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| version 1.78, 2001/10/09 07:06:00 | version 1.151, 2007/02/03 18:08:38 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: @b string parser class. | Parser: @b string parser class. |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2005 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru) |
| $Id$ | |
| */ | */ |
| static const char * const IDENT_STRING_C="$Date$"; | |
| #include "classes.h" | #include "classes.h" |
| #include "pa_vmethod_frame.h" | |
| #include "pa_request.h" | #include "pa_request.h" |
| #include "pa_vdouble.h" | #include "pa_vdouble.h" |
| #include "pa_vint.h" | #include "pa_vint.h" |
| Line 16 | Line 18 |
| #include "pa_string.h" | #include "pa_string.h" |
| #include "pa_sql_connection.h" | #include "pa_sql_connection.h" |
| #include "pa_dictionary.h" | #include "pa_dictionary.h" |
| #include "pa_vmethod_frame.h" | |
| // defines | |
| #define STRING_CLASS_NAME "string" | |
| // class | // class |
| class MString : public Methoded { | class MString: public Methoded { |
| public: | public: |
| MString(Pool& pool); | MString(); |
| public: // Methoded | public: // Methoded |
| bool used_directly() { return true; } | bool used_directly() { return true; } |
| }; | }; |
| // methods | // global variable |
| static void _length(Request& r, const String& method_name, MethodParams *) { | DECLARE_CLASS_VAR(string, new MString, 0); |
| Pool& pool=r.pool(); | |
| 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& method_name, MethodParams *params) { | // defines for statics |
| Pool& pool=r.pool(); | |
| bool convert_problem=false; Exception rethrow_me; | |
| int converted; | |
| PTRY { | |
| converted=r.self->as_int(); | |
| } | |
| PCATCH(e) { // convert problem | |
| if(convert_problem=params->size()==0) { // we have a problem when do not have default | |
| rethrow_me=e; | |
| converted=0; | |
| } else | |
| converted=params->as_int(0, "default must be int", r); // (default) | |
| } | |
| PEND_CATCH | |
| if(convert_problem) | |
| PTHROW(rethrow_me.type(), rethrow_me.code(), | |
| rethrow_me.problem_source(), | |
| rethrow_me.comment()); | |
| Value& result=*new(pool) VInt(pool, converted); | |
| result.set_name(method_name); | |
| r.write_no_lang(result); | |
| } | |
| static void _double(Request& r, const String& method_name, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| bool convert_problem=false; Exception rethrow_me; | |
| double converted; | |
| PTRY { | |
| converted=r.self->as_double(); | |
| } | |
| PCATCH(e) { // convert problem | |
| if(convert_problem=params->size()==0) { // we have a problem when do not have default | |
| rethrow_me=e; | |
| converted=0; | |
| } else | |
| converted=params->as_double(0, "default must be double", r); // (default) | |
| } | |
| PEND_CATCH | |
| if(convert_problem) | |
| PTHROW(rethrow_me.type(), rethrow_me.code(), | |
| rethrow_me.problem_source(), | |
| rethrow_me.comment()); | |
| Value& result=*new(pool) VDouble(pool, converted); | #define MATCH_VAR_NAME "match" |
| result.set_name(method_name); | #define TRIM_START_OPTION "start" |
| r.write_no_lang(result); | #define TRIM_BOTH_OPTION "both" |
| } | #define TRIM_END_OPTION "end" |
| /*not static*/void _string_format(Request& r, const String& method_name, MethodParams *params) { | // statics |
| Pool& pool=r.pool(); | |
| Value& fmt=params->as_junction(0, "fmt must be code"); | static const String match_var_name(MATCH_VAR_NAME); |
| Temp_lang temp_lang(r, String::UL_PASS_APPENDED); | // methods |
| char *buf=format(pool, r.self->as_double(), r.process(fmt).as_string().cstr()); | |
| String result(pool); | static void _length(Request& r, MethodParams&) { |
| result.APPEND_CLEAN(buf, 0, | double result=GET_SELF(r, VString).string().length(); |
| method_name.origin().file, | r.write_no_lang(*new VDouble(result)); |
| method_name.origin().line); | |
| r.write_no_lang(result); | |
| } | } |
| static void _left(Request& r, const String&, MethodParams *params) { | static void _int(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | const String& self_string=GET_SELF(r, VString).string(); |
| int converted; | |
| size_t n=(size_t)params->as_int(0, "n must be int", r); | try { |
| if(self_string.is_empty()) | |
| const String& string=*static_cast<VString *>(r.self)->get_string(); | throw Exception("parser.runtime", |
| r.write_assign_lang(*new(pool) VString(string.mid(0, n))); | 0, |
