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atom_concat and empty atoms

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This commit is contained in:
Vitor Santos Costa 2017-10-18 17:03:23 +01:00
parent 8baaa70cec
commit 861f185ec6
3 changed files with 826 additions and 823 deletions
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2
C/atomic.c
View File

@ -1333,7 +1333,7 @@ restart_aux:
} }
while (t1 != TermNil) { while (t1 != TermNil) {
inpv[i].type = YAP_STRING_ATOM; inpv[i].type = YAP_STRING_ATOM,
inpv[i].val.t = HeadOfTerm(t1); inpv[i].val.t = HeadOfTerm(t1);
i++; i++;
t1 = TailOfTerm(t1); t1 = TailOfTerm(t1);

115
C/text.c
View File

@ -83,9 +83,9 @@ void *pop_output_text_stack__(int i, void *export) {
struct mblock *p = LOCAL_TextBuffer->first[lvl]; struct mblock *p = LOCAL_TextBuffer->first[lvl];
while (p) { while (p) {
struct mblock *np = p->next; struct mblock *np = p->next;
if (p+1 == export) { if (p + 1 == export) {
size_t sz = p->sz; size_t sz = p->sz;
memcpy(p, p+1, sz); memcpy(p, p + 1, sz);
export = p; export = p;
} else { } else {
free(p); free(p);
@ -309,9 +309,9 @@ static unsigned char *latin2utf8(seq_tv_t *inp) {
} }
*pt++ = '\0'; *pt++ = '\0';
return buf; return buf;
} }
static unsigned char *wchar2utf8(seq_tv_t *inp) { static unsigned char *wchar2utf8(seq_tv_t *inp) {
size_t sz = wcslen(inp->val.w) * 4; size_t sz = wcslen(inp->val.w) * 4;
wchar_t *b0 = inp->val.w; wchar_t *b0 = inp->val.w;
unsigned char *buf = Malloc(sz + 1), *pt = buf; unsigned char *buf = Malloc(sz + 1), *pt = buf;
@ -322,36 +322,36 @@ static unsigned char *latin2utf8(seq_tv_t *inp) {
pt += put_utf8(pt, ch); pt += put_utf8(pt, ch);
*pt++ = '\0'; *pt++ = '\0';
return buf; return buf;
} }
static void *slice(size_t min, size_t max, const unsigned char *buf USES_REGS); static void *slice(size_t min, size_t max, const unsigned char *buf USES_REGS);
static unsigned char *Yap_ListOfCodesToBuffer(unsigned char *buf, Term t, static unsigned char *Yap_ListOfCodesToBuffer(unsigned char *buf, Term t,
seq_tv_t *inp USES_REGS) { seq_tv_t *inp USES_REGS) {
bool codes; bool codes;
unsigned char *nbuf = codes2buf(t, buf, &codes PASS_REGS); unsigned char *nbuf = codes2buf(t, buf, &codes PASS_REGS);
if (!codes) if (!codes)
return NULL; return NULL;
return nbuf; return nbuf;
} }
static unsigned char *Yap_ListOfAtomsToBuffer(unsigned char *buf, Term t, static unsigned char *Yap_ListOfAtomsToBuffer(unsigned char *buf, Term t,
seq_tv_t *inp USES_REGS) { seq_tv_t *inp USES_REGS) {
bool codes; bool codes;
unsigned char *nbuf = codes2buf(t, buf, &codes PASS_REGS); unsigned char *nbuf = codes2buf(t, buf, &codes PASS_REGS);
if (codes) if (codes)
return NULL; return NULL;
return nbuf; return nbuf;
} }
static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t, static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t,
seq_tv_t *inp USES_REGS) { seq_tv_t *inp USES_REGS) {
unsigned char *nbuf = codes2buf(t, buf, NULL PASS_REGS); unsigned char *nbuf = codes2buf(t, buf, NULL PASS_REGS);
return nbuf; return nbuf;
} }
#if USE_GEN_TYPE_ERROR #if USE_GEN_TYPE_ERROR
static yap_error_number gen_type_error(int flags) { static yap_error_number gen_type_error(int flags) {
if ((flags & (YAP_STRING_STRING | YAP_STRING_ATOM | YAP_STRING_INT | if ((flags & (YAP_STRING_STRING | YAP_STRING_ATOM | YAP_STRING_INT |
YAP_STRING_FLOAT | YAP_STRING_ATOMS_CODES | YAP_STRING_BIG)) == YAP_STRING_FLOAT | YAP_STRING_ATOMS_CODES | YAP_STRING_BIG)) ==
(YAP_STRING_STRING | YAP_STRING_ATOM | YAP_STRING_INT | YAP_STRING_FLOAT | (YAP_STRING_STRING | YAP_STRING_ATOM | YAP_STRING_INT | YAP_STRING_FLOAT |
@ -372,12 +372,12 @@ static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t,
if (flags & (YAP_STRING_CODES | YAP_STRING_ATOMS)) if (flags & (YAP_STRING_CODES | YAP_STRING_ATOMS))
