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| version 1.173, 2003/04/04 13:44:59 | version 1.232, 2007/08/20 10:07:36 |
|---|---|
| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b table parser class. | Parser: @b table parser class. |
| Copyright (c) 2001, 2003 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: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| */ | */ |
| static const char* IDENT_TABLE_C="$Date$"; | static const char * const IDENT_TABLE_C="$Date$"; |
| #include <sstream> | |
| using namespace std; | |
| #include "classes.h" | #include "classes.h" |
| #include "pa_vmethod_frame.h" | |
| #include "pa_common.h" | #include "pa_common.h" |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_vtable.h" | #include "pa_vtable.h" |
| Line 17 static const char* IDENT_TABLE_C="$Date$ | Line 22 static const char* IDENT_TABLE_C="$Date$ |
| // class | // class |
| class MTable : public Methoded { | class MTable: public Methoded { |
| public: // VStateless_class | public: // VStateless_class |
| Value *create_new_value(Pool& pool) { return new(pool) VTable(pool); } | Value* create_new_value(Pool&, HashStringValue&) { return new VTable(); } |
| public: | public: |
| MTable(Pool& pool); | MTable(); |
| public: // Methoded | public: // Methoded |
| bool used_directly() { return true; } | bool used_directly() { return true; } |
| }; | }; |
| // methods | // global variable |
| static void get_copy_options(Request& r, const String& method_name, MethodParams *params, int param_index, | DECLARE_CLASS_VAR(table, new MTable, 0); |
| const Table& source, | |
| int& offset, | |
| int& limit) { | |
| offset=0; | |
| limit=0; | |
| if(params->size()<=param_index) | |
| return; | |
| Value& voptions=params->as_no_junction(param_index, "options must be hash, not code"); | // externs |
| if(!voptions.is_string()) { | |
| if(Hash *options=voptions.get_hash(&method_name)) { | extern String cycle_data_name; |
| int valid_options=0; | |
| if(Value *voffset=(Value *)options->get(*sql_offset_name)) { | // defines for globals |
| valid_options++; | |
| if(voffset->is_string()) { | #define SQL_BIND_NAME "bind" |
| const String& soffset=*voffset->get_string(); | #define SQL_DEFAULT_NAME "default" |
| if(soffset == "cur") | #define SQL_DISTINCT_NAME "distinct" |
| offset=source.current(); | #define SQL_VALUE_TYPE_NAME "type" |
| else | #define TABLE_REVERSE_NAME "reverse" |
| throw Exception("parser.runtime", | |
| &soffset, | |
| "must be 'cur' string or expression"); | // globals |
| } else | |
| offset=r.process_to_value(*voffset).as_int(); | String sql_bind_name(SQL_BIND_NAME); |
| } | String sql_limit_name(PA_SQL_LIMIT_NAME); |
| if(Value *vlimit=(Value *)options->get(*sql_limit_name)) { | String sql_offset_name(PA_SQL_OFFSET_NAME); |
| valid_options++; | String sql_default_name(SQL_DEFAULT_NAME); |
| limit=r.process_to_value(*vlimit).as_int(); | String sql_distinct_name(SQL_DISTINCT_NAME); |
| } | String sql_value_type_name(SQL_VALUE_TYPE_NAME); |
| if(valid_options!=options->size()) | String table_reverse_name(TABLE_REVERSE_NAME); |
| throw Exception("parser.runtime", | |
| &method_name, | // methods |
| "called with invalid option"); | |
| } else | static Table::Action_options get_action_options(Request& r, MethodParams& params, |
| throw Exception("parser.runtime", | const Table& source) { |
| &method_name, | Table::Action_options result; |
| "options must be hash"); | 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(!limit) // zero limit = sould be 'nothing to copy', for methods zero means 'all' | if(Value* vlimit=options->get(sql_limit_name)) { |
| limit=-1; // thus fixing | 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, const String& method_name, MethodParams *params) { | static void _create(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | |
| // clone/copy part? | // clone/copy part? |
| if(const Table *source=params->get(0).get_table()) { | if(Table *source=params[0].get_table()) { |
| int offset, limit; | Table::Action_options o=get_action_options(r, params, *source); |
| get_copy_options(r, method_name, params, 1, *source, | check_option_param(o.defined, params, 1, |
| offset, limit); | "too many parameters"); |
| static_cast<VTable *>(r.get_self())->set_table(*new(pool) Table(pool, *source, offset, limit)); | GET_SELF(r, VTable).set_table(*new Table(*source, o)); |
| return; | return; |
| } | } |
| // data is last parameter | // data is last parameter |
| Temp_lang temp_lang(r, String::UL_PASS_APPENDED); | Temp_lang temp_lang(r, String::L_PASS_APPENDED); |
| const String& data= | const String& data= |
| r.process_to_string(params->as_junction(params->size()-1, "body must be code")); | 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_AS_IS, 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_AS_IS); | 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_AS_IS); | ArrayString rows; |
| Array_iter i(rows); | data.split(rows, raw_pos_after, "\n", String::L_AS_IS); |
| Array_iterator<const String*> i(rows); | |
| while(i.has_next()) { | while(i.has_next()) { |
| Array& row=*new(pool) Array(pool); | Table::element_type row(new ArrayString); |
| const String& string=*i.next_string(); | const String& string=*i.next(); |
| // remove comment lines | // remove comment lines |
