CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file. See commit-and-tag-version for commit guidelines.

0.15.8 (2024-12-12)

New Features

• build: Add rockspec and build tooling for rusile module (d1ed71e)
• cli: Output runtime errors pretty-printed for readability (fb45160)
• fonts: Configure macOS to fallback from macfonts to fontconfig (4b6aa5e)
• math: Add (AMS)LaTeX-like stackrel, overset and underset (bfd41c0)
• math: Minimal support for accents in MathML and TeX-like commands (dd0b1b5)
• packages: Add handler for passing raw content to verbatim (46b0164)

Bug Fixes

• build: Fix Lua module detection to fail if not found (18f707b)
• build: Remove obsolete workaround for macOS dependency paths (3fb891a)
• build: Set module build flags needed for darwin shared libraries (625ea69)
• cli: Correctly pass through font manager preference from Rust CLI (d2fb48a)
• core: Avoid internal error when also erroring due to user provided content errors (d83e63c)
• inputters: Discard duplicate values being parsed without keys in XML (4bb31f0)
• math: Change under/over constructs' inheritance of the base atom type (70d4f69)
• math: Erroneous capital H and I in fraktur variant (#2183) (3263be3)
• outputters: Don't attempt to create output if we error before processing even starts (d38ff03)
• rusile: Adjust module loader to Darwin's shared module extension (2c5ea3e)

0.15.7 (2024-11-26)

New Features

• build: Add configure flag to skip checks for all developer tools (c01c867)
• build: Enable --with[out]-EXECUTABLE=PATH configure flags for tooling dependencies (89b5836)
• core: Set Lua's interal locale so builtin functions respond to document language (a614169)
• core: Set system locale for subprocesses to match the document language (b28cafd)
• math: Add pre-defined TeX-like operator functions (cos, sin, etc.) (8d83821)
• math: Support TeX-like apostrophe and multiplication sign as primes and asterisk (b8f35ff)
• math: Support TeX-like left..right delimiter syntax (960dc3f)
• math: Support the MathML operator dictionary and many TeX-like aliases (3dd25e9)
• packages: Add lightweight CSL engine (8d3961c)
• packages: Keep track of cited bibliography entries (57b3b7c)
• packages: Use experimental CSL renderer for BibTeX (808c6bb)
• utilities: Add function to set environment variables (0f0ed02)

Bug Fixes

• build: Support cross-compilation of Rust binaries (#2178) (19c7c1d)
• math: A period must be allowed in TeX-like math syntax for numbers (56edc14)
• math: Add math.font.script.feature setting, defaulting to ssty (2adc912)
• math: Improve spacing rules on limit-like operators (781f62a)
• math: Spacing rules must distinguish binary and unary operators (81a1be5)
• math: Suppress invisible operators in MathML (#2177) (72faad5)
• math: The (escaped) percent is an ordinary atom in TeX-like syntax (4170719)
• packages: Fix bogus command in pandoc modules's definition lists leaking bold (8c9348b)

0.15.6 (2024-11-14)

New Features

• build: Add --with-vendored-luarocks=dir for use in distros with pseudo-system path handling (e93f072)
• cli: Catch missing required arguments at parse time (84f0d78)
• cli: Mimic Lua VM's ;; to extend not replace the default package paths (bb47f21)
• core: Add px unit as 0.75pt as per CSS3 (59f4bfd)
• core: Add separate crate to enable exporting interfaces to Lua (3a95a48)
• core: Extend SU.collatedSort for complex table sorting (3854be8)
• docker: Splice SILE's vendored rocks tree into system LuaRocks (548f426)
• languages: Add Albanian (sq) basic support (a1eedfc)
• languages: Add Belarusian (be) basic support (084f81d)
• languages: Add bibliography localizations for Swedish (#2125) (17371f3)
• languages: Add bibliography localizations for Turkish (84f15e9)
• languages: Add Church Slavonic (cu) basic support (01bead5)
• languages: Add Coptic (cop) basic support (e25b806)
• languages: Add Friulan (fur) basic support (4b88d91)
• languages: Add Galician (gl) basic support (b5116ed)
• languages: Add Interlingua (ia) basic support (6f920e6)
• languages: Add Kurmanji (kmr) basic support (c700786)
• languages: Add Macedonian (mk) basic support (c4ef9e9)
• languages: Add Occitan (oc) basic support (4610122)
• languages: Add Pāli (pi) basic support (13c2531)
• languages: Add Telugu (te) basic support (237d06d)
• languages: Add Upper Sorbian (hsb) basic support (51ac4f8), closes #1994
• math: Add mathcal, mathbb and similar commands in TeX-like math (c867d60)
• math: Add more TeX-like math commands behaving as big operators (ac9337e)
• math: Support a TeX math like text command (518e497)
• math: Support MathML bevelled fractions (567ac54)
• math: Support MathML maction (basic) and mstyle (partial) (0df93b1)
• math: Support MathML movablelimits attribute (92c678a)
• math: Support MathML mpadded and refactor TeX-like phantoms (d579096)
• math: Support MathML mphantom and TeX-like phantom, hphantom, vphantom (46e5954)
• math: Support MathML mroot element (88ebff7)
• math: Support MathML mtext and ms elements (3023b93)
• math: Support mathvariant on special extra greek characters (6f379da)
• math: Support square roots (7efd24d)
• math: Support TeX-like math limits (eb402c5)
• rusile: Enable embedding of Rusile module (693d7d4)

Bug Fixes

• build: Correct regression in v0.15.5 in generating embedded files list (dae2f7f)
• build: Smooth out build on ICU 76.1 per Homebrew report (8390534), closes #2152
• cli: Correct return value handling when process() doesn't lift weight (fb6b866)
• cli: Fix handling of --option flag in Rust CLI (a77170e)
• core: Correct module load paths when building in developer mode (4fbb6c0)
• docker: Setup system locales in containers where it actually counts, not before (55a4ba3)
• inputters: SIL commands and environments must generate the same syntax tree (4854992)
• languages: Add missing hyphenation patterns in polytonic Greek (42d14dd)
• math: Add missing MathML mathvariant mappings (803d699)
• math: Avoid page breaks before display math equations (19fd61f), closes #2160
• math: Correct math greek symbols and their var-alternate (6346a2d)
• math: Correct sub/superscript position for subformulas vs. symbols (6827eb9), closes #2122
• math: Default table row/column spacing must depend on the math font size (9ce5271)
• math: Empty mrow's in munderover should not affect the baseline (6f67be5)
• math: Fractions must have padding to avoid visual confusion (1c009c7)
• math: Handle LaTeX-like math top accent commands correctly (f4c513a)
• math: Honor stretchy attribute on MathML mo elements (bde46cd)
• math: Paired open/close atoms shall be forced in a mrow in TeX-like math (4bbeaa6)
• math: Stretchy symbols should work on large content (workaround) (589c058)
• math: Support basic operator stretching along the inline axis (b6e054e)
• math: Support linethickness attribute on MathML mfrac (e0559e8)
• math: Top-level math element must behave as an (horizontally stacked) mrow (1f1a1a0), closes #1293
• math: Wrong condition on moveable limits (workaround) (19906b9)
• math: Wrong vertical alignment of integral signs (a42181f)
• packages: Ensure package dependency verbatium is loaded when using autodoc (3a0ef46)
• packages: Honor margins and base line skips in verbatim mode (58f65d5)
• shapers: Measure a character should also return its depth (e243b2f)
• typesetters: Obey blank lines in verbatim-like context (94cfe06)
• utilities: Fixup AST debugger to handle anonymous content (c50dd07)
• utilities: Normalize formatting of messages, warnings, and errors (a47b8f3)

0.15.5 (2024-08-29)

New Features

• packages: Support biblatex date field and improve date formatting (5169d67)

Bug Fixes

• build: Fix distribution of unit tests clean up dist file list (00abf9b)
• classes: Make document state available during class's post init (71336b9)
• cli: Suppress trace info in quiet for warnings but do show errors (e12dcc9)
• packages: Parse and split all bibtex name fields (e3a7dc1), closes #2052
• packages: Use non-breakable space in bibTeX name splitting, not tilde (f4ea4ed)

0.15.4 (2024-06-28)

New Features

• build: Add a developer target to test build dist without automake (7bdaf16)
• languages: Add Brazilian Portuguese specific hyphenation points (895c575)
• packages: Biblatex data inheritance and field mapping (646e3a4)
• packages: Support [@string](https://github.com/string) syntax in bibTeX bibliography (63083ad), closes #2051
• packages: Support [@xdata](https://github.com/xdata) entry type and xdata field in bibTeX bibliography (ca906f0)
• packages: Support crossref field in bibTeX bibliography (c4ae919), closes #2021
• tooling: Add developer target to build Rust API docs (384fa46)

Bug Fixes

• build: Avoid building sile binaries if not using them (bbde8e6)
• build: Avoid the perceived need for an extra automake cycle in dist tarball (f634a60)
• build: Do not distribute main man page, requires Rust tooling (26a6346)
• build: Don't distribute distfiles list with configure option specific output (b9d95fd)
• build: Flag transitive dependency on Git if not using system LuaRocks (ea2d501)
• languages: Always set Fluent locale when setting document.language (283fdc3)
• packages: Correct handling of ampersands and tildes in bibtex (aaa613f), closes #2050 #1860
• packages: Ignore [@preamble](https://github.com/preamble) in bibTeX bibliography (742a0c4), closes #2051

0.15.3 (2024-06-10)

Bug Fixes

• core: Allow LUA_PATH env var to take effect at runtime (e573c2d)

0.15.2 (2024-06-10)

Bug Fixes

• build: Bundle all assets in source distribution (5198641)

0.15.1 (2024-06-08)

Bug Fixes

• build: Distribute vendored compat-5.3.c source file (3c469d6)
• build: Remove Git from configure dependencies (352a125)
• classes: Correct order of operations when paragraphs are ended manually (08f1a7b)
• packages: Change retrograde package so 'target' version works as expected (6ad9b76)

0.15.0 (2024-06-06)

⚠ BREAKING CHANGES

• packages: Lists now respect the input document spacing and normal settings with regard to paragraphs breaks before, after, and inside lists. This is place of overriding the paragraph skip settings to match the list item spacing setting and always forcing paragraph breaks before and after lists.
• classes: Hitherto SILE has cleared the current.parindent setting as soon as it used it at the beginning of a paragraph. With this release, the setting is not being cleared until a paragraph is explicitly ended. This will not have an affect on many documents, but could completely blow up layout code that implicitly relied on the effect. Normal paragraphs (e.g. separated by a blank line in the input) and any use cases that explicitly called far ending a paragraph (e.g. by calling \par) will be unaffected. But anywhere a paragraph break was simulated by adding vertical space, the indentation will not be applied the next start of a line. This means that calling any variant of \skip inline in a paragraph will result in content beginning on a new line without using the parindent setting.

