4710c53dca
These files are a subset of the python-2.7.2.tgz distribution from python.org. Changed files from PyMod-2.7.2 have been copied into the corresponding directories of this tree, replacing the original files in the distribution. Signed-off-by: daryl.mcdaniel@intel.com git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13197 6f19259b-4bc3-4df7-8a09-765794883524
597 lines
22 KiB
Python
597 lines
22 KiB
Python
doctests = """
|
|
Tests for the tokenize module.
|
|
|
|
>>> import glob, random, sys
|
|
|
|
The tests can be really simple. Given a small fragment of source
|
|
code, print out a table with tokens. The ENDMARK is omitted for
|
|
brevity.
|
|
|
|
>>> dump_tokens("1 + 1")
|
|
NUMBER '1' (1, 0) (1, 1)
|
|
OP '+' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 4) (1, 5)
|
|
|
|
>>> dump_tokens("if False:\\n"
|
|
... " # NL\\n"
|
|
... " True = False # NEWLINE\\n")
|
|
NAME 'if' (1, 0) (1, 2)
|
|
NAME 'False' (1, 3) (1, 8)
|
|
OP ':' (1, 8) (1, 9)
|
|
NEWLINE '\\n' (1, 9) (1, 10)
|
|
COMMENT '# NL' (2, 4) (2, 8)
|
|
NL '\\n' (2, 8) (2, 9)
|
|
INDENT ' ' (3, 0) (3, 4)
|
|
NAME 'True' (3, 4) (3, 8)
|
|
OP '=' (3, 9) (3, 10)
|
|
NAME 'False' (3, 11) (3, 16)
|
|
COMMENT '# NEWLINE' (3, 17) (3, 26)
|
|
NEWLINE '\\n' (3, 26) (3, 27)
|
|
DEDENT '' (4, 0) (4, 0)
|
|
|
|
>>> indent_error_file = \"""
|
|
... def k(x):
|
|
... x += 2
|
|
... x += 5
|
|
... \"""
|
|
|
|
>>> for tok in generate_tokens(StringIO(indent_error_file).readline): pass
|
|
Traceback (most recent call last):
|
|
...
|
|
IndentationError: unindent does not match any outer indentation level
|
|
|
|
Test roundtrip for `untokenize`. `f` is an open file or a string. The source
|
|
code in f is tokenized, converted back to source code via tokenize.untokenize(),
|
|
and tokenized again from the latter. The test fails if the second tokenization
|
|
doesn't match the first.
|
|
|
|
>>> def roundtrip(f):
|
|
... if isinstance(f, str): f = StringIO(f)
|
|
... token_list = list(generate_tokens(f.readline))
|
|
... f.close()
|
|
... tokens1 = [tok[:2] for tok in token_list]
|
|
... new_text = untokenize(tokens1)
|
|
... readline = iter(new_text.splitlines(1)).next
|
|
... tokens2 = [tok[:2] for tok in generate_tokens(readline)]
|
|
... return tokens1 == tokens2
|
|
...
|
|
|
|
There are some standard formatting practices that are easy to get right.
|
|
|
|
>>> roundtrip("if x == 1:\\n"
|
|
... " print x\\n")
|
|
True
|
|
|
|
>>> roundtrip("# This is a comment\\n# This also")
|
|
True
|
|
|
|
Some people use different formatting conventions, which makes
|
|
untokenize a little trickier. Note that this test involves trailing
|
|
whitespace after the colon. Note that we use hex escapes to make the
|
|
two trailing blanks apperant in the expected output.
