--- parser3/src/main/pa_table.C	2001/03/29 20:53:04	1.24
+++ parser3/src/main/pa_table.C	2024/09/07 15:01:38	1.74
@@ -1,79 +1,120 @@
 /** @file
 	Parser: table class.
 
-	Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
+	Copyright (c) 2001-2023 Art. Lebedev Studio (http://www.artlebedev.com)
+	Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru>
+*/
 
-	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
+#include "pa_table.h"
 
-	$Id: pa_table.C,v 1.24 2001/03/29 20:53:04 paf Exp $
-*/
+volatile const char * IDENT_PA_TABLE_C="$Id: pa_table.C,v 1.74 2024/09/07 15:01:38 moko Exp $" IDENT_PA_TABLE_H;
 
-#include <stdlib.h>
+#include "pa_exception.h"
 
-#include "pa_table.h"
-#include "pa_pool.h"
+Table::Table(columns_type acolumns, size_t initial_rows): Array<element_type>(initial_rows), fcurrent(0), fcolumns(acolumns), name2number(NULL){
+	column_names_init();
+}
+
+void Table::column_names_init(){
+	if(fcolumns){
+		name2number = new name2number_hash_class;
+		size_t number=1;
+		for(ArrayString::Iterator i(*fcolumns); i.has_next(); ) {
+			const String& name=*i.next();
+			name2number->put(name, number++);
+		}
+	}
+}
+
+static void append_row(Table& src, Table* dest) {
+	Table::element_type src_row(src[src.current()]);
+	Table::element_type row(new ArrayString(src_row->count()));
+	row->append(*src_row);
+	*dest+=row;
+}
 
-Table::Table(Pool& apool, 
-			 const String *aorigin_string,
-			 Array *acolumns, 
-			 int initial_rows) :
-	Array(apool, initial_rows),
+Table::Table(const Table& src, Action_options& options) :
+	Array<element_type>( (options.limit==ARRAY_OPTION_LIMIT_ALL || options.limit>src.count()) ?  src.count() : options.limit),
 
-	forigin_string(aorigin_string),
 	fcurrent(0),
-	fcolumns(acolumns), 
-	name2number(pool(), false) {
+	fcolumns(src.fcolumns),
+	name2number(src.name2number) {
 
-	if(fcolumns)
-		for(int i=0; i<fcolumns->size(); i++) {
-			const String& name=*fcolumns->get_string(i);
-			name2number.put(name, i+1);
-		}
+	((Table &)src).table_for_each(append_row, this, options);
 }
 
-int Table::column_name2index(const String& column_name) const {
-	if(fcolumns) { // named
-		int column_number=name2number.get_int(column_name);
-		if(column_number)
-			return column_number-1;
-		else {
-			THROW(0, 0,
-				&column_name, 
-				"column not found");
-			return 0; // unreached
-		}
-	} else { // nameless
-		char *error_pos=0;
-		int result=(int)strtol(column_name.cstr(), &error_pos, 0);
-		if(error_pos && *error_pos)
-			THROW(0, 0,
-				&column_name,
-				"invalid column number");
-		return result;
+size_t Table::max_cells() const {
+	size_t result=0;
+	for(size_t i=0; i<count(); i++){
+		element_type row=get(i);
+		if(row->count()>result)
+			result=row->count();
 	}
+	return result;
 }
 
-const String *Table::item(int column) const {
+int Table::column_name2index(const String& column_name, bool bark) const {
+	if(fcolumns) {// named
+		int result=name2number->get(column_name)-1; // -1 = column not found
+		if(bark && result<0)
+			throw Exception(PARSER_RUNTIME, &column_name, "column not found");
+		return result;
+	} else // nameless
+		return column_name.as_int();
+}
+
+const String* Table::item(size_t column) {
 	if(valid(fcurrent)) {
-		const Array& row=at(fcurrent);
-		if(column>=0 && column<row.size()) // proper index?
-			return row.get_string(column);
+		element_type row=get(fcurrent);
+		if(column<row->count()) // proper index?
+			return row->get(column);
 	}
 	return 0; // it's OK we don't have row|column, just return nothing
 }
 
-bool Table::locate(int column, const String& value) {
-	for(fcurrent=0; fcurrent<size(); fcurrent++) {
-		const String *item_value=item(column);
-		if(item_value && *item_value==value)
-			return true;
+void Table::put_item(size_t column, const String* value) {
+	if(!valid(fcurrent)) {
+		throw Exception(PARSER_RUNTIME, 0, "invalid current row");
+	}
+	element_type row=get(fcurrent);
+	while(row->count()<=column){
+	    *row+=&String::Empty;
+	}
+	row->put(column, value);
+}
+
+void Table::remove_current(){
+	if(!valid(fcurrent)) {
+		throw Exception(PARSER_RUNTIME, 0, "invalid current row");
 	}
+	remove(fcurrent);
+	if(fcurrent==count() && count()>0){
+	    fcurrent--;
+	}
+}
+
+#ifndef DOXYGEN
+struct Locate_int_string_info {
+	int column;
+	const String* value;
+};
+#endif
+bool locate_int_string(Table& self, Locate_int_string_info* info) {
+	const String *item_value=self.item(info->column);
+	return item_value && *item_value==*info->value;
+}
+
+bool Table::locate(int column, const String& value, Table::Action_options& options) {
+	Locate_int_string_info info={column, &value};
+	return table_first_that(locate_int_string, &info, options);
+}
 
-	fcurrent=0;
-	return false;
+bool Table::locate(const String& column, const String& value, Table::Action_options& options) {
+	return locate(column_name2index(column, true), value, options);
 }
 
-void Table::shift(int offset) {
-	if(size())
-		fcurrent=(fcurrent+offset+size())%size();
+void Table::offset(bool absolute, int offset) {
+	// not +lcount, but "if either operand is unsigned, the other shall be converted to unsigned" C++ rule works here
+	if(size_t lcount=count())
+		fcurrent=((absolute?0:fcurrent)+offset+lcount)%lcount;
 }