tmain() {
UNUSED(argc);
UNUSED(argv);
Sfio_t *f;
char *str, *alpha, *s;
char buf[128];
int n;
str = "0123456789";
alpha = "abcdefghijklmnop";
if (!(f = sfopen(NULL, alpha, "s"))) terror("Opening stream");
for (n = 9; n >= 0; --n) {
if (sfungetc(f, n + '0') != n + '0') terror("Ungetc");
}
if (!(s = sfreserve(f, SF_UNBOUND, 0)) || sfvalue(f) != 10) terror("Peek stream1");
if (strncmp(s, str, 10) != 0) terror("Bad data1");
if (!(s = sfreserve(f, SF_UNBOUND, 0)) || sfvalue(f) != (ssize_t)strlen(alpha)) {
terror("Peek stream2");
}
if (strncmp(s, alpha, strlen(alpha)) != 0) terror("Bad data2");
sfseek(f, (Sfoff_t)0, 0);
for (n = 9; n >= 0; --n) {
if (sfungetc(f, n + '0') != n + '0') terror("Ungetc2");
}
if (sfgetc(f) != '0') terror("Sfgetc");
sfseek(f, (Sfoff_t)0, 0);
if (!(s = sfreserve(f, SF_UNBOUND, 0)) || sfvalue(f) != (ssize_t)strlen(alpha)) {
terror("Peek stream3");
}
if (strncmp(s, alpha, strlen(alpha)) != 0) terror("Bad data2");
sfseek(f, (Sfoff_t)0, 0);
if (sfungetc(f, '0') != '0') terror("Ungetc3");
strcpy(buf, "0123456789\n");
if (!(f = sfopen(f, buf, "s+"))) terror("Reopening string");
if (sfungetc(f, '\n') != '\n') terror("Can't unget new-line2");
if (sfungetc(f, 'd') != 'd') terror("Can't unget d");
if (sfungetc(f, 'c') != 'c') terror("Can't unget c");
if (sfungetc(f, '\n') != '\n') terror("Can't unget new-line");
if (sfungetc(f, 'b') != 'b') terror("Can't unget b");
if (sfungetc(f, 'a') != 'a') terror("Can't unget a");
if (!(s = sfgetr(f, '\n', 1)) || strcmp(s, "ab") != 0) terror("Did not get ab");
if (!(s = sfgetr(f, '\n', 1)) || strcmp(s, "cd") != 0) terror("Did not get cd");
if (!(s = sfgetr(f, '\n', 1)) || strcmp(s, "0123456789") != 0) terror("Did not get 0123456789");
texit(0);
}
int
pzfile(Pz_t* pz)
{
unsigned char* s;
int i;
int j;
size_t n;
/*
* 0 or more nul's mean clean EOF
*/
while (!(i = sfgetc(pz->io)));
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, -1, "%s: pzfile: i=%02x", pz->path, i);
if (i == -1)
return 0;
if (i == PZ_MARK_TAIL)
{
/*
* file trailer
*/
while ((n = sfgetu(pz->io)) && !sferror(pz->io) && !sfeof(pz->io) && (s = (unsigned char*)sfreserve(pz->io, n, 0)))
if (pz->disc->eventf && (*pz->disc->eventf)(pz, PZ_TAILREAD, s, n, pz->disc) < 0)
return -1;
if ((i = sfgetc(pz->io)) == -1)
return 0;
}
j = sfgetc(pz->io);
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, -1, "%s: pzfile: i=%02x j=%02x", pz->path, i, j);
if (i == PZ_MAGIC_1 && j == PZ_MAGIC_2)
{
/*
* next file header
*/
sfungetc(pz->io, j);
sfungetc(pz->io, i);
return pzopen(pz->disc, (char*)pz, PZ_AGAIN) ? 1 : -1;
}
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, 2, "%s: data corrupted", pz->path);
return -1;
}
wint_t
ungetwc(wint_t c, Sfio_t* f)
{
register unsigned char* s = (unsigned char*)&c;
