/* these are unrolled below in the CCC_TRY_XXX defined */
#define LOAD_UTF8_CHARCLASS(class,str) STMT_START { \
if (!CAT2(PL_utf8_,class)) { bool ok; ENTER; save_re_context(); ok=CAT2(is_utf8_,class)((const U8*)str); assert(ok); LEAVE; } } STMT_END
+
+/* Doesn't do an assert to verify that is correct */
+#define LOAD_UTF8_CHARCLASS_NO_CHECK(class) STMT_START { \
+ if (!CAT2(PL_utf8_,class)) { bool ok; ENTER; save_re_context(); ok=CAT2(is_utf8_,class)((const U8*)" "); LEAVE; } } STMT_END
+
#define LOAD_UTF8_CHARCLASS_ALNUM() LOAD_UTF8_CHARCLASS(alnum,"a")
#define LOAD_UTF8_CHARCLASS_DIGIT() LOAD_UTF8_CHARCLASS(digit,"0")
#define LOAD_UTF8_CHARCLASS_SPACE() LOAD_UTF8_CHARCLASS(space," ")
-#define LOAD_UTF8_CHARCLASS_MARK() LOAD_UTF8_CHARCLASS(mark, "\xcd\x86")
+#define LOAD_UTF8_CHARCLASS_GCB() /* Grapheme cluster boundaries */ \
+ LOAD_UTF8_CHARCLASS(X_begin, " "); \
+ LOAD_UTF8_CHARCLASS(X_non_hangul, "A"); \
+ /* These are utf8 constants, and not utf-ebcdic constants, so the \
+ * assert should likely and hopefully fail on an EBCDIC machine */ \
+ LOAD_UTF8_CHARCLASS(X_extend, "\xcc\x80"); /* U+0300 */ \
+ \
+ /* No asserts are done for these, in case called on an early \
+ * Unicode version in which they map to nothing */ \
+ LOAD_UTF8_CHARCLASS_NO_CHECK(X_prepend);/* U+0E40 "\xe0\xb9\x80" */ \
+ LOAD_UTF8_CHARCLASS_NO_CHECK(X_L); /* U+1100 "\xe1\x84\x80" */ \
+ LOAD_UTF8_CHARCLASS_NO_CHECK(X_LV); /* U+AC00 "\xea\xb0\x80" */ \
+ LOAD_UTF8_CHARCLASS_NO_CHECK(X_LVT); /* U+AC01 "\xea\xb0\x81" */ \
+ LOAD_UTF8_CHARCLASS_NO_CHECK(X_LV_LVT_V);/* U+AC01 "\xea\xb0\x81" */\
+ LOAD_UTF8_CHARCLASS_NO_CHECK(X_T); /* U+11A8 "\xe1\x86\xa8" */ \
+ LOAD_UTF8_CHARCLASS_NO_CHECK(X_V) /* U+1160 "\xe1\x85\xa0" */
/*
We dont use PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS as the direct test
LEAVE; \
} \
if (!(OP(scan) == NAME \
- ? (bool)swash_fetch(CAT2(PL_utf8_,CLASS), (U8*)locinput, do_utf8) \
+ ? cBOOL(swash_fetch(CAT2(PL_utf8_,CLASS), (U8*)locinput, do_utf8)) \
: LCFUNC_utf8((U8*)locinput))) \
{ \
sayNO; \
LEAVE; \
} \
if ((OP(scan) == NAME \
- ? (bool)swash_fetch(CAT2(PL_utf8_,CLASS), (U8*)locinput, do_utf8) \
+ ? cBOOL(swash_fetch(CAT2(PL_utf8_,CLASS), (U8*)locinput, do_utf8)) \
: LCFUNC_utf8((U8*)locinput))) \
{ \
sayNO; \
if ( (CoNd) \
&& (ln == len || \
!ibcmp_utf8(s, &my_strend, 0, do_utf8, \
- m, NULL, ln, (bool)UTF)) \
+ m, NULL, ln, cBOOL(UTF))) \
&& (!reginfo || regtry(reginfo, &s)) ) \
goto got_it; \
else { \
&& (f == c1 || f == c2) \
&& (ln == len || \
!ibcmp_utf8(s, &my_strend, 0, do_utf8,\
- m, NULL, ln, (bool)UTF)) \
+ m, NULL, ln, cBOOL(UTF)))\
&& (!reginfo || regtry(reginfo, &s)) ) \
goto got_it; \
} \
LOAD_UTF8_CHARCLASS_ALNUM();
REXEC_FBC_UTF8_SCAN(
if (tmp == !(OP(c) == BOUND ?