| "parameter is empty string, error converting"); | |
| converted=self_string.as_int(); | |
| } catch(...) { // convert problem | |
| if(params.count()>0) | |
| converted=params.as_int(0, "default must be int", r); // (default) | |
| else | |
| rethrow; // we have a problem when no default | |
| } | |
| r.write_no_lang(*new VInt(converted)); | |
| } | } |
| static void _right(Request& r, const String&, MethodParams *params) { | static void _double(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | const String& self_string=GET_SELF(r, VString).string(); |
| double converted; | |
| size_t n=(size_t)params->as_int(0, "n must be int", r); | try { |
| if(self_string.is_empty()) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "parameter is empty string, error converting"); | |
| converted=self_string.as_double(); | |
| } catch(...) { // convert problem | |
| if(params.count()>0) | |
| converted=params.as_double(0, "default must be double", r); // (default) | |
| else | |
| rethrow; // we have a problem when no default | |
| } | |
| r.write_no_lang(*new VDouble(converted)); | |
| } | |
| static void _bool(Request& r, MethodParams& params) { | |
| const String& self_string=GET_SELF(r, VString).string(); | |
| bool converted; | |
| try { | |
| if(self_string.is_empty()) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "parameter is empty string, error converting"); | |
| converted=self_string.as_bool(); | |
| } catch(...) { // convert problem | |
| if(params.count()>0) | |
| converted=params.as_bool(0, "default must be bool", r); // (default) | |
| else | |
| rethrow; // we have a problem when no default | |
| } | |
| r.write_no_lang(*new VBool(converted)); | |
| } | |
| /*not static*/void _string_format(Request& r, MethodParams& params) { | |
| Value& fmt_maybe_code=params[0]; | |
| // for some time due to stupid {} in original design | |
| const String& fmt=r.process_to_string(fmt_maybe_code); | |
| const char* buf=format(r.get_self().as_double(), fmt.cstrm()); | |
| r.write_no_lang(String(buf)); | |
| } | |
| static void _left(Request& r, MethodParams& params) { | |
| ssize_t sn=params.as_int(0, "n must be int", r); | |
| if(sn<0) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "n(%d) must be >=0", sn); | |
| size_t n=(size_t)sn; | |
| const String& string=GET_SELF(r, VString).string(); | |
| r.write_assign_lang(string.mid(0, n)); | |
| } | |
| static void _right(Request& r, MethodParams& params) { | |
| ssize_t sn=(size_t)params.as_int(0, "n must be int", r); | |
| if(sn<0) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "n(%d) must be >=0", sn); | |
| size_t n=(size_t)sn; | |
| const String& string=*static_cast<VString *>(r.self)->get_string(); | |
| r.write_assign_lang(*new(pool) VString(string.mid(string.size()-n, string.size()))); | |
| } | |
| static void _mid(Request& r, const String&, MethodParams *params) { | |
| Pool& pool=r.pool(); | |
| size_t p=(size_t)params->as_int(0, "p must be int", r); | |
| size_t n=(size_t)params->as_int(1, "n must be int", r); | |
| const String& string=*static_cast<VString *>(r.self)->get_string(); | const String& string=GET_SELF(r, VString).string(); |
| r.write_assign_lang(*new(pool) VString(string.mid(p, p+n))); | size_t length=string.length(); |
| r.write_assign_lang(n<length?string.mid(length-n, string.length()):string); | |
| } | |
| static void _mid(Request& r, MethodParams& params) { | |
| const String& string=GET_SELF(r, VString).string(); | |
| ssize_t sbegin=params.as_int(0, "p must be int", r); | |
| if(sbegin<0) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "p(%d) must be >=0", sbegin); | |
| size_t begin=(size_t)sbegin; | |
| size_t end; | |
| if(params.count()>1) { | |
| ssize_t sn=params.as_int(1, "n must be int", r); | |
| if(sn<0) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "n(%d) must be >=0", sn); | |
| end=begin+(size_t)sn; | |
| } else | |
| end=string.length(); | |
| r.write_assign_lang(string.mid(begin, end)); | |
| } | } |
| static void _pos(Request& r, const String& method_name, MethodParams *params) { | static void _pos(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | Value& substr=params.as_no_junction(0, "substr must not be code"); |
| Value& substr=params->as_no_junction(0, "substr must not be code"); | |
| const String& string=*static_cast<VString *>(r.self)->get_string(); | const String& string=GET_SELF(r, VString).string(); |
