LispObj *
Lisp_RenameFile(LispBuiltin *builtin)
/*
rename-file filename new-name
*/
{
int code;
GC_ENTER();
char *from, *to;
LispObj *old_truename, *new_truename;
LispObj *filename, *new_name;
new_name = ARGUMENT(1);
filename = ARGUMENT(0);
if (STRINGP(filename)) {
filename = APPLY1(Oparse_namestring, filename);
GC_PROTECT(filename);
}
else if (STREAMP(filename)) {
if (filename->data.stream.type != LispStreamFile)
LispDestroy("%s: %s is not a FILE-STREAM",
STRFUN(builtin), STROBJ(filename));
filename = filename->data.stream.pathname;
}
else {
CHECK_PATHNAME(filename);
}
old_truename = APPLY1(Otruename, filename);
GC_PROTECT(old_truename);
if (STRINGP(new_name)) {
new_name = APPLY3(Oparse_namestring, new_name, NIL, filename);
GC_PROTECT(new_name);
}
else {
CHECK_PATHNAME(new_name);
}
from = THESTR(CAR(filename->data.pathname));
to = THESTR(CAR(new_name->data.pathname));
code = LispRename(from, to);
if (code)
LispDestroy("%s: rename(%s, %s): %s",
STRFUN(builtin), from, to, strerror(errno));
GC_LEAVE();
new_truename = APPLY1(Otruename, new_name);
RETURN_COUNT = 2;
RETURN(0) = old_truename;
RETURN(1) = new_truename;
return (new_name);
}
LispObj *
Lisp_DeleteFile(LispBuiltin *builtin)
/*
delete-file filename
*/
{
GC_ENTER();
LispObj *filename;
filename = ARGUMENT(0);
if (STRINGP(filename)) {
filename = APPLY1(Oparse_namestring, filename);
GC_PROTECT(filename);
}
else if (STREAMP(filename)) {
if (filename->data.stream.type != LispStreamFile)
LispDestroy("%s: %s is not a FILE-STREAM",
STRFUN(builtin), STROBJ(filename));
filename = filename->data.stream.pathname;
}
else {
CHECK_PATHNAME(filename);
}
GC_LEAVE();
return (LispUnlink(THESTR(CAR(filename->data.pathname))) ? NIL : T);
}
LispObj *
Lisp_PQfnumber(LispBuiltin *builtin)
/*
pq-fnumber result field-name
*/
{
int number;
int field;
PGresult *res;
LispObj *result, *field_name;
field_name = ARGUMENT(1);
result = ARGUMENT(0);
if (!CHECKO(result, PGresult_t))
LispDestroy("%s: cannot convert %s to PGresult*",
STRFUN(builtin), STROBJ(result));
res = (PGresult*)(result->data.opaque.data);
CHECK_STRING(field_name);
number = PQfnumber(res, THESTR(field_name));
return (INTEGER(number));
}
/* helper function for setf
* DONT explicitly call. Non standard function
*/
LispObj *
Lisp_XeditCharStore(LispBuiltin *builtin)
/*
xedit::char-store string index value
*/
{
int character;
long offset, length;
LispObj *ostring, *oindex, *ovalue;
ovalue = ARGUMENT(2);
oindex = ARGUMENT(1);
ostring = ARGUMENT(0);
CHECK_STRING(ostring);
CHECK_INDEX(oindex);
length = STRLEN(ostring);
offset = FIXNUM_VALUE(oindex);
if (offset >= length)
LispDestroy("%s: index %ld too large for string length %ld",
STRFUN(builtin), offset, length);
CHECK_SCHAR(ovalue);
CHECK_STRING_WRITABLE(ostring);
character = SCHAR_VALUE(ovalue);
if (character < 0 || character > 255)
LispDestroy("%s: cannot represent character %d",
STRFUN(builtin), character);
THESTR(ostring)[offset] = character;
return (ovalue);
}
LispObj *
Lisp_Char(LispBuiltin *builtin)
/*
char string index
schar simple-string index
*/
{
unsigned char *string;
long offset, length;
LispObj *ostring, *oindex;
oindex = ARGUMENT(1);
ostring = ARGUMENT(0);
CHECK_STRING(ostring);
CHECK_INDEX(oindex);
offset = FIXNUM_VALUE(oindex);
string = (unsigned char*)THESTR(ostring);
length = STRLEN(ostring);
if (offset >= length)
LispDestroy("%s: index %ld too large for string length %ld",
STRFUN(builtin), offset, length);
return (SCHAR(string[offset]));
}
LispObj *
Lisp_XawTextSearch(LispBuiltin *builtin)
/*
xaw-text-search widget direction text
*/
{
Widget widget;
XawTextScanDirection direction;
XawTextBlock block;
LispObj *owidget, *odirection, *otext;
otext = ARGUMENT(2);
odirection = ARGUMENT(1);
owidget = ARGUMENT(0);
if (!CHECKO(owidget, xawWidget_t))
LispDestroy("%s: cannot convert %s to Widget",
STRFUN(builtin), STROBJ(owidget));
widget = (Widget)(owidget->data.opaque.data);
CHECK_INDEX(odirection);
direction = (XawTextPosition)FIXNUM_VALUE(odirection);