|
|
|
|
>>> roundtrip("if x == 1 : \\n"
|
|
... " print x\\n")
|
|
True
|
|
|
|
>>> f = test_support.findfile("tokenize_tests" + os.extsep + "txt")
|
|
>>> roundtrip(open(f))
|
|
True
|
|
|
|
>>> roundtrip("if x == 1:\\n"
|
|
... " # A comment by itself.\\n"
|
|
... " print x # Comment here, too.\\n"
|
|
... " # Another comment.\\n"
|
|
... "after_if = True\\n")
|
|
True
|
|
|
|
>>> roundtrip("if (x # The comments need to go in the right place\\n"
|
|
... " == 1):\\n"
|
|
... " print 'x==1'\\n")
|
|
True
|
|
|
|
>>> roundtrip("class Test: # A comment here\\n"
|
|
... " # A comment with weird indent\\n"
|
|
... " after_com = 5\\n"
|
|
... " def x(m): return m*5 # a one liner\\n"
|
|
... " def y(m): # A whitespace after the colon\\n"
|
|
... " return y*4 # 3-space indent\\n")
|
|
True
|
|
|
|
Some error-handling code
|
|
|
|
>>> roundtrip("try: import somemodule\\n"
|
|
... "except ImportError: # comment\\n"
|
|
... " print 'Can not import' # comment2\\n"
|
|
... "else: print 'Loaded'\\n")
|
|
True
|
|
|
|
Balancing continuation
|
|
|
|
>>> roundtrip("a = (3,4, \\n"
|
|
... "5,6)\\n"
|
|
... "y = [3, 4,\\n"
|
|
... "5]\\n"
|
|
... "z = {'a': 5,\\n"
|
|
... "'b':15, 'c':True}\\n"
|
|
... "x = len(y) + 5 - a[\\n"
|
|
... "3] - a[2]\\n"
|
|
... "+ len(z) - z[\\n"
|
|
... "'b']\\n")
|
|
True
|
|
|
|
Ordinary integers and binary operators
|
|
|
|
>>> dump_tokens("0xff <= 255")
|
|
NUMBER '0xff' (1, 0) (1, 4)
|
|
OP '<=' (1, 5) (1, 7)
|
|
NUMBER '255' (1, 8) (1, 11)
|
|
>>> dump_tokens("0b10 <= 255")
|
|
NUMBER '0b10' (1, 0) (1, 4)
|
|
OP '<=' (1, 5) (1, 7)
|
|
NUMBER '255' (1, 8) (1, 11)
|
|
>>> dump_tokens("0o123 <= 0123")
|
|
NUMBER '0o123' (1, 0) (1, 5)
|
|
OP '<=' (1, 6) (1, 8)
|
|
NUMBER '0123' (1, 9) (1, 13)
|
|
>>> dump_tokens("01234567 > ~0x15")
|
|
NUMBER '01234567' (1, 0) (1, 8)
|
|
OP '>' (1, 9) (1, 10)
|
|
OP '~' (1, 11) (1, 12)
|
|
NUMBER '0x15' (1, 12) (1, 16)
|
|
>>> dump_tokens("2134568 != 01231515")
|
|
NUMBER '2134568' (1, 0) (1, 7)
|
|
OP '!=' (1, 8) (1, 10)
|
|
NUMBER '01231515' (1, 11) (1, 19)
|
|
>>> dump_tokens("(-124561-1) & 0200000000")
|
|
OP '(' (1, 0) (1, 1)
|
|
OP '-' (1, 1) (1, 2)
|
|
NUMBER '124561' (1, 2) (1, 8)
|
|
OP '-' (1, 8) (1, 9)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP ')' (1, 10) (1, 11)
|
|
OP '&' (1, 12) (1, 13)
|
|
NUMBER '0200000000' (1, 14) (1, 24)
|
|
>>> dump_tokens("0xdeadbeef != -1")
|
|
NUMBER '0xdeadbeef' (1, 0) (1, 10)