| r.write_assign_lang(*new(pool) VInt(pool, string.pos(substr.as_string()))); | r.write_assign_lang(*new VInt((int)string.pos(substr.as_string()))); |
| } | } |
| static void split_list(Request& r, const String& method_name, MethodParams *params, | static void split_list(MethodParams& params, int paramIndex, |
| const String& string, | const String& string, |
| Array& result) { | ArrayString& result) { |
| Value& delim_value=params->as_no_junction(0, "delimiter must not be code"); | Value& delim_value=params.as_no_junction(paramIndex, "delimiter must not be code"); |
| size_t pos_after=0; | |
| string.split(result, pos_after, delim_value.as_string()); | |
| } | |
| #define SPLIT_LEFT 0x0001 | |
| #define SPLIT_RIGHT 0x0010 | |
| #define SPLIT_HORIZONTAL 0x0100 | |
| #define SPLIT_VERTICAL 0x1000 | |
| static int split_options(const String* options) { | |
| struct Split_option { | |
| const char* keyL; | |
| const char* keyU; | |
| int setBit; | |
| int checkBit; | |
| } split_option[]={ | |
| {"l", "L", SPLIT_LEFT, SPLIT_RIGHT}, // 0xVHRL | |
| {"r", "R", SPLIT_RIGHT, SPLIT_LEFT}, | |
| {"h", "H", SPLIT_HORIZONTAL, SPLIT_VERTICAL}, | |
| {"v", "V", SPLIT_VERTICAL, SPLIT_HORIZONTAL}, | |
| {0, 0, 0, 0} | |
| }; | |
| int result=0; | |
| if(options) { | |
| for(Split_option *o=split_option; o->keyL; o++) | |
| if(options->pos(o->keyL)!=STRING_NOT_FOUND | |
| || (o->keyU && options->pos(o->keyU)!=STRING_NOT_FOUND)) { | |
| if(result & o->checkBit) | |
| throw Exception("parser.runtime", | |
| options, | |
| "conflicting split options"); | |
| result |= o->setBit; | |
| } | |
| } | |
| return result; | |
| } | |
| static Table& split_vertical(ArrayString& pieces, bool right) { | |
| Table::columns_type columns(new ArrayString); | |
| *columns+=new String("piece"); | |
| Table& table=*new Table(columns, pieces.count()); | |
| if(right) { // right | |
| for(int i=pieces.count(); --i>=0; ) { | |
| Table::element_type row(new ArrayString); | |
| *row+=pieces[i]; | |
| table+=row; | |
| } | |
| } else { // left | |
| Array_iterator<const String*> i(pieces); | |
| while(i.has_next()) { | |
| Table::element_type row(new ArrayString); | |
| *row+=i.next(); | |
| table+=row; | |
| } | |
| } | |
| string.split(result, 0, delim_value.as_string()); | return table; |
| } | } |
| static void _lsplit(Request& r, const String& method_name, MethodParams *params) { | static Table& split_horizontal(ArrayString& pieces, bool right) { |
| Pool& pool=r.pool(); | Table& table=*new Table(Table::columns_type(0) /* nameless */); |
| const String& string=*static_cast<VString *>(r.self)->get_string(); | Table::element_type row(new ArrayString(pieces.count())); |
| if(right) { // right | |
| Array pieces(pool); | for(int i=pieces.count(); --i>=0; ) |
| split_list(r, method_name, params, string, pieces); | *row+=pieces[i]; |
| } else { // left | |
| Array& columns=*new(pool) Array(pool); | for(Array_iterator<const String*> i(pieces); i.has_next(); ) |
| columns+=new(pool) String(pool, "piece"); | *row+=i.next(); |
| Table& table=*new(pool) Table(pool, &string, | |
| &columns, pieces.size()); | |
| Array_iter i(pieces); | |
| while(i.has_next()) { | |
| Array& row=*new(pool) Array(pool); | |
| row+=i.next(); | |
| table+=&row; | |
| } | } |
| r.write_no_lang(*new(pool) VTable(pool, &table)); | table+=row; |
| } | |
| static void _rsplit(Request& r, const String& method_name, MethodParams *params) { | return table; |
| Pool& pool=r.pool(); | } |
| const String& string=*static_cast<VString *>(r.self)->get_string(); | |
| Array pieces(pool); | static void split_with_options(Request& r, MethodParams& params, |
| split_list(r, method_name, params, string, pieces); | int bits) { |
| const String& string=GET_SELF(r, VString).string(); | |
| Array& columns=*new(pool) Array(pool); | ArrayString pieces; |
| columns+=new(pool) String(pool, "piece"); | split_list(params, 0, string, pieces); |
| Table& table=*new(pool) Table(pool, &string, | if(!bits) { |
| &columns, pieces.size()); | const String* options=0; |
| for(int i=pieces.size(); --i>=0; ) { | if(params.count()>1) |
| Array& row=*new(pool) Array(pool); | options=¶ms.as_string(1, "options must not be code"); |
| row+=pieces.get(i); | |
| table+=&row; | bits=split_options(options); |
| } | } |
| r.write_no_lang(*new(pool) VTable(pool, &table)); | bool right=(bits & SPLIT_RIGHT) != 0; |
| bool horizontal=(bits & SPLIT_HORIZONTAL) !=0; | |