register unsigned char* e = s + sizeof(c);
STDIO_INT(f, "ungetwc", wint_t, (wint_t, Sfio_t*), (c, f))
FWIDE(f, WEOF);
while (s < e)
if (sfungetc(f, *s++) == EOF)
return WEOF;
return c;
}
static int read_tree(Namval_t* np, Sfio_t *iop, int n, Namfun_t *dp)
{
Sfio_t *sp;
char *cp;
int c;
if(n>=0)
return(-1);
while((c = sfgetc(iop)) && isblank(c));
sfungetc(iop,c);
sfprintf(sh.strbuf,"%s=%c",nv_name(np),0);
cp = sfstruse(sh.strbuf);
sp = sfopen((Sfio_t*)0,cp,"s");
sfstack(iop,sp);
c=sh_eval(iop,SH_READEVAL);
return(c);
}
/* is there stuff left? if not, go to next file */
static int advFile(generalStream_s *gs)
{
if (gs->fpLen == -1) {
int c = sfgetc(gs->fp);
if (c == EOF)
return 0;
sfungetc(gs->fp, c);
return 1;
} else {
if (sftell(gs->fp) == gs->fpLen) {
while (++gs->count < gs->numFilesinStream) {
HRSclosefile(gs->fp);
gs->fp = HRSopenfile(gs->fileNames[gs->count], "r");
gs->fpLen = sfsize(gs->fp);
if (gs->fpLen != 0)
return 1;
}
return 0;
}
return 1;
}
}
static void
flatten(const char* path, Sfio_t* ip, Sfio_t* op)
{
register int c;
register int q;
register int p;
register int b;
register char* s;
char tag[256];
b = p = 0;
for (;;)
{
switch (c = sfgetc(ip))
{
case EOF:
break;
case '<':
q = 0;
s = tag;
for (;;)
{
switch (c = sfgetc(ip))
{
case EOF:
return;
case '>':
sfungetc(ip, c);
break;
default:
if (isspace(c))
break;
if (s < &tag[sizeof(tag)-1])
*s++ = islower(c) ? toupper(c) : c;
continue;
}
break;
}
*s = 0;
q = 0;
for (;;)
{
switch (c = sfgetc(ip))
{
case EOF:
return;
case '\'':
case '"':
if (q == c)
q = 0;
else if (q == 0)
q = c;
continue;
case '>':
if (q == 0)
break;
continue;
default:
continue;
}
break;
}
s = tag;
if (s[0] == 'T' && s[1] == 'D' && s[2] == 0)
p = 1;
else if (s[0] == '/' && s[1] == 'T')
{
if (s[2] == 'D' && s[3] == 0)
{
b = p = 0;
sfputc(op, ';');
}
else if (s[2] == 'R' && s[3] == 0)
sfputc(op, '\n');
}
continue;
default:
if (p)
{
if (isspace(c))
{
if (b)
continue;
b = 1;
c = ' ';
}
else
b = 0;
sfputc(op, c);
}
continue;
}
break;
}
}
static int
ncsl(register Sfio_t* sp)
{
register int c;
register int data;
register unsigned long line;
int quote;
line = 0;
data = 0;
again:
for (;;) switch (c = sfgetc(sp))
{
case EOF:
return(line);
case ' ':
case '\f':
case '\t':
break;
case '\n':
newline:
if (data)
{
if (data > 0) line++;
data = 0;
}
break;
case '/':
if (data < 0) goto again;
switch (c = sfgetc(sp))
{
case '/':
for (;;) switch (c = sfgetc(sp))
{
case EOF:
goto again;
case '\n':
goto newline;
default:
if (JUNK(c))
{
data = -1;
goto again;
}
break;
}
break;
case '*':
for (;;) switch (c = sfgetc(sp))
{
case EOF:
case '*':
for (;;)
{
switch (c = sfgetc(sp))
{
case EOF:
case '/':
goto again;
case '*':
continue;
default:
if (JUNK(c))
{
data = -1;
goto again;
}
break;
}
break;
}
break;
default:
