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| version 1.78, 2001/10/09 07:06:00 | version 1.98, 2002/03/27 15:30:34 |
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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, 2002 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) |
| $Id$ | $Id$ |
| */ | */ |
| Line 41 static void _length(Request& r, const St | Line 41 static void _length(Request& r, const St |
| static void _int(Request& r, const String& method_name, MethodParams *params) { | static void _int(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| bool convert_problem=false; Exception rethrow_me; | |
| int converted; | int converted; |
| PTRY { | Value *default_code=params->size()>0? |
| default_code=¶ms->as_junction(0, "default must be int"):0; // (default) | |
| try { | |
| converted=r.self->as_int(); | converted=r.self->as_int(); |
| } catch(...) { // convert problem | |
| if(!default_code) // we have a problem when no default | |
| /*re*/throw; | |
| else | |
| converted=r.process(*default_code).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); | Value& result=*new(pool) VInt(pool, converted); |
| result.set_name(method_name); | result.set_name(method_name); |
| Line 66 static void _int(Request& r, const Strin | Line 60 static void _int(Request& r, const Strin |
| static void _double(Request& r, const String& method_name, MethodParams *params) { | static void _double(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| bool convert_problem=false; Exception rethrow_me; | |
| double converted; | double converted; |
| PTRY { | Value *default_code=params->size()>0? |
| default_code=¶ms->as_junction(0, "default must be double"):0; // (default) | |
| try { | |
| converted=r.self->as_double(); | converted=r.self->as_double(); |
| } catch(...) { // convert problem | |
| if(!default_code) // we have a problem when no default | |
| /*re*/throw; | |
| else | |
| converted=r.process(*default_code).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); | Value& result=*new(pool) VDouble(pool, converted); |
| result.set_name(method_name); | result.set_name(method_name); |
| Line 92 static void _double(Request& r, const St | Line 80 static void _double(Request& r, const St |
| /*not static*/void _string_format(Request& r, const String& method_name, MethodParams *params) { | /*not static*/void _string_format(Request& r, const String& method_name, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Value& fmt=params->as_junction(0, "fmt must be code"); | Value& fmt_maybe_code=params->get(0); |
| // for some time due to stupid {} in original design | |
| const String& fmt= | |
| (fmt_maybe_code.get_junction()?r.process(fmt_maybe_code):fmt_maybe_code).as_string(); | |
| Temp_lang temp_lang(r, String::UL_PASS_APPENDED); | char *buf=format(pool, r.self->as_double(), fmt.cstr()); |
| char *buf=format(pool, r.self->as_double(), r.process(fmt).as_string().cstr()); | |
| String result(pool); | String result(pool); |
| result.APPEND_CLEAN(buf, 0, | result.APPEND_CLEAN(buf, 0, |
| Line 125 static void _right(Request& r, const Str | Line 115 static void _right(Request& r, const Str |
| static void _mid(Request& r, const String&, MethodParams *params) { | static void _mid(Request& r, const String&, MethodParams *params) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| const String& string=*static_cast<VString *>(r.self)->get_string(); | |
| size_t p=(size_t)params->as_int(0, "p must be int", r); | 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); | size_t n=params->size()>1? |
| (size_t)params->as_int(1, "n must be int", r):string.size(); | |
| const String& string=*static_cast<VString *>(r.self)->get_string(); | |
| r.write_assign_lang(*new(pool) VString(string.mid(p, p+n))); | r.write_assign_lang(*new(pool) VString(string.mid(p, p+n))); |
| } | } |
| Line 254 static void _match(Request& r, const Str | Line 246 static void _match(Request& r, const Str |
| Table *table; | Table *table; |
| if(params->size()<3) { // search | if(params->size()<3) { // search |
| bool was_global; | bool was_global; |
| bool matched=src.match(r.pcre_tables(), | bool matched=src.match( |
| &method_name, | &method_name, |
| regexp.as_string(), options, | regexp.as_string(), options, |
| &table, | &table, |
| Line 267 static void _match(Request& r, const Str | Line 259 static void _match(Request& r, const Str |
| else | else |
| result=new(pool) VBool(pool, matched); | result=new(pool) VBool(pool, matched); |
| } 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& dest=*new(pool) String(pool); |
| Replace_action_info replace_action_info={ | Replace_action_info replace_action_info={ |
| Line 276 static void _match(Request& r, const Str | Line 268 static void _match(Request& r, const Str |
| &replacement_code, | &replacement_code, |
| &src | &src |
| }; | }; |
| src.match(r.pcre_tables(), | src.match( |
| &method_name, | &method_name, |
| r.process(regexp).as_string(), options, | r.process(regexp).as_string(), options, |
| &table, | &table, |
| Line 292 static void change_case(Request& r, cons | Line 284 static void change_case(Request& r, cons |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| const String& src=*static_cast<VString *>(r.self)->get_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(*new(pool) VString(src.change_case(pool, |
| kind))); | kind))); |
| } | } |
| static void _upper(Request& r, const String& method_name, MethodParams *params) { | static void _upper(Request& r, const String& method_name, MethodParams *params) { |
| Line 316 public: | Line 308 public: |
| void add_column(void *ptr, size_t size) { | void add_column(void *ptr, size_t size) { |
| if(got_column) | if(got_column) |
| PTHROW(0, 0, | throw Exception("parser.runtime", |
