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Safest possible way to concatenate strings in C?

The 100% safe, fully generalized approach uses snprintf, twice. The first call passes NULL as the buffer to write to, and a bufsz of 0, and it doesn't actually format anything, but returns the amount...

Tags: c#, string, gcc

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Arrays - extract address from a text in pyspark?

Check out this solution: import pyspark.sql.functions as f df = spark.createDataFrame([ ('"aci*credit one bank, n"', ' '), ('odot dmv2u 503-9455400 or 06/30', ' '), ('# 7-eleven 4106...

Tags: arrays, string, pyspark

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Ansible lineinfile - add substring only if missing?

Surely there must be a better way to handle that ... To ensure that THP is disabled before other services starts, one should create a service file which disables THP during boot up. This is the reco...

Tags: string, file, text

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Parsing key-value pairs, selecting based on value, and creating new column with SQL?

So, let's create the schema: create table mytable(col1 text, col2 text); insert into mytable(col1, col2) values ('some_string', '{key1:0, key2:1, key3:0}'), ('some_string', '{key1:0, key2:0, key3:0}'...

Tags: sql, string, postgresql

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Arrays - Is there a syntax in C to DIRECTLY INIT a struct member that is a const array of constant literal?

You can use a compound literal: const valid_options_t my_size_opts = {.name="size", .nb=3, .list = (const char *[]) { "large", "medium", "small" } }; The form of a compound literal is (T...

Tags: arrays, c#, string

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Troubleshooting Python Regex Pattern?

Use the "non-greedy" (a.k.a. "minimal") version of the star operator, which is *?. Reference: https://docs.python.org/3/library/re.html#regular-expression-syntax Hence, change your pattern to: r'{foo}...

Tags: python, regex, string

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How to format an array of numbers into a string in C#?

Creating an object array instead of a double array fixes the problem: string a = String.Format("{0} {1:0.00000000e+000} {2:0.00000000e+000}", new object[] { 1, 2, 3 }); The pro...

Tags: c#, string, formatting

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how to print specific list of items from a dict in python?

You do not need to convert user input to a list as you can just iterate over the string as follows: user_input = 'st' app_locate = { 's' : r'C:\Program Files (x86)\Steam\steam.exe', 'd' : r'C...

Tags: python, string, list

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