return TYPE_ERROR_LIST; return TYPE_ERROR_LIST;
return TYPE_ERROR_NUMBER; return TYPE_ERROR_NUMBER;
} }
#endif #endif
// static int cnt; // static int cnt;
unsigned char *Yap_readText(seq_tv_t *inp USES_REGS) { unsigned char *Yap_readText(seq_tv_t *inp USES_REGS) {
/* we know what the term is */ /* we know what the term is */
if (!(inp->type & (YAP_STRING_CHARS | YAP_STRING_WCHARS))) { if (!(inp->type & (YAP_STRING_CHARS | YAP_STRING_WCHARS))) {
@ -499,9 +499,9 @@ static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t,
return wchar2utf8(inp); return wchar2utf8(inp);
} }
return NULL; return NULL;
} }
static Term write_strings(unsigned char *s0, seq_tv_t *out USES_REGS) { static Term write_strings(unsigned char *s0, seq_tv_t *out USES_REGS) {
size_t min = 0, max = strlen((char *)s0); size_t min = 0, max = strlen((char *)s0);
if (out->type & (YAP_STRING_NCHARS | YAP_STRING_TRUNC)) { if (out->type & (YAP_STRING_NCHARS | YAP_STRING_TRUNC)) {
@ -529,9 +529,9 @@ static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t,
out->val.t = t; out->val.t = t;
return out->val.t; return out->val.t;
} }
static Term write_atoms(void *s0, seq_tv_t *out USES_REGS) { static Term write_atoms(void *s0, seq_tv_t *out USES_REGS) {
Term t = AbsPair(HR); Term t = AbsPair(HR);
char *s1 = (char *)s0; char *s1 = (char *)s0;
size_t sz = 0; size_t sz = 0;
@ -581,9 +581,9 @@ static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t,
} }
out->val.t = t; out->val.t = t;
return (t); return (t);
} }
static Term write_codes(void *s0, seq_tv_t *out USES_REGS) { static Term write_codes(void *s0, seq_tv_t *out USES_REGS) {
Term t; Term t;
size_t sz = strlen(s0); size_t sz = strlen(s0);
if (sz == 0) { if (sz == 0) {
@ -618,9 +618,9 @@ static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t,
} }
out->val.t = t; out->val.t = t;
return (t); return (t);
} }
static Atom write_atom(void *s0, seq_tv_t *out USES_REGS) { static Atom write_atom(void *s0, seq_tv_t *out USES_REGS) {
unsigned char *s = s0; unsigned char *s = s0;
int32_t ch; int32_t ch;
size_t leng = strlen(s0); size_t leng = strlen(s0);
@ -635,9 +635,9 @@ static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t,
memcpy(buf, s0, n + 1); memcpy(buf, s0, n + 1);
return Yap_ULookupAtom(buf); return Yap_ULookupAtom(buf);
} }
} }
void *write_buffer(unsigned char *s0, seq_tv_t *out USES_REGS) { void *write_buffer(unsigned char *s0, seq_tv_t *out USES_REGS) {
size_t leng = strlen((char *)s0); size_t leng = strlen((char *)s0);
size_t min = 0, max = leng; size_t min = 0, max = leng;
if (out->enc == ENC_ISO_UTF8) { if (out->enc == ENC_ISO_UTF8) {
@ -702,7 +702,7 @@ static unsigned char *Yap_ListToBuffer(unsigned char *buf, Term t,
return NULL; return NULL;
} }
return out->val.c; return out->val.c;
} }
static size_t write_length(const unsigned char *s0, seq_tv_t *out USES_REGS) { static size_t write_length(const unsigned char *s0, seq_tv_t *out USES_REGS) {
return strlen_utf8(s0); return strlen_utf8(s0);
@ -797,9 +797,9 @@ bool write_Text(unsigned char *inp, seq_tv_t *out USES_REGS) {
default: { return true; } default: { return true; }
} }
return false; return false;
} }
static size_t upcase(void *s0, seq_tv_t *out USES_REGS) { static size_t upcase(void *s0, seq_tv_t *out USES_REGS) {
unsigned char *s = s0; unsigned char *s = s0;
while (*s) { while (*s) {
@ -810,9 +810,9 @@ bool write_Text(unsigned char *inp, seq_tv_t *out USES_REGS) {
s += put_utf8(s, chr); s += put_utf8(s, chr);
} }
return true; return true;
} }
static size_t downcase(void *s0, seq_tv_t *out USES_REGS) { static size_t downcase(void *s0, seq_tv_t *out USES_REGS) {
unsigned char *s = s0; unsigned char *s = s0;
while (*s) { while (*s) {
@ -823,9 +823,9 @@ bool write_Text(unsigned char *inp, seq_tv_t *out USES_REGS) {
