module TermBuf::CapabilityResolver

Overview

Settles what the terminal can do, in four stages, each overriding the one before it:

1. a baseline of nothing at all;
2. what the environment suggests;
3. what the terminal says when asked directly;
4. whatever TERMBUF_CAPS insists on.

Probing is skipped when there is nothing to probe — output that is not a terminal, or a caller that did not supply one. That is not an error: the environment heuristics stand on their own, and a program writing to a pipe still needs a capability set.

Extended Modules

• TermBuf::CapabilityResolver

Defined in:

Instance Method Summary

• #resolve(env : Hash(String, String) = ENV.to_h, input : IO | Nil = nil, output : IO | Nil = nil, timeout : Time::Span = Prober::DEFAULT_TIMEOUT) : Result

  Runs the four stages.

Instance Method Detail