- (bool)swash_fetch(PL_utf8_alnum, (U8*)s, do_utf8) :
+ cBOOL(swash_fetch(PL_utf8_alnum, (U8*)s, do_utf8)) :
isALNUM_LC_utf8((U8*)s)))
{
tmp = !tmp;
LOAD_UTF8_CHARCLASS_ALNUM();
REXEC_FBC_UTF8_SCAN(
if (tmp == !(OP(c) == NBOUND ?
- (bool)swash_fetch(PL_utf8_alnum, (U8*)s, do_utf8) :
+ cBOOL(swash_fetch(PL_utf8_alnum, (U8*)s, do_utf8)) :
isALNUM_LC_utf8((U8*)s)))
tmp = !tmp;
else REXEC_FBC_TRYIT;
I32 end_shift = 0; /* Same for the end. */ /* CC */
I32 scream_pos = -1; /* Internal iterator of scream. */
char *scream_olds = NULL;
- const bool do_utf8 = (bool)DO_UTF8(sv);
+ const bool do_utf8 = cBOOL(DO_UTF8(sv));
I32 multiline;
RXi_GET_DECL(prog,progi);
regmatch_info reginfo; /* create some info to pass to regtry etc */
const char * const l = locinput;
char *e = PL_regeol;
- if (ibcmp_utf8(s, 0, ln, (bool)UTF,
+ if (ibcmp_utf8(s, 0, ln, cBOOL(UTF),
l, &e, 0, do_utf8)) {
/* One more case for the sharp s:
* pack("U0U*", 0xDF) =~ /ss/i,
CCC_TRY_AFF( DIGIT, DIGITL, posix_digit, "0", isDIGIT_LC_utf8, isDIGIT, isDIGIT_LC);
CCC_TRY_NEG(NDIGIT, NDIGITL, posix_digit, "0", isDIGIT_LC_utf8, isDIGIT, isDIGIT_LC);
- case CLUMP:
+ case CLUMP: /* Match \X: logical Unicode character. This is defined as
+ a Unicode extended Grapheme Cluster */
+ /* From http://www.unicode.org/reports/tr29 (5.2 version). An
+ extended Grapheme Cluster is:
+
+ CR LF
+ | Prepend* Begin Extend*
+ | .
+
+ Begin is (Hangul-syllable | ! Control)
+ Extend is (Grapheme_Extend | Spacing_Mark)
+ Control is [ GCB_Control CR LF ]
+
+ The discussion below shows how the code for CLUMP is derived
+ from this regex. Note that most of these concepts are from
+ property values of the Grapheme Cluster Boundary (GCB) property.
+ No code point can have multiple property values for a given
+ property. Thus a code point in Prepend can't be in Control, but
+ it must be in !Control. This is why Control above includes
+ GCB_Control plus CR plus LF. The latter two are used in the GCB
+ property separately, and so can't be in GCB_Control, even though
+ they logically are controls. Control is not the same as gc=cc,
+ but includes format and other characters as well.
+
+ The Unicode definition of Hangul-syllable is:
+ L+
+ | (L* ( ( V | LV ) V* | LVT ) T*)
+ | T+
+ )
+ Each of these is a value for the GCB property, and hence must be
+ disjoint, so the order they are tested is immaterial, so the
+ above can safely be changed to
+ T+
+ | L+
+ | (L* ( LVT | ( V | LV ) V*) T*)
+
+ The last two terms can be combined like this:
+ L* ( L
+ | (( LVT | ( V | LV ) V*) T*))
+
+ And refactored into this:
+ L* (L | LVT T* | V V* T* | LV V* T*)
+
+ That means that if we have seen any L's at all we can quit
+ there, but if the next character is a LVT, a V or and LV we
+ should keep going.