if (direction != XawsdLeft && direction != XawsdRight)
LispDestroy("%s: %d does not fit in XawTextScanDirection",
STRFUN(builtin), direction);
CHECK_STRING(otext);
block.firstPos = 0;
block.ptr = THESTR(otext);
block.length = strlen(block.ptr);
block.format = FMT8BIT;
return (FIXNUM(XawTextSearch(widget, direction, &block)));
}
LispObj *
Lisp_MakeStringInputStream(LispBuiltin *builtin)
/*
make-string-input-stream string &optional start end
*/
{
char *string;
long start, end, length;
LispObj *ostring, *ostart, *oend, *result;
oend = ARGUMENT(2);
ostart = ARGUMENT(1);
ostring = ARGUMENT(0);
start = end = 0;
CHECK_STRING(ostring);
LispCheckSequenceStartEnd(builtin, ostring, ostart, oend,
&start, &end, &length);
string = THESTR(ostring);
if (end - start != length)
length = end - start;
result = LSTRINGSTREAM(string + start, STREAM_READ, length);
return (result);
}
LispObj *
LispFindPackageFromString(const char *string)
{
LispObj *list, *package, *nick;
for (list = PACK; CONSP(list); list = CDR(list)) {
package = CAR(list);
if (strcmp(THESTR(package->data.package.name), string) == 0)
return (package);
for (nick = package->data.package.nicknames;
CONSP(nick); nick = CDR(nick))
if (strcmp(THESTR(CAR(nick)), string) == 0)
return (package);
}
return (NIL);
}
LispObj *
LispStringUpcase(LispBuiltin *builtin, int inplace)
/*
string-upcase string &key start end
nstring-upcase string &key start end
*/
{
LispObj *result;
char *string, *newstring;
long start, end, length, offset;
LispObj *ostring, *ostart, *oend;
oend = ARGUMENT(2);
ostart = ARGUMENT(1);
ostring = ARGUMENT(0);
CHECK_STRING(ostring);
LispCheckSequenceStartEnd(builtin, ostring, ostart, oend,
&start, &end, &offset);
result = ostring;
string = THESTR(ostring);
length = STRLEN(ostring);
/* first check if something need to be done */
for (offset = start; offset < end; offset++)
if (string[offset] != toupper(string[offset]))
break;
if (offset >= end)
return (result);
if (inplace) {
CHECK_STRING_WRITABLE(ostring);
newstring = string;
}
else {
/* upcase a copy of argument */
newstring = LispMalloc(length + 1);
if (offset)
memcpy(newstring, string, offset);
if (length > end)
memcpy(newstring + end, string + end, length - end);
newstring[length] = '\0';
}
for (; offset < end; offset++)
newstring[offset] = toupper(string[offset]);
if (!inplace)
result = LSTRING2(newstring, length);
return (result);
}
/* XXX preserve-whitespace is being ignored */
LispObj *
Lisp_ReadFromString(LispBuiltin *builtin)
/*
read-from-string string &optional eof-error-p eof-value &key start end preserve-whitespace
*/
{
GC_ENTER();
char *string;
LispObj *stream, *result;
long length, start, end, bytes_read;
LispObj *ostring, *eof_error_p, *eof_value, *ostart, *oend;
oend = ARGUMENT(4);
ostart = ARGUMENT(3);
eof_value = ARGUMENT(2);
eof_error_p = ARGUMENT(1);
ostring = ARGUMENT(0);
CHECK_STRING(ostring);
string = THESTR(ostring);
LispCheckSequenceStartEnd(builtin, ostring, ostart, oend,
&start, &end, &length);
if (start > 0 || end < length)
length = end - start;
stream = LSTRINGSTREAM(string + start, STREAM_READ, length);
if (eof_value == UNSPEC)
eof_value = NIL;
LispPushInput(stream);
result = LispRead();
/* stream->data.stream.source.string->input is
* the offset of the last byte read in string */
bytes_read = stream->data.stream.source.string->input;
LispPopInput(stream);
if (result == NULL) {
if (eof_error_p == NIL)
result = eof_value;
else
LispDestroy("%s: unexpected end of input", STRFUN(builtin));
}
GC_PROTECT(result);
RETURN(0) = FIXNUM(start + bytes_read);
RETURN_COUNT = 1;
GC_LEAVE();
return (result);
}
LispObj *
LispFindPackage(LispObj *name)
{
char *string = NULL;
if (PACKAGEP(name))
return (name);
if (SYMBOLP(name))
string = ATOMID(name)->value;
else if (STRINGP(name))
string = THESTR(name);
else
LispDestroy("FIND-PACKAGE: %s is not a string or symbol", STROBJ(name));
return (LispFindPackageFromString(string));
}
LispObj *
Lisp_Recomp(LispBuiltin *builtin)
/*
