Revision 7008
Added by Aaron Marcuse-Kubitza about 12 years ago
| lib/xml_func.py | ||
|---|---|---|
| 11 | 11 |
import dates |
| 12 | 12 |
import exc |
| 13 | 13 |
import format |
| 14 |
import lists |
|
| 14 | 15 |
import maps |
| 15 | 16 |
import scalar |
| 16 | 17 |
import sql |
| ... | ... | |
| 187 | 188 |
|
| 188 | 189 |
#### Logic |
| 189 | 190 |
|
| 190 |
simplifying_funcs['_and'] = passthru |
|
| 191 |
simplifying_funcs['_or'] = passthru |
|
| 191 |
def _and(node): |
|
| 192 |
values = [v for k, v in xml_dom.NodeTextEntryIter(node)] |
|
| 193 |
|
|
| 194 |
if lists.and_(map(is_scalar, values)): # all constants |
|
| 195 |
xml_dom.replace_with_text(node, lists.and_(values)) |
|
| 196 |
else: passthru(node) |
|
| 197 |
simplifying_funcs['_and'] = _and |
|
| 192 | 198 |
|
| 199 |
def _or(node): |
|
| 200 |
values = [v for k, v in xml_dom.NodeTextEntryIter(node)] |
|
| 201 |
|
|
| 202 |
if lists.and_(map(is_scalar, values)): # all constants |
|
| 203 |
xml_dom.replace_with_text(node, lists.or_(values)) |
|
| 204 |
else: passthru(node) |
|
| 205 |
simplifying_funcs['_or'] = _or |
|
| 206 |
|
|
| 193 | 207 |
def _exists(node): |
| 194 | 208 |
'''Returns whether its node is non-empty''' |
| 195 | 209 |
xml_dom.replace_with_text(node, not xml_dom.is_empty(node)) |
Also available in: Unified diff
xml_func.py: Simplifying functions: Logic: _and(), _or(): Evaluate an expression of only constant values