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pikchr 1.1.2

Bug fixes

• Updated the bundled ‘pikchr’ C source to upstream check-in a7f1c35bc0 (2026-04-03). It fixes nested macro calls whose pass-through arguments ($1, $2, …) are split across lines with a trailing backslash, which previously failed with a syntax error (upstream forum post c1d9a4c125a6a5bf). This is the only code change upstream since the previous import (2f03080029, 2025-03-21); the data-pikchr-date attribute of generated SVGs is now 20260403102956.

pikchr 1.1.1

Bug fixes

• Fixed a memory leak in the C interface (pikchr_c): the SVG buffer returned by pikchr() was never freed, leaking on every diagram render.
• Guarded the C interface against a possible NULL return from pikchr() that could crash the R session.
• Fixed the height argument default in pikchr(), which never fell back to the SVG viewBox height and produced an empty height: CSS rule.
• Aligned the documented argument defaults of pikchr() (width, height, fontSize, fontFamily, align) with the actual function defaults.

Other

• Regenerated the package logo with a geometrically regular hexagon (the previous SVG was horizontally squished) and fixed an invalid <def> element (now <defs>) in the logo source.

pikchr 1.1.0

New features

• Quarto and RMarkdown improvements: The knitr engine now supports fig.cap (figure captions with <figure>/<figcaption> in HTML), fig.alt (accessibility alt text via aria-label), and fig.align as standard knitr options.
• Non-HTML output support: Automatic PNG conversion for all non-HTML formats including DOCX, EPUB, and Typst (previously only LaTeX/PDF was supported).
• DPI-aware PNG conversion: The dpi chunk option (default 150) controls PNG resolution for non-HTML outputs.
• Error detection: Pikchr compilation errors now produce informative warnings with the error message, instead of silently embedding invalid markup.
• Quarto cross-referencing: Chunks with labels starting with fig- receive an HTML id attribute for Quarto cross-reference compatibility.

Improvements

• Replaced message(), warning(), and stop() with cli::cli_inform(), cli::cli_warn(), and cli::cli_abort() for consistent and user-friendly messaging.
• Removed dplyr, purrr, and rlang from Imports, replaced with base R operations for a lighter dependency footprint.
• Replaced tidyverse in Suggests with specific packages (rmarkdown).
• Updated authors list.
• Removed compiled objects (.o, .so) from src/.
• Cleaned up commented-out code and removed duplicate engine registration.

pikchr 1.0.3

Bug fix

• Corrected automatic detection of LaTeX output: when knitting to PDF, the SVG diagram is now converted to a PNG image using the rsvg package, ensuring compatibility with LaTeX-based outputs.

pikchr 1.0.2

Bug fix

• Adjusted SVG attribute handling to prevent false “NAs introduced by coercion” warnings caused by unexpected coercion of non-numeric attributes.

pikchr 1.0.1

• updated pikchr source code to version 1.0

pikchr 1.0.0

• Added a NEWS.md file to track changes to the package.
• Embedded Google Fonts in SVG Files: Added functionality to embed Google Fonts directly into the generated SVG files, improving the portability and visual consistency of diagrams.
• Improved Processing in RMarkdown: Enhanced integration with RMarkdown for smoother and more efficient rendering of diagrams within documents.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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