Fixing this change in behavior requires either explicitly resetting the current.parindent setting after it is initially used or explicitly ending a paragraph before or after placing a vertical skip.

• inputters: Input documents using the SIL language will now retain whitespace more consistently. Whitespace following environment blocks is no longer swallowed in differently than space following command syntax. Consecutive line breaks in the input will consistently trigger new paragraphs no matter what they follow.

Note that this change cannot be patched over via the retrograde package settings because by the time your document could specify what packages to load or settings to set, the input document has already been parsed. To achieve the same rendering results where environments could be ended leaving any amount of blank lines and still joined to the following content as part of the same paragraphs, you will need to remove the extranious whitespace.

• core: Several top level instance creaters of various names have been re-organized under SILE.types.

Specifically SILE.color, SILE.measurement, and SILE.length have the same names, just under SILE.types.. Additionally SILE.nodefactory is now SILE.types.node and SILE.units is not SILE.types.unit.

This brings a little bit of sanity to the naming schemes so that you can guess how to use something from the name, but it also makes room for 3rd party add ons to more easily extend or replace these functions. It also makes it easier to start substituting Rust bits where desired.

reorg

• core: Use SILE.papersize() instead of SILE.paperSizeParser()
• classes: The "center", "raggedleft" and "raggedright" environments formerly reset the margins (left or right skips), meaning they'd take the full frame width. They all cancelled the paragraph indent. The new behavior honors the fixed part of the parent context's margins, meaning that if you have an environment playing with margins such as an epigraph or an indented quote, those margins are not lost. The raggedleft and raggedright environment also now no longer cancel the paragraph indent.
• classes: The \script function was heavily overloaded to have many different functions at once and more targeted tools were introduced in SILE v0.14.0 To load 3rd party modules designed for use with SILE, use \use[module=...] instead of \script[src=...]. To run arbitrary Lua code inline use \lua{}; Lua code may be provided inline or externally via either a require= option to load a regular (non-SILE) Lua module using the Lua module path or src= option to load a file by file path.
• core: For ... reasons ... the default width of spaces in SILE has been a hightly opinionated and non-standard 1.2 spaces. While it can be argued that this makes some fonts and some documents look better, it is a very strange thing to have as a global default. Unfortunately setting it back to a more conventional 1 space is a major change and will cause many/most documents to reflow.

The old default can be recovered either in documents with:

\set[parameter=shaper.spaceenlargementfactor,value=1.2,makedefault=true]

...or even from the CLI when rendering a document:

$ sile -e 'SILE.settings:set("shaper.spaceenlargementfactor", 1.2, true)'

• core: The previous default paragraph indent was hard coded with a point size (20pt) that did not adapt will to different fonts or page layouts. The new default uses a relative unit that will adjust based on the leading (1bs). This will cause most documents to reflow. To keep them the same the setting may be reset to the old default either in the document:

  \set[parameter=document.parindent,value=20pt,makedefault=true]

...or even from the CLI when rendering a document:

$ sile -e 'SILE.settings:set("document.parindent", "20pt", true)'

• utilities: For modules that rely on SILE.utilities (SU), and in particular raw content handling functions subContent(), walkContent(), stripContentPos(), hasContent(), and contentToString(), these and similar functions have been moved into SILE.utilities.ast (SU.ast). The subContent() implementation also no longer adds id="stuff" attributes to everything.
• packages: The default rendering of Ruby readings has changed from just using a bold weight to using the OpenType +ruby feature. Fonts that support this should work with no change, but documents rendered in fonts that do not support it will neet to set the ruby.opentype feature to false to get the same rendering method as before.
• classes: The former implementation of the "em" command did not support nesting and was just setting the font style to italic. The command now alternates italic and regular when nested.
• packages: The current (pseudo) idempotent behavior when loading a package potentially clobbers anything that has been modified since the last load. Loading a package, then modifying a function it provides, then loading the same package again will clobber the modifiecation. This is good for idempotency but not very good for user experience when you may not be modifying all aspects of a document render pipeline at once, as in when using templates.

This change makes the default behavior to run setting, raw handler, and command registrations only once. An altertanive to :loadpackage() called :reloadpackage() can be used to force all these registrations to be rerun when the goal is to make sure of a specific state.

• classes: Remove obsolete/broken native markdown class
• core: The internal package manager that installed stuff to the system from inside SILE was deprecated back in v0.13.2. It is now completely removed. External 3rd party packages are fully supported using LuaRocks and are much more robust.

Features

• build: Make vendoring Lua sources controllable at build time (773245b)
• build: Set default Lua version to prefer LuaJIT (#1873) (8a8b506)
• classes,outputters,packages: New approach to full bleed printing, cropmarks, background (aa538e2)
• classes: Make text alignment commands honor nesting and margins (7cde8a3)
• classes: Provide a "blockquote" environment in the plain class (75a8bdf)
• classes: Support emphasis nesting (0c1c017)
• cli: Add configure time option to embed Lua resources in binary (9f11100)
• cli: Allow more than one input document (Rust edition) (bdfeecd)
• core: Allow multiple runtime SILE_PATH segments (b329923)
• core: Allow multiple runtime SILE_PATH segments in Lua binary as well as Rust (5e05fa9)
• core: Automatically include project-local lua_modules in module loader path (fd940a9)
• core: Make it easier to add project-specific LuaRocks trees as dependencies (796b344)
• docker: Add all default fonts and package management tooling to container (6bd5dc0)
• docker: Automatically adjust Docker user to owner of mounted data (4ee535f)
• docker: Deploy upcoming major version branches to a develop tag on GHCR (bd2c6f3)
• docker: Enable data for all provided tools that support system locales (c01203f)
• docker: Make it easier for users to install stuff into the images (71aa6f2)
• inputters: Add formal grammar specification for SIL files (5f78af3)
• inputters: Output source comments in SIL debug info (672226f)
• math: Support numbering display math equations (d2e348f)
• outputters: Add hook system to outputters (b5422a8)
• outputters: Add support for pdf elements to debug outputter (a33e5c7)
• packages: Add package to reset some defaults similar to previous releases (fa8d401)
• packages: Backport default font change from v0.9.5 to retrograde package (6b5f52d)
• packages: Expand retrograde package to handle behavior shims (a549b44)
• packages: Expand retrograde package to shim paragraph indentation changes (bead177)
• packages: Make most package _init() actions run only once (ed3331a)
• packages: PDF links can now span multiple lines (842cb56)
• packages: Remove arbitrary six-level maximum to list nesting (ee76eab)
• packages: Strikethrough and underline can span multiple lines (3eb1a1f)
• packages: Use OpenType +ruby feature for ruby, toggle with setting (624e3a8)
• settings: Add hook callback system for settings (efade76)
• settings: Allow \set with no parameter as a temporary wrapper (59755c9)
• tooling: Add direnv support (a52e6e5)
• tooling: Add DRAFT flag to allow rendering docs without regenerating TOC (f581b54)
• tooling: Add nix builds with various lua versions (c28cd94)
• tooling: Add nix packages building sile with clang (5b30695)
• tooling: Add tooling to generate Lua API documentation from sources (3995e14)
• types: Add __tostring to colors for easier debugging (e1106a7)
• typesetter,shaper: Add automated italic correction heuristics (540b0cf)
• typesetters: Add base typesetter (multi-)liner support (e645dbd)
• utilities: Add Greek alphabetical (non-arithmetic) numbering (34e2e53)
• utilities: Automatically cast anything passed to SU.debug to a string (da80c56)
• utilities: Make it easier to search breadcrumbs excluding the current command (64e8d3b)
• utilities: Refactor and extend AST-handling utilities (fc7e7fb)

Bug Fixes

• backends: Fix plain text backend to work in LuaJIT/Lua 5.1 (d0a2a1e)
• build: Adjust macfonts module to more robustly import AppKit (c0571be)
• build: Avoid race condition by making sure binary exists before use (d37da35)
• build: Correct configure flag so debug builds are not release mode (d931849)
• build: Fix build configuration for --with-system-libtexpdf (d22ea34)
• build: Move build-time dependency checks out of runtime dep check configure flag (5e587bd)
• build: Stop copying libraries places autotools doesn't normally handle them (68d9008)
• build: Switch from xz to zst compression for official artifacts (685780d)
• classes: Reset current parindent at end of paragraphs, not beginning (84c70fd)
• core: Output makedepends file after class finish and snippets (f59670c)
• core: Use unique function name so static linking doesn't clobber Lua-5.1 (ccdb8a2)
• docker: Use LuaJIT not Lua5.1 for docker builds (7687bf6)
• inputters: Allow empty string as option value in SIL parser (160501c)
• inputters: Correct typo in SIL parser, disallow conflicting commands (923b11e)
• inputters: Make whitespace after envirnomnts behave the same as commands (6d51ee3)
• languages: Handle UTF8 properly in Liang hyphenation (b33c11c)
• languages: Load default en language support if none explicitly requested (#2036) (d02b063)
• packages: Color changes shall not affect other content at page breaks (9d6d409)
• packages: Correct bogus mixup of variable names in package inits (8dfe3c3)
• packages: Fix broken font fallback clear function (2b15de5)
• packages: Use current pagebuilder API not deprecatod one internally (730150f)
• tooling: Add npx to nix' devShell (624137f)
• tooling: Fix Nix build for rustier sile (f53904c)
• tooling: Really ignore all nix symlinks (34b0493)
• typesetters: Debug hbox could show incorrectly offset boxes (c5113b7)
• utilities: Cast empty to default and only ever return a bool from SU.boolean() (ba2e37a)
• utilities: Fix broken breadcrumbs:contains() (f1972bd)

