--- parser3/src/classes/table.C 2004/07/14 08:36:40 1.205 +++ parser3/src/classes/table.C 2007/04/23 10:30:10 1.226 @@ -1,11 +1,14 @@ /** @file Parser: @b table parser class. - Copyright (c) 2001-2004 ArtLebedev Group (http://www.artlebedev.com) + Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) Author: Alexandr Petrosian (http://paf.design.ru) */ -static const char * const IDENT_TABLE_C="$Date: 2004/07/14 08:36:40 $"; +static const char * const IDENT_TABLE_C="$Date: 2007/04/23 10:30:10 $"; + +#include +using namespace std; #include "classes.h" #include "pa_vmethod_frame.h" @@ -21,7 +24,7 @@ static const char * const IDENT_TABLE_C= class MTable: public Methoded { public: // VStateless_class - Value* create_new_value(Pool&) { return new VTable(); } + Value* create_new_value(Pool&, HashStringValue&) { return new VTable(); } public: MTable(); @@ -34,11 +37,13 @@ public: // Methoded DECLARE_CLASS_VAR(table, new MTable, 0); +// externs + +extern String cycle_data_name; + // defines for globals #define SQL_BIND_NAME "bind" -#define SQL_LIMIT_NAME "limit" -#define SQL_OFFSET_NAME "offset" #define SQL_DEFAULT_NAME "default" #define SQL_DISTINCT_NAME "distinct" #define TABLE_REVERSE_NAME "reverse" @@ -46,18 +51,12 @@ DECLARE_CLASS_VAR(table, new MTable, 0); // globals String sql_bind_name(SQL_BIND_NAME); -String sql_limit_name(SQL_LIMIT_NAME); -String sql_offset_name(SQL_OFFSET_NAME); +String sql_limit_name(PA_SQL_LIMIT_NAME); +String sql_offset_name(PA_SQL_OFFSET_NAME); String sql_default_name(SQL_DEFAULT_NAME); String sql_distinct_name(SQL_DISTINCT_NAME); String table_reverse_name(TABLE_REVERSE_NAME); -// local defines - -#define COLUMN_SEPARATOR_NAME "separator" -#define COLUMN_ENCLOSER_NAME "encloser" - - // methods static Table::Action_options get_action_options(Request& r, MethodParams& params, @@ -73,6 +72,7 @@ static Table::Action_options get_action_ ] but there is ^table.locate[name;value] + ...if(voptions.is_defined() && !voptions.is_string())) if(maybe_options.is_string()) { // allow empty options result.defined=true; return result; @@ -94,7 +94,7 @@ static Table::Action_options get_action_ if(soffset == "cur") result.offset=source.current(); else - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, &soffset, "must be 'cur' string or expression"); } else @@ -112,7 +112,7 @@ static Table::Action_options get_action_ } if(valid_options!=options->count()) - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, "called with invalid option"); @@ -122,7 +122,7 @@ static void check_option_param(bool opti MethodParams& params, size_t next_param_index, const char *msg) { if(next_param_index+(options_defined?1:0) != params.count()) - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, "%s", msg); } @@ -146,6 +146,11 @@ static void _create(Request& r, MethodPa size_t raw_pos_after=0; Table::columns_type columns; if(params.count()==2) { + const String& snameless=params.as_string(0, "called with two params, first param may only be string 'nameless'"); + if(snameless!="nameless") + throw Exception(PARSER_RUNTIME, + &snameless, + "table::create called with two params, first param may only be 'nameless'"); columns=Table::columns_type(0); // nameless } else { columns=Table::columns_type(new ArrayString); @@ -263,33 +268,34 @@ static void skip_empty_and_comment_lines } struct TableSeparators { - char column; - char encloser; - const String* sencloser; - - TableSeparators() { - column='\t'; - encloser=0; - } - void load( HashStringValue& options ) { - if(Value* vseparator=options.get(COLUMN_SEPARATOR_NAME)) { - options.remove(COLUMN_SEPARATOR_NAME); - const String& sseparator=vseparator->as_string(); - if(sseparator.length()!=1) - throw Exception("parser.runtime", - &sseparator, + char column; const String* scolumn; + char encloser; const String* sencloser; + + TableSeparators(): + column('\t'), scolumn(new String("\t", false)), + encloser(0), sencloser(0) + {} + int load( HashStringValue& options ) { + int result=0; + if(Value* vseparator=options.get(PA_COLUMN_SEPARATOR_NAME)) { + scolumn=&vseparator->as_string(); + if(scolumn->length()!=1) + throw Exception(PARSER_RUNTIME, + scolumn, "separator must be one character long"); - column=sseparator.first_char(); + column=scolumn->first_char(); + result++; } - if(Value* vencloser=options.get(COLUMN_ENCLOSER_NAME)) { - options.remove(COLUMN_ENCLOSER_NAME); + if(Value* vencloser=options.get(PA_COLUMN_ENCLOSER_NAME)) { sencloser=&vencloser->as_string(); if(sencloser->length()!