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absolute_file_name support.

This commit is contained in:
Vítor Santos Costa 2015-11-09 11:31:58 +00:00
parent 4b74421a36
commit 759ff81e39
4 changed files with 113 additions and 29 deletions
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4
os/readline.c
View File

@ -217,7 +217,7 @@ InitReadline(void) {
#endif
rl_outstream = stderr;
using_history();
char *s = Yap_AbsoluteFile("~/.YAP.history",NULL);
char *s = Yap_AbsoluteFile("~/.YAP.history",NULL,true);
if (!read_history (s))
{ FILE *f = fopen(s, "w");
if (f) {
@ -275,7 +275,7 @@ getLine( int inp, int out )
return false;
if (myrl_line[0] != '\0' && myrl_line[1] != '\0') {
add_history (myrl_line);
write_history ( Yap_AbsoluteFile("~/.YAP.history", NULL));
write_history ( Yap_AbsoluteFile("~/.YAP.history", NULL, true));
}
s->u.irl.ptr = s->u.irl.buf = myrl_line;
return true;

6
os/readterm.c
View File

@ -412,8 +412,6 @@ static xarg *setReadEnv(Term opts, FEnv *fe, struct renv *re, int inp_stream) {
}
if (args[READ_SINGLETONS].used) {
fe->sp = args[READ_SINGLETONS].tvalue;
} else if (args[READ_SINGLETONS].used) {
fe->sp = MkVarTerm();
} else {
fe->sp = 0;
}
@ -872,7 +870,7 @@ static xarg *setClauseReadEnv(Term opts, FEnv *fe, struct renv *re,
fe->tp = 0;
}
if (trueLocalPrologFlag(SINGLE_VAR_WARNINGS_FLAG)) {
fe->sp = MkVarTerm();
fe->sp = TermNil;
} else {
fe->sp = 0;
}
@ -902,7 +900,7 @@ static xarg *setClauseReadEnv(Term opts, FEnv *fe, struct renv *re,
static bool complete_clause_processing(FEnv *fe, TokEntry *tokstart, Term t) {
CACHE_REGS
Term v1, v2, v3;
Term v1, v2, v3 = TermNil;
{
fe->old_H = HR;
while (TRUE) {