|
|
OP '!=' (1, 11) (1, 13)
|
|
OP '-' (1, 14) (1, 15)
|
|
NUMBER '1' (1, 15) (1, 16)
|
|
>>> dump_tokens("0xdeadc0de & 012345")
|
|
NUMBER '0xdeadc0de' (1, 0) (1, 10)
|
|
OP '&' (1, 11) (1, 12)
|
|
NUMBER '012345' (1, 13) (1, 19)
|
|
>>> dump_tokens("0xFF & 0x15 | 1234")
|
|
NUMBER '0xFF' (1, 0) (1, 4)
|
|
OP '&' (1, 5) (1, 6)
|
|
NUMBER '0x15' (1, 7) (1, 11)
|
|
OP '|' (1, 12) (1, 13)
|
|
NUMBER '1234' (1, 14) (1, 18)
|
|
|
|
Long integers
|
|
|
|
>>> dump_tokens("x = 0L")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '0L' (1, 4) (1, 6)
|
|
>>> dump_tokens("x = 0xfffffffffff")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '0xffffffffff (1, 4) (1, 17)
|
|
>>> dump_tokens("x = 123141242151251616110l")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '123141242151 (1, 4) (1, 26)
|
|
>>> dump_tokens("x = -15921590215012591L")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
OP '-' (1, 4) (1, 5)
|
|
NUMBER '159215902150 (1, 5) (1, 23)
|
|
|
|
Floating point numbers
|
|
|
|
>>> dump_tokens("x = 3.14159")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '3.14159' (1, 4) (1, 11)
|
|
>>> dump_tokens("x = 314159.")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '314159.' (1, 4) (1, 11)
|
|
>>> dump_tokens("x = .314159")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '.314159' (1, 4) (1, 11)
|
|
>>> dump_tokens("x = 3e14159")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '3e14159' (1, 4) (1, 11)
|
|
>>> dump_tokens("x = 3E123")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '3E123' (1, 4) (1, 9)
|
|
>>> dump_tokens("x+y = 3e-1230")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '+' (1, 1) (1, 2)
|
|
NAME 'y' (1, 2) (1, 3)
|
|
OP '=' (1, 4) (1, 5)
|
|
NUMBER '3e-1230' (1, 6) (1, 13)
|
|
>>> dump_tokens("x = 3.14e159")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '3.14e159' (1, 4) (1, 12)
|
|
|
|
String literals
|
|
|
|
>>> dump_tokens("x = ''; y = \\\"\\\"")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
STRING "''" (1, 4) (1, 6)
|
|
OP ';' (1, 6) (1, 7)
|
|
NAME 'y' (1, 8) (1, 9)
|
|
OP '=' (1, 10) (1, 11)
|
|
STRING '""' (1, 12) (1, 14)
|
|
>>> dump_tokens("x = '\\\"'; y = \\\"'\\\"")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
STRING '\\'"\\'' (1, 4) (1, 7)
|
|
OP ';' (1, 7) (1, 8)
|
|
NAME 'y' (1, 9) (1, 10)
|
|
OP '=' (1, 11) (1, 12)
|
|
STRING '"\\'"' (1, 13) (1, 16)
|
|
