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- /* tc.c: find character not in table to delimit fields */
- # include "t..c"
- choochar()
- {
- /* choose funny characters to delimit fields */
- int had[128], ilin,icol, k;
- char *s;
- for(icol=0; icol<128; icol++)
- had[icol]=0;
- F1 = F2 = 0;
- for(ilin=0;ilin<nlin;ilin++)
- {
- if (instead[ilin]) continue;
- if (fullbot[ilin]) continue;
- for(icol=0; icol<ncol; icol++)
- {
- k = ctype(ilin, icol);
- if (k==0 || k == '-' || k == '=')
- continue;
- s = table[ilin][icol].col;
- if (point(s))
- while (*s)
- had[*s++]=1;
- s=table[ilin][icol].rcol;
- if (point(s))
- while (*s)
- had[*s++]=1;
- }
- }
- /* choose first funny character */
- for(
- s="\002\003\005\006\007!%/?,:;<=>@`^~_{}+-*ABCDEFGHIJKMNOPQRSTUVWXYZabcdefgjkoqrstwxyz";
- *s; s++)
- {
- if (had[*s]==0)
- {
- F1= *s;
- had[F1]=1;
- break;
- }
- }
- /* choose second funny character */
- for(
- s="\002\003\005\006\007:_~^`@;,<=>#%&!/?{}+-*ABCDEFGHIJKMNOPQRSTUVWXZabcdefgjkoqrstuwxyz";
- *s; s++)
- {
- if (had[*s]==0)
- {
- F2= *s;
- break;
- }
- }
- if (F1==0 || F2==0)
- error("couldn't find characters to use for delimiters");
- return;
- }
- point(s)
- {
- return(s>= 128 || s<0);
- }
-