Performance Improvements

• utilities: Leave tostring() casting to after debug invocations, not before (72965ad)

Miscellaneous Chores

• classes: Deprecate \script in favor of more explicit options (b738507)
• classes: Remove obsolete/broken native markdown class (133567e)
• core: Change default paragraph indent to 1 baseline skip (542c869)
• core: Change default space width to 1 space (66cdbad)
• core: Deprecate SILE.paperSizeParser() (4486a19)
• core: Remove deprecated package manager (4836a93)

Code Refactoring

• core: Move assorted classes from oddball names in core to types (8287a0f)
• packages: Stop overriding paragraph handling in and around lists (8b2117c)

0.14.17 (2024-02-07)

Features

• languages: Enable explicit hyphen repetition handling in Croatian (c29545d)
• languages: Enable explicit hyphen repetition handling in Czech (b05d621)
• languages: Enable explicit hyphen repetition handling in Portuguese (2a58d96)
• languages: Enable explicit hyphen repetition handling in Slovak (82640b0)
• languages: Enable explicit hyphen repetition handling in Spanish (8db7f23)
• packages: Add balancing option to makecolums command (#1950) (b5ce8e6)

0.14.16 (2024-01-27)

Bug Fixes

• tooling: Re-merge so release tag is on master branch (e8eaf11)

0.14.15 (2024-01-27)

Features

• languages: Accommodate alternate Turkish hyphenation guidelines at apostrophes (92904fc)
• typesetters: Support for speaker change introduced by em-dash (2afa4cb)

Bug Fixes

• languages: Break at ela geminada in Catalan cancels the punt vola (f8c4c1e)
• languages: Break at explicit hyphen in Polish repeats the hyphen (0f8c7aa)
• languages: Remove multiple repetitions of U+00A0 nbsp in French (0356a49)
• languages: U+00A0 nbsp in French causes unexpected word breaks (b93975c)

0.14.14 (2023-12-23)

Features

• cli: Change module load error to suggestion for how to install 3rd party modules (c280050)
• languages: U+00A0 non-breaking space must be stretchable by default (b769a63)
• typesetters: Support U+00AD soft hyphen as discretionary break (285507e)

Bug Fixes

• backends: Fix plain text backend to work in LuaJIT/Lua 5.1 (b185d49)
• cli: Stop outputting error messages twice on failure to process main file (da5d609)
• core: Use nil-safe and Lua-version-robust table utils (2405b23)
• packages: Adjust dropcap logic for letters with a depth (fd6963d)

0.14.13 (2023-10-30)

Features

• classes: Add landscape option to base class (#1892) (0fb9ade)
• cli: Allow multiple runtime SILE_PATH segments (backport from develop branch) (e7c8fe2)

Bug Fixes

• frames: Update frame constraints with new frame IDs after \makecolumns (b2d6b4f)

0.14.12 (2023-10-11)

Features

• i18n: Add Portuguese localizations for bibtex package (#1859) (f716c35)
• utilities: Add utility function for console messages without trace info (18526ce)

Bug Fixes

• build: Make sure vendored luarocks isn't a phony target that runs repeatedly (713434d)
• core: Allocate exactly what we use, not a guess with an extra just in case (640ded0)
• core: Correct usage of HarfBuzz when passing a filtered list of shapers (f488643)
• core: Fixup class loader so cache is all Lua module specs (#1863) (7efff5b)
• packages: Don't warn on TOC content change if not actually used (87c443d)

0.14.11 (2023-08-23)

Bug Fixes

• core: Leave legacy masterFilename alone but use first input filename internally (29667a7)
• core: Make masterFilename actually a filename (759131e)
• packages: Avoid mix-and-matching indents in fixed-width specimin blocks (de41cac)
• utilities: Use real semver parser for deprecation warnings (5f0fed5)

0.14.10 (2023-07-11)

Features

• cli: Allow more than one input document (d20cbd8)
• i18n: Add localized strings for Cantonese and Chinese (cb67d36)
• packages: Add document class styling in autodoc (e70fa50)
• packages: Provide API for registering raw handlers linked to packages (45cd3ac)

Bug Fixes

• build: Avoid build artifacts being listed for installation (29c2ccd)
• core: Avoid stack overflow in Harfbuzz module (#1793) (5001efe)
• outputters: Setup --makedeps to play along without explicit --output (6ff2e16)
• packages: Converters package no longer worked after 0.13.0 (433795c)
• packages: Correct chord line height and chord font use (65961c6), closes #1351

0.14.9 (2023-04-11)

Features

• classes: Add Picas unit to cover all units speced in Docbook (88f03fa)
• classes: Implement the\code command in the plain class (0d371ba)
• cli: Add -q / --quiet flag to reduce output to essential errors (#1759) (f69ed20)
• core: Support initializing fill glues with a width (#1765) (5bc372a)
• packages: Introduce urlstyle hook in the url package (8f6235d)
• packages: New scalebox package for arbitrary box re-scaling (a11f61e)
• packages: Support migrating content in re-wrapped hboxes (da3ab6d)
• typesetters: Implement hbox building logic in the typesetter (0f5bc69)

Bug Fixes

• build: Distribute SVG and FTL source files in packages (7cef0ea)
• classes: Avoid justification issues with relative parindent (3ffd272)
• classes: Make sure un-numbered chapters make it in the ToC (e5af292)
• classes: Parse bare number and percentage units in docbook images (8b965b9)
• classes: Setting current.hangIndent is a measurement (e213d6e)
• cli: Return success if --help explicitly requested (#1737) (35a229d)
• core,typesetter: Discretionary nodes are incorrectly handled (dd7d05c)
• core: Ensure restoring settings top-level state does not error (fce8447)
• outputters: Update Cairo/Podofo hbox debug API to match libtexpdf (#1703) (607dcf7)
• packages: Correct image aspect preservation logic (6ace5b1)
• packages: Fix output of debug breaks in infonode package (#1725) (c8a1467)
• packages: Make sure pullquotes start in block mode (#1774) (00151bc)
• packages: Strip content position in ToC entries (#1739) (23345ea)
• packages: Text conversion in bookmarks has spacing issues (7ef2bb4)
• typesetter: Account for discretionary dimensions in hbox building (91cb950)
• typesetter: Avoid initializing new line during hbox creation (ae455a1)
• typesetter: New typesetter instances shall not reset settings (16d8a6a)
• typesetter: Skip lines containing only discardables without ignoring next lines (9c3dc65)
• typesetter: Top glues shall be skipped when streching/shrinking a page (8818a24)
• typsetter: Hack around scoping issues for parindent setting (fc85298)
• utilities: Enforce stricter type casts (SU.cast, SU.boolean) (a325eb7)

0.14.8 (2023-01-26)

Features

• build: Pass build time configuration into Lua environment (c5d8789)
• core: Add variations support to font command (a37e7bc)
• shapers: Instantiate variable fonts (d50881f)
• shapers: Support named instances with FontConfig (29119b9)
• shapers: Support named instances with macfonts (39a3242)

Bug Fixes

• build: Package license file for vendored lunamark fork (#1686) (13df3c1)
• classes: Coerce option values to booleans (#1696) (8368cb4)
• packages: Absolutize parskip heights on use (1ac793f)
• packages: Pass style & weight values to the math font loader (c92712f)
• packages: Quote option values in documentation when necessary (41e47bb)
• tooling: Use luaEnv properly (#1679) (a34e1c1)

0.14.7 (2022-12-30)

Features

• build: Allow easy skip of font checks with FCMATCH=true (5c0cef6)

Bug Fixes

• build: Only check tooling to build manual if really needed (e166e00)
• inputters: Rework SIL input to handle both junk outside of document tag and fragments (4c51c55)
• outputters: Patch up error message when failing to load font (#1671) (771d87f)
• shaper: Correct font-variants using opsz axis (#1666) (a929583)
• shaper: Respect variations when shaping (#1265) (#1662) (f50ae77)
• tooling: Keep all Lua packages in same env for Nix (8fc8670)
• utilities: Tweak breadcrumbs to work under LuaJIT limitations (32f744c)

0.14.6 (2022-12-14)

Features

• build: Add ./configure --enable-developer to ease setup for SILE developers (e8a56ae)
• core: Add SU.collatedSort for language-dependent table sorting with collation (ea7446d)
• core: SU.formatNumber has more options and language support (ed0db29)
• packages: Add package loaded that can later be used to track package dependencies (d48633a)
• packages: Code block environment and raw handler for autodoc (7661330)