=1) - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, sencloser, "encloser must be one character long"); encloser=sencloser->first_char(); + result++; } + return result; } }; @@ -333,9 +339,10 @@ static void _load(Request& r, MethodPara } Table& table=*new Table(columns); + int columns_count=columns? columns->count(): 0; // parse cells - Table::element_type row(new ArrayString); + Table::element_type row(new ArrayString(columns_count)); skip_empty_and_comment_lines(&data); while( lsplit_result sr=lsplit(&data, separators.column, '\n', separators.encloser) ) { if(!*sr.piece && !sr.delim && !row->count()) // append last empty column [if without \n] @@ -343,7 +350,7 @@ static void _load(Request& r, MethodPara *row+=new String(sr.piece, 0, true); if(sr.delim=='\n') { table+=row; - row=new ArrayString; + row=new ArrayString(columns_count); skip_empty_and_comment_lines(&data); } } @@ -355,13 +362,14 @@ static void _load(Request& r, MethodPara GET_SELF(r, VTable).set_table(table); } -static void maybe_enclose( String& to, const String& from, char encloser, const String* sencloser ) { +void maybe_enclose( String& to, const String& from, char encloser, const String* sencloser ) { if(encloser) { to<<*sencloser; // while we have 'encloser'... size_t pos_after=0; - for( size_t pos_before; (pos_before=from.pos( encloser, pos_after ))!=STRING_NOT_FOUND; pos_after=pos_before+1) { - to<count()) - throw Exception("parser.runtime", + Value& voptions=params.as_no_junction(param_index++, "additional params must be hash"); + if( voptions.is_defined() && !voptions.is_string() ) { + if(HashStringValue* options=voptions.get_hash()) { + int valid_options=separators.load(*options); + if(valid_options!=options->count()) + throw Exception(PARSER_RUNTIME, + 0, + "invalid option passed"); + } else { + throw Exception(PARSER_RUNTIME, 0, - "invalid option passed"); - } else - throw Exception("parser.runtime", - 0, - "additional params must be hash (did you spell mode parameter correctly?)"); - + "additional params must be hash (did you spell mode parameter correctly?)"); + } + } } if(param_index i(*table.columns()); i.has_next(); ) { maybe_enclose( sdata, *i.next(), separators.encloser, separators.sencloser ); if(i.has_next()) - sdata.append_know_length("\t", 1, String::L_CLEAN); + sdata<<*separators.scolumn; } } else { // nameless table [we were asked to output column names] if(int lsize=table.count()?table[0]->count():0) @@ -427,7 +458,7 @@ static void _save(Request& r, MethodPara char *cindex_tab=new(PointerFreeGC) char[MAX_NUMBER]; sdata.append_know_length(cindex_tab, snprintf(cindex_tab, MAX_NUMBER, - column c(*i.next()); c.has_next(); ) { maybe_enclose( sdata, *c.next(), separators.encloser, separators.sencloser ); if(c.has_next()) - sdata.append_know_length("\t", 1, String::L_CLEAN); + sdata<<*separators.scolumn; } sdata.append_know_length("\n", 1, String::L_CLEAN); } // write - file_write(r.absolute(file_name), - sdata.cstr(), sdata.length(), true, do_append); + { + const char* data_cstr=sdata.cstr(); + file_write(r.absolute(file_name), + data_cstr, sdata.length(), true, do_append); + if(*data_cstr) // not empty (when empty it's not heap memory) + pa_free((void*)data_cstr); // not needed anymore + } +} + +static void _save(Request& r, MethodParams& params) { + const String& first_arg=params.as_string(0, "first argument must not be code"); + size_t param_index=1; + + bool do_append=false; + bool output_column_names=true; + + // mode? + if(first_arg=="append") + do_append=true; + else if(first_arg=="nameless") + output_column_names=false; + else + --param_index; + + const String& file_name=params.as_string(param_index++, "file name must not be code"); + + TableSeparators separators; + if(param_indexcount()) + throw Exception(PARSER_RUNTIME, + 0, + "invalid option passed"); + } else { + throw Exception(PARSER_RUNTIME, + 0, + "additional params must be hash (did you spell mode parameter correctly?)"); + } + } + } + if(param_index i(*table.columns()); i.has_next(); ) { + maybe_enclose( ost, *i.next(), separators.encloser ); + if(i.has_next()){ + ost<count():0) + for(int column=0; column i(table); + while(i.has_next()) { + for(Array_iterator c(*i.next()); c.has_next(); ) { + maybe_enclose( ost, *c.next(), separators.encloser ); + if(c.has_next()) + ost< + cycle_data_setter(r.classes_conf, cycle_data_name, /*any not null flag*/&r); + Value& body_code=params.as_junction(0, "body must be code"); Value* delim_maybe_code=params.count()>1?