if (JUNK(c))
{
data = -1;
goto again;
}
break;
}
break;
case EOF:
break;
default:
if (!data) data = 1;
sfungetc(sp, c);
break;
}
break;
case '"':
case '\'':
if (data < 0) goto again;
data = 1;
quote = c;
for (;;) switch (c = sfgetc(sp))
{
case EOF:
goto again;
case '"':
case '\'':
if (c == quote) goto again;
break;
case '\n':
goto newline;
case '\\':
switch (c = sfgetc(sp))
{
case EOF:
goto again;
case '\n':
line++;
continue;
}
/*FALLTHROUGH*/
default:
if (JUNK(c))
{
data = -1;
goto again;
}
break;
}
break;
default:
if (JUNK(c)) data = -1;
else if (!data) data = 1;
break;
}
/*NOTREACHED*/
}
int
pzinflate(register Pz_t* pz, Sfio_t* op)
{
register Pzpart_t* pp;
register int i;
register int j;
register int k;
register size_t n;
register size_t m;
register unsigned char* pat;
ssize_t r;
Pzwrite_f writef;
if (!(pz->flags & PZ_READ))
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, ERROR_SYSTEM|2, "%s: cannot inflate -- not open for read", pz->path);
return -1;
}
if (pz->flags & PZ_SPLIT)
return pzssplit(pz);
if (pz->flags & PZ_FORCE)
{
if (writef = pz->disc->writef)
{
n = pz->part->row;
do
{
if (!(pat = (unsigned char*)sfreserve(pz->io, n, 0)))
{
if (sfvalue(pz->io))
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, 2, "%s: data corrupted", pz->path);
return -1;
}
break;
}
} while ((r = (*writef)(pz, op, pat, pz->disc)) >= 0);
if (r < 0)
return -1;
}
else if (sfmove(pz->io, op, SF_UNBOUND, -1) < 0 || sferror(pz->io))
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, 2, "%s: data corrupted", pz->path);
return -1;
}
if (sfsync(op))
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, 2, "%s: output write error", pz->path);
return -1;
}
return 0;
}
/*
* copy the prefix
*/
if (pz->prefix.count)
{
if (!pz->prefix.skip && pz->prefix.data && sfwrite(op, pz->prefix.data, pz->prefix.count) != pz->prefix.count)
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, 2, "%s: output write error", pz->path);
return -1;
}
pz->prefix.count = 0;
}
if ((pz->split.flags & (PZ_SPLIT_INFLATE|PZ_SPLIT_PART)) == PZ_SPLIT_INFLATE)
i = pzsinflate(pz, op);
else
{
/*
* inflate each file
*/
do
{
/*
* inflate each window
*/
pp = pz->part;
pat = pz->pat;
while (m = sfgetu(pz->io))
{
/*
* hi frequency data in pz->buf
*/
if (pp->nmap)
{
if (m > pz->win || (m % pp->nmap) || sfread(pz->io, pz->buf, m) != m)
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, ERROR_SYSTEM|2, "%s: data corrupted", pz->path);
return -1;
}
n = m / pp->nmap;
m = 0;
j = 0;
k = 0;
for (i = 0; i < pp->nmap; i++)
{
if (i > 0 && pp->lab[i] == pp->lab[i - 1])
j++;
else
j = m;
if (!pp->value || pp->value[i] < 0)
pp->mix[k++] = pz->buf + j;
m += n;
}
}
else if (m != 1)
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, ERROR_SYSTEM|2, "%s: data corrupted", pz->path);
