diff options
Diffstat (limited to 'navit/data/poi_geodownload/libmdb/data.c')
| -rw-r--r-- | navit/data/poi_geodownload/libmdb/data.c | 856 |
1 files changed, 0 insertions, 856 deletions
diff --git a/navit/data/poi_geodownload/libmdb/data.c b/navit/data/poi_geodownload/libmdb/data.c deleted file mode 100644 index e50e57db..00000000 --- a/navit/data/poi_geodownload/libmdb/data.c +++ /dev/null @@ -1,856 +0,0 @@ -/* MDB Tools - A library for reading MS Access database file - * Copyright (C) 2000 Brian Bruns - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#include "mdbtools.h" -#include "time.h" -#include "math.h" - -#ifdef DMALLOC -#include "dmalloc.h" -#endif - -#define OFFSET_MASK 0x1fff - -char *mdb_money_to_string(MdbHandle *mdb, int start, char *s); -static int _mdb_attempt_bind(MdbHandle *mdb, - MdbColumn *col, unsigned char isnull, int offset, int len); -static char *mdb_num_to_string(MdbHandle *mdb, int start, int datatype, int prec, int scale); -int mdb_copy_ole(MdbHandle *mdb, char *dest, int start, int size); - -static char date_fmt[64] = "%x %X"; - -void mdb_set_date_fmt(const char *fmt) -{ - date_fmt[63] = 0; - strncpy(date_fmt, fmt, 63); -} - -void mdb_bind_column(MdbTableDef *table, int col_num, void *bind_ptr) -{ -MdbColumn *col; - - /* - ** the column arrary is 0 based, so decrement to get 1 based parameter - */ - col=g_ptr_array_index(table->columns, col_num - 1); - col->bind_ptr = bind_ptr; -} -int -mdb_bind_column_by_name(MdbTableDef *table, gchar *col_name, void *bind_ptr) -{ - unsigned int i; - int col_num = -1; - MdbColumn *col; - - for (i=0;i<table->num_cols;i++) { - col=g_ptr_array_index(table->columns,i); - if (!strcmp(col->name,col_name)) { - col_num = col->col_num + 1; - mdb_bind_column(table, col_num, bind_ptr); - break; - } - } - - return col_num; -} -void mdb_bind_len(MdbTableDef *table, int col_num, int *len_ptr) -{ -MdbColumn *col; - - col=g_ptr_array_index(table->columns, col_num - 1); - col->len_ptr = len_ptr; -} - -/** - * mdb_find_pg_row - * @mdb: Database file handle - * @pg_row: Lower byte contains the row number, the upper three contain page - * @buf: Pointer for returning a pointer to the page - * @off: Pointer for returning an offset to the row - * @len: Pointer for returning the length of the row - * - * Returns: 0 on success. 1 on failure. - */ -int mdb_find_pg_row(MdbHandle *mdb, int pg_row, char **buf, int *off, int *len) -{ - unsigned int pg = pg_row >> 8; - unsigned int row = pg_row & 0xff; - - if (mdb_read_alt_pg(mdb, pg) != mdb->fmt->pg_size) - return 1; - mdb_swap_pgbuf(mdb); - *off = mdb_pg_get_int16(mdb, mdb->fmt->row_count_offset + 2 + (row*2)); - *len = mdb_find_end_of_row(mdb, row) - *off + 1; - mdb_swap_pgbuf(mdb); - *buf = mdb->alt_pg_buf; - return 0; -} - -int -mdb_find_end_of_row(MdbHandle *mdb, int row) -{ - MdbFormatConstants *fmt = mdb->fmt; - int row_end; - - /* Search the previous "row start" values for the first non-'lookupflag' one. - * If we don't find one, then the end of the page is the correct value. - */ -#if 1 - if (row==0) { - row_end = fmt->pg_size - 1; - } else { - row_end = (mdb_pg_get_int16(mdb, ((fmt->row_count_offset + 2) + (row - 1) * 2)) & OFFSET_MASK) - 1; - } - return row_end; -#else - int i, row_start; - - /* if lookupflag is not set, it's good (deleteflag is ok) */ - for (i = row - 1; i >= 0; i--) { - row_start = mdb_pg_get_int16(mdb, ((fmt->row_count_offset + 2) + i * 2)); - if (!