Annotation of parser3/src/classes/table.C, revision 1.133
1.20 paf 1: /** @file
1.47 paf 2: Parser: @b table parser class.
1.20 paf 3:
1.1 paf 4: Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
1.130 paf 5: Author: Alexander Petrosyan <paf@design.ru> (http://paf.design.ru)
1.20 paf 6:
1.133 ! paf 7: $Id: table.C,v 1.130 2001/11/05 11:46:21 paf Exp $
1.1 paf 8: */
9:
1.105 parser 10: #include "classes.h"
1.24 paf 11: #include "pa_config_includes.h"
1.16 paf 12: #include "pa_common.h"
1.1 paf 13: #include "pa_request.h"
14: #include "pa_vtable.h"
1.6 paf 15: #include "pa_vint.h"
1.51 paf 16: #include "pa_sql_connection.h"
1.72 paf 17: #include "pa_vbool.h"
1.1 paf 18:
1.66 paf 19: // defines
1.1 paf 20:
1.66 paf 21: #define TABLE_CLASS_NAME "table"
22:
23: // class
24:
25: class MTable : public Methoded {
26: public: // VStateless_class
27: Value *create_new_value(Pool& pool) { return new(pool) VTable(pool); }
28:
29: public:
30: MTable(Pool& pool);
1.70 paf 31:
32: public: // Methoded
1.66 paf 33: bool used_directly() { return true; }
34: };
1.1 paf 35:
36: // methods
1.66 paf 37:
1.61 paf 38: static void _set(Request& r, const String& method_name, MethodParams *params) {
1.1 paf 39: Pool& pool=r.pool();
40: // data is last parameter
1.133 ! paf 41: Value& vdata=params->as_junction(params->size()-1, "body must be code");
! 42:
1.45 paf 43: Temp_lang temp_lang(r, String::UL_PASS_APPENDED);
1.133 ! paf 44: const String& data=r.process(vdata).as_string();
1.44 paf 45:
46: size_t pos_after=0;
47: // parse columns
48: Array *columns;
49: if(params->size()==2) {
50: columns=0;
1.21 paf 51: } else {
1.44 paf 52: columns=new(pool) Array(pool);
53:
54: Array head(pool);
55: data.split(head, &pos_after, "\n", 1, String::UL_CLEAN, 1);
56: if(head.size())
57: head.get_string(0)->split(*columns, 0, "\t", 1, String::UL_CLEAN);
58: }
59:
60: Table& table=*new(pool) Table(pool, &method_name, columns);
61: // parse cells
62: Array rows(pool);
63: data.split(rows, &pos_after, "\n", 1, String::UL_CLEAN);
1.98 parser 64: Array_iter i(rows);
65: while(i.has_next()) {
1.44 paf 66: Array& row=*new(pool) Array(pool);
1.98 parser 67: const String& string=*i.next_string();
1.118 parser 68: // remove comment lines
69: if(!string.size())
1.44 paf 70: continue;
71:
72: string.split(row, 0, "\t", 1, String::UL_CLEAN);
73: table+=&row;
1.17 paf 74: }
1.1 paf 75:
1.44 paf 76: // replace any previous table value
77: static_cast<VTable *>(r.self)->set_table(table);
78: }
79:
1.61 paf 80: static void _load(Request& r, const String& method_name, MethodParams *params) {
1.44 paf 81: Pool& pool=r.pool();
82: // filename is last parameter
1.125 parser 83: Value& vfile_name=params->as_no_junction(params->size()-1,
1.61 paf 84: "file name must not be code");
1.44 paf 85:
86: // loading text
1.125 parser 87: char *data=file_read_text(pool, r.absolute(vfile_name.as_string()));
1.44 paf 88:
1.1 paf 89: // parse columns
90: Array *columns;
91: #ifndef NO_STRING_ORIGIN
92: const Origin& origin=method_name.origin();
1.2 paf 93: const char *file=origin.file;
1.1 paf 94: uint line=origin.line;
95: #endif
96: if(params->size()==2) {
97: columns=0;
98: } else {
99: columns=new(pool) Array(pool);
100:
101: if(char *row_chars=getrow(&data))
102: do {
103: String *name=new(pool) String(pool);
1.45 paf 104: name->APPEND_TAINTED(lsplit(&row_chars, '\t'), 0, file, line++);
1.1 paf 105: *columns+=name;
106: } while(row_chars);
107: }
108:
109: // parse cells
1.27 paf 110: Table& table=*new(pool) Table(pool, &method_name, columns);
1.1 paf 111: char *row_chars;
112: while(row_chars=getrow(&data)) {
1.118 parser 113: // remove empty&comment lines
114: if(!*row_chars || *row_chars == '#')
1.28 paf 115: continue;
1.1 paf 116: Array *row=new(pool) Array(pool);
117: while(char *cell_chars=lsplit(&row_chars, '\t')) {
118: String *cell=new(pool) String(pool);
1.44 paf 119: cell->APPEND_TAINTED(cell_chars, 0, file, line);
1.1 paf 120: *row+=cell;
121: }
1.107 parser 122: #ifndef NO_STRING_ORIGIN
1.1 paf 123: line++;
1.107 parser 124: #endif
1.1 paf 125: table+=row;
126: };
127:
128: // replace any previous table value
1.18 paf 129: static_cast<VTable *>(r.self)->set_table(table);
1.1 paf 130: }
1.2 paf 131:
1.129 paf 132: /// @todo "z\nz" "zzz""zz"
1.61 paf 133: static void _save(Request& r, const String& method_name, MethodParams *params) {
1.22 paf 134: Pool& pool=r.pool();
1.125 parser 135: Value& vfile_name=params->as_no_junction(params->size()-1,
1.61 paf 136: "file name must not be code");
1.22 paf 137:
1.31 paf 138: Table& table=static_cast<VTable *>(r.self)->table();
139:
1.129 paf 140: bool do_append=false;
1.31 paf 141: String sdata(pool);
1.129 paf 142: if(params->size()==1) { // named output
1.31 paf 143: // write out names line
144: if(table.columns()) { // named table
1.98 parser 145: Array_iter i(*table.columns());
146: while(i.has_next()) {
147: sdata.append(*i.next_string(), //*static_cast<String *>(table.columns()->quick_get(column)),
148: String::UL_TABLE);
149: if(i.has_next())
1.31 paf 150: sdata.APPEND_CONST("\t");
151: }
152: } else { // nameless table
1.98 parser 153: if(int lsize=table.size()?static_cast<Array *>(table.get(0))->size():0)
1.31 paf 154: for(int column=0; column<lsize; column++) {
1.106 parser 155: char *cindex_tab=(char *)pool.malloc(MAX_NUMBER);
1.31 paf 156: snprintf(cindex_tab, MAX_NUMBER, "%d\t", column);
157: sdata.APPEND_CONST(cindex_tab);
158: }
159: else
160: sdata.APPEND_CONST("empty nameless table");
161: }
162: sdata.APPEND_CONST("\n");
1.129 paf 163: } else { // mode specified
164: const String& mode=params->as_string(0, "mode must be string");
165: if(mode=="append")
166: do_append=true;
167: else if(mode=="nameless")
168: /*ok, already skipped names output*/;
169: else
170: throw Exception(0, 0,
171: &mode,
172: "unknown mode, must be 'append'");
173:
1.31 paf 174: }
175: // data lines
1.98 parser 176: Array_iter i(table);
177: while(i.has_next()) {
178: Array_iter c(*static_cast<Array *>(i.next()));
179: while(c.has_next()) {
180: sdata.append(*c.next_string(), //*static_cast<String *>(row->quick_get(column)),
181: String::UL_TABLE);
182: if(c.has_next())
1.31 paf 183: sdata.APPEND_CONST("\t");
184: }
185: sdata.APPEND_CONST("\n");
186: }
187:
188: // write
1.125 parser 189: file_write(pool, r.absolute(vfile_name.as_string()),
1.129 paf 190: sdata.cstr(), sdata.size(), true, do_append);
1.22 paf 191: }
192:
