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/* inline.h |
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* |
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* Copyright (C) 2012 by Larry Wall and others |
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* |
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* You may distribute under the terms of either the GNU General Public |
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* License or the Artistic License, as specified in the README file. |
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* |
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* This file is a home for static inline functions that cannot go in other |
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* headers files, because they depend on proto.h (included after most other |
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* headers) or struct definitions. |
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* |
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* Each section names the header file that the functions "belong" to. |
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*/ |
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/* ------------------------------- av.h ------------------------------- */ |
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PERL_STATIC_INLINE SSize_t |
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S_av_top_index(pTHX_ AV *av) |
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{ |
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PERL_ARGS_ASSERT_AV_TOP_INDEX; |
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assert(SvTYPE(av) == SVt_PVAV); |
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return AvFILL(av); |
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} |
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/* ------------------------------- cv.h ------------------------------- */ |
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PERL_STATIC_INLINE GV * |
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S_CvGV(pTHX_ CV *sv) |
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{ |
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return CvNAMED(sv) |
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? Perl_cvgv_from_hek(aTHX_ sv) |
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: ((XPVCV*)MUTABLE_PTR(SvANY(sv)))->xcv_gv_u.xcv_gv; |
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} |
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PERL_STATIC_INLINE I32 * |
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S_CvDEPTHp(const CV * const sv) |
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{ |
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assert(SvTYPE(sv) == SVt_PVCV || SvTYPE(sv) == SVt_PVFM); |
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return &((XPVCV*)SvANY(sv))->xcv_depth; |
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} |
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/* |
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CvPROTO returns the prototype as stored, which is not necessarily what |
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the interpreter should be using. Specifically, the interpreter assumes |
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that spaces have been stripped, which has been the case if the prototype |
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was added by toke.c, but is generally not the case if it was added elsewhere. |
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Since we can't enforce the spacelessness at assignment time, this routine |
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provides a temporary copy at parse time with spaces removed. |
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I is the start of the original buffer, I is the length of the |
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prototype and will be updated when this returns. |
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*/ |
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54
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#ifdef PERL_CORE |
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PERL_STATIC_INLINE char * |
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S_strip_spaces(pTHX_ const char * orig, STRLEN * const len) |
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{ |
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SV * tmpsv; |
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char * tmps; |
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tmpsv = newSVpvn_flags(orig, *len, SVs_TEMP); |
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tmps = SvPVX(tmpsv); |
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while ((*len)--) { |
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if (!isSPACE(*orig)) |
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*tmps++ = *orig; |
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orig++; |
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} |
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*tmps = '\0'; |
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*len = tmps - SvPVX(tmpsv); |
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return SvPVX(tmpsv); |
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} |
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#endif |
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73
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/* ------------------------------- mg.h ------------------------------- */ |
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#if defined(PERL_CORE) || defined(PERL_EXT) |
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/* assumes get-magic and stringification have already occurred */ |
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PERL_STATIC_INLINE STRLEN |
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S_MgBYTEPOS(pTHX_ MAGIC *mg, SV *sv, const char *s, STRLEN len) |
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{ |
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assert(mg->mg_type == PERL_MAGIC_regex_global); |
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assert(mg->mg_len != -1); |
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if (mg->mg_flags & MGf_BYTES || !DO_UTF8(sv)) |
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return (STRLEN)mg->mg_len; |
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else { |
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const STRLEN pos = (STRLEN)mg->mg_len; |
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/* Without this check, we may read past the end of the buffer: */ |
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if (pos > sv_or_pv_len_utf8(sv, s, len)) return len+1; |
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return sv_or_pv_pos_u2b(sv, s, pos, NULL); |
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} |
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} |
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#endif |
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93
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/* ------------------------------- pad.h ------------------------------ */ |
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95
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#if defined(PERL_IN_PAD_C) || defined(PERL_IN_OP_C) |
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PERL_STATIC_INLINE bool |
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PadnameIN_SCOPE(const PADNAME * const pn, const U32 seq) |
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{ |
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/* is seq within the range _LOW to _HIGH ? |
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* This is complicated by the fact that PL_cop_seqmax |
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* may have wrapped around at some point */ |
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if (COP_SEQ_RANGE_LOW(pn) == PERL_PADSEQ_INTRO) |
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return FALSE; /* not yet introduced */ |
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if (COP_SEQ_RANGE_HIGH(pn) == PERL_PADSEQ_INTRO) { |
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/* in compiling scope */ |
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if ( |
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(seq > COP_SEQ_RANGE_LOW(pn)) |
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? (seq - COP_SEQ_RANGE_LOW(pn) < (U32_MAX >> 1)) |
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: (COP_SEQ_RANGE_LOW(pn) - seq > (U32_MAX >> 1)) |
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) |
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return TRUE; |
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} |
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else if ( |
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(COP_SEQ_RANGE_LOW(pn) > COP_SEQ_RANGE_HIGH(pn)) |
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? |
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( seq > COP_SEQ_RANGE_LOW(pn) |
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|| seq <= COP_SEQ_RANGE_HIGH(pn)) |
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: ( seq > COP_SEQ_RANGE_LOW(pn) |
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&& seq <= COP_SEQ_RANGE_HIGH(pn)) |
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) |
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return TRUE; |
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return FALSE; |
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} |
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#endif |
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128
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/* ------------------------------- pp.h ------------------------------- */ |
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130
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PERL_STATIC_INLINE I32 |
131
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S_TOPMARK(pTHX) |
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{ |
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DEBUG_s(DEBUG_v(PerlIO_printf(Perl_debug_log, |
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"MARK top %p %" IVdf "\n", |
135
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PL_markstack_ptr, |
136
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(IV)*PL_markstack_ptr))); |