| if(!string.size()) | if(!string.length()) |
| continue; | continue; |
| string.split(row, 0, "\t", 1, String::UL_AS_IS); | 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.get_self())->set_table(table); | GET_SELF(r, VTable).set_table(table); |
| } | } |
| static void _load(Request& r, const String& method_name, MethodParams *params) { | struct lsplit_result { |
| Pool& pool=r.pool(); | char* piece; |
| const String& first_param=params->as_string(0, "file name must be string"); | 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 lsplit_result lsplit(char** string_ref, char delim1, char delim2, char encloser) { | |
| lsplit_result result; | |
| if(char* string=*string_ref) { | |
| if(encloser && *string==encloser) { | |
| string++; | |
| 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; | int filename_param_index=0; |
| bool nameless=first_param=="nameless"; | bool nameless=first_param=="nameless"; |
| if(nameless) | if(nameless) |
| filename_param_index++; | filename_param_index++; |
| int options_param_index=filename_param_index+1; | 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, | char *data=file_read_text(r.charsets, |
| r.absolute(params->as_string(filename_param_index, "file name must be string")), | r.absolute(params.as_string(filename_param_index, FILE_NAME_MUST_BE_STRING)), |
| true, | true, |
| options_param_index<params->size()?params->as_no_junction(options_param_index, "additional params must be hash").get_hash(&method_name):0 | options |
| ); | ); |
| // parse columns | // parse columns |
| Array *columns; | Table::columns_type columns; |
| #ifndef NO_STRING_ORIGIN | |
| const Origin& origin=method_name.origin(); | |
| const char *file=origin.file; | |
| uint line=origin.line; | |
| #endif | |
| if(nameless) { | if(nameless) { |
| columns=0; // nameless | columns=Table::columns_type(0); // nameless |
| } else { | } else { |
| columns=new(pool) Array(pool); | columns=Table::columns_type(new ArrayString); |
| while(char *row_chars=getrow(&data)) { | skip_empty_and_comment_lines(&data); |
| // remove empty&comment lines | while( lsplit_result sr=lsplit(&data, separators.column, '\n', separators.encloser) ) { |
| if(!*row_chars || *row_chars == '#') | *columns+=new String(sr.piece, 0, true); |
| continue; | if(sr.delim=='\n') |
| do { | break; |
| String *name=new(pool) String(pool); | |
| name->APPEND_TAINTED(lsplit(&row_chars, '\t'), 0, file, line++); | |
| *columns+=name; | |
| } while(row_chars); | |
| break; | |
| } | } |
| } | } |
| 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) ) { |
| // remove empty&comment lines | if(!*sr.piece && !sr.delim && !row->count()) // append last empty column [if without \n] |
| if(!*row_chars || *row_chars == '#') | break; |
| continue; | *row+=new String(sr.piece, 0, true); |
| Array *row=new(pool) Array(pool); | if(sr.delim=='\n') { |
| while(char *cell_chars=lsplit(&row_chars, '\t')) { | table+=row; |
| String *cell=new(pool) String(pool); | row=new ArrayString(columns_count); |
| cell->APPEND_TAINTED(cell_chars, 0, file, line); | skip_empty_and_comment_lines(&data); |
| *row+=cell; | |
| } | } |
| #ifndef NO_STRING_ORIGIN | } |
| line++; | // last line [if without \n] |
| #endif | if(row->count()) |
| table+=row; | table+=row; |
| }; | |
| // replace any previous table value | // replace any previous table value |
| static_cast<VTable *>(r.get_self())->set_table(table); | GET_SELF(r, VTable).set_table(table); |
| } | } |
| /// @todo "x\nx" "xxx""xx" | void maybe_enclose( String& to, const String& from, char encloser, const String* sencloser ) { |
| static void _save(Request& r, const String& method_name, MethodParams *params) { | if(encloser) { |
| Pool& pool=r.pool(); | to<<*sencloser; |
| Value& vfile_name=params->as_no_junction(params->size()-1, | // while we have 'encloser'... |
| "file name must not be code"); | 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); | |
| to<<*sencloser; // doubling encloser | |
| } | |
| // last piece | |
| size_t from_length=from.length(); | |
| if(pos_after<from_length) | |
| to<<from.mid(pos_after, from_length); | |
| Table& table=static_cast<VTable *>(r.get_self())->table(&method_name); | 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 do_append=false; |
| String sdata(pool); | bool output_column_names=true; |
| if(params->size()==1) { // named output | |
| // write out names line | // 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(); | |
| String sdata; | |
| if(output_column_names) { | |
| if(table.columns()) { // named table | if(table.columns()) { // named table |
| Array_iter i(*table.columns()); | for(Array_iterator<const String*> i(*table.columns()); i.has_next(); ) { |
| while(i.has_next()) { | maybe_enclose( sdata, *i.next(), separators.encloser, separators.sencloser ); |
| sdata.append(*i.next_string(), //*static_cast<String *>(table.columns()->quick_get(column)), | |
| String::UL_TABLE); | |
| if(i.has_next()) | if(i.has_next()) |
| sdata.APPEND_CONST("\t"); | sdata<<*separators.scolumn; |
| } | } |
| } else { // nameless table | } else { // nameless table [we were asked to output column names] |
| if(int lsize=table.size()?static_cast<Array *>(table.get(0))->size():0) | if(int lsize=table.count()?table[0]->count():0) |
| for(int column=0; column<lsize; column++) { | for(int column=0; column<lsize; column++) { |