Bug Fixes

• classes: Apply page/framebreak in hmode but warn the user (809cbba)
• cli: Deduplicate Lua module loading paths when adding segments (e0f75b1)
• cli: Escape possible path character in replacement (0161f9a)
• cli: Make user system root not added to resource search path (4305850)
• debug: Correct filename in debug info after includes (#1652) (4990ecc)
• debug: Fix pagebuilder debug functions in absence of luastd (ab46bf7)
• debug: Fix typesetter:debugState() in absence of luastd (42f6b0b)
• inputters: Correct Lua inputter AST expectations to match others (6177b0b)
• inputters: Work around SIL parser returning tags as part of content (ef4efb7)
• languages: Replace custom EN/TR ordinals with ICU (82b6709)
• nodes: Ignore empty node properties when debugging breaks (f034e05)
• packages: Correct content position reporting in inputfilter (bb53d77)
• packages: Don't discard grid makup vboxes at top of new pages (22b899c)
• packages: Fix \cite{key} in bibtex package (#1655) (648bb5d)
• packages: Use casting to restore shaper state after fallbacks (351fc68)
• shapers: Apply tracking settings even in font-fallback shaper (55f0c9c)
• tooling: Exempt LuaJIT from external bit32 library requirement (#1654) (d094f1b)
• typesetter: Ensure being in horizontal mode after pushback (a82b604)
• utilities: Correct logic in AST debugging output, also protect (97c82f0)
• utilities: Protect debug functions so they can't crash SILE (319b96a)

0.14.5 (2022-11-19)

Bug Fixes

• inputters: Correct false positive detection of STDIN as Lua content (d54946b)
• inputters: Don't duplicate passthrough content in AST (07c8e87)
• inputters: Permit content outside of the document note, e.g. comments or blanks (#1596) (f1a508a)
• inputters: Relax SIL format sniffing to allow valid syntax (43fc4bc)
• languages: Remove superfluous line (848b91f)
• languages: Tidy up variable scope in languages/unicode.lua (78b453d), closes #699
• measurements: Allow redefinition of existing units (#1608) (8d81018)
• packages: Ensure a page switch does not break boustrophedon (#1615) (64abaf9)

0.14.4 (2022-11-05)

Features

• packages: Add boolean noleadingzeros option to counter formatter (e4f8133)
• packages: Add new command \set-multilevel-counter (11578a8)

Bug Fixes

• classes: Always break out of hmode before processing \chapter headings (0c44d8e)
• core: A typo in a variable prevents using -u with a class (b8f5c40), closes #1569
• languages: Make 'und' an exception to language name canonicalization (52e9b79)
• math: Fix insertion order of MathML children (738e9e6)
• packages: Account for depth when calculating rotation center (289dd2a)
• packages: Avoid forcing mirrored masters in twoside package (#1562) (8cdf6ed)
• packages: Combine \unichar'ed chars with same font only (91a8d40)
• packages: Correct rotation origin calculation back to pre v0.10.0 (3521936)
• packages: Don't inhibit page breaking after switching masters mid-page (6b20f73)
• packages: Make sure PDF initialized before rotate package directly calls it (449b2a6)
• packages: Rework simple and multilevel counters (1e6e91a)
• packages: Textcase package name typo preventing using methods from code (7f68766), closes #1568

Reverts

• Revert "docs(packages): Fixup unichar documentation, work around known bug (#1549)" (03d1b11), closes #1549

0.14.3 (2022-09-01)

Features

• languages: Handle hyphenation of inter-word apostrophes in Turkish (50ae936)
• packages: Add \open-spread function with more features that \open-double-page (c2ba579)
• packages: Add ability to select a page in PDF images (a477d94)
• packages: Allow for customized content on otherwise blank filler pages (5ae97bf)
• packages: Provide base directory to packages (#1529) (f9ae994)
• utilities: Return image resolution with libtexpdf backend (a9c11d3)

Bug Fixes

• cli: Actually apply cli provided class options (505919e)
• cli: Allow CLI option to override document specified class (5232ce8)
• languages: Make Turkish hyphenation less bad around intraword apostrophes (008d4c4)
• nodes: Correct calculating width of postbreak discretionaries (ea7912c)
• nodes: Work around discressionaries being output when not wanted (c7dc439)
• packages: Fix over-aggressive eject in \open-double-page (5620556)
• packages: Homogenize image width and height as measurements (b91cfbb), closes #1506
• packages: Make sure PDF initialized before PDF package does anything (#1550) (ebc3748)
• packages: Resolve src= relative to document for SVG images (b55fc98), closes #1532

Reverts

• Revert "chore(build): Avoid mktemp during build, breaks opensuse packaging (#1542)" (bca007f), closes #1542
• Revert "chore(cli): Output header before doing anything that might throw warnings" (58da8ad)

0.14.2 (2022-08-11)

Bug Fixes

• classes: Allow package option declarations to be reset (215e83a)
• classes: Bring back space after subsection numbering (70a3304)
• packages: Check for user supplied commands before setting noops (54b5071)

0.14.1 (2022-08-06)

Features

• inputters: Expand postamble functionality for parity with preambles (#1518) (eb09eb3)

Bug Fixes

• cli: Suppress deprecation message for internal shims (b339e27)
• cli: Swap order of new --uses and legacy --include (ef0087e)
• packages: Correct (and improve scope of) exported testcase functions (fd438e9)
• tooling: Make sure Git version detection only picks up semver tags (25d669a)

0.14.0 (2022-08-05)

⚠ BREAKING CHANGES

• packages: The primary use was probably internal to SILE, but if by chance you have bibtex databases with formatting commands in SIL markup format rather than just plain text content the markup will cease to function and will need to be converted to XML syntax instead.

  This enables the use of declarative markup in Fluent localizations.

• classes: Each SILE package now inherits some interfaces from a common base package. This model allows packages easier access to SILE internals while at the same time tracking what they do so it is easier to enable/disable them. The package knows which document class instance it is attached to, and the document class knows which packages are loaded at any given time. Legacy style packages will continue to work for the time being but will not be tracked in the same way.

• core: The role of document commands has always been tightly scoped to classes. For example the book class has a \footnote command while plain does not—unless you manually load the package and setup the frames. In spite of this obvious functional scope, registering commands has been a global operation that stored them in a global registry. In order to allow SILE to be used more programmatically as a library with potentially more than one document and class being processed at at once, these need to be moved out of the global scope. This will also facilitate things like being able unload packages and revert to previous functionality for anything they over-rood on load. For now the functionality is shimmed, but code using the SILE.registerCommand() function should switch to the method of the same name on the current class, i.e. class:registerCommand().

• core: Some internal files and APIs got renamed with more structured name spaces. In particular the inputter, shaper, and outputter libraries all have a common naming scheme now and sensible inheritance chains. No functionality was harmed, but if you are overriding undocumented internal Lua methods you might have to update your name spaces to match.

• cli: The -I / --include option was overloaded for more than one purpose and is now deprecated in favor of more specific replacements: -r / --require for loading code into SILE before input processing, -p / --preamble for processing content prior to a document and -P / --postamble for processing content after a document.

• packages: The original package manager POC that used Git to clone packages into the SILE installation directory has been deprecated. It will continue to function for a while, but all new 3rd party packages should use the LuaRocks based installation process. Whether or not they use luarocks as a package manager or LuaRocks.org as a distribution channel they should install themselves to any usable the system or user Lua library path under a top level "sile" namespace.

• classes: The shims allowing classes designed for SILE releases v0.12.x and prior have now been removed and documents using them will now throw errors when rendering. Only the refactored class system introduced in SILE v0.13.0 is supported going forward.

• deps: We previously deprecated all use of stdlib. This release stops providing it entirely. If you use it in your own projects you will now need to provide and require() it directly.

• build: The C modules compiled as shared libraries (.so files on Linux, .dll on Windows) are now installed to the project root shared directory instead of it's 'core' subdirectory. Distro packages that split the library into its own package will need to adjust this path. People installing from their distro packages or from source should be unaffected, but this will bring us one step closer to being able to install and use SILE as a library.

Features

• classes: Add \use command to help deconflate \script usage (eb298c3)
• classes: Track loaded packages per document class (32bd87b)
• cli: Add CLI argument -E for evaluating Lua code after input (5948aca)
• cli: Add usage hints and cleanup output of errors (cc58824)
• cli: Allow loading custom inputters from -r option (a212e83)
• cli: Allow passing options to any modules specified from --use (4cdcae7)
• cli: Change --require to --use to match declarative markup (2411328)
• core: Add ability to pass args to modules via \use and other commands that load modules (9e54bad)
• core: Add ability to pass args to modules via \use and other commands that load modules (e64ce0f)
• core: Add inline-escaping in SIL-language (f09b135)
• core: Support loading classes/packages installed with luarocks (232e72b)
• i18n: Add more Russian localizations (350cf14)
• i18n: Add support for as many languages as possible (da57577)
• i18n: Fallback to messages from 'und' language if no localized (9f47715)
• i18n: Parse XML style SILE commands in Fluent messages (989290b)
• inputters: Allow arbitrary root elements from XML input without a preamble (ad46a92)
• inputters: Allow CLI to mandate inputter used for master document (1b9009f)
• inputters: Promote Lua to first class input filetype, improve input type detection (3540943)
• languages: Add Norwegian localizations (76b8f84)
• languages: Add Norwegian Nynorsk hyphenation exceptions (520cd3f)
• languages: Handle 'nb' code for Norwegian Bokmål, linked to 'no' rules (373bd17)
• math: Add modulus operator support (429b162)
• math: Allow forcing the atom type of an operator (14d384c)
• math: Express lengths in “mu” (math units) (39c7efc)
• math: Macros no longer wrap their replacement into s (d1f24b3)
• math: Print resulting mbox tree to debug log (f2e7c33)
• math: Support relative units in spaces and add standard spaces (4f2bee2)
• packages: Add new method to export package functions to class (07a28a4)
• packages: Allow configuring target folio frame from options (74e3924)
• packages: Provide API for registering commands linked to packages (4875972)

