* test_select.py: (some) tests for built-in select module

* test_grammar.py, testall.out: added test for funny things in string literals
* token.py, symbol.py: definitions used with built-in parser module.
* tokenize.py: added double-quote recognition

Lib/symbol.py

+# Non-terminal symbols of Python grammar (from "graminit.h")
+
+single_input = 256
+file_input = 257
+eval_input = 258
+lambda_input = 259
+funcdef = 260
+parameters = 261
+varargslist = 262
+fpdef = 263
+fplist = 264
+stmt = 265
+simple_stmt = 266
+small_stmt = 267
+expr_stmt = 268
+print_stmt = 269
+del_stmt = 270
+pass_stmt = 271
+flow_stmt = 272
+break_stmt = 273
+continue_stmt = 274
+return_stmt = 275
+raise_stmt = 276
+import_stmt = 277
+global_stmt = 278
+access_stmt = 279
+accesstype = 280
+exec_stmt = 281
+compound_stmt = 282
+if_stmt = 283
+while_stmt = 284
+for_stmt = 285
+try_stmt = 286
+except_clause = 287
+suite = 288
+test = 289
+and_test = 290
+not_test = 291
+comparison = 292
+comp_op = 293
+expr = 294
+xor_expr = 295
+and_expr = 296
+shift_expr = 297
+arith_expr = 298
+term = 299
+factor = 300
+atom = 301
+trailer = 302
+subscript = 303
+exprlist = 304
+testlist = 305
+dictmaker = 306
+classdef = 307
+
+names = dir()
+sym_name = {}
+for name in names:
+	number = eval(name)
+	sym_name[number] = name

Lib/test/test_grammar.py

@@ -62,6 +62,22 @@ x = 3.e14
 x = .3e14
 x = 3.1e4
 
+print '1.1.3 String literals'
+
+def assert(s):
+	if not s: raise TestFailed, 'see traceback'
+
+x = ''; y = ""; assert(len(x) == 0 and x == y)
+x = '\''; y = "'"; assert(len(x) == 1 and x == y and ord(x) == 39)
+x = '"'; y = "\""; assert(len(x) == 1 and x == y and ord(x) == 34)
+x = "doesn't \"shrink\" does it"
+y = 'doesn\'t "shrink" does it'
+assert(len(x) == 24 and x == y)
+x = "doesn \"shrink\" doesn't it"
+y = 'doesn "shrink" doesn\'t it'
+assert(len(x) == 25 and x == y)
+
+
 print '1.2 Grammar'
 
 print 'single_input' # NEWLINE | simple_stmt | compound_stmt NEWLINE

Lib/test/test_select.py

+# Testing select module
+
+from test_support import *
+
+def test():
+	import select
+	import os
+	cmd = 'for i in 0 1 2 3 4 5 6 7 8 9; do date; sleep 3; done'
+	p = os.popen(cmd, 'r')
+	for tout in (0, 1, 2, 4, 8, 16) + (None,)*10:
+		print 'timeout =', tout
+		rfd, wfd, xfd = select.select([p], [], [], tout)
+		print rfd, wfd, xfd
+		if (rfd, wfd, xfd) == ([], [], []):
+			continue
+		if (rfd, wfd, xfd) == ([p], [], []):
+			line = p.readline()
+			print `line`
+			if not line:
+				print 'EOF'
+				break
+			continue
+		print 'Heh?'
+
+test()

Lib/test/testall.out

@@ -6,6 +6,7 @@ test_grammar
 1.1.2.1 Plain integers
 1.1.2.2 Long integers
 1.1.2.3 Floating point
+1.1.3 String literals
 1.2 Grammar
 single_input
 file_input

Lib/token.py

+# Tokens (from "token.h")
+
+ENDMARKER = 0
+NAME = 1
+NUMBER = 2
+STRING = 3
+NEWLINE = 4
+INDENT = 5
+DEDENT = 6
+LPAR = 7
+RPAR = 8
+LSQB = 9
+RSQB = 10
+COLON = 11
+COMMA = 12
+SEMI = 13
+PLUS = 14
+MINUS = 15
+STAR = 16
+SLASH = 17
+VBAR = 18
+AMPER = 19
+LESS = 20
+GREATER = 21
+EQUAL = 22
+DOT = 23
+PERCENT = 24
+BACKQUOTE = 25
+LBRACE = 26
+RBRACE = 27
+EQEQUAL = 28
+NOTEQUAL = 29
+LESSEQUAL = 30
+GREATEREQUAL = 31
+TILDE = 32
+CIRCUMFLEX = 33
+LEFTSHIFT = 34
+RIGHTSHIFT = 35
+OP = 36
+ERRORTOKEN = 37
+
+names = dir()
+tok_name = {}
+for name in names:
+	number = eval(name)
+	tok_name[number] = name
+
+N_TOKENS = 38				# Number of tokens including ERRORTOKEN
+
+NT_OFFSET = 256				# Start of non-terminal symbols

Lib/tokenize.py

@@ -24,7 +24,9 @@ Expfloat = '[0-9]+' + Exponent
 Floatnumber = Pointfloat + '\|' + Expfloat
 Number = Floatnumber + '\|' + Intnumber
 
-String = '\'\(\\\\.\|[^\\\n\']\)*\''
+String = '\'\(\\\\.\|[^\\\n\']\)*\'' + '\|' + '"\(\\\\.\|[^\\\n"]\)*"'
+# Note: this module *recognizes* double quotes, but for backward
+# compatibility, it doesn't *use* them!
 
 Operator = '~\|\+\|-\|\*\|/\|%\|\^\|&\||\|<<\|>>\|==\|<=\|<>\|!=\|>=\|=\|<\|>'
 Bracket = '[][(){}]'