return -1;
}
/*
* lo frequency
*/
m = sfgetu(pz->io);
if (m < pp->row || sfread(pz->io, pat, pp->row) != pp->row)
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, ERROR_SYSTEM|2, "%s: data corrupted", pz->path);
return -1;
}
m -= pp->row;
if (sfread(pz->io, pz->nxt = pz->val, m) != m)
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, ERROR_SYSTEM|2, "%s: data corrupted", pz->path);
return -1;
}
/*
* restore lo+hi on op
*/
if (restore(pz, pp, pz->io, op, pat, pz->wrk, pp->row, k, pp->map, pp->mix, pp->inc))
return -1;
}
if (!(pz->flags & PZ_SECTION))
{
if ((k = sfgetc(pz->io)) == PZ_MARK_PART)
{
if ((m = sfgetu(pz->io)) && !sferror(pz->io) && !sfeof(pz->io) && (pat = (unsigned char*)sfreserve(pz->io, m, 0)))
sfwrite(op, pat, m);
}
else if (k != EOF)
sfungetc(pz->io, k);
}
if (sferror(op))
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, ERROR_SYSTEM|2, "write error");
return -1;
}
} while ((i = !(pz->flags & PZ_SECTION)) && (i = pzfile(pz)) > 0);
}
if (i >= 0 && !(pz->split.flags & PZ_SPLIT_PART) && sfsync(op))
{
if (pz->disc->errorf)
(*pz->disc->errorf)(pz, pz->disc, ERROR_SYSTEM|2, "write error");
return -1;
}
return i;
}
int hist_expand(const char *ln, char **xp)
{
int off, /* stack offset */
q, /* quotation flags */
p, /* flag */
c, /* current char */
flag=0; /* HIST_* flags */
Sfoff_t n, /* history line number, counter, etc. */
i, /* counter */
w[2]; /* word range */
char *sp, /* stack pointer */
*cp, /* current char in ln */
*str, /* search string */
*evp, /* event/word designator string, for error msgs */
*cc=0, /* copy of current line up to cp; temp ptr */
hc[3], /* default histchars */
*qc="\'\"`"; /* quote characters */
Sfio_t *ref=0, /* line referenced by event designator */
*tmp=0, /* temporary line buffer */
*tmp2=0;/* temporary line buffer */
Histloc_t hl; /* history location */
static Namval_t *np = 0; /* histchars variable */
static struct subst sb = {0,0}; /* substition strings */
static Sfio_t *wm=0; /* word match from !?string? event designator */
if(!wm)
wm = sfopen(NULL, NULL, "swr");
hc[0] = '!';
hc[1] = '^';
hc[2] = 0;
if((np = nv_open("histchars",sh.var_tree,0)) && (cp = nv_getval(np)))
{
if(cp[0])
{
hc[0] = cp[0];
if(cp[1])
{
hc[1] = cp[1];
if(cp[2])
hc[2] = cp[2];
}
}
}
/* save shell stack */
if(off = staktell())
sp = stakfreeze(0);
cp = (char*)ln;
while(cp && *cp)
{
/* read until event/quick substitution/comment designator */
if((*cp != hc[0] && *cp != hc[1] && *cp != hc[2])
|| (*cp == hc[1] && cp != ln))
{
if(*cp == '\\') /* skip escaped designators */
stakputc(*cp++);
else if(*cp == '\'') /* skip quoted designators */
{
do
stakputc(*cp);
while(*++cp && *cp != '\'');
}
stakputc(*cp++);
continue;
}
if(hc[2] && *cp == hc[2]) /* history comment designator, skip rest of line */
