STATIC I32
add_data(I32 n, char *s)
{
- if (rx->data) {
- Renewc(rx->data,
- sizeof(*rx->data) + sizeof(void*) * (rx->data->count + n - 1),
+ if (regcomp_rx->data) {
+ Renewc(regcomp_rx->data,
+ sizeof(*regcomp_rx->data) + sizeof(void*) * (regcomp_rx->data->count + n - 1),
char, struct reg_data);
- Renew(rx->data->what, rx->data->count + n, U8);
- rx->data->count += n;
+ Renew(regcomp_rx->data->what, regcomp_rx->data->count + n, U8);
+ regcomp_rx->data->count += n;
} else {
- Newc(1207, rx->data, sizeof(*rx->data) + sizeof(void*) * (n - 1),
+ Newc(1207, regcomp_rx->data, sizeof(*regcomp_rx->data) + sizeof(void*) * (n - 1),
char, struct reg_data);
- New(1208, rx->data->what, n, U8);
- rx->data->count = n;
+ New(1208, regcomp_rx->data->what, n, U8);
+ regcomp_rx->data->count = n;
}
- Copy(s, rx->data->what + rx->data->count - n, n, U8);
- return rx->data->count - n;
+ Copy(s, regcomp_rx->data->what + regcomp_rx->data->count - n, n, U8);
+ return regcomp_rx->data->count - n;
}
/*
extralen = 0;
/* First pass: determine size, legality. */
- regparse = exp;
+ regcomp_parse = exp;
regxend = xend;
regnaughty = 0;
regnpar = 1;
r->prelen = xend - exp;
r->precomp = regprecomp;
r->subbeg = r->subbase = NULL;
- rx = r;
+ regcomp_rx = r;
/* Second pass: emit code. */
- regparse = exp;
+ regcomp_parse = exp;
regxend = xend;
regnaughty = 0;
regnpar = 1;
r->reganch |= ROPT_GPOS_SEEN;
if (regseen & REG_SEEN_LOOKBEHIND)
r->reganch |= ROPT_LOOKBEHIND_SEEN;
+ if (regseen & REG_SEEN_EVAL)
+ r->reganch |= ROPT_EVAL_SEEN;
Newz(1002, r->startp, regnpar, char*);
Newz(1002, r->endp, regnpar, char*);
DEBUG_r(regdump(r));
/* Make an OPEN node, if parenthesized. */
if (paren) {
- if (*regparse == '?') {
- regparse++;
- paren = *regparse++;
+ if (*regcomp_parse == '?') {
+ regcomp_parse++;
+ paren = *regcomp_parse++;
ret = NULL; /* For look-ahead/behind. */
switch (paren) {
case '<':
FAIL("lookbehind non-implemented without REGALIGN_STRUCT");
#endif
regseen |= REG_SEEN_LOOKBEHIND;
- if (*regparse == '!')
+ if (*regcomp_parse == '!')
paren = ',';
- if (*regparse != '=' && *regparse != '!')
+ if (*regcomp_parse != '=' && *regcomp_parse != '!')
goto unknown;
- regparse++;
+ regcomp_parse++;
case '=':
case '!':
seen_zerolen++;
FAIL2("Sequence (?%c...) not implemented", (int)paren);
break;
case '#':
- while (*regparse && *regparse != ')')
- regparse++;
- if (*regparse != ')')
+ while (*regcomp_parse && *regcomp_parse != ')')
+ regcomp_parse++;
+ if (*regcomp_parse != ')')
FAIL("Sequence (?#... not terminated");
nextchar();
*flagp = TRYAGAIN;
dTHR;
I32 count = 1, n = 0;
char c;
- char *s = regparse;
+ char *s = regcomp_parse;
SV *sv;
OP_4tree *sop, *rop;
seen_zerolen++;
- while (count && (c = *regparse)) {
- if (c == '\\' && regparse[1])
- regparse++;
+ regseen |= REG_SEEN_EVAL;
+ while (count && (c = *regcomp_parse)) {
+ if (c == '\\' && regcomp_parse[1])
+ regcomp_parse++;
else if (c == '{')
count++;
else if (c == '}')
count--;
- regparse++;
+ regcomp_parse++;
}
- if (*regparse != ')')
+ if (*regcomp_parse != ')')
FAIL("Sequence (?{...}) not terminated or not {}-balanced");
if (!SIZE_ONLY) {
AV *av;
- if (regparse - 1 - s)
- sv = newSVpv(s, regparse - 1 - s);
+ if (regcomp_parse - 1 - s)
+ sv = newSVpv(s, regcomp_parse - 1 - s);
else
sv = newSVpv("", 0);
rop = sv_compile_2op(sv, &sop, "re", &av);
n = add_data(3, "nso");
- rx->data->data[n] = (void*)rop;
- rx->data->data[n+1] = (void*)av;
- rx->data->data[n+2] = (void*)sop;
+ regcomp_rx->data->data[n] = (void*)rop;
+ regcomp_rx->data->data[n+1] = (void*)av;
+ regcomp_rx->data->data[n+2] = (void*)sop;
SvREFCNT_dec(sv);
} else { /* First pass */
if (tainted)
}
case '(':
{
- if (regparse[0] == '?') {
- if (regparse[1] == '=' || regparse[1] == '!'
