Annotation of parser3/src/classes/string.C, revision 1.195
1.24 paf 1: /** @file
2: Parser: @b string parser class.
3:
1.170 misha 4: Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.97 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
1.113 paf 6: */
1.24 paf 7:
1.195 ! moko 8: static const char * const IDENT_STRING_C="$Date: 2010-07-05 05:54:46 $";
1.1 paf 9:
1.43 paf 10: #include "classes.h"
1.126 paf 11: #include "pa_vmethod_frame.h"
12:
1.1 paf 13: #include "pa_request.h"
14: #include "pa_vdouble.h"
15: #include "pa_vint.h"
1.17 paf 16: #include "pa_vtable.h"
1.25 paf 17: #include "pa_vbool.h"
1.27 paf 18: #include "pa_string.h"
1.53 parser 19: #include "pa_sql_connection.h"
1.71 parser 20: #include "pa_dictionary.h"
1.119 paf 21: #include "pa_vmethod_frame.h"
1.174 misha 22: #include "pa_vregex.h"
1.189 misha 23: #include "pa_charsets.h"
1.1 paf 24:
1.41 paf 25: // class
26:
1.126 paf 27: class MString: public Methoded {
1.41 paf 28: public:
1.126 paf 29: MString();
1.41 paf 30: };
1.1 paf 31:
1.126 paf 32: // global variable
33:
34: DECLARE_CLASS_VAR(string, new MString, 0);
35:
36: // defines for statics
37:
38: #define MATCH_VAR_NAME "match"
1.162 misha 39: #define TRIM_START_OPTION "left"
40: #define TRIM_END_OPTION "right"
1.133 paf 41: #define TRIM_BOTH_OPTION "both"
1.126 paf 42:
1.189 misha 43: #define MODE_APPEND "append"
44:
1.126 paf 45: // statics
46:
47: static const String match_var_name(MATCH_VAR_NAME);
48:
1.1 paf 49: // methods
50:
1.126 paf 51: static void _length(Request& r, MethodParams&) {
1.163 misha 52: double result=GET_SELF(r, VString).string().length(r.charsets.source());
1.126 paf 53: r.write_no_lang(*new VDouble(result));
1.1 paf 54: }
55:
1.126 paf 56: static void _int(Request& r, MethodParams& params) {
57: const String& self_string=GET_SELF(r, VString).string();
1.72 parser 58: int converted;
1.84 parser 59: try {
1.126 paf 60: if(self_string.is_empty())
1.153 misha 61: throw Exception(PARSER_RUNTIME,
1.126 paf 62: 0,
1.121 paf 63: "parameter is empty string, error converting");
1.126 paf 64: converted=self_string.as_int();
1.84 parser 65: } catch(...) { // convert problem
1.144 paf 66: if(params.count()>0)
67: converted=params.as_int(0, "default must be int", r); // (default)
1.84 parser 68: else
1.126 paf 69: rethrow; // we have a problem when no default
1.72 parser 70: }
1.126 paf 71: r.write_no_lang(*new VInt(converted));
1.1 paf 72: }
73:
1.126 paf 74: static void _double(Request& r, MethodParams& params) {
75: const String& self_string=GET_SELF(r, VString).string();
1.72 parser 76: double converted;
1.84 parser 77: try {
1.126 paf 78: if(self_string.is_empty())
1.153 misha 79: throw Exception(PARSER_RUNTIME,
1.126 paf 80: 0,
1.121 paf 81: "parameter is empty string, error converting");
1.126 paf 82: converted=self_string.as_double();
1.84 parser 83: } catch(...) { // convert problem
1.144 paf 84: if(params.count()>0)
85: converted=params.as_double(0, "default must be double", r); // (default)
1.84 parser 86: else
1.126 paf 87: rethrow; // we have a problem when no default
1.72 parser 88: }
89:
1.126 paf 90: r.write_no_lang(*new VDouble(converted));
1.1 paf 91: }
92:
1.151 misha 93: static void _bool(Request& r, MethodParams& params) {
94: const String& self_string=GET_SELF(r, VString).string();
95: bool converted;
96: try {
97: if(self_string.is_empty())
1.153 misha 98: throw Exception(PARSER_RUNTIME,
1.151 misha 99: 0,
100: "parameter is empty string, error converting");
1.158 misha 101:
102: try {
103: converted=self_string.as_bool();
104: } catch(...) {
105: const String& lower_string=self_string.change_case(r.charsets.source(), String::CC_LOWER);
106: if(lower_string == "true"){
107: converted=true;
108: } else if (lower_string == "false"){
109: converted=false;
110: } else {
111: rethrow;
112: }
113: }
1.151 misha 114: } catch(...) { // convert problem
115: if(params.count()>0)
116: converted=params.as_bool(0, "default must be bool", r); // (default)
117: else
118: rethrow; // we have a problem when no default
119: }
120:
1.172 misha 121: r.write_no_lang(VBool::get(converted));
1.151 misha 122: }
123:
1.126 paf 124: /*not static*/void _string_format(Request& r, MethodParams& params) {
1.9 paf 125:
1.126 paf 126: Value& fmt_maybe_code=params[0];
1.95 paf 127: // for some time due to stupid {} in original design
1.99 paf 128: const String& fmt=r.process_to_string(fmt_maybe_code);
1.9 paf 129:
1.159 misha 130: const char* buf=format(r.get_self().as_double(), fmt.trim().cstrm());
1.63 parser 131:
1.126 paf 132: r.write_no_lang(String(buf));
1.9 paf 133: }
1.11 paf 134:
1.126 paf 135: static void _left(Request& r, MethodParams& params) {
1.138 paf 136: ssize_t sn=params.as_int(0, "n must be int", r);
137: if(sn<0)
1.153 misha 138: throw Exception(PARSER_RUNTIME,
1.138 paf 139: 0,
140: "n(%d) must be >=0", sn);
141: size_t n=(size_t)sn;
142:
1.126 paf 143: const String& string=GET_SELF(r, VString).string();
1.163 misha 144: r.write_assign_lang(string.mid(r.charsets.source(), 0, n));
1.15 paf 145: }
146:
1.126 paf 147: static void _right(Request& r, MethodParams& params) {
1.138 paf 148: ssize_t sn=(size_t)params.as_int(0, "n must be int", r);
149: if(sn<0)
1.153 misha 150: throw Exception(PARSER_RUNTIME,
1.138 paf 151: 0,
152: "n(%d) must be >=0", sn);
153: size_t n=(size_t)sn;
1.159 misha 154:
1.126 paf 155: const String& string=GET_SELF(r, VString).string();
1.163 misha 156: size_t length=string.length(r.charsets.source());
1.164 misha 157: r.write_assign_lang(n<length?string.mid(r.charsets.source(), length-n, length, length):string);
1.15 paf 158: }
159:
1.126 paf 160: static void _mid(Request& r, MethodParams& params) {
161: const String& string=GET_SELF(r, VString).string();
1.83 parser 162:
1.138 paf 163: ssize_t sbegin=params.as_int(0, "p must be int", r);
164: if(sbegin<0)
1.153 misha 165: throw Exception(PARSER_RUNTIME,
1.138 paf 166: 0,
167: "p(%d) must be >=0", sbegin);
168: size_t begin=(size_t)sbegin;
169:
170: size_t end;
1.164 misha 171: size_t length=0;
1.138 paf 172: if(params.count()>1) {
173: ssize_t sn=params.as_int(1, "n must be int", r);
174: if(sn<0)
1.153 misha 175: throw Exception(PARSER_RUNTIME,
1.138 paf 176: 0,
177: "n(%d) must be >=0", sn);
178: end=begin+(size_t)sn;
1.164 misha 179: } else {
180: length=string.length(r.charsets.source());
181: end=length;
182: }
1.163 misha 183:
1.164 misha 184: r.write_assign_lang(string.mid(r.charsets.source(), begin, end, length));
1.15 paf 185: }
186:
1.126 paf 187: static void _pos(Request& r, MethodParams& params) {
188: Value& substr=params.as_no_junction(0, "substr must not be code");
1.16 paf 189:
1.126 paf 190: const String& string=GET_SELF(r, VString).string();
1.165 misha 191: ssize_t offset=0;
192: if(params.count()>1){
193: offset=params.as_int(1, "n must be int", r);
194: if(offset<0)
195: throw Exception(PARSER_RUNTIME,
196: 0,
197: "n(%d) must be >=0", offset);
198: }
199:
1.166 misha 200: r.write_no_lang(*new VInt((int)string.pos(r.charsets.source(), substr.as_string(), (size_t)offset)));
1.16 paf 201: }
202:
1.128 paf 203: static void split_list(MethodParams& params, int paramIndex,
1.126 paf 204: const String& string,
205: ArrayString& result) {
206: Value& delim_value=params.as_no_junction(paramIndex, "delimiter must not be code");
1.23 paf 207:
1.126 paf 208: size_t pos_after=0;
209: string.split(result, pos_after, delim_value.as_string());
1.19 paf 210: }
211:
1.118 paf 212: #define SPLIT_LEFT 0x0001
213: #define SPLIT_RIGHT 0x0010
214: #define SPLIT_HORIZONTAL 0x0100
215: #define SPLIT_VERTICAL 0x1000
216:
1.126 paf 217: static int split_options(const String* options) {
1.118 paf 218: struct Split_option {
1.126 paf 219: const char* keyL;