(row_start & 0x8000)) { - break; - } - } - - if (i == -1) { - row_end = fmt->pg_size - 1; - } else { - row_end = (row_start & OFFSET_MASK) - 1; - } - return row_end; -#endif -} -int mdb_is_null(unsigned char *null_mask, int col_num) -{ -int byte_num = (col_num - 1) / 8; -int bit_num = (col_num - 1) % 8; - - if ((1 << bit_num) & null_mask[byte_num]) { - return 0; - } else { - return 1; - } -} -/* bool has to be handled specially because it uses the null bit to store its -** value*/ -static int -mdb_xfer_bound_bool(MdbHandle *mdb, MdbColumn *col, int value) -{ - - col->cur_value_len = value; - if (col->bind_ptr) { - strcpy(col->bind_ptr, value ? "0" : "1"); - } - - return 0; -} -static int mdb_xfer_bound_ole(MdbHandle *mdb, int start, MdbColumn *col, int len) -{ - int ret = 0; - if (len) { - col->cur_value_start = start; - col->cur_value_len = len; - } else { - col->cur_value_start = 0; - col->cur_value_len = 0; - } - if (col->bind_ptr || col->len_ptr) { - //ret = mdb_copy_ole(mdb, col->bind_ptr, start, len); - memcpy(col->bind_ptr, &mdb->pg_buf[start], MDB_MEMO_OVERHEAD); - } - if (col->len_ptr) { - *col->len_ptr = MDB_MEMO_OVERHEAD; - } - return ret; -} -static int mdb_xfer_bound_data(MdbHandle *mdb, int start, MdbColumn *col, int len) -{ -int ret; - //if (!strcmp("Name",col->name)) { - //printf("start %d %d\n",start, len); - //} - if (len) { - col->cur_value_start = start; - col->cur_value_len = len; - } else { - col->cur_value_start = 0; - col->cur_value_len = 0; - } - if (col->bind_ptr) { - if (!len) { - strcpy(col->bind_ptr, ""); - } else if (col->col_type == MDB_NUMERIC) { - //fprintf(stdout,"len %d size %d\n",len, col->col_size); - char *str = mdb_num_to_string(mdb, start, col->col_type, - col->col_prec, col->col_scale); - strcpy(col->bind_ptr, str); - g_free(str); - } else { - //fprintf(stdout,"len %d size %d\n",len, col->col_size); - char *str = mdb_col_to_string(mdb, mdb->pg_buf, start, - col->col_type, len); - strcpy(col->bind_ptr, str); - - } - ret = strlen(col->bind_ptr); - if (col->len_ptr) { - *col->len_ptr = ret; - } - return ret; - } - return 0; -} -int mdb_read_row(MdbTableDef *table, unsigned int row) -{ - MdbHandle *mdb = table->entry->mdb; - MdbFormatConstants *fmt = mdb->fmt; - MdbColumn *col; - unsigned int i; - int rc; - int row_start, row_end; - int delflag, lookupflag; - MdbField fields[256]; - int num_fields; - - if (table->num_rows <= row) - return 0; - - row_start = mdb_pg_get_int16(mdb, (fmt->row_count_offset + 2) + (row*2)); - row_end = mdb_find_end_of_row(mdb, row); - - delflag = lookupflag = 0; - if (row_start & 0x8000) lookupflag++; - if (row_start & 0x4000) delflag++; - row_start &= OFFSET_MASK; /* remove flags */ -#if MDB_DEBUG - fprintf(stdout,"Row %d bytes %d to %d %s %s\n", - row, row_start, row_end, - lookupflag ? "[lookup]" : "", - delflag ? "[delflag]" : ""); -#endif - - if (!table->noskip_del && delflag) { - row_end = row_start-1; - return 0; - } - - num_fields = mdb_crack_row(table, row_start, row_end, fields); - if (!mdb_test_sargs(table, fields, num_fields)) return 0; - -#if MDB_DEBUG - fprintf(stdout,"sarg test passed row %d \n", row); -#endif - -#if MDB_DEBUG - buffer_dump(mdb->pg_buf, row_start, row_end); -#endif - - /* take advantage of mdb_crack_row() to clean up binding */ - /* use num_cols instead of num_fields -- bsb 03/04/02 */ - for (i = 0; i < table->num_cols; i++) { - col = g_ptr_array_index(table->columns,fields[i].colnum); - rc = _mdb_attempt_bind(mdb, col, fields[i].is_null, - fields[i].start, fields[i].siz); - } - - return 1; -} -static int _mdb_attempt_bind(MdbHandle *mdb, - MdbColumn *col, - unsigned char isnull, - int offset, - int len) -{ - if (col->col_type == MDB_BOOL) { - mdb_xfer_bound_bool(mdb, col, isnull); - } else if (isnull) { - mdb_xfer_bound_data(mdb, 0, col, 0); - } else if (col->col_type == MDB_OLE) { - mdb_xfer_bound_ole(mdb, offset, col, len); - } else { - //if (!mdb_test_sargs(mdb, col, offset, len)) { - //return 0; - //} - mdb_xfer_bound_data(mdb, offset, col, len); - } - return 1; -} -int mdb_read_next_dpg(MdbTableDef *table) -{ - MdbCatalogEntry *entry = table->entry; - MdbHandle *mdb = entry->mdb; - int next_pg; - -#ifndef SLOW_READ - next_pg = mdb_map_find_next(mdb, table->usage_map, - table->map_sz, table->cur_phys_pg); - - if (next_pg >= 0) { - if (mdb_read_pg(mdb, next_pg)) { - table->cur_phys_pg = next_pg; - return table->cur_phys_pg; - } else { - return 0; - } - } - fprintf(stderr, "Warning: defaulting to brute force read\n"); -#endif - /* can't do a fast read, go back to the old way */ - do { - if (!mdb_read_pg(mdb, table->cur_phys_pg++)) - return 0; - } while (mdb->pg_buf[0]!=0x01 || mdb_pg_get_int32(mdb, 4)!=entry->table_pg); - /* fprintf(stderr,"returning new page %ld\n", table->cur_phys_pg); */ - return table->cur_phys_pg; -} -int mdb_rewind_table(MdbTableDef *table) -{ - table->cur_pg_num=0; - table->cur_phys_pg=0; - table->cur_row=0; - - return 0; -} -int -mdb_fetch_row(MdbTableDef *table) -{ - MdbHandle *mdb = table->entry->mdb; - MdbFormatConstants *fmt = mdb->fmt; - unsigned int rows; - int rc; - guint32 pg; - - if (table->num_rows==0) - return 0; - - /* initialize */ - if (!table->cur_pg_num) { - table->cur_pg_num=1; - table->cur_row=0; - if ((!table->is_temp_table)&&(table->strategy!=MDB_INDEX_SCAN)) - if (!mdb_read_next_dpg(table)) return 0; - } - - do { - if (table->is_temp_table) { - GPtrArray *pages = table->temp_table_pages; - rows = mdb_get_int16( - g_ptr_array_index(pages, table->cur_pg_num-1), - fmt->row_count_offset); - if (table->cur_row >= rows) { - table->cur_row = 0; - table->cur_pg_num++; - if (table->cur_pg_num > pages->len) - return 0; - } - memcpy(mdb->pg_buf, - g_ptr_array_index(pages, table->cur_pg_num-1), - fmt->pg_size); - } else if (table->strategy==MDB_INDEX_SCAN) { - - if (!mdb_index_find_next(table->mdbidx, table->scan_idx, table->chain, &pg, (guint16 *) &(table->cur_row))) { - mdb_index_scan_free(table); - return 0; - } - mdb_read_pg(mdb, pg); - } else { - rows = mdb_pg_get_int16(mdb,fmt->row_count_offset); - - /* if at end of page, find a new page */ - if (table->cur_row >= rows) { - table->cur_row=0; - - if (!mdb_read_next_dpg(table)) { - return 0; - } - } - } - - /* printf("page %d row %d\n",table->cur_phys_pg, table->cur_row); */ - rc = mdb_read_row(table, table->cur_row); - table->cur_row++; - } while (!rc); - - return 1; -} -void mdb_data_dump(MdbTableDef *table) -{ - unsigned int i; - char *bound_values[MDB_MAX_COLS]; - - for (i=0;i<table->num_cols;i++) { - bound_values[i] = (char *) g_malloc(256); - mdb_bind_column(table, i+1, bound_values[i]); - } - mdb_rewind_table(table); - while (mdb_fetch_row(table)) { - for (i=0;i<table->num_cols;i++) { - fprintf(stdout, "column %d is %s\n", i+1, bound_values[i]); - } - } - for (i=0;i<table->num_cols;i++) { - g_free(bound_values[i]); - } -} - -int mdb_is_fixed_col(MdbColumn *col) -{ - return col->is_fixed; -} -#if 0 -static char *mdb_data_to_hex(MdbHandle *mdb, char *text, int start, int size) -{ -int i; - - for (i=start; i<start+size; i++) { - sprintf(&text[(i-start)*2],"%02x", mdb->pg_buf[i]); - } - text[(i-start)*2]='\0'; - - return text; -} -#endif -int -mdb_ole_read_next(MdbHandle *mdb, MdbColumn *col, void *ole_ptr) -{ - guint16 ole_len; - guint16 ole_flags; - char *buf; - int pg_row, row_start; - int len; - - ole_len = mdb_get_int16(ole_ptr, 0); - ole_flags = mdb_get_int16(ole_ptr, 2); - - if (ole_flags == 0x8000) { - /* inline fields don't have a next */ - return 0; - } else if (ole_flags == 0x4000) { - /* 0x4000 flagged ole's are contained on one page and thus - * should be handled entirely with mdb_ole_read() */ - return 0; - } else if (ole_flags == 0x0000) { - pg_row = (col->cur_blob_pg << 8) & col->cur_blob_row; - if (mdb_find_pg_row(mdb, pg_row, &buf, &row_start, &len)) { - return 0; - } - if (col->bind_ptr) - memcpy(col->bind_ptr, buf + row_start, len); - pg_row = mdb_get_int32(buf, row_start); - col->cur_blob_pg = pg_row >> 8; - col->cur_blob_row = pg_row & 0xff; - - return len; - } - return 0; -} -int -mdb_ole_read(MdbHandle *mdb, MdbColumn *col, void *ole_ptr, int chunk_size) -{ - guint16 ole_len; - guint16 ole_flags; - char *buf; - int pg_row, row_start; - int len; - - ole_len = mdb_get_int16(ole_ptr, 0); - ole_flags = mdb_get_int16(ole_ptr, 2); - mdb_debug(MDB_DEBUG_OLE,"ole len = %d ole flags = %08x", - ole_len, ole_flags); - - col->chunk_size = chunk_size; - - if (ole_flags == 0x8000) { - /* inline ole field, if we can satisfy it, then do it */ - len = col->cur_value_len - MDB_MEMO_OVERHEAD; - if (chunk_size >= len) { - if (col->bind_ptr) - memcpy(col->bind_ptr, - &mdb->pg_buf[col->cur_value_start + - MDB_MEMO_OVERHEAD], - len); - return len; - } else { - return 0; - } - } else if (ole_flags == 0x4000) { - pg_row = mdb_get_int32(ole_ptr, 4); - col->cur_blob_pg = pg_row >> 8; - col->cur_blob_row = pg_row & 0xff; - mdb_debug(MDB_DEBUG_OLE,"ole row = %d ole pg = %ld", - col->cur_blob_row, col->cur_blob_pg); - - if (mdb_find_pg_row(mdb, pg_row, &buf, &row_start, &len)) { - return 0; - } - mdb_debug(MDB_DEBUG_OLE,"start %d len %d", row_start, len); - - if (col->bind_ptr) { - memcpy(col->bind_ptr, buf + row_start, len); - if (mdb_get_option(MDB_DEBUG_OLE)) - buffer_dump(col->bind_ptr, 0, 16); - } - return len; - } else if (ole_flags == 0x0000) { - pg_row = mdb_get_int32(ole_ptr, 4); - col->cur_blob_pg = pg_row >> 8; - col->cur_blob_row = pg_row & 0xff; - - if (mdb_find_pg_row(mdb, pg_row, &buf, &row_start, &len)) { - return 0; - } - - if (col->bind_ptr) - memcpy(col->bind_ptr, buf + row_start, len); - - pg_row = mdb_get_int32(buf, row_start); - col->cur_blob_pg = pg_row >> 8; - col->cur_blob_row = pg_row & 0xff; - - return len; - } else { - fprintf(stderr,"Unhandled ole field flags = %04x\n", ole_flags); - return 0; - } -} -int mdb_copy_ole(MdbHandle *mdb, char *dest, int start, int size) -{ - guint16 ole_len; - guint16 ole_flags; - guint32 row_start, pg_row; - guint32 len; - char *buf; - - if (size<MDB_MEMO_OVERHEAD) { - return 0; - } - - /* The 16 bit integer at offset 0 is the length of the memo field. - * The 32 bit integer at offset 4 