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-
- /*
- ** settab.c -- search command line for tab list possibly
- ** terminated with an interval (+n) and set up
- ** tabs[MAXLINE+1]
- */
- #define DEFTAB 8
- settab(tabs, argc, argv) char tabs[]; int argc, *argv; {
- int i, j, k;
- char parm[9];
- i=0;
- while(++i<MAXLINE) tabs[i]=NO;
- if((getarg(1, parm, 9, argc, argv))==EOF) {
- i=0;
- while(++i<MAXLINE)
- if((i%DEFTAB)==1) tabs[i]=YES;
- return YES;
- }
- i=0;
- j=1;
- while(getarg(++i, parm, 9, argc, argv)!=EOF) {
- if(utoi(parm, &k)) {
- if(k<=MAXLINE) {
- tabs[k]=YES;
- j=k;
- }
- else {
- fputs("tab stop beyond max line length\n", stderr);
- return ERR;
- }
- }
- else if(parm[0]=='+') {
- if(utoi((parm+1), &k))
- while((j=j+k)<=MAXLINE) tabs[j]=YES;
- }
- else return ERR;
- }
- return YES;
- }
-