220: const char* keyU;
1.118 paf 221: int setBit;
222: int checkBit;
223: } split_option[]={
224: {"l", "L", SPLIT_LEFT, SPLIT_RIGHT}, // 0xVHRL
225: {"r", "R", SPLIT_RIGHT, SPLIT_LEFT},
226: {"h", "H", SPLIT_HORIZONTAL, SPLIT_VERTICAL},
227: {"v", "V", SPLIT_VERTICAL, SPLIT_HORIZONTAL},
1.130 paf 228: {0, 0, 0, 0}
1.118 paf 229: };
230:
231: int result=0;
1.126 paf 232: if(options) {
1.118 paf 233: for(Split_option *o=split_option; o->keyL; o++)
1.126 paf 234: if(options->pos(o->keyL)!=STRING_NOT_FOUND
235: || (o->keyU && options->pos(o->keyU)!=STRING_NOT_FOUND)) {
1.118 paf 236: if(result & o->checkBit)
1.153 misha 237: throw Exception(PARSER_RUNTIME,
1.118 paf 238: options,
239: "conflicting split options");
240: result |= o->setBit;
241: }
242: }
243:
244: return result;
245: }
246:
1.156 misha 247: static Table& split_vertical(ArrayString& pieces, bool right, const String* column_name) {
1.126 paf 248: Table::columns_type columns(new ArrayString);
1.156 misha 249: *columns+=column_name;
1.19 paf 250:
1.126 paf 251: Table& table=*new Table(columns, pieces.count());
1.118 paf 252: if(right) { // right
1.126 paf 253: for(int i=pieces.count(); --i>=0; ) {
254: Table::element_type row(new ArrayString);
255: *row+=pieces[i];
256: table+=row;
1.118 paf 257: }
258: } else { // left
1.126 paf 259: Array_iterator<const String*> i(pieces);
1.118 paf 260: while(i.has_next()) {
1.126 paf 261: Table::element_type row(new ArrayString);
262: *row+=i.next();
263: table+=row;
1.118 paf 264: }
1.61 parser 265: }
1.118 paf 266:
1.126 paf 267: return table;
1.19 paf 268: }
269:
1.128 paf 270: static Table& split_horizontal(ArrayString& pieces, bool right) {
1.126 paf 271: Table& table=*new Table(Table::columns_type(0) /* nameless */);
272: Table::element_type row(new ArrayString(pieces.count()));
1.118 paf 273: if(right) { // right
1.131 paf 274: for(int i=pieces.count(); --i>=0; )
1.126 paf 275: *row+=pieces[i];
1.118 paf 276: } else { // left
1.126 paf 277: for(Array_iterator<const String*> i(pieces); i.has_next(); )
278: *row+=i.next();
1.118 paf 279: }
1.126 paf 280: table+=row;
1.118 paf 281:
1.126 paf 282: return table;
1.118 paf 283: }
284:
1.126 paf 285: static void split_with_options(Request& r, MethodParams& params,
1.118 paf 286: int bits) {
1.126 paf 287: const String& string=GET_SELF(r, VString).string();
1.176 misha 288: size_t params_count=params.count();
1.19 paf 289:
1.126 paf 290: ArrayString pieces;
1.128 paf 291: split_list(params, 0, string, pieces);
1.19 paf 292:
1.118 paf 293: if(!bits) {
1.126 paf 294: const String* options=0;
1.176 misha 295: if(params_count>1)
1.187 misha 296: options=¶ms.as_string(1, OPTIONS_MUST_NOT_BE_CODE);
1.126 paf 297:
1.118 paf 298: bits=split_options(options);
299: }
1.21 paf 300:
1.118 paf 301: bool right=(bits & SPLIT_RIGHT) != 0;
302: bool horizontal=(bits & SPLIT_HORIZONTAL) !=0;
1.156 misha 303:
304: const String* column_name=0;
1.176 misha 305: if(params_count>2){
1.156 misha 306: column_name=¶ms.as_string(2, COLUMN_NAME_MUST_BE_STRING);
1.178 misha 307: if (horizontal && !column_name->is_empty())
1.156 misha 308: throw Exception(PARSER_RUNTIME,
309: column_name,
310: "column name can't be specified with horisontal split");
311: }
1.178 misha 312: if(!column_name || column_name->is_empty())
1.156 misha 313: column_name=new String("piece");
314:
315: Table& table=horizontal?split_horizontal(pieces, right):split_vertical(pieces, right, column_name);
1.17 paf 316:
1.126 paf 317: r.write_no_lang(*new VTable(&table));
1.118 paf 318: }
1.126 paf 319: static void _split(Request& r, MethodParams& params) {
320: split_with_options(r, params, 0 /* maybe-determine from param #2 */);
1.118 paf 321: }
1.126 paf 322: static void _lsplit(Request& r, MethodParams& params) {
323: split_with_options(r, params, SPLIT_LEFT);
1.118 paf 324: }
1.126 paf 325: static void _rsplit(Request& r, MethodParams& params) {
