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Diffstat (limited to 'src/examples/nested.py')
-rw-r--r-- | src/examples/nested.py | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/src/examples/nested.py b/src/examples/nested.py new file mode 100644 index 0000000..bd529f5 --- /dev/null +++ b/src/examples/nested.py @@ -0,0 +1,30 @@ +#
+# nested.py
+# Copyright, 2007 - Paul McGuire
+#
+# Simple example of using nestedExpr to define expressions using
+# paired delimiters for grouping lists and sublists
+#
+
+from pyparsing import *
+import pprint
+
+data = """
+{
+ { item1 "item with } in it" }
+ {
+ {item2a item2b }
+ {item3}
+ }
+
+}
+"""
+
+# use {}'s for nested lists
+nestedItems = nestedExpr("{", "}")
+print( (nestedItems+stringEnd).parseString(data).asList() )
+
+# use default delimiters of ()'s
+mathExpr = nestedExpr()
+print( mathExpr.parseString( "((( ax + by)*C) *(Z | (E^F) & D))") )
+
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