Annotation of parser3/src/main/pa_table.C, revision 1.53.2.10.2.6
1.14 paf 1: /** @file
1.15 paf 2: Parser: table class.
3:
1.53.2.8 paf 4: Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com)
1.44 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.48 paf 6: */
1.15 paf 7:
1.53.2.10.2.6! (paf 8:: static const char* IDENT_TABLE_C="$Date: 2003/04/11 15:00:05 $";
1.2 paf 9:
1.1 paf 10: #include "pa_table.h"
1.53.2.10.2.1 (paf 11::
1.25 paf 12: #include "pa_exception.h"
1.1 paf 13:
1.53.2.10.2.6! (paf 14:: Table::Table(columns_type acolumns, size_t initial_rows):
1.53.2.1 paf 15: Array<element_type>(initial_rows),
1.13 paf 16:
1.5 paf 17: fcurrent(0),
18: fcolumns(acolumns),
1.53.2.10.2.2 (paf 19:: name2number(new name2number_hash_class) {
1.1 paf 20:
1.53.2.10.2.3 (paf 21:: if(fcolumns) {
22:: size_t fcolumns_count=fcolumns->count();
1.53.2.10.2.5 (paf 23:: size_t number=1;
24:: for(Array_iterator<const String*> i(*fcolumns); i.has_next(); ) {
25:: const String& name=*i.next();
26:: name2number->put(name, number++);
1.1 paf 27: }
1.53.2.10.2.3 (paf 28:: }
1.42 paf 29: }
30:
1.53.2.10.2.6! (paf 31:: Table::Table(const Table& src, Action_options& options) :
! 32:: Array<element_type>(options.limit==ARRAY_OPTION_LIMIT_ALL?0:options.limit/*may be more than needed, no harm done*/),
1.42 paf 33:
1.51 paf 34: fcurrent(0),
1.53.2.1 paf 35: fcolumns(src.fcolumns),
36: name2number(src.name2number) {
1.42 paf 37:
1.53.2.10.2.6! (paf 38:: append(src, options.offset, options.limit, options.reverse);
1.2 paf 39: }
40:
1.53.2.10.2.1 (paf 41:: int Table::column_name2index(const String& column_name, bool bark) const {
1.53.2.10.2.2 (paf 42:: if(fcolumns) {// named
43:: int result=name2number->get(column_name)-1; // -1 = column not found
1.29 paf 44: if(bark && result<0)
1.45 paf 45: throw Exception("parser.runtime",
1.53.2.10.2.2 (paf 46:: &column_name,
1.29 paf 47: "column not found");
48: return result;
1.53.2.2 paf 49: } else // nameless
1.53.2.10.2.2 (paf 50:: return column_name.as_int();
1.21 paf 51: }
52:
1.53.2.10.2.3 (paf 53:: const String* Table::item(size_t column) {
1.21 paf 54: if(valid(fcurrent)) {
1.53.2.6 paf 55: element_type row=get(fcurrent);
1.53.2.2 paf 56: if(column>=0 && column<row->count()) // proper index?
1.53.2.10.2.4 (paf 57:: return row->get(column);
1.21 paf 58: }
1.53.2.10.2.1 (paf 59:: return 0; // it's OK we don't have row|column, just return nothing
1.21 paf 60: }
61:
1.53.2.10.2.6! (paf 62:: void Table::set_current(size_t acurrent) {
! 63:: if(acurrent>count())
! 64:: throw Exception(0,
! 65:: 0,
! 66:: "table row (%d) > table size (%d)", acurrent, count());
! 67:: fcurrent=acurrent;
! 68:: }
! 69::
! 70:: #ifndef DOXYGEN
! 71:: struct Locate_int_string_info {
! 72:: int column;
! 73:: const String* value;
! 74:: };
! 75:: #endif
! 76:: bool locate_int_string(Table& self, void* ainfo) {
! 77:: Locate_int_string_info& info=*static_cast<Locate_int_string_info*>(ainfo);
! 78::
! 79:: const String *item_value=self.item(info.column);
! 80:: return item_value && *item_value==*info.value;
! 81:: }
1.2 paf 82:
1.53.2.10.2.6! (paf 83:: bool Table::locate(int column, const String& value,
! 84:: Table::Action_options& options) {
! 85:: Locate_int_string_info info={column, &value};
! 86:: return locate(locate_int_string, &info, options);
1.28 paf 87: }
88:
1.53.2.10.2.6! (paf 89:: bool Table::locate(const String& column, const String& value,
! 90:: Table::Action_options& options) {
! 91:: return locate(column_name2index(column, true), value, options);
1.22 paf 92: }
93:
1.41 paf 94: void Table::offset(bool absolute, int offset) {
1.53.2.10.2.3 (paf 95:: if(size_t lcount=count())
96:: fcurrent=((absolute?0:fcurrent)+offset+lcount)%lcount;
1.1 paf 97: }
E-mail: