package fmlib

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Functional monadic library

Install

Dune Dependency

github.com Readme Edit opam file Versions (16)

Authors

H

Helmut Brandl <helmut.brandl@gmx.net>

Maintainers

H

Helmut Brandl <helmut.brandl@gmx.net>

Sources

0.1.0.tar.gz

sha256=0558665285e4d7691e5a80c90ab05a7acb86c09f03ceef6589f150f6d3574573

md5=fb61f4d6e7233cf8d1d71758e6110c1e

doc/fmlib.fmlib_parse/Fmlib_parse/Indent/index.html

Module `Fmlib_parse.Indent`Source

The allowed indentations: Helper module for indentation sensitive parsing.

Sourcetype violation =

| Indent of int
| Align of int
| Align_between of int * int

Sourcetype t

Allowed indentations

Sourceval initial : t

Initially all indentations 0,1,... are allowed and no alignment is required.

Sourceval check_position : int -> t -> violation option

check_position col ind Return a violation, if pos is not an allowed indentation position. Otherwise return None.

Sourceval token : int -> t -> t

token pos ind Accept a token at column pos.

Preconditions: is_position_allowed pos ind.

Sourceval align : t -> t

align ind Set the alignment flag.

The next token sets the indentation set to {pos} where pos is the column of the token and clears the aligment flag.

Sourceval left_align : t -> t

left_align ind Set the alignment flag and the indentation set to {pos} where pos is the lower bound of the current set of indentation positions.

Sourceval start_indent : int -> t -> t

start_indent i ind Start an indented grammar construct indented by at least i relative to its parent.

If the aligmnent flag is set, indentation is ignored.

Precondition: 0 <= incr

Sourceval end_indent : int -> t -> t -> t

end_indent i ind0 ind End the current indentation which has been started by start_indent i ind0.