326: split_with_options(r, params, SPLIT_RIGHT);
1.17 paf 327: }
328:
1.126 paf 329: static void search_action(Table& table, Table::element_type row, int, int, int, int, void *) {
1.28 paf 330: if(row)
331: table+=row;
1.27 paf 332: }
333:
1.74 parser 334: #ifndef DOXYGEN
1.27 paf 335: struct Replace_action_info {
1.181 misha 336: Request* request;
337: const String* src;
338: String* dest;
1.126 paf 339: VTable* vtable;
340: Value* replacement_code;
1.27 paf 341: };
1.74 parser 342: #endif
1.105 paf 343: /// @todo they can do $global[$result] there, getting pointer to later-invalid local var, kill this
1.126 paf 344: static void replace_action(Table& table, ArrayString* row,
1.181 misha 345: int prestart, int prefinish,
346: int poststart, int postfinish,
347: void *info) {
1.27 paf 348: Replace_action_info& ai=*static_cast<Replace_action_info *>(info);
1.31 paf 349: if(row) { // begin&middle
1.104 paf 350: // piece from last match['prestart'] to beginning of this match['prefinish']
351: if(prestart!=prefinish)
352: *ai.dest << ai.src->mid(prestart, prefinish);//ai.dest->APPEND_CONST("-");
1.51 parser 353: // store found parts in one-record VTable
1.126 paf 354: if(table.count()) // middle
1.32 paf 355: table.put(0, row);
356: else // begin
1.30 paf 357: table+=row;
1.181 misha 358:
1.30 paf 359: { // execute 'replacement_code' in 'table' context
1.181 misha 360: if(ai.replacement_code){
361: ai.vtable->set_table(table);
362: *ai.dest << ai.request->process_to_string(*ai.replacement_code);
363: }
1.29 paf 364: }
365: } else // end
1.104 paf 366: *ai.dest << ai.src->mid(poststart, postfinish);
1.27 paf 367: }
368:
1.126 paf 369: static void _match(Request& r, MethodParams& params) {
1.174 misha 370: size_t params_count=params.count();
371:
1.126 paf 372: Value& regexp=params.as_no_junction(0, "regexp must not be code");
1.187 misha 373: Value* options=(params_count>1)?¶ms.as_no_junction(1, OPTIONS_MUST_NOT_BE_CODE):0;
1.174 misha 374:
375: VRegex* vregex;
376: VRegexCleaner vrcleaner;
1.126 paf 377:
1.188 misha 378: if(Value* value=regexp.as(VREGEX_TYPE)){
1.174 misha 379: if(options && options->is_defined())
380: throw Exception(PARSER_RUNTIME,
381: 0,
382: "you can not specify regex-object and options together"
383: );
384: vregex=static_cast<VRegex*>(value);
385: } else {
386: vregex=new VRegex(r.charsets.source(),
387: ®exp.as_string(),
388: (options)?(&options->as_string()):0);
1.175 misha 389: vregex->study();
1.174 misha 390: vrcleaner.vregex=vregex;
391: }
1.126 paf 392:
393: Temp_lang temp_lang(r, String::L_PASS_APPENDED);
394: const String& src=GET_SELF(r, VString).string();
1.152 misha 395: int matches_count=0;
1.174 misha 396:
397: if(params_count<3) { // search
398: Table* table=src.match(vregex,
1.64 parser 399: search_action, 0,
1.152 misha 400: matches_count);
1.174 misha 401:
1.152 misha 402: if(table){
1.176 misha 403: r.write_no_lang(*new VTable(table));
1.152 misha 404: } else {
1.173 misha 405: r.write_no_lang(*new VInt(matches_count));
1.152 misha 406: }
407:
1.27 paf 408: } else { // replace
1.181 misha 409:
410: Value* replacement_code=0;
411: bool is_junction=false;
412:
413: Value* replacement=¶ms[2];
414: if(replacement->get_junction()){
415: replacement_code=replacement;
416: is_junction=true;
417: } else if(replacement->is_string()){
418: if(replacement->is_defined())
419: replacement_code=replacement;
420: } else if(!replacement->is_void())
421: throw Exception(PARSER_RUNTIME,
422: 0,
423: "replacement option should be junction or string");
1.106 paf 424:
1.192 misha 425: Value* default_code=(params_count==4)?¶ms.as_junction(3, "default value must be code"):0;
426:
1.126 paf 427: String result;
428: VTable* vtable=new VTable;
1.130 paf 429: Replace_action_info info={
430: &r,
431: &src,
432: &result,
433: vtable,
1.181 misha 434: replacement_code
