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How do I convert a String in MIPS to either upper or lower case?

So I am trying to optimize my MIPS code. Right now my code works by counting the number of upper case letters and then lower case letters and finally adds the total occurrences.

Since I have to go through double the loops to find the occurrences. I really want to change my string to either upper or lower case first so I do not have to go through the loop twice the times.

.datastr: .asciiz "Covert this to lower"

.text//loads the string here and//goes through the loops

I need to translate the address:

www.example.com/TEST in ---> www.example.com/test

Every time I try doing the trim method and the lowercase method it doesn't show the way I want it.

sentence.trim();sentence.toLowerCase();System.out.println("\"" + sentence + "\"" + " ---> ");

For example, if I input " Hello World! ", it will print out " Hello World! " and not use any of the methods.

Sorry if this is something that was asked before, but I am not able to find the answer to this. How do I create a MySQL select statement to select all strings from the database whose first characters is either in lowercase or uppercase.

I'd normally use something like this to select 10 random words from English Word Database with length of more than 8 characters:

SELECT word FROM en_dictionary WHERE CHAR_LENGTH(word)>8 ORDER BY RAND() LIMIT 10

Unfortunately, this also selects the words in Capital letters that I don't want in the results, as they are usually the terms such as names of cities, species etc.:

So, my question is: Is there a way to select only the words that start with the lowercase alphabet characters (or uppercase)?

I could do something like this and it'd work, but it'd be a very ugly statement:

AND word LIKE BINARY 'a%' AND word LIKE BINARY 'b%' AND word LIKE BINARY 'c%'...

Currently, I'm making custom wordclouds based on the type of values/text want to see and dig into. Issue here is, while for numerical values everything aggregated correctly together, for text values we have multiple values being the same, albeit them being different due to uppercase & lowercase characters.

I already tried following filter for the word cloud

{  "lowercase": {    "field": "q"  }}

but I get following error

Error in visualization

[esaggs] > Internal Server Error

The expectation is to have for instance following text values aggregated together. So where we currently might have this result in the background

text_value ; q

Fuel pump ; 5

fuel pump ; 40

FUEL PUMP ; 3

we would like to have

text_value ; q

fuel pump ; 48

which would mean that I have no problem putting everything to lowercase for this use case as the relevancy of lowercase/uppercase is not really the issue here.