@bablr/cli v0.6.3
@bablr/cli
This is the CLI runner for BABLR. If you have a BABLR grammar for a computer language, this tool allows you to use it to do streaming parsing. Parse results are presented in CSTML.
Usage
This package has no built-in language support, but rather expects you to supply a valid import specifier referring to a BABLR language. This likely means that you will likely need to start by installing both the parser and the language you wish to use.
Usage: bablr [options]
Options:
-l, --language [URL] The URL of the top BABLR language
-p, --production [type] The name of the top production type
-f, --format Pretty-format CSTML output (default: true)
-F, --no-format
-v, --verbose Prints debugging information to stderr
-c, --color [WHEN] When to use ANSI escape colors
WHEN: "auto" | "always" | "never" (default: "auto")
-e, --embedded Requires quoted input but enables gap parsing
-h, --help display help for command
Example
bablr -l @bablr/language-en-json -p Expression -f << 'EOF'
[
1,
true,
"3"
]
EOF
Running the above command produces the following output. Note that this is a stream parse so lines of output will appear one by one as fast as the input can be read and parsed.
<!0:cstml bablr-language='https://github.com/bablr-lang/language-en-json'>
<>
.:
<Array>
openToken: <*Punctuator '[' balanced=']' />
<#*Space:Space '\n ' />
separators[]: []
elements[]: []
elements[]:
<Number span='Number'>
wholePart:
<Integer>
signToken: null
value: <*UnsignedInteger '1' />
</>
fractionalSeparatorToken: null
fractionalPart: null
exponentSeparatorToken: null
exponentPart: null
</>
separators[]: <*Punctuator ',' />
<#*Space:Space '\n ' />
elements[]:
<Boolean>
sigilToken: <*Keyword 'true' />
</>
separators[]: <*Punctuator ',' />
<#*Space:Space '\n ' />
elements[]:
<String>
openToken: <*Punctuator '"' balanced='"' balancedSpan='String' />
content: <*StringContent '3' />
closeToken: <*Punctuator '"' balancer />
<#*Space:Space '\n' />
</>
closeToken: <*Punctuator ']' balancer />
</>
</>
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