+
+ There is a subtlety with Prepend* which showed up in testing.
+ Note that the Begin, and only the Begin is required in:
+ | Prepend* Begin Extend*
+ Also, Begin contains '! Control'. A Prepend must be a '!
+ Control', which means it must be a Begin. What it comes down to
+ is that if we match Prepend* and then find no suitable Begin
+ afterwards, that if we backtrack the last Prepend, that one will
+ be a suitable Begin.
+ */
+
if (locinput >= PL_regeol)
sayNO;
- if (do_utf8) {
- LOAD_UTF8_CHARCLASS_MARK();
- if (swash_fetch(PL_utf8_mark,(U8*)locinput, do_utf8))
- sayNO;
- locinput += PL_utf8skip[nextchr];
- while (locinput < PL_regeol &&
- swash_fetch(PL_utf8_mark,(U8*)locinput, do_utf8))
- locinput += UTF8SKIP(locinput);
- if (locinput > PL_regeol)
- sayNO;
- }
- else
- locinput++;
+ if (! do_utf8) {
+
+ /* Match either CR LF or '.', as all the other possibilities
+ * require utf8 */
+ locinput++; /* Match the . or CR */
+ if (nextchr == '\r'
+ && locinput < PL_regeol
+ && UCHARAT(locinput) == '\n') locinput++;
+ }
+ else {
+
+ /* Utf8: See if is ( CR LF ); already know that locinput <
+ * PL_regeol, so locinput+1 is in bounds */
+ if (nextchr == '\r' && UCHARAT(locinput + 1) == '\n') {
+ locinput += 2;
+ }
+ else {
+ /* In case have to backtrack to beginning, then match '.' */
+ char *starting = locinput;
+
+ /* In case have to backtrack the last prepend */
+ char *previous_prepend = 0;
+
+ LOAD_UTF8_CHARCLASS_GCB();
+
+ /* Match (prepend)* */
+ while (locinput < PL_regeol
+ && swash_fetch(PL_utf8_X_prepend,
+ (U8*)locinput, do_utf8))
+ {
+ previous_prepend = locinput;
+ locinput += UTF8SKIP(locinput);
+ }
+
+ /* As noted above, if we matched a prepend character, but
+ * the next thing won't match, back off the last prepend we
+ * matched, as it is guaranteed to match the begin */
+ if (previous_prepend
+ && (locinput >= PL_regeol
+ || ! swash_fetch(PL_utf8_X_begin,
+ (U8*)locinput, do_utf8)))
+ {
+ locinput = previous_prepend;
+ }
+
+ /* Note that here we know PL_regeol > locinput, as we
+ * tested that upon input to this switch case, and if we
+ * moved locinput forward, we tested the result just above
+ * and it either passed, or we backed off so that it will
+ * now pass */
+ if (! swash_fetch(PL_utf8_X_begin, (U8*)locinput, do_utf8)) {
+
+ /* Here did not match the required 'Begin' in the
+ * second term. So just match the very first
+ * character, the '.' of the final term of the regex */
+ locinput = starting + UTF8SKIP(starting);
+ } else {
+
+ /* Here is the beginning of a character that can have
+ * an extender. It is either a hangul syllable, or a
+ * non-control */
+ if (swash_fetch(PL_utf8_X_non_hangul,
+ (U8*)locinput, do_utf8))
+ {
+
+ /* Here not a Hangul syllable, must be a
+ * ('! * Control') */
+ locinput += UTF8SKIP(locinput);
+ } else {
+
+ /* Here is a Hangul syllable. It can be composed
+ * of several individual characters. One
+ * possibility is T+ */
+ if (swash_fetch(PL_utf8_X_T,
