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combined_parser.py
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# myls.py
# Import the argparse library
import argparse
import os
import sys
import sqlparse
import csv_util as cutil
def sql_parser(query):
parsed = sqlparse.parse(query)[0]
return parsed.tokens
parser = argparse.ArgumentParser(description='List the content of a folder')
parser.add_argument('vars', nargs='+')
opts = parser.parse_args()
# print(opts.vars)
# all_input = ' '.join(opts.vars)
# print(all_input)
#parse first word
first_word = str(opts.vars[0]).lower()
# print(first_word)
second_word = str(opts.vars[1]).lower()
# print(second_word)
lowered = [element.lower() for element in opts.vars]
if(first_word == "create" and second_word == "table"):
datatype_list = []
colname_list = []
primary_key_list = []
table_name = opts.vars[2]
if len(opts.vars) > 3 and opts.vars[3] == '(':
# print("len ", len(opts.vars[4:]))
i = 4
while i < len(opts.vars):
# print("i: ", opts.vars[i])
if opts.vars[i] == ')':
break
if opts.vars[i] != ')' :
if(opts.vars[i] == "primary"):
after_primary = opts.vars[i+3:]
j = 0
while j < len(after_primary):
if after_primary[j] == ')':
break
if after_primary[j] != ')' :
primary_key_list.append(after_primary[j])
j += 1
break
else:
colname_list.append(opts.vars[i])
i += 1
datatype_list.append(opts.vars[i])
i += 1
final_primary = []
for item in primary_key_list:
result = item.rstrip(',')
final_primary.append(result)
final_datatype = []
for item in datatype_list:
result = item.rstrip(',')
final_datatype.append(result)
final_colname = []
for item in colname_list:
result = item.rstrip(',')
final_colname.append(result)
# print(table_name)
# print(colname_list)
# print(datatype_list)
# print(final_primary)
cutil._create_table(table_name, 0, len(final_colname), final_datatype, final_colname, final_primary)
if(first_word == "drop" and second_word == "table"):
table_name = opts.vars[2]
#print(table_name)
cutil._drop_table(table_name)
if(first_word == "select"):
joinval = 0
colname_list = []
view_colname_list = []
condition_list = []
value_list = []
mmcas_list = []
andor = ""
mmcas_operations = ["max","min","count","sum","avg"]
table1_col_list = []
table2_col_list = []
table_name2 = ""
mathcols = []
matchcol_table1 = ""
matchcol_table2 = ""
join_type = ""
f_index = lowered.index('from')
table_name = opts.vars[f_index+1]
table_name_list = []
table_name_list.append(table_name)
before_from = opts.vars[1:f_index]
element = 0
while element < len(before_from):
if before_from[element].lower() in mmcas_operations:
mmcas_list.append(before_from[element].lower())
element += 2
view_colname_list.append(before_from[element])
element += 2
else:
view_colname_list.append(before_from[element])
element += 1
# view_colname_list.append(opts.vars[f_index-1])
if (len(opts.vars) > (f_index+2) and opts.vars[f_index+2] == 'where'):
i = f_index+3
while i < (len(opts.vars)):
if opts.vars[i] == "and":
i += 1
andor = "and"
continue
if opts.vars[i] == "or":
i += 1
andor = "or"
continue
if opts.vars[i] != ')' :
colname_list.append(opts.vars[i])
condition_list.append(opts.vars[i+1])
value_list.append(opts.vars[i+2])
i = i + 3
elif (len(opts.vars) > (f_index+3) and opts.vars[f_index+3] == 'join'):
join_type = (opts.vars[f_index+2]).lower()
table_name2 = opts.vars[f_index+4]
table_name_list.append(table_name2)
joinval = 1
mathcols.append(opts.vars[f_index+6])
mathcols.append(opts.vars[f_index+8])
updated_view_colname_list = []
for item in view_colname_list:
result = item.rstrip(',')
updated_view_colname_list.append(result)
# print("table name ", table_name)
# print("updated view ", updated_view_colname_list)
# print("mmcas list ", mmcas_list)
# print("colname ", colname_list)
# print("condition ", condition_list)
# print("value ", value_list)
# print("andor ", andor)
final_colname = []
for item in colname_list:
result = item.rstrip(',')
final_colname.append(result)
final_view_colname = []
for item in updated_view_colname_list:
result = item.rstrip(',')
final_view_colname.append(result)
final_value = []
for item in value_list:
result = item.rstrip(',')
final_value.append(result)
# print("colname : " , final_view_colname)
for item in final_view_colname:
result = item.rstrip(',')
stripped = ""
if '.' in result:
stripped = result.split('.')[1]
if result.startswith(table_name):
table1_col_list.append(stripped)
elif result.startswith(table_name2):
table2_col_list.append(stripped)
# print("matchcols : ", mathcols)
for item in mathcols:
result = item.rstrip(';')
stripped = ""
if '.' in result:
stripped = result.split('.')[1]
if result.startswith(table_name):
matchcol_table1 = stripped
elif result.startswith(table_name2):
matchcol_table2 = stripped
if joinval == 0:
cutil._select(table_name, final_view_colname, mmcas_list, final_colname, condition_list, final_value, andor)
if joinval == 1:
# print(table_name_list)
# print(table1_col_list)
# print(table2_col_list)
# print(matchcol_table1)
# print(matchcol_table2)
# print(join_type)
cutil._join(table_name_list, table1_col_list, table2_col_list, matchcol_table1, matchcol_table2, join_type, 'off')
if(first_word == "insert" and second_word == "into"):
