--- parser3/src/classes/string.C 2001/05/07 13:29:47 1.45 +++ parser3/src/classes/string.C 2001/06/28 07:41:59 1.57 @@ -5,8 +5,9 @@ Author: Alexander Petrosyan (http://design.ru/paf) - $Id: string.C,v 1.45 2001/05/07 13:29:47 paf Exp $ + $Id: string.C,v 1.57 2001/06/28 07:41:59 parser Exp $ */ +static char *RCSId="$Id: string.C,v 1.57 2001/06/28 07:41:59 parser Exp $"; #include "classes.h" #include "pa_request.h" @@ -15,6 +16,7 @@ #include "pa_vtable.h" #include "pa_vbool.h" #include "pa_string.h" +#include "pa_sql_connection.h" // defines @@ -26,27 +28,30 @@ class MString : public Methoded { public: MString(Pool& pool); public: // Methoded - bool used_directly() { return false; } + bool used_directly() { return true; } }; // methods -static void _length(Request& r, const String&, MethodParams *) { +static void _length(Request& r, const String& method_name, MethodParams *) { Pool& pool=r.pool(); - Value& value=*new(pool) VDouble(pool, r.self->get_string()->size()); - r.write_no_lang(value); + Value& result=*new(pool) VDouble(pool, r.self->get_string()->size()); + result.set_name(method_name); + r.write_no_lang(result); } -static void _int(Request& r, const String&, MethodParams *) { +static void _int(Request& r, const String& method_name, MethodParams *) { Pool& pool=r.pool(); - Value& value=*new(pool) VInt(pool, (int)r.self->as_double()); - r.write_no_lang(value); + Value& result=*new(pool) VInt(pool, r.self->as_int()); + result.set_name(method_name); + r.write_no_lang(result); } -static void _double(Request& r, const String&, MethodParams *) { +static void _double(Request& r, const String& method_name, MethodParams *) { Pool& pool=r.pool(); - Value& value=*new(pool) VDouble(pool, r.self->as_double()); - r.write_no_lang(value); + Value& result=*new(pool) VDouble(pool, r.self->as_double()); + result.set_name(method_name); + r.write_no_lang(result); } /*not static*/void _string_format(Request& r, const String& method_name, MethodParams *params) { @@ -156,7 +161,7 @@ static void replace_action(Table& table, // piece from last match['start'] to beginning of this match['finish'] if(start!=finish) *ai.dest << ai.src->mid(start, finish);//ai.dest->APPEND_CONST("-"); - // store found parts in one-record Vtable + // store found parts in one-record VTable if(table.size()) // middle table.put(0, row); else // begin @@ -166,7 +171,8 @@ static void replace_action(Table& table, vtable.set_name(*ai.origin); Junction *junction=ai.replacement_code->get_junction(); - junction->rcontext=junction->root=&vtable; + junction->rcontext=/*must be some way to get to + outside world junction->root=*/&vtable; Value& replaced=ai.request->process(*ai.replacement_code, ai.origin, false); /* @@ -181,10 +187,7 @@ static void replace_action(Table& table, *ai.dest << *ai.post_match; } -/** search/replace - ^string.match[regexp][options] - ^string.match[regexp][options]{replacement-code} -*/ +/// @todo use pcre:study somehow static void _match(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); const String& src=*static_cast(r.self)->get_string(); @@ -233,6 +236,86 @@ static void _match(Request& r, const Str r.write_assign_lang(*result); } +static void change_case(Request& r, const String& method_name, MethodParams *params, + String::Change_case_kind kind) { + Pool& pool=r.pool(); + const String& src=*static_cast(r.self)->get_string(); + + r.write_assign_lang(*new(pool) VString(src.change_case(pool, r.pcre_tables, + kind))); +} +static void _upper(Request& r, const String& method_name, MethodParams *params) { + change_case(r, method_name, params, String::CC_UPPER); +} +static void _lower(Request& r, const String& method_name, MethodParams *params) { + change_case(r, method_name, params, String::CC_LOWER); +} + +String& sql_result_string(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + + if(!r.connection) + PTHROW(0, 0, + &method_name, + "without connect"); + + Value& statement=params->get_junction(0, "statement must be code"); + + ulong offset=0; + if(params->size()>1) { + Value& offset_code=params->get_junction(1, "offset must be expression"); + offset=(ulong)r.process(offset_code).as_double(); + } + + Temp_lang temp_lang(r, String::UL_SQL); + const String& statement_string=r.process(statement).as_string(); + const char *statement_cstr= + statement_string.cstr(String::UL_UNSPECIFIED, r.connection); + unsigned int sql_column_count; SQL_Driver::Cell *sql_columns; + unsigned long sql_row_count; SQL_Driver::Cell **sql_rows; + bool need_rethrow=false; Exception rethrow_me; + PTRY { + r.connection->query( + statement_cstr, offset, 0, + &sql_column_count, &sql_columns, + &sql_row_count, &sql_rows); + } + PCATCH(e) { // query problem + rethrow_me=e; need_rethrow=true; + } + PEND_CATCH + if(need_rethrow) + PTHROW(rethrow_me.type(), rethrow_me.code(), + &statement_string, // setting more specific source [were url] + rethrow_me.comment()); + + if(sql_column_count!=1) + PTHROW(0, 0, + &statement_string, + "result must contain exactly one column"); + + if(sql_row_count!=1) + PTHROW(0, 0, + &statement_string, + "result must contain exactly one row"); + + String& result=*new(pool) String(pool); + SQL_Driver::Cell& cell=sql_rows[0][0]; + result.APPEND_TAINTED( + (const char *)cell.ptr, cell.size, + statement_cstr, 0); + + return result; +} + +static void _sql(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + + VString& result=*new(pool) VString(sql_result_string(r, method_name, params)); + result.set_name(method_name); + r.write_assign_lang(result); +} + // constructor MString::MString(Pool& apool) : Methoded(apool) { @@ -269,6 +352,15 @@ MString::MString(Pool& apool) : Methoded // ^string.match[regexp][options] // ^string.match[regexp][options]{replacement-code} add_native_method("match", Method::CT_DYNAMIC, _match, 1, 3); + + // ^string.toupper[] + add_native_method("upper", Method::CT_DYNAMIC, _upper, 0, 0); + // ^string.tolower[] + add_native_method("lower", Method::CT_DYNAMIC, _lower, 0, 0); + + // ^string:sql[query] + // ^string:sql[query](offset) + add_native_method("sql", Method::CT_STATIC, _sql, 1, 2); } // global variable