| char *cindex_tab=(char *)pool.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); |
| } else { // mode specified | |
| const String& mode=params->as_string(0, "mode must be string"); | |
| if(mode=="append") | |
| do_append=true; | |
| else if(mode=="nameless") | |
| /*ok, already skipped names output*/; | |
| else | |
| throw Exception("parser.runtime", | |
| &mode, | |
| "unknown mode, must be 'append'"); | |
| } | } |
| // data lines | // data lines |
| Array_iter i(table); | Array_iterator<ArrayString*> i(table); |
| while(i.has_next()) { | while(i.has_next()) { |
| Array_iter c(*static_cast<Array *>(i.next())); | for(Array_iterator<const String*> c(*i.next()); c.has_next(); ) { |
| while(c.has_next()) { | maybe_enclose( sdata, *c.next(), separators.encloser, separators.sencloser ); |
| if(const String *s=c.next_string()) | |
| sdata.append(*s, | |
| String::UL_TABLE); | |
| if(c.has_next()) | if(c.has_next()) |
| sdata.APPEND_CONST("\t"); | sdata<<*separators.scolumn; |
| } | } |
| sdata.APPEND_CONST("\n"); | sdata.append_know_length("\n", 1, String::L_CLEAN); |
| } | } |
| // write | // write |
| file_write(r.absolute(vfile_name.as_string()), | { |
| sdata.cstr(), sdata.size(), 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 _count(Request& r, const String& method_name, MethodParams *) { | static void _save(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | const String& first_arg=params.as_string(0, "first argument must not be code"); |
| int result=static_cast<VTable *>(r.get_self())->table(&method_name).size(); | size_t param_index=1; |
| r.write_no_lang(*new(pool) VInt(pool, result)); | |
| 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; | |
| } | |
| ost<<'\n'; | |
| } | |
| // write | |
| { | |
| 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, MethodParams&) { | |
| int result=GET_SELF(r, VTable).table().count(); | |
| r.write_no_lang(*new VInt(result)); | |
| } | } |
| static void _line(Request& r, const String& method_name, MethodParams *) { | static void _line(Request& r, MethodParams&) { |
| Pool& pool=r.pool(); | int result=1+GET_SELF(r, VTable).table().current(); |
| int result=1+static_cast<VTable *>(r.get_self())->table(&method_name).current(); | r.write_no_lang(*new VInt(result)); |
| r.write_no_lang(*new(pool) VInt(pool, result)); | |
| } | } |
| static void _offset(Request& r, const String& method_name, MethodParams *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.get_self())->table(&method_name); | if(params.count()) { |
| if(params->size()) { | |
| bool absolute=false; | bool absolute=false; |
| if(params->size()>1) { | if(params.count()>1) { |
| const String& whence=params->as_string(0, "whence must be string"); | const String& whence=params.as_string(0, "whence must be string"); |
| if(whence=="cur") | if(whence=="cur") |
| absolute=false; | absolute=false; |
| else if(whence=="set") | else if(whence=="set") |
| absolute=true; | absolute=true; |
| else | else |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| &whence, | &whence, |
| "is invalid whence, valid are 'cur' or 'set'"); | "is invalid whence, valid are 'cur' or 'set'"); |
| } | } |
| Value& offset_expr=params->as_junction(params->size()-1, "offset must be expression"); | int offset=params.as_int(params.count()-1, "offset must be expression", r); |
| table.offset(absolute, r.process_to_value(offset_expr).as_int()); | table.offset(absolute, offset); |
| } else | } else |
| r.write_no_lang(*new(pool) VInt(pool, table.current())); | r.write_no_lang(*new VInt(table.current())); |
| } | } |
| static void _menu(Request& r, const String& method_name, MethodParams *params) { | static void _menu(Request& r, MethodParams& params) { |
| Value& body_code=params->as_junction(0, "body must be code"); | Temp_hash_value<const String::Body, void*> |
| 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->size()>1?¶ms->get(1):0; | Value* delim_maybe_code=params.count()>1?¶ms[1]:0; |
| Table& table=static_cast<VTable *>(r.get_self())->table(&method_name); | 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(); |
| int size=table.size(); | int size=table.count(); |
| for(int row=0; row<size; row++) { | for(int row=0; row<size; row++) { |
| table.set_current(row); | table.set_current(row); |
| StringOrValue sv_processed=r.process(body_code); | StringOrValue sv_processed=r.process(body_code); |
| const String *s_processed=sv_processed.get_string(); | Request::Skip lskip=r.get_skip(); r.set_skip(Request::SKIP_NOTHING); |
| if(delim_maybe_code && s_processed && s_processed->size()) { // delimiter set and we have body | 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? | if(need_delim) // need delim & iteration produced string? |
| r.write_pass_lang(r.process(*delim_maybe_code)); | r.write_pass_lang(r.process(*delim_maybe_code)); |
| need_delim=true; | need_delim=true; |
| } | } |
| r.write_pass_lang(sv_processed); | r.write_pass_lang(sv_processed); |
| if(lskip==Request::SKIP_BREAK) | |
| break; | |
| } | } |
| table.set_current(saved_current); | table.set_current(saved_current); |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| enum Table2hash_distint { D_ILLEGAL, D_FIRST }; | |
| enum Table2hash_value_type { C_HASH, C_STRING, C_TABLE }; | |
