wc: import new wc from sources
This commit is contained in:
cinap_lenrek
parent
995379e388
commit
b06a35ba56
1 changed files with 90 additions and 271 deletions
361
sys/src/cmd/wc.c
361
sys/src/cmd/wc.c
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@ -1,26 +1,84 @@
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/*
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* wc -- count things in utf-encoded text files
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* Bugs:
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* The only white space characters recognized are ' ', '\t' and '\n', even though
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* ISO 10646 has many more blanks scattered through it.
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* Should count characters that cannot occur in any rune (hex f0-ff) separately.
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* Should count non-canonical runes (e.g. hex c1,80 instead of hex 40).
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* Count bytes within runes, if it fits in a uvlong, and other things.
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*/
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#include <u.h>
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#include <libc.h>
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#define NBUF (8*1024)
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uvlong nline, tnline, pline;
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uvlong nword, tnword, pword;
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uvlong nrune, tnrune, prune;
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uvlong nbadr, tnbadr, pbadr;
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uvlong nchar, tnchar, pchar;
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void count(int, char *);
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void report(uvlong, uvlong, uvlong, uvlong, uvlong, char *);
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#include <bio.h>
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/* flags, per-file counts, and total counts */
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static int pline, pword, prune, pbadr, pchar;
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static uvlong nline, nword, nrune, nbadr, nchar;
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static uvlong tnline, tnword, tnrune, tnbadr, tnchar;
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enum{Space, Word};
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static void
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wc(Biobuf *bin)
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{
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int where;
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long r;
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nline = 0;
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nword = 0;
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nrune = 0;
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nbadr = 0;
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where = Space;
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while ((long)(r = Bgetrune(bin)) >= 0) {
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nrune++;
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if(r == Runeerror) {
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nbadr++;
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continue;
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}
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if(r == '\n')
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nline++;
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if(where == Word){
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if(isspacerune(r))
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where = Space;
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}else
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if(isspacerune(r) == 0){
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where = Word;
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nword++;
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}
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}
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nchar = Boffset(bin);
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tnline += nline;
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tnword += nword;
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tnrune += nrune;
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tnbadr += nbadr;
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tnchar += nchar;
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}
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static void
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report(uvlong nline, uvlong nword, uvlong nrune, uvlong nbadr, uvlong nchar, char *fname)
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{
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char line[1024], *s, *e;
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s = line;
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e = line + sizeof line;
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line[0] = 0;
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if(pline)
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s = seprint(s, e, " %7llud", nline);
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if(pword)
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s = seprint(s, e, " %7llud", nword);
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if(prune)
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s = seprint(s, e, " %7llud", nrune);
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if(pbadr)
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s = seprint(s, e, " %7llud", nbadr);
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if(pchar)
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s = seprint(s, e, " %7llud", nchar);
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if(fname != nil)
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seprint(s, e, " %s", fname);
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print("%s\n", line+1);
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}
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void
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main(int argc, char *argv[])
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{
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char *status="";
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int i, f;
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char *sts;
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Biobuf *bin;
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int i;
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sts = nil;
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ARGBEGIN {
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case 'l': pline++; break;
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case 'w': pword++; break;
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@ -31,269 +89,30 @@ main(int argc, char *argv[])
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fprint(2, "Usage: %s [-lwrbc] [file ...]\n", argv0);
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exits("usage");
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} ARGEND
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if(pline+pword+prune+pbadr+pchar == 0) {
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if(pline+pword+prune+pbadr+pchar == 0){
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pline = 1;
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pword = 1;
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pchar = 1;
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}
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if(argc==0)
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count(0, nil);
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else{
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for(i=0;i<argc;i++){
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f=open(argv[i], OREAD);
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if(f<0){
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if(argc == 0){
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bin = Bfdopen(0, OREAD);
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wc(bin);
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report(nline, nword, nrune, nbadr, nchar, nil);
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Bterm(bin);
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}else{
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for(i = 0; i < argc; i++){
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bin = Bopen(argv[i], OREAD);
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if(bin == nil){
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perror(argv[i]);
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status="can't open";
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}
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else{
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count(f, argv[i]);
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tnline+=nline;
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tnword+=nword;
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tnrune+=nrune;
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tnbadr+=nbadr;
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tnchar+=nchar;
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close(f);
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sts = "can't open";
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continue;
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}
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wc(bin);
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report(nline, nword, nrune, nbadr, nchar, argv[i]);
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Bterm(bin);
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}
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if(argc>1)
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report(tnline, tnword, tnrune, tnbadr, tnchar, "total");
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}
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exits(status);
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}
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void
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report(uvlong nline, uvlong nword, uvlong nrune, uvlong nbadr, uvlong nchar, char *fname)
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{
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char line[128], *e;
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line[0] = '\0';
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e = line;
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if(pline)
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e += sprint(e, " %7llud", nline);
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if(pword)
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e += sprint(e, " %7llud", nword);
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if(prune)
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e += sprint(e, " %7llud", nrune);
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if(pbadr)
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e += sprint(e, " %7llud", nbadr);
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if(pchar)
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sprint(e, " %7llud", nchar);
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if(fname)
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print("%s %s\n", line+1, fname);
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else
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print("%s\n", line+1);
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}
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/*
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* How it works. Start in statesp. Each time we read a character,
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* increment various counts, and do state transitions according to the
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* following table. If we're not in statesp or statewd when done, the
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* file ends with a partial rune.
