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feat(wpcarro/simple-select): Support readline-style KBDs

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...and prevent REPL from crashing on parse/compilation errors. Better error
messaging would be quite nice as well.

Change-Id: I47d06fd74ef65bfa3f14f0b57a5516a908321da8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5348
Reviewed-by: wpcarro <wpcarro@gmail.com>
Autosubmit: wpcarro <wpcarro@gmail.com>
Tested-by: BuildkiteCI
This commit is contained in:
William Carroll 2022-03-01 14:56:31 -08:00 committed by clbot
parent 81138b25eb
commit 465ddb07bb
1 changed files with 8 additions and 3 deletions
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11
users/wpcarro/scratch/simple-select/main.py
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@ -1,11 +1,12 @@
from argparse import ArgumentParser
import csv
from parser import Parser
import sqlite3
import string
from scanner import Scanner
from parser import Parser
import re
import readline
################################################################################
# Predicates
@ -243,8 +244,12 @@ def main(csv_path=None, debug=False):
print("AST:\t{}".format(parse(x)))
print("query:\t\"{}\"".format(compile(x, table, columns)))
for row in cur.execute(compile(x, table, columns)):
print("\t".join(str(cell) for cell in row))
try:
compile(x, table, columns)
for row in cur.execute(compile(x, table, columns)):
print("\t".join(str(cell) for cell in row))
except:
print("Compilation error.")
# TODO(wpcarro): Trap exits and ensure cleanup always runs.
con.close()