130
os/sysbits.c
View File

@ -452,7 +452,7 @@ PrologPath(const char *Y, char *X) {
static bool ChDir(const char *path) {
bool rc = false;
char *qpath = Yap_AbsoluteFile(path, NULL);
char *qpath = Yap_AbsoluteFile(path, NULL, true);
#ifdef __ANDROID__
if (GLOBAL_AssetsWD) {
@ -562,18 +562,17 @@ static char *myrealpath( const char *path, char *out)
#endif
}
char *
Yap_AbsoluteFile(const char *spec, char *tmp)
static char *
PrologExpandVars(const char *spec, char *tmp, bool ok_to)
{
char *rc;
char o[YAP_FILENAME_MAX+1];
#if _WIN32 || defined(__MINGW32__)
char u[YAP_FILENAME_MAX+1];
// first pass, remove Unix style stuff
if (unix2win(spec, u, YAP_FILENAME_MAX) == NULL)
return NULL;
spec = (const char *)u;
spec = u;
#endif
if (tmp == NULL) {
tmp = malloc(YAP_FILENAME_MAX+1);
@ -581,16 +580,106 @@ Yap_AbsoluteFile(const char *spec, char *tmp)
return NULL;
}
}
if ( 1 || trueGlobalPrologFlag(FILE_NAME_VARIABLES_FLAG) )
if ( ok_to )
{
spec=expandVars(spec,o,YAP_FILENAME_MAX);
tmp=expandVars(spec,tmp,YAP_FILENAME_MAX);
}
#if HAVE_REALPATH
rc = myrealpath(spec, tmp);
#endif
else
{
free(tmp);
tmp = (char *)spec;
}
return tmp;
}
/**
* generate absolute path, if ok first expand SICStus Prolog style
*
* @param spec the file path, including ~ and $
* @param tmp where to store the file
* @param ok where to process ~and $
*
* @return tmp, or NULL
*/
char *
Yap_AbsoluteFile(const char *spec, char *tmp, bool ok)
{
char *t1 = NULL;
t1 = PrologExpandVars(spec, t1, ok);
if (!t1)
return NULL;
char *rc = myrealpath(t1, tmp);
return rc;
}
/**
* @pred prolog_expanded_file_system_path( +PrologPath, +ExpandVars, -OSPath )
*
* Apply basic transformations to paths, and conidtionally apply
* traditional SICStus-style variable expansion.
*
* @param PrologPath the source, may be atom or string
* @param ExpandVars expand initial occurrence of ~ or $
* @param ExpandVars expand initial occurrence of ~ or $
* @param Prefix add this path before _PrologPath_
* @param OSPath pathname.
*
* @return
*/
static Int
prolog_expanded_file_system_path( USES_REGS1 )
{
Term t1 = Deref(ARG1);
Term t2 = Deref(ARG2);
Term t3 = Deref(ARG3);
char *o = LOCAL_FileNameBuf;
bool flag;
const char *cmd, *p0;
if (IsAtomTerm(t1)) {
cmd = RepAtom(AtomOfTerm(t1))->StrOfAE;
} else if (IsStringTerm(t1)) {
cmd = StringOfTerm(t1);
} else {
return FALSE;
}
if (t2 == TermTrue)
flag = true;
else if (t2 == TermFalse)
flag = false;
else
return false;
if (IsAtomTerm(t3)) {
p0 = RepAtom(AtomOfTerm(t3))->StrOfAE;
} else if (IsStringTerm(t3)) {
p0 = StringOfTerm(t3);
} else {
return FALSE;
}
const char *out = PrologExpandVars(cmd,o,flag);
if (Yap_IsAbsolutePath(out)) {
return Yap_unify(MkAtomTerm(Yap_LookupAtom(out)), ARG4);
} else if (p0[0] == '\0') {
char *rc = myrealpath(out, LOCAL_FileNameBuf2 );
return Yap_unify(MkAtomTerm(Yap_LookupAtom(rc)), ARG4);
} else {
strncpy( LOCAL_FileNameBuf2, p0, YAP_FILENAME_MAX );
char *pt = LOCAL_FileNameBuf2 + strlen( LOCAL_FileNameBuf );
if ( !dir_separator( pt[-1] )) {
#if ATARI || _MSC_VER || defined(__MINGW32__)
pt[0] = '\\';
#else
pt[0] = '/';
#endif
pt++;
}
out = strncpy( pt, out, YAP_FILENAME_MAX -(pt -LOCAL_FileNameBuf2) );
char *rc = myrealpath(out, LOCAL_FileNameBuf );
return Yap_unify(MkAtomTerm(Yap_LookupAtom(rc)), ARG4);
}
}
#define EXPAND_FILENAME_DEFS() \
PAR("parameter_expansion", isatom, EXPAND_FILENAME_PARAMETER_EXPANSION), \
@ -834,7 +923,7 @@ static char *canoniseFileName( char *path) {
static Int
absolute_file_name( USES_REGS1 )
absolute_file_system_path( USES_REGS1 )
{
Term t = Deref(ARG1);
const char *fp;
@ -842,13 +931,13 @@ absolute_file_name( USES_REGS1 )
char s[MAXPATHLEN+1];
if (IsVarTerm(t)) {
Yap_Error(INSTANTIATION_ERROR, t, "absolute_file_name");
Yap_Error(INSTANTIATION_ERROR, t, "absolute_file_system_path");
return false;
} else if (!IsAtomTerm(t)) {
Yap_Error(TYPE_ERROR_ATOM, t, "absolute_file_name");
Yap_Error(TYPE_ERROR_ATOM, t, "absolute_file_system_path");
return false;
}
if (!(fp = Yap_AbsoluteFile( RepAtom(AtomOfTerm(t))->StrOfAE, s)))
if (!(fp = Yap_AbsoluteFile( RepAtom(AtomOfTerm(t))->StrOfAE, s, true)))
return false;
rc = Yap_unify(MkAtomTerm(Yap_LookupAtom(fp)), ARG2);
if (fp != s)
@ -1083,10 +1172,7 @@ commons_library( USES_REGS1 )
static Int
p_dir_sp ( USES_REGS1 )
{
#ifdef MAC
Term t = MkIntTerm(':');
Term t2 = MkIntTerm('/');
#elif ATARI || _MSC_VER || defined(__MINGW32__)
#if ATARI || _MSC_VER || defined(__MINGW32__)
Term t = MkIntTerm('\\');
Term t2 = MkIntTerm('/');
#else
@ -1202,7 +1288,7 @@ Yap_InitPageSize(void)
strncpy( ares2, root, YAP_FILENAME_MAX );
strncat( ares2, "/", YAP_FILENAME_MAX );
strncat( ares2, work, YAP_FILENAME_MAX );
return Yap_AbsoluteFile( ares2, result );
return Yap_AbsoluteFile( ares2, result , false);
} else {
// expand path
return myrealpath( work, result);
@ -2152,7 +2238,6 @@ Yap_InitPageSize(void)
void
Yap_InitSysPreds(void)
{
CACHE_REGS
Yap_InitCPred ("log_event", 1, p_log_event, SafePredFlag|SyncPredFlag);
Yap_InitCPred ("sh", 0, p_sh, SafePredFlag|SyncPredFlag);
Yap_InitCPred ("$shell", 1, p_shell, SafePredFlag|SyncPredFlag);
@ -2181,7 +2266,8 @@ Yap_InitPageSize(void)
#ifdef _WIN32
Yap_InitCPred ("win_registry_get_value", 3, p_win_registry_get_value,0);
#endif
Yap_InitCPred ("absolute_file_name", 2, absolute_file_name, 0);
Yap_InitCPred ("absolute_file_system_path", 2, absolute_file_system_path, 0);
Yap_InitCPred ("prolog_expanded_file_system_path", 4, prolog_expanded_file_system_path, 0);
Yap_InitCPred ("true_file_name", 2,
true_file_name, SyncPredFlag);
Yap_InitCPred ("true_file_name", 3, true_file_name3, SyncPredFlag);

2
os/yapio.h
View File

@ -114,7 +114,7 @@ int Yap_growtrail_in_parser(tr_fr_ptr *, TokEntry **, VarEntry **);
bool Yap_IsAbsolutePath(const char *p);
Atom Yap_TemporaryFile(const char *prefix, int *fd);
char *Yap_AbsoluteFile(const char *spec, char *tmp);
char *Yap_AbsoluteFile(const char *spec, char *tmp, bool expand);
typedef enum mem_buf_source {
MEM_BUF_CODE = 1,