- || regparse[1] == '<'
- || regparse[1] == '{') { /* Lookahead or eval. */
+ if (regcomp_parse[0] == '?') {
+ if (regcomp_parse[1] == '=' || regcomp_parse[1] == '!'
+ || regcomp_parse[1] == '<'
+ || regcomp_parse[1] == '{') { /* Lookahead or eval. */
I32 flag;
ret = reg_node(LOGICAL);
regtail(ret, reg(1, &flag));
goto insert_if;
}
- } else if (regparse[0] >= '1' && regparse[0] <= '9' ) {
- parno = atoi(regparse++);
+ } else if (regcomp_parse[0] >= '1' && regcomp_parse[0] <= '9' ) {
+ parno = atoi(regcomp_parse++);
- while (isDIGIT(*regparse))
- regparse++;
+ while (isDIGIT(*regcomp_parse))
+ regcomp_parse++;
ret = reganode(GROUPP, parno);
if ((c = *nextchar()) != ')')
FAIL2("Switch (?(number%c not recognized", c);
regtail(ret, ender);
return ret;
} else {
- FAIL2("Unknown condition for (?(%.2s", regparse);
+ FAIL2("Unknown condition for (?(%.2s", regcomp_parse);
}
}
case 0:
FAIL("Sequence (? incomplete");
break;
default:
- --regparse;
- while (*regparse && strchr("iogcmsx", *regparse)) {
- if (*regparse != 'o')
- pmflag(®flags, *regparse);
- ++regparse;
+ --regcomp_parse;
+ while (*regcomp_parse && strchr("iogcmsx", *regcomp_parse)) {
+ if (*regcomp_parse != 'o')
+ pmflag(®flags, *regcomp_parse);
+ ++regcomp_parse;
}
unknown:
- if (*regparse != ')')
- FAIL2("Sequence (?%c...) not recognized", *regparse);
+ if (*regcomp_parse != ')')
+ FAIL2("Sequence (?%c...) not recognized", *regcomp_parse);
nextchar();
*flagp = TRYAGAIN;
return NULL;
br = regbranch(&flags, 1);
if (br == NULL)
return(NULL);
- if (*regparse == '|') {
+ if (*regcomp_parse == '|') {
if (!SIZE_ONLY && extralen) {
reginsert(BRANCHJ, br);
} else
*flagp &= ~HASWIDTH;
*flagp |= flags&SPSTART;
lastbr = br;
- while (*regparse == '|') {
+ while (*regcomp_parse == '|') {
if (!SIZE_ONLY && extralen) {
ender = reganode(LONGJMP,0);
regtail(NEXTOPER(NEXTOPER(lastbr)), ender); /* Append to the previous. */
}
/* Check for proper termination. */
- if (paren && (regparse >= regxend || *nextchar() != ')')) {
+ if (paren && (regcomp_parse >= regxend || *nextchar() != ')')) {
FAIL("unmatched () in regexp");
- } else if (!paren && regparse < regxend) {
- if (*regparse == ')') {
+ } else if (!paren && regcomp_parse < regxend) {
+ if (*regcomp_parse == ')') {
FAIL("unmatched () in regexp");
} else
FAIL("junk on end of regexp"); /* "Can't happen". */
*flagp = WORST; /* Tentatively. */
- regparse--;
+ regcomp_parse--;
nextchar();
- while (regparse < regxend && *regparse != '|' && *regparse != ')') {
+ while (regcomp_parse < regxend && *regcomp_parse != '|' && *regcomp_parse != ')') {
flags &= ~TRYAGAIN;
latest = regpiece(&flags);
if (latest == NULL) {
register char op;
register char *next;
I32 flags;
- char *origparse = regparse;
+ char *origparse = regcomp_parse;
char *maxpos;
I32 min;
I32 max = REG_INFTY;
return(NULL);
}
- op = *regparse;
+ op = *regcomp_parse;
- if (op == '{' && regcurly(regparse)) {
- next = regparse + 1;
+ if (op == '{' && regcurly(regcomp_parse)) {
+ next = regcomp_parse + 1;
maxpos = Nullch;
while (isDIGIT(*next) || *next == ',') {
if (*next == ',') {
if (*next == '}') { /* got one */
if (!maxpos)
maxpos = next;
- regparse++;
- min = atoi(regparse);
+ regcomp_parse++;
+ min = atoi(regcomp_parse);
if (*maxpos == ',')
maxpos++;
else
- maxpos = regparse;
+ maxpos = regcomp_parse;
max = atoi(maxpos);
if (!max && *maxpos != '0')
max = REG_INFTY; /* meaning "infinity" */
else if (max >= REG_INFTY)
FAIL2("Quantifier in {,} bigger than %d", REG_INFTY - 1);
- regparse = next;
+ regcomp_parse = next;
nextchar();
do_curly:
nest_check:
if (dowarn && !SIZE_ONLY && !(flags&HASWIDTH) && max > 10000) {
warn("%.*s matches null string many times",
- regparse - origparse, origparse);
+ regcomp_parse - origparse, origparse);
}
- if (*regparse == '?') {
+ if (*regcomp_parse == '?') {
nextchar();
reginsert(MINMOD, ret);