| Table& table=horizontal?split_horizontal(pieces, right) | |
| :split_vertical(pieces, right); | |
| r.write_no_lang(*new VTable(&table)); | |
| } | |
| static void _split(Request& r, MethodParams& params) { | |
| split_with_options(r, params, 0 /* maybe-determine from param #2 */); | |
| } | |
| static void _lsplit(Request& r, MethodParams& params) { | |
| split_with_options(r, params, SPLIT_LEFT); | |
| } | |
| static void _rsplit(Request& r, MethodParams& params) { | |
| split_with_options(r, params, SPLIT_RIGHT); | |
| } | } |
| static void search_action(Table& table, Array *row, int, int, void *) { | static void search_action(Table& table, Table::element_type row, int, int, int, int, void *) { |
| if(row) | if(row) |
| table+=row; | table+=row; |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| struct Replace_action_info { | struct Replace_action_info { |
| Request *request; const String *origin; | Request* request; |
| const String *src; String *dest; | const String* src; String* dest; |
| Value *replacement_code; | VTable* vtable; |
| const String *post_match; | Value* replacement_code; |
| }; | }; |
| #endif | #endif |
| static void replace_action(Table& table, Array *row, int start, int finish, | /// @todo they can do $global[$result] there, getting pointer to later-invalid local var, kill this |
| void *info) { | static void replace_action(Table& table, ArrayString* row, |
| int prestart, int prefinish, | |
| int poststart, int postfinish, | |
| void *info) { | |
| Replace_action_info& ai=*static_cast<Replace_action_info *>(info); | Replace_action_info& ai=*static_cast<Replace_action_info *>(info); |
| if(row) { // begin&middle | if(row) { // begin&middle |
| // piece from last match['start'] to beginning of this match['finish'] | // piece from last match['prestart'] to beginning of this match['prefinish'] |
| if(start!=finish) | if(prestart!=prefinish) |
| *ai.dest << ai.src->mid(start, finish);//ai.dest->APPEND_CONST("-"); | *ai.dest << ai.src->mid(prestart, prefinish);//ai.dest->APPEND_CONST("-"); |
| // store found parts in one-record VTable | // store found parts in one-record VTable |
| if(table.size()) // middle | if(table.count()) // middle |
| table.put(0, row); | table.put(0, row); |
| else // begin | else // begin |
| table+=row; | table+=row; |
| { // execute 'replacement_code' in 'table' context | { // execute 'replacement_code' in 'table' context |
| VTable& vtable=*new(table.pool()) VTable(table.pool(), &table); | ai.vtable->set_table(table); |
| vtable.set_name(*ai.origin); | |
| Junction *junction=ai.replacement_code->get_junction(); | *ai.dest << ai.request->process_to_string(*ai.replacement_code); |
| Value *saved_match_var_value=junction->root->get_element(*match_var_name); | |
| junction->root->put_element(*match_var_name, &vtable); | |
| Value& replaced=ai.request->process(*ai.replacement_code, ai.origin, false); | |
| junction->root->put_element(*match_var_name, saved_match_var_value); | |
| /* | |
| ai.dest->APPEND_CONST("("); | |
| *ai.dest << *(String *)row->get(1/*match* /); | |
| ai.dest->APPEND_CONST(")"); | |
| */ | |
| *ai.dest << replaced.as_string(); | |
| } | } |
| ai.post_match=(String *)row->get(2/*post_match*/); | |
| } else // end | } else // end |
| *ai.dest << *ai.post_match; | *ai.dest << ai.src->mid(poststart, postfinish); |
| } | } |
| /// @todo use pcre:study somehow | /// @todo use pcre:study somehow |
| static void _match(Request& r, const String& method_name, MethodParams *params) { | static void _match(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | Value& regexp=params.as_no_junction(0, "regexp must not be code"); |
| const String& src=*static_cast<VString *>(r.self)->get_string(); | |
| const String* options= | |
| Value& regexp=params->as_no_junction(0, "regexp must not be code"); | params.count()>1? |
| ¶ms.as_no_junction(1, "options must not be code").as_string():0; | |
| const String *options= | |
| params->size()>1? | Temp_lang temp_lang(r, String::L_PASS_APPENDED); |
| ¶ms->as_no_junction(1, "options must not be code").as_string():0; | const String& src=GET_SELF(r, VString).string(); |
| bool just_matched; | |
| Value *result; | if(params.count()<3) { // search |
| Temp_lang temp_lang(r, String::UL_PASS_APPENDED); | Table* table=src.match(r.charsets.source(), |
| Table *table; | |
| if(params->size()<3) { // search | |
| bool was_global; | |
