Implement pycodestyle's logical line detection

Cargo.toml

@@ -25,6 +25,7 @@ doctest = false
 
 [dependencies]
 anyhow = { version = "1.0.66" }
+bisection = { version = "0.1.0" }
 bitflags = { version = "1.3.2" }
 cfg-if = { version = "1.0.0" }
 chrono = { version = "0.4.21", default-features = false, features = ["clock"] }

README.md

@@ -695,6 +695,10 @@ For more, see [pycodestyle](https://pypi.org/project/pycodestyle/) on PyPI.
 | Code | Name | Message | Fix |
 | ---- | ---- | ------- | --- |
 | E101 | mixed-spaces-and-tabs | Indentation contains mixed spaces and tabs |  |
+| E221 | multiple-spaces-before-operator | Multiple spaces before operator |  |
+| E222 | multiple-spaces-after-operator | Multiple spaces after operator |  |
+| E223 | tab-before-operator | Tab before operator |  |
+| E224 | tab-after-operator | Tab after operator |  |
 | E401 | multiple-imports-on-one-line | Multiple imports on one line |  |
 | E402 | module-import-not-at-top-of-file | Module level import not at top of file |  |
 | E501 | line-too-long | Line too long ({length} > {limit} characters) |  |

resources/test/fixtures/pycodestyle/E22.py

@@ -0,0 +1,171 @@
+#: E221
+a = 12 + 3
+b = 4  + 5
+#: E221 E221
+x             = 1
+y             = 2
+long_variable = 3
+#: E221 E221
+x[0]          = 1
+x[1]          = 2
+long_variable = 3
+#: E221 E221
+x = f(x)          + 1
+y = long_variable + 2
+z = x[0]          + 3
+#: E221:3:14
+text = """
+    bar
+    foo %s"""  % rofl
+#: Okay
+x = 1
+y = 2
+long_variable = 3
+#:
+
+
+#: E222
+a = a +  1
+b = b + 10
+#: E222 E222
+x =            -1
+y =            -2
+long_variable = 3
+#: E222 E222
+x[0] =          1
+x[1] =          2
+long_variable = 3
+#:
+
+
+#: E223
+foobart = 4
+a	= 3  # aligned with tab
+#:
+
+
+#: E224
+a +=	1
+b += 1000
+#:
+
+
+#: E225
+submitted +=1
+#: E225
+submitted+= 1
+#: E225
+c =-1
+#: E225
+x = x /2 - 1
+#: E225
+c = alpha -4
+#: E225
+c = alpha- 4
+#: E225
+z = x **y
+#: E225
+z = (x + 1) **y
+#: E225
+z = (x + 1)** y
+#: E225
+_1kB = _1MB >>10
+#: E225
+_1kB = _1MB>> 10
+#: E225 E225
+i=i+ 1
+#: E225 E225
+i=i +1
+#: E225
+i = 1and 1
+#: E225
+i = 1or 0
+#: E225
+1is 1
+#: E225
+1in []
+#: E225
+i = 1 @2
+#: E225
+i = 1@ 2
+#: E225 E226
+i=i+1
+#: E225 E226
+i =i+1
+#: E225 E226
+i= i+1
+#: E225 E226
+c = (a +b)*(a - b)
+#: E225 E226
+c = (a+ b)*(a - b)
+#:
+
+#: E226
+z = 2//30
+#: E226 E226
+c = (a+b) * (a-b)
+#: E226
+norman = True+False
+#: E226
+x = x*2 - 1
+#: E226
+x = x/2 - 1
+#: E226 E226
+hypot2 = x*x + y*y
+#: E226
+c = (a + b)*(a - b)
+#: E226
+def halves(n):
+    return (i//2 for i in range(n))
+#: E227
+_1kB = _1MB>>10
+#: E227
+_1MB = _1kB<<10
+#: E227
+a = b|c
+#: E227
+b = c&a
+#: E227
+c = b^a
+#: E228
+a = b%c
+#: E228
+msg = fmt%(errno, errmsg)
+#: E228
+msg = "Error %d occurred"%errno
+#:
+
+#: Okay
+i = i + 1
+submitted += 1
+x = x * 2 - 1
+hypot2 = x * x + y * y
+c = (a + b) * (a - b)
+_1MiB = 2 ** 20
+_1TiB = 2**30
+foo(bar, key='word', *args, **kwargs)
+baz(**kwargs)
+negative = -1
+spam(-1)
+-negative
+func1(lambda *args, **kw: (args, kw))
+func2(lambda a, b=h[:], c=0: (a, b, c))
+if not -5 < x < +5:
+    print >>sys.stderr, "x is out of range."
+print >> sys.stdout, "x is an integer."
+x = x / 2 - 1
+x = 1 @ 2
+
+if alpha[:-i]:
+    *a, b = (1, 2, 3)
+
+
+def squares(n):
+    return (i**2 for i in range(n))
+
+
+ENG_PREFIXES = {
+    -6: "\u03bc",  # Greek letter mu
+    -3: "m",
+}
+#:

ruff.schema.json

@@ -1401,6 +1401,12 @@
         "E1",
         "E10",
         "E101",
+        "E2",
+        "E22",
+        "E221",
+        "E222",
+        "E223",
+        "E224",
         "E4",
         "E40",
         "E401",