>>> dump_tokens("x = \\\"doesn't \\\"shrink\\\", does it\\\"")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
STRING '"doesn\\'t "' (1, 4) (1, 14)
|
|
NAME 'shrink' (1, 14) (1, 20)
|
|
STRING '", does it"' (1, 20) (1, 31)
|
|
>>> dump_tokens("x = u'abc' + U'ABC'")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
STRING "u'abc'" (1, 4) (1, 10)
|
|
OP '+' (1, 11) (1, 12)
|
|
STRING "U'ABC'" (1, 13) (1, 19)
|
|
>>> dump_tokens('y = u"ABC" + U"ABC"')
|
|
NAME 'y' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
STRING 'u"ABC"' (1, 4) (1, 10)
|
|
OP '+' (1, 11) (1, 12)
|
|
STRING 'U"ABC"' (1, 13) (1, 19)
|
|
>>> dump_tokens("x = ur'abc' + Ur'ABC' + uR'ABC' + UR'ABC'")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
STRING "ur'abc'" (1, 4) (1, 11)
|
|
OP '+' (1, 12) (1, 13)
|
|
STRING "Ur'ABC'" (1, 14) (1, 21)
|
|
OP '+' (1, 22) (1, 23)
|
|
STRING "uR'ABC'" (1, 24) (1, 31)
|
|
OP '+' (1, 32) (1, 33)
|
|
STRING "UR'ABC'" (1, 34) (1, 41)
|
|
>>> dump_tokens('y = ur"abc" + Ur"ABC" + uR"ABC" + UR"ABC"')
|
|
NAME 'y' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
STRING 'ur"abc"' (1, 4) (1, 11)
|
|
OP '+' (1, 12) (1, 13)
|
|
STRING 'Ur"ABC"' (1, 14) (1, 21)
|
|
OP '+' (1, 22) (1, 23)
|
|
STRING 'uR"ABC"' (1, 24) (1, 31)
|
|
OP '+' (1, 32) (1, 33)
|
|
STRING 'UR"ABC"' (1, 34) (1, 41)
|
|
|
|
Operators
|
|
|
|
>>> dump_tokens("def d22(a, b, c=2, d=2, *k): pass")
|
|
NAME 'def' (1, 0) (1, 3)
|
|
NAME 'd22' (1, 4) (1, 7)
|
|
OP '(' (1, 7) (1, 8)
|
|
NAME 'a' (1, 8) (1, 9)
|
|
OP ',' (1, 9) (1, 10)
|
|
NAME 'b' (1, 11) (1, 12)
|
|
OP ',' (1, 12) (1, 13)
|
|
NAME 'c' (1, 14) (1, 15)
|
|
OP '=' (1, 15) (1, 16)
|
|
NUMBER '2' (1, 16) (1, 17)
|
|
OP ',' (1, 17) (1, 18)
|
|
NAME 'd' (1, 19) (1, 20)
|
|
OP '=' (1, 20) (1, 21)
|
|
NUMBER '2' (1, 21) (1, 22)
|
|
OP ',' (1, 22) (1, 23)
|
|
OP '*' (1, 24) (1, 25)
|
|
NAME 'k' (1, 25) (1, 26)
|
|
OP ')' (1, 26) (1, 27)
|
|
OP ':' (1, 27) (1, 28)
|
|
NAME 'pass' (1, 29) (1, 33)
|
|
>>> dump_tokens("def d01v_(a=1, *k, **w): pass")
|
|
NAME 'def' (1, 0) (1, 3)
|
|
NAME 'd01v_' (1, 4) (1, 9)
|
|
OP '(' (1, 9) (1, 10)
|
|
NAME 'a' (1, 10) (1, 11)
|
|
OP '=' (1, 11) (1, 12)
|
|
NUMBER '1' (1, 12) (1, 13)
|
|
OP ',' (1, 13) (1, 14)
|
|
OP '*' (1, 15) (1, 16)
|
|
NAME 'k' (1, 16) (1, 17)
|
|
OP ',' (1, 17) (1, 18)
|
|
OP '**' (1, 19) (1, 21)
|
|
NAME 'w' (1, 21) (1, 22)
|
|
OP ')' (1, 22) (1, 23)
|
|
OP ':' (1, 23) (1, 24)
|
|
NAME 'pass' (1, 25) (1, 29)
