Syntax

Syntax that reads or writes one element without modification

Parse or print a specific character 'value' and result in unit

Parse or print a specific character 'value' or fail with 'failure', result in unit

Syntax that parses/prints a single character that matches one of 'chars'

Syntax that parses/prints a single character that matches one of the characters in 'chars'

Syntax that parses/prints a single character that does not match any of 'chars'

Syntax that parses/prints a single character that does not match any of the characters in 'chars'

Syntax that does not pares or print anything but fails with 'failure'

Syntax that parses/prints a single character that matches the given predicate, or fails with 'failure'

Parse or print a single character and fail if it is 'value'

Parse or print a single character and fail with 'failure' if it is 'value'

Syntax that executes a regular expression on the input and results in the chunk of the parsed characters, or fails with 'failure'.

Syntax that during parsing executes a regular expression on the input and results in the last parsed character, or fails with 'failure'. Useful for regexes that are known to parse a single character. The printer prints the character provided as input value.

Parse with a given regular expression and discard its results. If the regex fails, fail with 'failure'. When printing, the chunk of characters in 'value' gets printed.

Syntax that parses/prints a specific string 'str', and results in 'value'

Syntax that does not parse or print anything but succeeds with 'value'

Syntax that executes a regular expression on the input and results in the chunk of the parsed characters. The regex should never fail.

Syntax that during parsing executes a regular expression on the input and results in the last parsed character. The regex should never fail. Useful for regexes that are known to parse a single character. The printer prints the character provided as input value.

Parse with a given regular expression and discard its results. The regex should never fail. When printing, the chunk of characters in 'value' gets printed.

Syntax that combines all the constructors of subclasses of a sum type

Syntax of a single alpha-numeric character

Syntax that parses/prints a single character

Syntax that parses/prints an arbitrary long string

Syntax of a single digit

Syntax that in parser mode only succeeds if the input stream has been consumed fully.

This can be used to require that a parser consumes the full input.

Syntax that in parser mode results in the current input stream position

Syntax of a single letter

Syntax that results in unit

Syntax of a single whitespace character