1.93 parser 193: static void _count(Request& r, const String& method_name, MethodParams *) {
1.6 paf 194: Pool& pool=r.pool();
1.18 paf 195: Value& value=*new(pool) VInt(pool, static_cast<VTable *>(r.self)->table().size());
1.93 parser 196: value.set_name(method_name);
1.15 paf 197: r.write_no_lang(value);
1.6 paf 198: }
199:
1.61 paf 200: static void _line(Request& r, const String& method_name, MethodParams *) {
1.6 paf 201: Pool& pool=r.pool();
1.37 paf 202: Value& value=*new(pool) VInt(pool, 1+static_cast<VTable *>(r.self)->table().current());
1.93 parser 203: value.set_name(method_name);
1.15 paf 204: r.write_no_lang(value);
1.6 paf 205: }
206:
1.61 paf 207: static void _offset(Request& r, const String& method_name, MethodParams *params) {
1.6 paf 208: Pool& pool=r.pool();
1.18 paf 209: Table& table=static_cast<VTable *>(r.self)->table();
1.74 paf 210: if(params->size()) {
1.133 ! paf 211: bool absolute=false;
! 212: if(params->size()>1) {
! 213: const String& whence=params->as_string(0, "whence must be string");
! 214: if(whence=="cur")
! 215: absolute=false;
! 216: else if(whence=="set")
! 217: absolute=true;
! 218: else
! 219: throw Exception(0, 0,
! 220: &whence,
! 221: "is invalid whence, valid are 'cur' or 'set'");
! 222: }
! 223:
! 224:
! 225: Value& offset_expr=params->as_junction(params->size()-1, "offset must be expression");
! 226: table.offset(absolute, r.process(offset_expr).as_int());
1.74 paf 227: } else {
1.37 paf 228: Value& value=*new(pool) VInt(pool, table.current());
1.93 parser 229: value.set_name(method_name);
1.15 paf 230: r.write_no_lang(value);
1.6 paf 231: }
232: }
233:
1.61 paf 234: static void _menu(Request& r, const String& method_name, MethodParams *params) {
1.90 parser 235: Value& body_code=params->as_junction(0, "body must be code");
1.7 paf 236:
1.122 parser 237: Value *delim_maybe_code=params->size()>1?¶ms->get(1):0;
1.7 paf 238:
1.64 paf 239: VTable& vtable=*static_cast<VTable *>(r.self);
240: Table& table=vtable.table();
1.7 paf 241: bool need_delim=false;
1.99 parser 242: int saved_current=table.current();
243: int size=table.size();
244: for(int row=0; row<size; row++) {
1.22 paf 245: table.set_current(row);
1.7 paf 246:
1.12 paf 247: Value& processed_body=r.process(body_code);
1.121 parser 248: if(delim_maybe_code) { // delimiter set?
1.7 paf 249: const String *string=processed_body.get_string();
250: if(need_delim && string && string->size()) // need delim & iteration produced string?
1.121 parser 251: r.write_pass_lang(r.process(*delim_maybe_code));
1.7 paf 252: need_delim=true;
253: }
254: r.write_pass_lang(processed_body);
255: }
1.99 parser 256: table.set_current(saved_current);
1.7 paf 257: }
258:
1.110 parser 259: #ifndef DOXYGEN
1.74 paf 260: struct Row_info {
261: Table *table;
262: int key_field;
263: Array *value_fields;
264: Hash *hash;
265: };
1.110 parser 266: #endif
1.74 paf 267: static void table_row_to_hash(Array::Item *value, void *info) {
268: Array& row=*static_cast<Array *>(value);
269: Row_info& ri=*static_cast<Row_info *>(info);
270: Pool& pool=ri.table->pool();
271:
1.76 paf 272: if(ri.key_field<row.size()) {
273: VHash& result=*new(pool) VHash(pool);
1.128 parser 274: Hash& hash=*result.get_hash(0);