{
stakputc(*cp++);
stakputs(cp);
DONE();
}
n = -1;
str = 0;
flag &= HIST_EVENT; /* save event flag for returning later */
evp = cp;
ref = 0;
if(*cp == hc[1]) /* shortcut substitution */
{
flag |= HIST_QUICKSUBST;
goto getline;
}
if(*cp == hc[0] && *(cp+1) == hc[0]) /* refer to line -1 */
{
cp += 2;
goto getline;
}
switch(c = *++cp) {
case ' ':
case '\t':
case '\n':
case '\0':
case '=':
case '(':
stakputc(hc[0]);
continue;
case '#': /* the line up to current position */
flag |= HIST_HASH;
cp++;
n = staktell(); /* terminate string and dup */
stakputc('\0');
cc = strdup(stakptr(0));
stakseek(n); /* remove null byte again */
ref = sfopen(ref, cc, "s"); /* open as file */
n = 0; /* skip history file referencing */
break;
case '-': /* back reference by number */
if(!isdigit(*(cp+1)))
goto string_event;
cp++;
case '0': /* reference by number */
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
n = 0;
while(isdigit(*cp))
n = n * 10 + (*cp++) - '0';
if(c == '-')
n = -n;
break;
case '$':
n = -1;
case ':':
break;
case '?':
cp++;
flag |= HIST_QUESTION;
string_event:
default:
/* read until end of string or word designator/modifier */
str = cp;
while(*cp)
{
cp++;
if((!(flag&HIST_QUESTION) &&
(*cp == ':' || isspace(*cp)
|| *cp == '^' || *cp == '$'
|| *cp == '*' || *cp == '-'
|| *cp == '%')
)
|| ((flag&HIST_QUESTION) && (*cp == '?' || *cp == '\n')))
{
c = *cp;
*cp = '\0';
}
}
break;
}
getline:
flag |= HIST_EVENT;
if(str) /* !string or !?string? event designator */
{
/* search history for string */
hl = hist_find(shgd->hist_ptr, str,
shgd->hist_ptr->histind,
flag&HIST_QUESTION, -1);
if((n = hl.hist_command) == -1)
n = 0; /* not found */
}
if(n)
{
if(n < 0) /* determine index for backref */
n = shgd->hist_ptr->histind + n;
/* search and use history file if found */
if(n > 0 && hist_seek(shgd->hist_ptr, n) != -1)
ref = shgd->hist_ptr->histfp;
}
if(!ref)
{
/* string not found or command # out of range */
c = *cp;
*cp = '\0';
errormsg(SH_DICT, ERROR_ERROR, "%s: event not found", evp);
*cp = c;
DONE();
}
if(str) /* string search: restore orig. line */
{
if(flag&HIST_QUESTION)
*cp++ = c; /* skip second question mark */
else
*cp = c;
}
/* colon introduces either word designators or modifiers */
if(*(evp = cp) == ':')
cp++;
w[0] = 0; /* -1 means last word, -2 means match from !?string? */
w[1] = -1; /* -1 means last word, -2 means suppress last word */
if(flag & HIST_QUICKSUBST) /* shortcut substitution */
goto getsel;
n = 0;
while(n < 2)
{
switch(c = *cp++) {
case '^': /* first word */
if(n == 0)
{
w[0] = w[1] = 1;
goto skip;
}
else
goto skip2;
case '$': /* last word */
w[n] = -1;
goto skip;
case '%': /* match from !?string? event designator */
if(n == 0)
{
if(!str)
{
w[0] = 0;
w[1] = -1;
ref = wm;
}
else
{