Bug Fixes

• build: Update Flake to work with Nix >= 2.10 (effb0dc)
• classes: Reset default font direction if document direction changed (11bb0f9)
• cli: Avoid throwing extra error on error without message (0d530a5)
• core: Avoid error when outputting overflow warnings with specific measurements (49ef650), closes #945
• debug: Flatten content if necessary to process and debug location (c753bd2)
• debug: Re-implement option display in trace stacks lost with std (01d2379)
• inputs: Drop Lua path handling duplicated in core (8abb0f2)
• math: Fix caching of getMathMetrics (3332698)
• math: Fix debug logs in TeX-like parsing (a686f90)
• math: Fix spacing before integral operators (bc847b3)
• math: Fix tostring functions in mbox subclasses (7a7c6bc)
• math: Set math elements to inherit hbox node properties (0279556)
• math: Turn font name printing into debug log (068ec4b)
• outputter: Non-RGB colors shall work with the debug outputter (#1469) (e68dee3)
• packages: Correct URL formatting when backend is not libpdftex (fc4212d)
• packages: Ensure grid hook is ineffective when grid is off (b99482b), closes /github.com/sile-typesetter/sile/issues/1174#issuecomment-1173141699
• packages: Make \script command properly initialize packages (#1479) (9723d0d)
• packages: Parse height argument to \raise / \lower as measurement (#1506) (7196fda)
• packages: Stop legacy package manager from adding empty paths (cf9b9fa)
• packages: Stricter color parsing and improved color documentation (f7b919a)
• packages: The autodoc package could choke on some inputs (#1491) (c7db5d5)
• utilities: Correct traceback output for SILE.error() to show parent, not itself (16b8900)

Miscellaneous Chores

• build: Move C modules to same relative location in source directory as installed (55ad795)
• classes: Remove stdlib class shims (c4210da)
• cli: Deprecate CLI argument -I in favor of -r, -p, and -P (d63a484)
• deps: Stop providing Lua stdlib (8a8c0e9)
• packages: Deprecate legacy package manager (b72653c)

Code Refactoring

• core: Move inputters/shapers/outputters to isolated classes (14329ce)
• core: Move registerCommand() out of global to classes (bc527ea)
• packages: Process bibtex content as XML not SIL (a259b32)

0.13.3 (2022-07-15)

Features

• packages: Add minimal support for usual BibTeX types (bibtex) (292a2f2)

Bug Fixes

• build: Update Flake to work with Nix >= 2.10 (3d5a18c)
• core: Avoid duplicate paths blocking directory searches (7a7209f)
• core: Avoid error when outputting overflow warnings with specific measurements (cb51ed5), closes #945
• outputter: Non-RGB colors shall work with the debug outputter (#1469) (41fbdf4)
• packages: BibTeX types/tags are case-insensitive, etc (61c1fc6)
• packages: Make \script command properly initialize packages (9ded7e1)

0.13.2 (2022-06-29)

Features

• core: Add presets for some ANSI paper sizes and ArchE variants (0f26756)
• languages: Add full Esperanto language support (b740709)
• packages: Add 'lists' package (bullets and enumerations) (6af3c62)
• packages: Add more options for custom 'lists"' styling (3167410)
• packages: Handle font fallback when glyph named null returned on shape failure (09c0a86)
• packages: Pass through font-specific options to fallback fonts (fb29442)

Bug Fixes

• classes: Clarify the scopes of tate and jplain (db83e9e)
• classes: Fix circular reference in pecha class (4501ec0)
• classes: Fix diglot and triglot class instantiation (71af1a9)
• core: Make paper size parser case insensitive, e.g. 'a4' or 'A4' (af441c8)
• measurements: Move the zenkaku width (zw) unit into core (cfe5060)
• packages: Correct fall-back font processing (d3cc59b)
• packages: Correct package load path for colored dropcaps (41a0c17)
• packages: Fix coding errors in untested corners of bibtex package (804b1a5)
• packages: Fix loading TOC twice resetting pdf links (97797b8)
• shaper: Handle switching between color & fallback shapers in single document (04f2d5d)
• utilities: Raise Lua error instead of manually aborting if inside pcall() (6e70a17)

0.13.1 (2022-06-18)

Features

• build: Update libtexpdf to support new hardware platforms (da1182e)
• packages: Add hrulefill command to the "rules" package (ccd3371)
• packages: Add strikethrough command to the rules package (#1422) (f230a3a)
• packages: Use new strikethrough when rendering Panndoc's SILE writer (20d19eb)

Bug Fixes

• build: Make sure i18n/ dir is actually distributed (#1445) (61ed8e1)
• packages: Add more props to keep CJK from tipping over, per #1245 (381b9f1)
• packages: Leaders shall be an explicit (non-discardable) glue (631ba21)
• packages: The fullrule now extends over a full standalone line (8fe57c8)

0.13.0 (2022-06-09)

⚠ BREAKING CHANGES

• settings: All the functions under SILE.settings.*() should now be called using the instance notation SILE.settings:*(). Usage should be shimmed with a warning for now.

  Changing this in your code is relatively easy with a search and replace. As an example with a project in Git, you could use perl like this:

  funcs="pushState|popState|declare|reset|toplevelState|get|set|temporarily|wrap"
  git ls-files | xargs -n1 perl -i -pne "s#(SILE\.settings)\.($funcs)#\1:\2#g"

• typesetter: Making a new instance of the typesetter should now be done by calling SILE.defaultTypesetter() instead of copying the object. It has been changed from a std.object to a Penlight class. As such the correct initialization function is also now _init() instead of init(). A shim is in place to catch legacy usage, but this will be removed in the future.

• deps: All calls to the Lua default string library have been using a version monkey-patched by stdlib. This has created all sorts of issues including not being able to properly use some of Lua's default features and conflicts with out explicit meta methods. Also we're busy dropping dependency stdlib altogether.

  If you were relying on it for any of your string operations, replace string.func() with std.string.func(). For now std is being provided by SILE, but if you use it in your projects please add it as a direct dependency yourself since that will eventually be removed as well.

  By the way in case anything ever git bisects back to here, one way to test if your problem is related to this change or not (especially if you have downstream code that might have built on the assumption SILE's Lua strings were monkey patched) is to load it manually yourself:

  $ sile -e 'require("std.string").monkey_patch()' your_file.sil

• classes: This changes the way classes are represented as Lua objects and the mechanism used for inheritance. While shims will be in place to catch most cases that use old syntax it is not possible to grantee 100% API compatibility. If you have classes that do anything remotely fancy (i.e. not just copy/paste from SILE examples) they may or may not work at all; and even if they do they should be updated to explicitly use the new API.

Features

• classes: Add hook system for more versatile packages (9287721)
• languages: Add \ftl command to make adding fluent localizations easy (b331456)
• languages: Add fluent() command to output translations (ad87995)
• languages: Validate languages against CLDR database (f96a331)

Bug Fixes

• backends: Add Pango shaper when selecting Cairo backend (bbc2817)
• backends: Always output pdf on finish() even if no content (3af7a94)
• backends: Correct image sizing in Cairo and Podofo backends (f2785ad)
• core: Avoid throwing deprecation errors when just inspecting SILE's internals (b303059)
• core: Justify lines with ligatures (workaround) (cf2cb3a)
• core: Patch Penlight 1.9.0 compatibility issue (092fbd3)
• languages: Correct bogus usage of resource loading / error catching (fb1fd7f)
• packages: An hrule with depth shall not affect current baseline (c759892)
• packages: Don't destroy frames when defining masters, only when switching to one (b7de7ca)
• packages: Fix autodoc parsing, typeset string not series of bytes (14f6126)

Miscellaneous Chores

• deps: Drop std.string.monkey_patch() (e8b2bdf)

Code Refactoring

• classes: Convert class inheritance from stdlib to Penlight (f7dafe0)
• settings: Change settings object to be self referential (dd97d05)
• typesetter: Change typesetter instancing to Penlight model (a9400ad)

0.12.5 (2022-04-18)

Features

• packages: Align leaders vertically (#875) (8b5d418)

Bug Fixes

• build: Catch and complete unfinished library builds (91ff438)
• build: Use BSD compatible scripting in make selfcheck (319e0c5)
• build: Use POSIX compatible shell syntax in configure (55e64ab)
• deps: Correct include to work with current LuaRocks packages (#1357) (b584be5)
• languages: French punctuation spacing must honor current font options (724daf4)
• packages: Better TOC title extraction for PDF bookmark (#1029) (5a65701)
• packages: The dotfill must stretch as an hfill (#1343) (c94a4b5)

0.12.4 (2022-03-03)

Bug Fixes

• docker: Fix GHCR → Docker Hub copy used when releasing (e5d83d0)
• packages: Avoid infinite loop when re-enabling BiDi (b4d691b)

0.12.3 (2022-03-02)

Bug Fixes

• frames: Inherit class direction setting in new frames (35c8a25)
• packages: Make boxaround respect shrink/strech (rules package) (9d8f708)
• packages: Make underline respect shrink/strech (rules package) (a5d99f0)
• typesetter: Enable bidi for default typesetter on package load (6a8d7f4)

0.12.2 (2022-01-28)

Bug Fixes

• shaper: Fix line length calcs with negative width word spacing (685d12d), closes #579

0.12.1 (2022-01-12)

Features

• build: Accommodate SOURCE_DATE_EPOCH for reproducible builds (16c81a8)
• classes: Add \noop function for versatile SILE.call() use (2b04507)
• core: Add OpenType post (v1) table parser (a985aed)
• core: Implement Knuth's hangAfter and hangIndent (5417189)
• core: Implement paragraph duration hanging indent settings (18ee23b)
• core: Implement paragraph shaping (parshape) (c2c0235)
• packages: Add dropcaps package (cb9105a)
• packages: Add shift, raise, and size options to dropcaps (0a88948)
• packages: Implement color option for dropcaps (d042bcf)
• packages: Use font's post table to determine underline position (ae1b929)

Bug Fixes

• backends: Move Lua 5.1 macro so covers whole file (9b40772)
• classes: Reset state when calling running headers (ec0a7b8)
• classes: Unnumbered book sections shall not display a number in running headers (4afde42)
• Fixes name of accented math symbol, eliminates duplicate newStandardHspace assignment (4c38f1a), closes #1274
• languages: Correct hyphenation after apostrophe in French and Catalan (4c93891)
• languages: Correct synchronisation between indexes in French word breaking (94ca931)
• languages: Repair broken French hyphenation patterns (c25d9d7)
• packages: Add \pdf:metadata support for dates (1b87305)
• packages: Apply OpenType x and y offsets to color fonts (d66dc5f), closes #1147
• packages: Correct rebox to not output duplicate content (2802d9b)
• packages: Don't over-isolate functions run in Pandoc imports (#1254) (84507a5)
• utilities: Fix UTF-16 encode/decode utility functions (7180081), closes #1280
• utilities: Set language of roman numerals to Latin to avoid casing issues (#1253) (95c4e2c)

0.12.0 (2021-09-22)

⚠ BREAKING CHANGES

• packages: Previous to this release footnote and folio frames took their font settings from a new typesetter with default settings. With this release the settings are now derived from the typesetter in the default frame, hence inheriting font family, size, leading, and other settings. Values can still be set using the same functions, but relative values such as font sizes are based on a different base.