re-comp pattern &key nospec icase nosub newline
*/
{
re_cod *regex;
int cflags = 0;
LispObj *result;
LispObj *pattern, *nospec, *icase, *nosub, *newline;
newline = ARGUMENT(4);
nosub = ARGUMENT(3);
icase = ARGUMENT(2);
nospec = ARGUMENT(1);
pattern = ARGUMENT(0);
/* Don't generate an error if it is already a compiled regex. */
if (REGEXP(pattern))
return (pattern);
CHECK_STRING(pattern);
if (nospec != UNSPEC && nospec != NIL)
cflags |= RE_NOSPEC;
if (icase != UNSPEC && icase != NIL)
cflags |= RE_ICASE;
if (nosub != UNSPEC && nosub != NIL)
cflags |= RE_NOSUB;
if (newline != UNSPEC && newline != NIL)
cflags |= RE_NEWLINE;
regex = LispRecomp(builtin, THESTR(pattern), cflags);
result = LispNew(pattern, NIL);
result->type = LispRegex_t;
result->data.regex.regex = regex;
result->data.regex.pattern = pattern;
result->data.regex.options = cflags;
LispMused(regex);
return (result);
}
LispObj *
Lisp_XOpenDisplay(LispBuiltin *builtin)
/*
x-open-display &optional display-name
*/
{
LispObj *display_name;
char *dname;
display_name = ARGUMENT(0);
if (display_name == UNSPEC)
dname = NULL;
else {
CHECK_STRING(display_name);
dname = THESTR(display_name);
}
return (OPAQUE(XOpenDisplay(dname), x11Display_t));
}
LispObj *
Lisp_StringConcat(LispBuiltin *builtin)
/*
string-concat &rest strings
*/
{
char *buffer;
long size, length;
LispObj *object, *string;
LispObj *strings;
strings = ARGUMENT(0);
if (strings == NIL)
return (STRING(""));
for (length = 1, object = strings; CONSP(object); object = CDR(object)) {
string = CAR(object);
CHECK_STRING(string);
length += STRLEN(string);
}
buffer = LispMalloc(length);
for (length = 0, object = strings; CONSP(object); object = CDR(object)) {
string = CAR(object);
size = STRLEN(string);
memcpy(buffer + length, THESTR(string), size);
length += size;
}
buffer[length] = '\0';
object = LSTRING2(buffer, length);
return (object);
}
LispObj *
Lisp_XawTextReplace(LispBuiltin *builtin)
/*
xaw-text-replace widget left right text
*/
{
Widget widget;
XawTextPosition left, right;
XawTextBlock block;
LispObj *owidget, *oleft, *oright, *otext;
otext = ARGUMENT(3);
oright = ARGUMENT(2);
oleft = ARGUMENT(1);
owidget = ARGUMENT(0);
if (!CHECKO(owidget, xawWidget_t))
LispDestroy("%s: cannot convert %s to Widget",
STRFUN(builtin), STROBJ(owidget));
widget = (Widget)(owidget->data.opaque.data);
CHECK_INDEX(oleft);
left = (XawTextPosition)FIXNUM_VALUE(oleft);
CHECK_INDEX(oright);
right = (XawTextPosition)FIXNUM_VALUE(oright);
CHECK_STRING(otext);
block.firstPos = 0;
block.ptr = THESTR(otext);
block.length = strlen(block.ptr);
block.format = FMT8BIT;
return (FIXNUM(XawTextReplace(widget, left, right, &block)));
}
LispObj *
Lisp_PQexec(LispBuiltin *builtin)
/*
pq-exec connection query
*/
{
PGconn *conn;
PGresult *res;
LispObj *connection, *query;
query = ARGUMENT(1);
connection = ARGUMENT(0);
if (!CHECKO(connection, PGconn_t))
LispDestroy("%s: cannot convert %s to PGconn*",
STRFUN(builtin), STROBJ(connection));
conn = (PGconn*)(connection->data.opaque.data);
CHECK_STRING(query);
res = PQexec(conn, THESTR(query));
return (res ? OPAQUE(res, PGresult_t) : NIL);
}
LispObj *
Lisp_XawListChange(LispBuiltin *builtin)
/*
xaw-list-change widget list &optional longest resize
*/
{
Widget widget;
String *list;
int i, nitems;
int longest;
Boolean resize;
LispObj *object;
WidgetData *data;
LispObj *owidget, *olist, *olongest, *oresize;
oresize = ARGUMENT(3);
olongest = ARGUMENT(2);
olist = ARGUMENT(1);
owidget = ARGUMENT(0);
if (!CHECKO(owidget, xawWidget_t))
LispDestroy("%s: cannot convert %s to Widget",
STRFUN(builtin), STROBJ(owidget));
widget = (Widget)(owidget->data.opaque.data);
CHECK_LIST(olist);
for (nitems = 0, object = olist; CONSP(object);
++nitems, object = CDR(object))
CHECK_STRING(CAR(object));
if (olongest != UNSPEC) {
CHECK_INDEX(olongest);
longest = FIXNUM_VALUE(olongest);
}
else
XtVaGetValues(widget, XtNlongest, &longest, NULL, 0);
resize = oresize != UNSPEC && oresize != NIL;
/* No errors in arguments, build string list */
