/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2016, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * Empire is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
* ---
*
* xundump.c: Load back xdump output
- *
+ *
* Known contributors to this file:
* Ron Koenderink, 2005
- * Markus Armbruster, 2005-2007
+ * Markus Armbruster, 2005-2014
*/
/*
+ * See doc/xdump! And keep it up-to-date.
+ *
+ * Parsing of machine-readable xdump is not precise: it recognizes
+ * comments, accepts whitespace in place of single space, and accepts
+ * the full human-readable field syntax instead of its machine-
+ * readable subset.
+ *
* FIXME:
* - Normalize terminology: table/rows/columns or file/records/fields
* - Loading tables with NSC_STRING elements more than once leaks memory
* TODO:
- * - Check each partial table supplies the same rows
- * - Check EFF_CFG tables are dense
- * - Symbolic references to non-symbol tables
* - Symbolic array indexes
+ * - Option to treat missing and unknown fields as warning, not error
* TODO, but hardly worth the effort:
* - Permit reordering of array elements
- * - Permit repetition of array elements in split tables
*/
#include <config.h>
#include <ctype.h>
+#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
#include <time.h>
#include "file.h"
#include "match.h"
+#include "nat.h"
#include "nsc.h"
#include "optlist.h"
-#include "prototypes.h"
-
-static char *fname;
-static int lineno;
-static int human;
-static int ellipsis, is_partial;
-static int cur_type, cur_id;
-static void *cur_obj;
-static int cur_obj_is_blank;
-static int nflds;
-static struct castr **fldca;
-static int *fldidx;
-static int *caflds;
-static unsigned char *caseen;
+#include "xdump.h"
+
+static char *fname; /* Name of file being read */
+static int lineno; /* Current line number */
+
+static int cur_type; /* Current table's file type */
+static int partno; /* Counts from 0..#parts-1 */
+static int cur_id; /* and its index in the table */
+static int old_nelem;
+static unsigned char *idgap; /* idgap && idgap[ID] iff part#0 lacks ID */
+static int idgap_len; /* #elements in idgap[] */
+
+static int human; /* Reading human-readable syntax? */
+static int ellipsis; /* Header ended with ...? */
+static int nflds; /* #fields in input records */
+static struct castr **fldca; /* Map field number to selector */
+static int *fldidx; /* Map field number to index */
+static struct valstr *fldval; /* Map field number to value */
+static int *caflds; /* Map selector number to #fields seen */
+static int *cafldspp; /* ditto, in previous parts */
static int gripe(char *, ...) ATTRIBUTE((format (printf, 1, 2)));
static int deffld(int, char *, int);
-static int defellipsis(int fldno);
static int chkflds(void);
static int setnum(int, double);
static int setstr(int, char *);
-static int xunsymbol(char *, struct castr *, int);
static int setsym(int, char *);
static int mtsymset(int, long *);
static int add2symset(int, long *, char *);
-static int xundump1(FILE *);
-static int xundump2(FILE *, int, struct castr *);
+static int xubody(FILE *);
+static int xutail(FILE *, struct castr *);
+
+/*
+ * Does the code hardcode indexes for table @type?
+ */
+static int
+have_hardcoded_indexes(int type)
+{
+ return type == EF_ITEM || type == EF_SECTOR_CHR
+ || type == EF_INFRASTRUCTURE;
+}
+
+/*
+ * Okay to truncate table @type?
+ */
+static int
+may_truncate(int type)
+{
+ return empfile[type].nent < 0 && !have_hardcoded_indexes(type);
+}
+
+/*
+ * Is @type's 0-th selector a usable ID?
+ */
+static int
+ca0_is_id(int type)
+{
+ struct castr *ca = ef_cadef(type);
+
+ return ca[0].ca_table == type && !(ca[0].ca_flags & NSC_EXTRA);
+}
+
+/*
+ * Can we fill in gaps in table @type?
+ */
+static int
+can_fill_gaps(int type)
+{
+ return (ca0_is_id(type) || type == EF_SECTOR || type == EF_REALM)
+ && !have_hardcoded_indexes(type);
+}
+
+/*
+ * Is table @type's @id-th record @obj redundant for xundump()?
+ */
+int
+xundump_redundant(int type, int id, void *obj)
+{
+ char buf[EF_WITH_CADEF_MAX_ENTRY_SIZE];
+
+ if (!can_fill_gaps(type))
+ return 0;
+
+ if (may_truncate(type) && id == ef_nelem(type) - 1)
+ return 0;
+
+ ef_blank(type, id, buf);
+ if (ef_flags(type) & EFF_TYPED)
+ return ef_typedstr_eq((struct ef_typedstr *)buf,
+ (struct ef_typedstr *)obj);
+ return !memcmp(obj, buf, empfile[type].size);
+}
+/*
+ * Gripe about the current line to stderr, return -1.
+ */
static int
gripe(char *fmt, ...)
{
return -1;
}
+/* Make TYPE the current table. */
+static void
+tbl_start(int type)
+{
+ cur_type = type;
+ partno = 0;
+ cur_id = -1;
+ old_nelem = type == EF_BAD ? 0 : ef_nelem(type);
+ idgap = NULL;
+ idgap_len = 0;
+}
+
+/* End the current table. */
+static void
+tbl_end(void)
+{
+ free(idgap);
+ tbl_start(EF_BAD);
+}
+
+/*
+ * Seek to current table's @id-th object.
+ * Extend the table if necessary.
+ * Save @id in cur_id.
+ * Return the object on success, NULL on failure.
+ */
+static void *
+tbl_seek(int id)
+{
+ void *obj;
+
+ if (id >= ef_nelem(cur_type)) {
+ if (!ef_ensure_space(cur_type, id, 1)) {
+ gripe("can't grow table to hold this row");
+ return NULL;
+ }
+ }
+
+ obj = ef_ptr(cur_type, id);
+ if (CANT_HAPPEN(!obj))
+ return NULL;
+ cur_id = id;
+ return obj;
+}
+
+/*
+ * Omit @id1..@id2-1.
+ * Reset the omitted objects to default state.
+ */
+static void
+omit_ids(int id1, int id2)
+{
+ int i;
+
+ if (id1 >= id2)
+ return;
+
+ idgap = realloc(idgap, id2 * sizeof(*idgap));
+ for (i = idgap_len; i < id1; i++)
+ idgap[i] = 0;
+ for (i = id1; i < id2; i++) {
+ ef_blank(cur_type, i, ef_ptr(cur_type, i));
+ idgap[i] = 1;
+ }
+ idgap_len = id2;
+}
+
+/*
+ * Return the smallest non-omitted ID in @id1..@id2-1 if any, else -1.
+ */
+static int
+expected_id(int id1, int id2)
+{
+ int i;
+
+ for (i = id1; i < id2; i++) {
+ if (i >= idgap_len || !idgap[i])
+ return i;
+ }
+ return -1;
+}
+
+/*
+ * Finish table part.
+ * If the table has variable length, truncate it.
+ * Else ensure we're omitting the same objects as the previous parts.
+ * Reset any omitted objects to default state.
+ * Return 0 on success, -1 on failure.
+ */
+static int
+tbl_part_done(void)
+{
+ struct empfile *ep = &empfile[cur_type];
+
+ if (cur_id + 1 < ep->fids) {
+ if (partno == 0) {
+ if (may_truncate(cur_type)) {
+ if (!ef_truncate(cur_type, cur_id + 1))
+ return -1;
+ } else {
+ if (!can_fill_gaps(cur_type))
+ return gripe("expected %d more rows",
+ ep->fids - (cur_id + 1));
+ omit_ids(cur_id + 1, ep->fids);
+ }
+ } else {
+ if (expected_id(cur_id + 1, ep->fids) >= 0)
+ return gripe("table's first part has more rows");
+ }
+ }
+
+ partno++;
+ cur_id = -1;
+ return 0;
+}
+
+/*
+ * Get selector for field @fldno.
+ * Assign the field's selector index to *@idx, unless it is null.
+ * Return the selector on success, null pointer on error.
+ */
+static struct castr *
+getfld(int fldno, int *idx)
+{
+ if (fldno >= nflds) {
+ gripe("too many fields, expected only %d", nflds);
+ return NULL;
+ }
+ if (CANT_HAPPEN(fldno < 0))
+ return NULL;
+ if (idx)
+ *idx = fldidx[fldno];
+ return fldca[fldno];
+}
+
+/*
+ * Find the field for selector @ca with index @idx.
+ * Return the field number if it exists, else -1.
+ */
+static int
+fld_find(struct castr *ca, int idx)
+{
+ int i;
+
+ for (i = 0; i < nflds; i++) {
+ if (fldca[i] == ca && fldidx[i] == idx)
+ return i;
+ }
+ return -1;
+}
+
+/*
+ * Get the current row's ID.
+ * Current table's 0-th selector must be a usable ID.
+ * Return ID on success, -1 on failure.
+ */
+static int
+rowid(void)
+{
+ struct castr *ca = ef_cadef(cur_type);
+ int fldno, id, max_id;
+
+ if (CANT_HAPPEN(partno != 0 || !ca0_is_id(cur_type)))
+ return -1;
+
+ fldno = fld_find(ca, 0);
+ if (fldno < 0)
+ return cur_id + 1; /* ID not specified */
+ /*
+ * Field values not representable as int will be rejected by
+ * putnum() or putstr(). Leave the error reporting to them, and
+ * simply pick the next ID here.
+ */
+ if (fldval[fldno].val_type != NSC_DOUBLE)
+ return cur_id + 1;
+ id = fldval[fldno].val_as.dbl;
+ if (id != fldval[fldno].val_as.dbl)
+ return cur_id + 1;
+
+ if (id != cur_id + 1 && !can_fill_gaps(cur_type))
+ return gripe("expected %d in field %d",
+ cur_id + 1, fldno + 1);
+ if (id <= cur_id)
+ return gripe("field %d must be > %d", fldno + 1, cur_id);
+ max_id = ef_id_limit(cur_type);
+ if (id > max_id)
+ return gripe("field %d must be <= %d", fldno + 1, max_id);
+
+ return id;
+}
+
+/*
+ * Find the field @name with index @idx and value representable as long.
+ * Return the field number if it exists, else -1.
+ */
+static int
+fld_find_long_by_name(char *name, int idx)
+{
+ int i;
+
+ for (i = 0; i < nflds; i++) {
+ if (!strcmp(fldca[i]->ca_name, name) && fldidx[i] == idx)
+ break;
+ }
+
+ if (i == nflds || fldval[i].val_type != NSC_DOUBLE
+ || (long)fldval[i].val_as.dbl != fldval[i].val_as.dbl)
+ return -1;
+ return i;
+}
+
+/*
+ * Get the current row's ID.
+ * Current table's type must be EF_SECTOR.
+ * Return ID on success, -1 on failure.
+ */
+static int
+rowid_sect(void)
+{
+ int fldno_x, fldno_y, id;
+ coord x, y;
+
+ if (CANT_HAPPEN(partno != 0 || cur_type != EF_SECTOR))
+ return -1;
+
+ fldno_x = fld_find_long_by_name("xloc", 0);
+ fldno_y = fld_find_long_by_name("yloc", 0);
+ if (fldno_x < 0 || fldno_y < 0)
+ return cur_id + 1;
+
+ id = sctoff((long)fldval[fldno_x].val_as.dbl,
+ (long)fldval[fldno_y].val_as.dbl);
+ /* Note: reporting values out of range left to putnum() */
+ if (id <= cur_id) {
+ sctoff2xy(&x, &y, cur_id);
+ return gripe("coordinates in fields %d,%d must be > %d,%d",
+ fldno_x + 1, fldno_y + 1, x, y);
+ }
+ return id;
+}
+
+/*
+ * Get the current row's ID.
+ * Current table's type must be EF_REALM.
+ * Return ID on success, -1 on failure.
+ */
+static int
+rowid_realm(void)
+{
+ int fldno_cnum, fldno_realm, id;
+ long realm, cnum;
+
+ if (CANT_HAPPEN(partno != 0 || cur_type != EF_REALM))
+ return -1;
+
+ fldno_cnum = fld_find_long_by_name("cnum", 0);
+ fldno_realm = fld_find_long_by_name("realm", 0);
+ if (fldno_cnum < 0 || fldno_realm < 0)
+ return cur_id + 1;
+
+ realm = (long)fldval[fldno_realm].val_as.dbl;
+ cnum = (long)fldval[fldno_cnum].val_as.dbl;
+ if (cnum < 0 || cnum >= MAXNOC)
+ return gripe("field %d must be between 0 and %d",
+ fldno_cnum, MAXNOC);
+ if (realm < 0 || realm >= MAXNOR)
+ return gripe("field %d must be between 0 and %d",
+ fldno_realm, MAXNOR);
+ id = realm + cnum * MAXNOR;
+ if (id <= cur_id)
+ return gripe("fields %d,%d must be > (%d,%d)",
+ fldno_cnum + 1, fldno_realm + 1,
+ cur_id / MAXNOR, cur_id % MAXNOR);
+ return id;
+}
+/*
+ * Get the current row's object.
