|
|
| version 1.49, 2002/08/01 11:41:19 | version 1.53.2.7, 2003/01/31 12:10:48 |
|---|---|
| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: table class. | Parser: table class. |
| Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001, 2003 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ | */ |
| static const char* IDENT_TABLE_C="$Date$"; | static const char* IDENT_TABLE_C="$Date$"; |
| //#include <stdlib.h> | |
| #include "pa_table.h" | #include "pa_table.h" |
| #include "pa_pool.h" | #include "pa_pool.h" |
| #include "pa_exception.h" | #include "pa_exception.h" |
| Table::Table(Pool& apool, | Table::Table( |
| const String *aorigin_string, | StringPtr aorigin_string, |
| const Array *acolumns, | columns_type acolumns, |
| int initial_rows) : | int initial_rows): |
| Array(apool, initial_rows), | Array<element_type>(initial_rows), |
| forigin_string(aorigin_string), | forigin_string(aorigin_string), |
| fcurrent(0), | fcurrent(0), |
| fcolumns(acolumns), | fcolumns(acolumns), |
| name2number(*NEW Hash(pool())) { | name2number(object_ptr<name2number_hash_class>(new name2number_hash_class)) { |
| if(fcolumns) | if(fcolumns.get()) |
| for(int i=0; i<fcolumns->size(); i++) { | for(int i=0; i<fcolumns->count(); i++) { |
| const String& name=*fcolumns->get_string(i); | const String& name=*fcolumns->get(i).get(); |
| name2number.put(name, i+1); | name2number->put(name, i+1); |
| } | } |
| } | } |
| Table::Table(const Table& source) : | Table::Table(const Table& src, int offset, int limit) : |
| Array(source), | Array<element_type>(limit/*may be more than needed, no harm done*/), |
| forigin_string(source.forigin_string), | |
| fcurrent(source.fcurrent), | |
| fcolumns(source.fcolumns), | |
| name2number(source.name2number) { | |
| } | |
| Table::Table(Pool& apool, const Table& source, int offset) : | |
| Array(apool), | |
| forigin_string(source.forigin_string), | forigin_string(src.forigin_string), |
| fcurrent(source.fcurrent), | fcurrent(0), |
| fcolumns(source.fcolumns), | fcolumns(src.fcolumns), |
| name2number(source.name2number) { | name2number(src.name2number) { |
| append_array(source, offset); | append(src, offset, limit); |
| } | } |
| int Table::column_name2index(const String& column_name, bool bark) const { | int Table::column_name2index(StringPtr column_name, bool bark) const { |
| if(fcolumns) {// named | if(fcolumns.get()) {// named |
| int result=name2number.get_int(column_name)-1; // -1 = column not found | int result=name2number->get(*column_name.get())-1; // -1 = column not found |
| if(bark && result<0) | if(bark && result<0) |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| &column_name, | column_name, |
| "column not found"); | "column not found"); |
| return result; | return result; |
| } else { // nameless | } else // nameless |
| char *error_pos; | return column_name->as_int(); |
| const char *cstr=column_name.cstr(); | |
| int result=(int)strtol(cstr, &error_pos, 0); | |
| if(*error_pos/*not EOS*/) { | |
| result=-1; | |
| if(bark) | |
| throw Exception("parser.runtime", | |
| &column_name, | |
| "invalid column number"); | |
| } | |
| return result; | |
| } | |
| } | } |
| const String *Table::item(int column) const { | StringPtr Table::item(int column) { |
| if(valid(fcurrent)) { | if(valid(fcurrent)) { |
| const Array& row=at(fcurrent); | element_type row=get(fcurrent); |
| if(column>=0 && column<row.size()) // proper index? | if(column>=0 && column<row->count()) // proper index? |
| return row.get_string(column); | return row->get(column); |
| } | } |
| return 0; // it's OK we don't have row|column, just return nothing | return 0; // it's OK we don't have row|column, just return nothing |
| } | } |
| bool Table::locate(int column, const String& value) { | bool Table::locate(int column, StringPtr value) { |
| int scurrent=fcurrent; | int scurrent=fcurrent; |
| for(fcurrent=0; fcurrent<size(); fcurrent++) { | for(fcurrent=0; fcurrent<count(); fcurrent++) { |
| const String *item_value=item(column); | StringPtr item_value=item(column); |
| if(item_value && *item_value==value) | if(item_value.get() == value.get()) |
| return true; | return true; |
| } | } |
| Line 96 bool Table::locate(int column, const Str | Line 73 bool Table::locate(int column, const Str |
| return false; | return false; |
| } | } |
| bool Table::locate(const String& column, const String& value) { | bool Table::locate(StringPtr column, StringPtr value) { |
| return locate(column_name2index(column, true), value); | return locate(column_name2index(column, true), value); |
| } | } |
| void Table::offset(bool absolute, int offset) { | void Table::offset(bool absolute, int offset) { |
| if(size()) | if(count()) |
| fcurrent=((absolute?0:fcurrent)+offset+size())%size(); | fcurrent=((absolute?0:fcurrent)+offset+count())%count(); |
| } | } |