1.74 paf 275: for(int i=0; i<ri.value_fields->size(); i++) {
276: int value_field=ri.value_fields->get_int(i);
277: if(value_field<row.size())
278: hash.put(
1.91 parser 279: *ri.table->columns()->get_string(value_field),
1.74 paf 280: new(pool) VString(*row.get_string(value_field)));
281: }
282:
1.77 paf 283: ri.hash->put(*row.get_string(ri.key_field), &result);
1.74 paf 284: }
285: }
286: static void _hash(Request& r, const String& method_name, MethodParams *params) {
1.97 parser 287: Pool& pool=r.pool();
1.123 parser 288: Table& self_table=static_cast<VTable *>(r.self)->table();
1.97 parser 289: Value& result=*new(pool) VHash(pool);
1.123 parser 290: if(const Array *columns=self_table.columns())
1.74 paf 291: if(columns->size()>1) {
1.90 parser 292: const String& key_field_name=params->as_no_junction(0,
1.74 paf 293: "key field name must not be code").as_string();
1.123 parser 294: int key_field=self_table.column_name2index(key_field_name, true);
295:
296: Array value_fields(pool);
297: if(params->size()>1) {
298: Value& value_fields_param=params->as_no_junction(1, "value field(s) must not be code");
299: if(value_fields_param.is_string()) {
300: value_fields+=self_table.column_name2index(value_fields_param.as_string(), true);
301: } else if(Table *value_fields_table=value_fields_param.get_table()) {
302: for(int i=0; i<value_fields_table->size(); i++) {
303: const String& value_field_name=
304: *static_cast<Array *>(value_fields_table->get(i))->get_string(0);
305: value_fields+=self_table.column_name2index(value_field_name, true);
306: }
307: } else
1.127 parser 308: throw Exception(0, 0,
1.123 parser 309: &method_name,
310: "value field(s) must be string or self_table"
311: );
312: } else { // by all columns, including key
1.74 paf 313: for(int i=0; i<columns->size(); i++)
1.123 parser 314: value_fields+=i;
1.74 paf 315: }
316:
317: // integers: key_field & value_fields
1.128 parser 318: Row_info row_info={&self_table, key_field, &value_fields, result.get_hash(0)};
1.123 parser 319: self_table.for_each(table_row_to_hash, &row_info);
1.74 paf 320: }
1.97 parser 321: result.set_name(method_name);
322: r.write_no_lang(result);
1.74 paf 323: }
324:
1.110 parser 325: #ifndef DOXYGEN
1.78 paf 326: struct Table_seq_item {
1.34 paf 327: Array *row;
328: union {
329: char *c_str;
330: double d;
331: } value;
1.32 paf 332: };
1.110 parser 333: #endif
1.34 paf 334: static int sort_cmp_string(const void *a, const void *b) {
335: return strcmp(
1.78 paf 336: static_cast<const Table_seq_item *>(a)->value.c_str,
337: static_cast<const Table_seq_item *>(b)->value.c_str
1.34 paf 338: );
339: }
340: static int sort_cmp_double(const void *a, const void *b) {
1.78 paf 341: double va=static_cast<const Table_seq_item *>(a)->value.d;
342: double vb=static_cast<const Table_seq_item *>(b)->value.d;
1.34 paf 343: if(va<vb)
344: return -1;
345: else if(va>vb)
346: return +1;
347: else
348: return 0;
349: }
1.61 paf 350: static void _sort(Request& r, const String& method_name, MethodParams *params) {
1.101 parser 351: Pool& pool=r.pool();
1.90 parser 352: Value& key_maker=params->as_junction(0, "key-maker must be code");
1.61 paf 353:
1.122 parser 354: bool reverse=params->size()>1/*..[desc|asc|]*/?
