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Top Forums Shell Programming and Scripting Script showing incorrect output Post 302979296 by Scrutinizer on Friday 12th of August 2016 04:16:25 AM
Old 08-12-2016
Quote:
Originally Posted by rovf
[..]
Also, note that a

Code:
for i in `...`

is safe only if the list returned from the command is not longer than the maximum length of a command line. Whether or not this is a risk in your case, I can not say, because I don't know how large the resulting list can be.

[..]
This is not correct, there are no line length limitations to a for loop. A for loop is not a utility, it is not even a builtin utility. A for loop is part of the shell syntax, so neither the limitations of passing parameters to a subprocess apply, nor do command line limitations; for the for loop itself no command is being called and no subprocess is being started, and so neither LINE_MAX nor ARG_MAX play a role here...

Last edited by Scrutinizer; 08-12-2016 at 05:24 AM..
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Font::TTF::Post(3)					User Contributed Perl Documentation					Font::TTF::Post(3)

NAME
Font::TTF::Post - Holds the Postscript names for each glyph DESCRIPTION
Holds the postscript names for glyphs. Note that they are not held as an array, but as indexes into two lists. The first list is the standard Postscript name list defined by the TrueType standard. The second comes from the font directly. Looking up a glyph from a Postscript name or a name from a glyph number is achieved through methods rather than variable lookup. This class handles PostScript table types of 1, 2, 2.5 & 3, but not version 4. Support for version 2.5 is as per Apple spec rather than MS. The way to look up Postscript names or glyphs is: $pname = $f->{'post'}{'VAL'}[$gnum]; $gnum = $f->{'post'}{'STRINGS'}{$pname}; INSTANCE VARIABLES
Due to different systems having different limitations, there are various class variables available to control what post table types can be written. $Font::TTF::Post::no25 If set tells Font::TTF::Post::out to use table type 2 instead of 2.5 in case apps cannot handle version 2.5. VAL Contains an array indexed by glyph number of Postscript names. This is used when writing out a font. STRINGS An associative array of Postscript names mapping to the highest glyph with that name. These may not be in sync with VAL. In addition there are the standard introductory variables defined in the standard: FormatType italicAngle underlinePosition underlineThickness isFixedPitch minMemType42 maxMemType42 minMemType1 maxMemType1 METHODS
$t->read Reads the Postscript table into memory from disk $t->out($fh) Writes out a new Postscript name table from memory or copies from disk $t->XML_element($context, $depth, $key, $val) Outputs the names as one block of XML BUGS
o No support for type 4 tables AUTHOR
Martin Hosken Martin_Hosken@sil.org. See Font::TTF::Font for copyright and licensing. perl v5.16.3 2012-02-23 Font::TTF::Post(3)
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