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return *PL_markstack_ptr; |
138
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} |
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140
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PERL_STATIC_INLINE I32 |
141
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138
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S_POPMARK(pTHX) |
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{ |
143
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DEBUG_s(DEBUG_v(PerlIO_printf(Perl_debug_log, |
144
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"MARK pop %p %" IVdf "\n", |
145
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(PL_markstack_ptr-1), |
146
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(IV)*(PL_markstack_ptr-1)))); |
147
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assert((PL_markstack_ptr > PL_markstack) || !"MARK underflow"); |
148
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138
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return *PL_markstack_ptr--; |
149
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} |
150
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151
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/* ----------------------------- regexp.h ----------------------------- */ |
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153
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PERL_STATIC_INLINE struct regexp * |
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S_ReANY(const REGEXP * const re) |
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{ |
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assert(isREGEXP(re)); |
157
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return re->sv_u.svu_rx; |
158
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} |
159
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160
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/* ------------------------------- sv.h ------------------------------- */ |
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162
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PERL_STATIC_INLINE SV * |
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S_SvREFCNT_inc(SV *sv) |
164
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{ |
165
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if (LIKELY(sv != NULL)) |
166
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SvREFCNT(sv)++; |
167
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return sv; |
168
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} |
169
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PERL_STATIC_INLINE SV * |
170
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S_SvREFCNT_inc_NN(SV *sv) |
171
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{ |
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SvREFCNT(sv)++; |
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return sv; |
174
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} |
175
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PERL_STATIC_INLINE void |
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S_SvREFCNT_inc_void(SV *sv) |
177
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{ |
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if (LIKELY(sv != NULL)) |
179
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SvREFCNT(sv)++; |
180
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} |
181
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PERL_STATIC_INLINE void |
182
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S_SvREFCNT_dec(pTHX_ SV *sv) |
183
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{ |
184
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if (LIKELY(sv != NULL)) { |
185
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U32 rc = SvREFCNT(sv); |
186
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if (LIKELY(rc > 1)) |
187
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SvREFCNT(sv) = rc - 1; |
188
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else |
189
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Perl_sv_free2(aTHX_ sv, rc); |
190
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} |
191
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} |
192
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193
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PERL_STATIC_INLINE void |
194
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S_SvREFCNT_dec_NN(pTHX_ SV *sv) |
195
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{ |
196
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U32 rc = SvREFCNT(sv); |
197
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if (LIKELY(rc > 1)) |
198
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SvREFCNT(sv) = rc - 1; |
199
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else |
200
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Perl_sv_free2(aTHX_ sv, rc); |
201
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} |
202
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203
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PERL_STATIC_INLINE void |
204
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SvAMAGIC_on(SV *sv) |
205
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{ |
206
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assert(SvROK(sv)); |
207
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if (SvOBJECT(SvRV(sv))) HvAMAGIC_on(SvSTASH(SvRV(sv))); |
208
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} |
209
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PERL_STATIC_INLINE void |
210
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SvAMAGIC_off(SV *sv) |
211
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{ |
212
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if (SvROK(sv) && SvOBJECT(SvRV(sv))) |
213
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HvAMAGIC_off(SvSTASH(SvRV(sv))); |
214
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} |
215
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216
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PERL_STATIC_INLINE U32 |
217
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S_SvPADSTALE_on(SV *sv) |
218
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{ |
219
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assert(!(SvFLAGS(sv) & SVs_PADTMP)); |
220
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return SvFLAGS(sv) |= SVs_PADSTALE; |
221
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} |
222
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PERL_STATIC_INLINE U32 |
223
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S_SvPADSTALE_off(SV *sv) |
224
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{ |
225
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assert(!(SvFLAGS(sv) & SVs_PADTMP)); |
226
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return SvFLAGS(sv) &= ~SVs_PADSTALE; |
227
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} |
228
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#if defined(PERL_CORE) || defined (PERL_EXT) |
229
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PERL_STATIC_INLINE STRLEN |
230
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S_sv_or_pv_pos_u2b(pTHX_ SV *sv, const char *pv, STRLEN pos, STRLEN *lenp) |
231
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{ |
232
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PERL_ARGS_ASSERT_SV_OR_PV_POS_U2B; |
233
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if (SvGAMAGIC(sv)) { |
234
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U8 *hopped = utf8_hop((U8 *)pv, pos); |
235
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if (lenp) *lenp = (STRLEN)(utf8_hop(hopped, *lenp) - hopped); |
236
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return (STRLEN)(hopped - (U8 *)pv); |
237
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} |
238
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return sv_pos_u2b_flags(sv,pos,lenp,SV_CONST_RETURN); |
239
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} |
240
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#endif |
241
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242
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/* ------------------------------- handy.h ------------------------------- */ |
243
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244
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/* saves machine code for a common noreturn idiom typically used in Newx*() */ |
245
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#ifdef GCC_DIAG_PRAGMA |
246
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GCC_DIAG_IGNORE(-Wunused-function) /* Intentionally left semicolonless. */ |
247
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#endif |
248
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static void |
249
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0
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S_croak_memory_wrap(void) |
250
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{ |
251
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0
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Perl_croak_nocontext("%s",PL_memory_wrap); |
252
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} |
253
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#ifdef GCC_DIAG_PRAGMA |
254
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GCC_DIAG_RESTORE /* Intentionally left semicolonless. */ |
255
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#endif |
256
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257
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/* ------------------------------- utf8.h ------------------------------- */ |
258
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259
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/* |
260
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=head1 Unicode Support |
261
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*/ |
262
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263
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PERL_STATIC_INLINE void |
264
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S_append_utf8_from_native_byte(const U8 byte, U8** dest) |
265
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{ |
266
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/* Takes an input 'byte' (Latin1 or EBCDIC) and appends it to the UTF-8 |
267
