Cuis-Automatically escape a complex string: Difference between revisions
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* Suppose the string you want to quote is <code>echo "i'm nicola, who are you?"</code> |
* Suppose the string you want to quote is <code>echo "i'm nicola, who are you?"</code> |
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* Open a TextMorph |
* Open a TextMorph |
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<syntaxhighlight lang="smalltalk"> |
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te := TextEditor openTextEditor . |
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</syntaxhighlight> |
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* Write the string into it |
* Write the string into it |
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* Go back to the Workspace and type this |
* Go back to the Workspace and type this |
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<syntaxhighlight lang="smalltalk"> |
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te model actualContents asString . "=>" 'echo "hello, i''m nicola, who are you?"' |
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</syntaxhighlight> |
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* Voila<nowiki>', you have your string automatically escaped, notice the doulbe $' character in i''</nowiki>m nicola. |
* Voila<nowiki>', you have your string automatically escaped, notice the doulbe $' character in i''</nowiki>m nicola. |
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* Some time ago I made a video tutorial about this with a much worst string. There the procedure is a bit different, it was specific for Squeak. |
* Some time ago I made a [https://youtu.be/clJIJnQ5vQ4 video tutorial] about this with a much worst string. There the procedure is a bit different, it was specific for Squeak. |
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----Dr. Nicola Mingotti firt wrote this on 21-Sep-2021. Tested in Cuis5.0-4834.image |
----Dr. Nicola Mingotti firt wrote this on 21-Sep-2021. Tested in Cuis5.0-4834.image |
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Latest revision as of 22:34, 4 May 2025
Problem You have a long shell command, or an SQL command, or something else which may contain tne $' Character. You can escape the $' by doubling it yourself but it will become quite hard to read your original string. Is there a better way?
Solution. Yes, there is a nice trick to achieve that.
- Suppose the string you want to quote is
echo "i'm nicola, who are you?" - Open a TextMorph
te := TextEditor openTextEditor .
- Write the string into it
- Go back to the Workspace and type this
te model actualContents asString . "=>" 'echo "hello, i''m nicola, who are you?"'
- Voila', you have your string automatically escaped, notice the doulbe $' character in i''m nicola.
- Some time ago I made a video tutorial about this with a much worst string. There the procedure is a bit different, it was specific for Squeak.
Dr. Nicola Mingotti firt wrote this on 21-Sep-2021. Tested in Cuis5.0-4834.image