string cleaning

Alex Rice alex at mindlube.com
Mon Nov 10 18:19:34 CST 2003


On Nov 10, 2003, at 3:52 PM, Alex Rice wrote:
>  Can anyone make a guess as to what printable characters means in that 
> context and a good transcript method to clean strings for sending to 
> CLIPS?

(answering self)

OK, there is what "printable characters" means for the C standard 
library.

Unless there is a way to get format() or some other function in 
transcript to do this? I guess the solution is to write a transcript 
version of this C function.

Also I realized in most cases I can just base64 encode my strings 
instead of dealing with this issue.

"""
    The isprint() function tests for any printing character including 
space
      (` ').  For single C chars locales (see multibyte(3)) the value of 
the
      argument is representable as an unsigned char or the value of EOF. 
  In
      the ASCII character set, this includes the following characters 
(with
      their numeric values shown in octal):

      040 sp        041 ``!''     042 ``"''     043 ``#''     044 ``$''
      045 ``%''     046 ``&''     047 ``'''     050 ``(''     051 ``)''
      052 ``*''     053 ``+''     054 ``,''     055 ``-''     056 ``.''
      057 ``/''     060 ``0''     061 ``1''     062 ``2''     063 ``3''
      064 ``4''     065 ``5''     066 ``6''     067 ``7''     070 ``8''
      071 ``9''     072 ``:''     073 ``;''     074 ``<''     075 ``=''
      076 ``>''     077 ``?''     100 ``@''     101 ``A''     102 ``B''
      103 ``C''     104 ``D''     105 ``E''     106 ``F''     107 ``G''
      110 ``H''     111 ``I''     112 ``J''     113 ``K''     114 ``L''
      115 ``M''     116 ``N''     117 ``O''     120 ``P''     121 ``Q''
      122 ``R''     123 ``S''     124 ``T''     125 ``U''     126 ``V''
      127 ``W''     130 ``X''     131 ``Y''     132 ``Z''     133 ``[''
      134 ``\''     135 ``]''     136 ``^''     137 ``_''     140 ```''
      141 ``a''     142 ``b''     143 ``c''     144 ``d''     145 ``e''
      146 ``f''     147 ``g''     150 ``h''     151 ``i''     152 ``j''
      153 ``k''     154 ``l''     155 ``m''     156 ``n''     157 ``o''
      160 ``p''     161 ``q''     162 ``r''     163 ``s''     164 ``t''
      165 ``u''     166 ``v''     167 ``w''     170 ``x''     171 ``y''
      172 ``z''     173 ``{''     174 ``|''     175 ``}''     176 ``~''
"""

Alex Rice <alex at mindlube.com> | Mindlube Software | 
<http://mindlube.com>

what a waste of thumbs that are opposable
to make machines that are disposable  -Ani DiFranco



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