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Diffstat (limited to 'lib/unicode.mli')
| -rw-r--r-- | lib/unicode.mli | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/lib/unicode.mli b/lib/unicode.mli new file mode 100644 index 00000000..098f6c91 --- /dev/null +++ b/lib/unicode.mli @@ -0,0 +1,28 @@ +(************************************************************************) +(* v * The Coq Proof Assistant / The Coq Development Team *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(************************************************************************) + +(** Unicode utilities *) + +type status = Letter | IdentPart | Symbol + +exception Unsupported + +(** Classify a unicode char into 3 classes, or raise [Unsupported] *) +val classify : int -> status + +(** Check whether a given string be used as a legal identifier. + - [None] means yes + - [Some (b,s)] means no, with explanation [s] and severity [b] *) +val ident_refutation : string -> (bool * string) option + +(** First char of a string, converted to lowercase *) +val lowercase_first_char : string -> string + +(** For extraction, turn a unicode string into an ascii-only one *) +val is_basic_ascii : string -> bool +val ascii_of_ident : string -> string |