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- /* -----------------------------------------------------------------------------
- * This file is part of SWIG, which is licensed as a whole under version 3
- * (or any later version) of the GNU General Public License. Some additional
- * terms also apply to certain portions of SWIG. The full details of the SWIG
- * license and copyrights can be found in the LICENSE and COPYRIGHT files
- * included with the SWIG source code as distributed by the SWIG developers
- * and at https://www.swig.org/legal.html.
- *
- * base.c
- *
- * This file contains the function entry points for dispatching methods on
- * DOH objects. A number of small utility functions are also included.
- * ----------------------------------------------------------------------------- */
- #include "dohint.h"
- /* -----------------------------------------------------------------------------
- * DohDelete()
- * ----------------------------------------------------------------------------- */
- void DohDelete(DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (!obj)
- return;
- if (!DohCheck(b)) {
- fputs("Fatal internal error: Attempt to delete a non-DOH object.\n", stderr);
- Exit(EXIT_FAILURE);
- }
- if (b->flag_intern)
- return;
- assert(b->refcount > 0);
- b->refcount--;
- if (b->refcount <= 0) {
- objinfo = b->type;
- if (objinfo->doh_del) {
- (objinfo->doh_del) (b);
- } else {
- if (b->data)
- DohFree(b->data);
- }
- DohObjFree(b);
- }
- }
- /* -----------------------------------------------------------------------------
- * DohCopy()
- * ----------------------------------------------------------------------------- */
- DOH *DohCopy(const DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (!obj)
- return 0;
- if (!DohCheck(b)) {
- fputs("Fatal internal error: Attempt to copy a non-DOH object.\n", stderr);
- Exit(EXIT_FAILURE);
- }
- objinfo = b->type;
- if (objinfo->doh_copy) {
- DohBase *bc = (DohBase *) (objinfo->doh_copy) (b);
- if ((bc) && b->meta) {
- bc->meta = Copy(b->meta);
- }
- return (DOH *) bc;
- }
- return 0;
- }
- void DohIncref(DOH *obj) {
- Incref(obj);
- }
- /* -----------------------------------------------------------------------------
- * DohClear()
- * ----------------------------------------------------------------------------- */
- void DohClear(DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_clear)
- (objinfo->doh_clear) (b);
- }
- /* -----------------------------------------------------------------------------
- * DohStr()
- * ----------------------------------------------------------------------------- */
- DOH *DohStr(const DOH *obj) {
- char buffer[512];
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (DohCheck(b)) {
- objinfo = b->type;
- if (objinfo->doh_str) {
- return (objinfo->doh_str) (b);
- }
- sprintf(buffer, "<Object '%s' at %p>", objinfo->objname, (void *) b);
- return NewString(buffer);
- } else {
- return NewString(obj);
- }
- }
- /* -----------------------------------------------------------------------------
- * DohDump()
- * ----------------------------------------------------------------------------- */
- int DohDump(const DOH *obj, DOH *out) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_dump) {
- return (objinfo->doh_dump) (b, out);
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohLen() - Defaults to strlen() if not a DOH object
- * ----------------------------------------------------------------------------- */
- int DohLen(const DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (!b)
- return 0;
- if (DohCheck(b)) {
- objinfo = b->type;
- if (objinfo->doh_len) {
- return (objinfo->doh_len) (b);
- }
- return 0;
- } else {
- return (int)strlen((char *) obj);
- }
- }
- /* -----------------------------------------------------------------------------
- * DohHashVal()
