libLASi-1.1.3 has been released

Alan W. Irwin — Fri, 01 Feb 2019 22:26:47 -0000

libLASi is a cross-platform library originally written by Larry Siden that provides a C++ stream output interface ( with operator << ) for creating Postscript or Encapsulated PostScript documents that can contain characters from any of the scripts and symbol blocks supported in Unicode and by Owen Taylor's Pango layout engine. The library accommodates right-to-left scripts such as Arabic and Hebrew as easily as left-to-right scripts. Indic and Indic-derived Complex Text Layout (CTL) scripts, such as Devanagari, Thai, Lao, and Tibetan are supported to the extent provided by Pango and by the OpenType fonts installed on your system. All of this is provided without need for any special configuration or layout calculation on the programmer's part. For more details about libLASi see http://www.unifont.org/lasi/.

Our development team (http://sourceforge.net/p/lasi/_members/) is proud to announce the release of libLASi-1.1.3 which incorporates several bug fixes for the previous (1.1.2) release. The most important of these are the following:

Improve the libLASi response when pango/fontconfig chooses a pure bitmap font (e.g., the popular Noto Color Emoji) to render a PangoItem. Such a choice is not useful to libLASi because that library can only use outline fonts. Before this fix libLASi threw an error and aborted for this situation. Now it replaces all glyphs in the affected PangoItem with the default missing glyph which is normally an empty box. This change allows software that uses this library (e.g., the PLplot psttf device driver ) to proceed smoothly for this situation.
Identify glyphs by their UCS4 codes rather than arbitrary sequential unique numbers. When bounding boxes were being calculated the old method generated redundant unused glyph storage (same glyph information but different sequential number) in PostScript headers. Furthermore, the numbers were different depending on the order of glyphs encountered resulting in, e.g., octave PLplot results for -dev psttfc (which depends on LibLASi) being different than C results. This fix solves both those issues.
The static version of libLASi is now compiled with the appropriate flag(s) (e.g., -fPIC on Unix platforms) so that external shared objects (such as the PLplot psttfc device) can link to a static version of libLASi without issues.

For further details please consult the libLASi-1.1.3 file release area. That location includes release notes, a detailed ChangeLog, the source tarball, and a detached gpg signature for that tarball.

Enjoy using libLASi-1.1.3 to make some very nice looking PostScript results. Your feedback on the lasi-devel mailing list (http://lists.sourceforge.net/lists/listinfo/lasi-devel) is welcome.

Alan W. Irwin on behalf of the libLASi developers.

libLASi-1.1.2 has been released

Alan W. Irwin — Sat, 26 Jul 2014 22:15:27 -0000

libLASi is a cross-platform library originally written by Larry Siden that provides a C++ stream output interface ( with operator << ) for creating Postscript documents that can contain characters from any of the scripts and symbol blocks supported in Unicode and by Owen Taylor's Pango layout engine. The library accommodates right-to-left scripts such as Arabic and Hebrew as easily as left-to-right scripts. Indic and Indic-derived Complex Text Layout (CTL) scripts, such as Devanagari, Thai, Lao, and Tibetan are supported to the extent provided by Pango and by the OpenType fonts installed on your system. All of this is provided without need for any special configuration or layout calculation on the programmer's part. For more details about libLASi see http://www.unifont.org/lasi/.
Our development team (http://sourceforge.net/p/lasi/_members/) is proud to announce the release of libLASi-1.1.2 which incorporates several bug fixes for the previous (1.1.1) release. The most important of these are fixing an issue with specifying freetype headers https://sourceforge.net/p/lasi/bugs/2/, and fixing a long-standing file repeatability issue https://sourceforge.net/p/lasi/bugs/5.
The libLASi-1.1.2 file release area (including release notes, a detailed ChangeLog, the source tarball, and a detached gpg signature for that tarball) is located at http://sourceforge.net/projects/lasi/files/lasi/1.1.2%20Source.
Enjoy using libLASi-1.1.2 to make some very nice looking PostScript results. Your feedback on the lasi-devel mailing list (http://lists.sourceforge.net/lists/listinfo/lasi-devel) is welcome.
Alan W. Irwin on behalf of the libLASi developers.