#ifdef REGALIGN
regtail(ret, ret + 3);
#endif
}
- if (ISMULT2(regparse))
+ if (ISMULT2(regcomp_parse))
FAIL("nested *?+ in regexp");
return(ret);
*flagp = WORST; /* Tentatively. */
tryagain:
- switch (*regparse) {
+ switch (*regcomp_parse) {
case '^':
seen_zerolen++;
nextchar();
ret = reg_node(BOL);
break;
case '$':
- if (regparse[1])
+ if (regcomp_parse[1])
seen_zerolen++;
nextchar();
if (regflags & PMf_MULTILINE)
*flagp |= HASWIDTH|SIMPLE;
break;
case '[':
- regparse++;
+ regcomp_parse++;
ret = regclass();
*flagp |= HASWIDTH|SIMPLE;
break;
*flagp |= TRYAGAIN;
return NULL;
}
- FAIL2("internal urp in regexp at /%s/", regparse);
+ FAIL2("internal urp in regexp at /%s/", regcomp_parse);
/* Supposed to be caught earlier. */
break;
case '{':
- if (!regcurly(regparse)) {
- regparse++;
+ if (!regcurly(regcomp_parse)) {
+ regcomp_parse++;
goto defchar;
}
/* FALL THROUGH */
FAIL("?+*{} follows nothing in regexp");
break;
case '\\':
- switch (*++regparse) {
+ switch (*++regcomp_parse) {
case 'A':
seen_zerolen++;
ret = reg_node(SBOL);
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
{
- I32 num = atoi(regparse);
+ I32 num = atoi(regcomp_parse);
if (num > 9 && num >= regnpar)
goto defchar;
? ((regflags & PMf_LOCALE) ? REFFL : REFF)
: REF, num);
*flagp |= HASWIDTH;
- while (isDIGIT(*regparse))
- regparse++;
- regparse--;
+ while (isDIGIT(*regcomp_parse))
+ regcomp_parse++;
+ regcomp_parse--;
nextchar();
}
}
break;
case '\0':
- if (regparse >= regxend)
+ if (regcomp_parse >= regxend)
FAIL("trailing \\ in regexp");
/* FALL THROUGH */
default:
case '#':
if (regflags & PMf_EXTENDED) {
- while (regparse < regxend && *regparse != '\n') regparse++;
- if (regparse < regxend)
+ while (regcomp_parse < regxend && *regcomp_parse != '\n') regcomp_parse++;
+ if (regcomp_parse < regxend)
goto tryagain;
}
/* FALL THROUGH */
char *oldp, *s;
I32 numlen;
- regparse++;
+ regcomp_parse++;
defchar:
ret = reg_node((regflags & PMf_FOLD)
: EXACT);
s = (char *) OPERAND(ret);
regc(0, s++); /* save spot for len */
- for (len = 0, p = regparse - 1;
+ for (len = 0, p = regcomp_parse - 1;
len < 127 && p < regxend;
len++)
{
regc(ender, s++);
}
loopdone:
- regparse = p - 1;
+ regcomp_parse = p - 1;
nextchar();
if (len < 0)
FAIL("internal disaster in regexp");
ret = reg_node(ANYOF);
for (Class = 0; Class < 33; Class++)
regc(0, s++);
- if (*regparse == '^') { /* Complement of range. */
+ if (*regcomp_parse == '^') { /* Complement of range. */
regnaughty++;
- regparse++;
+ regcomp_parse++;
if (!SIZE_ONLY)
*opnd |= ANYOF_INVERT;
}
} else {
regsize += ANY_SKIP;
}
- if (*regparse == ']' || *regparse == '-')
+ if (*regcomp_parse == ']' || *regcomp_parse == '-')
goto skipcond; /* allow 1st char to be ] or - */
- while (regparse < regxend && *regparse != ']') {
+ while (regcomp_parse < regxend && *regcomp_parse != ']') {
skipcond:
- Class = UCHARAT(regparse++);
- if (Class == '[' && regparse + 1 < regxend &&
+ Class = UCHARAT(regcomp_parse++);
+ if (Class == '[' && regcomp_parse + 1 < regxend &&
/* I smell either [: or [= or [. -- POSIX has been here, right? */
- (*regparse == ':' || *regparse == '=' || *regparse == '.')) {
- char posixccc = *regparse;
- char* posixccs = regparse++;
+ (*regcomp_parse == ':' || *regcomp_parse == '=' || *regcomp_parse == '.')) {
+ char posixccc = *regcomp_parse;
+ char* posixccs = regcomp_parse++;
- while (regparse < regxend && *regparse != posixccc)
- regparse++;
- if (regparse == regxend)
+ while (regcomp_parse < regxend && *regcomp_parse != posixccc)
+ regcomp_parse++;
+ if (regcomp_parse == regxend)
/* Grandfather lone [:, [=, [. */
- regparse = posixccs;
+ regcomp_parse = posixccs;
else {
- regparse++; /* skip over the posixccc */
- if (*regparse == ']') {
+ regcomp_parse++; /* skip over the posixccc */
+ if (*regcomp_parse == ']') {
/* Not Implemented Yet.