|
|
|
|
Comparison
|
|
|
|
>>> dump_tokens("if 1 < 1 > 1 == 1 >= 5 <= 0x15 <= 0x12 != " +
|
|
... "1 and 5 in 1 not in 1 is 1 or 5 is not 1: pass")
|
|
NAME 'if' (1, 0) (1, 2)
|
|
NUMBER '1' (1, 3) (1, 4)
|
|
OP '<' (1, 5) (1, 6)
|
|
NUMBER '1' (1, 7) (1, 8)
|
|
OP '>' (1, 9) (1, 10)
|
|
NUMBER '1' (1, 11) (1, 12)
|
|
OP '==' (1, 13) (1, 15)
|
|
NUMBER '1' (1, 16) (1, 17)
|
|
OP '>=' (1, 18) (1, 20)
|
|
NUMBER '5' (1, 21) (1, 22)
|
|
OP '<=' (1, 23) (1, 25)
|
|
NUMBER '0x15' (1, 26) (1, 30)
|
|
OP '<=' (1, 31) (1, 33)
|
|
NUMBER '0x12' (1, 34) (1, 38)
|
|
OP '!=' (1, 39) (1, 41)
|
|
NUMBER '1' (1, 42) (1, 43)
|
|
NAME 'and' (1, 44) (1, 47)
|
|
NUMBER '5' (1, 48) (1, 49)
|
|
NAME 'in' (1, 50) (1, 52)
|
|
NUMBER '1' (1, 53) (1, 54)
|
|
NAME 'not' (1, 55) (1, 58)
|
|
NAME 'in' (1, 59) (1, 61)
|
|
NUMBER '1' (1, 62) (1, 63)
|
|
NAME 'is' (1, 64) (1, 66)
|
|
NUMBER '1' (1, 67) (1, 68)
|
|
NAME 'or' (1, 69) (1, 71)
|
|
NUMBER '5' (1, 72) (1, 73)
|
|
NAME 'is' (1, 74) (1, 76)
|
|
NAME 'not' (1, 77) (1, 80)
|
|
NUMBER '1' (1, 81) (1, 82)
|
|
OP ':' (1, 82) (1, 83)
|
|
NAME 'pass' (1, 84) (1, 88)
|
|
|
|
Shift
|
|
|
|
>>> dump_tokens("x = 1 << 1 >> 5")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 4) (1, 5)
|
|
OP '<<' (1, 6) (1, 8)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP '>>' (1, 11) (1, 13)
|
|
NUMBER '5' (1, 14) (1, 15)
|
|
|
|
Additive
|
|
|
|
>>> dump_tokens("x = 1 - y + 15 - 01 + 0x124 + z + a[5]")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 4) (1, 5)
|
|
OP '-' (1, 6) (1, 7)
|
|
NAME 'y' (1, 8) (1, 9)
|
|
OP '+' (1, 10) (1, 11)
|
|
NUMBER '15' (1, 12) (1, 14)
|
|
OP '-' (1, 15) (1, 16)
|
|
NUMBER '01' (1, 17) (1, 19)
|
|
OP '+' (1, 20) (1, 21)
|
|
NUMBER '0x124' (1, 22) (1, 27)
|
|
OP '+' (1, 28) (1, 29)
|
|
NAME 'z' (1, 30) (1, 31)
|
|
OP '+' (1, 32) (1, 33)
|
|
NAME 'a' (1, 34) (1, 35)
|
|
OP '[' (1, 35) (1, 36)
|
|
NUMBER '5' (1, 36) (1, 37)
|
|
OP ']' (1, 37) (1, 38)
|
|
|
|
Multiplicative
|
|
|
|
>>> dump_tokens("x = 1//1*1/5*12%0x12")
|
|
NAME 'x' (1, 0) (1, 1)
|
|
OP '=' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 4) (1, 5)
|
|
OP '//' (1, 5) (1, 7)
|
|
NUMBER '1' (1, 7) (1, 8)
|
|
OP '*' (1, 8) (1, 9)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP '/' (1, 10) (1, 11)
|
|
NUMBER '5' (1, 11) (1, 12)
|
|
OP '*' (1, 12) (1, 13)
|
|
NUMBER '12' (1, 13) (1, 15)
|
|
OP '%' (1, 15) (1, 16)
|
|
NUMBER '0x12' (1, 16) (1, 20)