list = (String*)XtMalloc(sizeof(String) * nitems);
for (i = 0, object = olist; CONSP(object); i++, object = CDR(object))
list[i] = THESTR(CAR(object));
/* Check if xaw-list-change was already called
* for this widget and free previous data */
for (i = 0; i < num_list_data; i++)
if ((Widget)CAR(list_data[i]->object)->data.opaque.data == widget) {
XtRemoveCallback(widget, XtNdestroyCallback,
LispXawCleanupCallback, list_data[i]);
LispXawCleanupCallback(widget, list_data[i], NULL);
break;
}
if (i >= num_list_data) {
++num_list_data;
list_data = (WidgetData**)XtRealloc((XtPointer)list_data,
sizeof(WidgetData*) * num_list_data);
}
data = (WidgetData*)XtMalloc(sizeof(WidgetData));
data->data = list;
list_data[i] = data;
data->object = CONS(owidget, olist);
PROTECT(owidget, data->object);
XtAddCallback(widget, XtNdestroyCallback, LispXawCleanupCallback, data);
XawListChange(widget, list, nitems, longest, resize);
return (olist);
}
LispObj *
LispPQsetdb(LispBuiltin *builtin, int loginp)
/*
pq-setdb host port options tty dbname
pq-setdb-login host port options tty dbname login password
*/
{
PGconn *conn;
char *host, *port, *options, *tty, *dbname, *login, *password;
LispObj *ohost, *oport, *ooptions, *otty, *odbname, *ologin, *opassword;
if (loginp) {
opassword = ARGUMENT(6);
ologin = ARGUMENT(5);
}
else
opassword = ologin = NIL;
odbname = ARGUMENT(4);
otty = ARGUMENT(3);
ooptions = ARGUMENT(2);
oport = ARGUMENT(1);
ohost = ARGUMENT(0);
if (ohost != NIL) {
CHECK_STRING(ohost);
host = THESTR(ohost);
}
else
host = NULL;
if (oport != NIL) {
CHECK_STRING(oport);
port = THESTR(oport);
}
else
port = NULL;
if (ooptions != NIL) {
CHECK_STRING(ooptions);
options = THESTR(ooptions);
}
else
options = NULL;
if (otty != NIL) {
CHECK_STRING(otty);
tty = THESTR(otty);
}
else
tty = NULL;
if (odbname != NIL) {
CHECK_STRING(odbname);
dbname = THESTR(odbname);
}
else
dbname = NULL;
if (ologin != NIL) {
CHECK_STRING(ologin);
login = THESTR(ologin);
}
else
login = NULL;
if (opassword != NIL) {
CHECK_STRING(opassword);
password = THESTR(opassword);
}
else
password = NULL;
conn = PQsetdbLogin(host, port, options, tty, dbname, login, password);
return (conn ? OPAQUE(conn, PGconn_t) : NIL);
}
LispObj *
Lisp_ParseInteger(LispBuiltin *builtin)
/*
parse-integer string &key start end radix junk-allowed
*/
{
GC_ENTER();
char *ptr, *string;
int character, junk, sign, overflow;
long i, start, end, radix, length, integer, check;
LispObj *result;
LispObj *ostring, *ostart, *oend, *oradix, *junk_allowed;
junk_allowed = ARGUMENT(4);
oradix = ARGUMENT(3);
oend = ARGUMENT(2);
ostart = ARGUMENT(1);
ostring = ARGUMENT(0);
start = end = radix = 0;
result = NIL;
CHECK_STRING(ostring);
LispCheckSequenceStartEnd(builtin, ostring, ostart, oend,
&start, &end, &length);
string = THESTR(ostring);
if (oradix == UNSPEC)
radix = 10;
else {
CHECK_INDEX(oradix);
radix = FIXNUM_VALUE(oradix);
}
if (radix < 2 || radix > 36)
LispDestroy("%s: :RADIX %ld must be in the range 2 to 36",
STRFUN(builtin), radix);
integer = check = 0;
ptr = string + start;
sign = overflow = 0;
/* Skip leading white spaces */
for (i = start; i < end && *ptr && isspace(*ptr); ptr++, i++)
;
/* Check for sign specification */
if (i < end && (*ptr == '-' || *ptr == '+')) {
sign = *ptr == '-';
++ptr;
++i;
}
for (junk = 0; i < end; i++, ptr++) {
character = *ptr;
if (islower(character))
character = toupper(character);
if (character >= '0' && character <= '9') {
if (character - '0' >= radix)
junk = 1;
else {
check = integer;
integer = integer * radix + character - '0';
}
}
else if (character >= 'A' && character <= 'Z') {
if (character - 'A' + 10 >= radix)
junk = 1;
else {
check = integer;
integer = integer * radix + character - 'A' + 10;
}
}
else {
if (isspace(character))
break;
junk = 1;
}
if (junk)
break;
if (!overflow && check > integer)
overflow = 1;
/* keep looping just to count read bytes */
}
if (!junk)
/* Skip white spaces */
for (; i < end && *ptr && isspace(*ptr); ptr++, i++)
;
if ((junk || ptr == string) &&
(junk_allowed == UNSPEC || junk_allowed == NIL))
LispDestroy("%s: %s has a bad integer representation",
STRFUN(builtin), STROBJ(ostring));
else if (ptr == string)
result = NIL;
else if (overflow) {
mpi *bigi = LispMalloc(sizeof(mpi));
char *str;
length = end - start + sign;
str = LispMalloc(length + 1);
strncpy(str, string - sign, length + sign);
str[length + sign] = '\0';
mpi_init(bigi);
mpi_setstr(bigi, str, radix);
LispFree(str);
result = BIGNUM(bigi);
}
else
result = INTEGER(sign ? -integer : integer);
GC_PROTECT(result);
RETURN(0) = FIXNUM(i);
RETURN_COUNT = 1;
GC_LEAVE();
return (result);
}
LispObj *
Lisp_Require(LispBuiltin *builtin)
/*
require module &optional pathname
*/
{
char filename[1024], *ext;
int len;
LispObj *obj, *module, *pathname;
pathname = ARGUMENT(1);
module = ARGUMENT(0);
CHECK_STRING(module);
if (pathname != UNSPEC) {
if (PATHNAMEP(pathname))
pathname = CAR(pathname->data.pathname);
else {
CHECK_STRING(pathname);
}
}
else
pathname = module;
for (obj = MOD; CONSP(obj); obj = CDR(obj)) {
if (strcmp(THESTR(CAR(obj)), THESTR(module)) == 0)
return (module);
}
if (THESTR(pathname)[0] != '/') {
#ifdef LISPDIR
snprintf(filename, sizeof(filename), "%s", LISPDIR);
#else
getcwd(filename, sizeof(filename));
#endif
}
else
filename[0] = '\0';
*(filename + sizeof(filename) - 5) = '\0'; /* make sure there is place for ext */
len = strlen(filename);
if (!len || filename[len - 1] != '/') {
strcat(filename, "/");
++len;
}
snprintf(filename + len, sizeof(filename) - len - 5, "%s", THESTR(pathname));
ext = filename + strlen(filename);
#ifdef SHARED_MODULES
strcpy(ext, ".so");
if (access(filename, R_OK) == 0) {
LispModule *lisp_module;
char data[64];
int len;
if (lisp__data.module == NULL) {
/* export our own symbols */
if (dlopen(NULL, RTLD_LAZY | RTLD_GLOBAL) == NULL)
LispDestroy("%s: ", STRFUN(builtin), dlerror());
}
lisp_module = (LispModule*)LispMalloc(sizeof(LispModule));
if ((lisp_module->handle =
dlopen(filename, RTLD_LAZY | RTLD_GLOBAL)) == NULL)
LispDestroy("%s: dlopen: %s", STRFUN(builtin), dlerror());
snprintf(data, sizeof(data), "%sLispModuleData", THESTR(module));
if ((lisp_module->data =
(LispModuleData*)dlsym(lisp_module->handle, data)) == NULL) {
dlclose(lisp_module->handle);
LispDestroy("%s: cannot find LispModuleData for %s",
STRFUN(builtin), STROBJ(module));
}
LispMused(lisp_module);
lisp_module->next = lisp__data.module;
lisp__data.module = lisp_module;
if (lisp_module->data->load)
(lisp_module->data->load)();
if (MOD == NIL)
MOD = CONS(module, NIL);
else {
RPLACD(MOD, CONS(CAR(MOD), CDR(MOD)));
RPLACA(MOD, module);
}
LispSetVar(lisp__data.modules, MOD);
return (module);
}
#endif
strcpy(ext, ".lsp");
(void)LispLoadFile(STRING(filename), 0, 0, 0);
return (module);
}
static LispObj *
LispStringTrim(LispBuiltin *builtin, int left, int right, int inplace)
/*
string-{,left-,right-}trim character-bag string
*/
{
unsigned char *string;
long start, end, length;
LispObj *ochars, *ostring;
ostring = ARGUMENT(1);
ochars = ARGUMENT(0);
if (!POINTERP(ochars) || !(XSTRINGP(ochars) || XCONSP(ochars))) {
if (ARRAYP(ochars) && ochars->data.array.rank == 1)
ochars = ochars->data.array.list;
else
LispDestroy("%s: %s is not a sequence",
STRFUN(builtin), STROBJ(ochars));
}
CHECK_STRING(ostring);
string = (unsigned char*)THESTR(ostring);
length = STRLEN(ostring);
start = 0;
end = length;
if (XSTRINGP(ochars)) {
unsigned char *chars = (unsigned char*)THESTR(ochars);
long i, clength = STRLEN(ochars);
if (left) {
for (; start < end; start++) {
for (i = 0; i < clength; i++)
if (string[start] == chars[i])
break;
if (i >= clength)
break;
}
}
if (right) {
for (--end; end >= 0; end--) {
for (i = 0; i < clength; i++)
if (string[end] == chars[i])
break;
if (i >= clength)
break;
}
++end;
}
}
else {
LispObj *ochar, *list;
if (left) {
for (; start < end; start++) {
for (list = ochars; CONSP(list); list = CDR(list)) {
ochar = CAR(list);
if (SCHARP(ochar) && string[start] == SCHAR_VALUE(ochar))
break;
}
if (!CONSP(list))
break;
}
}
if (right) {
for (--end; end >= 0; end--) {
for (list = ochars; CONSP(list); list = CDR(list)) {
ochar = CAR(list);
if (SCHARP(ochar) && string[end] == SCHAR_VALUE(ochar))
break;
}
if (!CONSP(list))
break;
}
++end;
}
}
if (start == 0 && end == length)
return (ostring);
length = end - start;
if (inplace) {
CHECK_STRING_WRITABLE(ostring);
memmove(string, string + start, length);
string[length] = '\0';
STRLEN(ostring) = length;
}
else {
string = LispMalloc(length + 1);
memcpy(string, THESTR(ostring) + start, length);
string[length] = '\0';
ostring = LSTRING2((char*)string, length);
}
return (ostring);
}
/* XXX Non standard functions below
*/
LispObj *
Lisp_MakePipe(LispBuiltin *builtin)
/*
make-pipe command-line &key :direction :element-type :external-format
*/
{
char *string;
LispObj *stream = NIL;
int flags, direction;
LispFile *error_file;
LispPipe *program;
int ifd[2];
int ofd[2];
int efd[2];
char *argv[4];
LispObj *command_line, *odirection, *element_type, *external_format;
external_format = ARGUMENT(3);
element_type = ARGUMENT(2);
odirection = ARGUMENT(1);
command_line = ARGUMENT(0);
if (PATHNAMEP(command_line))
command_line = CAR(command_line->data.quote);
else if (!STRINGP(command_line))
LispDestroy("%s: %s is a bad pathname",
STRFUN(builtin), STROBJ(command_line));
if (odirection != UNSPEC) {
direction = -1;
if (KEYWORDP(odirection)) {
if (odirection == Kprobe)
direction = DIR_PROBE;
else if (odirection == Kinput)
direction = DIR_INPUT;
else if (odirection == Koutput)
direction = DIR_OUTPUT;
else if (odirection == Kio)
direction = DIR_IO;
}
if (direction == -1)
LispDestroy("%s: bad :DIRECTION %s",
STRFUN(builtin), STROBJ(odirection));
}
else
direction = DIR_INPUT;
if (element_type != UNSPEC) {
/* just check argument... */
if (SYMBOLP(element_type) && ATOMID(element_type) == Scharacter)
; /* do nothing */
else if (KEYWORDP(element_type) && ATOMID(element_type) == Sdefault)
; /* do nothing */
else
LispDestroy("%s: only :%s and %s supported for :ELEMENT-TYPE, not %s",
STRFUN(builtin), Sdefault, Scharacter, STROBJ(element_type));
}
if (external_format != UNSPEC) {
/* just check argument... */
if (SYMBOLP(external_format) && ATOMID(external_format) == Scharacter)
; /* do nothing */
else if (KEYWORDP(external_format) &&
ATOMID(external_format) == Sdefault)
; /* do nothing */
else
LispDestroy("%s: only :%s and %s supported for :EXTERNAL-FORMAT, not %s",
STRFUN(builtin), Sdefault, Scharacter, STROBJ(external_format));
}
string = THESTR(command_line);
program = LispMalloc(sizeof(LispPipe));
if (direction != DIR_PROBE) {
argv[0] = "sh";
argv[1] = "-c";
argv[2] = string;
argv[3] = NULL;
pipe(ifd);
pipe(ofd);
pipe(efd);
if ((program->pid = fork()) == 0) {
close(0);
close(1);
close(2);
dup2(ofd[0], 0);
dup2(ifd[1], 1);
dup2(efd[1], 2);
close(ifd[0]);
close(ifd[1]);
close(ofd[0]);
close(ofd[1]);
close(efd[0]);
close(efd[1]);
execve("/bin/sh", argv, environ);
exit(-1);
}
else if (program->pid < 0)
LispDestroy("%s: fork: %s", STRFUN(builtin), strerror(errno));
program->input = LispFdopen(ifd[0], FILE_READ | FILE_UNBUFFERED);
close(ifd[1]);
program->output = LispFdopen(ofd[1], FILE_WRITE | FILE_UNBUFFERED);
close(ofd[0]);
error_file = LispFdopen(efd[0], FILE_READ | FILE_UNBUFFERED);
close(efd[1]);
}
else {
program->pid = -1;
program->input = program->output = error_file = NULL;
}
flags = direction == DIR_PROBE ? 0 : STREAM_READ;
program->errorp = FILESTREAM(error_file, command_line, flags);
flags = 0;
if (direction != DIR_PROBE) {
if (direction == DIR_INPUT || direction == DIR_IO)
flags |= STREAM_READ;
if (direction == DIR_OUTPUT || direction == DIR_IO)
flags |= STREAM_WRITE;
}
stream = PIPESTREAM(program, command_line, flags);
LispMused(program);
return (stream);
}
LispObj *
LispStringCapitalize(LispBuiltin *builtin, int inplace)
/*
string-capitalize string &key start end
nstring-capitalize string &key start end
*/
{
LispObj *result;
char *string, *newstring;
long start, end, length, offset, upcase;
LispObj *ostring, *ostart, *oend;
oend = ARGUMENT(2);
ostart = ARGUMENT(1);
ostring = ARGUMENT(0);
CHECK_STRING(ostring);
LispCheckSequenceStartEnd(builtin, ostring, ostart, oend,
&start, &end, &offset);
result = ostring;
string = THESTR(ostring);
length = STRLEN(ostring);
/* first check if something need to be done */
for (upcase = 1, offset = start; offset < end; offset++) {
if (upcase) {
if (!isalnum(string[offset]))
continue;
if (string[offset] != toupper(string[offset]))
break;
upcase = 0;
}
else {
if (isalnum(string[offset])) {
if (string[offset] != tolower(string[offset]))
break;
}
else
upcase = 1;
}
}
if (offset >= end)
return (result);
if (inplace) {
CHECK_STRING_WRITABLE(ostring);
newstring = string;
}
else {
/* capitalize a copy of argument */
newstring = LispMalloc(length + 1);
memcpy(newstring, string, length);
newstring[length] = '\0';
}
for (; offset < end; offset++) {
if (upcase) {
if (!isalnum(string[offset]))
continue;
newstring[offset] = toupper(string[offset]);
upcase = 0;
}
else {
if (isalnum(newstring[offset]))
newstring[offset] = tolower(string[offset]);
else
upcase = 1;
}
}
if (!inplace)
result = LSTRING2(newstring, length);
return (result);
}
LispObj *
Lisp_Open(LispBuiltin *builtin)
/*
open filename &key direction element-type if-exists if-does-not-exist external-format
*/
{
GC_ENTER();
char *string;
LispObj *stream = NIL;
int mode, flags, direction, exist, noexist, file_exist;
LispFile *file;
LispObj *filename, *odirection, *element_type, *if_exists,
*if_does_not_exist, *external_format;
external_format = ARGUMENT(5);
if_does_not_exist = ARGUMENT(4);
if_exists = ARGUMENT(3);
element_type = ARGUMENT(2);
odirection = ARGUMENT(1);
filename = ARGUMENT(0);
if (STRINGP(filename)) {
filename = APPLY1(Oparse_namestring, filename);
GC_PROTECT(filename);
}
else if (STREAMP(filename)) {
if (filename->data.stream.type != LispStreamFile)
LispDestroy("%s: %s is not a FILE-STREAM",
STRFUN(builtin), STROBJ(filename));
filename = filename->data.stream.pathname;
}
else {
CHECK_PATHNAME(filename);
}
if (odirection != UNSPEC) {
direction = -1;
if (KEYWORDP(odirection)) {
if (odirection == Kprobe)
direction = DIR_PROBE;
else if (odirection == Kinput)
direction = DIR_INPUT;
else if (odirection == Koutput)
direction = DIR_OUTPUT;
else if (odirection == Kio)
direction = DIR_IO;
}
if (direction == -1)
LispDestroy("%s: bad :DIRECTION %s",
STRFUN(builtin), STROBJ(odirection));
}
else
direction = DIR_INPUT;
if (element_type != UNSPEC) {
/* just check argument... */
if (SYMBOLP(element_type) &&
ATOMID(element_type) == Scharacter)
; /* do nothing */
else if (KEYWORDP(element_type) &&
ATOMID(element_type) == Sdefault)
; /* do nothing */
else
LispDestroy("%s: only :%s and %s supported for :ELEMENT-TYPE, not %s",
STRFUN(builtin), Sdefault, Scharacter, STROBJ(element_type));
}
if (if_exists != UNSPEC) {
exist = -1;
if (if_exists == NIL)
exist = EXT_NIL;
else if (KEYWORDP(if_exists)) {
if (if_exists == Kerror)
exist = EXT_ERROR;
else if (if_exists == Knew_version)
exist = EXT_NEW_VERSION;
else if (if_exists == Krename)
exist = EXT_RENAME;
else if (if_exists == Krename_and_delete)
exist = EXT_RENAME_DELETE;
else if (if_exists == Koverwrite)
exist = EXT_OVERWRITE;
else if (if_exists == Kappend)
exist = EXT_APPEND;
else if (if_exists == Ksupersede)
exist = EXT_SUPERSEDE;
}
if (exist == -1)
LispDestroy("%s: bad :IF-EXISTS %s",
STRFUN(builtin), STROBJ(if_exists));
}
else
exist = EXT_ERROR;
if (if_does_not_exist != UNSPEC) {
noexist = -1;
if (if_does_not_exist == NIL)
noexist = NOEXT_NIL;
if (KEYWORDP(if_does_not_exist)) {
if (if_does_not_exist == Kerror)
noexist = NOEXT_ERROR;
else if (if_does_not_exist == Kcreate)
noexist = NOEXT_CREATE;
}
if (noexist == -1)
LispDestroy("%s: bad :IF-DOES-NO-EXISTS %s",
STRFUN(builtin), STROBJ(if_does_not_exist));
}
else
noexist = direction != DIR_INPUT ? NOEXT_NOTHING : NOEXT_ERROR;
if (external_format != UNSPEC) {
/* just check argument... */
if (SYMBOLP(external_format) &&