libLASI-1.1.1 has been released

Alan W. Irwin — Wed, 21 Sep 2011 21:49:47 -0000

libLASi is a cross-platform library originally written by Larry Siden that provides a C++ stream output interface \( with operator << \) for creating Postscript documents that can contain characters from any of the scripts and symbol blocks supported in Unicode and by Owen Taylor's Pango layout engine. The library accommodates right-to-left scripts such as Arabic and Hebrew as easily as left-to-right scripts. Indic and Indic-derived Complex Text Layout \(CTL\) scripts, such as Devanagari, Thai, Lao, and Tibetan are supported to the extent provided by Pango and by the OpenType fonts installed on your system. All of this is provided without need for any special configuration or layout calculation on the programmer's part. Our development team \(http://sourceforge.net/project/memberlist.php?group\_id=187113\) is proud to announce the release of libLASi-1.1.1 which incorporates several bug fixes for the previous \(1.1.0\) release. The most important of these is a correction for the positioning of diacritical marks that has been suggested by Yotam Medini. Most of this change is internal, but it does require a backwards-incompatible change to part of our public API that is rarely used externally. So most users of libLASi will just need to recompile the applications that link to libLASi \(as forced by our SOVERSION bump\) without actually having to change those applications. For more details about libLASi see http://www.unifont.org/lasi/. The libLASi-1.1.1 file release area \(including release notes, a detailed ChangeLog, the source tarball, and a detached gpg signature for that tarball\) is located at http://sourceforge.net/projects/lasi/files/lasi/1.1.1%20Source Enjoy using libLASi-1.1.1 to make some very nice looking PostScript results. Your feedback on the lasi-devel mailing list \(http://lists.sourceforge.net/lists/listinfo/lasi-devel\) is welcome. Alan W. Irwin on behalf of the libLASi developers.

libLASi-1.1.0 is released

Alan W. Irwin — Sat, 09 Feb 2008 03:25:44 -0000

libLASi is a library originally written by Larry Siden that provides a C++ stream output interface \( with operator << \) for creating Postscript documents that can contain characters from any of the scripts and symbol blocks supported in Unicode and by Owen Taylor's Pango layout engine. The library accomodates right-to-left scripts such as Arabic and Hebrew as easily as left-to-right scripts. Indic and Indic-derived Complex Text Layout \(CTL\) scripts, such as Devanagari, Thai, Lao, and Tibetan are supported to the extent provided by Pango and by the OpenType fonts installed on your system. All of this is provided without need for any special configuration or layout calculation on the programmer's part. Our development team \(http://sourceforge.net/project/memberlist.php?group\_id=187113\) is proud to announce the release of libLASi-1.1.0 which has significant improvements \(a new build system based on CMake and some small code updates to make libLASi more robust\) compared to prior releases. The new CMake-based build system allows building libLASi on both Unix and Windows platforms and automatically detects freetype version so split releases to cater to different freetype versions are no longer necessary. The robustness improvements mean that libLASi now renders an empty box rather than erroring out in those rare cases where glyph information returned by pango/cairo/fontconfig is not available or else is in a glyph form that is unusable by libLASi. This robustness improvement means, for example, the PLplot "psttf" device driver \(which is based on libLASi\) now produces PostScript results for the 30 standard PLplot examples \(representing a wide range of unicode symbol blocks and a more modest range of scripts\) without any errors regardless of what fonts have been installed. For more details about libLASi see http://www.unifont.org/lasi/. The file release area \(including release notes, a detailed ChangeLog, the source tarball for version 1.1.0, and an md5 checksum for that tarball\) is located at http://sourceforge.net/project/showfiles.php?group\_id=187113. Enjoy using libLASi to make some very nice looking PostScript results. Your feedback is welcome. Alan W. Irwin on behalf of the libLASi developers.

New CMake-based Build System

Alan W. Irwin — Mon, 29 Jan 2007 02:45:46 -0000

LASi now uses a unified CMake-based build system. The new build system automatically detects which version of FreeType is available on your system and conditionally compiles appropriate code for your system.

Recent posts to news

libLASi-1.1.3 has been released

libLASi-1.1.2 has been released

libLASI-1.1.1 has been released

libLASi-1.1.0 is released

New CMake-based Build System