|
|
|
|
Unary
|
|
|
|
>>> dump_tokens("~1 ^ 1 & 1 |1 ^ -1")
|
|
OP '~' (1, 0) (1, 1)
|
|
NUMBER '1' (1, 1) (1, 2)
|
|
OP '^' (1, 3) (1, 4)
|
|
NUMBER '1' (1, 5) (1, 6)
|
|
OP '&' (1, 7) (1, 8)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP '|' (1, 11) (1, 12)
|
|
NUMBER '1' (1, 12) (1, 13)
|
|
OP '^' (1, 14) (1, 15)
|
|
OP '-' (1, 16) (1, 17)
|
|
NUMBER '1' (1, 17) (1, 18)
|
|
>>> dump_tokens("-1*1/1+1*1//1 - ---1**1")
|
|
OP '-' (1, 0) (1, 1)
|
|
NUMBER '1' (1, 1) (1, 2)
|
|
OP '*' (1, 2) (1, 3)
|
|
NUMBER '1' (1, 3) (1, 4)
|
|
OP '/' (1, 4) (1, 5)
|
|
NUMBER '1' (1, 5) (1, 6)
|
|
OP '+' (1, 6) (1, 7)
|
|
NUMBER '1' (1, 7) (1, 8)
|
|
OP '*' (1, 8) (1, 9)
|
|
NUMBER '1' (1, 9) (1, 10)
|
|
OP '//' (1, 10) (1, 12)
|
|
NUMBER '1' (1, 12) (1, 13)
|
|
OP '-' (1, 14) (1, 15)
|
|
OP '-' (1, 16) (1, 17)
|
|
OP '-' (1, 17) (1, 18)
|
|
OP '-' (1, 18) (1, 19)
|
|
NUMBER '1' (1, 19) (1, 20)
|
|
OP '**' (1, 20) (1, 22)
|
|
NUMBER '1' (1, 22) (1, 23)
|
|
|
|
Selector
|
|
|
|
>>> dump_tokens("import sys, time\\nx = sys.modules['time'].time()")
|
|
NAME 'import' (1, 0) (1, 6)
|
|
NAME 'sys' (1, 7) (1, 10)
|
|
OP ',' (1, 10) (1, 11)
|
|
NAME 'time' (1, 12) (1, 16)
|
|
NEWLINE '\\n' (1, 16) (1, 17)
|
|
NAME 'x' (2, 0) (2, 1)
|
|
OP '=' (2, 2) (2, 3)
|
|
NAME 'sys' (2, 4) (2, 7)
|
|
OP '.' (2, 7) (2, 8)
|
|
NAME 'modules' (2, 8) (2, 15)
|
|
OP '[' (2, 15) (2, 16)
|
|
STRING "'time'" (2, 16) (2, 22)
|
|
OP ']' (2, 22) (2, 23)
|
|
OP '.' (2, 23) (2, 24)
|
|
NAME 'time' (2, 24) (2, 28)
|
|
OP '(' (2, 28) (2, 29)
|
|
OP ')' (2, 29) (2, 30)
|
|
|
|
Methods
|
|
|
|
>>> dump_tokens("@staticmethod\\ndef foo(x,y): pass")
|
|
OP '@' (1, 0) (1, 1)
|
|
NAME 'staticmethod (1, 1) (1, 13)
|
|
NEWLINE '\\n' (1, 13) (1, 14)
|
|
NAME 'def' (2, 0) (2, 3)
|
|
NAME 'foo' (2, 4) (2, 7)
|
|
OP '(' (2, 7) (2, 8)
|
|
NAME 'x' (2, 8) (2, 9)
|
|
OP ',' (2, 9) (2, 10)
|
|
NAME 'y' (2, 10) (2, 11)
|
|
OP ')' (2, 11) (2, 12)
|
|
OP ':' (2, 12) (2, 13)
|
|
NAME 'pass' (2, 14) (2, 18)
|
|
|
|
Backslash means line continuation, except for comments
|
|
|
|
>>> roundtrip("x=1+\\\\n"
|
|
... "1\\n"
|
|
... "# This is a comment\\\\n"
|
|
... "# This also\\n")
|
|
True
|
|
>>> roundtrip("# Comment \\\\nx = 0")
|
|
True
|
|
|
|
Two string literals on the same line
|
|
|
|
>>> roundtrip("'' ''")
|
|
True
|
|
|
|
Test roundtrip on random python modules.
|
|
pass the '-ucpu' option to process the full directory.