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* encoded string at '*dest', updating '*dest' to include it */ |
268
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269
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PERL_ARGS_ASSERT_APPEND_UTF8_FROM_NATIVE_BYTE; |
270
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271
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if (NATIVE_BYTE_IS_INVARIANT(byte)) |
272
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*((*dest)++) = byte; |
273
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else { |
274
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*((*dest)++) = UTF8_EIGHT_BIT_HI(byte); |
275
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*((*dest)++) = UTF8_EIGHT_BIT_LO(byte); |
276
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} |
277
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} |
278
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279
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/* |
280
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=for apidoc valid_utf8_to_uvchr |
281
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Like C>, but should only be called when it is known that |
282
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the next character in the input UTF-8 string C is well-formed (I, |
283
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it passes C>. Surrogates, non-character code points, and |
284
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non-Unicode code points are allowed. |
285
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286
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=cut |
287
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288
|
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|
*/ |
289
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290
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|
PERL_STATIC_INLINE UV |
291
|
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|
|
|
|
Perl_valid_utf8_to_uvchr(const U8 *s, STRLEN *retlen) |
292
|
|
|
|
|
|
|
{ |
293
|
|
|
|
|
|
|
const UV expectlen = UTF8SKIP(s); |
294
|
|
|
|
|
|
|
const U8* send = s + expectlen; |
295
|
|
|
|
|
|
|
UV uv = *s; |
296
|
|
|
|
|
|
|
|
297
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_VALID_UTF8_TO_UVCHR; |
298
|
|
|
|
|
|
|
|
299
|
|
|
|
|
|
|
if (retlen) { |
300
|
|
|
|
|
|
|
*retlen = expectlen; |
301
|
|
|
|
|
|
|
} |
302
|
|
|
|
|
|
|
|
303
|
|
|
|
|
|
|
/* An invariant is trivially returned */ |
304
|
|
|
|
|
|
|
if (expectlen == 1) { |
305
|
|
|
|
|
|
|
return uv; |
306
|
|
|
|
|
|
|
} |
307
|
|
|
|
|
|
|
|
308
|
|
|
|
|
|
|
/* Remove the leading bits that indicate the number of bytes, leaving just |
309
|
|
|
|
|
|
|
* the bits that are part of the value */ |
310
|
|
|
|
|
|
|
uv = NATIVE_UTF8_TO_I8(uv) & UTF_START_MASK(expectlen); |
311
|
|
|
|
|
|
|
|
312
|
|
|
|
|
|
|
/* Now, loop through the remaining bytes, accumulating each into the |
313
|
|
|
|
|
|
|
* working total as we go. (I khw tried unrolling the loop for up to 4 |
314
|
|
|
|
|
|
|
* bytes, but there was no performance improvement) */ |
315
|
|
|
|
|
|
|
for (++s; s < send; s++) { |
316
|
|
|
|
|
|
|
uv = UTF8_ACCUMULATE(uv, *s); |
317
|
|
|
|
|
|
|
} |
318
|
|
|
|
|
|
|
|
319
|
|
|
|
|
|
|
return UNI_TO_NATIVE(uv); |
320
|
|
|
|
|
|
|
|
321
|
|
|
|
|
|
|
} |
322
|
|
|
|
|
|
|
|
323
|
|
|
|
|
|
|
/* |
324
|
|
|
|
|
|
|
=for apidoc is_utf8_invariant_string |
325
|
|
|
|
|
|
|
|
326
|
|
|
|
|
|
|
Returns TRUE if the first C bytes of the string C are the same |
327
|
|
|
|
|
|
|
regardless of the UTF-8 encoding of the string (or UTF-EBCDIC encoding on |
328
|
|
|
|
|
|
|
EBCDIC machines); otherwise it returns FALSE. That is, it returns TRUE if they |
329
|
|
|
|
|
|
|
are UTF-8 invariant. On ASCII-ish machines, all the ASCII characters and only |
330
|
|
|
|
|
|
|
the ASCII characters fit this definition. On EBCDIC machines, the ASCII-range |
331
|
|
|
|
|
|
|
characters are invariant, but so also are the C1 controls. |
332
|
|
|
|
|
|
|
|
333
|
|
|
|
|
|
|
If C is 0, it will be calculated using C, (which means if you |
334
|
|
|
|
|
|
|
use this option, that C can't have embedded C characters and has to |
335
|
|
|
|
|
|
|
have a terminating C byte). |
336
|
|
|
|
|
|
|
|
337
|
|
|
|
|
|
|
See also |
338
|
|
|
|
|
|
|
C>, |
339
|
|
|
|
|
|
|
C>, |
340
|
|
|
|
|
|
|
C>, |
341
|
|
|
|
|
|
|
C>, |
342
|
|
|
|
|
|
|
C>, |
343
|
|
|
|
|
|
|
C>, |
344
|
|
|
|
|
|
|
C>, |
345
|
|
|
|
|
|
|
C>, |
346
|
|
|
|
|
|
|
C>, |
347
|
|
|
|
|
|
|
C>, |
348
|
|
|
|
|
|
|
C>, |
349
|
|
|
|
|
|
|
C>, |
350
|
|
|
|
|
|
|
C>, |
351
|
|
|
|
|
|
|
C>, |
352
|
|
|
|
|
|
|
and |
353
|
|
|
|
|
|
|
C>. |
354
|
|
|
|
|
|
|
|
355
|
|
|
|
|
|
|
=cut |
356
|
|
|
|
|
|
|
*/ |
357
|
|
|
|
|
|
|
|
358
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
359
|
|
|
|
|
|
|
S_is_utf8_invariant_string(const U8* const s, const STRLEN len) |
360
|
|
|
|
|
|
|
{ |
361
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
362
|
|
|
|
|
|
|
const U8* x = s; |
363
|
|
|
|
|
|
|
|
364
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_UTF8_INVARIANT_STRING; |
365
|
|
|
|
|
|
|
|
366
|
|
|
|
|
|
|
for (; x < send; ++x) { |
367
|
|
|
|
|
|
|
if (!UTF8_IS_INVARIANT(*x)) |
368
|
|
|
|
|
|
|
return FALSE; |
369
|
|
|
|
|
|
|
} |
370
|
|
|
|
|
|
|
|
371
|
|
|
|
|
|
|
return TRUE; |
372
|
|
|
|
|
|
|
} |
373
|
|
|
|
|
|
|
|
374
|
|
|
|
|
|
|
/* |
375
|
|
|
|
|
|
|
=for apidoc is_utf8_string |
376
|
|
|
|
|
|
|
|
377
|
|
|
|
|
|
|
Returns TRUE if the first C bytes of string C form a valid |
378
|
|
|
|
|
|
|
Perl-extended-UTF-8 string; returns FALSE otherwise. If C is 0, it will |
379
|
|
|
|
|
|
|
be calculated using C (which means if you use this option, that C |
380
|
|
|
|
|
|
|
can't have embedded C characters and has to have a terminating C |
381
|
|
|
|
|
|
|
byte). Note that all characters being ASCII constitute 'a valid UTF-8 string'. |
382
|
|
|
|
|
|
|
|
383
|
|
|
|
|
|
|
This function considers Perl's extended UTF-8 to be valid. That means that |
384
|
|
|
|
|
|
|
code points above Unicode, surrogates, and non-character code points are |
385
|
|
|
|
|
|
|
considered valid by this function. Use C>, |
386
|
|
|
|
|
|
|
C>, or C> to restrict what |
387
|
|
|
|
|
|
|
code points are considered valid. |
388
|
|
|
|
|
|
|
|
389
|
|
|
|
|
|
|
See also |
390
|
|
|
|
|
|
|
C>, |
391
|
|
|
|
|
|
|
C>, |
392
|
|
|
|
|
|
|
C>, |
393
|
|
|
|
|
|
|
C>, |
394
|
|
|
|
|
|
|
C>, |
395
|
|
|
|
|
|
|
C>, |
396
|
|
|
|
|
|
|
|
397
|
|
|
|
|
|
|
=cut |
398
|
|
|
|
|
|
|
*/ |
399
|
|
|
|
|
|
|
|
400
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
401
|
|
|
|
|
|
|
Perl_is_utf8_string(const U8 *s, const STRLEN len) |
402
|
|
|
|
|
|
|
{ |
403
|
|
|
|
|
|
|
/* This is now marked pure in embed.fnc, because isUTF8_CHAR now is pure. |
404
|
|
|
|
|
|
|
* Be aware of possible changes to that */ |
405
|
|
|
|
|
|
|
|
406
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
407
|
|
|
|
|
|
|
const U8* x = s; |
408
|
|
|
|
|
|
|
|
409
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_UTF8_STRING; |
410
|
|
|
|
|
|
|
|
411
|
|
|
|
|
|
|
while (x < send) { |
412
|
|
|
|
|
|
|
const STRLEN cur_len = isUTF8_CHAR(x, send); |
413
|
|
|
|
|
|
|
if (UNLIKELY(! cur_len)) { |
414
|
|
|
|
|
|
|
return FALSE; |
415
|
|
|
|
|
|
|
} |
416
|
|
|
|
|
|
|
x += cur_len; |
417
|
|
|
|
|
|
|
} |
418
|
|
|
|
|
|
|
|
419
|
|
|
|
|
|
|
return TRUE; |
420
|
|
|
|
|
|
|
} |
421
|
|
|
|
|
|
|
|
422
|
|
|
|
|
|
|
/* |
423
|
|
|
|
|
|
|
=for apidoc is_strict_utf8_string |
424
|
|
|
|
|
|
|
|
425
|
|
|
|
|
|
|
Returns TRUE if the first C bytes of string C form a valid |
426
|
|
|
|
|
|
|
UTF-8-encoded string that is fully interchangeable by any application using |
427
|
|
|
|
|
|
|
Unicode rules; otherwise it returns FALSE. If C is 0, it will be |
428
|
|
|
|
|
|
|
calculated using C (which means if you use this option, that C |
429
|
|
|
|
|
|
|
can't have embedded C characters and has to have a terminating C |
430
|
|
|
|
|
|
|
byte). Note that all characters being ASCII constitute 'a valid UTF-8 string'. |
431
|
|
|
|
|
|
|
|
432
|
|
|
|
|
|
|
This function returns FALSE for strings containing any |
433
|
|
|
|
|
|
|
code points above the Unicode max of 0x10FFFF, surrogate code points, or |
434
|
|
|
|
|
|
|
non-character code points. |
435
|
|
|
|
|
|
|
|
436
|
|
|
|
|
|
|
See also |
437
|
|
|
|
|
|
|
C>, |
438
|
|
|
|
|
|
|
C>, |
439
|
|
|
|
|
|
|
C>, |
440
|
|
|
|
|
|
|
C>, |
441
|
|
|
|
|
|
|
C>, |
442
|
|
|
|
|
|
|
C>, |
443
|
|
|
|
|
|
|
C>, |
444
|
|
|
|
|
|
|
C>, |
445
|
|
|
|
|
|
|
C>, |
446
|
|
|
|
|
|
|
C>, |
447
|
|
|
|
|
|
|
C>, |
448
|
|
|
|
|
|
|
C>, |
449
|
|
|
|
|
|
|
C>, |
450
|
|
|
|
|
|
|
C>, |
451
|
|
|
|
|
|
|
and |
452
|
|
|
|
|
|
|
C>. |
453
|
|
|
|
|
|
|
|
454
|
|
|
|
|
|
|
=cut |
455
|
|
|
|
|
|
|
*/ |
456
|
|
|
|
|
|
|
|
457
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
458
|
|
|
|
|
|
|
S_is_strict_utf8_string(const U8 *s, const STRLEN len) |
459
|
|
|
|
|
|
|
{ |
460
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
461
|
|
|
|
|
|
|
const U8* x = s; |
462
|
|
|
|
|
|
|
|
463
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_STRICT_UTF8_STRING; |
464
|
|
|
|
|
|
|
|
465
|
|
|
|
|
|
|
while (x < send) { |
466
|
|
|
|
|
|
|
const STRLEN cur_len = isSTRICT_UTF8_CHAR(x, send); |
467
|
|
|
|
|
|
|
if (UNLIKELY(! cur_len)) { |
468
|
|
|
|
|
|
|
return FALSE; |
469
|
|
|
|
|
|
|
} |
470
|
|
|
|
|
|
|
x += cur_len; |
471
|
|
|
|
|
|
|
} |
472
|
|
|
|
|
|
|
|
473
|
|
|
|
|
|
|
return TRUE; |
474
|
|
|
|
|
|
|
} |
475
|
|
|
|
|
|
|
|
476
|
|
|
|
|
|
|
/* |
477
|
|
|
|
|
|
|
=for apidoc is_c9strict_utf8_string |
478
|
|
|
|
|
|
|
|
479
|
|
|
|
|
|
|
Returns TRUE if the first C bytes of string C form a valid |
480
|
|
|
|
|
|
|
UTF-8-encoded string that conforms to |
481
|
|
|
|
|
|
|
L; |
482
|
|
|
|
|
|
|
otherwise it returns FALSE. If C is 0, it will be calculated using |
483
|
|
|
|
|
|
|
C (which means if you use this option, that C can't have embedded |
484
|
|
|
|
|
|
|
C characters and has to have a terminating C byte). Note that all |
485
|
|
|
|
|
|
|
characters being ASCII constitute 'a valid UTF-8 string'. |
486
|
|
|
|
|
|
|
|
487
|
|
|
|
|
|
|
This function returns FALSE for strings containing any code points above the |
488
|
|
|
|
|
|
|
Unicode max of 0x10FFFF or surrogate code points, but accepts non-character |
489
|
|
|
|
|
|
|
code points per |
490
|
|
|
|
|
|
|
L. |
491
|
|
|
|
|
|
|
|
492
|
|
|
|
|
|
|
See also |
493
|
|
|
|
|
|
|
C>, |
494
|
|
|
|
|
|
|
C>, |
495
|
|
|
|
|
|
|
C>, |
496
|
|
|
|
|
|
|
C>, |
497
|
|
|
|
|
|
|
C>, |
