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Add support for computing operator nesting depth

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* spot/tl/hierarchy.hh, spot/tl/hierarchy.cc (nesting_depth): New
function.
* python/spot/__init__.py: Also make it a method of formula in Python
* bin/common_output.cc, bin/common_output.hh: Implement
--stats=%[OP]n.
* NEWS: Mention it.
* tests/core/format.test, tests/python/formulas.ipynb: Test it.
This commit is contained in:
Alexandre Duret-Lutz 2017-12-10 20:22:40 +01:00
parent 49b76bcf66
commit 62d1e0219d
8 changed files with 218 additions and 25 deletions
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6
bin/common_output.hh
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@ -58,6 +58,12 @@ extern bool escape_csv;
"the class of the formula is the Manna-Pnueli hierarchy " \
"([v] replaces abbreviations by class names, [w] for all " \
"compatible classes)", 0 }, \
{ "%[OP]n", 0, nullptr, OPTION_DOC | OPTION_NO_USAGE, \
"the nesting depth of operator OP. OP should be a single " \
"letter denoting the operator to count, or multiple letters " \
"to fuse several operators during depth evaluation. Add '~' " \
"to rewrite the formula in negative normal form before " \
"counting.", 0 }, \
{ "%x, %[LETTERS]X, %[LETTERS]x", 0, nullptr, \
OPTION_DOC | OPTION_NO_USAGE, \
COMMON_X_OUTPUT_SPECS(used in the formula), 0 }