1.103 parser 355: reverse=params->as_no_junction(1, "order must not be code").as_string()=="desc":
1.104 parser 356: false; // default=asc
1.32 paf 357:
1.101 parser 358: Table& old_table=static_cast<VTable *>(r.self)->table();
359: Table& new_table=*new(pool) Table(pool, &method_name, old_table.columns());
1.34 paf 360:
1.101 parser 361: Table_seq_item *seq=(Table_seq_item *)pool.malloc(sizeof(Table_seq_item)*old_table.size());
1.34 paf 362: int i;
363:
364: // calculate key values
365: bool key_values_are_strings=true;
1.101 parser 366: // save 'current'
367: int saved_current=old_table.current();
368: for(i=0; i<old_table.size(); i++) {
369: old_table.set_current(i);
1.32 paf 370: // calculate key value
1.101 parser 371: seq[i].row=(MethodParams *)old_table.get(i);
1.34 paf 372: Value& value=*r.process(key_maker).as_expr_result(true/*return string as-is*/);
373: if(i==0) // determining key values type by first one
374: key_values_are_strings=value.is_string();
375:
376: if(key_values_are_strings)
377: seq[i].value.c_str=value.as_string().cstr();
378: else
379: seq[i].value.d=value.as_double();
1.32 paf 380: }
1.101 parser 381: // restore 'current'
382: old_table.set_current(saved_current);
1.32 paf 383: // sort keys
1.101 parser 384: _qsort(seq, old_table.size(), sizeof(Table_seq_item),
1.34 paf 385: key_values_are_strings?sort_cmp_string:sort_cmp_double);
1.32 paf 386:
1.34 paf 387: // reorder table as they require in 'seq'
1.101 parser 388: for(i=0; i<old_table.size(); i++)
389: new_table+=seq[reverse?old_table.size()-1-i:i].row;
1.32 paf 390:
1.116 parser 391: // replace any previous table value
392: static_cast<VTable *>(r.self)->set_table(new_table);
1.32 paf 393: }
394:
1.61 paf 395: static void _locate(Request& r, const String& method_name, MethodParams *params) {
1.72 paf 396: Pool& pool=r.pool();
397:
1.36 paf 398: VTable& vtable=*static_cast<VTable *>(r.self);
399: Table& table=vtable.table();
1.72 paf 400: Value& result=*new(pool) VBool(pool, table.locate(
1.120 parser 401: params->as_string(0, "column name must be string"),
402: params->as_string(1, "value must be string")
403: ));
1.72 paf 404: result.set_name(method_name);
405: r.write_no_lang(result);
1.37 paf 406: }
407:
1.61 paf 408: static void _flip(Request& r, const String& method_name, MethodParams *params) {
1.39 paf 409: Pool& pool=r.pool();
410: VTable& vtable=*static_cast<VTable *>(r.self);
411:
412: Table& old_table=*vtable.get_table();
413: Table& new_table=*new(pool) Table(pool, &method_name, 0/*nameless*/);
414: if(old_table.size())
415: if(int old_cols=old_table.at(0).size())
416: for(int column=0; column<old_cols; column++) {
417: Array& new_row=*new(pool) Array(pool, old_table.size());
418: for(int i=0; i<old_table.size(); i++) {
419: const Array& old_row=old_table.at(i);
1.126 parser 420: new_row+=column<old_row.size()?old_row.get(column):new(pool) String(pool);
1.39 paf 421: }
422: new_table+=&new_row;
423: }
424:
1.99 parser 425: r.write_no_lang(*new(pool) VTable(pool, &new_table));
1.39 paf 426: }
427:
1.61 paf 428: static void _append(Request& r, const String& method_name, MethodParams *params) {
1.41 paf 429: Pool& pool=r.pool();
1.133 ! paf 430: // data is last parameter
1.61 paf 431: const String& string=
1.90 parser 432: r.process(params->as_junction(0, "body must be code")).as_string();
1.41 paf 433:
434: // parse cells
435: Array& row=*new(pool) Array(pool);
1.46 paf 436: string.split(row, 0, "\t", 1, String::UL_CLEAN);
1.41 paf 437:
1.66 paf 438: VTable& vtable=*static_cast<VTable *>(r.self);
439: vtable.table()+=&row;
1.41 paf 440: }
441:
1.61 paf 442: static void _join(Request& r, const String& method_name, MethodParams *params) {
1.42 paf 443: Pool& pool=r.pool();
444:
1.90 parser 445: Table *maybe_src=params->as_no_junction(0, "table ref must not be code").get_table();
1.42 paf 446: if(!maybe_src)
1.127 parser 447: throw Exception(0, 0,
1.91 parser 448: &method_name,
