45 lines
1.3 KiB
OCaml
45 lines
1.3 KiB
OCaml
open Pdfutil
|
|
|
|
let of_utf8 (f, fontsize) t =
|
|
Pdftext.codepoints_of_utf8 t
|
|
|> option_map (Pdftext.charcode_extractor_of_font_real f)
|
|
|> map char_of_int
|
|
|> implode
|
|
|
|
let of_pdfdocencoding (f, fontsize) t =
|
|
of_utf8 (f, fontsize) (Pdftext.utf8_of_pdfdocstring t)
|
|
|
|
let rec of_utf8_with_newlines t =
|
|
let items = ref [] in
|
|
let buf = Buffer.create 256 in
|
|
String.iter
|
|
(function
|
|
| '\n' ->
|
|
let c = Buffer.contents buf in
|
|
if c <> "" then items := Cpdftype.Text (explode c)::!items;
|
|
items := Cpdftype.NewLine::!items;
|
|
Buffer.clear buf
|
|
| '\r' -> ()
|
|
| x ->
|
|
Buffer.add_char buf x)
|
|
t;
|
|
(* Do last one *)
|
|
let c = Buffer.contents buf in
|
|
if c <> "" then items := Text (explode c)::!items;
|
|
rev !items
|
|
|
|
let typeset ~papersize ~font ~fontsize text =
|
|
let pdf = Pdf.empty () in
|
|
let margin =
|
|
Pdfunits.convert
|
|
72. (Pdfpaper.unit papersize) (Pdfunits.PdfPoint) (Pdfpaper.width papersize) /. 15.
|
|
in
|
|
let pages =
|
|
Cpdftype.typeset
|
|
margin margin margin margin papersize pdf
|
|
([Cpdftype.Font (font, fontsize); Cpdftype.BeginDocument] @
|
|
of_utf8_with_newlines (Pdfio.string_of_bytes text))
|
|
in
|
|
let pdf, pageroot = Pdfpage.add_pagetree pages pdf in
|
|
Pdfpage.add_root pageroot [] pdf
|