--- parser3/src/classes/string.C 2001/03/30 05:51:12 1.22 +++ parser3/src/classes/string.C 2001/04/04 10:50:33 1.35 @@ -1,9 +1,11 @@ -/* - Parser +/** @file + 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 1.22 2001/03/30 05:51:12 paf Exp $ + $Id: string.C,v 1.35 2001/04/04 10:50:33 paf Exp $ */ #include "pa_request.h" @@ -11,6 +13,8 @@ #include "pa_vdouble.h" #include "pa_vint.h" #include "pa_vtable.h" +#include "pa_vbool.h" +#include "pa_string.h" // global var @@ -36,14 +40,16 @@ static void _double(Request& r, const St r.write_no_lang(value); } +/// ^string.format{format} /*not static*/void _string_format(Request& r, const String& method_name, Array *params) { Pool& pool=r.pool(); Value& fmt=*static_cast(params->get(0)); - // forcing [this param type] - r.fail_if_junction_(true, fmt, method_name, "fmt must not be junction"); + // forcing {this param type} + r.fail_if_junction_(false, fmt, method_name, "fmt must be junction"); - char *buf=format(pool, r.self->as_double(), fmt.as_string().cstr()); + Temp_lang temp_lang(r, String::UL_PASS_APPENDED); + char *buf=format(pool, r.self->as_double(), r.process(fmt).as_string().cstr()); r.write_no_lang(String(pool, buf)); } @@ -54,7 +60,7 @@ static void _left(Request& r, const Stri size_t n=(size_t)r.process(*static_cast(params->get(0))).as_double(); const String& string=*static_cast(r.self)->get_string(); - r.write_assign_lang(*new(pool) VString(string.piece(0, n))); + r.write_assign_lang(*new(pool) VString(string.mid(0, n))); } static void _right(Request& r, const String&, Array *params) { @@ -63,7 +69,7 @@ static void _right(Request& r, const Str size_t n=(size_t)r.process(*static_cast(params->get(0))).as_double(); const String& string=*static_cast(r.self)->get_string(); - r.write_assign_lang(*new(pool) VString(string.piece(string.size()-n, string.size()))); + r.write_assign_lang(*new(pool) VString(string.mid(string.size()-n, string.size()))); } static void _mid(Request& r, const String&, Array *params) { @@ -73,7 +79,7 @@ static void _mid(Request& r, const Strin size_t n=(size_t)r.process(*static_cast(params->get(1))).as_double(); const String& string=*static_cast(r.self)->get_string(); - r.write_assign_lang(*new(pool) VString(string.piece(p, p+n))); + r.write_assign_lang(*new(pool) VString(string.mid(p, p+n))); } static void _pos(Request& r, const String& method_name, Array *params) { @@ -88,28 +94,15 @@ static void _pos(Request& r, const Strin } static void split_list(Request& r, const String& method_name, Array *params, - const String& string, Array& list) { + const String& string, + Array& result) { Pool& pool=r.pool(); Value& delim_value=*static_cast(params->get(0)); // forcing [this param type] r.fail_if_junction_(true, delim_value, method_name, "delimiter must not be junction"); - const String& delim=delim_value.as_string(); - - if(delim.size()) { - size_t pos_after=0; - int pos_before; - // while we have 'delim' in 'string'... - while((pos_before=string.pos(delim, pos_after))>=0) { - list+=&string.piece(pos_after, pos_before); - pos_after=pos_before+delim.size(); - } - // last piece - if(pos_after(info); + if(row) { // begin&middle + // piece from last match['start'] to beginning of this match['finish'] + if(start!=finish) + ai.dest->append(ai.src->mid(start, finish), String::UL_PASS_APPENDED);//ai.dest->APPEND_CONST("-"); + // store found parts in one-record Vtable + if(table.size()) // middle + table.put(0, row); + else // begin + table+=row; + { // execute 'replacement_code' in 'table' context + VTable& vtable=*new(table.pool()) VTable(table.pool(), &table); + vtable.set_name(*ai.origin); + + Junction *junction=ai.replacement_code->get_junction(); + junction->rcontext=junction->root=&vtable; + Value& replaced=ai.request->process(*ai.replacement_code, ai.origin, false); + + /* + ai.dest->APPEND_CONST("("); + ai.dest->append(*(String *)row->get(1/*match* /), String::UL_PASS_APPENDED); + ai.dest->APPEND_CONST(")"); + */ + ai.dest->append(replaced.as_string(), String::UL_PASS_APPENDED); + } + ai.post_match=(String *)row->get(2/*post_match*/); + } else // end + ai.dest->append(*ai.post_match, String::UL_PASS_APPENDED); +} + +/** search/replace + ^string.match[regexp][options] + ^string.match[regexp][options]{replacement-code} +*/ +static void _match(Request& r, const String& method_name, Array *params) { + Pool& pool=r.pool(); + const String& src=*static_cast(r.self)->get_string(); + + Value& regexp=*static_cast(params->get(0)); + // forcing [this param type] + r.fail_if_junction_(true, regexp, method_name, "regexp must not be junction"); + + const String *options=0; + if(params->size()>1) { + Value& value=*static_cast(params->get(1)); + // forcing {this param type} + r.fail_if_junction_(true, value, method_name, "options must not be junction"); + options=&value.as_string(); + } + + Value *result; + Temp_lang temp_lang(r, String::UL_PASS_APPENDED); + Table *table; + if(params->size()<3) { // search + if(src.match(&method_name, + regexp.as_string(), options, + &table, + search_action, 0)) { + // matched + if(table->columns()->size()==3 && // just matched[3=pre/match/post], no substrings + table->size()==1) // just one row, not /g_lobal search + result=new(pool) VBool(pool, true); + else // table of pre/match/post+substrings + result=new(pool) VTable(pool, table); + } else // not matched [not global] + result=new(pool) VBool(pool, false); + } else { // replace + Value& replacement_code=*static_cast(params->get(2)); + // forcing {this param type} + r.fail_if_junction_(false, replacement_code, + method_name, "replacement code must be junction"); + + String& dest=*new(pool) String(pool); + Replace_action_info replace_action_info={ + &r, &method_name, + &src, &dest, + &replacement_code, + &src + }; + src.match(&method_name, + r.process(regexp).as_string(), options, + &table, + replace_action, &replace_action_info); + result=new(pool) VString(dest); + } + result->set_name(method_name); + r.write_assign_lang(*result); +} + // initialize void initialize_string_class(Pool& pool, VStateless_class& vclass) { @@ -156,7 +251,7 @@ void initialize_string_class(Pool& pool, // ^string.double[] vclass.add_native_method("double", Method::CT_DYNAMIC, _double, 0, 0); - // ^string.format[] + // ^string.format{format} vclass.add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1); // ^string.left(n) @@ -173,5 +268,9 @@ void initialize_string_class(Pool& pool, vclass.add_native_method("lsplit", Method::CT_DYNAMIC, _lsplit, 1, 1); // ^string.rsplit[delim] vclass.add_native_method("rsplit", Method::CT_DYNAMIC, _rsplit, 1, 1); + + // ^string.match[regexp][options] + // ^string.match[regexp][options]{replacement-code} + vclass.add_native_method("match", Method::CT_DYNAMIC, _match, 1, 3); }