1.130 paf 435: };
1.181 misha 436:
1.191 misha 437: if(is_junction){
438: Temp_value_element temp( *replacement_code->get_junction()->method_frame, match_var_name, vtable);
439: src.match(vregex, replace_action, &info, matches_count);
440: } else {
441: src.match(vregex, replace_action, &info, matches_count);
442: }
1.181 misha 443:
1.192 misha 444: if(!matches_count && default_code)
445: r.process_write(*default_code);
446: else
447: r.write_assign_lang(result);
1.27 paf 448: }
1.24 paf 449: }
450:
1.128 paf 451: static void change_case(Request& r, MethodParams&,
1.49 parser 452: String::Change_case_kind kind) {
1.126 paf 453: const String& src=GET_SELF(r, VString).string();
1.49 parser 454:
1.126 paf 455: r.write_assign_lang(src.change_case(r.charsets.source(), kind));
1.49 parser 456: }
1.126 paf 457: static void _upper(Request& r, MethodParams& params) {
458: change_case(r, params, String::CC_UPPER);
1.49 parser 459: }
1.126 paf 460: static void _lower(Request& r, MethodParams& params) {
461: change_case(r, params, String::CC_LOWER);
1.49 parser 462: }
463:
1.65 parser 464: #ifndef DOXYGEN
1.126 paf 465: class String_sql_event_handlers: public SQL_Driver_query_event_handlers {
466: const String& statement_string; const char* statement_cstr;
467: bool got_column;
1.65 parser 468: public:
1.126 paf 469: bool got_cell;
470: String& result;
471: public:
472: String_sql_event_handlers(
473: const String& astatement_string, const char* astatement_cstr):
474: statement_string(astatement_string), statement_cstr(astatement_cstr),
475: got_column(false),
476: got_cell(false),
477: result(*new String) {}
1.65 parser 478:
1.128 paf 479: bool add_column(SQL_Error& error, const char* /*str*/, size_t /*length*/) {
1.124 paf 480: if(got_column) {
1.153 misha 481: error=SQL_Error(PARSER_RUNTIME,
1.126 paf 482: //statement_string,
1.65 parser 483: "result must contain exactly one column");
1.124 paf 484: return true;
485: }
1.65 parser 486: got_column=true;
1.124 paf 487: return false;
1.65 parser 488: }
1.124 paf 489: bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; }
490: bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; }
1.126 paf 491: bool add_row_cell(SQL_Error& error, const char* str, size_t length) {
1.124 paf 492: if(got_cell) {
1.153 misha 493: error=SQL_Error(PARSER_RUNTIME,
1.126 paf 494: //statement_string,
1.65 parser 495: "result must not contain more then one row");
1.124 paf 496: return true;
497: }
1.65 parser 498:
1.124 paf 499: try {
500: got_cell=true;
1.126 paf 501: result.append_know_length(str, length, String::L_TAINTED);
1.124 paf 502: return false;
503: } catch(...) {
504: error=SQL_Error("exception occured in String_sql_event_handlers::add_row_cell");
505: return true;
506: }
1.65 parser 507: }
508: };
509: #endif
1.141 paf 510: extern String sql_bind_name;
1.126 paf 511: extern String sql_limit_name;
512: extern String sql_offset_name;
513: extern String sql_default_name;
514: extern String sql_distinct_name;
1.141 paf 515: extern int marshal_binds(HashStringValue& hash, SQL_Driver::Placeholder*& placeholders);
516: extern void unmarshal_bind_updates(HashStringValue& hash, int placeholder_count, SQL_Driver::Placeholder* placeholders);
517:
1.126 paf 518: const String* sql_result_string(Request& r, MethodParams& params,
519: HashStringValue*& options, Value*& default_code) {
520: Value& statement=params.as_junction(0, "statement must be code");
1.53 parser 521:
1.141 paf 522: HashStringValue* bind=0;
1.160 misha 523: ulong limit=SQL_NO_LIMIT;
1.70 parser 524: ulong offset=0;
1.81 parser 525: default_code=0;
1.126 paf 526: if(params.count()>1) {
527: Value& voptions=params.as_no_junction(1, "options must be hash, not code");
1.145 paf 528: if(voptions.is_defined() && !voptions.is_string())
1.130 paf 529: if((options=voptions.get_hash())) {
