On 18. Jan 2021, at 10:19, Marcel Taeumel marcel.taeumel@hpi.de wrote:
Hi David.
I wonder whether it's possible to display the assignment operator '_' underscore as Left Arrow.
Well, the original font rendered the underscore character ("_") as a left arrow. One could still extend Shout to add a special text attribute to either "_" or ":=" to change to a font that has such a property. Maybe take a look at FormSetFont and the example in FormInspector >> #embedForm:inText:.
Of course, you could directly change the system's code font to one that renders all "_" as a left arrow, regardless of the context.
Note that it might be confusing for some users to see a left arrow as a single entity while actually having to type ":" and "=".
Also note that we removed all underscore assignments ("_") from Squeak's Trunk repository. For good. :-)
SyntaxHighlightingAsYouTypeLeftArrowAssignment _should_ work: " 'If true, and syntaxHighlightingAsYouType is enabled, all ANSI format assignments ( := ) will be converted to left arrows ( _ ) when a method is selected in a Browser. Whilst editing a method, this setting has no effect - both the left arrow and the ansi format may be used. "
If I enable it, I see _ instead of := in all methods, so it works fine.
Note that the fonts themselves support swapping _ and ^ for arrows.
Variant A: (destructive) See TextStyle>>#makeArrows Variant B: (semi-destructive) See StrikeFont>>#useLeftArrow and StrikeFont>>$#useUnderscore.
However, useLeftArrow is not completely right.
It should read:
useLeftArrow self characterToGlyphMap. characterToGlyphMap at: 96 put: 131. characterToGlyphMap at: 95 put: 130.
After that, If you do
``` Preferences enable: #syntaxHighlightingAsYouTypeLeftArrowAssignment. Preferences standardCodeFont useLeftArrow.
```
You'll see:
However, shout seems to do strange things there if #syntaxHighlightingAsYouTypeLeftArrowAssignment is on. It tries hard to show the "assignment" as _ no matter what.
That said, It is supposed to somewhat work :)
Best regards -Tobias
Best, Marcel
Am 16.01.2021 17:03:31 schrieb stes@PANDORA.BE stes@telenet.be:
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Hi,
Platform: squeak 4.19.5 with Squeak 4.6 or squeak 5.x with Squeak 6.0alpha
I wonder whether it's possible to display the assignment operator '_' underscore as Left Arrow.
"Cuis-Smalltalk" is doing this, looks very nice.
I've found something on wiki.squeak.org :
syntaxHighlightingAsYouTypeLeftArrowAssignment
in preferences.
Go to Menu -> Tools -> Preferences (or Menu -> Apps -> Preferences Browser)
Search : syntaxHighlightingAsYouType
(it's under "browsing')
enabled
syntaxHighlightingAsYouTypeLeftArrowAssignment
enabled
does not work : do I need "Shout"
http://wiki.squeak.org/squeak/5700
is Shout still working in 4.6 ?
I have the impression from the wiki.squeak.org page that there existed a package to display '_' as left-arrow but not sure whether it is still there.
David Stes
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