- * ----------------------------------------------------------------------------- */
- int DohHashval(const DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- /* obj is already checked and/or converted into DohBase* */
- /* if (DohCheck(b)) */
- {
- objinfo = b->type;
- if (objinfo->doh_hashval) {
- return (objinfo->doh_hashval) (b);
- }
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohData()
- * ----------------------------------------------------------------------------- */
- void *DohData(const DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (DohCheck(obj)) {
- objinfo = b->type;
- if (objinfo->doh_data) {
- return (objinfo->doh_data) (b);
- }
- return 0;
- }
- return (void *) obj;
- }
- /* -----------------------------------------------------------------------------
- * RawData()
- * ----------------------------------------------------------------------------- */
- static void *RawData(DohBase *b) {
- DohObjInfo *objinfo = b->type;
- return (objinfo->doh_data) ? (objinfo->doh_data) (b) : 0;
- }
- /* -----------------------------------------------------------------------------
- * DohCmp()
- * ----------------------------------------------------------------------------- */
- int DohCmp(const DOH *obj1, const DOH *obj2) {
- DohBase *b1, *b2;
- DohObjInfo *b1info, *b2info;
- int c1, c2;
- b1 = (DohBase *) obj1;
- b2 = (DohBase *) obj2;
- c1 = DohCheck(b1);
- c2 = DohCheck(b2);
- /* most of the times, obj2 is a plain c string */
- if (!c1 || !c2) {
- if ((b1 == 0) && (b2 == 0))
- return 0;
- if (b1 && !b2)
- return 1;
- if (!b1 && b2)
- return -1;
- return strcmp((char *) (c1 ? RawData(b1) : (void *) obj1), (char *) (c2 ? RawData(b2) : (void *) obj2));
- }
- b1info = b1->type;
- b2info = b2->type;
- if ((b1info == b2info) && (b1info->doh_cmp))
- return (b1info->doh_cmp) (b1, b2);
- return 1;
- }
- /* -----------------------------------------------------------------------------
- * DohEqual()
- * ----------------------------------------------------------------------------- */
- int DohEqual(const DOH *obj1, const DOH *obj2) {
- DohBase *b1 = (DohBase *) obj1;
- DohBase *b2 = (DohBase *) obj2;
- if (!b1) {
- return !b2;
- } else if (!b2) {
- return 0;
- } else {
- DohObjInfo *b1info = 0;
- DohObjInfo *b2info = 0;
- if (DohCheck(b1)) {
- b1info = b1->type;
- if (DohCheck(b2)) {
- b2info = b2->type;
- } else {
- int len = (b1info->doh_len) (b1);
- char *cobj = (char *) obj2;
- return len == (int) strlen(cobj) ? (memcmp(RawData(b1), cobj, len) == 0) : 0;
- }
- } else if (DohCheck(b2)) {
- int len = (b2->type->doh_len) (b2);
- char *cobj = (char *) obj1;
- return len == (int) strlen(cobj) ? (memcmp(RawData(b2), cobj, len) == 0) : 0;
- } else {
- return strcmp((char *) obj1, (char *) obj2) == 0;
- }
- if (!b1info) {
- return obj1 == obj2;
- } else if (b1info == b2info) {
- return b1info->doh_equal ? (b1info->doh_equal) (b1, b2) : (b1info->doh_cmp ? (b1info->doh_cmp) (b1, b2) == 0 : (b1 == b2));
- } else {
- return 0;
- }
- }
- }
- /* -----------------------------------------------------------------------------
- * DohFirst()
- * ----------------------------------------------------------------------------- */
- DohIterator DohFirst(DOH *obj) {
- DohIterator iter;
- DohBase *b;
- DohObjInfo *binfo;
- b = (DohBase *) obj;
- if (DohCheck(b)) {
- binfo = b->type;
- if (binfo->doh_first) {
- return (binfo->doh_first) (b);
- }
- }
- iter.object = 0;
- iter.item = 0;
- iter.key = 0;
- iter._current = 0;
- iter._index = 0;
- return iter;
- }
- /* -----------------------------------------------------------------------------
- * DohNext()
- * ----------------------------------------------------------------------------- */
- DohIterator DohNext(DohIterator iter) {
- DohIterator niter;
- if (iter.object) {
- DohBase *b;
- DohObjInfo *binfo;
- b = (DohBase *) iter.object;
