Zohar

[Solved] How to Replace All Characters Expect White Spaces, with a '▪'

13 posts in this topic

#1 ·  Posted (edited)

Hi

 

I have a String that can be a Multiline string.

The string can contain all possible chars,

and also white spaces like:

- Regular Space

- Tab

- [Enter]s

 

I need to replace all the chars to '▪',

and leave the spaces as they are..

 

What is a simple way to do it via Regular Expressions?

 

Thank you

Edited by Zohar

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#2 ·  Posted (edited)

maybe like this:

Local $sString = 'abcd =' & @TAB & '=' & @CR & '=' & @LF & '=' & @CRLF  & '=?!'
MsgBox(0, '', StringRegExpReplace($sString,'\S','-'))
MsgBox(0, '', StringRegExpReplace($sString,'[^ ^\n]','-'))

EDIT: script correction

Edited by mLipok

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#3 ·  Posted (edited)

Hi mLipok

Thank you very much

Can these 2 RegExp Patterns be united to one somehow?

Edited by Zohar

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Which pattern is correct?


Common sense plays a role in the basics of understanding AutoIt... If you're lacking in that, do us all a favor, and step away from the computer.

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few more examples

Local $sString = 'abcd =' & @TAB & '=' & @CR & '=' & @LF & '=' & @CRLF  & '=?!'
MsgBox(0, '1', $sString)
MsgBox(0, '2', StringRegExpReplace($sString,'\S','-'))
;~ MsgBox(0, '3', StringRegExpReplace($sString,'^[ ]','-'))
MsgBox(0, '4', StringRegExpReplace($sString,'[^ ^\n]','-'))
MsgBox(0, '5', StringRegExpReplace($sString,'(\S|[^ ^\n])','-'))
MsgBox(0, '6', StringRegExpReplace($sString,'([^s\R])','-'))
MsgBox(0, '7', StringRegExpReplace($sString,'([^s\r\n])','-'))

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"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

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#7 ·  Posted (edited)

It seems that I was able to do it with:

StringRegExpReplace($S,"[^\s]","▪")

According to Regular Expressions documentation, s represents all kinds of white spaces..

 

This page seems to be a very useful "cheat sheet":

https://msdn.microsoft.com/en-us/library/az24scfc(v=vs.110).aspx

 

According to that MSDN page, it can even be done in a shorter way than "[^s]"

the shorter way is: "S"

The reason:

"s" matches all white space chars.

"S" matches all chars except white spaces...

 

Slowly slowly I begin to be less deterred by Regular Expressions..

 

Thank you all :)

Edited by Zohar

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StringRegExpReplace($S,"[^\s]","▪")

is it exactly the same like

StringRegExpReplace($S,"\S","▪")

??


Signature beginning:   Wondering who uses AutoIT and what it can be used for ?
* GHAPI UDF - modest begining - comunication with GitHub REST API *
ADO.au3 UDF     POP3.au3 UDF     XML.au3 UDF    How to use IE.au3  UDF with  AutoIt v3.3.14.x  for other useful stuff click the following button

Spoiler

Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind. 

My contribution (my own projects): * Debenu Quick PDF Library - UDF * Debenu PDF Viewer SDK - UDF * Acrobat Reader - ActiveX Viewer * UDF for PDFCreator v1.x.x * XZip - UDF * AppCompatFlags UDF * CrowdinAPI UDF * _WinMergeCompare2Files() * _JavaExceptionAdd() * _IsBeta() * Writing DPI Awareness App - workaround * _AutoIt_RequiredVersion() * Chilkatsoft.au3 UDF * TeamViewer.au3 UDF * JavaManagement UDF * VIES over SOAP * WinSCP UDF * GHAPI UDF - modest begining - comunication with GitHub REST API *

My contribution to others projects or UDF based on  others projects: * _sql.au3 UDF  * POP3.au3 UDF *  RTF Printer - UDF * XML.au3 - BETA * ADO.au3 UDF SMTP Mailer UDF *