| bool matched=src.match(r.pcre_tables(), | |
| &method_name, | |
| regexp.as_string(), options, | regexp.as_string(), options, |
| &table, | |
| search_action, 0, | search_action, 0, |
| &was_global); | just_matched); |
| // matched | // Value* result; |
| // not (just matched[3=pre/match/post], no substrings) or Global search | // if(table) |
| if(table->columns()->size()>3 || was_global) | // result=new VTable(table); // table of pre/match/post+substrings |
| result=new(pool) VTable(pool, table); // table of pre/match/post+substrings | // else |
| else | // result=new VBool(just_matched); |
| result=new(pool) VBool(pool, matched); | // r.write_assign_lang(*result); |
| r.write_assign_lang(*new VTable(table)); | |
| } else { // replace | } else { // replace |
| Value& replacement_code=params->as_junction(2, "replacement code must be code"); | Value& replacement_code=params.as_junction(2, "replacement param must be code"); |
| String& dest=*new(pool) String(pool); | String result; |
| Replace_action_info replace_action_info={ | VTable* vtable=new VTable; |
| &r, &method_name, | Replace_action_info info={ |
| &src, &dest, | &r, |
| &replacement_code, | &src, |
| &src | &result, |
| vtable, | |
| &replacement_code | |
| }; | }; |
| src.match(r.pcre_tables(), | Temp_value_element temp_match_var( |
| &method_name, | *replacement_code.get_junction()->method_frame, |
| r.process(regexp).as_string(), options, | match_var_name, vtable); |
| &table, | src.match(r.charsets.source(), |
| replace_action, &replace_action_info); | r.process_to_string(regexp), options, |
| result=new(pool) VString(dest); | replace_action, &info, |
| just_matched); | |
| r.write_assign_lang(result); | |
| } | } |
| result->set_name(method_name); | |
| r.write_assign_lang(*result); | |
| } | } |
| static void change_case(Request& r, const String& method_name, MethodParams *params, | static void change_case(Request& r, MethodParams&, |
| String::Change_case_kind kind) { | String::Change_case_kind kind) { |
| Pool& pool=r.pool(); | const String& src=GET_SELF(r, VString).string(); |
| const String& src=*static_cast<VString *>(r.self)->get_string(); | |
| r.write_assign_lang(*new(pool) VString(src.change_case(pool, r.pcre_tables(), | r.write_assign_lang(src.change_case(r.charsets.source(), kind)); |
| kind))); | |
| } | } |
| static void _upper(Request& r, const String& method_name, MethodParams *params) { | static void _upper(Request& r, MethodParams& params) { |
| change_case(r, method_name, params, String::CC_UPPER); | change_case(r, params, String::CC_UPPER); |
| } | } |
| static void _lower(Request& r, const String& method_name, MethodParams *params) { | static void _lower(Request& r, MethodParams& params) { |
| change_case(r, method_name, params, String::CC_LOWER); | change_case(r, params, String::CC_LOWER); |
| } | } |
| #ifndef DOXYGEN | #ifndef DOXYGEN |
| class String_sql_event_handlers : public SQL_Driver_query_event_handlers { | class String_sql_event_handlers: public SQL_Driver_query_event_handlers { |
| const String& statement_string; const char* statement_cstr; | |
| bool got_column; | |
| public: | public: |
| String_sql_event_handlers(Pool& apool, | bool got_cell; |
| const String& astatement_string, const char *astatement_cstr) : | String& result; |
| pool(apool), | public: |
| statement_string(astatement_string), | String_sql_event_handlers( |
| statement_cstr(astatement_cstr), | const String& astatement_string, const char* astatement_cstr): |
| got_column(false), got_cell(false) { | statement_string(astatement_string), statement_cstr(astatement_cstr), |
| result=new(pool) String(pool); | got_column(false), |
| } | got_cell(false), |
| result(*new String) {} | |
| void add_column(void *ptr, size_t size) { | |
| if(got_column) | bool add_column(SQL_Error& error, const char* /*str*/, size_t /*length*/) { |
| PTHROW(0, 0, | if(got_column) { |
| &statement_string, | error=SQL_Error("parser.runtime", |
| //statement_string, | |
| "result must contain exactly one column"); | "result must contain exactly one column"); |
| return true; | |
| } | |
| got_column=true; | got_column=true; |
| return false; | |
| } | } |
| void before_rows() { /* ignore */ } | bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; } |
| void add_row() { /* ignore */ } | bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; } |
