FreeM 0.62.2 - Revision history

Smw at 13:12, 25 March 2025

2025-03-25T13:12:35Z

Smw: /* Overview */

2025-03-23T19:43:50Z

Overview

Smw at 18:41, 23 March 2025

2025-03-23T18:41:57Z

Smw: /* Silently truncate long NAME exprs in obsolete MDC dialects */

2025-03-23T18:37:47Z

Silently truncate long NAME exprs in obsolete MDC dialects

Smw: /* Silently truncate long NAME exprs in obsolete MDC dialects */

2025-03-23T18:37:36Z

Silently truncate long NAME exprs in obsolete MDC dialects

Smw: Created page with "== Overview == FreeM 0.62.1 was released on March 23, 2025 == Changes == === Comply with MDC Type A extension X11/96-13 - Portable length of names === This MDC Type A extens..."

2025-03-23T18:36:23Z

Created page with "== Overview == FreeM 0.62.1 was released on March 23, 2025 == Changes == === Comply with MDC Type A extension X11/96-13 - Portable length of names === This MDC Type A extens..."

New page

== Overview ==
FreeM 0.62.1 was released on March 23, 2025

== Changes ==

=== Comply with MDC Type A extension X11/96-13 - Portable length of names ===
This MDC Type A extension requires implementations that exceed the proposed 31-character length limit for identifiers (variable names, function and subroutine names, etc) treat all characters beyond the 31st as syntactically significant, and also requires that identifiers beyond the implementation's length limit generate error <code>M56</code>, instead of being silently truncated.

This behavior applies only when <code>$DIALECT</code> for the routine buffer in question is <code>M5</code>, <code>MDS</code>, or <code>FREEM</code> (the default).

=== Fix reverse $QUERY polyfill ===
In previous releases of FreeM, routine names containing dots were allowed (ex. <code>%SYS.INIT</code>). Reverse <code>$QUERY</code> (implemented in M code) originally used such a routine name.

With the release of FreeM 0.62.1, support for routine names containing dots was removed, as the new object-oriented programming features re-purposed the dot as an indicator that the portion of the identifier preceding the dot represents a class instance, while the portion following the dot represents a method belonging to that class. However, the routine implementing reverse <code>$QUERY</code> did not get renamed in accordance with this change.

While this oversight did not consistently and obviously break functionality of code using reverse <code>$QUERY</code>, such cases were possible, and its use could lead to intermittent segmentation violations, or worse, stack-smashing.

FreeM 0.62.2 renames the M routine such that it no longer contains a dot, thus mitigating the prior regression.

It should be noted that the regression was in M glue code that connects FreeM's C code to David Wicksell's actual polyfill, and David's code did ''not'' contain any bugs. This problem was in no way due to anything David or his code did.

=== Silently truncate long NAME exprs in obsolete MDC dialects ===

This somewhat relates to the work updating FreeM to comply with MDC Type A extension X11/96-13. Previously, code running with a <code>$DIALECT</code> value of <code>M77</code>, <code>M84</code>, <code>M90</code>, or <code>M95</code> had no length limit on identifiers, and treated all characters in such identifiers as syntactically significant.

With this change, FreeM will treat any character beyond the standard 8-character limit as syntactically insignificant when <code>$DIALECT</code> is set to <code>M77</code>, <code>M84</code>, <code>M90</code>, or <code>M95</code>. This should bring these legacy dialects closer to compliance with the MDC standards they attempt to emulate.

← Older revision		Revision as of 13:12, 25 March 2025
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	* Ubuntu Noble and Oracular on amd64, armhf, and arm64		* Ubuntu Noble and Oracular on amd64, armhf, and arm64
	* NetBSD <code>pkgsrc-wip</code>		* NetBSD <code>pkgsrc-wip</code>
		+
		+	== Links ==
		+	* Downloads: [https://freem.coherent-logic.com/downloads.cfm https://freem.coherent-logic.com/downloads.cfm]
		+	* Documentation: [https://freem.coherent-logic.com/docs/0.62.2/freem.html https://freem.coherent-logic.com/docs/0.62.2/freem.html]

← Older revision		Revision as of 18:41, 23 March 2025
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	Note that the default value of <code>$DIALECT</code> is <code>FREEM</code>, which enables all features from the Millennium Draft Standard, as well as all FreeM vendor extensions, and as such, most code will not be affected by this change.		Note that the default value of <code>$DIALECT</code> is <code>FREEM</code>, which enables all features from the Millennium Draft Standard, as well as all FreeM vendor extensions, and as such, most code will not be affected by this change.
		+
		+	== Packaging ==
		+
		+	FreeM 0.62.2 is natively packaged for:
		+
		+	* Solaris 5.8 on 64-bit SPARC
		+	* Solaris 5.10 on 64-bit Intel
		+	* OpenIndiana Hipster 5.11 on 64-bit Intel
		+	* Debian Bookworm, Bullseye, and Trixie on amd64, i386, armhf, and arm64
		+	* Ubuntu Noble and Oracular on amd64, armhf, and arm64
		+	* NetBSD <code>pkgsrc-wip</code>

← Older revision		Revision as of 18:37, 23 March 2025
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	With this change, FreeM will treat any character beyond the standard 8-character limit as syntactically insignificant when <code>$DIALECT</code> is set to <code>M77</code>, <code>M84</code>, <code>M90</code>, or <code>M95</code>. This should bring these legacy dialects closer to compliance with the MDC standards they attempt to emulate.		With this change, FreeM will treat any character beyond the standard 8-character limit as syntactically insignificant when <code>$DIALECT</code> is set to <code>M77</code>, <code>M84</code>, <code>M90</code>, or <code>M95</code>. This should bring these legacy dialects closer to compliance with the MDC standards they attempt to emulate.

−	Note that the default value of <code>$DIALECT</code> is <code>FREEM</code> which enables all features from the Millennium Draft Standard, as well as all FreeM vendor extensions, and as such, most code will not be affected by this change.	+	Note that the default value of <code>$DIALECT</code> is <code>FREEM</code>, which enables all features from the Millennium Draft Standard, as well as all FreeM vendor extensions, and as such, most code will not be affected by this change.

← Older revision		Revision as of 18:37, 23 March 2025
Line 25:		Line 25:

	With this change, FreeM will treat any character beyond the standard 8-character limit as syntactically insignificant when <code>$DIALECT</code> is set to <code>M77</code>, <code>M84</code>, <code>M90</code>, or <code>M95</code>. This should bring these legacy dialects closer to compliance with the MDC standards they attempt to emulate.		With this change, FreeM will treat any character beyond the standard 8-character limit as syntactically insignificant when <code>$DIALECT</code> is set to <code>M77</code>, <code>M84</code>, <code>M90</code>, or <code>M95</code>. This should bring these legacy dialects closer to compliance with the MDC standards they attempt to emulate.
		+
		+	Note that the default value of <code>$DIALECT</code> is <code>FREEM</code> which enables all features from the Millennium Draft Standard, as well as all FreeM vendor extensions, and as such, most code will not be affected by this change.

@@ Line 1: / Line 1: @@
 == Overview ==
-FreeM 0.62.1 was released on March 23, 2025
+FreeM 0.62.2 was released on March 23, 2025
 == Changes ==