encoding-full

All codes

• Type: error
• Kind: limit (a Limits value or another resource bound was hit)

What happened

A standard 14 font had no free one-byte code left for another glyph in this document.

Why

A standard 14 font is a simple font: text is written one byte per character, so one font resource addresses at most 256 glyphs (ISO 32000-2 §9.6.5). lamina writes the Latin fonts in WinAnsiEncoding, and gives each glyph of the standard Latin character set outside it (Lslash, Scedilla, minus, …) one of the 37 codes WinAnsiEncoding leaves undefined, through /Differences. A document that draws more such glyphs with one font than there are free codes runs out. Assignment is all or nothing: when one encode call needs more new codes than are free, none are assigned and nothing of the text is recorded.

How to fix

Embed a font (Font::from_bytes), which addresses every glyph through a Type 0 font, or split the text across two registrations of the standard font (each is its own font resource with its own codes).

Example

Drawing more than 37 different non-WinAnsi Latin glyphs (Ā, ă, Ą, …) with Standard14::Helvetica in one document: the 38th has no free code in the font’s /Differences, so the call fails with encoding-full.

Data fields

• font: the standard font’s PostScript name (fixed text: one of the fourteen).
• limit: how many codes /Differences can assign for this font.
• free: how many of them were still free; the text needed more, so none were assigned.