w[0] = -2;
w[1] = sftell(ref) + hl.hist_char;
}
sfseek(wm, 0, SEEK_SET);
goto skip;
}
default:
skip2:
cp--;
n = 2;
break;
case '*': /* until last word */
if(n == 0)
w[0] = 1;
w[1] = -1;
skip:
flag |= HIST_WORDDSGN;
n = 2;
break;
case '-': /* until last word or specified index */
w[1] = -2;
flag |= HIST_WORDDSGN;
n = 1;
break;
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9': /* specify index */
if((*evp == ':') || w[1] == -2)
{
w[n] = c - '0';
while(isdigit(c=*cp++))
w[n] = w[n] * 10 + c - '0';
flag |= HIST_WORDDSGN;
if(n == 0)
w[1] = w[0];
n++;
}
else
n = 2;
cp--;
break;
}
}
if(w[0] != -2 && w[1] > 0 && w[0] > w[1])
{
c = *cp;
*cp = '\0';
errormsg(SH_DICT, ERROR_ERROR, "%s: bad word specifier", evp);
*cp = c;
DONE();
}
/* no valid word designator after colon, rewind */
if(!(flag & HIST_WORDDSGN) && (*evp == ':'))
cp = evp;
getsel:
/* open temp buffer, let sfio do the (re)allocation */
tmp = sfopen(NULL, NULL, "swr");
/* push selected words into buffer, squash
whitespace into single blank or a newline */
n = i = q = 0;
while((c = sfgetc(ref)) > 0)
{
if(isspace(c))
{
flag |= (c == '\n' ? HIST_NEWLINE : 0);
continue;
}
if(n >= w[0] && ((w[0] != -2) ? (w[1] < 0 || n <= w[1]) : 1))
{
if(w[0] < 0)
sfseek(tmp, 0, SEEK_SET);
else
i = sftell(tmp);
if(i > 0)
sfputc(tmp, flag & HIST_NEWLINE ? '\n' : ' ');
flag &= ~HIST_NEWLINE;
p = 1;
}
else
p = 0;
do
{
cc = strchr(qc, c);
q ^= cc ? 1<<(int)(cc - qc) : 0;
if(p)
sfputc(tmp, c);
}
while((c = sfgetc(ref)) > 0 && (!isspace(c) || q));
if(w[0] == -2 && sftell(ref) > w[1])
break;
flag |= (c == '\n' ? HIST_NEWLINE : 0);
n++;
}
if(w[0] != -2 && w[1] >= 0 && w[1] >= n)
{
c = *cp;
*cp = '\0';
errormsg(SH_DICT, ERROR_ERROR, "%s: bad word specifier", evp);
*cp = c;
DONE();
}
else if(w[1] == -2) /* skip last word */
sfseek(tmp, i, SEEK_SET);
/* remove trailing newline */
if(sftell(tmp))
{
sfseek(tmp, -1, SEEK_CUR);
if(sfgetc(tmp) == '\n')
sfungetc(tmp, '\n');
}
sfputc(tmp, '\0');
if(str)
{
if(wm)
sfclose(wm);
wm = tmp;
}
if(cc && (flag&HIST_HASH))
{
/* close !# temp file */
sfclose(ref);
flag &= ~HIST_HASH;
free(cc);
cc = 0;
}
evp = cp;
/* selected line/words are now in buffer, now go for the modifiers */
while(*cp == ':' || (flag & HIST_QUICKSUBST))
{
if(flag & HIST_QUICKSUBST)
{
flag &= ~HIST_QUICKSUBST;
c = 's';
cp--;
}
else
c = *++cp;
sfseek(tmp, 0, SEEK_SET);
tmp2 = sfopen(tmp2, NULL, "swr");
if(c == 'g') /* global substitution */
{
flag |= HIST_GLOBALSUBST;
c = *++cp;
}
if(cc = strchr(modifiers, c))
flag |= mod_flags[cc - modifiers];
else
{
errormsg(SH_DICT, ERROR_ERROR, "%c: unrecognized history modifier", c);
DONE();
}
if(c == 'h' || c == 'r') /* head or base */
{
n = -1;
while((c = sfgetc(tmp)) > 0)
{ /* remember position of / or . */
if((c == '/' && *cp == 'h') || (c == '.' && *cp == 'r'))