| struct Row_info { | struct Row_info { |
| Request *r; | Request *r; |
| Table *table; | Table *table; |
| Value *key_code; | Value* key_code; |
| int key_field; | size_t key_field; |
| Array *value_fields; | Array<int>* value_fields; |
| Hash *hash; | HashStringValue* hash; |
| bool distinct; | Table2hash_distint distinct; |
| int row; | size_t row; |
| Table2hash_value_type value_type; | |
| }; | }; |
| #endif | #endif |
| static void table_row_to_hash(Array::Item *value, void *info) { | static void table_row_to_hash(Table::element_type row, Row_info *info) { |
| Array& row=*static_cast<Array *>(value); | const String* key; |
| Row_info& ri=*static_cast<Row_info *>(info); | if(info->key_code) { |
| Pool& pool=ri.table->pool(); | info->table->set_current(info->row++); // change context row |
| StringOrValue sv_processed=info->r->process(*info->key_code); | |
| const String *key; | |
| if(ri.key_code) { | |
| ri.table->set_current(ri.row++); // change context row | |
| StringOrValue sv_processed=ri.r->process(*ri.key_code); | |
| key=&sv_processed.as_string(); | key=&sv_processed.as_string(); |
| } else | } else { |
| key=ri.key_field<row.size()?row.get_string(ri.key_field):0; | key=info->key_field<row->count()?row->get(info->key_field):0; |
| } | |
| if(!key) | if(!key) |
| return; // ignore rows without key [too-short-record_array if-indexed] | return; // ignore rows without key [too-short-record_array if-indexed] |
| VHash& result=*new(pool) VHash(pool); | bool exist = false; |
| Hash& hash=*result.get_hash(0); | switch (info->value_type) { |
| for(int i=0; i<ri.value_fields->size(); i++) { | case C_STRING: |
| int value_field=ri.value_fields->get_int(i); | { |
| if(value_field<row.size()) | exist=info->hash->put_dont_replace(*key, new VString(*row->get(info->value_fields->get(0)))); |
| hash.put( | } |
| *ri.table->columns()->get_string(value_field), | break; |
| new(pool) VString(*row.get_string(value_field))); | case C_HASH: |
| } | { |
| VHash* vhash=new VHash; | |
| if(ri.hash->put_dont_replace(*key, &result)) // put. existed? | HashStringValue& hash=vhash->hash(); |
| if(!ri.distinct) | for(Array_iterator<int> i(*info->value_fields); i.has_next(); ) { |
| throw Exception("parser.runtime", | size_t value_field=i.next(); |
| key, | if(value_field<row->count()) |
| "duplicate key"); | hash.put( |
| } | *info->table->columns()->get(value_field), |
| static void _hash(Request& r, const String& method_name, MethodParams *params) { | new VString(*row->get(value_field))); |
| Pool& pool=r.pool(); | } |
| Table& self_table=static_cast<VTable *>(r.get_self())->table(&method_name); | |
| Value& result=*new(pool) VHash(pool); | exist=info->hash->put_dont_replace(*key, vhash); |
| if(const Array *columns=self_table.columns()) | } |
| if(columns->size()>0) { | break; |
| bool distinct=false; | case C_TABLE: |
| int param_index=params->size()-1; | { |
| 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(param_index>0) { |
| if(Hash *options= | if(HashStringValue* options= |
| params->as_no_junction(param_index, "param must not be code").get_hash(0)) { | params.as_no_junction(param_index, "param must not be code").get_hash() |
| ){ | |
| --param_index; | --param_index; |
| int valid_options=0; | int valid_options=0; |
| if(Value *vdistinct=(Value *)options->get(*sql_distinct_name)) { | if(Value* vdistinct_code=options->get(sql_distinct_name)) { |
| valid_options++; | valid_options++; |
| distinct=r.process_to_value(*vdistinct).as_bool(); | 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(valid_options!=options->size()) | if(Value* vvalue_type_code=options->get(sql_value_type_name)) { |
| throw Exception("parser.runtime", | if(value_type==C_TABLE){ // $.distinct[tables] was specified |
| &method_name, | 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"); | "called with invalid option"); |
| } | } |
| } | } |
| if(param_index==2) // bad options param type | if(param_index==2) // bad options param type |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| &method_name, | 0, |
| "options must be hash"); | "options must be hash"); |
| Array value_fields(pool); | Array<int> value_fields; |
| if(param_index>0) { | if(param_index>0) { |
| Value& value_fields_param=params->as_no_junction(param_index, "value field(s) must not be code"); | 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()) { | if(value_fields_param.is_string()) { |
| value_fields+=self_table.column_name2index(value_fields_param.as_string(), true); | value_fields+=self_table.column_name2index( |
| } else if(Table *value_fields_table=value_fields_param.get_table()) { | *value_fields_param.get_string(), true); |
| for(int i=0; i<value_fields_table->size(); i++) { | } else if(Table* value_fields_table=value_fields_param.get_table()) { |
| const String& value_field_name= | for(Array_iterator<Table::element_type> i(*value_fields_table); |
| *static_cast<Array *>(value_fields_table->get(i))->get_string(0); | i.has_next(); ) { |
| value_fields+=self_table.column_name2index(value_field_name, true); | const String& value_field_name |
| =*i.next()->get(0); | |
| value_fields | |
| +=self_table.column_name2index(value_field_name, true); | |
| } | } |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| &method_name, | 0, |
