--- parser3/src/classes/string.C 2001/08/07 13:54:13 1.70 +++ parser3/src/classes/string.C 2001/10/17 15:44:47 1.83 @@ -2,10 +2,10 @@ Parser: @b string parser class. Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan (http://design.ru/paf) + + $Id: string.C,v 1.83 2001/10/17 15:44:47 parser Exp $ */ -static const char *RCSId="$Id: string.C,v 1.70 2001/08/07 13:54:13 parser Exp $"; #include "classes.h" #include "pa_request.h" @@ -15,6 +15,7 @@ static const char *RCSId="$Id: string.C, #include "pa_vbool.h" #include "pa_string.h" #include "pa_sql_connection.h" +#include "pa_dictionary.h" // defines @@ -38,16 +39,56 @@ static void _length(Request& r, const St r.write_no_lang(result); } -static void _int(Request& r, const String& method_name, MethodParams *) { +static void _int(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); - Value& result=*new(pool) VInt(pool, r.self->as_int()); + bool convert_problem=false; Exception rethrow_me; + int converted; + Value *default_code=params->size()>0? + default_code=¶ms->as_junction(0, "default must be int"):0; // (default) + PTRY { + converted=r.self->as_int(); + } + PCATCH(e) { // convert problem + if(convert_problem=!default_code) { // we have a problem when no default + rethrow_me=e; + converted=0; + } else + converted=r.process(*default_code).as_int(); + } + 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 *) { +static void _double(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); - Value& result=*new(pool) VDouble(pool, r.self->as_double()); + bool convert_problem=false; Exception rethrow_me; + double converted; + Value *default_code=params->size()>0? + default_code=¶ms->as_junction(0, "default must be double"):0; // (default) + PTRY { + converted=r.self->as_double(); + } + PCATCH(e) { // convert problem + if(convert_problem=!default_code) { // we have a problem when no default + rethrow_me=e; + converted=0; + } else + converted=r.process(*default_code).as_double(); + } + 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); result.set_name(method_name); r.write_no_lang(result); } @@ -70,7 +111,7 @@ static void _double(Request& r, const St static void _left(Request& r, const String&, MethodParams *params) { Pool& pool=r.pool(); - size_t n=(size_t)r.process(params->get(0)).as_double(); + size_t n=(size_t)params->as_int(0, "n must be int", r); const String& string=*static_cast(r.self)->get_string(); r.write_assign_lang(*new(pool) VString(string.mid(0, n))); @@ -79,7 +120,7 @@ static void _left(Request& r, const Stri static void _right(Request& r, const String&, MethodParams *params) { Pool& pool=r.pool(); - size_t n=(size_t)r.process(params->get(0)).as_double(); + size_t n=(size_t)params->as_int(0, "n must be int", r); const String& string=*static_cast(r.self)->get_string(); r.write_assign_lang(*new(pool) VString(string.mid(string.size()-n, string.size()))); @@ -88,10 +129,12 @@ static void _right(Request& r, const Str static void _mid(Request& r, const String&, MethodParams *params) { Pool& pool=r.pool(); - size_t p=(size_t)r.process(params->get(0)).as_double(); - size_t n=(size_t)r.process(params->get(1)).as_double(); - const String& string=*static_cast(r.self)->get_string(); + + size_t p=(size_t)params->as_int(0, "p must be int", r); + size_t n=params->size()>1? + (size_t)params->as_int(1, "n must be int", r):string.size(); + r.write_assign_lang(*new(pool) VString(string.mid(p, p+n))); } @@ -159,13 +202,14 @@ static void search_action(Table& table, table+=row; } -/// used by string: _match / replace_action +#ifndef DOXYGEN struct Replace_action_info { Request *request; const String *origin; const String *src; String *dest; Value *replacement_code; const String *post_match; }; +#endif static void replace_action(Table& table, Array *row, int start, int finish, void *info) { Replace_action_info& ai=*static_cast(info); @@ -216,7 +260,7 @@ static void _match(Request& r, const Str Table *table; if(params->size()<3) { // search bool was_global; - bool matched=src.match(r.pcre_tables, + bool matched=src.match(r.pcre_tables(), &method_name, regexp.as_string(), options, &table, @@ -238,7 +282,7 @@ static void _match(Request& r, const Str &replacement_code, &src }; - src.match(r.pcre_tables, + src.match(r.pcre_tables(), &method_name, r.process(regexp).as_string(), options, &table, @@ -254,7 +298,7 @@ static void change_case(Request& r, cons 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, + 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) { @@ -305,7 +349,7 @@ public: }; #endif const String* sql_result_string(Request& r, const String& method_name, MethodParams *params, - Hash *&options) { + Hash *& options, Value *& default_code) { Pool& pool=r.pool(); if(!r.connection) @@ -317,17 +361,25 @@ const String* sql_result_string(Request& ulong limit=0; ulong offset=0; + default_code=0; if(params->size()>1) { - Value& options_param=params->as_no_junction(1, "options must be hash, not code"); - if(options=options_param.get_hash()) { - if(Value *vlimit=(Value *)options->get(*sql_limit_name)) - limit=(ulong)r.process(*vlimit).as_double(); - if(Value *voffset=(Value *)options->get(*sql_offset_name)) - offset=(ulong)r.process(*voffset).as_double(); - } else - PTHROW(0, 0, - &method_name, - "options must be hash"); + Value& voptions=params->as_no_junction(1, "options must be hash, not code"); + if(voptions.is_defined()) + if(options=voptions.get_hash()) { + if(Value *vlimit=(Value *)options->get(*sql_limit_name)) + limit=(ulong)r.process(*vlimit).as_double(); + if(Value *voffset=(Value *)options->get(*sql_offset_name)) + offset=(ulong)r.process(*voffset).as_double(); + if(default_code=(Value *)options->get(*sql_default_name)) { + if(!default_code->get_junction()) + PTHROW(0, 0, + &method_name, + "default option must be code"); + } + } else + PTHROW(0, 0, + &method_name, + "options must be hash"); } else options=0; @@ -361,31 +413,49 @@ static void _sql(Request& r, const Strin Pool& pool=r.pool(); 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(options) { - if(Value *vdefault=(Value *)options->get(*sql_default_name)) { - 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"); + if(default_code) { + string=r.process(*default_code).get_string(); + if(!string) + string=new(pool) String(pool); } else PTHROW(0, 0, &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); result.set_name(method_name); r.write_assign_lang(result); } +static void _replace(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + const String& src=*static_cast(r.self)->get_string(); + + Table *table=params->as_no_junction(0, "parameter must not be code").get_table(); + if(!table) + PTHROW(0, 0, + &method_name, + "parameter must be table"); + + Dictionary dict(*table); + r.write_assign_lang(*new(pool) VString(src.replace(pool, dict))); +} + +static void _save(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + Value& vfile_name=params->as_no_junction(0, + "file name must not be code"); + + const String& src=*static_cast(r.self)->get_string(); + + // write + file_write(pool, r.absolute(vfile_name.as_string()), + src.cstr(String::UL_AS_IS), src.size(), true); +} + // constructor MString::MString(Pool& apool) : Methoded(apool) { @@ -396,10 +466,11 @@ MString::MString(Pool& apool) : Methoded add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0); // ^string.int[] - add_native_method("int", Method::CT_DYNAMIC, _int, 0, 0); - + // ^string.int(default) + add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1); // ^string.double[] - add_native_method("double", Method::CT_DYNAMIC, _double, 0, 0); + // ^string.double(default) + add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1); // ^string.format{format} add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1); @@ -409,7 +480,7 @@ MString::MString(Pool& apool) : Methoded // ^string.right(n) add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1); // ^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] add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 1); @@ -431,6 +502,12 @@ MString::MString(Pool& apool) : Methoded // ^sql[query] // ^sql[query][$.limit(1) $.offset(2) $.default[n/a]] add_native_method("sql", Method::CT_STATIC, _sql, 1, 2); + + // ^string.replace[table] + add_native_method("replace", Method::CT_DYNAMIC, _replace, 1, 1); + + // ^string.save[file] + add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1); } // global variable