1.141 paf 530: int valid_options=0;
531: if(Value* vbind=options->get(sql_bind_name)) {
532: valid_options++;
533: bind=vbind->get_hash();
534: }
535: if(Value* vlimit=options->get(sql_limit_name)) {
1.161 misha 536: valid_options++;
537: limit=(ulong)r.process_to_value(*vlimit).as_double();
1.141 paf 538: }
539: if(Value* voffset=options->get(sql_offset_name)) {
540: valid_options++;
1.99 paf 541: offset=(ulong)r.process_to_value(*voffset).as_double();
1.141 paf 542: }
1.130 paf 543: if((default_code=options->get(sql_default_name))) {
1.141 paf 544: valid_options++;
1.81 parser 545: }
1.141 paf 546: if(valid_options!=options->count())
1.194 misha 547: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.73 parser 548: } else
1.194 misha 549: throw Exception(PARSER_RUNTIME, 0, OPTIONS_MUST_BE_HASH);
1.70 parser 550: } else
551: options=0;
552:
1.141 paf 553: SQL_Driver::Placeholder* placeholders=0;
554: uint placeholders_count=0;
555: if(bind)
556: placeholders_count=marshal_binds(*bind, placeholders);
557:
1.126 paf 558: Temp_lang temp_lang(r, String::L_SQL);
1.99 paf 559: const String& statement_string=r.process_to_string(statement);
1.185 misha 560: const char* statement_cstr=statement_string.untaint_cstr(r.flang, r.connection());
1.183 misha 561:
1.126 paf 562: String_sql_event_handlers handlers(statement_string, statement_cstr);
1.160 misha 563:
1.126 paf 564: r.connection()->query(
1.140 paf 565: statement_cstr,
1.142 paf 566: placeholders_count, placeholders,
1.140 paf 567: offset, limit,
1.117 paf 568: handlers,
569: statement_string);
1.53 parser 570:
1.141 paf 571: if(bind)
572: unmarshal_bind_updates(*bind, placeholders_count, placeholders);
573:
1.65 parser 574: if(!handlers.got_cell)
575: return 0; // no lines, caller should return second param[default value]
1.62 parser 576:
1.126 paf 577: return &handlers.result;
1.53 parser 578: }
579:
1.126 paf 580: static void _sql(Request& r, MethodParams& params) {
1.53 parser 581:
1.126 paf 582: HashStringValue* options;
583: Value* default_code;
584: const String* string=sql_result_string(r, params, options, default_code);
1.62 parser 585: if(!string) {
1.81 parser 586: if(default_code) {
1.99 paf 587: string=&r.process_to_string(*default_code);
1.68 parser 588: } else
1.153 misha 589: throw Exception(PARSER_RUNTIME,
1.126 paf 590: 0,
1.81 parser 591: "produced no result, but no default option specified");
1.62 parser 592: }
1.100 paf 593:
1.102 paf 594: r.write_assign_lang(*string);
1.53 parser 595: }
596:
1.126 paf 597: static void _replace(Request& r, MethodParams& params) {
598: const String& src=GET_SELF(r, VString).string();
1.71 parser 599:
1.157 misha 600: Table* table=params.as_no_junction(0, PARAM_MUST_NOT_BE_CODE).get_table();
1.71 parser 601: if(!table)
1.153 misha 602: throw Exception(PARSER_RUNTIME,
1.126 paf 603: 0,
1.71 parser 604: "parameter must be table");
605:
606: Dictionary dict(*table);
1.126 paf 607: r.write_assign_lang(src.replace(dict));
1.71 parser 608: }
1.79 parser 609:
1.126 paf 610: static void _save(Request& r, MethodParams& params) {
1.189 misha 611: bool do_append=false;
612: Charset* asked_charset=0;
613:
614: size_t file_name_index=0;
615: if(params.count()>1)
616: if(HashStringValue* options=params.as_no_junction(1, "second parameter should be string or hash").get_hash()){
1.190 misha 617: int valid_options=0;
1.189 misha 618: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
619: asked_charset=&::charsets.get(vcharset_name->as_string().change_case(r.charsets.source(), String::CC_UPPER));
620: valid_options++;
621: }
622: if(Value* vappend=options->get(MODE_APPEND)){
623: do_append=vappend->as_bool();
624: valid_options++;
625: }
626: if(valid_options != options->count())
1.194 misha 627: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.189 misha 628: } else {
629: const String& mode=params.as_string(0, "mode must be string");