| "value field(s) must be string or self_table" | "value field(s) must be string or table"); |
| ); | |
| } else { // by all columns, including key | } else { // by all columns, including key |
| for(int i=0; i<columns->size(); i++) | if(value_type==C_STRING) |
| value_fields+=i; | 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; | |
| } | } |
| Value& key_param=params->get(0); | if(value_type==C_STRING && value_fields.count()!=1) |
| Value *key_code=key_param.get_junction()?&key_param:0; | throw Exception(PARSER_RUNTIME, |
| int key_field=key_code?-1 | 0, |
| :self_table.column_name2index(key_param.as_string(), true); | "you can specify one value field with this $.type[]."); |
| Row_info row_info={&r, &self_table, key_code, key_field, &value_fields, result.get_hash(0), distinct}; | { |
| 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); | |
| int saved_current=self_table.current(); | result.extract_default(); |
| self_table.for_each(table_row_to_hash, &row_info); | } |
| self_table.set_current(saved_current); | |
| } | } |
| r.write_no_lang(result); | r.write_no_lang(result); |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| struct Table_seq_item { | struct Table_seq_item { |
| Array *row; | ArrayString* row; |
| union { | union { |
| char *c_str; | const char *c_str; |
| double d; | double d; |
| } value; | } value; |
| }; | }; |
| Line 441 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, MethodParams *params) { | static void _sort(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | Value& key_maker=params.as_junction(0, "key-maker must be code"); |
| Value& key_maker=params->as_junction(0, "key-maker must be code"); | |
| bool reverse=params->size()>1/*..[desc|asc|]*/? | bool reverse=params.count()>1/*..[desc|asc|]*/? |
| reverse=params->as_no_junction(1, "order must not be code").as_string()=="desc": | reverse=params.as_no_junction(1, "order must not be code").as_string()=="desc": |
| false; // default=asc | false; // default=asc |
| Table& old_table=static_cast<VTable *>(r.get_self())->table(&method_name); | Table& old_table=GET_SELF(r, VTable).table(); |
| if(old_table.size()==0) | Table& new_table=*new Table(old_table.columns()); |
| return; | |
| Table& new_table=*new(pool) Table(pool, &method_name, old_table.columns()); | |
| Table_seq_item *seq=(Table_seq_item *)pool.malloc(sizeof(Table_seq_item)*old_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<old_table.size(); i++) { | int old_count=old_table.count(); |
| for(i=0; i<old_count; i++) { | |
| old_table.set_current(i); | old_table.set_current(i); |
| // calculate key value | // calculate key value |
| seq[i].row=(MethodParams *)old_table.get(i); | seq[i].row=old_table[i]; |
| Value& value=*r.process_to_value(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 474 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, old_table.size(), sizeof(Table_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<old_table.size(); i++) | for(i=0; i<old_count; i++) |
| new_table+=seq[reverse?old_table.size()-1-i:i].row; | new_table+=Table::element_type(seq[reverse?old_count-1-i:i].row); |
| delete[] seq; | |
| // replace any previous table value | // replace any previous table value |
| static_cast<VTable *>(r.get_self())->set_table(new_table); | GET_SELF(r, VTable).set_table(new_table); |
| } | } |
| static bool _locate_expression(Request& r, const String& method_name, MethodParams *params) { | #ifndef DOXYGEN |
| if(params->size()>1) | struct Expression_is_true_info { |
| throw Exception("parser.runtime", | Request* r; |
| &method_name, | Value* expression_code; |
| "locate by expression has only one parameter - expression"); | }; |
| #endif | |
| Value& expression_code=params->as_junction(0, "must be expression"); | static bool expression_is_true(Table&, Expression_is_true_info* info) { |
| return info->r->process_to_value(*info->expression_code).as_bool(); | |
| Table& table=static_cast<VTable *>(r.get_self())->table(&method_name); | |
| int saved_current=table.current(); | |
| int size=table.size(); | |
| for(int row=0; row<size; row++) { | |
| table.set_current(row); | |
| if(r.process_to_value(expression_code).as_bool()) | |
| return true; | |
| } | |
| table.set_current(saved_current); | |
| return false; | |
| } | } |
| static bool _locate_name_value(Request& r, const String& method_name, MethodParams *params) { | static bool _locate_expression(Table& table, Table::Action_options o, |
| if(params->size()>2) | Request& r, MethodParams& params) { |
| throw Exception("parser.runtime", | check_option_param(o.defined, params, 1, |
| &method_name, | "locate by expression only has parameters: expression and, maybe, options"); |
| "locate by name and value has only two parameters - name and value"); | Value& expression_code=params.as_junction(0, "must be expression"); |
| Table& table=static_cast<VTable *>(r.get_self())->table(&method_name); | Expression_is_true_info info={&r, &expression_code}; |
| return table.locate( | return table.table_first_that(expression_is_true, &info, o); |
| params->as_string(0, "column name must be string"), | } |
| params->as_string(1, "value must be string") | static bool _locate_name_value(Table& table, Table::Action_options o, |
| ); | Request&, MethodParams& params) { |
| check_option_param(o.defined, params, 2, | |