Features

• core: Add MATH variants table parser (b6c554e)
• core: Add OpenType MATH table parser (835da21)
• math: Add ‘debug’ option to math command (58cc9dc)
• math: Add “big operator” support (5b9a150)
• math: Add fixes to support less complete fonts (1c22af3)
• math: Add italic correction to superscript; correct subscript size (d81fdee)
• math: Add math.font.filename setting (522d70b)
• math: Add math.font.size setting (5077d1c)
• math: Add operator defaults (14bdf1a)
• math: Add parameter to draw debug boxes around math components (2458d18)
• math: Add parameters and support mathvariant param for mi tag (869dca8)
• math: Add plain text support (3a09e9d)
• math: Add subscript and superscript; add math constants (0489c04)
• math: Add support for “symbol macros”, expanding to strings (27658f5)
• math: Add support for fractions (6f4fc24)
• math: Add tags for some mathematical symbols (b9fd771)
• math: Add tex-like math parser (edceaf7)
• math: Allow vertical stacking of top-level ‘mrow’s (56b553c)
• math: Center display math neatly (8951378)
• math: Implement and use munder and mover (61eac7a)
• math: Implement generic bbox shaper (9c86aff)
• math: Output error if rending with non-math font (c79617b)
• math: Replace leading - with − in numbers (f8d490c)
• math: Support double-struck identifiers (29674bf)
• math: Support for simple macros (5b4ecf7)
• math: Support italic (c9b2884)
• math: Support more integral-like operators (90a6c44)
• math: Support of UTF-8 in texmath, support of mo, mi and mn in-grammar (959d1cc)
• math: Turn "-" (hyphen) into "−" (minus) in math (fbed523)
• packages: Add border style and color to hyperlinks (bb880be)
• packages: Add function to remove last added fallback font (acf987b)
• packages: Add linking support to toc entries (e589cb9)
• packages: Add toc depth option and hooks for showing section numbers (c48fcde)
• packages: Allow URLs to have many breakpoints (#1233) (b145605)
• packages: Warn if toc contents have changed (5b6eed8)
• tooling: Enable use as a Nix flake (8b503bb)

Bug Fixes

• classes: Don't increment counters on unnumbered book sections (6cfca4d)
• core: Correct --help output to reflect required values (da487ec)
• languages: Add test 704 for French punctuations, fix expected 621 and 702 results (8e9b056)
• languages: Correct Armenian support to use ISO 639 code ‘hy’ (ffafbe6)
• languages: Correct punctuation rules for French (95c2398)
• languages: Don't initialize Japanese unless actually called for (3aba931)
• languages: Shortcut ICU soft breaks in French (ed8734c)
• math: Fix underover error with sub wider than base but no sup (bc87393)
• packages: Don't replace shaper unless actually initializing color-fonts package (269ca59)
• packages: Fix deprecation warning command in package docs (a69d774)
• packages: Reset footnote and folio settings top level state (3795a4e)
• shaper: Fix memory leak in Harfbuzz library (#1243) (035dcc8)

0.11.1 (2021-09-03)

Bug Fixes

• build: Avoid implied line continuation in makefile (f2af48f)
• build: Require Git even building tarballs, used by package manager (aba8662)
• languages: Update deprecated syntax in language options (3fb1719)

0.11.0 (2021-09-01)

⚠ BREAKING CHANGES

• packages: Previous to this release any and all leading between paragraphs (as set with document.parskip) –even a 0 height skip– would result in the skip of one full empty grid space — as if parskip had been set to something approximating a full line height. This change corrects the calculation so if a 0 height skip is added and everything fits, the next line or paragraph will continue uninterrupted in the next grid slot. To get the previous layout behavior back, document.parskip must be explicitly set to be something larger than 0. Even a minimal 1pt skip will result in paragraph spacing that includes one full grid height left blank as before:

  \set[parameter=document.parskip,value=1lh]
  

• utilities: Previous return value for breadcrumbs:contains() was just an depth index with -1 indicating no match. This made sense when I wrote it, but coming back to it for a new project I expected a boolean return value. Returning two values seems like the best option, but given the function naming it seemed to make sense to return the boolean first, hence the API breakage.

Features

• actions: Use tagged images for faster CI job spin up (6a00388)
• build: Add configure flag --disable-dependency-checks (5caf413)
• docker: Build, tag, and push images to GHCR (3988339)
• measurements: Add ‘hm’ (himetric) unit (f4b6b62)
• measurements: Add ‘twip’ unit (cf9d5a7)
• packages: Map unnumbered class to legacy opts in Pandoc package (#1167) (2868da2)

Bug Fixes

• core: Avoid crash on warn by using correct function (b403ad9)
• packages: Avoid crash on warn by using correct function (5d05be1)
• packages: Avoid unnecessary skips to next grid space (6424369)
• packages: Correctly handle color fonts on TTB pages (9b35d6a), closes #1171

Code Refactoring

• utilities: Change breadcrumbs:contains() to return <bool, index> (a987394)

0.10.15 (2021-03-02)

Features

• fonts: Allow for code to be run when a font is first loaded (bdf05ab)
• packages: Add \font-feature command (e2cf008)
• packages: Add complex-spaces package (#1148) (b7451ae)

Bug Fixes

• cli: Re-enable access to repl, input argument not required (a6434ee)
• core: Allow builtin Lua bitwise operators on Lua 5.4 (5f0c2c7)
• docker: Switch to BuildKit and make Docker Hub cooperate (783b104)
• docker: Use patched glibc to work around outdated hosts (fa2532c)
• docker: Use patched glibc to work around outdated hosts (#1141) (bf74417)
• docker: Work around libtexpdf build having side effects (33510d9)
• packages: Add CharacterVariant to features (929eca2)
• utilities: Correct UTF-8/UTF-16 conversions (4863ed6)

Reverts

• Revert "chore(build): Remove obsolete macOS workarounds" (f5cf7c0)

0.10.14 (2021-02-03)

Features

• core: Make luautf8 library available in global scope (ab7e745)

Bug Fixes

• build: Run autoupdate to fix autoconf issues (ab8307b)
• core: Decode UTF-16BE strings in Windows platform name entries (e7662f8)
• debug: Use UTF8 safe substring function in trace stack (495a5bf)
• manual: Small error (d738b62)

0.10.13 (2020-11-30)

Features

• classes: Allow footnotes in plain class if package loaded (42c1ceb)
• classes: Run deferred package init() on late load (0224fe3)

Bug Fixes

• backends: Add complex shaping data to debug backend (a1a6509)
• backends: Don't crash if debug output precedes regular (19c21f2)
• build: Don't abuse libtool internals (for NetBSD packaging) (#1084) (048c8b5)
• classes: Define \strong weight=700, not 600 (#1097) (68abf91)
• packages: Add default options to simpletable (1f10c97)
• packages: Correct math operations on grid spacing (5286188)
• packages: Turn off complex flag for items in \latin-in-tate (b20690f)

0.10.12 (2020-10-10)

Bug Fixes

• backends: _drawString should take an offset (#1079) (594ae03), closes #1078
• packages: \verbatim:font can process text (#1076) (eb4fb1a)

0.10.11 (2020-09-25)

Features

• actions: Add configuration file to run as GitHub Action (ee2d509)
• backends: Modify setCursor() to handle relative movements (7caa9c8)
• classes: Make it possible to not use parent class framesets (99b9f50)
• cli: Add Lua interpreter info to --version (bf5210d)

Bug Fixes

• backends: Properly switch between normal and debug fonts (b53896e)
• classes: Identify triglot class as triglot not diglot (495654a)
• classes: Make declareFrames() workable by passing ids (27b6b4a)
• classes: Move class setup code into deferred class:init() (6f470d7)
• core: Patch Penlight 1.9.0 compatibility issue (1eb4290)
• packages: Allow Hanmen frame creation to use optional ID arg (7853d5a)
• packages: Fix hole drawing from svg in PDF (6521fd0)
• packages: Remove extra space in \code in url (b90cd37), closes #1056
• tooling: Expand variables so fonts are known dependencies of tests (88ac888)

Performance Improvements

• backends: Reuse variables instead of recalculating values (02cce40)

0.10.10 (2020-08-14)

Features

• build: Detect and use luajit first (601dfc4)
• build: Detect LuaJIT if explicitly configured to want it (c3e8089)
• classes: Add warning to \noindent if called after input (f29b9d9)
• packages: Allow scaling SVGs by width or height (44588b5)
• settings: Add a way to reset single setting to defaults (f318cdf)
• settings: Bring Lua settings.set to parity with \set (d73b08c)

