On Monday 28 May 2018 02:48:09 Ingo Schwarze wrote: > Hi Pali, > > Pali Rohar wrote on Sun, May 27, 2018 at 11:52:44PM +0200: > > > Now I looked deeply at man -Tps output and basically \- sequence is > > written as character 0xAD (\255 in octet) into output postscript file. > > Therefore it is SOFT HYPHEN (U+00AD), > > No, that is not a "soft hyphen". Glyph numbers in fonts used for > PostScript output have nothing to do with Unicode code points. > Look at the file font/devps/TR for examples: > > PS name TR# Unicode > ------- --- ------- > asciicircum 0x00 U+005E > asciitilde 0x01 U+007E > Scaron 0x02 U+0053 U+030C > Zcaron 0x03 U+005A U+030C > scaron 0x04 U+0073 U+030C > zcaron 0x05 U+007A U+030C > Ydieresis 0x06 U+0059 U+0308 > trademark 0x07 U+2122 > quotesingle 0x08 U+0027 > Euro 0x09 U+20AC > hyphen 0x2d U+2010 > circumflex 0x5e U+02C6 > quoteleft 0x60 U+2018 > tilde 0x7e U+02DC > bullet 0x83 U+2022 > florin 0x84 U+0192 > minus 0xad U+2212 > > and so on and so forth, it's completely different all over the place.
I'm saying that I generated PostScript file via man -Tps and then looked into generated PostScript file. And in PostScript file on place where should command line switch --something was F2(\255... or F2<ad... \255 is IIRC glyph encoded in octets and <ad> in hex. 0255 and 0xAD are both decimal 173, so both refers to same glyph. Now I see that in that PostScript file is also attached encoding vector def /ENC0 [ ... ] and on position 173 is name /minus. And according to Adobe /minus name represent Unicode code points U+2212. So you are right it is not soft-hyphen, I forgot to see at encoding vector in result PostScript file. And also answer my question why ps2pdf converter from generates PDF file where for switches are used U+2212 code points. ps2pdf did it correctly by looking into attached encoding vector /ENC0. So problem is for sure in grodvi which generates that PS file with attached encoding vector. Unicode's hyphe-minus has code point U+002D and according to Adobe's glyphlist.txt, U+002D is assigned to glyph name /hyphen. So man -Tps (or grodvi) can be fixed. Just it is needed to generate correct encoding vector and use proper glyph name /hyphen for \- when generating from manpage. > > so it is incorrect for command line switch. > > It is not incorrect. The TR font does not contain a glyph for > hyphen-minus, so plain minus is used as a fallback. In font/devps/TR file is this line in "charset" section: \- 564,286 0 173 minus Should not this be number 45 instead of 173? -- Pali Rohár pali.ro...@gmail.com