s += put_utf8(s, chr); s += put_utf8(s, chr);
} }
return true; return true;
} }
bool Yap_CVT_Text(seq_tv_t *inp, seq_tv_t *out USES_REGS) { bool Yap_CVT_Text(seq_tv_t *inp, seq_tv_t *out USES_REGS) {
unsigned char *buf; unsigned char *buf;
bool rc; bool rc;
/* /*
@ -888,9 +888,9 @@ bool write_Text(unsigned char *inp, seq_tv_t *out USES_REGS) {
fprintf(stderr, "\n]\n"); */ fprintf(stderr, "\n]\n"); */
pop_text_stack(l); pop_text_stack(l);
return rc; return rc;
} }
static unsigned char *concat(int n, void *sv[] USES_REGS) { static unsigned char *concat(int n, void *sv[] USES_REGS) {
void *buf; void *buf;
unsigned char *buf0; unsigned char *buf0;
size_t room = 0; size_t room = 0;
@ -915,9 +915,9 @@ bool write_Text(unsigned char *inp, seq_tv_t *out USES_REGS) {
#endif #endif
} }
return buf0; return buf0;
} }
static void *slice(size_t min, size_t max, const unsigned char *buf USES_REGS) { static void *slice(size_t min, size_t max, const unsigned char *buf USES_REGS) {
unsigned char *nbuf = BaseMalloc((max - min) * 4 + 1); unsigned char *nbuf = BaseMalloc((max - min) * 4 + 1);
const unsigned char *ptr = skip_utf8(buf, min); const unsigned char *ptr = skip_utf8(buf, min);
unsigned char *nptr = nbuf; unsigned char *nptr = nbuf;
@ -929,11 +929,11 @@ bool write_Text(unsigned char *inp, seq_tv_t *out USES_REGS) {
} }
nptr[0] = '\0'; nptr[0] = '\0';
return nbuf; return nbuf;
} }
// //
// Out must be an atom or a string // Out must be an atom or a string
bool Yap_Concat_Text(int tot, seq_tv_t inp[], seq_tv_t *out USES_REGS) { bool Yap_Concat_Text(int tot, seq_tv_t inp[], seq_tv_t *out USES_REGS) {
void **bufv; void **bufv;
unsigned char *buf; unsigned char *buf;
int i, j; int i, j;
@ -949,8 +949,8 @@ bool write_Text(unsigned char *inp, seq_tv_t *out USES_REGS) {
if (!nbuf) { if (!nbuf) {
return NULL; return NULL;
} }
if (!nbuf[0]) // if (!nbuf[0])
continue; // continue;
bufv[j++] = nbuf; bufv[j++] = nbuf;
} }
if (j == 0) { if (j == 0) {
@ -964,7 +964,7 @@ bool write_Text(unsigned char *inp, seq_tv_t *out USES_REGS) {
bool rc = write_Text(buf, out PASS_REGS); bool rc = write_Text(buf, out PASS_REGS);
return rc; return rc;
} }
// //
bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp, bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp,
@ -1041,9 +1041,9 @@ bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp,
} }
return true; return true;
} }
/** /**
* Function to convert a generic text term (string, atom, list of codes, list * Function to convert a generic text term (string, atom, list of codes, list
of< of<
atoms) into a buff atoms) into a buff
@ -1057,12 +1057,13 @@ bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp,
* *
* @return the buffer, or NULL in case of failure. If so, Yap_Error may be * @return the buffer, or NULL in case of failure. If so, Yap_Error may be
called. called.
*/ */
const char *Yap_TextTermToText(Term t USES_REGS) { const char *Yap_TextTermToText(Term t USES_REGS) {
seq_tv_t inp, out; seq_tv_t inp, out;
inp.val.t = t; inp.val.t = t;
inp.type = Yap_TextType(t); inp.type = Yap_TextType(t);
inp.type = YAP_STRING_ATOM | YAP_STRING_STRING | YAP_STRING_ATOMS_CODES| YAP_STRING_TERM; inp.type = YAP_STRING_ATOM | YAP_STRING_STRING | YAP_STRING_ATOMS_CODES |
YAP_STRING_TERM;
inp.enc = ENC_ISO_UTF8; inp.enc = ENC_ISO_UTF8;
out.enc = ENC_ISO_UTF8; out.enc = ENC_ISO_UTF8;
out.type = YAP_STRING_CHARS; out.type = YAP_STRING_CHARS;
@ -1070,9 +1071,9 @@ bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp,
if (!Yap_CVT_Text(&inp, &out PASS_REGS)) if (!Yap_CVT_Text(&inp, &out PASS_REGS))
return NULL; return NULL;
return out.val.c; return out.val.c;
} }
/** /**
* Convert from a predicate structure to an UTF-8 string of the form * Convert from a predicate structure to an UTF-8 string of the form
* *
* module:name/arity. * module:name/arity.