colname_list = []
value_list = []
table_name = opts.vars[2]
v_index = lowered.index('values')
if opts.vars[3] == '(':
for arg in opts.vars[4:v_index-2]:
if arg != ')':
colname_list.append(arg)
colname_list.append(opts.vars[v_index-2])
if opts.vars[v_index+1] == '(':
for arg in opts.vars[v_index+2:-2]:
if arg != ')':
value_list.append(arg)
value_list.append(opts.vars[-2])
# print(table_name)
# print(colname_list)
# print(value_list)
final_colname = []
for item in colname_list:
result = item.rstrip(',')
final_colname.append(result)
final_value = []
for item in value_list:
result = item.rstrip(',')
final_value.append(result)
cutil._insert(table_name, final_colname, final_value)
if(first_word == "delete" and second_word == "from"):
table_name = opts.vars[2]
colname_list = []
value_list = []
condition_list = []
if (len(opts.vars) > 3 and opts.vars[3] == 'where'):
i = 4
while i < len(opts.vars):
if opts.vars[i] != ')' :
if opts.vars[i] == "and":
i += 1
andor = "and"
continue
if opts.vars[i] == "or":
i += 1
andor = "or"
continue
colname_list.append(opts.vars[i])
condition_list.append(opts.vars[i+1])
value_list.append(opts.vars[i+2])
i = i + 3
# print(table_name)
# print(colname_list)
# print(condition_list)
# print(value_list)
final_colname = []
for item in colname_list:
result = item.rstrip(',')
final_colname.append(result)
final_value = []
for item in value_list:
result = item.rstrip(',')
final_value.append(result)
cutil._delete(table_name, final_colname, condition_list, final_value)
if(first_word == "update"):
table_name = opts.vars[1]
where_index = 0
colname_list = []
update_colname_list = []
value_list = []
update_value_list = []
condition_list = []
andor = ""
if 'where' in lowered:
where_index = lowered.index('where')
if opts.vars[2] == "set":
# if where_index == 0:
# for i in range(0,len(opts.vars),3):
# update_colname_list.append(opts.vars[i])
# condition_list.append(opts.vars[i+1])
# update_value_list.append(opts.vars[i+2])
# elif where_index != 0:
before_where = opts.vars[3:where_index]
after_where = opts.vars[where_index+1:]
i = 0
while i < len(before_where):
update_colname_list.append(before_where[i])
i = i + 2
update_value_list.append(before_where[i])
i = i + 1
j = 0
while j < len(after_where):
if after_where[j] != ')' :
if after_where[j] == "and":
andor = "and"
j += 1
elif after_where[j] == "or":
andor = "or"
j += 1
colname_list.append(after_where[j])
condition_list.append(after_where[j+1])
value_list.append(after_where[j+2])
j = j + 3
# print(table_name)
# print(update_colname_list)
# print(update_value_list)
# print(colname_list)
# print(condition_list)
# print(value_list)
# print(andor)
final_colname = []
for item in colname_list:
result = item.rstrip(',')
final_colname.append(result)
final_value = []
for item in value_list:
result = item.rstrip(',')
final_value.append(result)
final_view_colname = []
for item in update_colname_list:
result = item.rstrip(',')
final_view_colname.append(result)
final_view_value = []
for item in update_value_list:
result = item.rstrip(',')
final_view_value.append(result)
cutil._update(table_name, final_view_colname, final_view_value, final_colname, condition_list, final_value, andor)
if(first_word == "create" and second_word == "index"):
index_name = opts.vars[2]
table_name = opts.vars[4]
after_table = opts.vars[5:]
colname_list = []
for item in range(0,len(after_table)):
if after_table[item] != '(' and after_table[item] != ')':
colname_list.append(after_table[item])
# print(colname_list)
final_colname = []
for item in colname_list:
result = item.rstrip(',')
final_colname.append(result)
# only supporting one column name
colname = colname_list[0]
cutil._create_index(index_name, table_name, colname)
if(first_word == "drop" and second_word == "index"):
drop = opts.vars[2]
table_name = drop.split('.')[0]
index_name = drop.split('.')[1]
cutil._drop_index(table_name, index_name)
if(first_word == "bulk" and second_word == "insert"):
table_name = opts.vars[2]
colnames = []
colnames.append("one")
colnames.append("two")
# datatypes = []
# datatypes.append("int")
# datatypes.append("int")
# primary_keys = []
# primary_keys.append("one")
# cutil._create_table(table_name, 0, len(colnames), datatypes, colnames, primary_keys)
if table_name == "Rel-i-i-1000":
for item in range(1,1001):
values = []
values.append(item)
values.append(item)
cutil._insert(table_name, colnames, values)
if table_name == "Rel-i-1-1000":
for item in range(1,1001):
values = []
values.append(item)
values.append(1)
cutil._insert(table_name, colnames, values)
if table_name == "Rel-i-i-10000":
for item in range(1,10001):
values = []
values.append(item)
values.append(item)
cutil._insert(table_name, colnames, values)
if table_name == "Rel-i-1-10000":
for item in range(1,10001):
values = []
values.append(item)
values.append(1)
cutil._insert(table_name, colnames, values)
if table_name == "Rel-i-i-100000":
for item in range(1,100001):
values = []
values.append(item)
values.append(item)
cutil._insert(table_name, colnames, values)
if table_name == "Rel-i-1-100000":
for item in range(1,100001):
values = []
values.append(item)
values.append(1)
cutil._insert(table_name, colnames, values)