resolve_separator: Resolve the CI or range separator

In summata: Publication-Ready Summary Tables and Forest Plots

Resolve the CI or range separator

Description

Determines the appropriate separator character between two numeric bounds (e.g., CI lower-upper, range min-max) based on whether either bound is negative and the current locale's decimal mark. This avoids ambiguous output like "(-5--3)" or "(1,2-3,4)" with European commas.

Usage

resolve_separator(lower, upper, marks)

Arguments

lower	Numeric value of the lower bound (or minimum).
upper	Numeric value of the upper bound (or maximum).
marks	List with big.mark and decimal.mark as returned by resolve_number_marks.

Details

Rules:

1. If either bound is negative, use " to " to avoid double-hyphen ambiguity (e.g., "-5 to -3" not "-5--3").

2. If the decimal mark is a comma (EU locale), use "\u2013" (en-dash) to avoid confusion between decimal commas and separating commas (e.g., "1,2\u20133,4" not "1,2-3,4").

3. Otherwise, use a plain hyphen "-".

Value

Character string separator.

summata documentation built on May 7, 2026, 5:07 p.m.