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* | character
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* state |09,20| 0a |00-7f|80-bf|c0-df|e0-ef|f0-ff
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* -------+-----+-----+-----+-----+-----+-----+-----
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* statesp|ASP |ASPN |AWDW |AWDWX|AC2W |AC3W |AWDWX
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* statewd|ASP |ASPN |AWD |AWDX |AC2 |AC3 |AWDX
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* statec2|ASPX |ASPNX|AWDX |AWDR |AC2X |AC3X |AWDX
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* statec3|ASPX |ASPNX|AWDX |AC2R |AC2X |AC3X |AWDX
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*/
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enum{ /* actions */
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AC2, /* enter statec2 */
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AC2R, /* enter statec2, don't count a rune */
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AC2W, /* enter statec2, count a word */
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AC2X, /* enter statec2, count a bad rune */
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AC3, /* enter statec3 */
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AC3W, /* enter statec3, count a word */
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AC3X, /* enter statec3, count a bad rune */
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ASP, /* enter statesp */
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ASPN, /* enter statesp, count a newline */
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ASPNX, /* enter statesp, count a newline, count a bad rune */
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ASPX, /* enter statesp, count a bad rune */
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AWD, /* enter statewd */
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AWDR, /* enter statewd, don't count a rune */
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AWDW, /* enter statewd, count a word */
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AWDWX, /* enter statewd, count a word, count a bad rune */
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AWDX, /* enter statewd, count a bad rune */
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};
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uchar statesp[256]={ /* looking for the start of a word */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 00-07 */
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AWDW, ASP, ASPN, AWDW, AWDW, AWDW, AWDW, AWDW, /* 08-0f */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 10-17 */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 18-1f */
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ASP, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 20-27 */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 28-2f */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 30-37 */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 38-3f */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 40-47 */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 48-4f */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 50-57 */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 58-5f */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 60-67 */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 68-6f */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 70-77 */
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AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, AWDW, /* 78-7f */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* 80-87 */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* 88-8f */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* 90-97 */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* 98-9f */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* a0-a7 */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* a8-af */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* b0-b7 */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* b8-bf */
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AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, /* c0-c7 */
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AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, /* c8-cf */
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AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, /* d0-d7 */
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AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, AC2W, /* d8-df */
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AC3W, AC3W, AC3W, AC3W, AC3W, AC3W, AC3W, AC3W, /* e0-e7 */
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AC3W, AC3W, AC3W, AC3W, AC3W, AC3W, AC3W, AC3W, /* e8-ef */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* f0-f7 */
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AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,AWDWX,/* f8-ff */
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};
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uchar statewd[256]={ /* looking for the next character in a word */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 00-07 */
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AWD, ASP, ASPN, AWD, AWD, AWD, AWD, AWD, /* 08-0f */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 10-17 */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 18-1f */
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ASP, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 20-27 */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 28-2f */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 30-37 */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 38-3f */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 40-47 */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 48-4f */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 50-57 */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 58-5f */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 60-67 */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 68-6f */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 70-77 */
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AWD, AWD, AWD, AWD, AWD, AWD, AWD, AWD, /* 78-7f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 80-87 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 88-8f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 90-97 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 98-9f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* a0-a7 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* a8-af */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* b0-b7 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* b8-bf */
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AC2, AC2, AC2, AC2, AC2, AC2, AC2, AC2, /* c0-c7 */
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AC2, AC2, AC2, AC2, AC2, AC2, AC2, AC2, /* c8-cf */
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AC2, AC2, AC2, AC2, AC2, AC2, AC2, AC2, /* d0-d7 */
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AC2, AC2, AC2, AC2, AC2, AC2, AC2, AC2, /* d8-df */
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AC3, AC3, AC3, AC3, AC3, AC3, AC3, AC3, /* e0-e7 */