+ * Extend the table if necessary.
+ * Save ID in cur_id.
+ * Return the object on success, NULL on failure.
+ */
+static void *
+rowobj(void)
+{
+ int last_id = cur_id;
+ int id;
+ void *obj;
+
+ if (partno) {
+ id = expected_id(cur_id + 1, empfile[cur_type].fids);
+ if (id < 0) {
+ gripe("table's first part doesn't have this row");
+ return NULL;
+ }
+ } else if (ca0_is_id(cur_type)) {
+ id = rowid();
+ if (id < 0)
+ return NULL;
+ } else if (cur_type == EF_SECTOR) {
+ id = rowid_sect();
+ if (id < 0)
+ return NULL;
+ } else if (cur_type == EF_REALM) {
+ id = rowid_realm();
+ if (id < 0)
+ return NULL;
+ } else
+ id = last_id + 1;
+ if (id > ef_id_limit(cur_type)) {
+ gripe("too many rows");
+ return NULL;
+ }
+
+ obj = tbl_seek(id);
+ if (obj && !partno)
+ omit_ids(last_id + 1, id);
+ return obj;
+}
+
+/*
+ * Is a new value for field @fldno required to match the old one?
+ */
+static int
+fldval_must_match(int fldno)
+{
+ struct castr *ca = ef_cadef(cur_type);
+ int i = fldca[fldno] - ca;
+
+ /*
+ * Value must match if:
+ * it's for a const selector, unless the object is still blank, or
+ * it was already given in a previous part of a split table.
+ */
+ return (cur_id < old_nelem && (fldca[fldno]->ca_flags & NSC_CONST))
+ || fldidx[fldno] < cafldspp[i];
+}
+
+/*
+ * Set @obj's field @fldno to @dbl.
+ * Return 0 on success, -1 on error.
+ */
+static int
+putnum(void *obj, int fldno, double dbl)
+{
+ struct castr *ca = fldca[fldno];
+ int idx = fldidx[fldno];
+ char *memb_ptr;
+ double old, new;
+
+ memb_ptr = (char *)obj + ca->ca_off;
+
+ switch (ca->ca_type) {
+ case NSC_CHAR:
+ old = ((signed char *)memb_ptr)[idx];
+ new = ((signed char *)memb_ptr)[idx] = (signed char)dbl;
+ break;
+ case NSC_UCHAR:
+ old = ((unsigned char *)memb_ptr)[idx];
+ new = ((unsigned char *)memb_ptr)[idx] = (unsigned char)dbl;
+ break;
+ case NSC_SHORT:
+ old = ((short *)memb_ptr)[idx];
+ new = ((short *)memb_ptr)[idx] = (short)dbl;
+ break;
+ case NSC_USHORT:
+ old = ((unsigned short *)memb_ptr)[idx];
+ new = ((unsigned short *)memb_ptr)[idx] = (unsigned short)dbl;
+ break;
+ case NSC_INT:
+ old = ((int *)memb_ptr)[idx];
+ new = ((int *)memb_ptr)[idx] = (int)dbl;
+ break;
+ case NSC_LONG:
+ old = ((long *)memb_ptr)[idx];
+ new = ((long *)memb_ptr)[idx] = (long)dbl;
+ break;
+ case NSC_XCOORD:
+ old = ((coord *)memb_ptr)[idx];
+ /* FIXME use variant of xrel() that takes orig instead of nation */
+ if (old >= WORLD_X / 2)
+ old -= WORLD_X;
+ new = ((coord *)memb_ptr)[idx] = XNORM((coord)dbl);
+ if (new >= WORLD_X / 2)
+ new -= WORLD_X;
+ break;
+ case NSC_YCOORD:
+ old = ((coord *)memb_ptr)[idx];
+ /* FIXME use variant of yrel() that takes orig instead of nation */
+ if (old >= WORLD_Y / 2)
+ old -= WORLD_Y;
+ new = ((coord *)memb_ptr)[idx] = YNORM((coord)dbl);
+ if (new >= WORLD_Y / 2)
+ new -= WORLD_Y;
+ break;
+ case NSC_FLOAT:
+ old = ((float *)memb_ptr)[idx];
+ ((float *)memb_ptr)[idx] = (float)dbl;
+ new = dbl; /* suppress new != dbl check */
+ break;
+ case NSC_DOUBLE:
+ old = ((double *)memb_ptr)[idx];
+ ((double *)memb_ptr)[idx] = dbl;
+ new = dbl; /* suppress new != dbl check */
+ break;
+ case NSC_TIME:
+ old = ((time_t *)memb_ptr)[idx];
+ new = ((time_t *)memb_ptr)[idx] = (time_t)dbl;
+ break;
+ default:
+ return gripe("field %d doesn't take numbers", fldno + 1);
+ }
+
+ if (fldval_must_match(fldno) && old != dbl)
+ return gripe("value for field %d must be %g", fldno + 1, old);
+ if (new != dbl)
+ return gripe("field %d can't hold this value", fldno + 1);
+
+ return 0;
+}
+
+/*
+ * Set obj's field @fldno to @str.
+ * Return 0 on success, -1 on error.
+ */
+static int
+putstr(void *obj, int fldno, char *str)
+{
+ struct castr *ca = fldca[fldno];
+ int idx = fldidx[fldno];
+ int must_match, mismatch;
+ size_t sz, len;
+ char *memb_ptr, *old;
+
+ memb_ptr = (char *)obj + ca->ca_off;
+ must_match = fldval_must_match(fldno);
+ mismatch = 0;
+
+ switch (ca->ca_type) {
+ case NSC_STRING:
+ old = ((char **)memb_ptr)[idx];
+ if (must_match)
+ mismatch = old ? !str || strcmp(old, str) : !!str;
+ else
+ /* FIXME may leak old value */
+ ((char **)memb_ptr)[idx] = str ? strdup(str) : NULL;
+ len = -1; /* unlimited */
+ break;
+ case NSC_STRINGY:
+ if (CANT_HAPPEN(idx))
+ return -1;
+ if (!str)
+ return gripe("field %d doesn't take nil", fldno + 1);
+ /* Wart: if ca_len <= 1, the terminating null may be omitted */
+ sz = ca->ca_len;
+ len = sz > 1 ? sz - 1 : sz;
+ if (strlen(str) > len)
+ return gripe("field %d takes at most %d characters",
+ fldno + 1, (int)len);
+ old = memb_ptr;
+ if (must_match)
+ mismatch = !str || strncmp(old, str, len);
+ else
+ strncpy(memb_ptr, str, sz);
+ break;
+ default:
+ return gripe("field %d doesn't take strings", fldno + 1);
+ }
+
+ if (mismatch) {
+ if (old)
+ return gripe("value for field %d must be \"%.*s\"",
+ fldno + 1, (int)len, old);
+ else
+ return gripe("value for field %d must be nil", fldno + 1);
+ }
+
+ return 0;
+}
+
+/*
+ * Save the current row's fields in its object.
+ * Return 0 on success, -1 on failure.
+ */
+static int
+putrow(void)
+{
+ int i, ret = 0;
+ void *obj;
+
+ obj = rowobj();
+ if (!obj)
+ return -1;
+
+ for (i = 0; i < nflds; i++) {
+ switch (fldval[i].val_type) {
+ case NSC_DOUBLE:
+ ret |= putnum(obj, i, fldval[i].val_as.dbl);
+ break;
+ case NSC_STRING:
+ ret |= putstr(obj, i, fldval[i].val_as.str.base);
+ free(fldval[i].val_as.str.base);
+ break;
+ default:
+ CANT_REACH();
+ ret = -1;
+ }
+ }
+
+ return ret;
+}
+
+/*
+ * Read and ignore field separators from @fp.
+ * Return first character that is not a field separator.
+ */
static int
skipfs(FILE *fp)
{
return ch;
}
-static int
-getid(FILE *fp, char *buf)
-{
- int n;
- if (fscanf(fp, "%1023[^#()<>=#\" \t\n]%n", buf, &n) != 1
- || !isalpha(buf[0]))
- return -1;
- return n;
-}
-
+/*
+ * Decode escape sequences in @buf.
+ * Return @buf on success, null pointer on failure.
+ */
static char *
xuesc(char *buf)
{
char *src, *dst;
- int octal_chr, n;
+ unsigned octal_chr;
+ int n;
dst = buf;
src = buf;
return buf;
}
+/*
+ * Read an identifier from @fp into @buf.
+ * @buf must have space for 1024 characters.
+ * Return number of characters read on success, -1 on failure.
+ */
+static int
+getid(FILE *fp, char *buf)
+{
+ int n;
+ if (fscanf(fp, "%1023[^\"#()<>= \t\n]%n", buf, &n) != 1
+ || !isalpha(buf[0]))
+ return -1;
+ xuesc(buf);
+ return n;
+}
+
+/*
+ * Try to read a field name from @fp.
+ * @i is the field number, counting from zero.
+ * If a name is read, set fldca[@i] and fldidx[@i] for it, and update
+ * caflds[].
+ * Return 1 if a name or ... was read, 0 on end of line, -1 on error.
+ */
static int
xufldname(FILE *fp, int i)
{
ch = skipfs(fp);
switch (ch) {
case EOF:
- return gripe("Unexpected EOF");
+ return gripe("unexpected EOF");
case '\n':
+ nflds = i - (ellipsis != 0);
if (chkflds() < 0)
return -1;
lineno++;
return 0;
case '.':
if (getc(fp) != '.' || getc(fp) != '.')
- return gripe("Junk in header field %d", i + 1);
+ return gripe("junk in header field %d", i + 1);
if (i == 0)
- return gripe("... not allowed in field 1");
- if (defellipsis(i) < 0)
- return -1;
+ return gripe("header fields expected");
+ ellipsis = 1;
ch = skipfs(fp);
if (ch != EOF && ch != '\n')
- return gripe("Junk after ...");
+ return gripe("junk after ...");
ungetc(ch, fp);
return 1;
default:
ungetc(ch, fp);
if (getid(fp, buf) < 0)
- return gripe("Junk in header field %d", i + 1);
+ return gripe("junk in header field %d", i + 1);
ch = getc(fp);
if (ch != '(') {
ungetc(ch, fp);
ungetc(ch, fp);
if (isdigit(ch) || ch == '-' || ch == '+') {
if (fscanf(fp, "%d", &idx) != 1)
- return gripe("Malformed number in index of header field %d",
+ return gripe("malformed number in index of header field %d",
i + 1);
if (idx < 0)
- return gripe("Index must not be negative in header field %d",
+ return gripe("index must not be negative in header field %d",
i + 1);
} else {
if (getid(fp, buf) < 0)
- return gripe("Malformed index in header field %d", i + 1);
- return gripe("Symbolic index in header field %d not yet implemented",
+ return gripe("malformed index in header field %d", i + 1);
+ return gripe("symbolic index in header field %d not yet implemented",
i + 1);
}
ch = getc(fp);
if (ch != ')')
- return gripe("Malformed index in header field %d", i + 1);
+ return gripe("malformed index in header field %d", i + 1);
return deffld(i, buf, idx);
}
}
+/*
+ * Try to read a field value from @fp.
+ * @i is the field number, counting from zero.
+ * Return 1 if a value was read, 0 on end of line, -1 on error.