630: if(mode==MODE_APPEND){
631: do_append=true;
632: file_name_index++;
633: } else
634: throw Exception(PARSER_RUNTIME,
635: &mode,
636: "unknown mode, must be 'append'");
637: }
1.79 parser 638:
1.189 misha 639: const String& file_name=params.as_string(file_name_index, FILE_NAME_MUST_BE_STRING);
1.126 paf 640: const String& src=GET_SELF(r, VString).string();
1.79 parser 641:
1.189 misha 642: String::Body sbody=src.cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false/*no error if none*/));
1.87 paf 643:
1.79 parser 644: // write
1.189 misha 645: file_write(r.charsets, r.absolute(file_name), sbody.cstr(), sbody.length(), true, do_append, asked_charset);
1.79 parser 646: }
647:
1.126 paf 648: static void _normalize(Request& r, MethodParams&) {
649: const String& src=GET_SELF(r, VString).string();
650:
651: r.write_assign_lang(src);
1.109 paf 652: }
653:
1.133 paf 654: static void _trim(Request& r, MethodParams& params) {
655: const String& src=GET_SELF(r, VString).string();
656:
657: String::Trim_kind kind=String::TRIM_BOTH;
1.176 misha 658: size_t params_count=params.count();
1.133 paf 659: const char* chars=0;
1.176 misha 660: if(params_count>0) {
661: const String& skind=params.as_string(0, "'where' must be string");
1.178 misha 662: if(!skind.is_empty())
1.162 misha 663: if(skind==TRIM_BOTH_OPTION)
664: kind=String::TRIM_BOTH;
665: else if(skind==TRIM_START_OPTION || skind=="start")
1.137 paf 666: kind=String::TRIM_START;
1.162 misha 667: else if(skind==TRIM_END_OPTION || skind=="end")
1.137 paf 668: kind=String::TRIM_END;
669: else
1.153 misha 670: throw Exception(PARSER_RUNTIME,
1.137 paf 671: &skind,
672: "'kind' must be one of "TRIM_START_OPTION", "TRIM_BOTH_OPTION", "TRIM_END_OPTION);
1.133 paf 673:
1.176 misha 674: if(params_count>1) {
1.136 paf 675: const String& schars=params.as_string(1, "'chars' must be string");
1.178 misha 676: if(!schars.is_empty())
1.137 paf 677: chars=schars.cstr();
1.136 paf 678: }
1.133 paf 679: }
680:
1.182 misha 681: r.write_assign_lang(src.trim(kind, chars, &r.charsets.source()));
1.133 paf 682: }
683:
1.139 paf 684: static void _append(Request& r, MethodParams& params) {
685: // c=a+b
686: VString& va=GET_SELF(r, VString);
687: const String& a=va.string();
1.155 misha 688: const String& b=params.as_string(0, PARAMETER_MUST_BE_STRING);
1.139 paf 689: String& c=*new String(a);
690: c.append(b, String::L_PASS_APPENDED);
691: va.set_string(c);
692: }
693:
1.146 paf 694: static void _base64(Request& r, MethodParams& params) {
695: if(params.count()) {
1.169 misha 696: // decode: ^string:base64[encoded]
1.155 misha 697: const char* cstr=params.as_string(0, PARAMETER_MUST_BE_STRING).cstr();
1.169 misha 698: char* decoded=0;
699: size_t length=0;
700: pa_base64_decode(cstr, strlen(cstr), decoded, length);
701: if(decoded && length){
702: if(memchr((const char*)decoded, 0, length))
703: throw Exception(PARSER_RUNTIME,
704: 0,
705: "Invalid \\x00 character found while decode to string. Decode it to file instead.");
706:
707: fix_line_breaks(decoded, length);
1.179 misha 708: if(length)
1.180 misha 709: r.write_assign_lang(*new String(decoded, String::L_TAINTED));
1.169 misha 710: }
1.147 paf 711: } else {
1.169 misha 712: // encode: ^str.base64[]
1.148 paf 713: VString& self=GET_SELF(r, VString);
714: const char* cstr=self.string().cstr();
1.147 paf 715: const char* encoded=pa_base64_encode(cstr, strlen(cstr));
1.180 misha 716: r.write_assign_lang(*new String(encoded, String::L_TAINTED/*once ?param=base64(something) was needed*/));
1.146 paf 717: }
718: }
719:
1.167 misha 720: static void _escape(Request& r, MethodParams&){
721: const String& src=GET_SELF(r, VString).string();
722: r.write_assign_lang(src.escape(r.charsets.source()));
723: }
724:
725: static void _unescape(Request& r, MethodParams& params){
