import pymysql import re conn = pymysql.connect( host=’localhost’, port=3306, user=’root’, passwd=’123456′, db=’test’, charset=’utf8′, ) cursor = conn.cursor() f = open(‘D:\fil
Tag: regular
How to track the execution of regular expressions?
Is there a convenient way to get the status of the regular expression engine when evaluating m // or s /// expressions?
By the way, I know that the Regexp::Debugger package is available throu
Can I use a regular expression to search in an array?
I have an array of strings. I need to use regular expressions to search for strings in the array. Is it possible? If so, please explain.. $a = preg_grep(“/search_word/”,$array_of_strings);
print
Common regular expression
[email protected] Only English letters, numbers, underscores, full stops, and underscores are allowed
^[a-zA-Z0-9_-][emailprotected ][a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$
高子航[email protect
Regular expression – AWK line symbol regular expression
I have a simple awk script called “script.awk”, which contains:
//some_simple_string / {print $0;} I use it to parse some files containing the following content:
(by using: cat file | awk -f
Ruby – Regular expression, look for strings that include but not starting with strings
I am parsing a text file, traversing each line, and I am having trouble finding regular expressions. Part of this parsing involves changes appearing, for example: & Eacute; and & eacute;
Pit in the regular expression in Lua
When I use OpenResty to write Lua code, I need to use Lua regular expressions, where the pattern is like this,
–Water heater setting time
local s = ’12:33′
local pattern = “(20|21|22|23|[01
Protobuf3: String verification using regular expressions
I have been using Protobuf3 to define PB messages:
syntax = “proto3”;
package vioozer_protobuf ;
message Update
{
string sensor_id = 1;
…
} In my system, The sensor has a unique id format
String objects and regular expressions
一·String object method
Concept: multiple characters Read-only character array………String is essentially an array
and an array
1. The original array can be modified at will, bu
Grok resolution regular expression
I use the following regular expression:
INT (?:[+-]?(?:[0- 9]+))
VALUE ([0-9]+)
SPACE \s*
DATA .*?
USERNAME [a-zA-Z0-9._- ]+
YEAR (?>\d\d){1,2}
MONTHNUM (?:0?[1-9]|1[0-2])
MONTHDAY (? :(?:0[1