+ */
static int
xufld(FILE *fp, int i)
{
- int ch;
+ int ch, j;
char buf[1024];
double dbl;
long set;
ch = skipfs(fp);
switch (ch) {
case EOF:
- return gripe("Unexpected EOF");
+ return gripe("unexpected EOF");
case '\n':
- if (i != nflds) {
- if (fldca[i]->ca_type != NSC_STRINGY && fldca[i]->ca_len)
- return gripe("Field %s(%d) missing",
- fldca[i]->ca_name, fldidx[i]);
- return gripe("Field %s missing", fldca[i]->ca_name);
+ CANT_HAPPEN(i > nflds);
+ for (j = i; j < nflds; j++) {
+ if (CA_IS_ARRAY(fldca[j]))
+ gripe("field '%s(%d)' missing",
+ fldca[j]->ca_name, fldidx[j]);
+ else
+ gripe("field '%s' missing", fldca[j]->ca_name);
}
+ if (i != nflds || putrow() < 0)
+ return -1;
lineno++;
- return 0;
+ return i < nflds ? -1 : 0;
case '+': case '-': case '.':
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
ungetc(ch, fp);
if (fscanf(fp, "%lg", &dbl) != 1)
- return gripe("Malformed number in field %d", i + 1);
+ return gripe("malformed number in field %d", i + 1);
return setnum(i, dbl);
case '"':
ch = getc(fp);
else {
ungetc(ch, fp);
if (fscanf(fp, "%1023[^\"\n]", buf) != 1 || getc(fp) != '"')
- return gripe("Malformed string in field %d", i + 1);
+ return gripe("malformed string in field %d", i + 1);
if (!xuesc(buf))
- return gripe("Invalid escape sequence in field %d",
+ return gripe("invalid escape sequence in field %d",
i + 1);
}
return setstr(i, buf);
for (;;) {
ch = skipfs(fp);
if (ch == EOF || ch == '\n')
- return gripe("Unmatched '(' in field %d", i + 1);
+ return gripe("unmatched '(' in field %d", i + 1);
if (ch == ')')
break;
ungetc(ch, fp);
if (getid(fp, buf) < 0)
- return gripe("Junk in field %d", i + 1);
+ return gripe("junk in field %d", i + 1);
if (add2symset(i, &set, buf) < 0)
return -1;
}
default:
ungetc(ch, fp);
if (getid(fp, buf) < 0)
- return gripe("Junk in field %d", i + 1);
+ return gripe("junk in field %d", i + 1);
if (!strcmp(buf, "nil"))
return setstr(i, NULL);
else
}
}
+/*
+ * Read fields from @fp.
+ * Use @parse() to read each field.
+ * Return number of fields read on success, -1 on error.
+ */
static int
xuflds(FILE *fp, int (*parse)(FILE *, int))
{
if (ch == '\n')
ungetc(ch, fp);
else if (ch != ' ' && ch != '\t')
- return gripe("Bad field separator after field %d", i + 1);
+ return gripe("bad field separator after field %d", i + 1);
}
}
+/*
+ * Define the @fldno-th field.
+ * If @idx is negative, define as selector @name, else as @name(@idx).
+ * Set fldca[@fldno] and fldidx[@fldno] accordingly.
+ * Update caflds[].
+ * Return 1 on success, -1 on error.
+ */
static int
deffld(int fldno, char *name, int idx)
{
int res;
res = stmtch(name, ca, offsetof(struct castr, ca_name),
- sizeof(struct castr));
+ sizeof(struct castr));
if (res < 0)
- return gripe("Header %s of field %d is %s", name, fldno + 1,
- res == M_NOTUNIQUE ? "ambiguous" : "unknown");
- if (ca[res].ca_type != NSC_STRINGY && ca[res].ca_len != 0) {
+ return gripe("%s header '%s' in field %d",
+ res == M_NOTUNIQUE ? "ambiguous" : "unknown",
+ name, fldno + 1);
+ if ((ca[res].ca_flags & NSC_EXTRA) || CANT_HAPPEN(ca[res].ca_get))
+ return gripe("extraneous header '%s' in field %d", name, fldno + 1);
+ if (CA_IS_ARRAY(&ca[res])) {
if (idx < 0)
- return gripe("Header %s requires an index in field %d",
+ return gripe("header '%s' requires an index in field %d",
ca[res].ca_name, fldno + 1);
+ if (idx != caflds[res] && idx < ca[res].ca_len)
+ return gripe("expected header '%s(%d)' in field %d",
+ ca[res].ca_name, caflds[res], fldno + 1);
if (idx >= ca[res].ca_len)
- return gripe("Header %s(%d) index out of bounds in field %d",
- ca[res].ca_name, idx, fldno + 1);
- if (idx < caflds[res])
- return gripe("Duplicate header %s(%d) in field %d",
+ return gripe("unexpected header '%s(%d)' in field %d",
ca[res].ca_name, idx, fldno + 1);
- if (idx > caflds[res])
- return gripe("Expected header %s(%d) in field %d",
- ca[res].ca_name, caflds[res], fldno + 1);
} else {
if (idx >= 0)
- return gripe("Header %s doesn't take an index in field %d",
+ return gripe("header '%s' doesn't take an index in field %d",
ca[res].ca_name, fldno + 1);
idx = 0;
- if (caflds[res] && !caseen[res])
- /* FIXME doesn't catch dupes within table part when caseen[res] */
- return gripe("Duplicate header %s in field %d",
+ if (caflds[res])
+ return gripe("duplicate header '%s' in field %d",
ca[res].ca_name, fldno + 1);
}
fldca[fldno] = &ca[res];
fldidx[fldno] = idx;
- if (!caseen[res])
- caflds[res]++;
+ caflds[res]++;
return 1;
}
-static int
-defellipsis(int fldno)
-{
- struct castr *ca = ef_cadef(cur_type);
-
- if (ca[0].ca_table != cur_type)
- return gripe("Table %s doesn't support ...", ef_nameof(cur_type));
- ellipsis = fldno;
- is_partial = 1;
- return 0;
-}
-
+/*
+ * Check fields in xdump are sane.
+ * Return 0 on success, -1 on error.