- binfo = b->type;
- if (binfo->doh_next) {
- return (binfo->doh_next) (iter);
- }
- }
- niter = iter;
- return niter;
- }
- /* -----------------------------------------------------------------------------
- * DohIsMapping()
- * ----------------------------------------------------------------------------- */
- int DohIsMapping(const DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (!DohCheck(b))
- return 0;
- objinfo = b->type;
- if (objinfo->doh_hash)
- return 1;
- else
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohGetattr()
- * ----------------------------------------------------------------------------- */
- DOH *DohGetattr(DOH *obj, const DOH *name) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_hash && objinfo->doh_hash->doh_getattr) {
- DOH *r = (objinfo->doh_hash->doh_getattr) (b, (DOH *) name);
- return (r == DohNone) ? 0 : r;
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohSetattr()
- * ----------------------------------------------------------------------------- */
- int DohSetattr(DOH *obj, const DOH *name, const DOH *value) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_hash && objinfo->doh_hash->doh_setattr) {
- return (objinfo->doh_hash->doh_setattr) (b, (DOH *) name, (DOH *) value);
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohDelattr()
- * ----------------------------------------------------------------------------- */
- int DohDelattr(DOH *obj, const DOH *name) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_hash && objinfo->doh_hash->doh_delattr) {
- return (objinfo->doh_hash->doh_delattr) (b, (DOH *) name);
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohCheckattr()
- * ----------------------------------------------------------------------------- */
- int DohCheckattr(DOH *obj, const DOH *name, const DOH *value) {
- DOH *attr = Getattr(obj,name);
- if (!attr) return 0;
- return DohEqual(attr,value);
- }
- /* -----------------------------------------------------------------------------
- * DohKeys()
- * ----------------------------------------------------------------------------- */
- DOH *DohKeys(DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo && objinfo->doh_hash->doh_keys) {
- return (objinfo->doh_hash->doh_keys) (b);
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohSortedKeys()
- * ----------------------------------------------------------------------------- */
- DOH *DohSortedKeys(DOH *obj, int (*cmp) (const DOH *, const DOH *)) {
- DOHList *keys = DohKeys(obj);
- if (keys) {
- DohSortList(keys, cmp);
- }
- return keys;
- }
- /* -----------------------------------------------------------------------------
- * DohGetInt()
- * ----------------------------------------------------------------------------- */
- int DohGetInt(DOH *obj, const DOH *name) {
- DOH *val;
- val = Getattr(obj, (DOH *) name);
- if (!val)
- return 0;
- if (DohIsString(val)) {
- return atoi((char *) Data(val));
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohGetDouble()
- * ----------------------------------------------------------------------------- */
- double DohGetDouble(DOH *obj, const DOH *name) {
- DOH *val;
- val = Getattr(obj, (DOH *) name);
- if (!val)
- return 0;
- if (DohIsString(val)) {
- return atof((char *) Data(val));
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohGetChar()
- * ----------------------------------------------------------------------------- */
- char *DohGetChar(DOH *obj, const DOH *name) {
- DOH *val;
- val = Getattr(obj, (DOH *) name);
- if (!val)
- return 0;
- if (DohIsString(val)) {
- return (char *) Data(val);
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohGetFlagAttr() / DohGetFlag()
- * A flag is unset if the attribute (name) does not exist on the node (obj),
- * or it is set to "0". If the attribute is set to any other value,
- * the flag is set.
