Parsing entities in org input

Parsing entities in org input

[Axel Kielhorn]

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Hi,

I’m writing a lot in org recently but I have to provide docx for my coworkers.

My usual way is to export to odt, open in LO and export as docx.

Since Pandoc can read org and export docx, I wanted to take a shortcut.

I use entities instead of Unicode characters since they are easier to type on Windows.
When converting to HTML I get the following Warnings, but the characters appear in the output:

[warning] Skipped '\times ' at line 1 column 8
[warning] Skipped '\Omega ' at line 1 column 8
[warning] Skipped '\pm ' at line 1 column 5
[warning] Skipped '\cdots ' at line 1 column 8
[warning] Skipped '\permil ' at line 1 column 9
[warning] Skipped '\le ' at line 1 column 5
[warning] Skipped '\mu{}' at line 1 column 6
[warning] Skipped '\geq ' at line 1 column 6
[warning] Skipped '\Rightarrow ' at line 1 column 13

The greek letters are rendered as italic, despite the fact that they are not in math mode.

I’m using pandoc 2.0 build from git this morning.

Axel


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#+TITLE: Pandoc ECM
#+AUTHOR: Axel Kielhorn
#+LANGUAGE: de
* Spezifikation
:PROPERTIES:
:ID:       F5AD316C-7BAE-41DD-908E-00B152819F88
:org-index-ref: -3-
:END:
Vollständige Spezifikation, von der GL genehmigt.
Alle Änderungen werden hier mit Datum und Verursacher eingepflegt.
** Aufstellung
- Bodenbelastung (N/m^{2})
- Druckluftversorgung 5,5 bar \dots 6,9 bar
** Transport
- [ ] LKW-Transport
  - Länge \times Breite \times Höhe :: 13,6 m \times 2,4 m \times 2,7 m
  - Masse :: 25 000 kg (incl. Verpackung)
- [ ] See-Transport
  - [ ] 20 Fuß Container
    - Länge \times Breite \times Höhe :: 5,8 m \times 2,3 m \times 2,3 m
    - Masse :: 21 000 kg (Netto)
  - [ ] 40 Fuß Container
    - Länge \times Breite \times Höhe :: 12,0 m \times 2,3 m \times 2,3 m
    - Masse :: 26 000 kg (Netto)
  - [ ] 20 Fuß High Cube
    - Länge \times Breite \times Höhe :: 5,8 m \times 2,3 m \times 2,6 m
    - Masse :: 21 000 kg (Netto)
  - [ ] 40 Fuß High Cube
    - Länge \times Breite \times Höhe :: 12,0 m \times 2,3 m \times 2,6 m
    - Masse :: 26 000 kg (Netto)
- [ ] Luftfracht
  - [ ] AMJ
    - Länge \times Breite \times Höhe :: 3,0 m \times 2,3 m \times 2,4 m
    - Masse :: 6 500 kg (Netto)
* Normteile

Um ein einheitliches Aussehen und eine Beschaffung in höheren Stückzahlen zu ermöglichen, sollten die bevorzugten Normteile hier aufgeführt werden.
** Profile
- Maschinenrahmen 100 \times 60 \times 5
- Baugruppenrahmen 50 \times 30 \times 2
** Nadellager

| HK 1010 | C_{0} = 5,1 kN |
| HK 1015 | C_{0} = 8,8 kN |
  
Passung Stahl N6, Alu R6
Montagefase 10° -- 15°
** Transportsysteme
*** Ausführung
- [ ] Kopfantrieb
- [ ] \Omega Antrieb
** Ketten
| Kette | Größe             | Breite  | Bruchkraft |
|-------+-------------------+---------+------------|
| 06 B1 | 3/8″ \times 7/32″ | 13,5 mm | 8900 N     |
| 08 B1 | 1/2″ \times 5/8″  | 17 mm   | 17800 N    |
| 10 B1 | 5/8″ \times 3/8″  | 19,6 mm | 22200 N    |
| 12 B1 | 3/4″ \times 7/16″ | 22,7 mm | 28900 N    |

** Gasdruckfedern
- ACE
  - Toleranz \pm 5 \cdots 7 %, $-$ 20 / $+$ 40 N
  - Temperaturkoeffizient 3,4 \permil / K
* Interpretation EHEDG
- Gestaltung von Fertigungsteilen
  + R_{a} \le 0,8 \mu{}m
  + R_{innen} \geq 6 mm
- Drehstrommotoren ohne Kühlrippen
  - Asepticmotoren mit OS1 Beschichtung (150 \mu{}m)
  - VA-Motoren
- Rohrrahmen nicht direkt verschrauben
  - 10 mm Zwischenraum \Rightarrow 80 mm Sicherheitsabstand zur Gefährdung
  - 20 mm Zwischenraum \Rightarrow 120 mm Sicherheitsabstand zur Gefährdung

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Re: Parsing entities in org input

[Albert Krewinkel]

Hi Alex,

apologies for the sluggish reply.

Axel Kielhorn <a.kielhorn-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> I use entities instead of Unicode characters since they are easier to type on Windows.
> When converting to HTML I get the following Warnings, but the characters appear in the output:
>
> [warning] Skipped '\times ' at line 1 column 8
> [warning] Skipped '\Omega ' at line 1 column 8
> [warning] Skipped '\pm ' at line 1 column 5
> [warning] Skipped '\cdots ' at line 1 column 8
> [warning] Skipped '\permil ' at line 1 column 9
> [warning] Skipped '\le ' at line 1 column 5
> [warning] Skipped '\mu{}' at line 1 column 6
> [warning] Skipped '\geq ' at line 1 column 6
> [warning] Skipped '\Rightarrow ' at line 1 column 13

I believe that this is a side-effect of pandoc's new feature to warn
whenever information might be lost. The org parser also tries to read
the command as if it was a MathML entity, so it still succeeds. The org
reader should handle this better, please open an issue on github for
this: <https://github.com/jgm/pandoc/issues>

> The greek letters are rendered as italic, despite the fact that they
> are not in math mode.

This is most certainly a bug in the org reader, please report this as
well in a separate issue. Note that Emacs org-mode exporters aren't
entirely consistent in this regard, either: The LaTeX exporter renders
the mu in italics, while the HTML exporter uses a normal font. However,
both exporters render the omega in a normal font, while pandoc uses
italics; this is a bug in the org reader.

Cheers,

Albert

Re: Parsing entities in org input

[John MACFARLANE]

inlineCommand in the LaTeX reader will call 'report'
to issue this warning for unknown commands.  By the
time the org reader backtracks to try it as a MathML entity,
it's too late, the warning has already been issued.

One easy but somewhat ugly workaround would be to change the
verbosity level prior to calling inlineCommand, and then
change it back afterwards.

+++ Albert Krewinkel [Aug 18 17 23:27 ]:

>I believe that this is a side-effect of pandoc's new feature to warn
>whenever information might be lost. The org parser also tries to read
>the command as if it was a MathML entity, so it still succeeds. The org
>reader should handle this better, please open an issue on github for
>this: <https://github.com/jgm/pandoc/issues>