| void add_row_cell(void *ptr, size_t size) { | bool add_row_cell(SQL_Error& error, const char* str, size_t length) { |
| if(got_cell) | if(got_cell) { |
| PTHROW(0, 0, | error=SQL_Error("parser.runtime", |
| &statement_string, | //statement_string, |
| "result must not contain more then one row"); | "result must not contain more then one row"); |
| got_cell=true; | return true; |
| } | |
| result->APPEND_TAINTED((const char *)ptr, size, statement_cstr, 0); | try { |
| got_cell=true; | |
| result.append_know_length(str, length, String::L_TAINTED); | |
| return false; | |
| } catch(...) { | |
| error=SQL_Error("exception occured in String_sql_event_handlers::add_row_cell"); | |
| return true; | |
| } | |
| } | } |
| private: | |
| Pool& pool; | |
| const String& statement_string; const char *statement_cstr; | |
| bool got_column; | |
| public: | |
| bool got_cell; | |
| String *result; | |
| }; | }; |
| #endif | #endif |
| const String* sql_result_string(Request& r, const String& method_name, MethodParams *params, | extern String sql_bind_name; |
| Hash *&options) { | extern String sql_limit_name; |
| Pool& pool=r.pool(); | extern String sql_offset_name; |
| extern String sql_default_name; | |
| if(!r.connection) | extern String sql_distinct_name; |
| PTHROW(0, 0, | extern int marshal_binds(HashStringValue& hash, SQL_Driver::Placeholder*& placeholders); |
| &method_name, | extern void unmarshal_bind_updates(HashStringValue& hash, int placeholder_count, SQL_Driver::Placeholder* placeholders); |
| "without connect"); | |
| const String* sql_result_string(Request& r, MethodParams& params, | |
| Value& statement=params->as_junction(0, "statement must be code"); | HashStringValue*& options, Value*& default_code) { |
| 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) { | default_code=0; |
| Value& voptions=params->as_no_junction(1, "options must be hash, not code"); | if(params.count()>1) { |
| if(voptions.is_defined()) | Value& voptions=params.as_no_junction(1, "options must be hash, not code"); |
| if(options=voptions.get_hash()) { | if(voptions.is_defined() && !voptions.is_string()) |
| if(Value *vlimit=(Value *)options->get(*sql_limit_name)) | if((options=voptions.get_hash())) { |
| limit=(ulong)r.process(*vlimit).as_double(); | int valid_options=0; |
| if(Value *voffset=(Value *)options->get(*sql_offset_name)) | if(Value* vbind=options->get(sql_bind_name)) { |
| offset=(ulong)r.process(*voffset).as_double(); | 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((default_code=options->get(sql_default_name))) { | |
| valid_options++; | |
| } | |
| if(valid_options!=options->count()) | |
| throw Exception("parser.runtime", | |
| 0, | |
| "called with invalid option"); | |
| } else | } else |
| PTHROW(0, 0, | throw Exception("parser.runtime", |
| &method_name, | 0, |
| "options must be hash"); | "options must be hash"); |
| } else | } else |
| options=0; | options=0; |
| Temp_lang temp_lang(r, String::UL_SQL); | SQL_Driver::Placeholder* placeholders=0; |
| const String& statement_string=r.process(statement).as_string(); | uint placeholders_count=0; |
| const char *statement_cstr= | if(bind) |
| statement_string.cstr(String::UL_UNSPECIFIED, r.connection); | placeholders_count=marshal_binds(*bind, placeholders); |
| String_sql_event_handlers handlers(pool, statement_string, statement_cstr); | |
| bool need_rethrow=false; Exception rethrow_me; | Temp_lang temp_lang(r, String::L_SQL); |
| PTRY { | const String& statement_string=r.process_to_string(statement); |
| r.connection->query( | const char* statement_cstr= |
| statement_cstr, offset, limit, | statement_string.cstr(String::L_UNSPECIFIED, r.connection()); |
| handlers); | String_sql_event_handlers handlers(statement_string, statement_cstr); |
| } | r.connection()->query( |
| PCATCH(e) { // query problem | statement_cstr, |
| rethrow_me=e; need_rethrow=true; | placeholders_count, placeholders, |
| } | offset, limit, |
| PEND_CATCH | handlers, |
| if(need_rethrow) | statement_string); |
| PTHROW(rethrow_me.type(), rethrow_me.code(), | |
| &statement_string, // setting more specific source [were url] | |
| rethrow_me.comment()); | |
| if(bind) | |
| unmarshal_bind_updates(*bind, placeholders_count, placeholders); | |
| if(!handlers.got_cell) | if(!handlers.got_cell) |
| return 0; // no lines, caller should return second param[default value] | return 0; // no lines, caller should return second param[default value] |
| return handlers.result; | return &handlers.result; |