1.42 paf 449: "source is not a table");
450:
451: Table& src=*maybe_src;
452: Table& dest=static_cast<VTable *>(r.self)->table();
453: if(&src == &dest)
1.127 parser 454: throw Exception(0, 0,
1.91 parser 455: &method_name,
1.42 paf 456: "source and destination are same table");
457:
458: if(const Array *dest_columns=dest.columns()) { // dest is named
459: int saved_src_current=src.current();
460: for(int src_row=0; src_row<src.size(); src_row++) {
461: src.set_current(src_row);
462: Array& dest_row=*new(pool) Array(pool);
463: for(int dest_column=0; dest_column<dest_columns->size(); dest_column++)
464: dest_row+=src.item(*dest_columns->get_string(dest_column));
465: dest+=&dest_row;
466: }
467: src.set_current(saved_src_current);
468: } else { // dest is nameless
469: for(int src_row=0; src_row<src.size(); src_row++)
470: dest+=&src.at(src_row);
471: }
472: }
473:
1.94 parser 474: #ifndef DOXYGEN
475: class Table_sql_event_handlers : public SQL_Driver_query_event_handlers {
476: public:
477: Table_sql_event_handlers(Pool& apool, const String& amethod_name,
478: const String& astatement_string, const char *astatement_cstr) :
479: pool(apool),
480: method_name(amethod_name),
481: statement_string(astatement_string),
482: statement_cstr(astatement_cstr),
483: columns(*new(pool) Array(pool)),
1.133 ! paf 484: row(0), row_index(0),
1.94 parser 485: table(0)
486: {
487: }
488:
489: void add_column(void *ptr, size_t size) {
490: String *column=new(pool) String(pool);
491: column->APPEND_TAINTED(
492: (const char *)ptr, size,
493: statement_cstr, 0);
494: columns+=column;
495: }
496: void before_rows() {
497: table=new(pool) Table(pool, &method_name, &columns);
498: }
499: void add_row() {
500: (*table)+=(row=new(pool) Array(pool));
501: }
502: void add_row_cell(void *ptr, size_t size) {
503: String *cell=new(pool) String(pool);
504: if(size)
505: cell->APPEND_TAINTED(
506: (const char *)ptr, size,
1.133 ! paf 507: statement_cstr, row_index++);
1.94 parser 508: (*row)+=cell;
509: }
510:
511: private:
512: Pool& pool;
513: const String& method_name;
514: const String& statement_string; const char *statement_cstr;
515: Array& columns;
516: Array *row;
1.133 ! paf 517: uint row_index;
1.94 parser 518: public:
519: Table *table;
520: };
521: #endif
1.61 paf 522: static void _sql(Request& r, const String& method_name, MethodParams *params) {
1.49 paf 523: Pool& pool=r.pool();
524:
525: if(!r.connection)
1.127 parser 526: throw Exception(0, 0,
1.91 parser 527: &method_name,
1.49 paf 528: "without connect");
529:
1.90 parser 530: Value& statement=params->as_junction(0, "statement must be code");
1.49 paf 531:
1.53 paf 532: ulong limit=0;
1.100 parser 533: ulong offset=0;
1.49 paf 534: if(params->size()>1) {
1.109 parser 535: Value& voptions=params->as_no_junction(1, "options must be hash, not code");
536: if(voptions.is_defined())
1.128 parser 537: if(Hash *options=voptions.get_hash(&method_name)) {
1.109 parser 538: if(Value *vlimit=(Value *)options->get(*sql_limit_name))
539: limit=(ulong)r.process(*vlimit).as_double();
540: if(Value *voffset=(Value *)options->get(*sql_offset_name))
541: offset=(ulong)r.process(*voffset).as_double();
542: } else
1.127 parser 543: throw Exception(0, 0,
1.109 parser 544: &method_name,
545: "options must be hash");
1.49 paf 546: }
547:
1.54 paf 548: Temp_lang temp_lang(r, String::UL_SQL);
549: const String& statement_string=r.process(statement).as_string();
1.55 paf 550: const char *statement_cstr=
551: statement_string.cstr(String::UL_UNSPECIFIED, r.connection);
1.94 parser 552: Table_sql_event_handlers handlers(pool, method_name,
553: statement_string, statement_cstr);
1.127 parser 554: try {
1.52 paf 555: r.connection->query(
1.91 parser 556: statement_cstr, offset, limit,
1.94 parser 557: handlers);
1.127 parser 558: } catch(const Exception& e) { // query problem
559: // more specific source [were url]
560: throw Exception(e.type(), e.code(),
