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| version 1.53, 2003/09/25 09:15:02 | version 1.76, 2024/11/17 14:04:28 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: table class decl. | Parser: table class decl. |
| Copyright (c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2024 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <paf@design.ru> |
| */ | */ |
| #ifndef PA_TABLE_H | #ifndef PA_TABLE_H |
| #define PA_TABLE_H | #define PA_TABLE_H |
| static const char* IDENT_TABLE_H="$Date$"; | #define IDENT_PA_TABLE_H "$Id$" |
| #include "pa_types.h" | #include "pa_types.h" |
| #include "pa_hash.h" | #include "pa_hash.h" |
| #include "pa_string.h" | #include "pa_string.h" |
| class Temp_current; | |
| /** | /** |
| VTable backend. | VTable backend. |
| Line 32 class Table: public Array<ArrayString*> | Line 34 class Table: public Array<ArrayString*> |
| public: | public: |
| typedef ArrayString* columns_type; | typedef ArrayString* columns_type; |
| Table( | Table(columns_type acolumns, size_t initial_rows=3); |
| columns_type acolumns, | |
| size_t initial_rows=3); | |
| Table(const Table& src, Action_options& options); | Table(const Table& src, Action_options& options); |
| /// gets column names | /// gets column names |
| columns_type columns() { return fcolumns; } | columns_type columns() { return fcolumns; } |
| /// moves @a current pointer | /// moves @a current pointer, can be out of range when restoring current in modified table |
| void set_current(size_t acurrent) { | void set_current(size_t acurrent) { |
| assert(acurrent==0 || acurrent<count()); | fcurrent=acurrent<count() ? acurrent : count()>0 ? count()-1 : 0; |
| fcurrent=acurrent; | |
| } | } |
| /// @return current pointer | /// @return current pointer |
| size_t current() const { return fcurrent; } | size_t current() const { return fcurrent; } |
| void offset(bool absolute, int offset); | void offset(bool absolute, int offset); |
| /** @return column index from @a column_name. '<0' if no such column | /// @return checks all rows to find maximum cells number |
| size_t max_cells() const; | |
| /** @return column index from @a column_name. '<0' if no such column | |
| if no such - 'bark' | if no such - 'bark' |
| */ | */ |
| int column_name2index(const String& column, bool bark) const; | int column_name2index(const String& column, bool bark) const; |
| void column_names_init(); | |
| /// @return item from @a column | /// @return item from @a column |
| const String* item(size_t column); | const String* item(size_t column); |
| /// sets @a column value | |
| void put_item(size_t column, const String*); | |
| /// removes current row | |
| void remove_current(); | |
| /// @return item from @a column. '0' if no such column | /// @return item from @a column. '0' if no such column |
| const String* item(const String& column) { | const String* item(const String& column) { |
| int index=column_name2index(column, false); | int index=column_name2index(column, false); |
| Line 72 public: | Line 82 public: |
| if(!o.adjust(count())) | if(!o.adjust(count())) |
| return; | return; |
| size_t saved_current=current(); | Temp_current tc(*this); |
| size_t row=o.offset; | size_t row=o.offset; |
| if(o.reverse) { // reverse | if(o.reverse) { // reverse |
| for(size_t to=row-o.limit; row>=to; --row) { | for(size_t i=0; i<o.limit; i++) { |
| set_current(row); | set_current(row-i); |
| func(*this, info); | func(*this, info); |
| } | } |
| } else { // forward | } else { // forward |
| Line 85 public: | Line 95 public: |
| func(*this, info); | func(*this, info); |
| } | } |
| } | } |
| set_current(saved_current); | |
| } | } |
| template<typename I> | template<typename I> |
| bool table_first_that(bool (*func)(Table& self, I* info), void* info, Action_options& o) { | bool table_first_that(bool (*func)(Table& self, I info), I info, Action_options& o) { |
| if(!o.adjust(count())) | if(!o.adjust(count())) |
| return false; | return false; |
| size_t saved_current=current(); | size_t saved_current=current(); |
| size_t row=o.offset; | size_t row=o.offset; |
| if(o.reverse) { // reverse | if(o.reverse) { // reverse |
| for(size_t to=row-o.limit; row>=to; --row) { | for(size_t i=0; i<o.limit; i++) { |
| set_current(row); | set_current(row-i); |
| if(func(*this, info)) | if(func(*this, info)) |
| return true; | return true; |
| Line 110 public: | Line 119 public: |
| return true; | return true; |
| } | } |
| } | } |
| set_current(saved_current); | |
| set_current(saved_current); | |
| return false; | return false; |
| } | } |
| bool locate(int column, const String& value, Action_options& options); | bool locate(int column, const String& value, Action_options& options); |
| bool locate(const String& column, const String& value, Action_options& options); | bool locate(const String& column, const String& value, Action_options& options); |
| Line 128 private: | Line 136 private: |
| columns_type fcolumns; | columns_type fcolumns; |
| /// column name->number lookup table | /// column name->number lookup table |
| typedef Hash<const String::Body, int> name2number_hash_class; | typedef HashString<int> name2number_hash_class; |
| name2number_hash_class* name2number; | name2number_hash_class* name2number; |
| /// is that @c index falid? | /// is that @c index falid? |
| bool valid(size_t index) const { return index>=0 && index<count(); } | bool valid(size_t index) const { return index<count(); } |
| }; | }; |
| /// Auto-object that temporarily saves and restores current | |
| class Temp_current { | |
| Table& ftable; | |
| size_t fcurrent; | |
| public: | |
| Temp_current(Table& atable) : ftable(atable), fcurrent(atable.current()){} | |
| ~Temp_current(){ | |
| ftable.set_current(fcurrent); | |
| } | |
| }; | |
| #endif | #endif |