diff options
Diffstat (limited to 'examples/parseTabularData.py')
| -rw-r--r-- | examples/parseTabularData.py | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/examples/parseTabularData.py b/examples/parseTabularData.py index da19033..3c898e0 100644 --- a/examples/parseTabularData.py +++ b/examples/parseTabularData.py @@ -7,7 +7,7 @@ #
# Copyright 2015, Paul McGuire
#
-from pyparsing import col,Word,Optional,alphas,nums
+from pyparsing import col, Word, Optional, alphas, nums
table = """\
1 2
@@ -19,32 +19,41 @@ GREEN 3 5 PURPLE 8"""
# function to create column-specific parse conditions
-def mustMatchCols(startloc,endloc):
- return lambda s,l,t: startloc <= col(l,s) <= endloc
+def mustMatchCols(startloc, endloc):
+ return lambda s, l, t: startloc <= col(l, s) <= endloc
+
# helper to define values in a space-delimited table
# (change empty_cell_is_zero to True if a value of 0 is desired for empty cells)
def tableValue(expr, colstart, colend):
empty_cell_is_zero = False
if empty_cell_is_zero:
- return Optional(expr.copy().addCondition(mustMatchCols(colstart,colend),
- message="text not in expected columns"),
- default=0)
+ return Optional(
+ expr.copy().addCondition(
+ mustMatchCols(colstart, colend), message="text not in expected columns"
+ ),
+ default=0,
+ )
else:
- return Optional(expr.copy().addCondition(mustMatchCols(colstart,colend),
- message="text not in expected columns"))
+ return Optional(
+ expr.copy().addCondition(
+ mustMatchCols(colstart, colend), message="text not in expected columns"
+ )
+ )
# define the grammar for this simple table
colorname = Word(alphas)
integer = Word(nums).setParseAction(lambda t: int(t[0])).setName("integer")
-row = (colorname("name") +
- tableValue(integer, 11, 12)("S") +
- tableValue(integer, 15, 16)("M") +
- tableValue(integer, 19, 20)("L"))
+row = (
+ colorname("name")
+ + tableValue(integer, 11, 12)("S")
+ + tableValue(integer, 15, 16)("M")
+ + tableValue(integer, 19, 20)("L")
+)
# parse the sample text - skip over the header and counter lines
for line in table.splitlines()[3:]:
print(line)
print(row.parseString(line).dump())
- print('')
+ print("")
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