HP C/iX Library Reference Manual (30026-90004)

344 Chapter5

HP C/iX Library Function Descriptions

strncmp

exit(2);

}

fp = fopen(argv[1], "r");

if(fp == NULL) {

fprintf(stderr, "Can't open %s.\n", argv[1]);

exit(1);

}

while(fgets(line, 100, fp) != NULL) {

if(strncmp(line, ".SH", 3) == 0)

else if(strncmp(line, ".PP", 3) == 0)

else if(strncmp(line, ".TP", 3) == 0)

else if(strncmp(line, ".RS", 3) == 0)

else if(strncmp(line, ".RE", 3) == 0)

else if(strncmp(line, ".PD", 3) == 0)

else if(strncmp(line, ".IP", 3) == 0)

else if(line[0] == '.')

}

printf("No. of .SH's: %d\n", nsh);

printf("No. of .PP's: %d\n", npp);

printf("No. of .TP's: %d\n", ntp);

printf("No. of .RS's: %d\n", nrs);

printf("No. of .RE's: %d\n", nre);

printf("No. of .PD's: %d\n", npd);

printf("No. of .IP's: %d\n", nip);

printf("No. of misc. macros: %d\n", nmisc);

fclose(fp);

exit(0);

}

In the program above, strncmp() compares the ﬁrst three characters of each line read. If

the ﬁrst three characters match a particular macro, the appropriate counter is

incremented. If the line begins with ".", but is not one of the macros being searched for, the

"miscellaneous" counter is incremented. The total number of lines in the ﬁle is also given.