Useful links: * Forum Rules * Forum etiquette *  Forum Information and FAQs * How to post code on the forum * AutoIt Online Documentation * AutoIt Online Beta Documentation * SciTE4AutoIt3 getting started * Convert text blocks to AutoIt code * Games made in Autoit * Programming related sites * Polish AutoIt Tutorial * DllCall Code Generator * 

Wiki: Expand your knowledge - AutoIt Wiki * Collection of User Defined Functions * How to use HelpFile * Best coding practices * 

IE Related:  * How to use IE.au3  UDF with  AutoIt v3.3.14.x * Why isn't Autoit able to click a Javascript Dialog? * Clicking javascript button with no ID * IE document >> save as MHT file * IETab Switcher (by LarsJ ) * HTML Entities * _IEquerySelectorAll() (by uncommon) * 

I encourage you to read: * Global Vars * Best Coding Practices * Please explain code used in Help file for several File functions * OOP-like approach in AutoIt * UDF-Spec Questions *  EXAMPLE: How To Catch ConsoleWrite() output to a file or to CMD *

"Homo sum; humani nil a me alienum puto" - Publius Terentius Afer
"Program are meant to be read by humans and only incidentally for computers and execute" - Donald Knuth, "The Art of Computer Programming"
:naughty:  :ranting:, be  :) and       \\//_.

Anticipating Errors :  "Any program that accepts data from a user must include code to validate that data before sending it to the data store. You cannot rely on the data store, ...., or even your programming language to notify you of problems. You must check every byte entered by your users, making sure that data is the correct type for its field and that required fields are not empty."

Signature last update: 2017-06-04

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#9 ·  Posted (edited)

yes..

"s" matches all white-space characters, so we need to negate it with "[^ character_group ]", so it's "[^s]".

"S" matches all chars except white-spaces, so we don't need to negate it with "[^ character_group ]", so the result is simply "S"
 

"S" is the negative of "s"

 

It's all explained so clearly in the tables in the page I gave earlier:

Regular Expressions - Quick Reference

https://msdn.microsoft.com/en-us/library/az24scfc(v=vs.110).aspx

Edited by Zohar

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MSDN is a useful documentation source but in this case it may be a little misleading: this page refer to .Net flavor while AutoIt uses PCRE. Why not look at AutoIt help file?


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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Hi jhcd

Thank you for pointing it out, I was not aware that Regular Expressions have falvors :)

Is there a difference between the .NET flavor and the PCRE one, when doing simple Regular Expressions?

 

Do you have some small example maybe?

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Most elements of "simple" regexp are essentially portable accross engines but there are enough details or large differences between engines to be aware of.

You can compare PCRE and .NET by comparing descriptions of individual elements.


This wonderful site allows debugging and testing regular expressions (many flavors available). An absolute must have in your bookmarks.
Another excellent RegExp tutorial. Don't forget downloading your copy of up-to-date pcretest.exe and pcregrep.exe here
RegExp tutorial: enough to get started
PCRE v8.33 regexp documentation latest available release and currently implemented in AutoIt beta.

SQLitespeed is another feature-rich premier SQLite manager (includes import/export). Well worth a try.
SQLite Expert (freeware Personal Edition or payware Pro version) is a very useful SQLite database manager.
An excellent eBook covering almost every aspect of SQLite3: a must-read for anyone doing serious work.
SQL tutorial (covers "generic" SQL, but most of it applies to SQLite as well)
A work-in-progress SQLite3 tutorial. Don't miss other LxyzTHW pages!
SQLite official website with full documentation (may be newer than the SQLite library that comes standard with AutoIt)

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#13 ·  Posted (edited)

I get it.

OK I will be aware of it, and verify with the appropriate help file, for every programming language that I use.

Thank you for noting it.

Edited by Zohar

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