Swap unicode multiplication operators

Resolves #393.

DOCS.md

@@ -557,7 +557,7 @@ Coconut supports Unicode alternatives to many different operator symbols. The Un
 *↦ (*\u21a6)                => "|*>"
 ↤ (\u21a4)                  => "<|"
 ↤* (\u21a4*)                => "<*|"
-⋅ (\u22c5)                  => "*"
+× (\xd7)                    => "*"
 ↑ (\u2191)                  => "**"
 ÷ (\xf7)                    => "/"
 ÷/ (\xf7/)                  => "//"
@@ -578,7 +578,7 @@ Coconut supports Unicode alternatives to many different operator symbols. The Un
 « (\xab)                    => "<<"
 » (\xbb)                    => ">>"
 … (\u2026)                  => "..."
-× (\xd7)                    => "@" (only matrix multiplication)
+⋅ (\u22c5)                  => "@" (only matrix multiplication)
 ```
 
 ## Keywords
@@ -974,7 +974,7 @@ def (arguments) -> statement; statement; ...
 ```
 where `arguments` can be standard function arguments or [pattern-matching function definition](#pattern-matching-functions) arguments and `statement` can be an assignment statement or a keyword statement. If the last `statement` (not followed by a semicolon) is an `expression`, it will automatically be returned.
 
-Statement lambdas also support implicit lambda syntax, where when the arguments are omitted, as in `def -> _`, `def (_=None) -> _` is assumed.
+Statement lambdas also support implicit lambda syntax, where, as in `def -> _`, when the arguments are omitted, `def (_=None) -> _` is assumed.
 
 ##### Example
 

coconut/compiler/grammar.py

@@ -785,13 +785,13 @@ class Grammar(object):
     ge = Literal(">=") | fixto(Literal("\u2265"), ">=")
     ne = Literal("!=") | fixto(Literal("\xac=") | Literal("\u2260"), "!=")
 
-    mul_star = star | fixto(Literal("\u22c5"), "*")
+    mul_star = star | fixto(Literal("\xd7"), "*")
     exp_dubstar = dubstar | fixto(Literal("\u2191"), "**")
     neg_minus = minus | fixto(Literal("\u207b"), "-")
     sub_minus = minus | fixto(Literal("\u2212"), "-")
     div_slash = slash | fixto(Literal("\xf7") + ~slash, "/")
     div_dubslash = dubslash | fixto(Combine(Literal("\xf7") + slash), "//")
-    matrix_at_ref = at | fixto(Literal("\xd7"), "@")
+    matrix_at_ref = at | fixto(Literal("\u22c5"), "@")
     matrix_at = Forward()
 
     test = Forward()

tests/src/cocotest/agnostic/main.coco

@@ -501,6 +501,6 @@ def main(*args):
     assert target_sys_test()
 
     print(".", end="")  # ........
-    from . import tutorial
+    from . import tutorial  # NOQA
 
     print("\n<success>")

tests/src/cocotest/agnostic/specific.coco

@@ -1,6 +1,6 @@
 from io import StringIO  # type: ignore
 
-from .util import mod
+from .util import mod  # NOQA
 
 def non_py26_test():
     """Tests for any non-py26 version."""