experiments/clixon
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More XPath function support

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* `count`, `name`, `contains`, `not`, as defined in [xpath 1.0](https://www.w3.org/TR/xpath-10)
  * `deref`, `derived-from` and `derived-from-or-self` from RFC7950 Section 10.
    * in particular in augment/when statements
  * Improved error handling
    * Verification of XPath functions is done at startup when yang modules are loaded, not when XPaths are evaluated.
    * Separation of "not found" and "not implemented" XPath functions
    * Both give a fatal error (backend does not start).
This commit is contained in:
Olof hagsand 2020-09-23 15:35:01 +02:00
parent 2994d2f9a9
commit 21ac47915b
14 changed files with 715 additions and 132 deletions
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2
lib/src/clixon_xpath_optimize.c
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@ -145,7 +145,7 @@ xpath_optimize_init(xpath_tree **xm,
goto done;
xs->xs_match++; /* in loop_preds get name in xs_s1 XXX: leaf-list is different */
/* get keyval (_z) */
if ((xs = xpath_tree_traverse(_xe, 0, 0, 1, 0, 0, 0, -1)) == NULL)
if ((xs = xpath_tree_traverse(_xe, 0, 0, 1, 0, 0, 0, 0, -1)) == NULL)
goto done;
xs->xs_match++; /* in loop_preds get value in xs_s0 or xs_strnr */
}