| } | } |
| static void _sql(Request& r, const String& method_name, MethodParams *params) { | static void _sql(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | |
| Hash *options; | HashStringValue* options; |
| const String *string=sql_result_string(r, method_name, params, options); | Value* default_code; |
| const String* string=sql_result_string(r, params, options, default_code); | |
| if(!string) { | if(!string) { |
| if(options) { | if(default_code) { |
| if(Value *vdefault=(Value *)options->get(*sql_default_name)) { | string=&r.process_to_string(*default_code); |
| if(!vdefault->get_junction()) | |
| PTHROW(0, 0, | |
| &method_name, | |
| "default option must be code"); | |
| string=r.process(*vdefault).get_string(); | |
| if(!string) | |
| string=empty_string; | |
| } else | |
| PTHROW(0, 0, | |
| &method_name, | |
| "produced no result, but no default option specified"); | |
| } else | } else |
| PTHROW(0, 0, | throw Exception("parser.runtime", |
| &method_name, | 0, |
| "produced no result, but no options (no default) specified"); | "produced no result, but no default option specified"); |
| } | } |
| VString& result=*new(pool) VString(*string); | |
| result.set_name(method_name); | r.write_assign_lang(*string); |
| r.write_assign_lang(result); | |
| } | } |
| static void _replace(Request& r, const String& method_name, MethodParams *params) { | static void _replace(Request& r, MethodParams& params) { |
| Pool& pool=r.pool(); | const String& src=GET_SELF(r, VString).string(); |
| const String& src=*static_cast<VString *>(r.self)->get_string(); | |
| Table *table=params->as_no_junction(0, "parameter must not be code").get_table(); | Table* table=params.as_no_junction(0, "parameter must not be code").get_table(); |
| if(!table) | if(!table) |
| PTHROW(0, 0, | throw Exception("parser.runtime", |
| &method_name, | 0, |
| "parameter must be table"); | "parameter must be table"); |
| Dictionary dict(*table); | Dictionary dict(*table); |
| r.write_assign_lang(*new(pool) VString(src.replace(pool, dict))); | r.write_assign_lang(src.replace(dict)); |
| } | } |
| // constructor | |
| MString::MString(Pool& apool) : Methoded(apool) { | static void _save(Request& r, MethodParams& params) { |
| set_name(*NEW String(pool(), STRING_CLASS_NAME)); | const String& file_name=params.as_string(params.count()-1, |
| "file name must be string"); | |
| const String& src=GET_SELF(r, VString).string(); | |
| bool do_append=false; | |
| if(params.count()>1) { | |
| const String& mode=params.as_string(0, "mode must be string"); | |
| if(mode=="append") | |
| do_append=true; | |
| else | |
| throw Exception("parser.runtime", | |
| &mode, | |
| "unknown mode, must be 'append'"); | |
| } | |
| // write | |
| const char* buf=src.cstr(String::L_UNSPECIFIED, r.connection(false/*no error if none*/)); | |
| file_write(r.absolute(file_name), | |
| buf, strlen(buf), true, do_append); | |
| } | |
| static void _normalize(Request& r, MethodParams&) { | |
| const String& src=GET_SELF(r, VString).string(); | |
| r.write_assign_lang(src); | |
| } | |
| static void _trim(Request& r, MethodParams& params) { | |
| const String& src=GET_SELF(r, VString).string(); | |
| String::Trim_kind kind=String::TRIM_BOTH; | |
| const char* chars=0; | |
| if(params.count()>0) { | |
| const String& skind=params.as_string(0, | |
| "'where' must be string"); | |
| if(skind.length()) | |
| if(skind==TRIM_START_OPTION) | |
| kind=String::TRIM_START; | |
| else if(skind==TRIM_END_OPTION) | |
| kind=String::TRIM_END; | |
| else if(skind==TRIM_BOTH_OPTION) | |
| kind=String::TRIM_BOTH; | |
| else | |
| throw Exception("parser.runtime", | |
| &skind, | |
| "'kind' must be one of "TRIM_START_OPTION", "TRIM_BOTH_OPTION", "TRIM_END_OPTION); | |
| if(params.count()>1) { | |
| const String& schars=params.as_string(1, "'chars' must be string"); | |
| if(schars.length()) | |
| chars=schars.cstr(); | |
| } | |
| } | |
| r.write_assign_lang(src.trim(kind, chars)); | |
| } | |
| static void _append(Request& r, MethodParams& params) { | |
| // c=a+b | |
| VString& va=GET_SELF(r, VString); | |
| const String& a=va.string(); | |
| const String& b=params.as_string(0, "parameter must be string"); | |
| String& c=*new String(a); | |
| c.append(b, String::L_PASS_APPENDED); | |
| va.set_string(c); | |
| } | |
| static void _base64(Request& r, MethodParams& params) { | |
| if(params.count()) { | |
