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Diffstat (limited to 'rtemsspec/items.py')
| -rw-r--r-- | rtemsspec/items.py | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/rtemsspec/items.py b/rtemsspec/items.py index 0e22f640..32a9eeaa 100644 --- a/rtemsspec/items.py +++ b/rtemsspec/items.py @@ -506,8 +506,16 @@ class ItemMapper: """ if not text: return "" - context = _ItemMapperContext(self, item, prefix, self._recursive) - return ItemTemplate(text).substitute(context) + try: + context = _ItemMapperContext(self, item, prefix, self._recursive) + return ItemTemplate(text).substitute(context) + except Exception as err: + spec = self._item.spec if item is None else item.spec + if prefix is None: + prefix = "/".join(self._prefix) + msg = (f"substitution for {spec} using prefix '{prefix}' " + f"failed for text: {text}") + raise ValueError(msg) from err class _SpecType(NamedTuple): |