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html: hide some utils in a Helpers_ module

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Simon Cruanes 2022-03-19 23:00:42 -04:00
parent f1831f364e
commit b61c03d379
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1 changed files with 13 additions and 0 deletions
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src/gen/gentags.ml
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@ -334,6 +334,9 @@ type nary' = ?if_:bool -> attribute list -> sub_elt list -> elt
(** Element with children, represented as a list of {!sub_elt} to be flattened
@param if_ if false, do not print anything (default true) *)
(**/**)
module Helpers_ = struct
(** Escape string so it can be safely embedded in HTML text. *)
let _str_escape (out:Out.t) (s:string) : unit =
String.iter (function
@ -383,18 +386,28 @@ let _write_tag_attrs ~void (out:Out.t) (tag:string) (attrs:attribute list) : uni
_write_attrs out attrs;
if void then Out.add_string out "/>" else Out.add_string out ">"
end
open Helpers_
(**/**)
(** Sub-element with a single element inside. *)
let[@inline] sub_e (elt:elt) : sub_elt = `E elt
(** Sub-element with a list of items inside. *)
let[@inline] sub_l (l:elt list) : sub_elt = `L l
(** Sub-element with a sequence ({!Seq.t}) of items inside. *)
let[@inline] sub_seq (l:elt Seq.t) : sub_elt = `S l
(** Helper to build a {!Seq.t} from an array. *)
let seq_of_array (a:_ array) : _ Seq.t =
let rec loop i () =
if i=Array.length a then Seq.Nil
else Seq.Cons (a.(i), loop (i+1))
in loop 0
(** Sub-element with nothing inside. Useful in conditionals, when one
decides not to emit a sub-element at all. *)
let sub_empty : sub_elt = `Nil
(** Emit a string value, which will be escaped. *)