+ */
static int
chkflds(void)
{
struct castr *ca = ef_cadef(cur_type);
- int i, len, res = 0;
-
- if (is_partial) {
- /* Require index field */
- if (!caflds[0])
- return gripe("Header field %s required with ...", ca[0].ca_name);
- /* Want the index field again in continued table: */
- caflds[0] = 0;
- return 0;
- }
+ int i, len, cafldsmax, res = 0;
+ if (ellipsis)
+ return res; /* table is split, another part expected */
+
+ /* Check for missing fields */
for (i = 0; ca[i].ca_name; i++) {
+ cafldsmax = MAX(caflds[i], cafldspp[i]);
if (ca[i].ca_flags & NSC_EXTRA)
continue;
- len = ca[i].ca_type != NSC_STRINGY ? ca[i].ca_len : 0;
- if (!len && !caflds[i])
- res = gripe("Header field %s missing", ca[i].ca_name);
- else if (len && caflds[i] == len - 1)
- res = gripe("Header field %s(%d) missing",
+ len = CA_ARRAY_LEN(&ca[i]);
+ if (!len && !cafldsmax)
+ res = gripe("header '%s' missing", ca[i].ca_name);
+ else if (len && cafldsmax == len - 1)
+ res = gripe("header '%s(%d)' missing",
ca[i].ca_name, len - 1);
- else if (len && caflds[i] < len - 1)
- res = gripe("Header fields %s(%d) ... %s(%d) missing",
- ca[i].ca_name, caflds[i], ca[i].ca_name, len - 1);
+ else if (len && cafldsmax < len - 1)
+ res = gripe("header '%s(%d)' ... '%s(%d)' missing",
+ ca[i].ca_name, cafldsmax, ca[i].ca_name, len - 1);
}
return res;
}
-static struct castr *
-getfld(int fldno, int *idx)
-{
- if (fldno >= nflds) {
- gripe("Too many fields, expected only %d", nflds);
- return NULL;
- }
- if (CANT_HAPPEN(fldno < 0))
- return NULL;
- if (idx)
- *idx = fldidx[fldno];
- return fldca[fldno];
-}
-
-static int
-fldval_must_match(int fldno)
-{
- struct castr *ca = ef_cadef(cur_type);
- int i = fldca[fldno] - ca;
-
- return (!cur_obj_is_blank && (fldca[fldno]->ca_flags & NSC_CONST))
- || caseen[i];
-}
-
-static void *
-getobj(struct castr *ca, int altid)
-{
- struct empfile *ep = &empfile[cur_type];
- int need_sentinel = !EF_IS_GAME_STATE(cur_type);
-
- if (!cur_obj) {
- if (ca->ca_table == cur_type)
- cur_id = altid;
- cur_obj_is_blank = cur_id >= ep->fids;
- if (cur_obj_is_blank) {
- /* TODO grow cache (and posssibly file) unless EFF_STATIC */
- if (cur_id < ep->csize - !!need_sentinel)
- ep->cids = ep->fids = cur_id + 1;
- /* else: ef_ptr() will fail */
- }
- cur_obj = ef_ptr(cur_type, cur_id);
- if (!cur_obj)
- gripe("Can't put ID %d into table %s, it holds only 0..%d.",
- cur_id, ep->name, ep->fids - 1);
- }
-
- return cur_obj;
-}
-
+/*
+ * Set value of field @fldno in current row to @dbl.
+ * Return 1 on success, -1 on error.
+ */
static int
setnum(int fldno, double dbl)
{
- struct castr *ca;
- int idx;
- char *memb_ptr;
- double old;
-
- ca = getfld(fldno, &idx);
- if (!ca)
- return -1;
-
- memb_ptr = getobj(ca, (int)dbl);
- if (!memb_ptr)
+ if (!getfld(fldno, NULL))
return -1;
- memb_ptr += ca->ca_off;
-
- /* FIXME check assignment preserves value */
- switch (ca->ca_type) {
- case NSC_CHAR:
- old = ((signed char *)memb_ptr)[idx];
- ((signed char *)memb_ptr)[idx] = (signed char)dbl;
- break;
- case NSC_UCHAR:
- case NSC_HIDDEN:
- old = ((unsigned char *)memb_ptr)[idx];
- ((unsigned char *)memb_ptr)[idx] = (unsigned char)dbl;
- break;
- case NSC_SHORT:
- old = ((short *)memb_ptr)[idx];
- ((short *)memb_ptr)[idx] = (short)dbl;
- break;
- case NSC_USHORT:
- old = ((unsigned short *)memb_ptr)[idx];
- ((unsigned short *)memb_ptr)[idx] = (unsigned short)dbl;
- break;
- case NSC_INT:
- old = ((int *)memb_ptr)[idx];
- ((int *)memb_ptr)[idx] = (int)dbl;
- break;
- case NSC_LONG:
- old = ((long *)memb_ptr)[idx];
- ((long *)memb_ptr)[idx] = (long)dbl;
- break;
- case NSC_XCOORD:
- old = ((coord *)memb_ptr)[idx];
- /* FIXME use variant of xrel() that takes orig instead of nation */
- if (old >= WORLD_X / 2)
- old -= WORLD_X;
- ((coord *)memb_ptr)[idx] = XNORM((coord)dbl);
- break;
- case NSC_YCOORD:
- old = ((coord *)memb_ptr)[idx];
- /* FIXME use variant of yrel() that takes orig instead of nation */
- if (old >= WORLD_Y / 2)
- old -= WORLD_Y;
- ((coord *)memb_ptr)[idx] = YNORM((coord)dbl);
- break;
- case NSC_FLOAT:
- old = ((float *)memb_ptr)[idx];
- ((float *)memb_ptr)[idx] = (float)dbl;
- break;
- case NSC_DOUBLE:
- old = ((double *)memb_ptr)[idx];
- ((double *)memb_ptr)[idx] = dbl;
- break;
- case NSC_TIME:
- old = ((time_t *)memb_ptr)[idx];
- ((time_t *)memb_ptr)[idx] = (time_t)dbl;
- break;
- default:
- return gripe("Field %d doesn't take numbers", fldno + 1);
- }
-
- if (fldval_must_match(fldno) && old != dbl)
- return gripe("Value for field %d must be %g", fldno + 1, old);
-
+ fldval[fldno].val_cat = NSC_VAL;
+ fldval[fldno].val_type = NSC_DOUBLE;
+ fldval[fldno].val_as.dbl = dbl;
return 1;
}
+/*
+ * Set value of field @fldno in current row to @str.
+ * Return 1 on success, -1 on error.
