[Bug 1008115] Re: man displays φ (u03C6) as ϕ (u03D5)

[Alkis Georgopoulos]

The affected characters from the Greek Unicode ranges are:

ʹ (u0374) gets transformed to ʹ (u02B9)
; (u037E) gets stripped
΅ (u0385) gets transformed to ΅ (u1FEE)
Ά (u0386) gets transformed to Ά (u1FBB)
· (u0387) gets transformed to · (u00B7)
Έ (u0388) gets transformed to Έ (u1FC9)
Ή (u0389) gets transformed to Ή (u1FCB)
Ί (u038A) gets transformed to Ί (u1FDB)
Ό (u038C) gets transformed to Ό (u1FF9)
Ύ (u038E) gets transformed to Ύ (u1FEB)
Ώ (u038F) gets transformed to Ώ (u1FFB)
ΐ (u0390) gets transformed to ΐ (u1FD3)
ά (u03AC) gets transformed to ά (u1F71)
έ (u03AD) gets transformed to έ (u1F73)
ή (u03AE) gets transformed to ή (u1F75)
ί (u03AF) gets transformed to ί (u1F77)
ΰ (u03B0) gets transformed to ΰ (u1FE3)
φ (u03C6) gets transformed to ϕ (u03D5)
ό (u03CC) gets transformed to ό (u1F79)
ύ (u03CD) gets transformed to ύ (u1F7B)
ώ (u03CE) gets transformed to ώ (u1F7D)
ϕ (u03D5) gets transformed to φ (u03C6)
ι (u1FBE) gets transformed to ι (u03B9)
` (u1FEF) gets transformed to ` (u0060)
´ (u1FFD) gets transformed to ´ (u00B4)

** Summary changed:

- man displays φ (u03C6) as ϕ (u03D5)
+ Mapping errors from some Unicode character codes to groff entities

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https://bugs.launchpad.net/bugs/1008115

Title:
  Mapping errors from some Unicode character codes to groff entities

Status in “groff” package in Ubuntu:
  Triaged

Bug description:
  While running `man help2man` I noticed that the Greek small letter Phi (u03C6) was displayed as Greek Phi symbol (u03D5) instead, e.g. like this:
  "που εμϕανίζονται στο αρχείο για να συμπεριληϕθούν"
  instead of this:
  "που εμφανίζονται στο αρχείο για να συμπεριληφθούν".

  `zcat /usr/share/man/el/man1/help2man.1.gz` vefiries that the problem
  is in `man` and not in the help2man manpage.

  Using man-db 2.6.1-2.

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