plcc-rep

REPL — read, eval, print loop for a PLCC spec. Scans and parses source input, then evaluates it using the generated semantics.

Usage

plcc-rep [-v ...] [options] [SOURCE ...]

Arguments and Options

Argument/Option	Description
`SOURCE`	Source files to evaluate. Omit (or pass `-`) to enter interactive mode.
`-s PATH`, `--spec=PATH`	Spec file to build from. Remembered across invocations in the same directory. Defaults to `spec.plcc`.
`-b`, `--banner`	Print the plcc-ng version, spec path, and target language to stderr.
`-h`, `--help`	Show usage and exit.
`-v`	Increase verbosity (repeat for more: `-v`, `-vv`, `-vvv`).
`--verbose-format=FMT`	Verbosity output format: `text` (default) or `json`.

Examples

# Evaluate files and exit
plcc-rep -s subtract.plcc samples/

# Enter interactive mode
plcc-rep -s subtract.plcc

Interactive mode

When no source files are given and stdin is a terminal, plcc-rep reads input at a >>> prompt. After each line, complete sentences are evaluated and their results printed. Continuation prompts (...) appear when the input so far is a valid prefix.

Press ^D at the >>> prompt (empty buffer) to exit.
Press ^D at the ... prompt to force-submit the buffered input and return to >>>.