contains page and row information. - */ - ole_len = mdb_pg_get_int16(mdb, start); - ole_flags = mdb_pg_get_int16(mdb, start+2); - - if (ole_flags == 0x8000) { - len = size - MDB_MEMO_OVERHEAD; - /* inline ole field */ - if (dest) memcpy(dest, &mdb->pg_buf[start + MDB_MEMO_OVERHEAD], - size - MDB_MEMO_OVERHEAD); - return len; - } else if (ole_flags == 0x4000) { - pg_row = mdb_get_int32(mdb->pg_buf, start+4); - mdb_debug(MDB_DEBUG_OLE,"Reading LVAL page %06x", pg_row >> 8); - - if (mdb_find_pg_row(mdb, pg_row, &buf, &row_start, &len)) { - return 0; - } - mdb_debug(MDB_DEBUG_OLE,"row num %d start %d len %d", - pg_row & 0xff, row_start, len); - - if (dest) - memcpy(dest, buf + row_start, len); - return len; - } else if (ole_flags == 0x0000) { - int cur = 0; - pg_row = mdb_get_int32(mdb->pg_buf, start+4); - mdb_debug(MDB_DEBUG_OLE,"Reading LVAL page %06x", pg_row >> 8); - do { - if (mdb_find_pg_row(mdb,pg_row,&buf,&row_start,&len)) { - return 0; - } - - mdb_debug(MDB_DEBUG_OLE,"row num %d start %d len %d", - pg_row & 0xff, row_start, len); - - if (dest) - memcpy(dest+cur, buf + row_start + 4, len - 4); - cur += len - 4; - - /* find next lval page */ - pg_row = mdb_get_int32(buf, row_start); - } while ((pg_row >> 8)); - return cur; - } else { - fprintf(stderr,"Unhandled ole field flags = %04x\n", ole_flags); - return 0; - } -} -static char *mdb_memo_to_string(MdbHandle *mdb, int start, int size) -{ - guint16 memo_len; - static char text[MDB_BIND_SIZE]; - guint16 memo_flags; - guint32 row_start, pg_row; - guint32 len; - char *buf; - - if (size<MDB_MEMO_OVERHEAD) { - return ""; - } - -#if MDB_DEBUG - buffer_dump(mdb->pg_buf, start, start + 12); -#endif - - /* The 16 bit integer at offset 0 is the length of the memo field. - * The 32 bit integer at offset 4 contains page and row information. - */ - memo_len = mdb_pg_get_int16(mdb, start); - memo_flags = mdb_pg_get_int16(mdb, start+2); - - if (memo_flags & 0x8000) { - /* inline memo field */ - strncpy(text, &mdb->pg_buf[start + MDB_MEMO_OVERHEAD], - size - MDB_MEMO_OVERHEAD); - text[size - MDB_MEMO_OVERHEAD]='\0'; - return text; - } else if (memo_flags & 0x4000) { - pg_row = mdb_get_int32(mdb->pg_buf, start+4); -#if MDB_DEBUG - printf("Reading LVAL page %06x\n", pg_row >> 8); -#endif - if (mdb_find_pg_row(mdb, pg_row, &buf, &row_start, &len)) { - return ""; - } -#if MDB_DEBUG - printf("row num %d start %d len %d\n", - pg_row & 0xff, row_start, len); - buffer_dump(mdb->pg_buf, row_start, row_start + len); -#endif - if (IS_JET3(mdb)) { - strncpy(text, buf + row_start, len); - text[len]='\0'; - } else { - mdb_unicode2ascii(mdb, buf, row_start, len, text); - } - return text; - } else { /* if (memo_flags == 0x0000) { */ - pg_row = mdb_get_int32(mdb->pg_buf, start+4); -#if MDB_DEBUG - printf("Reading LVAL page %06x\n", pg_row >> 8); -#endif - text[0]='\0'; - do { - if (mdb_find_pg_row(mdb,pg_row,&buf,&row_start,&len)) { - return ""; - } -#if MDB_DEBUG - printf("row num %d start %d len %d\n", - pg_row & 0xff, row_start, len); -#endif - strncat(text, buf + row_start + 4, - strlen(text) + len - 4 > MDB_BIND_SIZE ? - MDB_BIND_SIZE - strlen(text) : len - 4); - - /* find next lval page */ - pg_row = mdb_get_int32(mdb->pg_buf, row_start); - } while ((pg_row >> 8)); - return text; -/* - } else { - fprintf(stderr,"Unhandled memo field flags = %04x\n", memo_flags); - return ""; -*/ - } -} -static char * -mdb_num_to_string(MdbHandle *mdb, int start, int datatype, int prec, int scale) -{ - char *text; - gint32 l; - - memcpy(&l, mdb->pg_buf+start+13, 4); - - text = (char *) g_malloc(prec+2); - sprintf(text, "%0*" G_GINT32_FORMAT, prec, GINT32_FROM_LE(l)); - if (scale) { - memmove(text+prec-scale, text+prec-scale+1, scale+1); - text[prec-scale] = '.'; - } - return text; -} - -static int trim_trailing_zeros(char * buff, int n) -{ - char * p = buff + n - 1; - - while (p >= buff && *p == '0') - *p-- = '\0'; - - if (*p == '.') - *p = '\0'; - - return 0; -} - -char *mdb_col_to_string(MdbHandle *mdb, unsigned char *buf, int start, int datatype, int size) -{ - /* FIX ME -- not thread safe */ - static char text[MDB_BIND_SIZE]; - time_t t; - int n; - float tf; - double td; - - switch (datatype) { - case MDB_BOOL: - /* shouldn't happen. bools are handled specially - ** by mdb_xfer_bound_bool() */ - break; - case MDB_BYTE: - sprintf(text,"%d",mdb_get_byte(buf, start)); - return text; - break; - case MDB_INT: - sprintf(text,"%ld",(long)mdb_get_int16(buf, start)); - return text; - break; - case MDB_LONGINT: - sprintf(text,"%ld",mdb_get_int32(buf, start)); - return text; - break; - case MDB_FLOAT: - tf = mdb_get_single(mdb->pg_buf, start); - n = sprintf(text,"%.*f",FLT_DIG - (int)ceil(log10(tf)), tf); - trim_trailing_zeros(text, n); - return text; - break; - case MDB_DOUBLE: - td = mdb_get_double(mdb->pg_buf, start); - n = sprintf(text,"%.*f",DBL_DIG - (int)ceil(log10(td)), td); - trim_trailing_zeros(text, n); - return text; - break; - case MDB_TEXT: - if (size<0) { - return ""; - } - if (IS_JET4(mdb)) { -/* - int i; - for (i=0;i<size;i++) { - fprintf(stdout, "%c %02x ", mdb->pg_buf[start+i], mdb->pg_buf[start+i]); - } - fprintf(stdout, "\n"); -*/ - mdb_unicode2ascii(mdb, mdb->pg_buf, start, size, text); - } else { - strncpy(text, &buf[start], size); - text[size]='\0'; - } - return text; - break; - case MDB_SDATETIME: - td = mdb_get_double(mdb->pg_buf, start); - if (td > 1) { - t = (long int)((td - 25569.0) * 86400.0); - } else { - t = (long int)(td * 86400.0); - } - strftime(text, MDB_BIND_SIZE, date_fmt, (struct tm*)gmtime(&t)); - return text; - - break; - case MDB_MEMO: - return mdb_memo_to_string(mdb, start, size); - break; - case MDB_MONEY: - mdb_money_to_string(mdb, start, text); - return text; - case MDB_NUMERIC: - break; - default: - return ""; - break; - } - return NULL; -} -int mdb_col_disp_size(MdbColumn *col) -{ - switch (col->col_type) { - case MDB_BOOL: - return 1; - break; - case MDB_BYTE: - return 4; - break; - case MDB_INT: - return 6; - break; - case MDB_LONGINT: - return 11; - break; - case MDB_FLOAT: - return 10; - break; - case MDB_DOUBLE: - return 10; - break; - case MDB_TEXT: - return col->col_size; - break; - case MDB_SDATETIME: - return 20; - break; - case MDB_MEMO: - return 255; - break; - case MDB_MONEY: - return 21; - break; - } - return 0; -} -int mdb_col_fixed_size(MdbColumn *col) -{ - switch (col->col_type) { - case MDB_BOOL: - return 1; - break; - case MDB_BYTE: - return -1; - break; - case MDB_INT: - return 2; - break; - case MDB_LONGINT: - return 4; - break; - case MDB_FLOAT: - return 4; - break; - case MDB_DOUBLE: - return 8; - break; - case MDB_TEXT: - return -1; - break; - case MDB_SDATETIME: - return 4; - break; - case MDB_MEMO: - return -1; - break; - case MDB_MONEY: - return 8; - break; - } - return 0; -} |