- *
- * DohGetFlag() returns if the flag is set or not
- * DohGetFlagAttr() returns the flag value if is set, NULL otherwise
- * ----------------------------------------------------------------------------- */
- DOH *DohGetFlagAttr(DOH *obj, const DOH *name) {
- DOH *val = Getattr(obj, (DOH *) name);
- if (!val) {
- return NULL;
- } else {
- const char *cval = Char(val);
- if (!cval)
- return val;
- return (strcmp(cval, "0") != 0) ? val : NULL;
- }
- }
- int DohGetFlag(DOH *obj, const DOH *name) {
- return DohGetFlagAttr(obj, name) ? 1 : 0;
- }
- /* -----------------------------------------------------------------------------
- * DohGetVoid()
- * ----------------------------------------------------------------------------- */
- void *DohGetVoid(DOH *obj, const DOH *name) {
- DOH *val;
- val = Getattr(obj, (DOH *) name);
- if (!val)
- return 0;
- return (void *) Data(val);
- }
- /* -----------------------------------------------------------------------------
- * DohSetInt()
- * ----------------------------------------------------------------------------- */
- void DohSetInt(DOH *obj, const DOH *name, int value) {
- DOH *temp;
- temp = NewStringEmpty();
- Printf(temp, "%d", value);
- Setattr(obj, (DOH *) name, temp);
- }
- /* -----------------------------------------------------------------------------
- * DohSetDouble()
- * ----------------------------------------------------------------------------- */
- void DohSetDouble(DOH *obj, const DOH *name, double value) {
- DOH *temp;
- temp = NewStringEmpty();
- Printf(temp, "%0.17f", value);
- Setattr(obj, (DOH *) name, temp);
- }
- /* -----------------------------------------------------------------------------
- * DohSetChar()
- * ----------------------------------------------------------------------------- */
- void DohSetChar(DOH *obj, const DOH *name, char *value) {
- Setattr(obj, (DOH *) name, NewString(value));
- }
- /* -----------------------------------------------------------------------------
- * DohSetFlag()
- * ----------------------------------------------------------------------------- */
- void DohSetFlagAttr(DOH *obj, const DOH *name, const DOH *attr) {
- Setattr(obj, (DOH *) name, attr ? attr : NewString("0"));
- }
- void DohSetFlag(DOH *obj, const DOH *name) {
- Setattr(obj, (DOH *) name, NewString("1"));
- }
- /* -----------------------------------------------------------------------------
- * DohSetVoid()
- * ----------------------------------------------------------------------------- */
- void DohSetVoid(DOH *obj, const DOH *name, void *value) {
- Setattr(obj, (DOH *) name, NewVoid(value, 0));
- }
- /* -----------------------------------------------------------------------------
- * DohIsSequence()
- * ----------------------------------------------------------------------------- */
- int DohIsSequence(const DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (!DohCheck(b))
- return 0;
- objinfo = b->type;
- if (objinfo->doh_list)
- return 1;
- else
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohGetitem()
- * ----------------------------------------------------------------------------- */
- DOH *DohGetitem(DOH *obj, int index) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_list && objinfo->doh_list->doh_getitem) {
- return (objinfo->doh_list->doh_getitem) (b, index);
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohSetitem()
- * ----------------------------------------------------------------------------- */
- int DohSetitem(DOH *obj, int index, const DOH *value) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_list && objinfo->doh_list->doh_setitem) {
- return (objinfo->doh_list->doh_setitem) (b, index, (DOH *) value);
- }
- return -1;
- }
- /* -----------------------------------------------------------------------------
- * DohDelitem()
- * ----------------------------------------------------------------------------- */
- int DohDelitem(DOH *obj, int index) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_list && objinfo->doh_list->doh_delitem) {
- return (objinfo->doh_list->doh_delitem) (b, index);
- }
- return -1;
- }
- /* -----------------------------------------------------------------------------
- * DohInsertitem()
- * ----------------------------------------------------------------------------- */
- int DohInsertitem(DOH *obj, int index, const DOH *value) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_list && objinfo->doh_list->doh_insitem) {
- return (objinfo->doh_list->doh_insitem) (b, index, (DOH *) value);
- }
- return -1;
- }
- /* -----------------------------------------------------------------------------
- * DohDelslice()
- * ----------------------------------------------------------------------------- */
