caustic.parser 2.2.3

Caustic's parsing framework

Caustic's Parser -- uses grammar specification to compile Caustic source code into a CST (Caustic AST)

Uses ParGlare for parsing, meant to work with CausticGrammar to create a CST (Caustic AST)

CLI usage

See cap --help

Example module usage

import sys
import parglare
from pathlib import Path

from caustic.parser import CausticParser
from caustic.parser.error import format_exc

# CausticParser.from_file() loads the grammar using ParGlare,
# then invokes CausticParser.from_grammar(), which creates a ParGlare
# parser instance and uses that to finally create the parser
p = CausticParser.from_file(Path('<your-grammar-file>'))

try:
    print(p.parse(input()))
except parglare.ParseError as e:
    # custom error formatting (optional)
    print(format_exc(e), file=sys.stderr)