--- parser3/src/classes/string.C 2001/03/10 16:34:33 1.4 +++ parser3/src/classes/string.C 2001/04/03 09:58:07 1.25 @@ -1,75 +1,202 @@ -/* - Parser +/** @file + Parser: @b string parser class. + Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) - Author: Alexander Petrosyan - $Id: string.C,v 1.4 2001/03/10 16:34:33 paf Exp $ + Author: Alexander Petrosyan (http://design.ru/paf) + + $Id: string.C,v 1.25 2001/04/03 09:58:07 paf Exp $ */ #include "pa_request.h" #include "_string.h" #include "pa_vdouble.h" #include "pa_vint.h" +#include "pa_vtable.h" +#include "pa_vbool.h" // global var -VClass *string_class; +VStateless_class *string_class; // methods -static void _length(Request& r, Array *) { +static void _length(Request& r, const String&, Array *) { Pool& pool=r.pool(); - Value& value=*new(pool) VDouble(pool, r.self->as_string().size()); - r.wcontext->write(value, String::Untaint_lang::NO /*always object, not string*/); + Value& value=*new(pool) VDouble(pool, r.self->get_string()->size()); + r.write_no_lang(value); } -static void _int(Request& r, Array *) { +static void _int(Request& r, const String&, Array *) { Pool& pool=r.pool(); - Value& value=*new(pool) VInt(pool, static_cast(r.self->get_double())); - r.wcontext->write(value, String::Untaint_lang::NO /*always object, not string*/); + Value& value=*new(pool) VInt(pool, (int)r.self->as_double()); + r.write_no_lang(value); } -static void _double(Request& r, Array *) { +static void _double(Request& r, const String&, Array *) { Pool& pool=r.pool(); - Value& value=*new(pool) VDouble(pool, r.self->get_double()); - r.wcontext->write(value, String::Untaint_lang::NO /*always object, not string*/); + Value& value=*new(pool) VDouble(pool, r.self->as_double()); + r.write_no_lang(value); } -void initialize_string_class(Pool& pool, VClass& vclass) { - // ^string.length[] - String& LENGTH_NAME=*new(pool) String(pool); - LENGTH_NAME.APPEND_CONST("length"); +/// ^string.format{format} +/*not static*/void _string_format(Request& r, const String& method_name, Array *params) { + Pool& pool=r.pool(); - Method& LENGTH_METHOD=*new(pool) Method(pool, - LENGTH_NAME, - 0, 0, // min,max numbered_params_count - 0/*params_names*/, 0/*locals_names*/, - 0/*parser_code*/, _length - ); - vclass.add_method(LENGTH_NAME, LENGTH_METHOD); + Value& fmt=*static_cast(params->get(0)); + // forcing {this param type} + r.fail_if_junction_(false, fmt, method_name, "fmt must be junction"); + + 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)); +} - // ^string.int[] - String& INT_NAME=*new(pool) String(pool); - INT_NAME.APPEND_CONST("int"); +static void _left(Request& r, const String&, Array *params) { + Pool& pool=r.pool(); + + 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))); +} + +static void _right(Request& r, const String&, Array *params) { + Pool& pool=r.pool(); + + 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()))); +} + +static void _mid(Request& r, const String&, Array *params) { + Pool& pool=r.pool(); + + size_t p=(size_t)r.process(*static_cast(params->get(0))).as_double(); + 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))); +} + +static void _pos(Request& r, const String& method_name, Array *params) { + Pool& pool=r.pool(); + + Value& substr=*static_cast(params->get(0)); + // forcing [this param type] + r.fail_if_junction_(true, substr, method_name, "substr must not be junction"); + + const String& string=*static_cast(r.self)->get_string(); + r.write_assign_lang(*new(pool) VInt(pool, string.pos(substr.as_string()))); +} + +static void split_list(Request& r, const String& method_name, Array *params, + 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"); - Method& INT_METHOD=*new(pool) Method(pool, - INT_NAME, - 0, 0, // min,max numbered_params_count - 0/*params_names*/, 0/*locals_names*/, - 0/*parser_code*/, _int - ); - vclass.add_method(INT_NAME, INT_METHOD); + string.split(result, 0, delim_value.as_string(), String::UL_CLEAN, -1); +} + +static void _lsplit(Request& r, const String& method_name, Array *params) { + Pool& pool=r.pool(); + const String& string=*static_cast(r.self)->get_string(); + + Array& row=*new(pool) Array(pool); + split_list(r, method_name, params, string, row); + + Table& table=*new(pool) Table(pool, &string, + 0/*nameless*/, 1/*row preallocate(and only)*/); + table+=&row; + + r.write_no_lang(*new(pool) VTable(pool, &table)); +} + +static void _rsplit(Request& r, const String& method_name, Array *params) { + Pool& pool=r.pool(); + const String& string=*static_cast(r.self)->get_string(); + + Array list(pool); + split_list(r, method_name, params, string, list); + + Array& row=*new(pool) Array(pool); + for(int i=list.size(); --i>=0; ) + row+=list.get(i); + + Table& table=*new(pool) Table(pool, &string, + 0/*nameless*/, 1/*row preallocate(and only)*/); + table+=&row; + r.write_no_lang(*new(pool) VTable(pool, &table)); +} + +/// ^string.match{regexp}[options] +static void _match(Request& r, const String& method_name, Array *params) { + Pool& pool=r.pool(); + const String& string=*static_cast(r.self)->get_string(); + + Value& regexp=*static_cast(params->get(0)); + // forcing {this param type} + r.fail_if_junction_(false, regexp, method_name, "regexp must be junction"); + + Value& options=*static_cast(params->get(1)); + // forcing {this param type} + r.fail_if_junction_(true, options, method_name, "options must not be junction"); + + Temp_lang temp_lang(r, String::UL_PASS_APPENDED); + Table *table; + Value *result; + if(string.match(&method_name, + r.process(regexp).as_string(), options.as_string(), + &table)) { + // matched + if(table->columns()->size()==1) // just matched, no substrings + result=new(pool) VBool(pool, true); + else // table of match column+substring columns + result=new(pool) VTable(pool, table); + } else // not matched + result=new(pool) VBool(pool, false); + + r.write_no_lang(*result); +} + +// initialize + +void initialize_string_class(Pool& pool, VStateless_class& vclass) { + // ^string.length[] + vclass.add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0); + + // ^string.int[] + vclass.add_native_method("int", Method::CT_DYNAMIC, _int, 0, 0); + // ^string.double[] - String& DOUBLE_NAME=*new(pool) String(pool); - DOUBLE_NAME.APPEND_CONST("double"); + vclass.add_native_method("double", Method::CT_DYNAMIC, _double, 0, 0); + + // ^string.format{format} + vclass.add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1); + + // ^string.left(n) + vclass.add_native_method("left", Method::CT_DYNAMIC, _left, 1, 1); + // ^string.right(n) + vclass.add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1); + // ^string.mid(p;n) + vclass.add_native_method("mid", Method::CT_DYNAMIC, _mid, 2, 2); + + // ^string.pos[substr] + vclass.add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 1); + + // ^string.lsplit[delim] + 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); - Method& DOUBLE_METHOD=*new(pool) Method(pool, - DOUBLE_NAME, - 0, 0, // min,max numbered_params_count - 0/*params_names*/, 0/*locals_names*/, - 0/*parser_code*/, _double - ); - vclass.add_method(DOUBLE_NAME, DOUBLE_METHOD); + // ^string.match{regexp}[options] + vclass.add_native_method("match", Method::CT_DYNAMIC, _match, 2, 2); }