* (POSIX Extended Character Classes, that is)
* The text between e.g. [: and :] would start
- * at posixccs + 1 and stop at regparse - 2. */
+ * at posixccs + 1 and stop at regcomp_parse - 2. */
if (dowarn && !SIZE_ONLY)
warn("Character class syntax [%c %c] is reserved for future extensions", posixccc, posixccc);
- regparse++; /* skip over the ending ] */
+ regcomp_parse++; /* skip over the ending ] */
}
}
}
if (Class == '\\') {
- Class = UCHARAT(regparse++);
+ Class = UCHARAT(regcomp_parse++);
switch (Class) {
case 'w':
if (!SIZE_ONLY) {
Class = '\007';
break;
case 'x':
- Class = scan_hex(regparse, 2, &numlen);
- regparse += numlen;
+ Class = scan_hex(regcomp_parse, 2, &numlen);
+ regcomp_parse += numlen;
break;
case 'c':
- Class = UCHARAT(regparse++);
+ Class = UCHARAT(regcomp_parse++);
Class = toCTRL(Class);
break;
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
- Class = scan_oct(--regparse, 3, &numlen);
- regparse += numlen;
+ Class = scan_oct(--regcomp_parse, 3, &numlen);
+ regcomp_parse += numlen;
break;
}
}
}
else {
lastclass = Class;
- if (*regparse == '-' && regparse+1 < regxend &&
- regparse[1] != ']') {
- regparse++;
+ if (*regcomp_parse == '-' && regcomp_parse+1 < regxend &&
+ regcomp_parse[1] != ']') {
+ regcomp_parse++;
range = 1;
continue; /* do it next time */
}
}
lastclass = Class;
}
- if (*regparse != ']')
+ if (*regcomp_parse != ']')
FAIL("unmatched [] in regexp");
nextchar();
/* optimize case-insensitive simple patterns (e.g. /[a-z]/i) */
STATIC char*
nextchar(void)
{
- char* retval = regparse++;
+ char* retval = regcomp_parse++;
for (;;) {
- if (*regparse == '(' && regparse[1] == '?' &&
- regparse[2] == '#') {
- while (*regparse && *regparse != ')')
- regparse++;
- regparse++;
+ if (*regcomp_parse == '(' && regcomp_parse[1] == '?' &&
+ regcomp_parse[2] == '#') {
+ while (*regcomp_parse && *regcomp_parse != ')')
+ regcomp_parse++;
+ regcomp_parse++;
continue;
}
if (regflags & PMf_EXTENDED) {
- if (isSPACE(*regparse)) {
- regparse++;
+ if (isSPACE(*regcomp_parse)) {
+ regcomp_parse++;
continue;
}
- else if (*regparse == '#') {
- while (*regparse && *regparse != '\n')
- regparse++;
- regparse++;
+ else if (*regcomp_parse == '#') {
+ while (*regcomp_parse && *regcomp_parse != '\n')
+ regcomp_parse++;
+ regcomp_parse++;
continue;
}
}
if (r->reganch & ROPT_IMPLICIT)
PerlIO_printf(Perl_debug_log, "implicit ");
PerlIO_printf(Perl_debug_log, "minlen %ld ", (long) r->minlen);
+ if (r->reganch & ROPT_EVAL_SEEN)
+ PerlIO_printf(Perl_debug_log, "with eval ");
PerlIO_printf(Perl_debug_log, "\n");
#endif /* DEBUGGING */
}
projects / p5sagit/p5-mst-13.2.git / blobdiff