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AC3, AC3, AC3, AC3, AC3, AC3, AC3, AC3, /* e8-ef */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* f0-f7 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* f8-ff */
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};
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uchar statec2[256]={ /* looking for 10xxxxxx to complete a rune */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 00-07 */
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AWDX, ASPX, ASPNX,AWDX, AWDX, AWDX, AWDX, AWDX, /* 08-0f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 10-17 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 18-1f */
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ASPX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 20-27 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 28-2f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 30-37 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 38-3f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 40-47 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 48-4f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 50-57 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 58-5f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 60-67 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 68-6f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 70-77 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 78-7f */
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AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, /* 80-87 */
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AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, /* 88-8f */
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AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, /* 90-97 */
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AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, /* 98-9f */
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AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, /* a0-a7 */
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AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, /* a8-af */
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AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, /* b0-b7 */
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AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, AWDR, /* b8-bf */
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AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, /* c0-c7 */
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AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, /* c8-cf */
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AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, /* d0-d7 */
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AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, /* d8-df */
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AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, /* e0-e7 */
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AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, /* e8-ef */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* f0-f7 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* f8-ff */
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};
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uchar statec3[256]={ /* looking for 10xxxxxx,10xxxxxx to complete a rune */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 00-07 */
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AWDX, ASPX, ASPNX,AWDX, AWDX, AWDX, AWDX, AWDX, /* 08-0f */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 10-17 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 18-1f */
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ASPX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 20-27 */
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AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 28-2f */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 30-37 */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 38-3f */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 40-47 */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 48-4f */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 50-57 */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 58-5f */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 60-67 */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 68-6f */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 70-77 */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* 78-7f */
|
||||
AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, /* 80-87 */
|
||||
AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, /* 88-8f */
|
||||
AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, /* 90-97 */
|
||||
AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, /* 98-9f */
|
||||
AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, /* a0-a7 */
|
||||
AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, /* a8-af */
|
||||
AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, /* b0-b7 */
|
||||
AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, AC2R, /* b8-bf */
|
||||
AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, /* c0-c7 */
|
||||
AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, /* c8-cf */
|
||||
AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, /* d0-d7 */
|
||||
AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, AC2X, /* d8-df */
|
||||
AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, /* e0-e7 */
|
||||
AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, AC3X, /* e8-ef */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* f0-f7 */
|
||||
AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, AWDX, /* f8-ff */
|
||||
};
|
||||
void
|
||||
count(int f, char *name)
|
||||
{
|
||||
int n;
|
||||
uchar buf[NBUF];
|
||||
uchar *bufp, *ebuf;
|
||||
uchar *state=statesp;
|
||||
|
||||
nline = 0;
|
||||
nword = 0;
|
||||
nrune = 0;
|
||||
nbadr = 0;
|
||||
nchar = 0;
|
||||
|
||||
for(;;){
|
||||
n=read(f, buf, NBUF);
|
||||
if(n<=0)
|
||||
break;
|
||||
nchar+=n;
|
||||
nrune+=n; /* might be too large, gets decreased later */
|
||||
bufp=buf;
|
||||
ebuf=buf+n;
|
||||
do{
|
||||
switch(state[*bufp]){
|
||||
case AC2: state=statec2; break;
|
||||
case AC2R: state=statec2; --nrune; break;
|
||||
case AC2W: state=statec2; nword++; break;
|
||||
case AC2X: state=statec2; nbadr++; break;
|
||||
case AC3: state=statec3; break;
|
||||
case AC3W: state=statec3; nword++; break;
|
||||
case AC3X: state=statec3; nbadr++; break;
|
||||
case ASP: state=statesp; break;
|
||||
case ASPN: state=statesp; nline++; break;
|
||||
case ASPNX: state=statesp; nline++; nbadr++; break;
|
||||
case ASPX: state=statesp; nbadr++; break;
|
||||
case AWD: state=statewd; break;
|
||||
case AWDR: state=statewd; --nrune; break;
|
||||
case AWDW: state=statewd; nword++; break;
|
||||
case AWDWX: state=statewd; nword++; nbadr++; break;
|
||||
case AWDX: state=statewd; nbadr++; break;
|
||||
}
|
||||
}while(++bufp!=ebuf);
|
||||
}
|
||||
if(state!=statesp && state!=statewd)
|
||||
nbadr++;
|
||||
if(n<0)
|
||||
perror(name);
|
||||
report(nline, nword, nrune, nbadr, nchar, name);
|
||||
exits(sts);
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue