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| version 1.51, 2001/04/05 11:01:54 | version 1.232, 2007/08/20 10:07:36 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b table parser class. | Parser: @b table parser class. |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) | |
| */ | |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | static const char * const IDENT_TABLE_C="$Date$"; |
| $Id$ | #include <sstream> |
| */ | using namespace std; |
| #include "classes.h" | |
| #include "pa_vmethod_frame.h" | |
| #include "pa_config_includes.h" | |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "_table.h" | |
| #include "pa_vtable.h" | #include "pa_vtable.h" |
| #include "pa_vint.h" | #include "pa_vint.h" |
| #include "pa_sql_connection.h" | #include "pa_sql_connection.h" |
| #include "pa_vbool.h" | |
| // class | |
| class MTable: public Methoded { | |
| public: // VStateless_class | |
| Value* create_new_value(Pool&, HashStringValue&) { return new VTable(); } | |
| public: | |
| MTable(); | |
| public: // Methoded | |
| bool used_directly() { return true; } | |
| }; | |
| // global variable | |
| DECLARE_CLASS_VAR(table, new MTable, 0); | |
| // externs | |
| extern String cycle_data_name; | |
| // defines for globals | |
| #define SQL_BIND_NAME "bind" | |
| #define SQL_DEFAULT_NAME "default" | |
| #define SQL_DISTINCT_NAME "distinct" | |
| #define SQL_VALUE_TYPE_NAME "type" | |
| #define TABLE_REVERSE_NAME "reverse" | |
| // global var | |
| VStateless_class *table_class; | // globals |
| String sql_bind_name(SQL_BIND_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 sql_value_type_name(SQL_VALUE_TYPE_NAME); | |
| String table_reverse_name(TABLE_REVERSE_NAME); | |
| // methods | // methods |
| static void _set(Request& r, const String& method_name, Array *params) { | |
| Pool& pool=r.pool(); | |
| // data is last parameter | |
| Value *vdata=static_cast<Value *>(params->get(params->size()-1)); | |
| // forcing {this body type} | |
| r.fail_if_junction_(false, *vdata, method_name, "body must be junction"); | |
| Temp_lang temp_lang(r, String::UL_PASS_APPENDED); | static Table::Action_options get_action_options(Request& r, MethodParams& params, |
| const String& data=r.process(*vdata).as_string(); | const Table& source) { |
| Table::Action_options result; | |
| if(!params.count()) | |
| return result; | |
| Value& maybe_options=params.last(); | |
| /* can not do it: | |
| want to enable ^table::create[$source; | |
| # $.option[] | |
| ] | |
| 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; | |
| } | |
| */ | |
| HashStringValue* options=maybe_options.get_hash(); | |
| if(!options) | |
| return result; | |
| result.defined=true; | |
| bool defined_offset=false; | |
| int valid_options=0; | |
| if(Value* voffset=options->get(sql_offset_name)) { | |
| valid_options++; | |
| defined_offset=true; | |
| if(voffset->is_string()) { | |
| const String& soffset=*voffset->get_string(); | |
| if(soffset == "cur") | |
| result.offset=source.current(); | |
| else | |
| throw Exception(PARSER_RUNTIME, | |
| &soffset, | |
| "must be 'cur' string or expression"); | |
| } else | |
| result.offset=r.process_to_value(*voffset).as_int(); | |
| } | |
| if(Value* vlimit=options->get(sql_limit_name)) { | |
| valid_options++; | |
| result.limit=r.process_to_value(*vlimit).as_int(); | |
| } | |
| if(Value *vreverse=(Value *)options->get(table_reverse_name)) { | |
| valid_options++; | |
| result.reverse=r.process_to_value(*vreverse).as_bool(); | |
| if(result.reverse && !defined_offset) | |
| result.offset=source.count()-1; | |
| } | |
| if(valid_options!=options->count()) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "called with invalid option"); | |
| return result; | |
| } | |
| static void check_option_param(bool options_defined, | |
| MethodParams& params, size_t next_param_index, | |
| const char *msg) { | |
| if(next_param_index+(options_defined?1:0) != params.count()) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "%s", msg); | |
| } | |
| static void _create(Request& r, MethodParams& params) { | |
| // clone/copy part? | |
| if(Table *source=params[0].get_table()) { | |
| Table::Action_options o=get_action_options(r, params, *source); | |
| check_option_param(o.defined, params, 1, | |
| "too many parameters"); | |
| GET_SELF(r, VTable).set_table(*new Table(*source, o)); | |
| return; | |
| } | |
| // data is last parameter | |
| Temp_lang temp_lang(r, String::L_PASS_APPENDED); | |
| const String& data= | |
| r.process_to_string(params.as_junction(params.count()-1, "body must be code")); | |
| size_t pos_after=0; | |
| // parse columns | // parse columns |
| Array *columns; | size_t raw_pos_after=0; |
| if(params->size()==2) { | Table::columns_type columns; |
| columns=0; | 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 { | } else { |
| columns=new(pool) Array(pool); | columns=Table::columns_type(new ArrayString); |
| Array head(pool); | ArrayString head; |
| data.split(head, &pos_after, "\n", 1, String::UL_CLEAN, 1); | data.split(head, raw_pos_after, "\n", String::L_AS_IS, 1); |
| if(head.size()) | if(head.count()) { |
| head.get_string(0)->split(*columns, 0, "\t", 1, String::UL_CLEAN); | size_t col_pos_after=0; |
| head[0]->split(*columns, col_pos_after, "\t", String::L_AS_IS); | |
| } | |
| } | } |
| Table& table=*new(pool) Table(pool, &method_name, columns); | Table& table=*new Table(columns); |
| // parse cells | // parse cells |
| Array rows(pool); | |
| data.split(rows, &pos_after, "\n", 1, String::UL_CLEAN); | ArrayString rows; |
| int size=rows.quick_size(); | data.split(rows, raw_pos_after, "\n", String::L_AS_IS); |
| for(int i=0; i<size; i++) { | Array_iterator<const String*> i(rows); |
| Array& row=*new(pool) Array(pool); | while(i.has_next()) { |
| const String& string=*rows.quick_get_string(i); | Table::element_type row(new ArrayString); |
| // remove empty lines | const String& string=*i.next(); |
| if(!string.size()) | // remove comment lines |
| if(!string.length()) | |
| continue; | continue; |
| string.split(row, 0, "\t", 1, String::UL_CLEAN); | size_t col_pos_after=0; |
| table+=&row; | string.split(*row, col_pos_after, "\t", String::L_AS_IS); |
| table+=row; | |
| } | } |
| // replace any previous table value | // replace any previous table value |
| static_cast<VTable *>(r.self)->set_table(table); | GET_SELF(r, VTable).set_table(table); |
| } | |
| struct lsplit_result { | |
| char* piece; | |
| char delim; | |
| operator bool() { return piece!=0; } | |
| }; | |
| inline lsplit_result lsplit(char* string, char delim1, char delim2) { | |
| lsplit_result result; | |
| if(string) { | |
| char delims[]={delim1, delim2, 0}; | |
| if(char* v=strpbrk(string, delims)) { | |
| result.delim=*v; | |
| *v=0; | |
| result.piece=v+1; | |
| return result; | |
| } | |
| } | |
| result.piece=0; | |
| result.delim=0; | |
| return result; | |
| } | |
| inline lsplit_result lsplit(char* *string_ref, char delim1, char delim2) { | |
| lsplit_result result; | |
| result.piece=*string_ref; | |
| lsplit_result next=lsplit(*string_ref, delim1, delim2); | |
| result.delim=next.delim; | |
| *string_ref=next.piece; | |
| return result; | |
| } | } |
| static void _load(Request& r, const String& method_name, Array *params) { | static lsplit_result lsplit(char** string_ref, char delim1, char delim2, char encloser) { |
| Pool& pool=r.pool(); | lsplit_result result; |
| // filename is last parameter | |
| Value *vfilename=static_cast<Value *>(params->get(params->size()-1)); | if(char* string=*string_ref) { |
| // forcing [this file name type] | if(encloser && *string==encloser) { |
| r.fail_if_junction_(true, *vfilename, | string++; |
| method_name, "file name must not be junction"); | |
| char *read; | |
| char *write; | |
| write=read=string; | |
| char c; | |
| while((c=*read++)) { | |
| if(c==encloser) { | |
| char n=*read; | |
| if(n==encloser) // double-encloser stands for encloser | |
| read++; | |
| else if(n==delim1 || n==delim2) { | |
| result.delim=n; | |
| read++; | |
| break; | |
| } | |
| } | |
| *write++=c; | |
| } | |
| *write=0; // terminate | |
| *string_ref=c? read: 0; | |
| result.piece=string; | |
| return result; | |
| } else | |
| return lsplit(string_ref, delim1, delim2); | |
| } | |
| result.piece=0; | |
| return result; | |
| } | |
| static void skip_empty_and_comment_lines( char** data_ref ) { | |
| if(char *data=*data_ref) { | |
| while( char c=*data ) { | |
| if( c== '\n' || c == '#' ) { | |
| /*nowhere=*/getrow(&data); // remove empty&comment lines | |
| if(!(*data_ref=data)) | |
| break; | |
| continue; | |
| } | |
| break; | |
| } | |
| } | |
| } | |
| struct TableSeparators { | |
| 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=scolumn->first_char(); | |
| result++; | |
| } | |
| if(Value* vencloser=options.get(PA_COLUMN_ENCLOSER_NAME)) { | |
| sencloser=&vencloser->as_string(); | |
| if(sencloser->length()!=1) | |
| throw Exception(PARSER_RUNTIME, | |
| sencloser, | |
| "encloser must be one character long"); | |
| encloser=sencloser->first_char(); | |
| result++; | |
| } | |
| return result; | |
| } | |
| }; | |
| static void _load(Request& r, MethodParams& params) { | |
| const String& first_param=params.as_string(0, FILE_NAME_MUST_BE_STRING); | |
| int filename_param_index=0; | |
| bool nameless=first_param=="nameless"; | |
| if(nameless) | |
| filename_param_index++; | |
| size_t options_param_index=filename_param_index+1; | |
| HashStringValue *options=0; | |
| TableSeparators separators; | |
| if(options_param_index<params.count() | |
| && (options=params.as_no_junction(options_param_index, "additional params must be hash").get_hash())) { | |
| // cloning, so that we could change [to simplify checks on params inside file_read_text | |
| options=new HashStringValue(*options); | |
| separators.load(*options); | |
| } | |
| // loading text | // loading text |
| char *data=file_read_text(pool, r.absolute(vfilename->as_string())); | char *data=file_read_text(r.charsets, |
| r.absolute(params.as_string(filename_param_index, FILE_NAME_MUST_BE_STRING)), | |
| true, | |
| options | |
| ); | |
| // parse columns | // parse columns |
| Array *columns; | Table::columns_type columns; |
| #ifndef NO_STRING_ORIGIN | if(nameless) { |
| const Origin& origin=method_name.origin(); | columns=Table::columns_type(0); // nameless |
| const char *file=origin.file; | |
| uint line=origin.line; | |
| #endif | |
| if(params->size()==2) { | |
| columns=0; | |
| } else { | } else { |
| columns=new(pool) Array(pool); | columns=Table::columns_type(new ArrayString); |
| if(char *row_chars=getrow(&data)) | skip_empty_and_comment_lines(&data); |
| do { | while( lsplit_result sr=lsplit(&data, separators.column, '\n', separators.encloser) ) { |
| String *name=new(pool) String(pool); | *columns+=new String(sr.piece, 0, true); |
| name->APPEND_TAINTED(lsplit(&row_chars, '\t'), 0, file, line++); | if(sr.delim=='\n') |
| *columns+=name; | break; |
| } while(row_chars); | } |
| } | } |
| Table& table=*new Table(columns); | |
| int columns_count=columns? columns->count(): 0; | |
| // parse cells | // parse cells |
| Table& table=*new(pool) Table(pool, &method_name, columns); | Table::element_type row(new ArrayString(columns_count)); |
| char *row_chars; | skip_empty_and_comment_lines(&data); |
| while(row_chars=getrow(&data)) { | while( lsplit_result sr=lsplit(&data, separators.column, '\n', separators.encloser) ) { |
| if(!*row_chars) // remove empty lines | if(!*sr.piece && !sr.delim && !row->count()) // append last empty column [if without \n] |
| continue; | break; |
| Array *row=new(pool) Array(pool); | *row+=new String(sr.piece, 0, true); |
| while(char *cell_chars=lsplit(&row_chars, '\t')) { | if(sr.delim=='\n') { |
| String *cell=new(pool) String(pool); | table+=row; |
| cell->APPEND_TAINTED(cell_chars, 0, file, line); | row=new ArrayString(columns_count); |
| *row+=cell; | skip_empty_and_comment_lines(&data); |
| } | } |
| line++; | } |
| // last line [if without \n] | |
| if(row->count()) | |
| table+=row; | table+=row; |
| }; | |
| // replace any previous table value | // replace any previous table value |
| static_cast<VTable *>(r.self)->set_table(table); | GET_SELF(r, VTable).set_table(table); |
| } | } |
| static void _save(Request& r, const String& method_name, Array *params) { | void maybe_enclose( String& to, const String& from, char encloser, const String* sencloser ) { |
| Pool& pool=r.pool(); | if(encloser) { |
| Value *vtable_name=static_cast<Value *>(params->get(params->size()-1)); | to<<*sencloser; |
| // forcing this body type] | // while we have 'encloser'... |
| r.fail_if_junction_(true, *vtable_name, | size_t pos_after=0; |
| method_name, "file name must not be junction"); | for( size_t pos_before; (pos_before=from.pos( encloser, pos_after ))!=STRING_NOT_FOUND; pos_after=pos_before) { |
| pos_before++; // including first encloser (and skipping it for next pos) | |
| to<<from.mid(pos_after, pos_before); | |
| to<<*sencloser; // doubling encloser | |
| } | |
| // last piece | |
| size_t from_length=from.length(); | |
| if(pos_after<from_length) | |
| to<<from.mid(pos_after, from_length); | |
| to<<*sencloser; | |
| } else | |
| to<<from; | |
| } | |
| void maybe_enclose( ostringstream& to, const String& from, char encloser ) { | |
| if(encloser) { | |
| to<<encloser; | |
| // 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) { | |
| pos_before++; // including first encloser (and skipping it for next pos) | |
| to<<from.mid(pos_after, pos_before).cstr(); | |
| to<<encloser; // doubling encloser | |
| } | |
| // last piece | |
| size_t from_length=from.length(); | |
| if(pos_after<from_length) | |
| to<<from.mid(pos_after, from_length).cstr(); | |
| to<<encloser; | |
| } else | |
| to<<from.cstr(); | |
| } | |
| static void _save_old(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_index<params.count()) { | |
| 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, | |
| "additional params must be hash (did you spell mode parameter correctly?)"); | |
| } | |
| } | |
| } | |
| if(param_index<params.count()) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "bad mode (must be nameless or append)"); | |
| Table& table=static_cast<VTable *>(r.self)->table(); | Table& table=GET_SELF(r, VTable).table(); |
| String sdata(pool); | String sdata; |
| if(params->size()==1) { // not nameless=named output | if(output_column_names) { |
| // write out names line | |
| if(table.columns()) { // named table | if(table.columns()) { // named table |
| for(int column=0; column<table.columns()->size(); column++) { | for(Array_iterator<const String*> i(*table.columns()); i.has_next(); ) { |
| if(column) | maybe_enclose( sdata, *i.next(), separators.encloser, separators.sencloser ); |
| sdata.APPEND_CONST("\t"); | if(i.has_next()) |
| sdata.append(*static_cast<String *>(table.columns()->quick_get(column)), | sdata<<*separators.scolumn; |
| String::UL_TABLE); | } |
| } | } else { // nameless table [we were asked to output column names] |
| } else { // nameless table | if(int lsize=table.count()?table[0]->count():0) |
| int lsize=table.size()?static_cast<Array *>(table.get(0))->size():0; | |
| if(lsize) | |
| for(int column=0; column<lsize; column++) { | for(int column=0; column<lsize; column++) { |
| char *cindex_tab=(char *)malloc(MAX_NUMBER); | char *cindex_tab=new(PointerFreeGC) char[MAX_NUMBER]; |
| snprintf(cindex_tab, MAX_NUMBER, "%d\t", column); | sdata.append_know_length(cindex_tab, |
| sdata.APPEND_CONST(cindex_tab); | snprintf(cindex_tab, MAX_NUMBER, |
| column<lsize-1?"%d%c":"%d", column, separators.column), | |
| String::L_CLEAN); | |
| } | } |
| else | else |
| sdata.APPEND_CONST("empty nameless table"); | sdata.append_help_length("empty nameless table", 0, String::L_CLEAN); |
| } | } |
| sdata.APPEND_CONST("\n"); | sdata.append_know_length("\n", 1, String::L_CLEAN); |
| } | } |
| // data lines | // data lines |
| for(int index=0; index<table.size(); index++) { | Array_iterator<ArrayString*> i(table); |
| Array *row=static_cast<Array *>(table.quick_get(index)); | while(i.has_next()) { |
| for(int column=0; column<row->size(); column++) { | for(Array_iterator<const String*> c(*i.next()); c.has_next(); ) { |
| if(column) | maybe_enclose( sdata, *c.next(), separators.encloser, separators.sencloser ); |
| sdata.APPEND_CONST("\t"); | if(c.has_next()) |
| sdata.append(*static_cast<String *>(row->quick_get(column)), | sdata<<*separators.scolumn; |
| String::UL_TABLE); | } |
| sdata.append_know_length("\n", 1, String::L_CLEAN); | |
| } | |
| // write | |
| { | |
| 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_index<params.count()) { | |
| 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, | |
| "additional params must be hash (did you spell mode parameter correctly?)"); | |
| } | |
| } | |
| } | |
| if(param_index<params.count()) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "bad mode (must be nameless or append)"); | |
| Table& table=GET_SELF(r, VTable).table(); | |
| ostringstream ost(stringstream::out); | |
| // process header | |
| if(output_column_names) { | |
| if(table.columns()) { // named table | |
| for(Array_iterator<const String*> i(*table.columns()); i.has_next(); ) { | |
| maybe_enclose( ost, *i.next(), separators.encloser ); | |
| if(i.has_next()){ | |
| ost<<separators.column; | |
| } | |
| } | |
| } else { // nameless table [we were asked to output column names] | |
| if(int lsize=table.count()?table[0]->count():0) | |
| for(int column=0; column<lsize; column++) { | |
| if(separators.encloser) { | |
| ost<<separators.encloser<<column<<separators.encloser; | |
| } else { | |
| ost<<column; | |
| } | |
| if(column<lsize-1){ | |
| ost<<separators.column; | |
| } | |
| } | |
| else | |
| ost<<"empty nameless table"; | |
| } | |
| ost<<'\n'; | |
| } | |
| // process data lines | |
| Array_iterator<ArrayString*> i(table); | |
| while(i.has_next()) { | |
| for(Array_iterator<const String*> c(*i.next()); c.has_next(); ) { | |
| maybe_enclose( ost, *c.next(), separators.encloser ); | |
| if(c.has_next()) | |
| ost<<separators.column; | |
| } | } |
| sdata.APPEND_CONST("\n"); | ost<<'\n'; |
| } | } |
| // write | // write |
| file_write(pool, r.absolute(vtable_name->as_string()), | { |
| sdata.cstr(), sdata.size(), true); | string data=ost.str(); |
| const char* data_cstr = data.c_str(); | |
| file_write(r.absolute(file_name), data_cstr, data.length(), true /* as text */, do_append); | |
| } | |
| } | } |
| static void _count(Request& r, const String&method_name, Array *) { | static void _count(Request& r, MethodParams&) { |
| Pool& pool=r.pool(); | int result=GET_SELF(r, VTable).table().count(); |
| Value& value=*new(pool) VInt(pool, static_cast<VTable *>(r.self)->table().size()); | r.write_no_lang(*new VInt(result)); |
| r.write_no_lang(value); | |
| } | } |
| static void _line(Request& r, const String& method_name, Array *) { | static void _line(Request& r, MethodParams&) { |
| Pool& pool=r.pool(); | int result=1+GET_SELF(r, VTable).table().current(); |
| Value& value=*new(pool) VInt(pool, 1+static_cast<VTable *>(r.self)->table().current()); | r.write_no_lang(*new VInt(result)); |
| r.write_no_lang(value); | |
| } | } |
| static void _offset(Request& r, const String& method_name, Array *params) { | static void _offset(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | Table& table=GET_SELF(r, VTable).table(); |
| Table& table=static_cast<VTable *>(r.self)->table(); | if(params.count()) { |
| if(params->size()) | bool absolute=false; |
| table.shift((int)r.process(*static_cast<Value *>(params->get(0))).as_double()); | if(params.count()>1) { |
| else { | const String& whence=params.as_string(0, "whence must be string"); |
| Value& value=*new(pool) VInt(pool, table.current()); | if(whence=="cur") |
| r.write_no_lang(value); | absolute=false; |
| } | else if(whence=="set") |
| absolute=true; | |
| else | |
| throw Exception(PARSER_RUNTIME, | |
| &whence, | |
| "is invalid whence, valid are 'cur' or 'set'"); | |
| } | |
| int offset=params.as_int(params.count()-1, "offset must be expression", r); | |
| table.offset(absolute, offset); | |
| } else | |
| r.write_no_lang(*new VInt(table.current())); | |
| } | } |
| static void _menu(Request& r, const String& method_name, Array *params) { | static void _menu(Request& r, MethodParams& params) { |
| Value& body_code=*static_cast<Value *>(params->get(0)); | Temp_hash_value<const String::Body, void*> |
| // forcing ^menu{this param type} | cycle_data_setter(r.classes_conf, cycle_data_name, /*any not null flag*/&r); |
| r.fail_if_junction_(false, body_code, | |
| method_name, "body must be junction"); | Value& body_code=params.as_junction(0, "body must be code"); |
| Value *delim_code=params->size()==2?static_cast<Value *>(params->get(1)):0; | Value* delim_maybe_code=params.count()>1?¶ms[1]:0; |
| Table& table=static_cast<VTable *>(r.self)->table(); | Table& table=GET_SELF(r, VTable).table(); |
| bool need_delim=false; | bool need_delim=false; |
| int saved_current=table.current(); | int saved_current=table.current(); |
| for(int row=0; row<table.size(); row++) { | int size=table.count(); |
| for(int row=0; row<size; row++) { | |
| table.set_current(row); | table.set_current(row); |
| Value& processed_body=r.process(body_code); | StringOrValue sv_processed=r.process(body_code); |
| if(delim_code) { // delimiter set? | Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); |
| const String *string=processed_body.get_string(); | const String* s_processed=sv_processed.get_string(); |
| if(need_delim && string && string->size()) // need delim & iteration produced string? | if(delim_maybe_code && s_processed && s_processed->length()) { // delimiter set and we have body |
| r.write_pass_lang(r.process(*delim_code)); | if(need_delim) // need delim & iteration produced string? |
| r.write_pass_lang(r.process(*delim_maybe_code)); | |
| need_delim=true; | need_delim=true; |
| } | } |
| r.write_pass_lang(processed_body); | r.write_pass_lang(sv_processed); |
| } | |
| table.set_current(saved_current); | |
| } | |
| static void _empty(Request& r, const String& method_name, Array *params) { | if(lskip==Request::SKIP_BREAK) |
| Table& table=static_cast<VTable *>(r.self)->table(); | break; |
| if(table.size()==0) { | |
| Value& value=r.process(*static_cast<Value *>(params->get(0))); | |
| r.write_pass_lang(value); | |
| } else if(params->size()==2) { | |
| Value& value=r.process(*static_cast<Value *>(params->get(1))); | |
| r.write_pass_lang(value); | |
| } | } |
| table.set_current(saved_current); | |
| } | } |
| struct Record_info { | #ifndef DOXYGEN |
| Pool *pool; | enum Table2hash_distint { D_ILLEGAL, D_FIRST }; |
| enum Table2hash_value_type { C_HASH, C_STRING, C_TABLE }; | |
| struct Row_info { | |
| Request *r; | |
| Table *table; | Table *table; |
| Hash *hash; | Value* key_code; |
| size_t key_field; | |
| Array<int>* value_fields; | |
| HashStringValue* hash; | |
| Table2hash_distint distinct; | |
| size_t row; | |
| Table2hash_value_type value_type; | |
| }; | }; |
| static void store_column_item_to_hash(Array::Item *item, void *info) { | #endif |
| Record_info& ri=*static_cast<Record_info *>(info); | static void table_row_to_hash(Table::element_type row, Row_info *info) { |
| String& column_name=*static_cast<String *>(item); | const String* key; |
| const String *column_item=ri.table->item(column_name); | if(info->key_code) { |
| Value *value; | info->table->set_current(info->row++); // change context row |
| if(column_item) | StringOrValue sv_processed=info->r->process(*info->key_code); |
| value=new(*ri.pool) VString(*column_item); | key=&sv_processed.as_string(); |
| else | } else { |
| value=new(*ri.pool) VUnknown(*ri.pool); | key=info->key_field<row->count()?row->get(info->key_field):0; |
| ri.hash->put(column_name, value); | } |
| } | |
| static void _record(Request& r, const String& method_name, Array *params) { | if(!key) |
| Table& table=static_cast<VTable *>(r.self)->table(); | return; // ignore rows without key [too-short-record_array if-indexed] |
| if(const Array *columns=table.columns()) { | |
| Pool& pool=r.pool(); | |
| Value& value=*new(pool) VHash(pool); | |
| Record_info record_info={&pool, &table, value.get_hash()}; | |
| columns->for_each(store_column_item_to_hash, &record_info); | |
| r.write_no_lang(value); | bool exist = false; |
| switch (info->value_type) { | |
| case C_STRING: | |
| { | |
| exist=info->hash->put_dont_replace(*key, new VString(*row->get(info->value_fields->get(0)))); | |
| } | |
| break; | |
| case C_HASH: | |
| { | |
| VHash* vhash=new VHash; | |
| HashStringValue& hash=vhash->hash(); | |
| for(Array_iterator<int> i(*info->value_fields); i.has_next(); ) { | |
| size_t value_field=i.next(); | |
| if(value_field<row->count()) | |
| hash.put( | |
| *info->table->columns()->get(value_field), | |
| new VString(*row->get(value_field))); | |
| } | |
| exist=info->hash->put_dont_replace(*key, vhash); | |
| } | |
| break; | |
| case C_TABLE: | |
| { | |
| VTable* vtable=(VTable*)info->hash->get(*key); // put. table existed? | |
| if( info->distinct==D_ILLEGAL ){ | |
| exist=true; | |
| break; | |
| } | |
| Table* table; | |
| if(vtable) { | |
| table=vtable->get_table(); | |
| } else { | |
| // no? creating table of same structure as source | |
| Table::Action_options table_options(0, 0); | |
| table=new Table(*info->table, table_options/*no rows, just structure*/); | |
| info->hash->put(*key, new VTable(table)); | |
| } | |
| *table+=row; | |
| } | |
| break; | |
| } | } |
| if(exist && info->distinct==D_ILLEGAL) | |
| throw Exception(PARSER_RUNTIME, | |
| key, | |
| "duplicate key"); | |
| } | |
| static void _hash(Request& r, MethodParams& params) { | |
| Table& self_table=GET_SELF(r, VTable).table(); | |
| VHash& result=*new VHash; | |
| if(Table::columns_type columns=self_table.columns()) | |
| if(columns->count()>0) { | |
| Table2hash_distint distinct=D_ILLEGAL; | |
| Table2hash_value_type value_type=C_HASH; | |
| int param_index=params.count()-1; | |
| if(param_index>0) { | |
| if(HashStringValue* options= | |
| params.as_no_junction(param_index, "param must not be code").get_hash() | |
| ){ | |
| --param_index; | |
| int valid_options=0; | |
| if(Value* vdistinct_code=options->get(sql_distinct_name)) { | |
| valid_options++; | |
| Value& vdistinct_value=r.process_to_value(*vdistinct_code); | |
| if(vdistinct_value.is_string()) { | |
| const String& sdistinct=*vdistinct_value.get_string(); | |
| if(sdistinct=="tables") { | |
| value_type=C_TABLE; | |
| distinct=D_FIRST; | |
| } else | |
| throw Exception(PARSER_RUNTIME, | |
| &sdistinct, | |
| "must be 'tables' or true/false"); | |
| } else | |
| distinct=vdistinct_value.as_bool()?D_FIRST:D_ILLEGAL; | |
| } | |
| if(Value* vvalue_type_code=options->get(sql_value_type_name)) { | |
| if(value_type==C_TABLE){ // $.distinct[tables] was specified | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "you can't specify $.distinct[tables] and $.values[] together."); | |
| } else { | |
| valid_options++; | |
| Value& vvalue_type_value=r.process_to_value(*vvalue_type_code); | |
| if(vvalue_type_value.is_string()) { | |
| const String& svalue_type=*vvalue_type_value.get_string(); | |
| if(svalue_type == "table"){ | |
| value_type=C_TABLE; | |
| } else if (svalue_type == "string") { | |
| value_type=C_STRING; | |
| } else if (svalue_type == "hash") { | |
| value_type=C_HASH; | |
| } else { | |
| throw Exception(PARSER_RUNTIME, | |
| &svalue_type, | |
| "must be 'hash', 'table' or 'string'"); | |
| } | |
| } | |
| } | |
| } | |
| if(valid_options!=options->count()) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "called with invalid option"); | |
| } | |
| } | |
| if(param_index==2) // bad options param type | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "options must be hash"); | |
| Array<int> value_fields; | |
| if(param_index>0) { | |
| if(value_type==C_TABLE) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "in distinct[tables] mode you may not specify value field(s)"); | |
| Value& value_fields_param=params.as_no_junction(param_index, "value field(s) must not be code"); | |
| if(value_fields_param.is_string()) { | |
| value_fields+=self_table.column_name2index( | |
| *value_fields_param.get_string(), true); | |
| } else if(Table* value_fields_table=value_fields_param.get_table()) { | |
| for(Array_iterator<Table::element_type> i(*value_fields_table); | |
| i.has_next(); ) { | |
| const String& value_field_name | |
| =*i.next()->get(0); | |
| value_fields | |
| +=self_table.column_name2index(value_field_name, true); | |
| } | |
| } else | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "value field(s) must be string or table"); | |
| } else { // by all columns, including key | |
| if(value_type==C_STRING) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "with $.values[string] you must specify one value field(s)"); | |
| // if(!(distinct!=D_ILLEGAL && distinct!=D_FIRST)) | |
| for(size_t i=0; i<columns->count(); i++) | |
| value_fields+=i; | |
| } | |
| if(value_type==C_STRING && value_fields.count()!=1) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "you can specify one value field with this $.type[]."); | |
| { | |
| Value* key_param=¶ms[0]; | |
| Row_info info={ | |
| &r, | |
| &self_table, | |
| /*key_code=*/key_param->get_junction()?key_param:0, | |
| /*key_field=*/0/*filled below*/, | |
| &value_fields, | |
| &result.hash(), | |
| distinct, | |
| /*row=*/0, | |
| value_type | |
| }; | |
| info.key_field=(info.key_code?-1 | |
| :self_table.column_name2index(key_param->as_string(), true)); | |
| 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); | |
| } | } |
| struct Seq_item { | #ifndef DOXYGEN |
| Array *row; | struct Table_seq_item { |
| ArrayString* row; | |
| union { | union { |
| char *c_str; | const char *c_str; |
| double d; | double d; |
| } value; | } value; |
| }; | }; |
| #endif | |
| static int sort_cmp_string(const void *a, const void *b) { | static int sort_cmp_string(const void *a, const void *b) { |
| return strcmp( | return strcmp( |
| static_cast<const Seq_item *>(a)->value.c_str, | static_cast<const Table_seq_item *>(a)->value.c_str, |
| static_cast<const Seq_item *>(b)->value.c_str | static_cast<const Table_seq_item *>(b)->value.c_str |
| ); | ); |
| } | } |
| static int sort_cmp_double(const void *a, const void *b) { | static int sort_cmp_double(const void *a, const void *b) { |
| double va=static_cast<const Seq_item *>(a)->value.d; | double va=static_cast<const Table_seq_item *>(a)->value.d; |
| double vb=static_cast<const Seq_item *>(b)->value.d; | double vb=static_cast<const Table_seq_item *>(b)->value.d; |
| if(va<vb) | if(va<vb) |
| return -1; | return -1; |
| else if(va>vb) | else if(va>vb) |
| Line 276 static int sort_cmp_double(const void *a | Line 874 static int sort_cmp_double(const void *a |
| else | else |
| return 0; | return 0; |
| } | } |
| static void _sort(Request& r, const String& method_name, Array *params) { | static void _sort(Request& r, MethodParams& params) { |
| Value& key_maker=*(Value *)params->get(0); | Value& key_maker=params.as_junction(0, "key-maker must be code"); |
| // forcing ^sort{this} ^sort(or this) param type | |
| r.fail_if_junction_(false, key_maker, method_name, "key-maker must be junction"); | |
| bool reverse; | |
| if(params->size()==2) { // ..[asc|desc] | |
| Value& order=*(Value *)params->get(1); | |
| // forcing ..[this param-type] | |
| r.fail_if_junction_(true, order, method_name, "order must not be junction"); | |
| reverse=order.as_string()=="desc"; | |
| } else | |
| reverse=false; | |
| Table& table=static_cast<VTable *>(r.self)->table(); | bool reverse=params.count()>1/*..[desc|asc|]*/? |
| reverse=params.as_no_junction(1, "order must not be code").as_string()=="desc": | |
| false; // default=asc | |
| // anything to sort? | Table& old_table=GET_SELF(r, VTable).table(); |
| if(!table.size()) | Table& new_table=*new Table(old_table.columns()); |
| return; | |
| Seq_item *seq=(Seq_item *)malloc(sizeof(Seq_item)*table.size()); | Table_seq_item* seq=new(PointerFreeGC) Table_seq_item[old_table.count()]; |
| int i; | int i; |
| // calculate key values | // calculate key values |
| bool key_values_are_strings=true; | bool key_values_are_strings=true; |
| for(i=0; i<table.size(); i++) { | int old_count=old_table.count(); |
| table.set_current(i); | for(i=0; i<old_count; i++) { |
| old_table.set_current(i); | |
| // calculate key value | // calculate key value |
| seq[i].row=(Array *)table.get(i); | seq[i].row=old_table[i]; |
| Value& value=*r.process(key_maker).as_expr_result(true/*return string as-is*/); | Value& value=r.process_to_value(key_maker).as_expr_result(true/*return string as-is*/); |
| if(i==0) // determining key values type by first one | if(i==0) // determining key values type by first one |
| key_values_are_strings=value.is_string(); | key_values_are_strings=value.is_string(); |
| Line 315 static void _sort(Request& r, const Stri | Line 904 static void _sort(Request& r, const Stri |
| seq[i].value.d=value.as_double(); | seq[i].value.d=value.as_double(); |
| } | } |
| // sort keys | // sort keys |
| _qsort(seq, table.size(), sizeof(Seq_item), | _qsort(seq, old_count, sizeof(Table_seq_item), |
| key_values_are_strings?sort_cmp_string:sort_cmp_double); | key_values_are_strings?sort_cmp_string:sort_cmp_double); |
| // reorder table as they require in 'seq' | // reorder table as they require in 'seq' |
| for(i=0; i<table.size(); i++) | for(i=0; i<old_count; i++) |
