From 0b19bb71ba5a4afa84e673a8239935426fa0db23 Mon Sep 17 00:00:00 2001 From: ptmcg Date: Tue, 9 Aug 2016 21:50:19 +0000 Subject: Remove incorrect tag directory git-svn-id: svn://svn.code.sf.net/p/pyparsing/code/tags/pyparsing_2.1.6@405 9bf210a0-9d2d-494c-87cf-cfb32e7dff7b --- trunk/src/examples/parseListString.py | 82 ----------------------------------- 1 file changed, 82 deletions(-) delete mode 100644 trunk/src/examples/parseListString.py (limited to 'trunk/src/examples/parseListString.py') diff --git a/trunk/src/examples/parseListString.py b/trunk/src/examples/parseListString.py deleted file mode 100644 index d74f3af..0000000 --- a/trunk/src/examples/parseListString.py +++ /dev/null @@ -1,82 +0,0 @@ -# parseListString.py -# -# Copyright, 2006, by Paul McGuire -# - -from pyparsing import * - -# first pass -lbrack = Literal("[") -rbrack = Literal("]") -integer = Word(nums).setName("integer") -real = Combine(Optional(oneOf("+ -")) + Word(nums) + "." + - Optional(Word(nums))).setName("real") - -listItem = real | integer | quotedString - -listStr = lbrack + delimitedList(listItem) + rbrack - -test = "['a', 100, 3.14]" - -print(listStr.parseString(test)) - - -# second pass, cleanup and add converters -lbrack = Literal("[").suppress() -rbrack = Literal("]").suppress() -cvtInt = lambda s,l,toks: int(toks[0]) -integer = Word(nums).setName("integer").setParseAction( cvtInt ) -cvtReal = lambda s,l,toks: float(toks[0]) -real = Regex(r'[+-]?\d+\.\d*').setName("floating-point number").setParseAction( cvtReal ) -listItem = real | integer | quotedString.setParseAction( removeQuotes ) - -listStr = lbrack + delimitedList(listItem) + rbrack - -test = "['a', 100, 3.14]" - -print(listStr.parseString(test)) - -# third pass, add nested list support, and tuples, too! -cvtInt = lambda s,l,toks: int(toks[0]) -cvtReal = lambda s,l,toks: float(toks[0]) - -lbrack = Literal("[").suppress() -rbrack = Literal("]").suppress() -integer = Word(nums).setName("integer").setParseAction( cvtInt ) -real = Regex(r'[+-]?\d+\.\d*').setName("floating-point number").setParseAction( cvtReal ) -tupleStr = Forward() -listStr = Forward() -listItem = real | integer | quotedString.setParseAction(removeQuotes) | Group(listStr) | tupleStr -tupleStr << ( Suppress("(") + delimitedList(listItem) + Optional(Suppress(",")) + Suppress(")") ) -tupleStr.setParseAction( lambda t:tuple(t.asList()) ) -listStr << lbrack + delimitedList(listItem) + Optional(Suppress(",")) + rbrack - -test = "['a', 100, ('A', [101,102]), 3.14, [ +2.718, 'xyzzy', -1.414] ]" -print(listStr.parseString(test)) - -# fourth pass, add parsing of dicts -cvtInt = lambda s,l,toks: int(toks[0]) -cvtReal = lambda s,l,toks: float(toks[0]) -cvtDict = lambda s,l,toks: dict(toks[0]) - -lbrack = Literal("[").suppress() -rbrack = Literal("]").suppress() -lbrace = Literal("{").suppress() -rbrace = Literal("}").suppress() -colon = Literal(":").suppress() -integer = Word(nums).setName("integer").setParseAction( cvtInt ) -real = Regex(r'[+-]?\d+\.\d*').setName("real").setParseAction( cvtReal ) - -tupleStr = Forward() -listStr = Forward() -dictStr = Forward() -listItem = real | integer | quotedString.setParseAction(removeQuotes) | Group(listStr) | tupleStr | dictStr -tupleStr <<= ( Suppress("(") + delimitedList(listItem) + Optional(Suppress(",")) + Suppress(")") ) -tupleStr.setParseAction( lambda t:tuple(t.asList()) ) -listStr <<= (lbrack + Optional(delimitedList(listItem)) + Optional(Suppress(",")) + rbrack) -dictKeyStr = real | integer | quotedString.setParseAction(removeQuotes) -dictStr <<= lbrace + Optional(delimitedList( Group( dictKeyStr + colon + listItem ))) + Optional(Suppress(",")) + rbrace -dictStr.setParseAction(lambda t: dict((k_v[0],(k_v[1].asList() if isinstance(k_v[1],ParseResults) else k_v[1])) for k_v in t)) - -test = '[{0: [2], 1: []}, {0: [], 1: [], 2: [,]}, {0: [1, 2,],}]' -print(listStr.parseString(test)) -- cgit v1.2.1