要用expat-1.95.6库写一个最最基本的parser,所谓最基本就是只处理对元素或属性的查找，比如说：对形如“/A/B/C”或者“//A”或者“/[@a]”等情况的查找。

有谁能帮帮忙写一下这个代码吗？我在线等啊。。。

the task is to write a single c file,say spath.c and use this file to parse the xml file according to the xquery like "/name/first".

the spath.c doesn't  need to sovle the xquery including the "[conditions]"
that is to say the xquery only includes "//","/" and "@". the formats are like "/name/first","//name/first","/name//first" and "/@[name]",etc.

in a word, the spath.c only needs to get the element and attributes after parsing the xml file.

wait....................