Bug Fixes

• classes: Reset parindent's inside \center command (7b62f74)
• core: Always compare like-types so LuaJIT can run (c608090)
• core: Don't read zero-length name table entries (bcd9a9e), closes #1015
• examples: Properly center title in showoff document (55717fb)
• frames: Discard content (usually whitespace) inside \pagetemplate (3b7085b)
• frames: Draw frame debug lines exactly on frame lines (db92edc)
• languages: Stop Japanese resetting global chapter post macro (836f199)
• packages: Align pullquote ending mark with outside margin (8b808db)
• packages: Draw rules in the writing direction (18bca68)
• packages: Error if asked to add bogus dependencies (59e2b56)
• packages: Fix indentation of second paragraph in pullquotes (a8525e5)
• packages: List \include files in makedeps (bf670ab)
• packages: Orient rules for all 8 directions (bc4a33a)
• packages: Place PDF bookmarks at top of current line (ce30d83)
• utilities: Use deterministic sort for sorted pairs (99e2b59)

0.10.9 (2020-07-24)

Features

• build: Install manual to $(pdfdir) if configure --with-manual (ee33ff7)
• core: Allow adding --debug flag multiple times (9ac2838)

Bug Fixes

• build: Correct typo in dependencies for building docs (ad548a5)
• build: Ship blank lua_modules install list in source packages (7939970)
• build: Touch Makefile.in to avoid automake errors (e7f4627)
• build: Work around src/libtexpdf subdirs using side-effects (26d6769)
• core: Iterate on sequential data with ipairs() or SU.sortedpairs() (9db0a28)
• debug: Fix math in hbox debugging (6c0029d)
• packages: Combine unichar output with existing unshaped node (712bc92)
• packages: Use sortedpairs to avoid non-determinism (a28ef06)
• utilities: Add sorted pairs function (5aad397)

0.10.8 (2020-07-18)

Features

• build: Output hints about how to compile from repo snapshots (596cd9f)

Bug Fixes

• build: Avoid possible race condition on first build (b937c95)
• build: Use BSD compatible find syntax (c96683e)
• build: Use BSD compatible touch syntax (25eb6fd)
• docker: Make sure Lua modules installation works on the first pass (f0c3e26)

Performance Improvements

• build: Save a ./configure cycle by bootstrapping the version (2997d05)

Reverts

• Revert "chore(build): Save a double-configure on first download/build" (ef56de4)

0.10.7 (2020-07-16)

Bug Fixes

• build: Merge Github Actions release step with build (b2d77ab)

0.10.6 (2020-07-16)

Features

• build: Add --with-install-examples option to configure & make (245e8a6)
• build: Add --with-install-manual option to configure & make (3415b3a)
• inputs: Allow (escaped) quote mark in quoted command options (2e9d1b5)

Bug Fixes

• build: Always distribute Lua_modules even if build uses system (e75ece7)
• build: Correct typo in test dependencies causing no font downloads (ad49a85)
• build: Correct typo in test dependencies causing no font downloads (09a653a)
• build: Explicitly filter packaging *.lua and *.sil to avoid cruft (a89773d)
• build: Fix conflations between Lua source types (163959f)
• build: Handle any combo of --with-manual and --with-examples flags (145a86e)
• build: Mark make busted as PHONY so it always runs (23b81ac)
• build: Move dynamically generated file lists out of automake (f626867)
• classes: Use Hack as default monospace font (0e61067)
• core: Handle empty content in macros using \process (2dc6d66)
• frames: Reset font to Gentium to output frame IDs (102dd09), closes #915
• inputs: Disallow 'begin' and 'end' as environment names (b13b99a)
• inputs: Only allow reserved characters as 1-char commands (2a4c095)
• packages: Assure PDF initialization first-output can be rotated (0613ab1)
• packages: Cast measurements to numbers before use in PDF functions (5f2d2e3)
• packages: Fix measurement-to-number issue in SVG (168dffc)
• packages: Improve multi-paragraph pullquotes (7d3f355), closes #865
• packages: Ruby class should not affect document language (#926) (8034aa1)
• packages: Tate should not affect document language (#932) (193fded)
• tooling: Allow make dist on systems without native lua packages (5758085)

Reverts

• Revert "ci(travis): Bump Luarocks install to 3.3.1" (97fb476)

0.10.5 (2020-07-03)

Features

• build: Add make check fast self-check target, fixes #835 (89cefef)
• shaper: Add tracking setting and implement for harfbuzz (9e1dec7)

Bug Fixes

• build: Check for luarocks if not configured --with-system-luarocks (e8770ce)
• core: Account for possibility that there are no working fallbacks (391f44e)
• core: Gracefully do nothing when SILE.process() passed nothing (1085049)
• core: Revamp macro system to fix #535 (47a0af8)
• frames: Avoid possible infinite loop when looking for a frame (157dfc8)
• frames: Rely on __tostring() meta method, toString() is no more (77b8956)
• nodes: Fix calling non-existent nodefactory function (#864) (9580a15)
• packages: Center dotfill in the event only one dot fits (95181d2)
• packages: Don't let dotfill content be stretchy (079ff97)

0.10.4 (2020-04-21)

Bug Fixes

• build: Fix version detection in sparse git checkouts (#803) (#818) (dcd0023)
• core: Return correct length from icu.bidi_runs with surrogate pairs (000515f), closes #839
• docker: Work around fresh GNU coreutils bombing Docker Hub (#851) (ed49fbb)
• languages: Localize TOC title functions (#849) (1ab4345)
• packages: Update PDF package to use correct measurement types (79e24ca)
• packages: Update Tate package to use correct measurement types (180024f)
• tooling: Add missing lua-cosmo dependency for Markdown class (#822) (ea81598)
• typesetter: Make typesetter.breakwidth a measurement (721280d)

0.10.3 (2020-02-04)

Bug Fixes

• tooling: Make sure Lua modules get included in source tarball (ef5bb53)
• tooling: Unblock standard-version release number bumping (7b18cd5), closes #816

0.10.2 (2020-02-03)

Bug Fixes

• build: Don't include build *.so modules in dist (4eb2a73)
• build: Fix version detection in sparse git checkouts (#803) (e46091f)
• build: Include modules for all supported Lua versions in dist (a4e9f03)
• build: Look for Lua 5.3 executables with the version in their name (3952bf8)

0.10.1 (2020-01-24)

Bug Fixes

• backends: Implement cursor tracking to roughly simulate glues (26afcec)
• core: Actually deprecate old nodefactory instantiators (774f0fc)
• measurements: Actually deprecate old constructors (bfdb1b8)
• nodes: Fix pushHbox() regression, recognize zerohoxes (#789) (dae51f1)

New Features

• backends: Approximate space and break in text output to PDF (9577ae4)
• docker: Add dockerfile and setup to build an image (4424d44)
• docker: Add method to inject fonts into Docker container (104124a)

0.10.0 (2020-01-13)

⚠ BREAKING CHANGES

• This removes the auto-guessing file extension mechanism that allowed *.sil files to be loaded without specifying the full file name with extensions. A command like sile test will no longer find and build sile.sil, you must run sile test.sil. The mechanism that was doing this was a hack than only worked in some scenarios anyway, and dropping it instead of trying to cover all the edge cases will make it that much easier to use and document. Importantly it avoids edge cases where both *.xml, *.sil, and/or *.lua files all have the same name and the loader really has so idea which one you mean.

  Note that packages may still be loaded with no file extension, this does not affect the require() mechanism that looks for *.lua and various other incantations by default.

Bug Fixes

• build: Bludgeon autoconftools to respect our will (b256cb9)

• build: Correct Makefile syntax oopses (a831a4f)

• build: Deautoconfiscate, undoing race condition setup by ee1834a (f09bb08)

• build: Don't let autoconf warn when hack run too early (56a0714)

• build: Use POSIX compatible shell arguments (#712) (c0542ca)

• build: Use version detection that works w/out git (f94e9d8)

• classes: Don't try to load layout modules until init() (b58c861)

• core: Add Lua 5.1 compatibility hack to makedeps code (067d410)

• core: Close makedeps before final output so timestamp is earlier (f1b5df5)

• core: Correct Lua bloopers using standard syntax (af7d101)

• core: Don't bother require() by mucking around in custom resolver (e0e2548)

• core: Don't dump debug information to stdout (4e96548)

• core: Don't instantiate objects in class definitions (4cdb663)

• core: Don't let units deal in length objects more than necessary (6dff532)

• core: Fix bugs in path handling (d16af88)

• core: Guess original parent of split frames post page break (#765) (791c054)

• core: Hack problem with side effects in vglues (7c908c9)

• core: Let require() do the work of finding files (e82c0e9)

• core: Restructure Lua path order to only prefix default (3f2c553)

• core: Show correct declaration file for doTexlike \defines (f96ef83)

• core: Smash bug in frameparser, handle whitespace consistently (1e07e1c)

• core: Uncover and fix side effect using new math operators (09a2860)

• core: Use local variable scope (142caad)

• counters: Restore variable passing to refactored counter code (18d5b00)

• debug: Correct usage of SILE debug functions (3889f35)

• debug: Correctly check location before printing "after" part (a527ea8)

• debug: Handle case where content is function (97ae8d4)

• debug: Output debug messages on STDERR (c2e4ad5)

• debug: Properly place stack push/pop so nested includes work (8d0318f)

• languages: Calmly note Lua comments are not hyphenation patterns (e826063)

• languages: Catch a bug in Turkish number expressions (003a93b)

• languages: Fix bogus Lua syntax in Finish hyphenation code (dd44c51)

• languages: Fix bogus Lua syntax in Greek hyphenation code (21ac9e7)

