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ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c
c HTCd - Copyright (C) 1998-2006 Henrik Rydberg
c
c This program is free software; you can redistribute it and/or modify
c it under the terms of the GNU General Public License as published by
c the Free Software Foundation; either version 2 of the License, or
c (at your option) any later version.
c
c This program is distributed in the hope that it will be useful,
c but WITHOUT ANY WARRANTY; without even the implied warranty of
c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
c GNU General Public License for more details.
c
c You should have received a copy of the GNU General Public License
c along with this program; if not, write to the Free Software
c Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
c
integer function rfind_not_of(s,n,c)
byte s(0:1),c(0:1)
integer i,m,n
m=mod(n,16)
do 10 i=n-16,m,-16
if(c(s(i+15)).eq.0)go to 115
if(c(s(i+14)).eq.0)go to 114
if(c(s(i+13)).eq.0)go to 113
if(c(s(i+12)).eq.0)go to 112
if(c(s(i+11)).eq.0)go to 111
if(c(s(i+10)).eq.0)go to 110
if(c(s(i+9)).eq.0)go to 109
if(c(s(i+8)).eq.0)go to 108
if(c(s(i+7)).eq.0)go to 107
if(c(s(i+6)).eq.0)go to 106
if(c(s(i+5)).eq.0)go to 105
if(c(s(i+4)).eq.0)go to 104
if(c(s(i+3)).eq.0)go to 103
if(c(s(i+2)).eq.0)go to 102
if(c(s(i+1)).eq.0)go to 101
if(c(s(i)).eq.0)go to 100
10 continue
do 20 i=m-1,0,-1
if(c(s(i)).eq.0)go to 100
20 continue
rfind_not_of=-1
return
100 rfind_not_of=i
return
101 rfind_not_of=i+1
return
102 rfind_not_of=i+2
return
103 rfind_not_of=i+3
return
104 rfind_not_of=i+4
return
105 rfind_not_of=i+5
return
106 rfind_not_of=i+6
return
107 rfind_not_of=i+7
return
108 rfind_not_of=i+8
return
109 rfind_not_of=i+9
return
110 rfind_not_of=i+10
return
111 rfind_not_of=i+11
return
112 rfind_not_of=i+12
return
113 rfind_not_of=i+13
return
114 rfind_not_of=i+14
return
115 rfind_not_of=i+15
return
end
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