498
|
|
|
|
|
|
|
C>, |
499
|
|
|
|
|
|
|
C>, |
500
|
|
|
|
|
|
|
C>, |
501
|
|
|
|
|
|
|
C>, |
502
|
|
|
|
|
|
|
C>, |
503
|
|
|
|
|
|
|
C>, |
504
|
|
|
|
|
|
|
C>, |
505
|
|
|
|
|
|
|
C>, |
506
|
|
|
|
|
|
|
C>, |
507
|
|
|
|
|
|
|
and |
508
|
|
|
|
|
|
|
C>. |
509
|
|
|
|
|
|
|
|
510
|
|
|
|
|
|
|
=cut |
511
|
|
|
|
|
|
|
*/ |
512
|
|
|
|
|
|
|
|
513
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
514
|
|
|
|
|
|
|
S_is_c9strict_utf8_string(const U8 *s, const STRLEN len) |
515
|
|
|
|
|
|
|
{ |
516
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
517
|
|
|
|
|
|
|
const U8* x = s; |
518
|
|
|
|
|
|
|
|
519
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_C9STRICT_UTF8_STRING; |
520
|
|
|
|
|
|
|
|
521
|
|
|
|
|
|
|
while (x < send) { |
522
|
|
|
|
|
|
|
const STRLEN cur_len = isC9_STRICT_UTF8_CHAR(x, send); |
523
|
|
|
|
|
|
|
if (UNLIKELY(! cur_len)) { |
524
|
|
|
|
|
|
|
return FALSE; |
525
|
|
|
|
|
|
|
} |
526
|
|
|
|
|
|
|
x += cur_len; |
527
|
|
|
|
|
|
|
} |
528
|
|
|
|
|
|
|
|
529
|
|
|
|
|
|
|
return TRUE; |
530
|
|
|
|
|
|
|
} |
531
|
|
|
|
|
|
|
|
532
|
|
|
|
|
|
|
/* The above 3 functions could have been moved into the more general one just |
533
|
|
|
|
|
|
|
* below, and made #defines that call it with the right 'flags'. They are |
534
|
|
|
|
|
|
|
* currently kept separate to increase their chances of getting inlined */ |
535
|
|
|
|
|
|
|
|
536
|
|
|
|
|
|
|
/* |
537
|
|
|
|
|
|
|
=for apidoc is_utf8_string_flags |
538
|
|
|
|
|
|
|
|
539
|
|
|
|
|
|
|
Returns TRUE if the first C bytes of string C form a valid |
540
|
|
|
|
|
|
|
UTF-8 string, subject to the restrictions imposed by C; |
541
|
|
|
|
|
|
|
returns FALSE otherwise. If C is 0, it will be calculated |
542
|
|
|
|
|
|
|
using C (which means if you use this option, that C can't have |
543
|
|
|
|
|
|
|
embedded C characters and has to have a terminating C byte). Note |
544
|
|
|
|
|
|
|
that all characters being ASCII constitute 'a valid UTF-8 string'. |
545
|
|
|
|
|
|
|
|
546
|
|
|
|
|
|
|
If C is 0, this gives the same results as C>; if |
547
|
|
|
|
|
|
|
C is C, this gives the same results |
548
|
|
|
|
|
|
|
as C>; and if C is |
549
|
|
|
|
|
|
|
C, this gives the same results as |
550
|
|
|
|
|
|
|
C>. Otherwise C may be any |
551
|
|
|
|
|
|
|
combination of the C> flags understood by |
552
|
|
|
|
|
|
|
C>, with the same meanings. |
553
|
|
|
|
|
|
|
|
554
|
|
|
|
|
|
|
See also |
555
|
|
|
|
|
|
|
C>, |
556
|
|
|
|
|
|
|
C>, |
557
|
|
|
|
|
|
|
C>, |
558
|
|
|
|
|
|
|
C>, |
559
|
|
|
|
|
|
|
C>, |
560
|
|
|
|
|
|
|
C>, |
561
|
|
|
|
|
|
|
C>, |
562
|
|
|
|
|
|
|
C>, |
563
|
|
|
|
|
|
|
C>, |
564
|
|
|
|
|
|
|
C>, |
565
|
|
|
|
|
|
|
C>, |
566
|
|
|
|
|
|
|
C>, |
567
|
|
|
|
|
|
|
C>, |
568
|
|
|
|
|
|
|
C>, |
569
|
|
|
|
|
|
|
and |
570
|
|
|
|
|
|
|
C>. |
571
|
|
|
|
|
|
|
|
572
|
|
|
|
|
|
|
=cut |
573
|
|
|
|
|
|
|
*/ |
574
|
|
|
|
|
|
|
|
575
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
576
|
|
|
|
|
|
|
S_is_utf8_string_flags(const U8 *s, const STRLEN len, const U32 flags) |
577
|
|
|
|
|
|
|
{ |
578
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
579
|
|
|
|
|
|
|
const U8* x = s; |
580
|
|
|
|
|
|
|
|
581
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_UTF8_STRING_FLAGS; |
582
|
|
|
|
|
|
|
assert(0 == (flags & ~(UTF8_DISALLOW_ILLEGAL_INTERCHANGE |
583
|
|
|
|
|
|
|
|UTF8_DISALLOW_ABOVE_31_BIT))); |
584
|
|
|
|
|
|
|
|
585
|
|
|
|
|
|
|
if (flags == 0) { |
586
|
|
|
|
|
|
|
return is_utf8_string(s, len); |
587
|
|
|
|
|
|
|
} |
588
|
|
|
|
|
|
|
|
589
|
|
|
|
|
|
|
if ((flags & ~UTF8_DISALLOW_ABOVE_31_BIT) |
590
|
|
|
|
|
|
|
== UTF8_DISALLOW_ILLEGAL_INTERCHANGE) |
591
|
|
|
|
|
|
|
{ |
592
|
|
|
|
|
|
|
return is_strict_utf8_string(s, len); |
593
|
|
|
|
|
|
|
} |
594
|
|
|
|
|
|
|
|
595
|
|
|
|
|
|
|
if ((flags & ~UTF8_DISALLOW_ABOVE_31_BIT) |
596
|
|
|
|
|
|
|
== UTF8_DISALLOW_ILLEGAL_C9_INTERCHANGE) |
597
|
|
|
|
|
|
|
{ |
598
|
|
|
|
|
|
|
return is_c9strict_utf8_string(s, len); |
599
|
|
|
|
|
|
|
} |
600
|
|
|
|
|
|
|
|
601
|
|
|
|
|
|
|
while (x < send) { |
602
|
|
|
|
|
|
|
STRLEN cur_len = isUTF8_CHAR_flags(x, send, flags); |
603
|
|
|
|
|
|
|
if (UNLIKELY(! cur_len)) { |
604
|
|
|
|
|
|
|
return FALSE; |
605
|
|
|
|
|
|
|
} |
606
|
|
|
|
|
|
|
x += cur_len; |
607
|
|
|
|
|
|
|
} |
608
|
|
|
|
|
|
|
|
609
|
|
|
|
|
|
|
return TRUE; |
610
|
|
|
|
|
|
|
} |
611
|
|
|
|
|
|
|
|
612
|
|
|
|
|
|
|
/* |
613
|
|
|
|
|
|
|
|
614
|
|
|
|
|
|
|
=for apidoc is_utf8_string_loc |
615
|
|
|
|
|
|
|
|
616
|
|
|
|
|
|
|
Like C> but stores the location of the failure (in the |
617
|
|
|
|
|
|
|
case of "utf8ness failure") or the location C+C (in the case of |
618
|
|
|
|
|
|
|
"utf8ness success") in the C pointer. |
619
|
|
|
|
|
|
|
|
620
|
|
|
|
|
|
|
See also C>. |
621
|
|
|
|
|
|
|
|
622
|
|
|
|
|
|
|
=cut |
623
|
|
|
|
|
|
|
*/ |
624
|
|
|
|
|
|
|
|
625
|
|
|
|
|
|
|
#define is_utf8_string_loc(s, len, ep) is_utf8_string_loclen(s, len, ep, 0) |
626
|
|
|
|
|
|
|
|
627
|
|
|
|
|
|
|
/* |
628
|
|
|
|
|
|
|
|
629
|
|
|
|
|
|
|
=for apidoc is_utf8_string_loclen |
630
|
|
|
|
|
|
|
|
631
|
|
|
|
|
|
|
Like C> but stores the location of the failure (in the |
632
|
|
|
|
|
|
|
case of "utf8ness failure") or the location C+C (in the case of |
633
|
|
|
|
|
|
|
"utf8ness success") in the C pointer, and the number of UTF-8 |
634
|
|
|
|
|
|
|
encoded characters in the C pointer. |
635
|
|
|
|
|
|
|
|
636
|
|
|
|
|
|
|
See also C>. |
637
|
|
|
|
|
|
|
|
638
|
|
|
|
|
|
|
=cut |
639
|
|
|
|
|
|
|
*/ |
640
|
|
|
|
|
|
|
|
641
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
642
|
|
|
|
|
|
|
Perl_is_utf8_string_loclen(const U8 *s, const STRLEN len, const U8 **ep, STRLEN *el) |
643
|
|
|
|
|
|
|
{ |
644
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
645
|
|
|
|
|
|
|
const U8* x = s; |
646
|
|
|
|
|
|
|
STRLEN outlen = 0; |
647
|
|
|
|
|
|
|
|
648
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_UTF8_STRING_LOCLEN; |
649
|
|
|
|
|
|
|
|
650
|
|
|
|
|
|
|
while (x < send) { |
651
|
|
|
|
|
|
|
const STRLEN cur_len = isUTF8_CHAR(x, send); |
652
|
|
|
|
|
|
|
if (UNLIKELY(! cur_len)) { |
653
|
|
|
|
|
|
|
break; |
654
|
|
|
|
|
|
|
} |
655
|
|
|
|
|
|
|
x += cur_len; |
656
|
|
|
|
|
|
|
outlen++; |
657
|
|
|
|
|
|
|
} |
658
|
|
|
|
|
|
|
|
659
|
|
|
|
|
|
|
if (el) |
660
|
|
|
|
|
|
|
*el = outlen; |
661
|
|
|
|
|
|
|
|
662
|
|
|
|
|
|
|
if (ep) { |
663
|
|
|
|
|
|
|
*ep = x; |
664
|
|
|
|
|
|
|
} |
665
|
|
|
|
|
|
|
|
666
|
|
|
|
|
|
|
return (x == send); |
667
|
|
|
|
|
|
|
} |
668
|
|
|
|
|
|
|
|
669
|
|
|
|
|
|
|
/* |
670
|
|
|
|
|
|
|
|
671
|
|
|
|
|
|
|
=for apidoc is_strict_utf8_string_loc |
672
|
|
|
|
|
|
|
|
673
|
|
|
|
|
|
|
Like C> but stores the location of the failure (in the |
674
|
|
|
|
|
|
|
case of "utf8ness failure") or the location C+C (in the case of |
675
|
|
|
|
|
|
|
"utf8ness success") in the C pointer. |
676
|
|
|
|
|
|
|
|
677
|
|
|
|
|
|
|
See also C>. |
678
|
|
|
|
|
|
|
|
679
|
|
|
|
|
|
|
=cut |
680
|
|
|
|
|
|
|
*/ |
681
|
|
|
|
|
|
|
|
682
|
|
|
|
|
|
|
#define is_strict_utf8_string_loc(s, len, ep) \ |
683
|
|
|
|
|
|
|
is_strict_utf8_string_loclen(s, len, ep, 0) |
684
|
|
|
|
|
|
|
|
685
|
|
|
|
|
|
|
/* |
686
|
|
|
|
|
|
|
|
687
|
|
|
|
|
|
|
=for apidoc is_strict_utf8_string_loclen |
688
|
|
|
|
|
|
|
|
689
|
|
|
|
|
|
|
Like C> but stores the location of the failure (in the |
690
|
|
|
|
|
|
|
case of "utf8ness failure") or the location C+C (in the case of |
691
|
|
|
|
|
|
|
"utf8ness success") in the C pointer, and the number of UTF-8 |
692
|
|
|
|
|
|
|
encoded characters in the C pointer. |
693
|
|
|
|
|
|
|
|
694
|
|
|
|
|
|
|
See also C>. |
695
|
|
|
|
|
|
|
|
696
|
|
|
|
|
|
|
=cut |
697
|
|
|
|
|
|
|
*/ |
698
|
|
|
|
|
|
|
|
699
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
700
|
|
|
|
|
|
|
S_is_strict_utf8_string_loclen(const U8 *s, const STRLEN len, const U8 **ep, STRLEN *el) |
701
|
|
|
|
|
|
|
{ |
702
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
703
|
|
|
|
|
|
|
const U8* x = s; |
704
|
|
|
|
|
|
|
STRLEN outlen = 0; |
705
|
|
|
|
|
|
|
|
706
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_STRICT_UTF8_STRING_LOCLEN; |
707
|
|
|
|
|
|
|
|
708
|
|
|
|
|
|
|
while (x < send) { |
709
|
|
|
|
|
|
|
const STRLEN cur_len = isSTRICT_UTF8_CHAR(x, send); |
710
|
|
|
|
|
|
|
if (UNLIKELY(! cur_len)) { |
711
|
|
|
|
|
|
|
break; |
712
|
|
|
|
|
|
|
} |
713
|
|
|
|
|
|
|
x += cur_len; |
714
|
|
|
|
|
|
|
outlen++; |
715
|
|
|
|
|
|
|
} |
716
|
|
|
|
|
|
|
|
717
|
|
|
|
|
|
|
if (el) |
718
|
|
|
|
|
|
|
*el = outlen; |
719
|
|
|
|
|
|
|
|
720
|
|
|
|
|
|
|
if (ep) { |
721
|
|
|
|
|
|
|
*ep = x; |
722
|
|
|
|
|
|
|
} |
723
|
|
|
|
|
|
|
|
724
|
|
|
|
|
|
|
return (x == send); |
725
|
|
|
|
|
|
|
} |
726
|
|
|
|
|
|
|
|
727
|
|
|
|
|
|
|
/* |
728
|
|
|
|
|
|
|
|
729
|
|
|
|
|
|
|
=for apidoc is_c9strict_utf8_string_loc |
730
|
|
|
|
|
|
|
|
731
|
|
|
|
|
|
|
Like C> but stores the location of the failure (in |
732
|
|
|
|
|
|
|
the case of "utf8ness failure") or the location C+C (in the case of |
733
|
|
|
|
|
|
|
"utf8ness success") in the C pointer. |
734
|
|
|
|
|
|
|
|
735
|
|
|
|
|
|
|
See also C>. |
736
|
|
|
|
|
|
|
|
737
|
|
|
|
|
|
|
=cut |
738
|
|
|
|
|
|
|
*/ |
739
|
|
|
|
|
|
|
|
740
|
|
|
|
|
|
|
#define is_c9strict_utf8_string_loc(s, len, ep) \ |
741
|
|
|
|
|
|
|
is_c9strict_utf8_string_loclen(s, len, ep, 0) |
742
|
|
|
|
|
|
|
|
743
|
|
|
|
|
|
|
/* |
744
|
|
|
|
|
|
|
|
745
|
|
|
|
|
|
|
=for apidoc is_c9strict_utf8_string_loclen |
746
|
|
|
|
|
|
|
|
747
|
|
|
|
|
|
|
Like C> but stores the location of the failure (in |
748
|
|
|
|
|
|
|
the case of "utf8ness failure") or the location C+C (in the case of |
749
|
|
|
|
|
|
|
"utf8ness success") in the C pointer, and the number of UTF-8 encoded |
750
|
|
|
|
|
|
|
characters in the C pointer. |
751
|
|
|
|
|
|
|
|
752
|
|
|
|
|
|
|
See also C>. |
753
|
|
|
|
|
|
|
|
754
|
|
|
|
|
|
|
=cut |
755
|
|
|
|
|
|
|
*/ |
756
|
|
|
|
|
|
|
|
757
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
758
|
|
|
|
|
|
|
S_is_c9strict_utf8_string_loclen(const U8 *s, const STRLEN len, const U8 **ep, STRLEN *el) |
759
|
|
|
|
|
|
|
{ |
760
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
761
|
|
|
|
|
|
|
const U8* x = s; |
762
|
|
|
|
|
|
|
STRLEN outlen = 0; |
763
|
|
|
|
|
|
|
|
764
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_C9STRICT_UTF8_STRING_LOCLEN; |
765
|
|
|
|
|
|
|
|
766
|
|
|
|
|
|
|
while (x < send) { |
767
|
|
|
|
|
|
|
const STRLEN cur_len = isC9_STRICT_UTF8_CHAR(x, send); |
768
|
|
|
|
|
|
|
if (UNLIKELY(! cur_len)) { |
769
|
|
|
|
|
|
|
break; |
770
|
|
|
|
|
|
|
