (XEp_main, "/a and /b", "false");
v_test_one_string (XEp_main, "/a and /*/b", "true");
v_test_one_string (XEp_main, "18-12", "6");
v_test_one_string (XEp_main, "18+12", "30");
v_test_one_string (XEp_main, "count(//a|//b)", "3");
v_test_one_string (XEp_main, "count(//*[@val])", "1");
v_test_one_string (XEp_main, "name(//*[@val=123])", "b");
v_test_one_string (XEp_main, "3=4", "false");
v_test_one_string (XEp_main, "3!=4", "true");
v_test_one_string (XEp_main, "12=12", "true");
v_test_one_string (XEp_main, "'here is a string'='here is a string'", "true");
v_test_one_string (XEp_main, "'here is a string'!='here is a string'", "false");
v_test_one_string (XEp_main, "/a/b/@val", "123");
v_test_one_string (XEp_main, "count(//*/b)", "2");
v_test_one_string (XEp_main, "name(/*/*/*[2])", "c");
v_test_one_string (XEp_main, "name(/*)", "a");
v_test_one_string (XEp_main, "name(/a)", "a");
v_test_one_string (XEp_main, "name(/a/b)", "b");
v_test_one_string (XEp_main, "name(/*/*)", "b");
v_test_one_string (XEp_main, "name(/a/b/c)", "c");
v_test_one_string (XEp_main, "count(/a/b/*)", "3");
v_test_one_string (XEp_main, "ceiling(3.5)", "4");
v_test_one_string (XEp_main, "concat('first ','second',' third','')", "first second third");
v_test_one_string (XEp_main, "ceiling(5)", "5");
v_test_one_string (XEp_main, "floor(3.5)", "3");
v_test_one_string (XEp_main, "floor(5)", "5");
v_test_one_string (XEp_main, "string-length('try')", "3");
v_test_one_string (XEp_main, "concat(name(/a/b[1]/*[1]),' ',name(/a/b/*[2]))", "b c");
v_test_one_string (XEp_main, "count(/a/b/*)", "3");
v_test_one_string (XEp_main, "count(//*)", "6");
v_test_one_string (XEp_main, "count(//b)", "2");
v_test_one_string (XEp_main, "contains('base','as')", "true");
v_test_one_string (XEp_main, "contains('base','x')", "false");
v_test_one_string (XEp_main, "not(contains('base','as'))", "false");
v_test_one_string (XEp_main, "starts-with('blabla','bla')", "true");
v_test_one_string (XEp_main, "starts-with('blebla','bla')", "false");
v_test_one_string (XEp_main, "substring('12345',2,3)", "234");
v_test_one_string (XEp_main, "substring('12345',2)", "2345");
v_test_one_string (XEp_main, "substring('12345',2,6)", "2345");
v_test_one_string (XEp_main, "concat('[',normalize-space(' before and after '),']')", "[before and after]");
// test for u_compute_xpath_node_set
unsigned u_nb;
TinyXPath::xpath_processor xp_proc (XEp_main, "//*"); // build the list of all element nodes in the tree
u_nb = xp_proc . u_compute_xpath_node_set (); // retrieve number of nodes
sprintf (ca_res, "%d", u_nb);
o_ok = (u_nb == 6);
v_out_one_line ("//*", ca_res, "6", o_ok);
// regression test for multiple additive expressions
v_test_one_string (XEp_main, "2+3+4+5", "14");
v_test_one_string (XEp_main, "20-2-3+5", "20");
// regression test for predicate count bug
v_test_one_string (XEp_main, "count(/a/x[1])", "1");
v_test_one_string (XEp_main, "name(/a/*[2])", "x");
v_test_one_string (XEp_main, "name(/a/*[1])", "b");
v_test_one_string (XEp_main, "name(/a/x[1])", "x");
// regression test for bug in position()
v_test_one_string (XEp_main, "count(/a/b/c[1])", "1");
v_test_one_string (XEp_main, "count(/a/b/c[position()=1])", "1");