- int DohDelslice(DOH *obj, int sindex, int eindex) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo = b->type;
- if (objinfo->doh_list && objinfo->doh_list->doh_delslice) {
- return (objinfo->doh_list->doh_delslice) (b, sindex, eindex);
- }
- return -1;
- }
- /* -----------------------------------------------------------------------------
- * DohIsFile()
- * ----------------------------------------------------------------------------- */
- int DohIsFile(const DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (!DohCheck(b))
- return 0;
- objinfo = b->type;
- if (objinfo->doh_file)
- return 1;
- else
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohRead()
- * ----------------------------------------------------------------------------- */
- int DohRead(DOH *obj, void *buffer, int length) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (DohCheck(obj)) {
- objinfo = b->type;
- if ((objinfo->doh_file) && (objinfo->doh_file->doh_read)) {
- return (objinfo->doh_file->doh_read) (b, buffer, length);
- }
- return -1;
- }
- /* Hmmm. Not a file. Maybe it's a real FILE */
- return (int)fread(buffer, 1, length, (FILE *) b);
- }
- /* -----------------------------------------------------------------------------
- * DohWrite()
- * ----------------------------------------------------------------------------- */
- int DohWrite(DOH *obj, const void *buffer, int length) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (DohCheck(obj)) {
- objinfo = b->type;
- if ((objinfo->doh_file) && (objinfo->doh_file->doh_write)) {
- return (objinfo->doh_file->doh_write) (b, buffer, length);
- }
- return -1;
- }
- /* Hmmm. Not a file. Maybe it's a real FILE */
- return (int)fwrite(buffer, 1, length, (FILE *) b);
- }
- /* -----------------------------------------------------------------------------
- * DohSeek()
- * ----------------------------------------------------------------------------- */
- int DohSeek(DOH *obj, long offset, int whence) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (DohCheck(obj)) {
- objinfo = b->type;
- if ((objinfo->doh_file) && (objinfo->doh_file->doh_seek)) {
- return (objinfo->doh_file->doh_seek) (b, offset, whence);
- }
- return -1;
- }
- return fseek((FILE *) b, offset, whence);
- }
- /* -----------------------------------------------------------------------------
- * DohTell()
- * ----------------------------------------------------------------------------- */
- long DohTell(DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (DohCheck(obj)) {
- objinfo = b->type;
- if ((objinfo->doh_file) && (objinfo->doh_file->doh_tell)) {
- return (objinfo->doh_file->doh_tell) (b);
- }
- return -1;
- }
- return ftell((FILE *) b);
- }
- /* -----------------------------------------------------------------------------
- * DohGetc()
- * ----------------------------------------------------------------------------- */
- int DohGetc(DOH *obj) {
- static DOH *lastdoh = 0;
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (obj == lastdoh) {
- objinfo = b->type;
- return (objinfo->doh_file->doh_getc) (b);
- }
- if (DohCheck(obj)) {
- objinfo = b->type;
- if (objinfo->doh_file->doh_getc) {
- lastdoh = obj;
- return (objinfo->doh_file->doh_getc) (b);
- }
- return EOF;
- }
- return fgetc((FILE *) b);
- }
- /* -----------------------------------------------------------------------------
- * DohPutc()
- * ----------------------------------------------------------------------------- */
- int DohPutc(int ch, DOH *obj) {
- static DOH *lastdoh = 0;
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (obj == lastdoh) {
- objinfo = b->type;
- return (objinfo->doh_file->doh_putc) (b, ch);
- }
- if (DohCheck(obj)) {
- objinfo = b->type;
- if (objinfo->doh_file->doh_putc) {
- lastdoh = obj;
- return (objinfo->doh_file->doh_putc) (b, ch);
- }
- return EOF;
- }
- return fputc(ch, (FILE *) b);
- }
- /* -----------------------------------------------------------------------------
- * DohUngetc()
- * ----------------------------------------------------------------------------- */
- int DohUngetc(int ch, DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (DohCheck(obj)) {
- objinfo = b->type;
- if (objinfo->doh_file->doh_ungetc) {
- return (objinfo->doh_file->doh_ungetc) (b, ch);
- }
- return EOF;
- }
- return ungetc(ch, (FILE *) b);
- }
- /* -----------------------------------------------------------------------------
- * DohIsString()
- * ----------------------------------------------------------------------------- */
- int DohIsString(const DOH *obj) {
- DohBase *b = (DohBase *) obj;
- DohObjInfo *objinfo;
- if (!DohCheck(b))
- return 0;
- objinfo = b->type;