| // decode | |
| const char* cstr=params.as_string(0, "parameter must be string").cstr(); | |
| char* decoded_cstr=0; | |
| size_t decoded_size=0; | |
| pa_base64_decode(cstr, strlen(cstr), decoded_cstr, decoded_size); | |
| if(decoded_cstr && decoded_size) | |
| r.write_assign_lang(*new String(decoded_cstr, decoded_size, true)); | |
| } else { | |
| // encode | |
| VString& self=GET_SELF(r, VString); | |
| const char* cstr=self.string().cstr(); | |
| const char* encoded=pa_base64_encode(cstr, strlen(cstr)); | |
| r.write_assign_lang(*new String(encoded, 0, true/*once ?param=base64(something) was needed*/)); | |
| } | |
| } | |
| // constructor | |
| MString::MString(): Methoded("string") { | |
| // ^string.length[] | // ^string.length[] |
| add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0); | add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0); |
| Line 453 MString::MString(Pool& apool) : Methoded | Line 633 MString::MString(Pool& apool) : Methoded |
| // ^string.double[] | // ^string.double[] |
| // ^string.double(default) | // ^string.double(default) |
| add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1); | add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1); |
| // ^void.bool[] | |
| // ^void.bool(default) | |
| add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1); | |
| // ^string.format{format} | // ^string.format{format} |
| add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1); | add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1); |
| Line 462 MString::MString(Pool& apool) : Methoded | Line 645 MString::MString(Pool& apool) : Methoded |
| // ^string.right(n) | // ^string.right(n) |
| add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1); | add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1); |
| // ^string.mid(p;n) | // ^string.mid(p;n) |
| add_native_method("mid", Method::CT_DYNAMIC, _mid, 2, 2); | add_native_method("mid", Method::CT_DYNAMIC, _mid, 1, 2); |
| // ^string.pos[substr] | // ^string.pos[substr] |
| add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 1); | add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 1); |
| // ^string.lsplit[delim] | // ^string.split[delim] |
| add_native_method("lsplit", Method::CT_DYNAMIC, _lsplit, 1, 1); | // ^string.split[delim][options] |
| // ^string.rsplit[delim] | add_native_method("split", Method::CT_DYNAMIC, _split, 1, 2); |
| add_native_method("rsplit", Method::CT_DYNAMIC, _rsplit, 1, 1); | // old names for backward compatibility |
| // ^string.lsplit[delim] | |
| add_native_method("lsplit", Method::CT_DYNAMIC, _lsplit, 1, 1); | |
| // ^string.rsplit[delim] | |
| add_native_method("rsplit", Method::CT_DYNAMIC, _rsplit, 1, 1); | |
| // ^string.match[regexp][options] | // ^string.match[regexp][options] |
| // ^string.match[regexp][options]{replacement-code} | // ^string.match[regexp][options]{replacement-code} |
| add_native_method("match", Method::CT_DYNAMIC, _match, 1, 3); | add_native_method("match", Method::CT_DYNAMIC, _match, 1, 3); |
| Line 482 MString::MString(Pool& apool) : Methoded | Line 669 MString::MString(Pool& apool) : Methoded |
| add_native_method("lower", Method::CT_DYNAMIC, _lower, 0, 0); | add_native_method("lower", Method::CT_DYNAMIC, _lower, 0, 0); |
| // ^sql[query] | // ^sql[query] |
| // ^sql[query][$.limit(1) $.offset(2) $.default[n/a]] | // ^sql[query][options hash] |
| add_native_method("sql", Method::CT_STATIC, _sql, 1, 2); | add_native_method("sql", Method::CT_STATIC, _sql, 1, 2); |
| // ^string.replace[table] | // ^string.replace[table] |
| add_native_method("replace", Method::CT_DYNAMIC, _replace, 1, 1); | add_native_method("replace", Method::CT_DYNAMIC, _replace, 1, 1); |
| } | |
| // global variable | // ^string.save[file] |
| add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2); | |
| Methoded *string_class; | // ^string.normalize[] |
| add_native_method("normalize", Method::CT_DYNAMIC, _normalize, 0, 0); | |
| // creator | // ^string.trim[[start|both|end][;chars]] |
| add_native_method("trim", Method::CT_DYNAMIC, _trim, 0, 2); | |
| Methoded *MString_create(Pool& pool) { | // ^string.append[string] |
| return string_class=new(pool) MString(pool); | add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1); |
| } | |
| // ^string.base64[] << encode | |
| // ^string:base64[encoded string] << decode | |
| add_native_method("base64", Method::CT_ANY, _base64, 0, 1); | |
| } |