} |
771
|
|
|
|
|
|
|
x += cur_len; |
772
|
|
|
|
|
|
|
outlen++; |
773
|
|
|
|
|
|
|
} |
774
|
|
|
|
|
|
|
|
775
|
|
|
|
|
|
|
if (el) |
776
|
|
|
|
|
|
|
*el = outlen; |
777
|
|
|
|
|
|
|
|
778
|
|
|
|
|
|
|
if (ep) { |
779
|
|
|
|
|
|
|
*ep = x; |
780
|
|
|
|
|
|
|
} |
781
|
|
|
|
|
|
|
|
782
|
|
|
|
|
|
|
return (x == send); |
783
|
|
|
|
|
|
|
} |
784
|
|
|
|
|
|
|
|
785
|
|
|
|
|
|
|
/* |
786
|
|
|
|
|
|
|
|
787
|
|
|
|
|
|
|
=for apidoc is_utf8_string_loc_flags |
788
|
|
|
|
|
|
|
|
789
|
|
|
|
|
|
|
Like C> but stores the location of the failure (in the |
790
|
|
|
|
|
|
|
case of "utf8ness failure") or the location C+C (in the case of |
791
|
|
|
|
|
|
|
"utf8ness success") in the C pointer. |
792
|
|
|
|
|
|
|
|
793
|
|
|
|
|
|
|
See also C>. |
794
|
|
|
|
|
|
|
|
795
|
|
|
|
|
|
|
=cut |
796
|
|
|
|
|
|
|
*/ |
797
|
|
|
|
|
|
|
|
798
|
|
|
|
|
|
|
#define is_utf8_string_loc_flags(s, len, ep, flags) \ |
799
|
|
|
|
|
|
|
is_utf8_string_loclen_flags(s, len, ep, 0, flags) |
800
|
|
|
|
|
|
|
|
801
|
|
|
|
|
|
|
|
802
|
|
|
|
|
|
|
/* The above 3 actual functions could have been moved into the more general one |
803
|
|
|
|
|
|
|
* just below, and made #defines that call it with the right 'flags'. They are |
804
|
|
|
|
|
|
|
* currently kept separate to increase their chances of getting inlined */ |
805
|
|
|
|
|
|
|
|
806
|
|
|
|
|
|
|
/* |
807
|
|
|
|
|
|
|
|
808
|
|
|
|
|
|
|
=for apidoc is_utf8_string_loclen_flags |
809
|
|
|
|
|
|
|
|
810
|
|
|
|
|
|
|
Like C> but stores the location of the failure (in the |
811
|
|
|
|
|
|
|
case of "utf8ness failure") or the location C+C (in the case of |
812
|
|
|
|
|
|
|
"utf8ness success") in the C pointer, and the number of UTF-8 |
813
|
|
|
|
|
|
|
encoded characters in the C pointer. |
814
|
|
|
|
|
|
|
|
815
|
|
|
|
|
|
|
See also C>. |
816
|
|
|
|
|
|
|
|
817
|
|
|
|
|
|
|
=cut |
818
|
|
|
|
|
|
|
*/ |
819
|
|
|
|
|
|
|
|
820
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
821
|
|
|
|
|
|
|
S_is_utf8_string_loclen_flags(const U8 *s, const STRLEN len, const U8 **ep, STRLEN *el, const U32 flags) |
822
|
|
|
|
|
|
|
{ |
823
|
|
|
|
|
|
|
const U8* const send = s + (len ? len : strlen((const char *)s)); |
824
|
|
|
|
|
|
|
const U8* x = s; |
825
|
|
|
|
|
|
|
STRLEN outlen = 0; |
826
|
|
|
|
|
|
|
|
827
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_UTF8_STRING_LOCLEN_FLAGS; |
828
|
|
|
|
|
|
|
assert(0 == (flags & ~(UTF8_DISALLOW_ILLEGAL_INTERCHANGE |
829
|
|
|
|
|
|
|
|UTF8_DISALLOW_ABOVE_31_BIT))); |
830
|
|
|
|
|
|
|
|
831
|
|
|
|
|
|
|
if (flags == 0) { |
832
|
|
|
|
|
|
|
return is_utf8_string_loclen(s, len, ep, el); |
833
|
|
|
|
|
|
|
} |
834
|
|
|
|
|
|
|
|
835
|
|
|
|
|
|
|
if ((flags & ~UTF8_DISALLOW_ABOVE_31_BIT) |
836
|
|
|
|
|
|
|
== UTF8_DISALLOW_ILLEGAL_INTERCHANGE) |
837
|
|
|
|
|
|
|
{ |
838
|
|
|
|
|
|
|
return is_strict_utf8_string_loclen(s, len, ep, el); |
839
|
|
|
|
|
|
|
} |
840
|
|
|
|
|
|
|
|
841
|
|
|
|
|
|
|
if ((flags & ~UTF8_DISALLOW_ABOVE_31_BIT) |
842
|
|
|
|
|
|
|
== UTF8_DISALLOW_ILLEGAL_C9_INTERCHANGE) |
843
|
|
|
|
|
|
|
{ |
844
|
|
|
|
|
|
|
return is_c9strict_utf8_string_loclen(s, len, ep, el); |
845
|
|
|
|
|
|
|
} |
846
|
|
|
|
|
|
|
|
847
|
|
|
|
|
|
|
while (x < send) { |
848
|
|
|
|
|
|
|
const STRLEN cur_len = isUTF8_CHAR_flags(x, send, flags); |
849
|
|
|
|
|
|
|
if (UNLIKELY(! cur_len)) { |
850
|
|
|
|
|
|
|
break; |
851
|
|
|
|
|
|
|
} |
852
|
|
|
|
|
|
|
x += cur_len; |
853
|
|
|
|
|
|
|
outlen++; |
854
|
|
|
|
|
|
|
} |
855
|
|
|
|
|
|
|
|
856
|
|
|
|
|
|
|
if (el) |
857
|
|
|
|
|
|
|
*el = outlen; |
858
|
|
|
|
|
|
|
|
859
|
|
|
|
|
|
|
if (ep) { |
860
|
|
|
|
|
|
|
*ep = x; |
861
|
|
|
|
|
|
|
} |
862
|
|
|
|
|
|
|
|
863
|
|
|
|
|
|
|
return (x == send); |
864
|
|
|
|
|
|
|
} |
865
|
|
|
|
|
|
|
|
866
|
|
|
|
|
|
|
/* |
867
|
|
|
|
|
|
|
=for apidoc utf8_distance |
868
|
|
|
|
|
|
|
|
869
|
|
|
|
|
|
|
Returns the number of UTF-8 characters between the UTF-8 pointers C |
870
|
|
|
|
|
|
|
and C. |
871
|
|
|
|
|
|
|
|
872
|
|
|
|
|
|
|
WARNING: use only if you *know* that the pointers point inside the |
873
|
|
|
|
|
|
|
same UTF-8 buffer. |
874
|
|
|
|
|
|
|
|
875
|
|
|
|
|
|
|
=cut |
876
|
|
|
|
|
|
|
*/ |
877
|
|
|
|
|
|
|
|
878
|
|
|
|
|
|
|
PERL_STATIC_INLINE IV |
879
|
|
|
|
|
|
|
Perl_utf8_distance(pTHX_ const U8 *a, const U8 *b) |
880
|
|
|
|
|
|
|
{ |
881
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_UTF8_DISTANCE; |
882
|
|
|
|
|
|
|
|
883
|
|
|
|
|
|
|
return (a < b) ? -1 * (IV) utf8_length(a, b) : (IV) utf8_length(b, a); |
884
|
|
|
|
|
|
|
} |
885
|
|
|
|
|
|
|
|
886
|
|
|
|
|
|
|
/* |
887
|
|
|
|
|
|
|
=for apidoc utf8_hop |
888
|
|
|
|
|
|
|
|
889
|
|
|
|
|
|
|
Return the UTF-8 pointer C displaced by C characters, either |
890
|
|
|
|
|
|
|
forward or backward. |
891
|
|
|
|
|
|
|
|
892
|
|
|
|
|
|
|
WARNING: do not use the following unless you *know* C is within |
893
|
|
|
|
|
|
|
the UTF-8 data pointed to by C *and* that on entry C is aligned |
894
|
|
|
|
|
|
|
on the first byte of character or just after the last byte of a character. |
895
|
|
|
|
|
|
|
|
896
|
|
|
|
|
|
|
=cut |
897
|
|
|
|
|
|
|
*/ |
898
|
|
|
|
|
|
|
|
899
|
|
|
|
|
|
|
PERL_STATIC_INLINE U8 * |
900
|
|
|
|
|
|
|
Perl_utf8_hop(const U8 *s, SSize_t off) |
901
|
|
|
|
|
|
|
{ |
902
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_UTF8_HOP; |
903
|
|
|
|
|
|
|
|
904
|
|
|
|
|
|
|
/* Note: cannot use UTF8_IS_...() too eagerly here since e.g |
905
|
|
|
|
|
|
|
* the bitops (especially ~) can create illegal UTF-8. |
906
|
|
|
|
|
|
|
* In other words: in Perl UTF-8 is not just for Unicode. */ |
907
|
|
|
|
|
|
|
|
908
|
|
|
|
|
|
|
if (off >= 0) { |
909
|
|
|
|
|
|
|
while (off--) |
910
|
|
|
|
|
|
|
s += UTF8SKIP(s); |
911
|
|
|
|
|
|
|
} |
912
|
|
|
|
|
|
|
else { |
913
|
|
|
|
|
|
|
while (off++) { |
914
|
|
|
|
|
|
|
s--; |
915
|
|
|
|
|
|
|
while (UTF8_IS_CONTINUATION(*s)) |
916
|
|
|
|
|
|
|
s--; |
917
|
|
|
|
|
|
|
} |
918
|
|
|
|
|
|
|
} |
919
|
|
|
|
|
|
|
GCC_DIAG_IGNORE(-Wcast-qual); |
920
|
|
|
|
|
|
|
return (U8 *)s; |
921
|
|
|
|
|
|
|
GCC_DIAG_RESTORE; |
922
|
|
|
|
|
|
|
} |
923
|
|
|
|
|
|
|
|
924
|
|
|
|
|
|
|
/* |
925
|
|
|
|
|
|
|
=for apidoc utf8_hop_forward |
926
|
|
|
|
|
|
|
|
927
|
|
|
|
|
|
|
Return the UTF-8 pointer C displaced by up to C characters, |
928
|
|
|
|
|
|
|
forward. |
929
|
|
|
|
|
|
|
|
930
|
|
|
|
|
|
|
C must be non-negative. |
931
|
|
|
|
|
|
|
|
932
|
|
|
|
|
|
|
C must be before or equal to C. |
933
|
|
|
|
|
|
|
|
934
|
|
|
|
|
|
|
When moving forward it will not move beyond C. |
935
|
|
|
|
|
|
|
|
936
|
|
|
|
|
|
|
Will not exceed this limit even if the string is not valid "UTF-8". |
937
|
|
|
|
|
|
|
|
938
|
|
|
|
|
|
|
=cut |
939
|
|
|
|
|
|
|
*/ |
940
|
|
|
|
|
|
|
|
941
|
|
|
|
|
|
|
PERL_STATIC_INLINE U8 * |
942
|
|
|
|
|
|
|
Perl_utf8_hop_forward(const U8 *s, SSize_t off, const U8 *end) |
943
|
|
|
|
|
|
|
{ |
944
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_UTF8_HOP_FORWARD; |
945
|
|
|
|
|
|
|
|
946
|
|
|
|
|
|
|
/* Note: cannot use UTF8_IS_...() too eagerly here since e.g |
947
|
|
|
|
|
|
|
* the bitops (especially ~) can create illegal UTF-8. |
948
|
|
|
|
|
|
|
* In other words: in Perl UTF-8 is not just for Unicode. */ |
949
|
|
|
|
|
|
|
|
950
|
|
|
|
|
|
|
assert(s <= end); |
951
|
|
|
|
|
|
|
assert(off >= 0); |
952
|
|
|
|
|
|
|
|
953
|
|
|
|
|
|
|
while (off--) { |
954
|
|
|
|
|
|
|
STRLEN skip = UTF8SKIP(s); |
955
|
|
|
|
|
|
|
if ((STRLEN)(end - s) <= skip) { |
956
|
|
|
|
|
|
|
GCC_DIAG_IGNORE(-Wcast-qual); |
957
|
|
|
|
|
|
|
return (U8 *)end; |
958
|
|
|
|
|
|
|
GCC_DIAG_RESTORE; |
959
|
|
|
|
|
|
|
} |
960
|
|
|
|
|
|
|
s += skip; |
961
|
|
|
|
|
|
|
} |
962
|
|
|
|
|
|
|
|
963
|
|
|
|
|
|
|
GCC_DIAG_IGNORE(-Wcast-qual); |
964
|
|
|
|
|
|
|
return (U8 *)s; |
965
|
|
|
|
|
|
|
GCC_DIAG_RESTORE; |
966
|
|
|
|
|
|
|
} |
967
|
|
|
|
|
|
|
|
968
|
|
|
|
|
|
|
/* |
969
|
|
|
|
|
|
|
=for apidoc utf8_hop_back |
970
|
|
|
|
|
|
|
|
971
|
|
|
|
|
|
|
Return the UTF-8 pointer C displaced by up to C characters, |
972
|
|
|
|
|
|
|
backward. |
973
|
|
|
|
|
|
|
|
974
|
|
|
|
|
|
|
C must be non-positive. |
975
|
|
|
|
|
|
|
|
976
|
|
|
|
|
|
|
C must be after or equal to C. |
977
|
|
|
|
|
|
|
|
978
|
|
|
|
|
|
|
When moving backward it will not move before C. |
979
|
|
|
|
|
|
|
|
980
|
|
|
|
|
|
|
Will not exceed this limit even if the string is not valid "UTF-8". |
981
|
|
|
|
|
|
|
|
982
|
|
|
|
|
|
|
=cut |
983
|
|
|
|
|
|
|
*/ |
984
|
|
|
|
|
|
|
|
985
|
|
|
|
|
|
|
PERL_STATIC_INLINE U8 * |
986
|
|
|
|
|
|
|
Perl_utf8_hop_back(const U8 *s, SSize_t off, const U8 *start) |
987
|
|
|
|
|
|
|
{ |
988
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_UTF8_HOP_BACK; |
989
|
|
|
|
|
|
|
|
990
|
|
|
|
|
|
|
/* Note: cannot use UTF8_IS_...() too eagerly here since e.g |
991
|
|
|
|
|
|
|
* the bitops (especially ~) can create illegal UTF-8. |
992
|
|
|
|
|
|
|
* In other words: in Perl UTF-8 is not just for Unicode. */ |
993
|
|
|
|
|
|
|
|
994
|
|
|
|
|
|
|
assert(start <= s); |
995
|
|
|
|
|
|
|
assert(off <= 0); |
996
|
|
|
|
|
|
|
|
997
|
|
|
|
|
|
|
while (off++ && s > start) { |
998
|
|
|
|
|
|
|
s--; |
999
|
|
|
|
|
|
|
while (UTF8_IS_CONTINUATION(*s) && s > start) |
1000
|
|
|
|
|
|
|
s--; |
1001
|
|
|
|
|
|
|
} |
1002
|
|
|
|
|
|
|
|
1003
|
|
|
|
|
|
|
GCC_DIAG_IGNORE(-Wcast-qual); |
1004
|
|
|
|
|
|
|
return (U8 *)s; |
1005
|
|
|
|
|
|
|
GCC_DIAG_RESTORE; |
1006
|
|
|
|
|
|
|
} |
1007
|
|
|
|
|
|
|
|
1008
|
|
|
|
|
|
|
/* |
1009
|
|
|
|
|
|
|
=for apidoc utf8_hop_safe |
1010
|
|
|
|
|
|
|
|
1011
|
|
|
|
|
|
|
Return the UTF-8 pointer C displaced by up to C characters, |
1012
|
|
|
|
|
|
|
either forward or backward. |
1013
|
|
|
|
|
|
|
|
1014
|
|
|
|
|
|
|
When moving backward it will not move before C. |
1015
|
|
|
|
|
|
|
|
1016
|
|
|
|
|
|
|
When moving forward it will not move beyond C. |
1017
|
|
|
|
|
|
|
|
1018
|
|
|
|
|
|
|
Will not exceed those limits even if the string is not valid "UTF-8". |
1019
|
|
|
|
|
|
|
|
1020
|
|
|
|
|
|
|
=cut |
1021
|
|
|
|
|
|
|
*/ |
1022
|
|
|
|
|
|
|
|
1023
|
|
|
|
|
|
|
PERL_STATIC_INLINE U8 * |
1024
|
|
|
|
|
|
|
Perl_utf8_hop_safe(const U8 *s, SSize_t off, const U8 *start, const U8 *end) |
1025
|
|
|
|
|
|
|
{ |
1026
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_UTF8_HOP_SAFE; |
1027
|
|
|
|
|
|
|
|
1028
|
|
|
|
|
|
|
/* Note: cannot use UTF8_IS_...() too eagerly here since e.g |
1029
|
|
|
|
|
|
|
* the bitops (especially ~) can create illegal UTF-8. |
1030
|
|
|
|
|
|
|
* In other words: in Perl UTF-8 is not just for Unicode. */ |
1031
|
|
|
|
|
|
|
|
1032
|
|
|
|
|
|
|
assert(start <= s && s <= end); |