- if (objinfo->doh_string)
- return 1;
- else
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohReplace()
- * ----------------------------------------------------------------------------- */
- int DohReplace(DOH *src, const DOH *token, const DOH *rep, int flags) {
- DohBase *b = (DohBase *) src;
- DohObjInfo *objinfo;
- if (!token)
- return 0;
- if (!rep)
- rep = "";
- if (DohIsString(src)) {
- objinfo = b->type;
- if (objinfo->doh_string->doh_replace) {
- return (objinfo->doh_string->doh_replace) (b, (DOH *) token, (DOH *) rep, flags);
- }
- }
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohChop()
- * ----------------------------------------------------------------------------- */
- void DohChop(DOH *src) {
- DohBase *b = (DohBase *) src;
- DohObjInfo *objinfo;
- if (DohIsString(src)) {
- objinfo = b->type;
- if (objinfo->doh_string->doh_chop) {
- (objinfo->doh_string->doh_chop) (b);
- }
- }
- }
- /* -----------------------------------------------------------------------------
- * DohSetFile()
- * ----------------------------------------------------------------------------- */
- void DohSetfile(DOH *ho, DOH *file) {
- DohBase *h = (DohBase *) ho;
- DohObjInfo *objinfo;
- if (!h)
- return;
- objinfo = h->type;
- if (objinfo->doh_setfile)
- (objinfo->doh_setfile) (h, file);
- }
- /* -----------------------------------------------------------------------------
- * DohGetFile()
- * ----------------------------------------------------------------------------- */
- DOH *DohGetfile(const DOH *ho) {
- DohBase *h = (DohBase *) ho;
- DohObjInfo *objinfo;
- if (!h)
- return 0;
- objinfo = h->type;
- if (objinfo->doh_getfile)
- return (objinfo->doh_getfile) (h);
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohSetLine()
- * ----------------------------------------------------------------------------- */
- void DohSetline(DOH *ho, int l) {
- DohBase *h = (DohBase *) ho;
- DohObjInfo *objinfo;
- if (!h)
- return;
- objinfo = h->type;
- if (objinfo->doh_setline)
- (objinfo->doh_setline) (h, l);
- }
- /* -----------------------------------------------------------------------------
- * DohGetLine()
- * ----------------------------------------------------------------------------- */
- int DohGetline(const DOH *ho) {
- DohBase *h = (DohBase *) ho;
- DohObjInfo *objinfo;
- if (!h)
- return 0;
- objinfo = h->type;
- if (objinfo->doh_getline)
- return (objinfo->doh_getline) (h);
- return 0;
- }
- /* -----------------------------------------------------------------------------
- * DohGetmeta()
- * ----------------------------------------------------------------------------- */
- DOH *DohGetmeta(DOH *ho, const DOH *name) {
- DohBase *h = (DohBase *) ho;
- if (!DohCheck(ho))
- return 0;
- if (!h->meta)
- return 0;
- return DohGetattr(h->meta, name);
- }
- /* -----------------------------------------------------------------------------
- * DohGetmeta()
- * ----------------------------------------------------------------------------- */
- int DohSetmeta(DOH *ho, const DOH *name, const DOH *value) {
- DohBase *h = (DohBase *) ho;
- if (!DohCheck(ho))
- return 0;
- if (!h->meta)
- h->meta = NewHash();
- return DohSetattr(h->meta, name, value);
- }
- /* -----------------------------------------------------------------------------
- * DohDelmeta()
- * ----------------------------------------------------------------------------- */
- int DohDelmeta(DOH *ho, const DOH *name) {
- DohBase *h = (DohBase *) ho;
- if (!DohCheck(ho))
- return 0;
- if (!h->meta)
- return 0;
- return DohDelattr(h->meta, name);
- }
- /* -----------------------------------------------------------------------------
- * DohSetmark()
- * ----------------------------------------------------------------------------- */
- void DohSetmark(DOH *ho, int x) {
- DohBase *h = (DohBase *) ho;
- h->flag_usermark = x;
- }
- int DohGetmark(DOH *ho) {
- DohBase *h = (DohBase *) ho;
- return h->flag_usermark;
- }
- /* -----------------------------------------------------------------------------
- * DohCall()
- *
- * Invokes a function via DOH. A Function is represented by a hash table with
- * the following attributes:
- *
- * "builtin" - Pointer to built-in function (if any)
- *
- * (Additional attributes may be added later)
- *
- * Returns a DOH object with result on success. Returns NULL on error
- * ----------------------------------------------------------------------------- */
- DOH *DohCall(DOH *func, DOH *args) {
- DOH *result;
- DohFuncPtr_t builtin;
- builtin.p = GetVoid(func, "builtin");
- if (!builtin.p)
- return 0;
- result = (*builtin.func) (args);
- return result;
- }
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