n = sftell(tmp2);
sfputc(tmp2, c);
}
if(n > 0)
{ /* rewind to last / or . */
sfseek(tmp2, n, SEEK_SET);
/* end string there */
sfputc(tmp2, '\0');
}
}
else if(c == 't' || c == 'e') /* tail or suffix */
{
n = 0;
while((c = sfgetc(tmp)) > 0)
{ /* remember position of / or . */
if((c == '/' && *cp == 't') || (c == '.' && *cp == 'e'))
n = sftell(tmp);
}
/* rewind to last / or . */
sfseek(tmp, n, SEEK_SET);
/* copy from there on */
while((c = sfgetc(tmp)) > 0)
sfputc(tmp2, c);
}
else if(c == 's' || c == '&')
{
cp++;
if(c == 's')
{
/* preset old with match from !?string? */
if(!sb.str[0] && wm)
sb.str[0] = strdup(sfsetbuf(wm, (Void_t*)1, 0));
cp = parse_subst(cp, &sb);
}
if(!sb.str[0] || !sb.str[1])
{
c = *cp;
*cp = '\0';
errormsg(SH_DICT, ERROR_ERROR,
"%s%s: no previous substitution",
(flag & HIST_QUICKSUBST) ? ":s" : "",
evp);
*cp = c;
DONE();
}
/* need pointer for strstr() */
str = sfsetbuf(tmp, (Void_t*)1, 0);
flag |= HIST_SUBSTITUTE;
while(flag & HIST_SUBSTITUTE)
{
/* find string */
if(cc = strstr(str, sb.str[0]))
{ /* replace it */
c = *cc;
*cc = '\0';
sfputr(tmp2, str, -1);
sfputr(tmp2, sb.str[1], -1);
*cc = c;
str = cc + strlen(sb.str[0]);
}
else if(!sftell(tmp2))
{ /* not successfull */
c = *cp;
*cp = '\0';
errormsg(SH_DICT, ERROR_ERROR,
"%s%s: substitution failed",
(flag & HIST_QUICKSUBST) ? ":s" : "",
evp);
*cp = c;
DONE();
}
/* loop if g modifier specified */
if(!cc || !(flag & HIST_GLOBALSUBST))
flag &= ~HIST_SUBSTITUTE;
}
/* output rest of line */
sfputr(tmp2, str, -1);
if(*cp)
cp--;
}
if(sftell(tmp2))
{ /* if any substitions done, swap buffers */
if(wm != tmp)
sfclose(tmp);
tmp = tmp2;
tmp2 = 0;
}
cc = 0;
if(*cp)
cp++;
}
/* flush temporary buffer to stack */
if(tmp)
{
sfseek(tmp, 0, SEEK_SET);
if(flag & HIST_QUOTE)
stakputc('\'');
while((c = sfgetc(tmp)) > 0)
{
if(isspace(c))
{
flag = flag & ~HIST_NEWLINE;
/* squash white space to either a
blank or a newline */
do
flag |= (c == '\n' ? HIST_NEWLINE : 0);
while((c = sfgetc(tmp)) > 0 && isspace(c));
sfungetc(tmp, c);
c = (flag & HIST_NEWLINE) ? '\n' : ' ';
if(flag & HIST_QUOTE_BR)
{
stakputc('\'');
stakputc(c);
stakputc('\'');
}
else
stakputc(c);
}
else if((c == '\'') && (flag & HIST_QUOTE))
{
stakputc('\'');
stakputc('\\');
stakputc(c);
stakputc('\'');
}
else
stakputc(c);
}
if(flag & HIST_QUOTE)
stakputc('\'');
}
}
stakputc('\0');
done:
if(cc && (flag&HIST_HASH))
{
/* close !# temp file */
sfclose(ref);
free(cc);
cc = 0;
}
/* error? */
if(staktell() && !(flag & HIST_ERROR))
*xp = strdup(stakfreeze(1));
/* restore shell stack */
if(off)
stakset(sp,off);
else
stakseek(0);
/* drop temporary files */
if(tmp && tmp != wm)
sfclose(tmp);
if(tmp2)
sfclose(tmp2);
return (flag & HIST_ERROR ? HIST_ERROR : flag & HIST_FLAG_RETURN_MASK);
}