v_test_one_string (XEp_main, "count(/a/b/d[position()=3])", "0");
// regression test for bug in i_compute_xpath
i_res = TinyXPath::i_xpath_int (XEp_main, "//*[@val]/@val");
sprintf (ca_res, "%d", i_res);
v_out_one_line ("//*[@val]/@val", ca_res, "123", i_res == 123);
// regression test for bug in text in expressions
v_test_one_string (XEp_main, "//x[text()='sub text']/@target", "xyz");
// regression test for bug in o_xpath_double
o_res = TinyXPath::o_xpath_double (XEp_main, "substring('123.4',1)", d_out);
if (o_res)
{
sprintf (ca_res, "%.1f", d_out);
o_ok = ! strcmp (ca_res, "123.4");
}
else
o_ok = false;
v_out_one_line ("substring('123.4',1)", ca_res, "123.4", o_ok);
// testing for syntax error
TinyXPath::xpath_processor xp_proc_2 (XEp_main, "//**");
i_res = xp_proc_2 . i_compute_xpath ();
if (xp_proc_2 . e_error == TinyXPath::xpath_processor::e_error_syntax)
{
o_ok = true;
strcpy (ca_res, "syntax error");
}
else
{
o_ok = false;
sprintf (ca_res, "error %d", xp_proc_2 . e_error);
}
v_out_one_line ("//**", ca_res, "syntax error", o_ok);
// regression test for bug in "text" being an element
fprintf (Fp_out_html, "</table>\n");
delete XDp_doc;
XDp_doc = new TiXmlDocument ();
XDp_doc -> Parse ("<xml><text>within</text></xml>");
XEp_main = XDp_doc -> RootElement ();
fprintf (Fp_out_html, "<h2>Input XML tree</h2>\n");
v_out_html (Fp_out_html, XDp_doc, 0);
fprintf (Fp_out_html, "<br /><br />\n");
fprintf (Fp_out_html, "<table border='1'><tr><th>Expression</th><th>Result</th><th>Expected (%s)</th></tr>\n",
#ifdef LIBXML_CHECK
"libXML"
#else
"compiled"
#endif
);
v_test_one_string (XEp_main, "/xml/text/text()", "within" );
#ifdef LIBXML_CHECK
xmlFreeDoc (Dp_doc);
#endif
delete XDp_doc;
fprintf (Fp_out_html, "</table>\n");
fprintf (Fp_out_html, "<h2>RSS feed examples</h2>\n");
fprintf (Fp_out_html, "These examples show how to decode a typical XML file : the <a href='http://sourceforge.net/export/rss2_projnews.php?group_id=53396&rss_fulltext=1'>TinyXPath RSS feed</a><br /><br />");
XDp_doc = new TiXmlDocument;
if (! XDp_doc -> LoadFile ("rss2_projnews.xml"))
{
printf ("Can't find rss2_projnews.xml !\n");
return 99;
}
const char * cp_rss_count = "count(/rss/channel/item)";
const char * cp_rss_ver = "/rss/@version";
int i_nb_news, i_news;
char ca_expr [1000];
i_nb_news = TinyXPath::i_xpath_int (XDp_doc -> RootElement (), cp_rss_count);
fprintf (Fp_out_html, "RSS version (XPath expr : <b>%s</b>) : %s<br />\n",
cp_rss_ver, TinyXPath::S_xpath_string (XDp_doc -> RootElement (), cp_rss_ver) . c_str ());
fprintf (Fp_out_html, "Nb of news messages (XPath expr : <b>%s</b>) : %d<br />\n",
cp_rss_count, i_nb_news);
fprintf (Fp_out_html, "<br /><table border='1'><tr><th>Xpath expr</th><th>value</th></tr>\n");
for (i_news = 0; i_news < i_nb_news; i_news++)
{
sprintf (ca_expr, "concat(/rss/channel/item[%d]/pubDate/text(),' : ',/rss/channel/item[%d]/title/text())",
i_news + 1, i_news + 1);
fprintf (Fp_out_html, "<tr><td>%s</td><td>%s</td></tr>\n",
ca_expr, TinyXPath::S_xpath_string (XDp_doc -> RootElement (), ca_expr) . c_str ());
}
fprintf (Fp_out_html, "</table>\n");
delete XDp_doc;
fprintf (Fp_out_html, "<br /> <br /></body></html>\n");
fclose (Fp_out_html);
return 0;
}