| table.put(i, seq[reverse?table.size()-1-i:i].row); | new_table+=Table::element_type(seq[reverse?old_count-1-i:i].row); |
| // reset 'current' | delete[] seq; |
| table.set_current(0); | |
| // replace any previous table value | |
| GET_SELF(r, VTable).set_table(new_table); | |
| } | } |
| static void _locate(Request& r, const String& method_name, Array *params) { | #ifndef DOXYGEN |
| VTable& vtable=*static_cast<VTable *>(r.self); | struct Expression_is_true_info { |
| Table& table=vtable.table(); | Request* r; |
| vtable.last_locate_was_successful=table.locate( | Value* expression_code; |
| static_cast<Value *>(params->get(0))->as_string(), | }; |
| static_cast<Value *>(params->get(1))->as_string()); | #endif |
| } | static bool expression_is_true(Table&, Expression_is_true_info* info) { |
| return info->r->process_to_value(*info->expression_code).as_bool(); | |
| static void _found(Request& r, const String& method_name, Array *params) { | |
| if(static_cast<VTable *>(r.self)->last_locate_was_successful) { | |
| Value& then_code=*static_cast<Value *>(params->get(0)); | |
| // forcing ^found{this param type} | |
| r.fail_if_junction_(false, then_code, | |
| method_name, "found-parameter must be junction"); | |
| r.write_pass_lang(r.process(then_code)); | |
| } else if(params->size()==2) { | |
| Value& else_code=*static_cast<Value *>(params->get(1)); | |
| // forcing ^found{this param type} | |
| r.fail_if_junction_(false, else_code, | |
| method_name, "not found-parameter must be junction"); | |
| r.write_pass_lang(r.process(else_code)); | |
| } | |
| } | } |
| static bool _locate_expression(Table& table, Table::Action_options o, | |
| Request& r, MethodParams& params) { | |
| check_option_param(o.defined, params, 1, | |
| "locate by expression only has parameters: expression and, maybe, options"); | |
| Value& expression_code=params.as_junction(0, "must be expression"); | |
| static void _flip(Request& r, const String& method_name, Array *params) { | Expression_is_true_info info={&r, &expression_code}; |
| Pool& pool=r.pool(); | return table.table_first_that(expression_is_true, &info, o); |
| VTable& vtable=*static_cast<VTable *>(r.self); | } |
| static bool _locate_name_value(Table& table, Table::Action_options o, | |
| Table& old_table=*vtable.get_table(); | Request&, MethodParams& params) { |
| Table& new_table=*new(pool) Table(pool, &method_name, 0/*nameless*/); | check_option_param(o.defined, params, 2, |
| if(old_table.size()) | "locate by locate by name has parameters: name, value and, maybe, options"); |
| if(int old_cols=old_table.at(0).size()) | const String& name=params.as_string(0, "column name must be string"); |
| for(int column=0; column<old_cols; column++) { | const String& value=params.as_string(1, VALUE_MUST_BE_STRING); |
| Array& new_row=*new(pool) Array(pool, old_table.size()); | return table.locate(name, value, o); |
| for(int i=0; i<old_table.size(); i++) { | } |
| const Array& old_row=old_table.at(i); | static void _locate(Request& r, MethodParams& params) { |
| new_row+=column<old_row.size()?old_row.get(column):empty_string; | Table& table=GET_SELF(r, VTable).table(); |
| Table::Action_options o=get_action_options(r, params, table); | |
| bool result=params[0].get_junction()? | |
| _locate_expression(table, o, r, params) : | |
| _locate_name_value(table, o, r, params); | |
| r.write_no_lang(*new VBool(result)); | |
| } | |
| static void _flip(Request& r, MethodParams&) { | |
| Table& old_table=GET_SELF(r, VTable).table(); | |
| Table& new_table=*new Table(0); | |
| if(size_t old_count=old_table.count()) | |
| if(size_t old_cols=old_table[0]->count()) | |
| for(size_t column=0; column<old_cols; column++) { | |
| Table::element_type new_row(new ArrayString(old_count)); | |
| for(size_t i=0; i<old_count; i++) { | |
| Table::element_type old_row=old_table[i]; | |
| *new_row+=column<old_row->count()?old_row->get(column):new String; | |
| } | } |
| new_table+=&new_row; | new_table+=new_row; |
| } | } |
| vtable.set_table(new_table); | r.write_no_lang(*new VTable(&new_table)); |
| } | } |
| static void _append(Request& r, const String& method_name, Array *params) { | static void _append(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | // data |
| // data is last parameter | Temp_lang temp_lang(r, String::L_PASS_APPENDED); |
| Value *value=static_cast<Value *>(params->get(0)); | const String& string=r.process_to_string(params.as_junction(0, "body must be code")); |
| // forcing {this body type} | |
| r.fail_if_junction_(false, *value, method_name, "body must be junction"); | |
| const String& string=r.process(*value).as_string(); | |
| // parse cells | // parse cells |
| Array& row=*new(pool) Array(pool); | Table::element_type row=new ArrayString; |
| string.split(row, 0, "\t", 1, String::UL_CLEAN); | size_t pos_after=0; |
| string.split(*row, pos_after, "\t", String::L_AS_IS); | |
| static_cast<VTable *>(r.self)->table()+=&row; | GET_SELF(r, VTable).table()+=row; |
| } | } |
| static void _join(Request& r, const String& method_name, Array *params) { | static void join_named_row(Table& src, Table* dest) { |
| Pool& pool=r.pool(); | Table::columns_type dest_columns=dest->columns(); |
| size_t dest_columns_count=dest_columns->count(); | |
| Value *value=static_cast<Value *>(params->get(0)); | Table::element_type dest_row(new ArrayString(dest_columns_count)); |
| // forcing [this table ref type] | for(size_t dest_column=0; dest_column<dest_columns_count; dest_column++) { |
| r.fail_if_junction_(true, *value, method_name, "table ref must not be junction"); | const String* src_item=src.item(*dest_columns->get(dest_column)); |
| *dest_row+=src_item?src_item:new String; | |
| Table *maybe_src=value->get_table(); | } |
| *dest+=dest_row; | |
| } | |
| static void join_nameless_row(Table& src, Table* dest) { | |
| *dest+=src[src.current()]; | |
| } | |
| 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) | if(!maybe_src) |
| PTHROW(0, 0, | throw Exception(PARSER_RUNTIME, |
| &method_name, | 0, |
| "source is not a table"); | "source is not a table"); |
| Table& src=*maybe_src; | Table& src=*maybe_src; |
| Table& dest=static_cast<VTable *>(r.self)->table(); | |
| Table::Action_options o=get_action_options(r, params, src); | |
| check_option_param(o.defined, params, 1, | |
| "invalid extra parameter"); | |
| Table& dest=GET_SELF(r, VTable).table(); | |
| if(&src == &dest) | if(&src == &dest) |
| PTHROW(0, 0, | throw Exception(PARSER_RUNTIME, |
| &method_name, | 0, |
| "source and destination are same table"); | "source and destination are same table"); |
| if(const Array *dest_columns=dest.columns()) { // dest is named | if(dest.columns()) // dest is named |
| int saved_src_current=src.current(); | src.table_for_each(join_named_row, &dest, o); |
| for(int src_row=0; src_row<src.size(); src_row++) { | else // dest is nameless |
| src.set_current(src_row); | src.table_for_each(join_nameless_row, &dest, o); |
| Array& dest_row=*new(pool) Array(pool); | |
| for(int dest_column=0; dest_column<dest_columns->size(); dest_column++) | |
| dest_row+=src.item(*dest_columns->get_string(dest_column)); | |
| dest+=&dest_row; | |
| } | |
| src.set_current(saved_src_current); | |
| } else { // dest is nameless | |
| for(int src_row=0; src_row<src.size(); src_row++) | |
| dest+=&src.at(src_row); | |
| } | |
| } | } |
| /// ^table:sql{query}[(count[;offset])] @test limit/offset | #ifndef DOXYGEN |
| static void _sql(Request& r, const String& method_name, Array *params) { | class Table_sql_event_handlers: public SQL_Driver_query_event_handlers { |
| Pool& pool=r.pool(); | ArrayString& columns; |
| int columns_count; | |
| if(!r.connection) | ArrayString* row; |
| PTHROW(0, 0, | public: |
| &method_name, | Table* table; |
| "without connect"); | public: |
| Table_sql_event_handlers() : | |
| Value& statement=*static_cast<Value *>(params->get(0)); | columns(*new ArrayString), row(0), table(0) { |
| // forcing {this query param type} | } |
| r.fail_if_junction_(true, statement, method_name, "statement must not be junction"); | |
| bool add_column(SQL_Error& error, const char *str, size_t length) { | |
| ulong count=0; | try { |
| if(params->size()>1) { | columns+=new String(str, length, true); |
| Value& count_code=*static_cast<Value *>(params->get(1)); | return false; |
| // forcing (this count param type) | } catch(...) { |
| r.fail_if_junction_(false, count_code, method_name, "count must be expression"); | error=SQL_Error("exception occured in Table_sql_event_handlers::add_column"); |
| count=(uint)r.process(count_code).as_double(); | return true; |
| } | |
| } | } |
| 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"); | |
| return true; | |
| } | |
| } | |
| bool add_row(SQL_Error& error) { | |
| try { | |
| *table+=row=new ArrayString(columns_count); | |
| return false; | |
| } catch(...) { | |
| error=SQL_Error("exception occured in Table_sql_event_handlers::add_row"); | |
| return true; | |
| } | |
| } | |
| bool add_row_cell(SQL_Error& error, const char* str, size_t length) { | |
| try { | |
| String& cell=*new String; | |
| if(length) | |
| cell.append_know_length(str, length, String::L_TAINTED); | |
| *row+=&cell; | |
| return false; | |
| } catch(...) { | |
| error=SQL_Error("exception occured in Table_sql_event_handlers::add_row_cell"); | |
| return true; | |
| } | |
| } | |
| }; | |
| #endif | |
| static void marshal_bind( | |
| HashStringValue::key_type aname, | |
| HashStringValue::value_type avalue, | |
| SQL_Driver::Placeholder** pptr) | |
| { | |
| SQL_Driver::Placeholder& ph=**pptr; | |
| ph.name=aname.cstr(); | |
| ph.value=avalue->as_string().cstr(String::L_UNSPECIFIED); | |
| ph.is_null=avalue->get_class()==void_class; | |
| ph.were_updated=false; | |
| (*pptr)++; | |
| } | |
| // not static, used elsewhere | |
| int marshal_binds(HashStringValue& hash, SQL_Driver::Placeholder*& placeholders) { | |
| int hash_count=hash.count(); | |
| placeholders=new(UseGC) SQL_Driver::Placeholder[hash_count]; | |
| SQL_Driver::Placeholder* ptr=placeholders; | |
| hash.for_each<SQL_Driver::Placeholder**>(marshal_bind, &ptr); | |
| return hash_count; | |
| } | |
| // not static, used elsewhere | |
| void unmarshal_bind_updates(HashStringValue& hash, int placeholder_count, SQL_Driver::Placeholder* placeholders) { | |
| SQL_Driver::Placeholder* ph=placeholders; | |
| for(int i=0; i<placeholder_count; i++, ph++) | |
| if(ph->were_updated) { | |
| Value* value; | |
| if(ph->is_null) | |
| value=new VVoid(); | |
| else | |
| if(ph->value) | |
| value=new VString(*new String(ph->value, 0, true/*tainted*/)); | |
| else | |
| value=new VString(*new String()); | |
| hash.put(ph->name, value); | |
| } | |
| } | |
| static void _sql(Request& r, MethodParams& params) { | |
| Value& statement=params.as_junction(0, "statement must be code"); | |
| HashStringValue* bind=0; | |
| ulong limit=0; | |
| ulong offset=0; | ulong offset=0; |
| if(params->size()>2) { | if(params.count()>1) { |
| Value& offset_code=*static_cast<Value *>(params->get(2)); | Value& voptions=params.as_no_junction(1, "options must be hash, not code"); |
| // forcing (this limit param type) | if(voptions.is_defined() && !voptions.is_string()) |
| r.fail_if_junction_(false, offset_code, method_name, "offset must be expression"); | if(HashStringValue* options=voptions.get_hash()) { |
| offset=(ulong)r.process(offset_code).as_double(); | int valid_options=0; |
| if(Value* vbind=options->get(sql_bind_name)) { | |
| valid_options++; | |
| bind=vbind->get_hash(); | |
| } | |
| if(Value* vlimit=options->get(sql_limit_name)) { | |
| valid_options++; | |
| limit=(ulong)r.process_to_value(*vlimit).as_double(); | |
| } | |
| if(Value* voffset=options->get(sql_offset_name)) { | |
| valid_options++; | |
| offset=(ulong)r.process_to_value(*voffset).as_double(); | |
| } | |
| if(valid_options!=options->count()) | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "called with invalid option"); | |
| } else | |
| throw Exception(PARSER_RUNTIME, | |
| 0, | |
| "options must be hash"); | |
| } | } |
| const char *statement_cstr=statement.as_string().cstr(String::UL_SQL); | SQL_Driver::Placeholder* placeholders=0; |
| unsigned int sql_column_count; SQL_Driver::Cell *sql_columns; | uint placeholders_count=0; |
| unsigned long sql_row_count; SQL_Driver::Cell **sql_rows; | if(bind) |
| r.connection->query( | placeholders_count=marshal_binds(*bind, placeholders); |
| Temp_lang temp_lang(r, String::L_SQL); | |
| const String& statement_string=r.process_to_string(statement); | |
| const char* statement_cstr= | |
| statement_string.cstr(String::L_UNSPECIFIED, r.connection()); | |
| Table_sql_event_handlers handlers; | |
| #ifdef RESOURCES_DEBUG | |
| struct timeval mt[2]; | |
| //measure:before | |
| gettimeofday(&mt[0],NULL); | |
| #endif | |
| r.connection()->query( | |
| statement_cstr, | statement_cstr, |
| &sql_column_count, &sql_columns, | placeholders_count, placeholders, |
| &sql_row_count, &sql_rows); | offset, limit, |
| handlers, | |
| statement_string); | |
| Array& table_columns=*new(pool) Array(pool); | #ifdef RESOURCES_DEBUG |
| for(unsigned int i=0; i<sql_column_count; i++) { | //measure:after connect |
| String& table_column=*new(pool) String(pool); | gettimeofday(&mt[1],NULL); |
| table_column.APPEND_TAINTED( | |
| (const char *)sql_columns[i].ptr, sql_columns[i].size, | double t[2]; |
| statement_cstr, 0); | for(int i=0;i<2;i++) |
| table_columns+=&table_column; | t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0; |