+ */
static int
setstr(int fldno, char *str)
{
- struct castr *ca;
- int must_match, idx;
- size_t len;
- char *memb_ptr, *old;
-
- ca = getfld(fldno, &idx);
- if (!ca)
- return -1;
-
- memb_ptr = getobj(ca, cur_id);
- if (!memb_ptr)
+ if (!getfld(fldno, NULL))
return -1;
- memb_ptr += ca->ca_off;
- must_match = fldval_must_match(fldno);
-
- switch (ca->ca_type) {
- case NSC_STRING:
- old = ((char **)memb_ptr)[idx];
- if (!must_match)
- ((char **)memb_ptr)[idx] = str ? strdup(str) : NULL;
- len = 65535; /* really SIZE_MAX, but that's C99 */
- break;
- case NSC_STRINGY:
- if (CANT_HAPPEN(idx))
- return -1;
- if (!str)
- return gripe("Field %d doesn't take nil", fldno + 1);
- len = ca->ca_len;
- if (strlen(str) > len)
- return gripe("Field %d takes at most %d characters",
- fldno + 1, (int)len);
- old = memb_ptr;
- if (!must_match)
- strncpy(memb_ptr, str, len);
- break;
- default:
- return gripe("Field %d doesn't take strings", fldno + 1);
- }
-
- if (must_match) {
- if (old && (!str || strncmp(old, str, len)))
- return gripe("Value for field %d must be \"%.*s\"",
- fldno + 1, (int)len, old);
- if (!old && str)
- return gripe("Value for field %d must be nil", fldno + 1);
- }
-
+ fldval[fldno].val_cat = NSC_VAL;
+ fldval[fldno].val_type = NSC_STRING;
+ fldval[fldno].val_as.str.base = str ? strdup(str) : NULL;
+ fldval[fldno].val_as.str.maxsz = INT_MAX;
+ /* really SIZE_MAX, but that's C99 */
return 1;
}
+/*
+ * Resolve symbol name @id in table referred to by @ca.
+ * Use field number @n for error messages.
+ * Return index in referred table on success, -1 on failure.
+ */
static int
xunsymbol(char *id, struct castr *ca, int n)
{
int i = ef_elt_byname(ca->ca_table, id);
if (i < 0)
- return gripe("%s %s symbol `%s' in field %d",
- i == M_NOTUNIQUE ? "Ambiguous" : "Unknown",
+ return gripe("%s %s symbol '%s' in field %d",
+ i == M_NOTUNIQUE ? "ambiguous" : "unknown",
ca->ca_name, id, n + 1);
return i;
}
+/*
+ * Map symbol index to symbol value.
+ * @ca is the table, and @i is the index in it.
+ */
static int
symval(struct castr *ca, int i)
{
int type = ca->ca_table;
- if (ef_check(type) < 0)
- return -1;
- if (ef_cadef(type) == symbol_ca)
+ if (type != EF_BAD && ef_cadef(type) == symbol_ca)
/* symbol table, value is in the table */
return ((struct symbol *)ef_ptr(type, i))->value;
/* value is the table index */
return i;
}
+/*
+ * Set value of field @fldno in current object to value of symbol @sym.
+ * Return 1 on success, -1 on error.
+ */
static int
setsym(int fldno, char *sym)
{
return -1;
if (ca->ca_table == EF_BAD || (ca->ca_flags & NSC_BITS))
- return gripe("Field %d doesn't take symbols", fldno + 1);
+ return gripe("field %d doesn't take symbols", fldno + 1);
i = xunsymbol(sym, ca, fldno);
if (i < 0)
return setnum(fldno, symval(ca, i));
}
+/*
+ * Create an empty symbol set for field @fldno in *@set.
+ * Return 1 on success, -1 on error.
+ */
static int
mtsymset(int fldno, long *set)
{
if (ca->ca_table == EF_BAD || ef_cadef(ca->ca_table) != symbol_ca
|| !(ca->ca_flags & NSC_BITS))
- return gripe("Field %d doesn't take symbol sets", fldno + 1);
+ return gripe("field %d doesn't take symbol sets", fldno + 1);
*set = 0;
return 0;
}
+/*
+ * Add a symbol to a symbol set for field @fldno in *@set.
+ * @sym is the name of the symbol to add.
+ * Return 1 on success, -1 on error.
+ */
static int
add2symset(int fldno, long *set, char *sym)
{
return 0;
}
+/*
+ * Read an xdump table header line from @fp.
+ * Expect header for @expected_table, unless it is EF_BAD.
+ * Recognize header for machine- and human-readable syntax, and set
+ * human accordingly.
+ * Return table type on success, -2 on EOF before header, -1 on failure.
+ */
static int
xuheader(FILE *fp, int expected_table)
{
human = ch == 'c';
res = -1;
if ((human
- ? fscanf(fp, "config%*[ \t]%63[^ \t#\n]%n", name, &res) != 1
- : fscanf(fp, "XDUMP%*[ \t]%63[^ \t#\n]%*[ \t]%*[^ \t#\n]%n",
- name, &res) != 1) || res < 0)
- return gripe("Expected xdump header");
+ ? fscanf(fp, "config%*[ \t]%63[^ \t#\n]%n", name, &res) != 1
+ : fscanf(fp, "XDUMP%*[ \t]%63[^ \t#\n]%*[ \t]%*[^ \t#\n]%n",
+ name, &res) != 1) || res < 0)
+ return gripe("expected xdump header");
type = ef_byname(name);
if (type < 0)
- return gripe("Unknown table `%s'", name);
+ return gripe("unknown table '%s'", name);
if (expected_table != EF_BAD && expected_table != type)
- return gripe("Expected table `%s', not `%s'",
+ return gripe("expected table '%s', not '%s'",
ef_nameof(expected_table), name);
- if (!ef_cadef(type) || !(ef_flags(type) & EFF_MEM)) {
+ if (!empfile[type].file
+ || !ef_cadef(type) || !(ef_flags(type) & EFF_MEM)) {
CANT_HAPPEN(expected_table != EF_BAD);
- return gripe("Table `%s' is not permitted here", name);
+ return gripe("table '%s' is not permitted here", name);
}
if (skipfs(fp) != '\n')
- return gripe("Junk after xdump header");
+ return gripe("junk after xdump header");
lineno++;
return type;
}
+/*
+ * Find fields in this xdump.
+ * If reading human-readable syntax, read a field header line from @fp.
+ * Else take fields from the table's selectors in @ca[].
+ * Set ellipsis, nflds, fldca[], fldidx[] and caflds[] accordingly.
+ * Return 0 on success, -1 on failure.