@ -1083,7 +1084,7 @@ bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp,
* *
* @return the temporary string * @return the temporary string
*/ */
const char *Yap_PredIndicatorToUTF8String(PredEntry *ap) { const char *Yap_PredIndicatorToUTF8String(PredEntry *ap) {
CACHE_REGS CACHE_REGS
Atom at; Atom at;
arity_t arity = 0; arity_t arity = 0;
@ -1131,15 +1132,15 @@ bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp,
at = (Atom)(ap->FunctorOfPred); at = (Atom)(ap->FunctorOfPred);
} }
} }
if (!stpcpy(s,Yap_AtomToUTF8Text(at))) { if (!stpcpy(s, Yap_AtomToUTF8Text(at))) {
return NULL; return NULL;
} }
s += strlen(s); s += strlen(s);
snprintf(s, smax - s, "/%" PRIdPTR, arity); snprintf(s, smax - s, "/%" PRIdPTR, arity);
return s0; return s0;
} }
/** /**
* Convert from a text buffer (8-bit) to a term that has the same type as * Convert from a text buffer (8-bit) to a term that has the same type as
* _Tguide_ * _Tguide_
* *
@ -1147,8 +1148,8 @@ bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp,
≈ * @param tguide the guide ≈ * @param tguide the guide
* *
≈ * @return the term ≈ * @return the term
*/ */
Term Yap_MkTextTerm(const char *s, int guide USES_REGS) { Term Yap_MkTextTerm(const char *s, int guide USES_REGS) {
if (guide == YAP_STRING_ATOM) { if (guide == YAP_STRING_ATOM) {
return MkAtomTerm(Yap_LookupAtom(s)); return MkAtomTerm(Yap_LookupAtom(s));
} else if (guide == YAP_STRING_STRING) { } else if (guide == YAP_STRING_STRING) {
@ -1158,4 +1159,4 @@ bool Yap_Splice_Text(int n, size_t cuts[], seq_tv_t *inp,
} else { } else {
return Yap_CharsToListOfCodes(s, ENC_ISO_UTF8 PASS_REGS); return Yap_CharsToListOfCodes(s, ENC_ISO_UTF8 PASS_REGS);
} }
} }

38
os/charsio.c
View File

@ -1,19 +1,19 @@
/************************************************************************* /*************************************************************************
* * * *
* YAP Prolog * * YAP Prolog *
* * * *
* Yap Prolog was developed at NCCUP - Universidade do Porto * * Yap Prolog was developed at NCCUP - Universidade do Porto *
* * * *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 * * Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* * * *
************************************************************************** **************************************************************************
* * * *
* File: charcodes.c * * File: charcodes.c *
* Last rev: 5/2/88 * * Last rev: 5/2/88 *
* mods: * * mods: *
* comments: Character codes and character conversion * * comments: Character codes and character conversion *
* * * *
*************************************************************************/ *************************************************************************/
#ifdef SCCS #ifdef SCCS
static char SccsId[] = "%W% %G%"; static char SccsId[] = "%W% %G%";
#endif #endif
@ -1102,9 +1102,10 @@ static Int peek_char(USES_REGS1) {
unsigned char sinp[16]; unsigned char sinp[16];
Int ch; Int ch;
if (sno < 0) if (sno < 0)
return false; return false;
if ((ch = Yap_peek(sno)) < 0) { Int ch = Yap_peek(sno);
if (ch < 0) {
UNLOCK(GLOBAL_Stream[sno].streamlock); UNLOCK(GLOBAL_Stream[sno].streamlock);
return Yap_unify_constant(ARG2, MkAtomTerm(AtomEof)); return Yap_unify_constant(ARG2, MkAtomTerm(AtomEof));
} }
@ -1114,7 +1115,8 @@ if (sno < 0)
return false; return false;
} }
sinp[off] = '\0'; sinp[off] = '\0';
return Yap_unify_constant(ARG2, MkAtomTerm(Yap_ULookupAtom(sinp))); printf("%s\n", simp) return Yap_unify_constant(
ARG2, MkAtomTerm(Yap_ULookupAtom(sinp)));
} }
/** @pred peek_char( - _C_) is iso /** @pred peek_char( - _C_) is iso