| } | |
| r.sql_request_time+=t[1]-t[0]; | |
| #endif | |
| if(bind) | |
| unmarshal_bind_updates(*bind, placeholders_count, placeholders); | |
| Table& result= | |
| handlers.table?*handlers.table: // query resulted in table? return it | |
| *new Table(Table::columns_type(0)); // query returned no table, fake it | |
| Table& table=*new(pool) Table(pool, &method_name, &table_columns); | // replace any previous table value |
| GET_SELF(r, VTable).set_table(result); | |
| } | |
| { | static void _columns(Request& r, MethodParams&) { |
| for(unsigned long r=0; r<sql_row_count; r++) { | |
| SQL_Driver::Cell *sql_cells=sql_rows[r]; | Table::columns_type result_columns(new ArrayString); |
| Array& table_row=*new(pool) Array(pool); | *result_columns+=new String("column"); |
| Table& result_table=*new Table(result_columns); | |
| for(unsigned int i=0; i<sql_column_count; i++) { | |
| String& table_cell=*new(pool) String(pool); | Table& source_table=GET_SELF(r, VTable).table(); |
| table_cell.APPEND_TAINTED( | if(Table::columns_type source_columns=source_table.columns()) { |
| (const char *)sql_cells[i].ptr, sql_cells[i].size, | for(Array_iterator<const String*> i(*source_columns); i.has_next(); ) { |
| statement_cstr, r); | Table::element_type result_row(new ArrayString); |
| table_row+=&table_cell; | *result_row+=i.next(); |
| } | result_table+=result_row; |
| table+=&table_row; | |
| } | } |
| } | } |
| // replace any previous table value | r.write_no_lang(*new VTable(&result_table)); |
| static_cast<VTable *>(r.self)->set_table(table); | |
| } | } |
| // initialize | static void _select(Request& r, MethodParams& params) { |
| Value& vcondition=params.as_expression(0, "condition must be number, bool or expression"); | |
| Table& source_table=GET_SELF(r, VTable).table(); | |
| Table& result_table=*new Table(source_table.columns()); | |
| void initialize_table_class(Pool& pool, VStateless_class& vclass) { | int saved_current=source_table.current(); |
| // ^table:set{data} | int size=source_table.count(); |
| // ^table:set[nameless]{data} | for(int row=0; row<size; row++) { |
| vclass.add_native_method("set", Method::CT_DYNAMIC, _set, 1, 2); | source_table.set_current(row); |
| // ^table:load[file] | bool condition=r.process_to_value(vcondition, |
| // ^table:load[nameless;file] | false/*don't intercept string*/).as_bool(); |
| vclass.add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2); | |
| if(condition) // ...condition is true= | |
| result_table+=source_table[row]; // =green light to go to result | |
| } | |
| source_table.set_current(saved_current); | |
| r.write_no_lang(*new VTable(&result_table)); | |
| } | |
| // constructor | |
| MTable::MTable(): Methoded("table") { | |
| // ^table::create{data} | |
| // ^table::create[nameless]{data} | |
| // ^table::create[table] | |
| add_native_method("create", Method::CT_DYNAMIC, _create, 1, 2); | |
| // old name for compatibility with <= v 1.141 2002/01/25 11:33:45 paf | |
| add_native_method("set", Method::CT_DYNAMIC, _create, 1, 2); | |
| // ^table::load[file] | |
| // ^table::load[nameless;file] | |
| add_native_method("load", Method::CT_DYNAMIC, _load, 1, 3); | |
| // ^table.save[file] | // ^table.save[file] |
| // ^table.save[nameless;file] | // ^table.save[nameless;file] |
| vclass.add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2); | add_native_method("save", Method::CT_DYNAMIC, _save, 1, 3); |
| // add_native_method("save_old", Method::CT_DYNAMIC, _save_old, 1, 3); | |
| // ^table.count[] | // ^table.count[] |
| vclass.add_native_method("count", Method::CT_DYNAMIC, _count, 0, 0); | add_native_method("count", Method::CT_DYNAMIC, _count, 0, 0); |
| // ^table.line[] | // ^table.line[] |
| vclass.add_native_method("line", Method::CT_DYNAMIC, _line, 0, 0); | add_native_method("line", Method::CT_DYNAMIC, _line, 0, 0); |
| // ^table.offset[] | // ^table.offset[] |
| // ^table.offset[offset] | // ^table.offset(offset) |
| vclass.add_native_method("offset", Method::CT_DYNAMIC, _offset, 0, 1); | // ^table.offset[cur|set](offset) |
| add_native_method("offset", Method::CT_DYNAMIC, _offset, 0, 2); | |
| // ^table.menu{code} | // ^table.menu{code} |
| // ^table.menu{code}[delim] | // ^table.menu{code}[delim] |
| vclass.add_native_method("menu", Method::CT_DYNAMIC, _menu, 1, 2); | add_native_method("menu", Method::CT_DYNAMIC, _menu, 1, 2); |
| // ^table.empty{code-when-empty} | // ^table:hash[key field name] |
| // ^table.empty{code-when-empty}{code-when-not} | // ^table:hash[key field name][value field name(s) string/table] |
| vclass.add_native_method("empty", Method::CT_DYNAMIC, _empty, 1, 2); | add_native_method("hash", Method::CT_DYNAMIC, _hash, 1, 3); |
| // ^table.record[] | // ^table.sort{string-key-maker} ^table.sort{string-key-maker}[desc|asc] |
| vclass.add_native_method("record", Method::CT_DYNAMIC, _record, 0, 0); | // ^table.sort(numeric-key-maker) ^table.sort(numeric-key-maker)[desc|asc] |
| add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2); | |
| // ^table.sort{string-key-maker} ^table.sort{string-key-maker}[asc|desc] | |
| // ^table.sort(numeric-key-maker) ^table.sort(numeric-key-maker)[asc|desc] | |
| vclass.add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2); | |
| // ^table.locate[field;value] | // ^table.locate[field;value] |
| vclass.add_native_method("locate", Method::CT_DYNAMIC, _locate, 2, 2); | add_native_method("locate", Method::CT_DYNAMIC, _locate, 1, 3); |
| // ^table.found{when-found} | |
| // ^table.found{when-found}{when-not-found} | |
| vclass.add_native_method("found", Method::CT_DYNAMIC, _found, 1, 2); | |
| // ^table.flip[] | // ^table.flip[] |
| vclass.add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0); | add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0); |
| // ^table.append{r{tab}e{tab}c{tab}o{tab}r{tab}d} | // ^table.append{r{tab}e{tab}c{tab}o{tab}r{tab}d} |
| vclass.add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1); | add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1); |
| // ^table.join[table][$.limit(10) $.offset(1) $.offset[cur] ] | |
| add_native_method("join", Method::CT_DYNAMIC, _join, 1, 2); | |
| // ^table.join[table] | // ^table:sql[query] |
| vclass.add_native_method("join", Method::CT_DYNAMIC, _join, 1, 1); | // ^table:sql[query][$.limit(1) $.offset(2)] |
| add_native_method("sql", Method::CT_DYNAMIC, _sql, 1, 2); | |
| // ^table:columns[] | |
| add_native_method("columns", Method::CT_DYNAMIC, _columns, 0, 0); | |
| // ^table:sql[query][(count[;offset])] | // ^table.select(expression) = table |
| vclass.add_native_method("sql", Method::CT_DYNAMIC, _sql, 1, 3); | add_native_method("select", Method::CT_DYNAMIC, _select, 1, 1); |
| } | } |