1 files changed, 50 insertions, 0 deletions
diff --git a/src/examples/list1.py b/src/examples/list1.py
new file mode 100644
index 0000000..db3f34f
--- /dev/null
+++ b/src/examples/list1.py
@@ -0,0 +1,50 @@
+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 = Combine(Optional(oneOf("+ -")) + Word(nums) + "." +
+               Optional(Word(nums))).setName("real").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
+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 = Combine(Optional(oneOf("+ -")) + Word(nums) + "." +
+               Optional(Word(nums))).setName("real").setParseAction( cvtReal )
+
+listStr = Forward()
+listItem = real | integer | quotedString.setParseAction(removeQuotes) | Group(listStr)
+listStr << lbrack + delimitedList(listItem) + rbrack
+
+test = "['a', 100, 3.14, [ +2.718, 'xyzzy', -1.414] ]"
+print listStr.parseString(test)
+\ No newline at end of file