ccharts

Unicode + ANSI candlestick, line, pie/donut, histogram, sparkline, bar,
stacked bar, heatmap and box-plot charts rendered to strings, from a
single-header C library (ccharts). This is the Lua binding: a C module
that compiles the vendored C ABI at install time. The version tracks the
library's CCHARTS_VERSION (3.0.0).