| &statement_string, | &statement_string, |
| "result must contain exactly one column"); | "result must contain exactly one column"); |
| got_column=true; | got_column=true; |
| Line 325 public: | Line 317 public: |
| void add_row() { /* ignore */ } | void add_row() { /* ignore */ } |
| void add_row_cell(void *ptr, size_t size) { | void add_row_cell(void *ptr, size_t size) { |
| if(got_cell) | if(got_cell) |
| PTHROW(0, 0, | throw Exception("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; | got_cell=true; |
| Line 343 public: | Line 335 public: |
| }; | }; |
| #endif | #endif |
| const String* sql_result_string(Request& r, const String& method_name, MethodParams *params, | const String* sql_result_string(Request& r, const String& method_name, MethodParams *params, |
| Hash *&options) { | Hash *& options, Value *& default_code) { |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| if(!r.connection) | |
| PTHROW(0, 0, | |
| &method_name, | |
| "without connect"); | |
| Value& statement=params->as_junction(0, "statement must be code"); | Value& statement=params->as_junction(0, "statement must be code"); |
| ulong limit=0; | ulong limit=0; |
| ulong offset=0; | ulong offset=0; |
| default_code=0; | |
| if(params->size()>1) { | if(params->size()>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_defined()) | if(voptions.is_defined()) |
| if(options=voptions.get_hash()) { | if(options=voptions.get_hash(&method_name)) { |
| if(Value *vlimit=(Value *)options->get(*sql_limit_name)) | if(Value *vlimit=(Value *)options->get(*sql_limit_name)) |
| limit=(ulong)r.process(*vlimit).as_double(); | limit=(ulong)r.process(*vlimit).as_double(); |
| if(Value *voffset=(Value *)options->get(*sql_offset_name)) | if(Value *voffset=(Value *)options->get(*sql_offset_name)) |
| offset=(ulong)r.process(*voffset).as_double(); | offset=(ulong)r.process(*voffset).as_double(); |
| if(default_code=(Value *)options->get(*sql_default_name)) { | |
| if(!default_code->get_junction()) | |
| throw Exception("parser.runtime", | |
| &method_name, | |
| "default option must be code"); | |
| } | |
| } else | } else |
| PTHROW(0, 0, | throw Exception("parser.runtime", |
| &method_name, | &method_name, |
| "options must be hash"); | "options must be hash"); |
| } else | } else |
| Line 373 const String* sql_result_string(Request& | Line 367 const String* sql_result_string(Request& |
| Temp_lang temp_lang(r, String::UL_SQL); | Temp_lang temp_lang(r, String::UL_SQL); |
| const String& statement_string=r.process(statement).as_string(); | const String& statement_string=r.process(statement).as_string(); |
| const char *statement_cstr= | const char *statement_cstr= |
| statement_string.cstr(String::UL_UNSPECIFIED, r.connection); | statement_string.cstr(String::UL_UNSPECIFIED, r.connection(&method_name)); |
| String_sql_event_handlers handlers(pool, statement_string, statement_cstr); | String_sql_event_handlers handlers(pool, statement_string, statement_cstr); |
| bool need_rethrow=false; Exception rethrow_me; | try { |
| PTRY { | r.connection(&method_name)->query( |
| r.connection->query( | |
| statement_cstr, offset, limit, | statement_cstr, offset, limit, |
| handlers); | handlers); |
| } catch(const Exception& e) { // query problem | |
| // give more specific source [were url] | |
| throw Exception("sql.execute", | |
| &statement_string, | |
| "%s", e.comment()); | |
| } | } |
| 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(!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] |
| Line 400 static void _sql(Request& r, const Strin | Line 390 static void _sql(Request& r, const Strin |
| Pool& pool=r.pool(); | Pool& pool=r.pool(); |
| Hash *options; | Hash *options; |
| const String *string=sql_result_string(r, method_name, params, options); | Value *default_code; |
| const String *string=sql_result_string(r, method_name, 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(*default_code).get_string(); |
| if(!vdefault->get_junction()) | if(!string) |
| PTHROW(0, 0, | string=new(pool) String(pool); |
| &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, | &method_name, |
| "produced no result, but no options (no default) specified"); | "produced no result, but no default option specified"); |
| } | } |
| VString& result=*new(pool) VString(*string); | VString& result=*new(pool) VString(*string); |
| result.set_name(method_name); | result.set_name(method_name); |
| Line 431 static void _replace(Request& r, const S | Line 413 static void _replace(Request& r, const S |
| 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, | &method_name, |
| "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(*new(pool) VString(src.replace(pool, dict))); |
| } | } |
| static void _save(Request& r, const String& method_name, MethodParams *params) { | |
| const String& file_name=params->as_string(params->size()-1, | |
| "file name must be string"); | |
| const String& src=*static_cast<VString *>(r.self)->get_string(); | |
| bool do_append=false; | |
| if(params->size()>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::UL_UNSPECIFIED); | |
| file_write(r.absolute(file_name), | |
| buf, strlen(buf), true, do_append); | |
| } | |
| // constructor | // constructor |
| MString::MString(Pool& apool) : Methoded(apool) { | MString::MString(Pool& apool) : Methoded(apool) { |
| Line 462 MString::MString(Pool& apool) : Methoded | Line 468 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); |
| Line 487 MString::MString(Pool& apool) : Methoded | Line 493 MString::MString(Pool& apool) : Methoded |
| // ^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); |
| // ^string.save[file] | |
| add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2); | |
| } | } |
| // global variable | // global variable |