1033
|
|
|
|
|
|
|
|
1034
|
|
|
|
|
|
|
if (off >= 0) { |
1035
|
|
|
|
|
|
|
return utf8_hop_forward(s, off, end); |
1036
|
|
|
|
|
|
|
} |
1037
|
|
|
|
|
|
|
else { |
1038
|
|
|
|
|
|
|
return utf8_hop_back(s, off, start); |
1039
|
|
|
|
|
|
|
} |
1040
|
|
|
|
|
|
|
} |
1041
|
|
|
|
|
|
|
|
1042
|
|
|
|
|
|
|
/* |
1043
|
|
|
|
|
|
|
|
1044
|
|
|
|
|
|
|
=for apidoc is_utf8_valid_partial_char |
1045
|
|
|
|
|
|
|
|
1046
|
|
|
|
|
|
|
Returns 0 if the sequence of bytes starting at C and looking no further than |
1047
|
|
|
|
|
|
|
S> is the UTF-8 encoding, as extended by Perl, for one or more code |
1048
|
|
|
|
|
|
|
points. Otherwise, it returns 1 if there exists at least one non-empty |
1049
|
|
|
|
|
|
|
sequence of bytes that when appended to sequence C, starting at position |
1050
|
|
|
|
|
|
|
C causes the entire sequence to be the well-formed UTF-8 of some code point; |
1051
|
|
|
|
|
|
|
otherwise returns 0. |
1052
|
|
|
|
|
|
|
|
1053
|
|
|
|
|
|
|
In other words this returns TRUE if C points to a partial UTF-8-encoded code |
1054
|
|
|
|
|
|
|
point. |
1055
|
|
|
|
|
|
|
|
1056
|
|
|
|
|
|
|
This is useful when a fixed-length buffer is being tested for being well-formed |
1057
|
|
|
|
|
|
|
UTF-8, but the final few bytes in it don't comprise a full character; that is, |
1058
|
|
|
|
|
|
|
it is split somewhere in the middle of the final code point's UTF-8 |
1059
|
|
|
|
|
|
|
representation. (Presumably when the buffer is refreshed with the next chunk |
1060
|
|
|
|
|
|
|
of data, the new first bytes will complete the partial code point.) This |
1061
|
|
|
|
|
|
|
function is used to verify that the final bytes in the current buffer are in |
1062
|
|
|
|
|
|
|
fact the legal beginning of some code point, so that if they aren't, the |
1063
|
|
|
|
|
|
|
failure can be signalled without having to wait for the next read. |
1064
|
|
|
|
|
|
|
|
1065
|
|
|
|
|
|
|
=cut |
1066
|
|
|
|
|
|
|
*/ |
1067
|
|
|
|
|
|
|
#define is_utf8_valid_partial_char(s, e) \ |
1068
|
|
|
|
|
|
|
is_utf8_valid_partial_char_flags(s, e, 0) |
1069
|
|
|
|
|
|
|
|
1070
|
|
|
|
|
|
|
/* |
1071
|
|
|
|
|
|
|
|
1072
|
|
|
|
|
|
|
=for apidoc is_utf8_valid_partial_char_flags |
1073
|
|
|
|
|
|
|
|
1074
|
|
|
|
|
|
|
Like C>, it returns a boolean giving whether |
1075
|
|
|
|
|
|
|
or not the input is a valid UTF-8 encoded partial character, but it takes an |
1076
|
|
|
|
|
|
|
extra parameter, C, which can further restrict which code points are |
1077
|
|
|
|
|
|
|
considered valid. |
1078
|
|
|
|
|
|
|
|
1079
|
|
|
|
|
|
|
If C is 0, this behaves identically to |
1080
|
|
|
|
|
|
|
C>. Otherwise C can be any combination |
1081
|
|
|
|
|
|
|
of the C> flags accepted by C>. If |
1082
|
|
|
|
|
|
|
there is any sequence of bytes that can complete the input partial character in |
1083
|
|
|
|
|
|
|
such a way that a non-prohibited character is formed, the function returns |
1084
|
|
|
|
|
|
|
TRUE; otherwise FALSE. Non character code points cannot be determined based on |
1085
|
|
|
|
|
|
|
partial character input. But many of the other possible excluded types can be |
1086
|
|
|
|
|
|
|
determined from just the first one or two bytes. |
1087
|
|
|
|
|
|
|
|
1088
|
|
|
|
|
|
|
=cut |
1089
|
|
|
|
|
|
|
*/ |
1090
|
|
|
|
|
|
|
|
1091
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
1092
|
|
|
|
|
|
|
S_is_utf8_valid_partial_char_flags(const U8 * const s, const U8 * const e, const U32 flags) |
1093
|
|
|
|
|
|
|
{ |
1094
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_UTF8_VALID_PARTIAL_CHAR_FLAGS; |
1095
|
|
|
|
|
|
|
|
1096
|
|
|
|
|
|
|
assert(0 == (flags & ~(UTF8_DISALLOW_ILLEGAL_INTERCHANGE |
1097
|
|
|
|
|
|
|
|UTF8_DISALLOW_ABOVE_31_BIT))); |
1098
|
|
|
|
|
|
|
|
1099
|
|
|
|
|
|
|
if (s >= e || s + UTF8SKIP(s) <= e) { |
1100
|
|
|
|
|
|
|
return FALSE; |
1101
|
|
|
|
|
|
|
} |
1102
|
|
|
|
|
|
|
|
1103
|
|
|
|
|
|
|
return cBOOL(_is_utf8_char_helper(s, e, flags)); |
1104
|
|
|
|
|
|
|
} |
1105
|
|
|
|
|
|
|
|
1106
|
|
|
|
|
|
|
/* |
1107
|
|
|
|
|
|
|
|
1108
|
|
|
|
|
|
|
=for apidoc is_utf8_fixed_width_buf_flags |
1109
|
|
|
|
|
|
|
|
1110
|
|
|
|
|
|
|
Returns TRUE if the fixed-width buffer starting at C with length C |
1111
|
|
|
|
|
|
|
is entirely valid UTF-8, subject to the restrictions given by C; |
1112
|
|
|
|
|
|
|
otherwise it returns FALSE. |
1113
|
|
|
|
|
|
|
|
1114
|
|
|
|
|
|
|
If C is 0, any well-formed UTF-8, as extended by Perl, is accepted |
1115
|
|
|
|
|
|
|
without restriction. If the final few bytes of the buffer do not form a |
1116
|
|
|
|
|
|
|
complete code point, this will return TRUE anyway, provided that |
1117
|
|
|
|
|
|
|
C> returns TRUE for them. |
1118
|
|
|
|
|
|
|
|
1119
|
|
|
|
|
|
|
If C in non-zero, it can be any combination of the |
1120
|
|
|
|
|
|
|
C> flags accepted by C>, and with the |
1121
|
|
|
|
|
|
|
same meanings. |
1122
|
|
|
|
|
|
|
|
1123
|
|
|
|
|
|
|
This function differs from C> only in that the latter |
1124
|
|
|
|
|
|
|
returns FALSE if the final few bytes of the string don't form a complete code |
1125
|
|
|
|
|
|
|
point. |
1126
|
|
|
|
|
|
|
|
1127
|
|
|
|
|
|
|
=cut |
1128
|
|
|
|
|
|
|
*/ |
1129
|
|
|
|
|
|
|
#define is_utf8_fixed_width_buf_flags(s, len, flags) \ |
1130
|
|
|
|
|
|
|
is_utf8_fixed_width_buf_loclen_flags(s, len, 0, 0, flags) |
1131
|
|
|
|
|
|
|
|
1132
|
|
|
|
|
|
|
/* |
1133
|
|
|
|
|
|
|
|
1134
|
|
|
|
|
|
|
=for apidoc is_utf8_fixed_width_buf_loc_flags |
1135
|
|
|
|
|
|
|
|
1136
|
|
|
|
|
|
|
Like C> but stores the location of the |
1137
|
|
|
|
|
|
|
failure in the C pointer. If the function returns TRUE, C<*ep> will point |
1138
|
|
|
|
|
|
|
to the beginning of any partial character at the end of the buffer; if there is |
1139
|
|
|
|
|
|
|
no partial character C<*ep> will contain C+C. |
1140
|
|
|
|
|
|
|
|
1141
|
|
|
|
|
|
|
See also C>. |
1142
|
|
|
|
|
|
|
|
1143
|
|
|
|
|
|
|
=cut |
1144
|
|
|
|
|
|
|
*/ |
1145
|
|
|
|
|
|
|
|
1146
|
|
|
|
|
|
|
#define is_utf8_fixed_width_buf_loc_flags(s, len, loc, flags) \ |
1147
|
|
|
|
|
|
|
is_utf8_fixed_width_buf_loclen_flags(s, len, loc, 0, flags) |
1148
|
|
|
|
|
|
|
|
1149
|
|
|
|
|
|
|
/* |
1150
|
|
|
|
|
|
|
|
1151
|
|
|
|
|
|
|
=for apidoc is_utf8_fixed_width_buf_loclen_flags |
1152
|
|
|
|
|
|
|
|
1153
|
|
|
|
|
|
|
Like C> but stores the number of |
1154
|
|
|
|
|
|
|
complete, valid characters found in the C pointer. |
1155
|
|
|
|
|
|
|
|
1156
|
|
|
|
|
|
|
=cut |
1157
|
|
|
|
|
|
|
*/ |
1158
|
|
|
|
|
|
|
|
1159
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
1160
|
|
|
|
|
|
|
S_is_utf8_fixed_width_buf_loclen_flags(const U8 * const s, |
1161
|
|
|
|
|
|
|
const STRLEN len, |
1162
|
|
|
|
|
|
|
const U8 **ep, |
1163
|
|
|
|
|
|
|
STRLEN *el, |
1164
|
|
|
|
|
|
|
const U32 flags) |
1165
|
|
|
|
|
|
|
{ |
1166
|
|
|
|
|
|
|
const U8 * maybe_partial; |
1167
|
|
|
|
|
|
|
|
1168
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_UTF8_FIXED_WIDTH_BUF_LOCLEN_FLAGS; |
1169
|
|
|
|
|
|
|
|
1170
|
|
|
|
|
|
|
if (! ep) { |
1171
|
|
|
|
|
|
|
ep = &maybe_partial; |
1172
|
|
|
|
|
|
|
} |
1173
|
|
|
|
|
|
|
|
1174
|
|
|
|
|
|
|
/* If it's entirely valid, return that; otherwise see if the only error is |
1175
|
|
|
|
|
|
|
* that the final few bytes are for a partial character */ |
1176
|
|
|
|
|
|
|
return is_utf8_string_loclen_flags(s, len, ep, el, flags) |
1177
|
|
|
|
|
|
|
|| is_utf8_valid_partial_char_flags(*ep, s + len, flags); |
1178
|
|
|
|
|
|
|
} |
1179
|
|
|
|
|
|
|
|
1180
|
|
|
|
|
|
|
/* ------------------------------- perl.h ----------------------------- */ |
1181
|
|
|
|
|
|
|
|
1182
|
|
|
|
|
|
|
/* |
1183
|
|
|
|
|
|
|
=head1 Miscellaneous Functions |
1184
|
|
|
|
|
|
|
|
1185
|
|
|
|
|
|
|
=for apidoc AiR|bool|is_safe_syscall|const char *pv|STRLEN len|const char *what|const char *op_name |
1186
|
|
|
|
|
|
|
|
1187
|
|
|
|
|
|
|
Test that the given C doesn't contain any internal C characters. |
1188
|
|
|
|
|
|
|
If it does, set C to C, optionally warn, and return FALSE. |
1189
|
|
|
|
|
|
|
|
1190
|
|
|
|
|
|
|
Return TRUE if the name is safe. |
1191
|
|
|
|
|
|
|
|
1192
|
|
|
|
|
|
|
Used by the C macro. |
1193
|
|
|
|
|
|
|
|
1194
|
|
|
|
|
|
|
=cut |
1195
|
|
|
|
|
|
|
*/ |
1196
|
|
|
|
|
|
|
|
1197
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
1198
|
|
|
|
|
|
|
S_is_safe_syscall(pTHX_ const char *pv, STRLEN len, const char *what, const char *op_name) { |
1199
|
|
|
|
|
|
|
/* While the Windows CE API provides only UCS-16 (or UTF-16) APIs |
1200
|
|
|
|
|
|
|
* perl itself uses xce*() functions which accept 8-bit strings. |
1201
|
|
|
|
|
|
|
*/ |
1202
|
|
|
|
|
|
|
|
1203
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_IS_SAFE_SYSCALL; |
1204
|
|
|
|
|
|
|
|
1205
|
|
|
|
|
|
|
if (len > 1) { |
1206
|
|
|
|
|
|
|
char *null_at; |
1207
|
|
|
|
|
|
|
if (UNLIKELY((null_at = (char *)memchr(pv, 0, len-1)) != NULL)) { |
1208
|
|
|
|
|
|
|
SETERRNO(ENOENT, LIB_INVARG); |
1209
|
|
|
|
|
|
|
Perl_ck_warner(aTHX_ packWARN(WARN_SYSCALLS), |
1210
|
|
|
|
|
|
|
"Invalid \\0 character in %s for %s: %s\\0%s", |
1211
|
|
|
|
|
|
|
what, op_name, pv, null_at+1); |
1212
|
|
|
|
|
|
|
return FALSE; |
1213
|
|
|
|
|
|
|
} |
1214
|
|
|
|
|
|
|
} |
1215
|
|
|
|
|
|
|
|
1216
|
|
|
|
|
|
|
return TRUE; |
1217
|
|
|
|
|
|
|
} |
1218
|
|
|
|
|
|
|
|
1219
|
|
|
|
|
|
|
/* |
1220
|
|
|
|
|
|
|
|
1221
|
|
|
|
|
|
|
Return true if the supplied filename has a newline character |
1222
|
|
|
|
|
|
|
immediately before the first (hopefully only) NUL. |
1223
|
|
|
|
|
|
|
|
1224
|
|
|
|
|
|
|
My original look at this incorrectly used the len from SvPV(), but |
1225
|
|
|
|
|
|
|
that's incorrect, since we allow for a NUL in pv[len-1]. |
1226
|
|
|
|
|
|
|
|
1227
|
|
|
|
|
|
|
So instead, strlen() and work from there. |
1228
|
|
|
|
|
|
|
|
1229
|
|
|
|
|
|
|
This allow for the user reading a filename, forgetting to chomp it, |
1230
|
|
|
|
|
|
|
then calling: |
1231
|
|
|
|
|
|
|
|
1232
|
|
|
|
|
|
|
open my $foo, "$file\0"; |
1233
|
|
|
|
|
|
|
|
1234
|
|
|
|
|
|
|
*/ |
1235
|
|
|
|
|
|
|
|
1236
|
|
|
|
|
|
|
#ifdef PERL_CORE |
1237
|
|
|
|
|
|
|
|
1238
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
1239
|
|
|
|
|
|
|
S_should_warn_nl(const char *pv) { |
1240
|
|
|
|
|
|
|
STRLEN len; |
1241
|
|
|
|
|
|
|
|
1242
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_SHOULD_WARN_NL; |
1243
|
|
|
|
|
|
|
|
1244
|
|
|
|
|
|
|
len = strlen(pv); |
1245
|
|
|
|
|
|
|
|
1246
|
|
|
|
|
|
|
return len > 0 && pv[len-1] == '\n'; |
1247
|
|
|
|
|
|
|
} |
1248
|
|
|
|
|
|
|
|
1249
|
|
|
|
|
|
|
#endif |
1250
|
|
|
|
|
|
|
|
1251
|
|
|
|
|
|
|
/* ------------------ pp.c, regcomp.c, toke.c, universal.c ------------ */ |