¶ms[1]:0; @@ -497,6 +626,7 @@ static void _menu(Request& r, MethodPara table.set_current(row); StringOrValue sv_processed=r.process(body_code); + Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); const String* s_processed=sv_processed.get_string(); if(delim_maybe_code && s_processed && s_processed->length()) { // delimiter set and we have body if(need_delim) // need delim & iteration produced string? @@ -504,6 +634,9 @@ static void _menu(Request& r, MethodPara need_delim=true; } r.write_pass_lang(sv_processed); + + if(lskip==Request::SKIP_BREAK) + break; } table.set_current(saved_current); } @@ -594,20 +727,21 @@ static void _hash(Request& r, MethodPara if(sdistinct=="tables") distinct=D_TABLES; else - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, &sdistinct, "must be 'tables' or true/false"); } else distinct=vdistinct_value.as_bool()?D_FIRST:D_ILLEGAL; } + if(valid_options!=options->count()) - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, "called with invalid option"); } } if(param_index==2) // bad options param type - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, "options must be hash"); @@ -630,10 +764,10 @@ static void _hash(Request& r, MethodPara +=self_table.column_name2index(value_field_name, true); } } else - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, - "value field(s) must be string or table" - ); + "value field(s) must be string or table"); + } else { // by all columns, including key if(!(distinct!=D_ILLEGAL && distinct!=D_FIRST)) for(size_t i=0; icount(); i++) @@ -659,6 +793,8 @@ static void _hash(Request& r, MethodPara int saved_current=self_table.current(); self_table.for_each(table_row_to_hash, &info); self_table.set_current(saved_current); + + result.extract_default(); } } r.write_no_lang(result); @@ -816,7 +952,7 @@ static void join_nameless_row(Table& src static void _join(Request& r, MethodParams& params) { Table* maybe_src=params.as_no_junction(0, "table ref must not be code").get_table(); if(!maybe_src) - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, "source is not a table"); Table& src=*maybe_src; @@ -827,7 +963,7 @@ static void _join(Request& r, MethodPara Table& dest=GET_SELF(r, VTable).table(); if(&src == &dest) - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, "source and destination are same table"); @@ -840,6 +976,7 @@ static void _join(Request& r, MethodPara #ifndef DOXYGEN class Table_sql_event_handlers: public SQL_Driver_query_event_handlers { ArrayString& columns; + int columns_count; ArrayString* row; public: Table* table; @@ -860,6 +997,7 @@ public: bool before_rows(SQL_Error& error) { try { table=new Table(&columns); + columns_count=columns.count(); return false; } catch(...) { error=SQL_Error("exception occured in Table_sql_event_handlers::before_rows"); @@ -868,7 +1006,7 @@ public: } bool add_row(SQL_Error& error) { try { - *table+=row=new ArrayString; + *table+=row=new ArrayString(columns_count); return false; } catch(...) { error=SQL_Error("exception occured in Table_sql_event_handlers::add_row"); @@ -909,7 +1047,7 @@ int marshal_binds(HashStringValue& hash, int hash_count=hash.count(); placeholders=new(UseGC) SQL_Driver::Placeholder[hash_count]; SQL_Driver::Placeholder* ptr=placeholders; - hash.for_each(marshal_bind, &ptr); + hash.for_each(marshal_bind, &ptr); return hash_count; } @@ -938,7 +1076,7 @@ static void _sql(Request& r, MethodParam ulong offset=0; if(params.count()>1) { Value& voptions=params.as_no_junction(1, "options must be hash, not code"); - if(!voptions.is_string()) + if(voptions.is_defined() && !voptions.is_string()) if(HashStringValue* options=voptions.get_hash()) { int valid_options=0; if(Value* vbind=options->get(sql_bind_name)) { @@ -954,11 +1092,11 @@ static void _sql(Request& r, MethodParam offset=(ulong)r.process_to_value(*voffset).as_double(); } if(valid_options!=options->count()) - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, "called with invalid option"); } else - throw Exception("parser.runtime", + throw Exception(PARSER_RUNTIME, 0, "options must be hash"); } @@ -980,7 +1118,7 @@ static void _sql(Request& r, MethodParam #endif r.connection()->query( statement_cstr, - 0, 0, + placeholders_count, placeholders, offset, limit, handlers, statement_string); @@ -1065,6 +1203,8 @@ MTable::MTable(): Methoded("table") { // ^table.save[nameless;file] add_native_method("save", Method::CT_DYNAMIC, _save, 1, 3); + // add_native_method("save_old", Method::CT_DYNAMIC, _save_old, 1, 3); + // ^table.count[] add_native_method("count", Method::CT_DYNAMIC, _count, 0, 0);