| "locate by locate by name has parameters: name, value and, maybe, options"); | |
| const String& name=params.as_string(0, "column name must be string"); | |
| const String& value=params.as_string(1, VALUE_MUST_BE_STRING); | |
| return table.locate(name, value, o); | |
| } | |
| static void _locate(Request& r, MethodParams& params) { | |
| 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 _locate(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| bool result=params->get(0).get_junction()? | static void _flip(Request& r, MethodParams&) { |
| _locate_expression(r, method_name, params) : | Table& old_table=GET_SELF(r, VTable).table(); |
| _locate_name_value(r, method_name, params); | Table& new_table=*new Table(0); |
| r.write_no_lang(*new(pool) VBool(pool, result)); | 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++) { | |
| static void _flip(Request& r, const String& method_name, MethodParams *params) { | Table::element_type new_row(new ArrayString(old_count)); |
| Pool& pool=r.pool(); | for(size_t i=0; i<old_count; i++) { |
| Table& old_table=static_cast<VTable *>(r.get_self())->table(&method_name); | Table::element_type old_row=old_table[i]; |
| Table& new_table=*new(pool) Table(pool, &method_name, 0/*nameless*/); | *new_row+=column<old_row->count()?old_row->get(column):new String; |
| if(old_table.size()) | |
| if(int old_cols=old_table.at(0).size()) | |
| for(int column=0; column<old_cols; column++) { | |
| Array& new_row=*new(pool) Array(pool, old_table.size()); | |
| for(int i=0; i<old_table.size(); i++) { | |
| const Array& old_row=old_table.at(i); | |
| new_row+=column<old_row.size()?old_row.get(column):new(pool) String(pool); | |
| } | } |
| new_table+=&new_row; | new_table+=new_row; |
| } | } |
| r.write_no_lang(*new(pool) VTable(pool, &new_table)); | r.write_no_lang(*new VTable(&new_table)); |
| } | } |
| static void _append(Request& r, const String& method_name, MethodParams *params) { | static void _append(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | |
| // data | // data |
| Temp_lang temp_lang(r, String::UL_PASS_APPENDED); | Temp_lang temp_lang(r, String::L_PASS_APPENDED); |
| const String& string= | const String& string=r.process_to_string(params.as_junction(0, "body must be code")); |
| r.process_to_string(params->as_junction(0, "body must be code")); | |
| // parse cells | // parse cells |
| Array& row=*new(pool) Array(pool); | Table::element_type row=new ArrayString; |
| string.split(row, 0, "\t", 1, String::UL_AS_IS); | size_t pos_after=0; |
| string.split(*row, pos_after, "\t", String::L_AS_IS); | |
| static_cast<VTable *>(r.get_self())->table(&method_name)+=&row; | GET_SELF(r, VTable).table()+=row; |
| } | } |
| static void _join(Request& r, const String& method_name, MethodParams *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(); | |
| Table *maybe_src=params->as_no_junction(0, "table ref must not be code").get_table(); | Table::element_type dest_row(new ArrayString(dest_columns_count)); |
| for(size_t dest_column=0; dest_column<dest_columns_count; dest_column++) { | |
| const String* src_item=src.item(*dest_columns->get(dest_column)); | |
| *dest_row+=src_item?src_item:new String; | |
| } | |
| *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) |
| throw Exception("parser.runtime", | 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.get_self())->table(&method_name); | |
| 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) |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| &method_name, | 0, |
| "source and destination are same table"); | "source and destination are same table"); |
| int offset, limit; | if(dest.columns()) // dest is named |
| get_copy_options(r, method_name, params, 1, src, | src.table_for_each(join_named_row, &dest, o); |
| offset, limit); | else // dest is nameless |
| src.table_for_each(join_nameless_row, &dest, o); | |
| if(const Array *dest_columns=dest.columns()) { // dest is named | |
| int saved_src_current=src.current(); | |
| int m=src.size()-offset; | |
| if(!limit || limit>m) | |
| limit=m; | |
| int end=offset+limit; | |
| for(int src_row=offset; src_row<end; src_row++) { | |
| src.set_current(src_row); | |
| Array& dest_row=*new(pool) Array(pool); | |
| for(int dest_column=0; dest_column<dest_columns->size(); dest_column++) { | |
| const String *src_item=src.item(*dest_columns->get_string(dest_column)); | |
| dest_row+=src_item?src_item:new(pool) String(pool); | |
| } | |
| 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); | |
| } | |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| class Table_sql_event_handlers: public SQL_Driver_query_event_handlers { | class Table_sql_event_handlers: public SQL_Driver_query_event_handlers { |
| ArrayString& columns; | |
| int columns_count; | |
| ArrayString* row; | |
| public: | public: |
| Table_sql_event_handlers(Pool& apool, const String& amethod_name, | Table* table; |
| const String& astatement_string, const char *astatement_cstr) : | public: |
| pool(apool), | Table_sql_event_handlers() : |
| method_name(amethod_name), | columns(*new ArrayString), row(0), table(0) { |
| statement_string(astatement_string), | |
| statement_cstr(astatement_cstr), | |
| columns(*new(pool) Array(pool)), | |
| row(0), | |
| table(0) | |
| { | |
| } | } |