561: &statement_string,
562: "%s", e.comment());
1.52 paf 563: }
1.96 parser 564:
565: Table *result=
566: handlers.table?handlers.table: // query resulted in table? return it
567: new(pool) Table(pool, &method_name, 0); // query returned no table, fake it
1.49 paf 568:
569: // replace any previous table value
1.96 parser 570: static_cast<VTable *>(r.self)->set_table(*result);
1.49 paf 571: }
572:
1.88 parser 573: static void _columns(Request& r, const String& method_name, MethodParams *) {
574: Pool& pool=r.pool();
575:
576: Array& result_columns=*new(pool) Array(pool);
1.89 parser 577: result_columns+=new(pool) String(pool, "column");
1.88 parser 578: Table& result_table=*new(pool) Table(pool, &method_name, &result_columns);
579:
580: Table& source_table=static_cast<VTable *>(r.self)->table();
581: if(const Array *source_columns=source_table.columns()) {
1.98 parser 582: Array_iter i(*source_columns);
583: while(i.has_next()) {
1.88 parser 584: Array& result_row=*new(pool) Array(pool);
1.98 parser 585: result_row+=i.next();
1.88 parser 586: result_table+=&result_row;
587: }
588: }
589:
590: VTable& result=*new(pool) VTable(pool, &result_table);
591: result.set_name(method_name);
592: r.write_no_lang(result);
593: }
594:
1.66 paf 595: // constructor
596:
597: MTable::MTable(Pool& apool) : Methoded(apool) {
598: set_name(*NEW String(pool(), TABLE_CLASS_NAME));
599:
1.49 paf 600: // ^table:set{data}
601: // ^table:set[nameless]{data}
1.66 paf 602: add_native_method("set", Method::CT_DYNAMIC, _set, 1, 2);
1.2 paf 603:
1.49 paf 604: // ^table:load[file]
605: // ^table:load[nameless;file]
1.66 paf 606: add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
1.22 paf 607:
608: // ^table.save[file]
609: // ^table.save[nameless;file]
1.66 paf 610: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2);
1.6 paf 611:
612: // ^table.count[]
1.66 paf 613: add_native_method("count", Method::CT_DYNAMIC, _count, 0, 0);
1.6 paf 614:
615: // ^table.line[]
1.66 paf 616: add_native_method("line", Method::CT_DYNAMIC, _line, 0, 0);
1.6 paf 617:
1.10 paf 618: // ^table.offset[]
1.133 ! paf 619: // ^table.offset(offset)
! 620: // ^table.offset[cur|set](offset)
! 621: add_native_method("offset", Method::CT_DYNAMIC, _offset, 0, 2);
1.7 paf 622:
1.10 paf 623: // ^table.menu{code}
624: // ^table.menu{code}[delim]
1.66 paf 625: add_native_method("menu", Method::CT_DYNAMIC, _menu, 1, 2);
1.74 paf 626:
1.79 paf 627: // ^table:hash[key field name]
1.123 parser 628: // ^table:hash[key field name][value field name(s) string/table]
629: add_native_method("hash", Method::CT_DYNAMIC, _hash, 1, 2);
1.32 paf 630:
1.102 parser 631: // ^table.sort{string-key-maker} ^table.sort{string-key-maker}[desc|asc]
632: // ^table.sort(numeric-key-maker) ^table.sort(numeric-key-maker)[desc|asc]
1.66 paf 633: add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2);
1.8 paf 634:
1.36 paf 635: // ^table.locate[field;value]
1.66 paf 636: add_native_method("locate", Method::CT_DYNAMIC, _locate, 2, 2);
1.39 paf 637:
638: // ^table.flip[]
1.66 paf 639: add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0);
1.41 paf 640:
641: // ^table.append{r{tab}e{tab}c{tab}o{tab}r{tab}d}
1.66 paf 642: add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1);
1.42 paf 643:
644: // ^table.join[table]
1.66 paf 645: add_native_method("join", Method::CT_DYNAMIC, _join, 1, 1);
1.49 paf 646:
647:
1.100 parser 648: // ^table:sql[query]
649: // ^table:sql[query][$.limit(1) $.offset(2)]
650: add_native_method("sql", Method::CT_DYNAMIC, _sql, 1, 2);
1.88 parser 651:
652: // ^table:columns[]
653: add_native_method("columns", Method::CT_DYNAMIC, _columns, 0, 0);
1.66 paf 654: }
655:
656: // global variable
657:
658: Methoded *table_class;
659:
660: // creator
661:
662: Methoded *MTable_create(Pool& pool) {
663: return table_class=new(pool) MTable(pool);
1.40 paf 664: }
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