• languages: Fix punctuation in French by escaping character set (a8c8dd1)

• languages: Fixes and tests for letterspacing (c8edfd1)

• languages: Make sure hyphenator doesn't ever think language is nil (81d33d3)

• languages: Place Danish hyphenation rules under Danish code (#629) (e05976c)

• package: Fix boustrophedon bugs unearthed writing documentation (a382b93)

• package: Replace obsolete Linux Libertine with Libertinus Serif (8f3b9c4)

• packages: Fix typos and bad namespacing (922cddf)

• packages: Refactor grid with new measurements (c9a862a)

• packages: Unbreak marks, 0 ≠ o as in previous refactor (5c4c671)

• repl: Enable UTF-8 input by default (e203d4d)

• repl: Use Luarocks to get linenoise REPL plugin (e6155c3)

• shaper: Prevent rare crash when font is specified by filename (235f931), closes #604

• shaper: Use non-reserved word in REPL function variable (73f631b)

• tests: Drop expected files that are clearly not what we expect yet (e7c547a)

• tests: Ignore LuaRocks when reporting on coverage (3619a8c)

• tests: Mimic SILE's internal Lua path in Busted test runs (9e67e7d)

• tests: Patch up Lua Busted testing framework (527ca4e)

• tests: Rename source file based on content type (3886ceb)

• tooling: Allow tests to run from xml or sil sources (5e6ab5c)

• tooling: Bundle rockspec file in source tarballs (cc6fb85)

• tooling: Configure luarocks on Mac (assume homebrew installed libs) (ba1d4d0)

• tooling: Fix lists of expected vs. actual files (10506ed)

• tooling: Fix Lua coverage tests (ea6351c)

• tooling: Have make make sure LuaRocks are actually current (680d145)

• tooling: Help autoconf tools find luajit (da957dd)

• tooling: Remove bogus test expectation file (4f79fe1)

• tooling: Update Cassowary dependency to work on newer Penlight (8b79ce9)

• tooling: Work around bugs in standard-version (96aa81c)

• travis: Don't die if links exist as happens when caches restored (d47a12a)

• typesetter: Always handle margins as glues, never as nulls (90d0550)

• typesetter: Don't loose original node dimensions during pagebuild (8c38979)

• typesetter: Fix height of insertions as used in pagebuilder (1ec6102)

• Add missing local to content variables in inputs-common (8f8d4f0)

• refactor!(core): Use Lua's built in resolver instead of our monkey work (f89bae4)

Optimizations

• core: Add in-place arithmetic methods to lengths and measures (caf2298)
• core: Devise faster node type checking (a322d07)
• core: Disable debug mode in lua.stdlib (6457a69)
• core: Don't waste time instantiating unused intermediaries (6f3dba1)
• core: Improve node shape caching (deea10f)
• core: Reduce length instantiations during break checks (b24da47)
• core: Speed up comparisons with fewer instantiations (7f47354)
• core: Use faster operations when appending nodes (9d28568)
• core: Use in-place arithmetic methods where sensible (2f87641)
• utilities: Allow passing lambda functions to SU.debug (c8610df)

New Features

• backends: Add dummy output backend for dry runs (ffd9ce3)
• classes: Add option to disable toc entry for book section (#613) (2eedfa9)
• core: Add CLI flag to force a specific font manager (ebd8bb0)
• core: Add command stack system for better error output (edafe1e)
• core: Add directory of master file as preeminent search path (9f0aff4)
• core: Generalize determining if tag is a passthrough one or not (f98471a)
• core: Track all files used and output make dependencies (73e5e2d)
• languages: Add English N'th number format (227ff1a)
• languages: Add string and ordinal outputs to formatCounter() (178218d)
• languages: Add Turkish N'th number format (16ea29f)
• languages: Add Turkish number-to-string functions (aad9ed9)
• packages: Add Pandoc helper package for converted documents (96090a5)
• packages: Allow stretch and shrink heights on insertion vboxes (adfd8de)
• settings: Allow settings to have boolean values (07a3aba)
• tooling: Setup make rules for comparing worktrees (b8ff48a)
• utilities: Add English number to string formatter (82aada2)
• utilities: Add type casting option to SU.required() (56c6506)

0.9.5.1 (2019-01-13)

No code changes, but the previous release was broken due to extraneous files in the tarball. Oh, the embarrassment.

0.9.5 (2019-01-07)

• Experimental package manager.

• The "smart" bare percent unit (where SILE guessed whether you meant height or width) has now moved from deprecated to error. Replace with %pw etc.

• Language support: variable spaces in Amharic (and other languages if enabled with the shaper.variablespaces setting), improvements to Japanese Ruby processing, Uyghur hyphenation revisited and improved, Armenian hyphenation added.

• You can now set the stretch and shrink values of a space using the shaper.spaceenlargementfactor, shaper.spaceshrinkfactor and shaper.spacestretchfactor settings.

• You can use - as input filename to pipe in from standard input, and - as output filename to pipe generated PDF to standard output.

• New letter class.

• New commands: \neverindent and \cr

• New units: ps (parskip) and bs (baselineskip)

• Links generated via the url package are hyperlinked in the PDF.

• You can now style folios (page numbers) by overriding the \foliostyle macro.

• Languages may define their own counting functions by providing a counter function; you may also lean on ICU's number formatting to format numbers.

• ICU is now required for correct Unicode processing.

• Experimental support for SVG graphics and fonts. (see tests/simplesvg.sil)

• Users may select the Harfbuzz subshaping system used (coretext, graphite, fallback etc.) by setting the harfbuzz.subshapers setting.

• Fix typos in documentation (Thanks to Sean Leather, David Rowe).

Most other changes in this release are internal and non-user-visible, including:

• Introduced vertical kern nodes.

• Various fixes to pushback (end of page) logic, bidi implementation. ICU is now used for bidi.

• Updated various examples to work with current internals.

• Many and varied internal fixes and speedups, and improved coding style.

0.9.4 (2016-08-31)

Nearly 600 changes, including:

• New packages include: letter spacing, multiple line spacing methods, Japanese Ruby, font specimen generator, crop marks, font fallback, set PDF background color.

• Fixed handling of font weight and style.

• Hyphenation: Correct hyphenation of Indic scripts, words with non-alphabetic characters in them, and allow setting hyphen character and defining hyphenation exceptions.

• Relative dimensions ("1.2em") are converted to absolute dimensions at point of use, not point of declaration. So you can set linespacing to 1.2em, change font size, and it'll still work.

• Default paper size to A4.

• Changes to semantics of percent-of-page and percent-of-frame length specifications. (width=50% etc.)

• Much improved handling of footnotes, especially in multicolumn layouts.

• Support for: the libthai line breaking library, color fonts, querying the system font library on OS X, multiple Amharic justification conventions.

• Added explicit kern nodes.

• Changed to using Harfbuzz for the text processing pipeline; much faster, and much more accurate text shaping.

• Rewritten and more accurate bidirectional handling.

• Removed dependency on FreeType; use Harfbuzz for font metrics.

• Fixed the definition of an em. (It's not the width of a letter "m".)

and much more besides.

0.9.3 (2015-10-09)

• Support for typesetting Japanese according to the JIS X 4051 standard, both horizontally and vertically.

• Unicode line-breaking support; scripts now line-break correctly even if they don't have specific language support. Optionally uses the ICU library if installed.

• Font designers rejoice: you can now say \font[filename=...] to use uninstalled fonts.

• Pango/Cairo support is now officially deprecated. Stop using it!

• Improvements to USX Bible processing.

• Experimental support for Structured PDF generation.

• Support for Opentype kerning.

• Support for custom frame direction (e.g. "TTB-LTR" for Mongolian).

• Support for many-way parallel texts across pages or spreads.

• Line breaking support for Myanmar, Javanese and Uyghur.

• Support for boustrophedon Greek. No, really.

• Various fixes to bidirectionality, discretionary hyphens, insertions, footnotes, grid typesetting, alignment.

• Under-the-hood advancements for Harfbuzz.

0.9.2 (2015-06-02)

• New packages for: rotated content, accessing OpenType features and ligatures, alternative input of Unicode characters, PDF bookmarks and links, input transformation.

• Packages to help with typesetting chord sheets and bibles.

• Experimental packages for bibliography management, typesetting URLs, Japanese vertical typesetting, balanced columns, and best-fit page breaking.

• Support for quoted strings in the parameters to TeX-like commands.

• Language support: Many fixes to Arabic; support for Tibetan and Kannada; hyphenation for many languages; much improved bidirectional typesetting.

• Warn when frames are overfull.

• Support for older versions of autotools, for Lua 5.3 and mingw32 environments.

• Continuous integration and testing framework

• Fixes to long-standing bugs in grid support, centering, ligatures, insertions and page breaking.

• Better font handling and substitution.

• Valid PDFs will still be generated on error/interruption.

• Improved error handling and error messages.

• Many miscellaneous bug fixes.

0.9.1 (2014-10-30)

• The main change in this release is a new shaper based on Harfbuzz and a new PDF creation engine. This has greatly improved the output quality on Linux, as well as bringing support for multilingual typesetting and allowing future support of interesting PDF features. (It's also much faster.)

• The new PDF library also allows images to be embedded in many different formats, rather than just PNG.

• Documents can now be written in right-to-left languages such as Hebrew or Arabic, and it's possible to mix left-to-right and right-to-left text arbitrarily. (Using the Unicode Bidirectional Algorithm.)

• Initial support for languages such as Japanese which have different word/line breaking rules.

• Frames can be grouped into a set called a "master", and masters can be used to set the frame layout of a given page.

• Hopefully a much easier installation process, by bundling some of the required Lua modules and using the standard autoconf ./configure; make strategy.

• Support for Lua 5.2.

0.9.0 (2014-08-29)