| bool add_column(SQL_Error& error, void *ptr, size_t size) { | bool add_column(SQL_Error& error, const char *str, size_t length) { |
| try { | try { |
| String *column=new(pool) String(pool); | columns+=new String(str, length, true); |
| column->APPEND_TAINTED( | |
| (const char *)ptr, size, | |
| statement_cstr, 0); | |
| columns+=column; | |
| return false; | return false; |
| } catch(...) { | } catch(...) { |
| error=SQL_Error("exception occured in Table_sql_event_handlers::add_column"); | error=SQL_Error("exception occured in Table_sql_event_handlers::add_column"); |
| Line 629 public: | Line 1045 public: |
| } | } |
| bool before_rows(SQL_Error& error) { | bool before_rows(SQL_Error& error) { |
| try { | try { |
| table=new(pool) Table(pool, &method_name, &columns); | table=new Table(&columns); |
| columns_count=columns.count(); | |
| return false; | return false; |
| } catch(...) { | } catch(...) { |
| error=SQL_Error("exception occured in Table_sql_event_handlers::before_rows"); | error=SQL_Error("exception occured in Table_sql_event_handlers::before_rows"); |
| Line 638 public: | Line 1055 public: |
| } | } |
| bool add_row(SQL_Error& error) { | bool add_row(SQL_Error& error) { |
| try { | try { |
| (*table)+=(row=new(pool) Array(pool)); | *table+=row=new ArrayString(columns_count); |
| return false; | return false; |
| } catch(...) { | } catch(...) { |
| error=SQL_Error("exception occured in Table_sql_event_handlers::add_row"); | error=SQL_Error("exception occured in Table_sql_event_handlers::add_row"); |
| return true; | return true; |
| } | } |
| } | } |
| bool add_row_cell(SQL_Error& error, void *ptr, size_t size) { | bool add_row_cell(SQL_Error& error, const char* str, size_t length) { |
| try { | try { |
| String *cell=new(pool) String(pool); | String& cell=*new String; |
| if(size) | if(length) |
| cell->APPEND_TAINTED( | cell.append_know_length(str, length, String::L_TAINTED); |
| (const char *)ptr, size, | *row+=&cell; |
| statement_cstr, table->size()-1); | |
| (*row)+=cell; | |
| return false; | return false; |
| } catch(...) { | } catch(...) { |
| error=SQL_Error("exception occured in Table_sql_event_handlers::add_row_cell"); | error=SQL_Error("exception occured in Table_sql_event_handlers::add_row_cell"); |
| return true; | return true; |
| } | } |
| } | } |
| private: | |
| Pool& pool; | |
| const String& method_name; | |
| const String& statement_string; const char *statement_cstr; | |
| Array& columns; | |
| Array *row; | |
| public: | |
| Table *table; | |
| }; | }; |
| #endif | #endif |
| static void _sql(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| Value& statement=params->as_junction(0, "statement must be code"); | 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 limit=0; |
| ulong offset=0; | ulong offset=0; |
| if(params->size()>1) { | if(params.count()>1) { |
| Value& voptions=params->as_no_junction(1, "options must be hash, not code"); | 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(Hash *options=voptions.get_hash(&method_name)) { | if(HashStringValue* options=voptions.get_hash()) { |
| int valid_options=0; | int valid_options=0; |
| if(Value *vlimit=(Value *)options->get(*sql_limit_name)) { | if(Value* vbind=options->get(sql_bind_name)) { |
| valid_options++; | |
| bind=vbind->get_hash(); | |
| } | |
| if(Value* vlimit=options->get(sql_limit_name)) { | |
| valid_options++; | valid_options++; |
| limit=(ulong)r.process_to_value(*vlimit).as_double(); | limit=(ulong)r.process_to_value(*vlimit).as_double(); |
| } | } |
| if(Value *voffset=(Value *)options->get(*sql_offset_name)) { | if(Value* voffset=options->get(sql_offset_name)) { |
| valid_options++; | valid_options++; |
| offset=(ulong)r.process_to_value(*voffset).as_double(); | offset=(ulong)r.process_to_value(*voffset).as_double(); |
| } | } |
| if(valid_options!=options->size()) | if(valid_options!=options->count()) |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| &method_name, | 0, |
| "called with invalid option"); | "called with invalid option"); |
| } else | } else |
| throw Exception("parser.runtime", | throw Exception(PARSER_RUNTIME, |
| &method_name, | 0, |
| "options must be hash"); | "options must be hash"); |
| } | } |
| Temp_lang temp_lang(r, String::UL_SQL); | SQL_Driver::Placeholder* placeholders=0; |
| const String& statement_string=r.process_to_string(statement); | uint placeholders_count=0; |
| const char *statement_cstr= | if(bind) |
| statement_string.cstr(String::UL_UNSPECIFIED, r.connection(&method_name)); | placeholders_count=marshal_binds(*bind, placeholders); |
| Table_sql_event_handlers handlers(pool, method_name, | |
| statement_string, statement_cstr); | 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 | #ifdef RESOURCES_DEBUG |
| struct timeval mt[2]; | struct timeval mt[2]; |
| //measure:before | //measure:before |
| gettimeofday(&mt[0],NULL); | gettimeofday(&mt[0],NULL); |
| #endif | #endif |
| r.connection(&method_name)->query( | r.connection()->query( |
| statement_cstr, offset, limit, | statement_cstr, |
| placeholders_count, placeholders, | |
| offset, limit, | |
| handlers, | handlers, |
| statement_string); | statement_string); |
| Line 727 static void _sql(Request& r, const Strin | Line 1183 static void _sql(Request& r, const Strin |
| r.sql_request_time+=t[1]-t[0]; | r.sql_request_time+=t[1]-t[0]; |
