XML: add API to simplify evaluation of XPath expressions

* lasso/xml/tools.c,lasso/xml/private.h:
  - lasso_eval_xpath_expression(xmlXPathContextPtr xpathCtx,
    const char *expression, xmlXPathObjectPtr *xpathObjectPtr,
    int *xpathErrorCode) is a boolean returning function handling call
    to libxml API to evaluate en XPath expression in the xpathCtx
    context. It eventually save the returned nodeset in the variable
    pointed by xpathObjectPtr if it is not-NULL
    (and eventually deallocate previous value)
    and if an error happend it copy its code into the variable
    pointed to by xpathErrorCode if it is not NULL.

0 files changed, 0 insertions, 0 deletions