1252
|
|
|
|
|
|
|
|
1253
|
|
|
|
|
|
|
#define MAX_CHARSET_NAME_LENGTH 2 |
1254
|
|
|
|
|
|
|
|
1255
|
|
|
|
|
|
|
PERL_STATIC_INLINE const char * |
1256
|
|
|
|
|
|
|
get_regex_charset_name(const U32 flags, STRLEN* const lenp) |
1257
|
|
|
|
|
|
|
{ |
1258
|
|
|
|
|
|
|
/* Returns a string that corresponds to the name of the regex character set |
1259
|
|
|
|
|
|
|
* given by 'flags', and *lenp is set the length of that string, which |
1260
|
|
|
|
|
|
|
* cannot exceed MAX_CHARSET_NAME_LENGTH characters */ |
1261
|
|
|
|
|
|
|
|
1262
|
|
|
|
|
|
|
*lenp = 1; |
1263
|
|
|
|
|
|
|
switch (get_regex_charset(flags)) { |
1264
|
|
|
|
|
|
|
case REGEX_DEPENDS_CHARSET: return DEPENDS_PAT_MODS; |
1265
|
|
|
|
|
|
|
case REGEX_LOCALE_CHARSET: return LOCALE_PAT_MODS; |
1266
|
|
|
|
|
|
|
case REGEX_UNICODE_CHARSET: return UNICODE_PAT_MODS; |
1267
|
|
|
|
|
|
|
case REGEX_ASCII_RESTRICTED_CHARSET: return ASCII_RESTRICT_PAT_MODS; |
1268
|
|
|
|
|
|
|
case REGEX_ASCII_MORE_RESTRICTED_CHARSET: |
1269
|
|
|
|
|
|
|
*lenp = 2; |
1270
|
|
|
|
|
|
|
return ASCII_MORE_RESTRICT_PAT_MODS; |
1271
|
|
|
|
|
|
|
} |
1272
|
|
|
|
|
|
|
/* The NOT_REACHED; hides an assert() which has a rather complex |
1273
|
|
|
|
|
|
|
* definition in perl.h. */ |
1274
|
|
|
|
|
|
|
NOT_REACHED; /* NOTREACHED */ |
1275
|
|
|
|
|
|
|
return "?"; /* Unknown */ |
1276
|
|
|
|
|
|
|
} |
1277
|
|
|
|
|
|
|
|
1278
|
|
|
|
|
|
|
/* |
1279
|
|
|
|
|
|
|
|
1280
|
|
|
|
|
|
|
Return false if any get magic is on the SV other than taint magic. |
1281
|
|
|
|
|
|
|
|
1282
|
|
|
|
|
|
|
*/ |
1283
|
|
|
|
|
|
|
|
1284
|
|
|
|
|
|
|
PERL_STATIC_INLINE bool |
1285
|
|
|
|
|
|
|
S_sv_only_taint_gmagic(SV *sv) { |
1286
|
|
|
|
|
|
|
MAGIC *mg = SvMAGIC(sv); |
1287
|
|
|
|
|
|
|
|
1288
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_SV_ONLY_TAINT_GMAGIC; |
1289
|
|
|
|
|
|
|
|
1290
|
|
|
|
|
|
|
while (mg) { |
1291
|
|
|
|
|
|
|
if (mg->mg_type != PERL_MAGIC_taint |
1292
|
|
|
|
|
|
|
&& !(mg->mg_flags & MGf_GSKIP) |
1293
|
|
|
|
|
|
|
&& mg->mg_virtual->svt_get) { |
1294
|
|
|
|
|
|
|
return FALSE; |
1295
|
|
|
|
|
|
|
} |
1296
|
|
|
|
|
|
|
mg = mg->mg_moremagic; |
1297
|
|
|
|
|
|
|
} |
1298
|
|
|
|
|
|
|
|
1299
|
|
|
|
|
|
|
return TRUE; |
1300
|
|
|
|
|
|
|
} |
1301
|
|
|
|
|
|
|
|
1302
|
|
|
|
|
|
|
/* ------------------ cop.h ------------------------------------------- */ |
1303
|
|
|
|
|
|
|
|
1304
|
|
|
|
|
|
|
|
1305
|
|
|
|
|
|
|
/* Enter a block. Push a new base context and return its address. */ |
1306
|
|
|
|
|
|
|
|
1307
|
|
|
|
|
|
|
PERL_STATIC_INLINE PERL_CONTEXT * |
1308
|
|
|
|
|
|
|
S_cx_pushblock(pTHX_ U8 type, U8 gimme, SV** sp, I32 saveix) |
1309
|
|
|
|
|
|
|
{ |
1310
|
|
|
|
|
|
|
PERL_CONTEXT * cx; |
1311
|
|
|
|
|
|
|
|
1312
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_PUSHBLOCK; |
1313
|
|
|
|
|
|
|
|
1314
|
|
|
|
|
|
|
CXINC; |
1315
|
|
|
|
|
|
|
cx = CX_CUR(); |
1316
|
|
|
|
|
|
|
cx->cx_type = type; |
1317
|
|
|
|
|
|
|
cx->blk_gimme = gimme; |
1318
|
|
|
|
|
|
|
cx->blk_oldsaveix = saveix; |
1319
|
|
|
|
|
|
|
cx->blk_oldsp = (I32)(sp - PL_stack_base); |
1320
|
|
|
|
|
|
|
cx->blk_oldcop = PL_curcop; |
1321
|
|
|
|
|
|
|
cx->blk_oldmarksp = (I32)(PL_markstack_ptr - PL_markstack); |
1322
|
|
|
|
|
|
|
cx->blk_oldscopesp = PL_scopestack_ix; |
1323
|
|
|
|
|
|
|
cx->blk_oldpm = PL_curpm; |
1324
|
|
|
|
|
|
|
cx->blk_old_tmpsfloor = PL_tmps_floor; |
1325
|
|
|
|
|
|
|
|
1326
|
|
|
|
|
|
|
PL_tmps_floor = PL_tmps_ix; |
1327
|
|
|
|
|
|
|
CX_DEBUG(cx, "PUSH"); |
1328
|
|
|
|
|
|
|
return cx; |
1329
|
|
|
|
|
|
|
} |
1330
|
|
|
|
|
|
|
|
1331
|
|
|
|
|
|
|
|
1332
|
|
|
|
|
|
|
/* Exit a block (RETURN and LAST). */ |
1333
|
|
|
|
|
|
|
|
1334
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1335
|
|
|
|
|
|
|
S_cx_popblock(pTHX_ PERL_CONTEXT *cx) |
1336
|
|
|
|
|
|
|
{ |
1337
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPBLOCK; |
1338
|
|
|
|
|
|
|
|
1339
|
|
|
|
|
|
|
CX_DEBUG(cx, "POP"); |
1340
|
|
|
|
|
|
|
/* these 3 are common to cx_popblock and cx_topblock */ |
1341
|
|
|
|
|
|
|
PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp; |
1342
|
|
|
|
|
|
|
PL_scopestack_ix = cx->blk_oldscopesp; |
1343
|
|
|
|
|
|
|
PL_curpm = cx->blk_oldpm; |
1344
|
|
|
|
|
|
|
|
1345
|
|
|
|
|
|
|
/* LEAVE_SCOPE() should have made this true. /(?{})/ cheats |
1346
|
|
|
|
|
|
|
* and leaves a CX entry lying around for repeated use, so |
1347
|
|
|
|
|
|
|
* skip for multicall */ \ |
1348
|
|
|
|
|
|
|
assert( (CxTYPE(cx) == CXt_SUB && CxMULTICALL(cx)) |
1349
|
|
|
|
|
|
|
|| PL_savestack_ix == cx->blk_oldsaveix); |
1350
|
|
|
|
|
|
|
PL_curcop = cx->blk_oldcop; |
1351
|
|
|
|
|
|
|
PL_tmps_floor = cx->blk_old_tmpsfloor; |
1352
|
|
|
|
|
|
|
} |
1353
|
|
|
|
|
|
|
|
1354
|
|
|
|
|
|
|
/* Continue a block elsewhere (e.g. NEXT, REDO, GOTO). |
1355
|
|
|
|
|
|
|
* Whereas cx_popblock() restores the state to the point just before |
1356
|
|
|
|
|
|
|
* cx_pushblock() was called, cx_topblock() restores it to the point just |
1357
|
|
|
|
|
|
|
* *after* cx_pushblock() was called. */ |
1358
|
|
|
|
|
|
|
|
1359
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1360
|
|
|
|
|
|
|
S_cx_topblock(pTHX_ PERL_CONTEXT *cx) |
1361
|
|
|
|
|
|
|
{ |
1362
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_TOPBLOCK; |
1363
|
|
|
|
|
|
|
|
1364
|
|
|
|
|
|
|
CX_DEBUG(cx, "TOP"); |
1365
|
|
|
|
|
|
|
/* these 3 are common to cx_popblock and cx_topblock */ |
1366
|
|
|
|
|
|
|
PL_markstack_ptr = PL_markstack + cx->blk_oldmarksp; |
1367
|
|
|
|
|
|
|
PL_scopestack_ix = cx->blk_oldscopesp; |
1368
|
|
|
|
|
|
|
PL_curpm = cx->blk_oldpm; |
1369
|
|
|
|
|
|
|
|
1370
|
|
|
|
|
|
|
PL_stack_sp = PL_stack_base + cx->blk_oldsp; |
1371
|
|
|
|
|
|
|
} |
1372
|
|
|
|
|
|
|
|
1373
|
|
|
|
|
|
|
|
1374
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1375
|
|
|
|
|
|
|
S_cx_pushsub(pTHX_ PERL_CONTEXT *cx, CV *cv, OP *retop, bool hasargs) |
1376
|
|
|
|
|
|
|
{ |
1377
|
|
|
|
|
|
|
U8 phlags = CX_PUSHSUB_GET_LVALUE_MASK(Perl_was_lvalue_sub); |
1378
|
|
|
|
|
|
|
|
1379
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_PUSHSUB; |
1380
|
|
|
|
|
|
|
|
1381
|
|
|
|
|
|
|
PERL_DTRACE_PROBE_ENTRY(cv); |
1382
|
|
|
|
|
|
|
cx->blk_sub.cv = cv; |
1383
|
|
|
|
|
|
|
cx->blk_sub.olddepth = CvDEPTH(cv); |
1384
|
|
|
|
|
|
|
cx->blk_sub.prevcomppad = PL_comppad; |
1385
|
|
|
|
|
|
|
cx->cx_type |= (hasargs) ? CXp_HASARGS : 0; |
1386
|
|
|
|
|
|
|
cx->blk_sub.retop = retop; |
1387
|
|
|
|
|
|
|
SvREFCNT_inc_simple_void_NN(cv); |
1388
|
|
|
|
|
|
|
cx->blk_u16 = PL_op->op_private & (phlags|OPpDEREF); |
1389
|
|
|
|
|
|
|
} |
1390
|
|
|
|
|
|
|
|
1391
|
|
|
|
|
|
|
|
1392
|
|
|
|
|
|
|
/* subsets of cx_popsub() */ |
1393
|
|
|
|
|
|
|
|
1394
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1395
|
|
|
|
|
|
|
S_cx_popsub_common(pTHX_ PERL_CONTEXT *cx) |
1396
|
|
|
|
|
|
|
{ |
1397
|
|
|
|
|
|
|
CV *cv; |
1398
|
|
|
|
|
|
|
|
1399
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPSUB_COMMON; |
1400
|
|
|
|
|
|
|
assert(CxTYPE(cx) == CXt_SUB); |
1401
|
|
|
|
|
|
|
|
1402
|
|
|
|
|
|
|
PL_comppad = cx->blk_sub.prevcomppad; |
1403
|
|
|
|
|
|
|
PL_curpad = LIKELY(PL_comppad) ? AvARRAY(PL_comppad) : NULL; |
1404
|
|
|
|
|
|
|
cv = cx->blk_sub.cv; |
1405
|
|
|
|
|
|
|
CvDEPTH(cv) = cx->blk_sub.olddepth; |
1406
|
|
|
|
|
|
|
cx->blk_sub.cv = NULL; |
1407
|
|
|
|
|
|
|
SvREFCNT_dec(cv); |
1408
|
|
|
|
|
|
|
} |
1409
|
|
|
|
|
|
|
|
1410
|
|
|
|
|
|
|
|
1411
|
|
|
|
|
|
|
/* handle the @_ part of leaving a sub */ |
1412
|
|
|
|
|
|
|
|
1413
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1414
|
|
|
|
|
|
|
S_cx_popsub_args(pTHX_ PERL_CONTEXT *cx) |
1415
|
|
|
|
|
|
|
{ |
1416
|
|
|
|
|
|
|
AV *av; |
1417
|
|
|
|
|
|
|
|
1418
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPSUB_ARGS; |
1419
|
|
|
|
|
|
|
assert(CxTYPE(cx) == CXt_SUB); |
1420
|
|
|
|
|
|
|
assert(AvARRAY(MUTABLE_AV( |
1421
|
|
|
|
|
|
|
PadlistARRAY(CvPADLIST(cx->blk_sub.cv))[ |
1422
|
|
|
|
|
|
|
CvDEPTH(cx->blk_sub.cv)])) == PL_curpad); |
1423
|
|
|
|
|
|
|
|
1424
|
|
|
|
|
|
|
CX_POP_SAVEARRAY(cx); |
1425
|
|
|
|
|
|
|
av = MUTABLE_AV(PAD_SVl(0)); |
1426
|
|
|
|
|
|
|
if (UNLIKELY(AvREAL(av))) |
1427
|
|
|
|
|
|
|
/* abandon @_ if it got reified */ |
1428
|
|
|
|
|
|
|
clear_defarray(av, 0); |
1429
|
|
|
|
|
|
|
else { |
1430
|
|
|
|
|
|
|
CLEAR_ARGARRAY(av); |
1431
|
|
|
|
|
|
|
} |
1432
|
|
|
|
|
|
|
} |
1433
|
|
|
|
|
|
|
|
1434
|
|
|
|
|
|
|
|
1435
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1436
|
|
|
|
|
|
|
S_cx_popsub(pTHX_ PERL_CONTEXT *cx) |
1437
|
|
|
|
|
|
|
{ |
1438
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPSUB; |
1439
|
|
|
|
|
|
|
assert(CxTYPE(cx) == CXt_SUB); |
1440
|
|
|
|
|
|
|
|
1441
|
|
|
|
|
|
|
PERL_DTRACE_PROBE_RETURN(cx->blk_sub.cv); |
1442
|
|
|
|
|
|
|
|
1443
|
|
|
|
|
|
|
if (CxHASARGS(cx)) |
1444
|
|
|
|
|
|
|
cx_popsub_args(cx); |
1445
|
|
|
|
|
|
|
cx_popsub_common(cx); |
1446
|
|
|
|
|
|
|
} |
1447
|
|
|
|
|
|
|
|
1448
|
|
|
|
|
|
|
|
1449
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1450
|
|
|
|
|
|
|
S_cx_pushformat(pTHX_ PERL_CONTEXT *cx, CV *cv, OP *retop, GV *gv) |
1451
|
|
|
|
|
|
|
{ |
1452
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_PUSHFORMAT; |
1453
|
|
|
|
|
|
|
|
1454
|
|
|
|
|
|
|
cx->blk_format.cv = cv; |
1455
|
|
|
|
|
|
|
cx->blk_format.retop = retop; |
1456
|
|
|
|
|
|
|
cx->blk_format.gv = gv; |
1457
|
|
|
|
|
|
|
cx->blk_format.dfoutgv = PL_defoutgv; |
1458
|
|
|
|
|
|
|
cx->blk_format.prevcomppad = PL_comppad; |
1459
|
|
|
|
|
|
|
cx->blk_u16 = 0; |
1460
|
|
|
|
|
|
|
|
1461
|
|
|
|
|
|
|
SvREFCNT_inc_simple_void_NN(cv); |
1462
|
|
|
|
|
|
|
CvDEPTH(cv)++; |
1463
|
|
|
|
|
|
|
SvREFCNT_inc_void(cx->blk_format.dfoutgv); |
1464
|
|
|
|
|
|
|
} |
1465
|
|
|
|
|
|
|
|
1466
|
|
|
|
|
|
|
|
1467
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1468
|
|
|
|
|
|
|
S_cx_popformat(pTHX_ PERL_CONTEXT *cx) |
1469
|
|
|
|
|
|
|
{ |
1470
|
|
|
|
|
|
|
CV *cv; |
1471
|
|
|
|
|
|
|
GV *dfout; |
1472
|
|
|
|
|
|
|
|
1473
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPFORMAT; |
1474
|
|
|
|
|
|
|
assert(CxTYPE(cx) == CXt_FORMAT); |
1475
|
|
|
|
|
|
|
|
1476
|
|
|
|
|
|
|
dfout = cx->blk_format.dfoutgv; |
1477
|
|
|
|
|
|
|
setdefout(dfout); |
1478
|
|
|
|
|
|
|
cx->blk_format.dfoutgv = NULL; |
1479
|
|
|
|
|
|
|
SvREFCNT_dec_NN(dfout); |
1480
|
|
|
|
|
|
|
|
1481
|
|
|
|
|
|
|
PL_comppad = cx->blk_format.prevcomppad; |
1482
|
|
|
|
|
|
|
PL_curpad = LIKELY(PL_comppad) ? AvARRAY(PL_comppad) : NULL; |
1483
|
|
|
|
|
|
|
cv = cx->blk_format.cv; |
1484
|
|
|
|
|
|
|
cx->blk_format.cv = NULL; |
1485
|
|
|
|
