resharp 0.3.11

high-performance regex engine with intersection and complement operations
Documentation 
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description = '''
paragraph boundary tests: whole-paragraph anchoring via lookbehind/lookahead.
body = _*&~(_*\n\n_*)&~(\n_*|_*\n) - no \n\n, no leading/trailing \n.
matches = [[start, end]] in utf8 bytes (half-open intervals).
'''


[[test]]
name = "lookbehind_A_star_lookahead_nn_single_line"
pattern = "(?<=\\A)_*(?=\n\n)"
input = "ab\n\ncd\n"
matches = [[0, 2]]

[[test]]
name = "lookbehind_A_star_lookahead_nn_multi_line"
pattern = "(?<=\\A)_*(?=\n\n)"
input = "ab\ncd\n\nef\n"
matches = [[0, 5]]

[[test]]
name = "lookbehind_nn_star_lookahead_nz"
pattern = "(?<=\n\n)_*(?=\n\\z)"
input = "ab\n\ncd\n"
matches = [[4, 6]]

[[test]]
name = "lookbehind_nn_star_lookahead_z"
pattern = "(?<=\n\n)_*(?=\\z)"
input = "ab\n\ncd"
matches = [[4, 6]]


[[test]]
name = "whole_para_single_line_paras"
pattern = "(?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z)"
input = "ab\n\ncd\n"
matches = [[0, 2], [4, 6]]

[[test]]
name = "whole_para_multi_line_first"
pattern = "(?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z)"
input = "ab\ncd\n\nef\n"
matches = [[0, 5], [7, 9]]

[[test]]
name = "whole_para_three_paras"
pattern = "(?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z)"
input = "aa\n\nbb\n\ncc\n"
matches = [[0, 2], [4, 6], [8, 10]]

[[test]]
name = "whole_para_no_trailing_newline"
pattern = "(?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z)"
input = "aa\n\nbb"
matches = [[0, 2], [4, 6]]

[[test]]
name = "whole_para_clean_multi_line"
pattern = "(?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z)"
input = "ab\ncd\n\nef"
matches = [[0, 5], [7, 9]]


[[test]]
name = "para_contains_word"
pattern = "((_*cats_*)&(_*dogs_*))&((?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z))"
input = "cats and dogs\n\nonly cats\n"
matches = [[0, 13]]

[[test]]
name = "para_contains_word_multi_line"
pattern = "((_*cats_*)&(_*dogs_*))&((?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z))"
input = "first about\ncats and dogs\n\nonly fish\n"
matches = [[0, 25]]

[[test]]
name = "para_contains_word_no_match_cross"
pattern = "((_*cats_*)&(_*dogs_*))&((?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z))"
input = "cats only\n\ndogs only\n"
matches = []


[[test]]
name = "para_with_not"
pattern = "((_*cats_*)&~(_*dogs_*))&((?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z))"
input = "cats and dogs\n\ncats alone\n"
matches = [[15, 25]]

[[test]]
name = "para_with_not_multi_line"
pattern = "((_*cats_*)&~(_*dogs_*))&((?<=\\A|\n\n)(_*&~(_*\n\n_*)&~(\n_*|_*\n))(?=\n\n|\n\\z|\\z))"
input = "cats and\ndogs here\n\ncats and\nbirds here\n"
matches = [[20, 39]]