+ */
static int
-xuheader1(FILE *fp, struct castr ca[])
+xufldhdr(FILE *fp, struct castr ca[])
{
struct castr **fca;
int *fidx;
int ch, i, j, n;
+ for (i = 0; ca[i].ca_name; i++)
+ caflds[i] = 0;
+ ellipsis = 0;
+
if (human) {
while ((ch = skipfs(fp)) == '\n')
lineno++;
ungetc(ch, fp);
- ellipsis = 0;
- nflds = xuflds(fp, xufldname);
- if (nflds < 0)
+ if (xuflds(fp, xufldname) < 0)
return -1;
- nflds -= ellipsis != 0;
} else {
fca = fldca;
fidx = fldidx;
for (i = 0; ca[i].ca_name; i++) {
if ((ca[i].ca_flags & NSC_EXTRA))
continue;
- n = ca[i].ca_type != NSC_STRINGY ? ca[i].ca_len : 0;
+ n = CA_ARRAY_LEN(&ca[i]);
j = 0;
do {
*fca++ = &ca[i];
return 0;
}
+/*
+ * Read xdump footer from @fp.
+ * @ca[] contains the table's selectors.
+ * The body had @recs records.
+ * Update cafldspp[] from caflds[].
+ * Return 0 on success, -1 on failure.
+ */
static int
-xutrailer(FILE *fp, int row)
+xufooter(FILE *fp, struct castr ca[], int recs)
{
- int rows, res;
+ int res, n, i;
res = -1;
if (human) {
- if (fscanf(fp, "config%n", &res) != 0 || res < 0)
- return gripe("Malformed table footer");
+ if (fscanf(fp, "config%n", &res) != 0 || res < 0)
+ return gripe("malformed table footer");
} else {
- if (fscanf(fp, "%d", &rows) != 1)
- return gripe("Malformed table footer");
- if (row != rows)
- return gripe("Read %d rows, which doesn't match footer "
- "%d rows", row, rows);
+ if (fscanf(fp, "%d", &n) != 1)
+ return gripe("malformed table footer");
+ if (recs != n)
+ return gripe("expected footer /%d", recs);
}
if (skipfs(fp) != '\n')
- return gripe("Junk after table footer");
+ return gripe("junk after table footer");
+ if (tbl_part_done() < 0)
+ return -1;
lineno++;
+ for (i = 0; ca[i].ca_name; i++) {
+ if (cafldspp[i] < caflds[i])
+ cafldspp[i] = caflds[i];
+ }
+
return 0;
}
+/*
+ * Read an xdump table from @fp.
+ * Both machine- and human-readable xdump syntax are recognized.
+ * Expect table @expected_table, unless it is EF_BAD.
+ * Report errors to stderr.
+ * Messages assume @fp starts in the file @file at line *@plno.
+ * Update *@plno to reflect lines read from @fp.
+ * Return table type on success, -2 on EOF before header, -1 on failure.
+ */
int
xundump(FILE *fp, char *file, int *plno, int expected_table)
{
for (i = 0; ca[i].ca_name; i++) {
nca++;
if (!(ca[i].ca_flags & NSC_EXTRA))
- nf += MAX(1, ca[i].ca_type != NSC_STRINGY ? ca[i].ca_len : 0);
+ nf += MAX(1, CA_ARRAY_LEN(&ca[i]));
}
- fldca = calloc(nf, sizeof(*fldca));
- fldidx = calloc(nf, sizeof(*fldidx));
- caflds = calloc(nca, sizeof(*caflds));
- caseen = calloc(nca, sizeof(*caseen));
- cur_type = type;
-
- if (xundump2(fp, type, ca) < 0)
+ fldca = malloc(nf * sizeof(*fldca));
+ fldidx = malloc(nf * sizeof(*fldidx));
+ fldval = malloc(nf * sizeof(*fldval));
+ caflds = malloc(nca * sizeof(*caflds));
+ cafldspp = calloc(nca, sizeof(*cafldspp));
+
+ tbl_start(type);
+ if (xutail(fp, ca) < 0)
type = EF_BAD;
+ tbl_end();
- free(caseen);
+ free(cafldspp);
free(caflds);
+ free(fldval);
free(fldidx);
free(fldca);
return type;
}
+/*
+ * Read the remainder of an xdump after the table header line from @fp.
+ * @ca[] contains the table's selectors.
+ * Return 0 on success, -1 on failure.
+ */
static int
-xundump2(FILE *fp, int type, struct castr *ca)
+xutail(FILE *fp, struct castr *ca)
{
- int i;
+ int recs;
- is_partial = 0;
for (;;) {
- if (xuheader1(fp, ca) < 0)
+ if (xufldhdr(fp, ca) < 0)
+ return -1;
+ if ((recs = xubody(fp)) < 0)
return -1;
- if (xundump1(fp) < 0)
+ if (xufooter(fp, ca, recs) < 0)
return -1;
if (!ellipsis)
return 0;
- for (i = 0; ca[i].ca_name; i++)
- caseen[i] = caflds[i] != 0;
- if (xuheader(fp, type) < 0)
+ if (xuheader(fp, cur_type) < 0)
return -1;
}
}
+/*
+ * Read the body of an xdump table from @fp.
+ * Return number of rows read on success, -1 on failure.
+ */
static int
-xundump1(FILE *fp)
+xubody(FILE *fp)
{
- struct empfile *ep = &empfile[cur_type];
- int need_sentinel = !EF_IS_GAME_STATE(cur_type);
- int row, n, ch;
+ int i, ch;
- n = 0;
- for (row = 0;; ++row) {
+ for (i = 0;; ++i) {
while ((ch = skipfs(fp)) == '\n')
lineno++;
if (ch == '/')
break;
ungetc(ch, fp);
- cur_obj = NULL;
- cur_id = row;
if (xuflds(fp, xufld) < 0)
return -1;
- n = MAX(n, cur_id + 1);
- }
-
- if (CANT_HAPPEN(n > ep->fids))
- n = ep->fids;
- if (n < ep->fids) {
- if (EF_IS_GAME_STATE(cur_type) && n != ep->csize)
- /* TODO truncate file */
- gripe("Warning: should resize table %s from %d to %d, not implemented",
- ef_nameof(cur_type), ep->csize, n);
- else if (cur_type >= EF_SHIP_CHR && cur_type <= EF_NUKE_CHR)
- ep->cids = ep->fids = n;
- else
- return gripe("Table %s requires %d rows, got %d",
- ef_nameof(cur_type), ep->fids, n);
}
-
- if (need_sentinel) {
- if (CANT_HAPPEN(n >= ep->csize))
- return gripe("No space for sentinel");
- memset(ep->cache + ep->size * n, 0, ep->size);
- }
-
- if (xutrailer(fp, row) < 0)
- return -1;
-
- return 0;
+ return i;
}
projects / empserver / blobdiff