|
|
|
--CvDEPTH(cv); |
1486
|
|
|
|
|
|
|
SvREFCNT_dec_NN(cv); |
1487
|
|
|
|
|
|
|
} |
1488
|
|
|
|
|
|
|
|
1489
|
|
|
|
|
|
|
|
1490
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1491
|
|
|
|
|
|
|
S_cx_pusheval(pTHX_ PERL_CONTEXT *cx, OP *retop, SV *namesv) |
1492
|
|
|
|
|
|
|
{ |
1493
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_PUSHEVAL; |
1494
|
|
|
|
|
|
|
|
1495
|
|
|
|
|
|
|
cx->blk_eval.retop = retop; |
1496
|
|
|
|
|
|
|
cx->blk_eval.old_namesv = namesv; |
1497
|
|
|
|
|
|
|
cx->blk_eval.old_eval_root = PL_eval_root; |
1498
|
|
|
|
|
|
|
cx->blk_eval.cur_text = PL_parser ? PL_parser->linestr : NULL; |
1499
|
|
|
|
|
|
|
cx->blk_eval.cv = NULL; /* later set by doeval_compile() */ |
1500
|
|
|
|
|
|
|
cx->blk_eval.cur_top_env = PL_top_env; |
1501
|
|
|
|
|
|
|
|
1502
|
|
|
|
|
|
|
assert(!(PL_in_eval & ~ 0x3F)); |
1503
|
|
|
|
|
|
|
assert(!(PL_op->op_type & ~0x1FF)); |
1504
|
|
|
|
|
|
|
cx->blk_u16 = (PL_in_eval & 0x3F) | ((U16)PL_op->op_type << 7); |
1505
|
|
|
|
|
|
|
} |
1506
|
|
|
|
|
|
|
|
1507
|
|
|
|
|
|
|
|
1508
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1509
|
|
|
|
|
|
|
S_cx_popeval(pTHX_ PERL_CONTEXT *cx) |
1510
|
|
|
|
|
|
|
{ |
1511
|
|
|
|
|
|
|
SV *sv; |
1512
|
|
|
|
|
|
|
|
1513
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPEVAL; |
1514
|
|
|
|
|
|
|
assert(CxTYPE(cx) == CXt_EVAL); |
1515
|
|
|
|
|
|
|
|
1516
|
|
|
|
|
|
|
PL_in_eval = CxOLD_IN_EVAL(cx); |
1517
|
|
|
|
|
|
|
assert(!(PL_in_eval & 0xc0)); |
1518
|
|
|
|
|
|
|
PL_eval_root = cx->blk_eval.old_eval_root; |
1519
|
|
|
|
|
|
|
sv = cx->blk_eval.cur_text; |
1520
|
|
|
|
|
|
|
if (sv && CxEVAL_TXT_REFCNTED(cx)) { |
1521
|
|
|
|
|
|
|
cx->blk_eval.cur_text = NULL; |
1522
|
|
|
|
|
|
|
SvREFCNT_dec_NN(sv); |
1523
|
|
|
|
|
|
|
} |
1524
|
|
|
|
|
|
|
|
1525
|
|
|
|
|
|
|
sv = cx->blk_eval.old_namesv; |
1526
|
|
|
|
|
|
|
if (sv) { |
1527
|
|
|
|
|
|
|
cx->blk_eval.old_namesv = NULL; |
1528
|
|
|
|
|
|
|
SvREFCNT_dec_NN(sv); |
1529
|
|
|
|
|
|
|
} |
1530
|
|
|
|
|
|
|
} |
1531
|
|
|
|
|
|
|
|
1532
|
|
|
|
|
|
|
|
1533
|
|
|
|
|
|
|
/* push a plain loop, i.e. |
1534
|
|
|
|
|
|
|
* { block } |
1535
|
|
|
|
|
|
|
* while (cond) { block } |
1536
|
|
|
|
|
|
|
* for (init;cond;continue) { block } |
1537
|
|
|
|
|
|
|
* This loop can be last/redo'ed etc. |
1538
|
|
|
|
|
|
|
*/ |
1539
|
|
|
|
|
|
|
|
1540
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1541
|
|
|
|
|
|
|
S_cx_pushloop_plain(pTHX_ PERL_CONTEXT *cx) |
1542
|
|
|
|
|
|
|
{ |
1543
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_PUSHLOOP_PLAIN; |
1544
|
|
|
|
|
|
|
cx->blk_loop.my_op = cLOOP; |
1545
|
|
|
|
|
|
|
} |
1546
|
|
|
|
|
|
|
|
1547
|
|
|
|
|
|
|
|
1548
|
|
|
|
|
|
|
/* push a true for loop, i.e. |
1549
|
|
|
|
|
|
|
* for var (list) { block } |
1550
|
|
|
|
|
|
|
*/ |
1551
|
|
|
|
|
|
|
|
1552
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1553
|
|
|
|
|
|
|
S_cx_pushloop_for(pTHX_ PERL_CONTEXT *cx, void *itervarp, SV* itersave) |
1554
|
|
|
|
|
|
|
{ |
1555
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_PUSHLOOP_FOR; |
1556
|
|
|
|
|
|
|
|
1557
|
|
|
|
|
|
|
/* this one line is common with cx_pushloop_plain */ |
1558
|
|
|
|
|
|
|
cx->blk_loop.my_op = cLOOP; |
1559
|
|
|
|
|
|
|
|
1560
|
|
|
|
|
|
|
cx->blk_loop.itervar_u.svp = (SV**)itervarp; |
1561
|
|
|
|
|
|
|
cx->blk_loop.itersave = itersave; |
1562
|
|
|
|
|
|
|
#ifdef USE_ITHREADS |
1563
|
|
|
|
|
|
|
cx->blk_loop.oldcomppad = PL_comppad; |
1564
|
|
|
|
|
|
|
#endif |
1565
|
|
|
|
|
|
|
} |
1566
|
|
|
|
|
|
|
|
1567
|
|
|
|
|
|
|
|
1568
|
|
|
|
|
|
|
/* pop all loop types, including plain */ |
1569
|
|
|
|
|
|
|
|
1570
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1571
|
|
|
|
|
|
|
S_cx_poploop(pTHX_ PERL_CONTEXT *cx) |
1572
|
|
|
|
|
|
|
{ |
1573
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPLOOP; |
1574
|
|
|
|
|
|
|
|
1575
|
|
|
|
|
|
|
assert(CxTYPE_is_LOOP(cx)); |
1576
|
|
|
|
|
|
|
if ( CxTYPE(cx) == CXt_LOOP_ARY |
1577
|
|
|
|
|
|
|
|| CxTYPE(cx) == CXt_LOOP_LAZYSV) |
1578
|
|
|
|
|
|
|
{ |
1579
|
|
|
|
|
|
|
/* Free ary or cur. This assumes that state_u.ary.ary |
1580
|
|
|
|
|
|
|
* aligns with state_u.lazysv.cur. See cx_dup() */ |
1581
|
|
|
|
|
|
|
SV *sv = cx->blk_loop.state_u.lazysv.cur; |
1582
|
|
|
|
|
|
|
cx->blk_loop.state_u.lazysv.cur = NULL; |
1583
|
|
|
|
|
|
|
SvREFCNT_dec_NN(sv); |
1584
|
|
|
|
|
|
|
if (CxTYPE(cx) == CXt_LOOP_LAZYSV) { |
1585
|
|
|
|
|
|
|
sv = cx->blk_loop.state_u.lazysv.end; |
1586
|
|
|
|
|
|
|
cx->blk_loop.state_u.lazysv.end = NULL; |
1587
|
|
|
|
|
|
|
SvREFCNT_dec_NN(sv); |
1588
|
|
|
|
|
|
|
} |
1589
|
|
|
|
|
|
|
} |
1590
|
|
|
|
|
|
|
if (cx->cx_type & (CXp_FOR_PAD|CXp_FOR_GV)) { |
1591
|
|
|
|
|
|
|
SV *cursv; |
1592
|
|
|
|
|
|
|
SV **svp = (cx)->blk_loop.itervar_u.svp; |
1593
|
|
|
|
|
|
|
if ((cx->cx_type & CXp_FOR_GV)) |
1594
|
|
|
|
|
|
|
svp = &GvSV((GV*)svp); |
1595
|
|
|
|
|
|
|
cursv = *svp; |
1596
|
|
|
|
|
|
|
*svp = cx->blk_loop.itersave; |
1597
|
|
|
|
|
|
|
cx->blk_loop.itersave = NULL; |
1598
|
|
|
|
|
|
|
SvREFCNT_dec(cursv); |
1599
|
|
|
|
|
|
|
} |
1600
|
|
|
|
|
|
|
} |
1601
|
|
|
|
|
|
|
|
1602
|
|
|
|
|
|
|
|
1603
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1604
|
|
|
|
|
|
|
S_cx_pushwhen(pTHX_ PERL_CONTEXT *cx) |
1605
|
|
|
|
|
|
|
{ |
1606
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_PUSHWHEN; |
1607
|
|
|
|
|
|
|
|
1608
|
|
|
|
|
|
|
cx->blk_givwhen.leave_op = cLOGOP->op_other; |
1609
|
|
|
|
|
|
|
} |
1610
|
|
|
|
|
|
|
|
1611
|
|
|
|
|
|
|
|
1612
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1613
|
|
|
|
|
|
|
S_cx_popwhen(pTHX_ PERL_CONTEXT *cx) |
1614
|
|
|
|
|
|
|
{ |
1615
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPWHEN; |
1616
|
|
|
|
|
|
|
assert(CxTYPE(cx) == CXt_WHEN); |
1617
|
|
|
|
|
|
|
|
1618
|
|
|
|
|
|
|
PERL_UNUSED_ARG(cx); |
1619
|
|
|
|
|
|
|
PERL_UNUSED_CONTEXT; |
1620
|
|
|
|
|
|
|
/* currently NOOP */ |
1621
|
|
|
|
|
|
|
} |
1622
|
|
|
|
|
|
|
|
1623
|
|
|
|
|
|
|
|
1624
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1625
|
|
|
|
|
|
|
S_cx_pushgiven(pTHX_ PERL_CONTEXT *cx, SV *orig_defsv) |
1626
|
|
|
|
|
|
|
{ |
1627
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_PUSHGIVEN; |
1628
|
|
|
|
|
|
|
|
1629
|
|
|
|
|
|
|
cx->blk_givwhen.leave_op = cLOGOP->op_other; |
1630
|
|
|
|
|
|
|
cx->blk_givwhen.defsv_save = orig_defsv; |
1631
|
|
|
|
|
|
|
} |
1632
|
|
|
|
|
|
|
|
1633
|
|
|
|
|
|
|
|
1634
|
|
|
|
|
|
|
PERL_STATIC_INLINE void |
1635
|
|
|
|
|
|
|
S_cx_popgiven(pTHX_ PERL_CONTEXT *cx) |
1636
|
|
|
|
|
|
|
{ |
1637
|
|
|
|
|
|
|
SV *sv; |
1638
|
|
|
|
|
|
|
|
1639
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_CX_POPGIVEN; |
1640
|
|
|
|
|
|
|
assert(CxTYPE(cx) == CXt_GIVEN); |
1641
|
|
|
|
|
|
|
|
1642
|
|
|
|
|
|
|
sv = GvSV(PL_defgv); |
1643
|
|
|
|
|
|
|
GvSV(PL_defgv) = cx->blk_givwhen.defsv_save; |
1644
|
|
|
|
|
|
|
cx->blk_givwhen.defsv_save = NULL; |
1645
|
|
|
|
|
|
|
SvREFCNT_dec(sv); |
1646
|
|
|
|
|
|
|
} |
1647
|
|
|
|
|
|
|
|
1648
|
|
|
|
|
|
|
/* ------------------ util.h ------------------------------------------- */ |
1649
|
|
|
|
|
|
|
|
1650
|
|
|
|
|
|
|
/* |
1651
|
|
|
|
|
|
|
=head1 Miscellaneous Functions |
1652
|
|
|
|
|
|
|
|
1653
|
|
|
|
|
|
|
=for apidoc foldEQ |
1654
|
|
|
|
|
|
|
|
1655
|
|
|
|
|
|
|
Returns true if the leading C bytes of the strings C and C are the |
1656
|
|
|
|
|
|
|
same |
1657
|
|
|
|
|
|
|
case-insensitively; false otherwise. Uppercase and lowercase ASCII range bytes |
1658
|
|
|
|
|
|
|
match themselves and their opposite case counterparts. Non-cased and non-ASCII |
1659
|
|
|
|
|
|
|
range bytes match only themselves. |
1660
|
|
|
|
|
|
|
|
1661
|
|
|
|
|
|
|
=cut |
1662
|
|
|
|
|
|
|
*/ |
1663
|
|
|
|
|
|
|
|
1664
|
|
|
|
|
|
|
PERL_STATIC_INLINE I32 |
1665
|
|
|
|
|
|
|
Perl_foldEQ(const char *s1, const char *s2, I32 len) |
1666
|
|
|
|
|
|
|
{ |
1667
|
|
|
|
|
|
|
const U8 *a = (const U8 *)s1; |
1668
|
|
|
|
|
|
|
const U8 *b = (const U8 *)s2; |
1669
|
|
|
|
|
|
|
|
1670
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_FOLDEQ; |
1671
|
|
|
|
|
|
|
|
1672
|
|
|
|
|
|
|
assert(len >= 0); |
1673
|
|
|
|
|
|
|
|
1674
|
|
|
|
|
|
|
while (len--) { |
1675
|
|
|
|
|
|
|
if (*a != *b && *a != PL_fold[*b]) |
1676
|
|
|
|
|
|
|
return 0; |
1677
|
|
|
|
|
|
|
a++,b++; |
1678
|
|
|
|
|
|
|
} |
1679
|
|
|
|
|
|
|
return 1; |
1680
|
|
|
|
|
|
|
} |
1681
|
|
|
|
|
|
|
|
1682
|
|
|
|
|
|
|
PERL_STATIC_INLINE I32 |
1683
|
|
|
|
|
|
|
Perl_foldEQ_latin1(const char *s1, const char *s2, I32 len) |
1684
|
|
|
|
|
|
|
{ |
1685
|
|
|
|
|
|
|
/* Compare non-utf8 using Unicode (Latin1) semantics. Does not work on |
1686
|
|
|
|
|
|
|
* MICRO_SIGN, LATIN_SMALL_LETTER_SHARP_S, nor |
1687
|
|
|
|
|
|
|
* LATIN_SMALL_LETTER_Y_WITH_DIAERESIS, and does not check for these. Nor |
1688
|
|
|
|
|
|
|
* does it check that the strings each have at least 'len' characters */ |
1689
|
|
|
|
|
|
|
|
1690
|
|
|
|
|
|
|
const U8 *a = (const U8 *)s1; |
1691
|
|
|
|
|
|
|
const U8 *b = (const U8 *)s2; |
1692
|
|
|
|
|
|
|
|
1693
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_FOLDEQ_LATIN1; |
1694
|
|
|
|
|
|
|
|
1695
|
|
|
|
|
|
|
assert(len >= 0); |
1696
|
|
|
|
|
|
|
|
1697
|
|
|
|
|
|
|
while (len--) { |
1698
|
|
|
|
|
|
|
if (*a != *b && *a != PL_fold_latin1[*b]) { |
1699
|
|
|
|
|
|
|
return 0; |
1700
|
|
|
|
|
|
|
} |
1701
|
|
|
|
|
|
|
a++, b++; |
1702
|
|
|
|
|
|
|
} |
1703
|
|
|
|
|
|
|
return 1; |
1704
|
|
|
|
|
|
|
} |
1705
|
|
|
|
|
|
|
|
1706
|
|
|
|
|
|
|
/* |
1707
|
|
|
|
|
|
|
=for apidoc foldEQ_locale |
1708
|
|
|
|
|
|
|
|
1709
|
|
|
|
|
|
|
Returns true if the leading C bytes of the strings C and C are the |
1710
|
|
|
|
|
|
|
same case-insensitively in the current locale; false otherwise. |
1711
|
|
|
|
|
|
|
|
1712
|
|
|
|
|
|
|
=cut |
1713
|
|
|
|
|
|
|
*/ |
1714
|
|
|
|
|
|
|
|
1715
|
|
|
|
|
|
|
PERL_STATIC_INLINE I32 |
1716
|
|
|
|
|
|
|
Perl_foldEQ_locale(const char *s1, const char *s2, I32 len) |
1717
|
|
|
|
|
|
|
{ |
1718
|
|
|
|
|
|
|
dVAR; |
1719
|
|
|
|
|
|
|
const U8 *a = (const U8 *)s1; |
1720
|
|
|
|
|
|
|
const U8 *b = (const U8 *)s2; |
1721
|
|
|
|
|
|
|
|
1722
|
|
|
|
|
|
|
PERL_ARGS_ASSERT_FOLDEQ_LOCALE; |
1723
|
|
|
|
|
|
|
|
1724
|
|
|
|
|
|
|
assert(len >= 0); |
1725
|
|
|
|
|
|
|
|
1726
|
|
|
|
|
|
|
while (len--) { |
1727
|
|
|
|
|
|
|
if (*a != *b && *a != PL_fold_locale[*b]) |
1728
|
|
|
|
|
|
|
return 0; |
1729
|
|
|
|
|
|
|
a++,b++; |
1730
|
|
|
|
|
|
|
} |
1731
|
|
|
|
|
|
|
return 1; |
1732
|
|
|
|
|
|
|
} |
1733
|
|
|
|
|
|
|
|
1734
|
|
|
|
|
|
|
/* |
1735
|
|
|
|
|
|
|
* ex: set ts=8 sts=4 sw=4 et: |
1736
|
|
|
|
|
|
|
*/ |