726: const String& src=params.as_string(0, PARAMETER_MUST_BE_STRING);
1.193 misha 727: if(const char* result=unescape_chars(src.cstr(), src.length(), &r.charsets.source(), true))
1.167 misha 728: r.write_assign_lang(*new String(result));
729: }
730:
1.41 paf 731: // constructor
732:
1.126 paf 733: MString::MString(): Methoded("string") {
1.1 paf 734: // ^string.length[]
1.41 paf 735: add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0);
1.6 paf 736:
1.1 paf 737: // ^string.int[]
1.72 parser 738: // ^string.int(default)
739: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1);
1.1 paf 740: // ^string.double[]
1.72 parser 741: // ^string.double(default)
742: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1);
1.151 misha 743: // ^void.bool[]
744: // ^void.bool(default)
745: add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1);
1.9 paf 746:
1.165 misha 747: // ^string.format[format]
1.41 paf 748: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.14 paf 749:
1.15 paf 750: // ^string.left(n)
1.41 paf 751: add_native_method("left", Method::CT_DYNAMIC, _left, 1, 1);
1.15 paf 752: // ^string.right(n)
1.41 paf 753: add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1);
1.165 misha 754: // ^string.mid(p)
1.15 paf 755: // ^string.mid(p;n)
1.82 parser 756: add_native_method("mid", Method::CT_DYNAMIC, _mid, 1, 2);
1.16 paf 757:
758: // ^string.pos[substr]
1.165 misha 759: // ^string.pos[substr](n)
760: add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 2);
1.17 paf 761:
1.118 paf 762: // ^string.split[delim]
763: // ^string.split[delim][options]
1.156 misha 764: // ^string.split[delim][options][column name]
765: add_native_method("split", Method::CT_DYNAMIC, _split, 1, 3);
1.118 paf 766: // old names for backward compatibility
767: // ^string.lsplit[delim]
768: add_native_method("lsplit", Method::CT_DYNAMIC, _lsplit, 1, 1);
769: // ^string.rsplit[delim]
770: add_native_method("rsplit", Method::CT_DYNAMIC, _rsplit, 1, 1);
771:
1.32 paf 772: // ^string.match[regexp][options]
773: // ^string.match[regexp][options]{replacement-code}
1.192 misha 774: // ^string.match[regexp][options]{replacement-code}{code-if-nothing-is-found}
775: add_native_method("match", Method::CT_DYNAMIC, _match, 1, 4);
1.49 parser 776:
1.165 misha 777: // ^string.upper[]
1.49 parser 778: add_native_method("upper", Method::CT_DYNAMIC, _upper, 0, 0);
1.165 misha 779: // ^string.lower[]
1.49 parser 780: add_native_method("lower", Method::CT_DYNAMIC, _lower, 0, 0);
1.53 parser 781:
1.189 misha 782: // ^string:sql{query}
783: // ^string:sql{query}[options hash]
1.67 parser 784: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.71 parser 785:
786: // ^string.replace[table]
787: add_native_method("replace", Method::CT_DYNAMIC, _replace, 1, 1);
1.79 parser 788:
1.189 misha 789: // ^string.save[append][file]
790: // ^string.save[file]
791: // ^string.save[file][$.append(true) $.charset[...]]
1.87 paf 792: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2);
1.109 paf 793:
1.112 paf 794: // ^string.normalize[]
795: add_native_method("normalize", Method::CT_DYNAMIC, _normalize, 0, 0);
1.133 paf 796:
797: // ^string.trim[[start|both|end][;chars]]
798: add_native_method("trim", Method::CT_DYNAMIC, _trim, 0, 2);
1.139 paf 799:
800: // ^string.append[string]
801: add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1);
1.146 paf 802:
803: // ^string.base64[] << encode
1.147 paf 804: // ^string:base64[encoded string] << decode
1.146 paf 805: add_native_method("base64", Method::CT_ANY, _base64, 0, 1);
1.167 misha 806:
1.168 misha 807: // ^string.js-escape[]
1.189 misha 808: add_native_method("js-escape", Method::CT_ANY, _escape, 0, 0);
809:
1.168 misha 810: // ^string:js-unescape[escaped%uXXXXstring]
811: add_native_method("js-unescape", Method::CT_STATIC, _unescape, 1, 1);
1.2 paf 812: }
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