|
|
|
|
>>>
|
|
>>> tempdir = os.path.dirname(f) or os.curdir
|
|
>>> testfiles = glob.glob(os.path.join(tempdir, "test*.py"))
|
|
|
|
>>> if not test_support.is_resource_enabled("cpu"):
|
|
... testfiles = random.sample(testfiles, 10)
|
|
...
|
|
>>> for testfile in testfiles:
|
|
... if not roundtrip(open(testfile)):
|
|
... print "Roundtrip failed for file %s" % testfile
|
|
... break
|
|
... else: True
|
|
True
|
|
|
|
Evil tabs
|
|
>>> dump_tokens("def f():\\n\\tif x\\n \\tpass")
|
|
NAME 'def' (1, 0) (1, 3)
|
|
NAME 'f' (1, 4) (1, 5)
|
|
OP '(' (1, 5) (1, 6)
|
|
OP ')' (1, 6) (1, 7)
|
|
OP ':' (1, 7) (1, 8)
|
|
NEWLINE '\\n' (1, 8) (1, 9)
|
|
INDENT '\\t' (2, 0) (2, 1)
|
|
NAME 'if' (2, 1) (2, 3)
|
|
NAME 'x' (2, 4) (2, 5)
|
|
NEWLINE '\\n' (2, 5) (2, 6)
|
|
INDENT ' \\t' (3, 0) (3, 9)
|
|
NAME 'pass' (3, 9) (3, 13)
|
|
DEDENT '' (4, 0) (4, 0)
|
|
DEDENT '' (4, 0) (4, 0)
|
|
"""
|
|
|
|
|
|
from test import test_support
|
|
from tokenize import (untokenize, generate_tokens, NUMBER, NAME, OP,
|
|
STRING, ENDMARKER, tok_name)
|
|
from StringIO import StringIO
|
|
import os
|
|
|
|
def dump_tokens(s):
|
|
"""Print out the tokens in s in a table format.
|
|
|
|
The ENDMARKER is omitted.
|
|
"""
|
|
f = StringIO(s)
|
|
for type, token, start, end, line in generate_tokens(f.readline):
|
|
if type == ENDMARKER:
|
|
break
|
|
type = tok_name[type]
|
|
print("%(type)-10.10s %(token)-13.13r %(start)s %(end)s" % locals())
|
|
|
|
# This is an example from the docs, set up as a doctest.
|
|
def decistmt(s):
|
|
"""Substitute Decimals for floats in a string of statements.
|
|
|
|
>>> from decimal import Decimal
|
|
>>> s = 'print +21.3e-5*-.1234/81.7'
|
|
>>> decistmt(s)
|
|
"print +Decimal ('21.3e-5')*-Decimal ('.1234')/Decimal ('81.7')"
|
|
|
|
The format of the exponent is inherited from the platform C library.
|
|
Known cases are "e-007" (Windows) and "e-07" (not Windows). Since
|
|
we're only showing 12 digits, and the 13th isn't close to 5, the
|
|
rest of the output should be platform-independent.
|
|
|
|
>>> exec(s) #doctest: +ELLIPSIS
|
|
-3.21716034272e-0...7
|
|
|
|
Output from calculations with Decimal should be identical across all
|
|
platforms.
|
|
|
|
>>> exec(decistmt(s))
|
|
-3.217160342717258261933904529E-7
|
|
"""
|
|
|
|
result = []
|
|
g = generate_tokens(StringIO(s).readline) # tokenize the string
|
|
for toknum, tokval, _, _, _ in g:
|
|
if toknum == NUMBER and '.' in tokval: # replace NUMBER tokens
|
|
result.extend([
|
|
(NAME, 'Decimal'),
|
|
(OP, '('),
|
|
(STRING, repr(tokval)),
|
|
(OP, ')')
|
|
])
|
|
else:
|
|
result.append((toknum, tokval))
|
|
return untokenize(result)
|
|
|
|
|
|
__test__ = {"doctests" : doctests, 'decistmt': decistmt}
|
|
|
|
|
|
def test_main():
|
|
from test import test_tokenize
|
|
test_support.run_doctest(test_tokenize, True)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|