+ (U8*)locinput, do_utf8))
+ {
+ while (locinput < PL_regeol
+ && swash_fetch(PL_utf8_X_T,
+ (U8*)locinput, do_utf8))
+ {
+ locinput += UTF8SKIP(locinput);
+ }
+ } else {
+
+ /* Here, not T+, but is a Hangul. That means
+ * it is one of the others: L, LV, LVT or V,
+ * and matches:
+ * L* (L | LVT T* | V V* T* | LV V* T*) */
+
+ /* Match L* */
+ while (locinput < PL_regeol
+ && swash_fetch(PL_utf8_X_L,
+ (U8*)locinput, do_utf8))
+ {
+ locinput += UTF8SKIP(locinput);
+ }
+
+ /* Here, have exhausted L*. If the next
+ * character is not an LV, LVT nor V, it means
+ * we had to have at least one L, so matches L+
+ * in the original equation, we have a complete
+ * hangul syllable. Are done. */
+
+ if (locinput < PL_regeol
+ && swash_fetch(PL_utf8_X_LV_LVT_V,
+ (U8*)locinput, do_utf8))
+ {
+
+ /* Otherwise keep going. Must be LV, LVT
+ * or V. See if LVT */
+ if (swash_fetch(PL_utf8_X_LVT,
+ (U8*)locinput, do_utf8))
+ {
+ locinput += UTF8SKIP(locinput);
+ } else {
+
+ /* Must be V or LV. Take it, then
+ * match V* */
+ locinput += UTF8SKIP(locinput);
+ while (locinput < PL_regeol
+ && swash_fetch(PL_utf8_X_V,
+ (U8*)locinput, do_utf8))
+ {
+ locinput += UTF8SKIP(locinput);
+ }
+ }
+
+ /* And any of LV, LVT, or V can be followed
+ * by T* */
+ while (locinput < PL_regeol
+ && swash_fetch(PL_utf8_X_T,
+ (U8*)locinput,
+ do_utf8))
+ {
+ locinput += UTF8SKIP(locinput);
+ }
+ }
+ }
+ }
+
+ /* Match any extender */
+ while (locinput < PL_regeol
+ && swash_fetch(PL_utf8_X_extend,
+ (U8*)locinput, do_utf8))
+ {
+ locinput += UTF8SKIP(locinput);
+ }
+ }
+ }
+ if (locinput > PL_regeol) sayNO;
+ }
nextchr = UCHARAT(locinput);
break;
/* NOTREACHED */
}
/* logical is 1, /(?(?{...})X|Y)/ */
- sw = (bool)SvTRUE(ret);
+ sw = cBOOL(SvTRUE(ret));
logical = 0;
break;
}
/*NOTREACHED*/
case GROUPP:
n = ARG(scan); /* which paren pair */
- sw = (bool)(*PL_reglastparen >= n && PL_regoffs[n].end != -1);
+ sw = cBOOL(*PL_reglastparen >= n && PL_regoffs[n].end != -1);
break;
case NGROUPP:
/* reg_check_named_buff_matched returns 0 for no match */
- sw = (bool)(0 < reg_check_named_buff_matched(rex,scan));
+ sw = cBOOL(0 < reg_check_named_buff_matched(rex,scan));
break;
case INSUBP:
n = ARG(scan);
/* trivial fail */
if (logical) {
logical = 0;
- sw = 1 - (bool)ST.wanted;
+ sw = 1 - cBOOL(ST.wanted);
}
else if (ST.wanted)
sayNO;
case IFMATCH_A: /* body of (?...A) succeeded */
if (ST.logical) {
- sw = (bool)ST.wanted;
+ sw = cBOOL(ST.wanted);
}
else if (!ST.wanted)
sayNO;
if (do_utf8 && !UTF8_IS_INVARIANT(c)) {
c = utf8n_to_uvchr(p, UTF8_MAXBYTES, &len,
- (UTF8_ALLOW_DEFAULT & UTF8_ALLOW_ANYUV) | UTF8_CHECK_ONLY);
- /* see [perl #37836] for UTF8_ALLOW_ANYUV */
+ (UTF8_ALLOW_DEFAULT & UTF8_ALLOW_ANYUV)
+ | UTF8_ALLOW_FFFF | UTF8_CHECK_ONLY);
+ /* see [perl #37836] for UTF8_ALLOW_ANYUV; [perl #38293] for
+ * UTF8_ALLOW_FFFF */
if (len == (STRLEN)-1)
Perl_croak(aTHX_ "Malformed UTF-8 character (fatal)");
}
projects / p5sagit/p5-mst-13.2.git / blobdiff