Return to first8.c CVS log

Up to [CSRG BSD Unix] / 42BSD / ucb / lisp / franz / 68k

Annotation of 42BSD/ucb/lisp/franz/68k/first8.c, revision 1.1

1.1     ! root        1: #include <stdio.h>
        !             2: char code[256];
        !             3: #define FIRST 3
        !             4: #define FOLLOW 2
        !             5: #define ZERO 6
        !             6: #define next() (((c = getc(si))==EOF)? exit(0):0)
        !             7: #define copy() putc(c,so)
        !             8: #define type() code[(unsigned char)c]
        !             9: 
        !            10: init() {
        !            11:        doit(FIRST,"ABCDEFGHIJKLMNOPQRSTUVWXYZ_");
        !            12:        doit(FIRST,"0abcdefghijklmnopqrstuvwxyz_");
        !            13:        doit(FOLLOW,"123456789");
        !            14: }
        !            15: doit(act,list)
        !            16: register unsigned char *list;
        !            17: {
        !            18:        while(*list) {code[*list++]=act;}
        !            19: }
        !            20: main( )
        !            21: {
        !            22:        register FILE *si = stdin, *so = stdout;
        !            23:        register c, count;
        !            24: 
        !            25:        init();
        !            26: copying:
        !            27:        do { next(); copy();} while(type()!=FIRST);
        !            28: hexnum:
        !            29:        if(c=='0') {
        !            30:                next();
        !            31:                if(c=='X'||c=='x') {
        !            32:                        do { copy(); next();}
        !            33:                        while (index("0123456789abcdefABCDEF",c&0x7f)>0);
        !            34:                }
        !            35:                ungetc(c,si); goto copying;
        !            36:        }
        !            37: counting:
        !            38:        for(count = 0; count < 7; count++) {
        !            39:                next();
        !            40:                copy();
        !            41:                if(!(type()&FOLLOW)) goto copying;
        !            42:        }
        !            43: squelch:
        !            44:        do { next(); } while (type()&FOLLOW);
        !            45:        copy();
        !            46:        goto copying;
        !            47: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.