| #endif | #endif |
| Table *result= | if(bind) |
| handlers.table?handlers.table: // query resulted in table? return it | unmarshal_bind_updates(*bind, placeholders_count, placeholders); |
| new(pool) Table(pool, &method_name, 0); // query returned no table, fake it | |
| Table& result= | |
| handlers.table?*handlers.table: // query resulted in table? return it | |
| *new Table(Table::columns_type(0)); // query returned no table, fake it | |
| // replace any previous table value | // replace any previous table value |
| static_cast<VTable *>(r.get_self())->set_table(*result); | GET_SELF(r, VTable).set_table(result); |
| } | } |
| static void _columns(Request& r, const String& method_name, MethodParams *) { | static void _columns(Request& r, MethodParams&) { |
| Pool& pool=r.pool(); | |
| Array& result_columns=*new(pool) Array(pool); | Table::columns_type result_columns(new ArrayString); |
| result_columns+=new(pool) String(pool, "column"); | *result_columns+=new String("column"); |
| Table& result_table=*new(pool) Table(pool, &method_name, &result_columns); | Table& result_table=*new Table(result_columns); |
| Table& source_table=static_cast<VTable *>(r.get_self())->table(&method_name); | Table& source_table=GET_SELF(r, VTable).table(); |
| if(const Array *source_columns=source_table.columns()) { | if(Table::columns_type source_columns=source_table.columns()) { |
| Array_iter i(*source_columns); | for(Array_iterator<const String*> i(*source_columns); i.has_next(); ) { |
| while(i.has_next()) { | Table::element_type result_row(new ArrayString); |
| Array& result_row=*new(pool) Array(pool); | *result_row+=i.next(); |
| result_row+=i.next(); | result_table+=result_row; |
| result_table+=&result_row; | |
| } | } |
| } | } |
| r.write_no_lang(*new(pool) VTable(pool, &result_table)); | r.write_no_lang(*new VTable(&result_table)); |
| } | } |
| static void _select(Request& r, const String& method_name, MethodParams *params) { | static void _select(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | Value& vcondition=params.as_expression(0, "condition must be number, bool or expression"); |
| Value& vcondition=params->as_junction(0, "condition must be expression"); | |
| Table& source_table=static_cast<VTable *>(r.get_self())->table(&method_name); | Table& source_table=GET_SELF(r, VTable).table(); |
| Table& result_table=*new(pool) Table(pool, | Table& result_table=*new Table(source_table.columns()); |
| source_table.origin_string(), | |
| source_table.columns() | |
| ); | |
| int saved_current=source_table.current(); | int saved_current=source_table.current(); |
| int size=source_table.size(); | int size=source_table.count(); |
| for(int row=0; row<size; row++) { | for(int row=0; row<size; row++) { |
| source_table.set_current(row); | source_table.set_current(row); |
| bool condition=r.process_to_value(vcondition, | bool condition=r.process_to_value(vcondition, |
| /*0/*no name* /,*/ | |
| false/*don't intercept string*/).as_bool(); | false/*don't intercept string*/).as_bool(); |
| if(condition) // ...condition is true= | if(condition) // ...condition is true= |
| result_table+=&source_table.at(row); // =green light to go to result | result_table+=source_table[row]; // =green light to go to result |
| } | } |
| source_table.set_current(saved_current); | source_table.set_current(saved_current); |
| r.write_no_lang(*new(pool) VTable(pool, &result_table)); | r.write_no_lang(*new VTable(&result_table)); |
| } | } |
| // constructor | // constructor |
| MTable::MTable(Pool& apool) : Methoded(apool, "table") { | MTable::MTable(): Methoded("table") { |
| // ^table::create{data} | // ^table::create{data} |
| // ^table::create[nameless]{data} | // ^table::create[nameless]{data} |
| // ^table::create[table] | // ^table::create[table] |
| Line 799 MTable::MTable(Pool& apool) : Methoded(a | Line 1250 MTable::MTable(Pool& apool) : Methoded(a |
| // ^table.save[file] | // ^table.save[file] |
| // ^table.save[nameless;file] | // ^table.save[nameless;file] |
| 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[] |
| add_native_method("count", Method::CT_DYNAMIC, _count, 0, 0); | add_native_method("count", Method::CT_DYNAMIC, _count, 0, 0); |
| Line 825 MTable::MTable(Pool& apool) : Methoded(a | Line 1278 MTable::MTable(Pool& apool) : Methoded(a |
| add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2); | add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2); |
| // ^table.locate[field;value] | // ^table.locate[field;value] |
| add_native_method("locate", Method::CT_DYNAMIC, _locate, 1, 2); | add_native_method("locate", Method::CT_DYNAMIC, _locate, 1, 3); |
| // ^table.flip[] | // ^table.flip[] |
| add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0); | add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0); |
| Line 847 MTable::MTable(Pool& apool) : Methoded(a | Line 1300 MTable::MTable(Pool& apool) : Methoded(a |
| // ^table.select(expression) = table | // ^table.select(expression) = table |
| add_native_method("select", Method::CT_DYNAMIC, _select, 1, 1); | add_native_method("select", Method::CT_DYNAMIC, _select, 1, 1); |
| } | } |
| // global variable | |
| Methoded *table_class; | |
| // creator | |
| Methoded *MTable_create(Pool& pool) { | |
| return table_class=new(pool) MTable(pool); | |
| } |