#
# dictExample.py
#
#  Illustration of using pyparsing's Dict class to process tabular data
#
# Copyright (c) 2003, Paul McGuire
#
import pyparsing as pp

testData = """
+-------+------+------+------+------+------+------+------+------+
|       |  A1  |  B1  |  C1  |  D1  |  A2  |  B2  |  C2  |  D2  |
+=======+======+======+======+======+======+======+======+======+
| min   |   7  |  43  |   7  |  15  |  82  |  98  |   1  |  37  |
| max   |  11  |  52  |  10  |  17  |  85  | 112  |   4  |  39  |
| ave   |   9  |  47  |   8  |  16  |  84  | 106  |   3  |  38  |
| sdev  |   1  |   3  |   1  |   1  |   1  |   3  |   1  |   1  |
+-------+------+------+------+------+------+------+------+------+
"""

# define grammar for datatable
heading = (
    pp.Literal("+-------+------+------+------+------+------+------+------+------+")
    + "|       |  A1  |  B1  |  C1  |  D1  |  A2  |  B2  |  C2  |  D2  |"
    + "+=======+======+======+======+======+======+======+======+======+"
).suppress()
vert = pp.Literal("|").suppress()
number = pp.Word(pp.nums)
rowData = pp.Group(
    vert + pp.Word(pp.alphas) + vert + pp.delimitedList(number, "|") + vert
)
trailing = pp.Literal(
    "+-------+------+------+------+------+------+------+------+------+"
).suppress()

datatable = heading + pp.Dict(pp.ZeroOrMore(rowData)) + trailing

# now parse data and print results
data = datatable.parseString(testData)
print(data)

# shortcut for import pprint; pprint.pprint(data.asList())
data.pprint()

# access all data keys
print("data keys=", list(data.keys()))

# use dict-style access to values
print("data['min']=", data["min"])

# use attribute-style access to values (if key is a valid Python identifier)
print("data.max", data.max)
