Remove confusing unicode alternatives

Resolves   #748.

DOCS.md

@@ -1052,9 +1052,8 @@ _Note: these are only the default, built-in unicode operators. Coconut supports
 ≥ (\u2265) or ⊇ (\u2287)    => ">="
 ⊊ (\u228a)                  => "<"
 ⊋ (\u228b)                  => ">"
-∧ (\u2227) or ∩ (\u2229)    => "&"
-∨ (\u2228) or ∪ (\u222a)    => "|"
-⊻ (\u22bb)                  => "^"
+∩ (\u2229)                  => "&"
+∪ (\u222a)                  => "|"
 « (\xab)                    => "<<"
 » (\xbb)                    => ">>"
 … (\u2026)                  => "..."

coconut/compiler/grammar.py

@@ -707,9 +707,9 @@ class Grammar(object):
         | invalid_syntax("<?**..", "Coconut's None-aware backward keyword composition pipe is '<**?..', not '<?**..'")
     )
     amp_colon = Literal("&:")
-    amp = ~amp_colon + Literal("&") | fixto(Literal("\u2227") | Literal("\u2229"), "&")
-    caret = Literal("^") | fixto(Literal("\u22bb"), "^")
-    unsafe_bar = ~Literal("|>") + ~Literal("|*") + Literal("|") | fixto(Literal("\u2228") | Literal("\u222a"), "|")
+    amp = ~amp_colon + Literal("&") | fixto(Literal("\u2229"), "&")
+    caret = Literal("^")
+    unsafe_bar = ~Literal("|>") + ~Literal("|*") + Literal("|") | fixto(Literal("\u222a"), "|")
     bar = ~rbanana + unsafe_bar | invalid_syntax("\xa6", "invalid broken bar character", greedy=True)
     percent = Literal("%")
     dollar = Literal("$")

coconut/constants.py

@@ -767,11 +767,8 @@ def get_bool_env_var(env_var, default=False):
     "\u2260",  # !=
     "\u2264",  # <=
     "\u2265",  # >=
-    "\u2227",  # &
     "\u2229",  # &
-    "\u2228",  # |
     "\u222a",  # |
-    "\u22bb",  # ^
     "\xab",  # <<
     "\xbb",  # >>
     "\u2026",  # ...

coconut/root.py

@@ -26,7 +26,7 @@
 VERSION = "3.0.1"
 VERSION_NAME = None
 # False for release, int >= 1 for develop
-DEVELOP = 1
+DEVELOP = 2
 ALPHA = False  # for pre releases rather than post releases
 
 assert DEVELOP is False or DEVELOP >= 1, "DEVELOP must be False or an int >= 1"

coconut/tests/src/cocotest/agnostic/suite.coco

@@ -148,7 +148,7 @@ def suite_test() -> bool:
     assert one_to_five([1,2,3,4,5]) == [2,3,4]
     assert not one_to_five([0,1,2,3,4,5])
     assert one_to_five([1,5]) == []
-    assert -4 == neg_square_u(2) ≠ 4 ∧ 0 ≤ neg_square_u(0) ≤ 0
+    assert -4 == neg_square_u(2) ≠ 4 ∩ 0 ≤ neg_square_u(0) ≤ 0
     assert is_null(null1())
     assert is_null(null2())
     assert empty() |> depth_1 == 0 == empty() |> depth_2