ATOMID(external_format) == Scharacter)
; /* do nothing */
else if (KEYWORDP(external_format) &&
ATOMID(external_format) == Sdefault)
; /* do nothing */
else
LispDestroy("%s: only :%s and %s supported for :EXTERNAL-FORMAT, not %s",
STRFUN(builtin), Sdefault, Scharacter, STROBJ(external_format));
}
/* string representation of pathname */
string = THESTR(CAR(filename->data.pathname));
mode = 0;
file_exist = access(string, F_OK) == 0;
if (file_exist) {
if (exist == EXT_NIL) {
GC_LEAVE();
return (NIL);
}
}
else {
if (noexist == NOEXT_NIL) {
GC_LEAVE();
return (NIL);
}
if (noexist == NOEXT_ERROR)
LispDestroy("%s: file %s does not exist",
STRFUN(builtin), STROBJ(CAR(filename->data.quote)));
else if (noexist == NOEXT_CREATE) {
LispFile *tmp = LispFopen(string, FILE_WRITE);
if (tmp)
LispFclose(tmp);
else
LispDestroy("%s: cannot create file %s",
STRFUN(builtin),
STROBJ(CAR(filename->data.quote)));
}
}
if (direction == DIR_OUTPUT || direction == DIR_IO) {
if (file_exist) {
if (exist == EXT_ERROR)
LispDestroy("%s: file %s already exists",
STRFUN(builtin), STROBJ(CAR(filename->data.quote)));
if (exist == EXT_RENAME) {
/* Add an ending '~' at the end of the backup file */
char tmp[PATH_MAX + 1];
strcpy(tmp, string);
if (strlen(tmp) + 1 > PATH_MAX)
LispDestroy("%s: backup name for %s too long",
STRFUN(builtin),
STROBJ(CAR(filename->data.quote)));
strcat(tmp, "~");
if (rename(string, tmp))
LispDestroy("%s: rename: %s",
STRFUN(builtin), strerror(errno));
mode |= FILE_WRITE;
}
else if (exist == EXT_OVERWRITE)
mode |= FILE_WRITE;
else if (exist == EXT_APPEND)
mode |= FILE_APPEND;
}
else
mode |= FILE_WRITE;
if (direction == DIR_IO)
mode |= FILE_IO;
}
else
mode |= FILE_READ;
file = LispFopen(string, mode);
if (file == NULL)
LispDestroy("%s: open: %s", STRFUN(builtin), strerror(errno));
flags = 0;
if (direction == DIR_PROBE) {
LispFclose(file);
file = NULL;
}
else {
if (direction == DIR_INPUT || direction == DIR_IO)
flags |= STREAM_READ;
if (direction == DIR_OUTPUT || direction == DIR_IO)
flags |= STREAM_WRITE;
}
stream = FILESTREAM(file, filename, flags);
GC_LEAVE();
return (stream);
}
LispObj *
Lisp_Reexec(LispBuiltin *builtin)
/*
re-exec regex string &key count start end notbol noteol
*/
{
size_t nmatch;
re_mat match[10];
long start, end, length;
int code, cflags, eflags;
char *string;
LispObj *result;
re_cod *regexp;
LispObj *regex, *ostring, *count, *ostart, *oend, *notbol, *noteol;
noteol = ARGUMENT(6);
notbol = ARGUMENT(5);
oend = ARGUMENT(4);
ostart = ARGUMENT(3);
count = ARGUMENT(2);
ostring = ARGUMENT(1);
regex = ARGUMENT(0);
if (STRINGP(regex))
regexp = LispRecomp(builtin, THESTR(regex), cflags = 0);
else {
CHECK_REGEX(regex);
regexp = regex->data.regex.regex;
cflags = regex->data.regex.options;
}
CHECK_STRING(ostring);
if (count == UNSPEC)
nmatch = 1;
else {
CHECK_INDEX(count);
nmatch = FIXNUM_VALUE(count);
if (nmatch > 10)
LispDestroy("%s: COUNT cannot be larger than 10", STRFUN(builtin));
}
if (nmatch && (cflags & RE_NOSUB))
nmatch = 1;
eflags = RE_STARTEND;
if (notbol != UNSPEC && notbol != NIL)
eflags |= RE_NOTBOL;
if (noteol != UNSPEC && noteol != NIL)
eflags |= RE_NOTEOL;
string = THESTR(ostring);
LispCheckSequenceStartEnd(builtin, ostring, ostart, oend,
&start, &end, &length);
match[0].rm_so = start;
match[0].rm_eo = end;
code = reexec(regexp, string, nmatch, &match[0], eflags);
if (code == 0) {
if (nmatch && match[0].rm_eo >= match[0].rm_so) {
result = CONS(CONS(FIXNUM(match[0].rm_so),
FIXNUM(match[0].rm_eo)), NIL);
if (nmatch > 1 && match[1].rm_eo >= match[1].rm_so) {
int i;
GC_ENTER();
LispObj *cons = result;
GC_PROTECT(result);
for (i = 1;
i < nmatch && match[i].rm_eo >= match[i].rm_so;
i++) {
RPLACD(cons, CONS(CONS(FIXNUM(match[i].rm_so),
FIXNUM(match[i].rm_eo)), NIL));
cons = CDR(cons);
}
GC_LEAVE();
}
}
else
result = NIL;
}
else
result = Knomatch;
/* Maybe shoud cache compiled regex, but better the caller do it */
if (!XREGEXP(regex)) {
refree(regexp);
LispFree(regexp);
}
return (result);
}
