[Alphacocoa-devel] [alphacocoa:tickets] Re: #251 Strange hang

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Hi Bernard,

The % character has certainly been there on occasion, as does the notion of automatic line breaking (which I do have turned on).  That said, it is one of those things that was infrequent and not something that I was ever thinking about until it started happening, whereupon it was a bugger to get rid of.  Anyway, what you describe has that ring of familiarity to it.  I would be happy if my bug was marked as a duplicate of the earlier ones and, if it persists after the next upgrade, it can always be re-opened.

Cheers, Chris.

On 2 Jun 2021, at 5:08 pm, Bernard Desgraupes <bde...@us...<mailto:bde...@us...>> wrote:

External email: Please exercise caution

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Hi Chris,
Bugs #246 and #249 have been explicitly fixed. I don't know if this is the same problem as the one you encounter but here are the circumstances that triggered the apparent freeze:
it occurred potentially in any mode provided the current document had Automatic Line Breaking turned on and there was an escaped comment character in the current line. For instance, in TeX mode (where the comment symbol is %), a line like

Optimus pretosius corrumperet ossifragi \% catelli...

triggered the freeze when the cursor's position reached the maximum line length (usually position 70 on the line) and also during a reflow with cmd-I. A quoted comment character (like "%" in TeX mode) had the same effect. In Tcl mode, \# or "#" would cause the problem etc.
Explanation: when deciding to break a line or not, Alpha checks whether the current line is a comment or not, so it looks for a true comment symbol (that would not be escaped or enclosed in quotes). There was unfortunately a mistake in the code: the start position of the search was not properly updated so Alpha kept looking from the same position again, and again, and again...
This has been fixed in Alpha 9.2.3.

Do you observe the same or similar circumstances ?

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[tickets:#251]<https://sourceforge.net/p/alphacocoa/tickets/251> Strange hang

Status: open
Created: Thu Apr 22, 2021 06:00 AM UTC by Chris Skeels
Last Updated: Tue Jun 01, 2021 08:37 PM UTC
Owner: nobody
Attachments:

  *   Problem Report.txt<https://sourceforge.net/p/alphacocoa/tickets/251/attachment/Problem%20Report.txt> (3.0 MB; text/plain)

Every now and then, not often, I find that Alpha hangs for no apparent reason. This most recent time I caught the report that would have been sent to Apple, in case this is of any benefit at all. It doesn't happen so often that it is a major event, but it is always annoying when it does happen. Like as not it is interaction with something else on my machine rather than Alpha itself.

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** [tickets:#251] Strange hang**

**Status:** open
**Created:** Thu Apr 22, 2021 06:00 AM UTC by Chris Skeels
**Last Updated:** Wed Jun 02, 2021 07:08 AM UTC
**Owner:** nobody
**Attachments:**

- [Problem Report.txt](https://sourceforge.net/p/alphacocoa/tickets/251/attachment/Problem%20Report.txt) (3.0 MB; text/plain)

Every now and then, not often, I find that Alpha hangs for no apparent reason.  This most recent time I caught the report that would have been sent to Apple, in case this is of any benefit at all.  It doesn't happen so often that it is a major event, but it is always annoying when it does happen.  Like as not it is interaction with something else on my machine rather than Alpha itself.

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