Annotation of parser3/src/classes/string.C, revision 1.224
1.24 paf 1: /** @file
2: Parser: @b string parser class.
3:
1.222 moko 4: Copyright (c) 2001-2015 Art. Lebedev Studio (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:
1.43 paf 8: #include "classes.h"
1.126 paf 9: #include "pa_vmethod_frame.h"
10:
1.1 paf 11: #include "pa_request.h"
12: #include "pa_vdouble.h"
13: #include "pa_vint.h"
1.17 paf 14: #include "pa_vtable.h"
1.25 paf 15: #include "pa_vbool.h"
1.27 paf 16: #include "pa_string.h"
1.53 parser 17: #include "pa_sql_connection.h"
1.71 parser 18: #include "pa_dictionary.h"
1.119 paf 19: #include "pa_vmethod_frame.h"
1.174 misha 20: #include "pa_vregex.h"
1.189 misha 21: #include "pa_charsets.h"
1.1 paf 22:
1.224 ! moko 23: volatile const char * IDENT_STRING_C="$Id: string.C,v 1.223 2015/11/16 18:27:15 moko Exp $";
1.203 moko 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:
1.224 ! moko 34: DECLARE_CLASS_VAR(string, new MString);
1.126 paf 35:
1.196 moko 36: // void class, inherited from string and thus should be inited afterwards
37:
38: class MVoid: public Methoded {
39: public:
40: MVoid();
41: };
42:
43: // void global variable should be after string global variable
44:
1.224 ! moko 45: DECLARE_CLASS_VAR(void, new MVoid);
1.196 moko 46:
1.126 paf 47: // defines for statics
48:
49: #define MATCH_VAR_NAME "match"
1.162 misha 50: #define TRIM_START_OPTION "left"
51: #define TRIM_END_OPTION "right"
1.133 paf 52: #define TRIM_BOTH_OPTION "both"
1.126 paf 53:
1.189 misha 54: #define MODE_APPEND "append"
55:
1.220 moko 56: #define UNESCAPE_MODE_JS "js"
57: #define UNESCAPE_MODE_URI "uri"
58:
1.126 paf 59: // statics
60:
61: static const String match_var_name(MATCH_VAR_NAME);
62:
1.1 paf 63: // methods
64:
1.126 paf 65: static void _length(Request& r, MethodParams&) {
1.163 misha 66: double result=GET_SELF(r, VString).string().length(r.charsets.source());
1.126 paf 67: r.write_no_lang(*new VDouble(result));
1.1 paf 68: }
69:
1.126 paf 70: static void _int(Request& r, MethodParams& params) {
71: const String& self_string=GET_SELF(r, VString).string();
1.72 parser 72: int converted;
1.206 moko 73:
74: if(self_string.is_empty()) {
1.144 paf 75: if(params.count()>0)
76: converted=params.as_int(0, "default must be int", r); // (default)
1.84 parser 77: else
1.206 moko 78: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
79: } else {
80: try {
81: converted=self_string.as_int();
82: } catch(...) { // convert problem
83: if(params.count()>0)
84: converted=params.as_int(0, "default must be int", r); // (default)
85: else
86: rethrow; // we have a problem when no default
87: }
1.72 parser 88: }
1.206 moko 89:
1.126 paf 90: r.write_no_lang(*new VInt(converted));
1.1 paf 91: }
92:
1.126 paf 93: static void _double(Request& r, MethodParams& params) {
94: const String& self_string=GET_SELF(r, VString).string();
1.206 moko 95:
96: if(self_string.is_empty()) {
1.144 paf 97: if(params.count()>0)
1.223 moko 98: r.write_no_lang(*new VDouble(params.as_double(0, "default must be double", r))); // (default)
1.84 parser 99: else
1.206 moko 100: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
101: } else {
102: try {
1.223 moko 103: r.write_no_lang(*new VDouble(self_string.as_double()));
1.206 moko 104: } catch(...) { // convert problem
105: if(params.count()>0)
1.223 moko 106: r.write_no_lang(*new VDouble(params.as_double(0, "default must be double", r))); // (default)
1.206 moko 107: else
108: rethrow; // we have a problem when no default
109: }
1.72 parser 110: }
1.1 paf 111: }
112:
1.151 misha 113: static void _bool(Request& r, MethodParams& params) {
114: const String& self_string=GET_SELF(r, VString).string();
115: bool converted;
1.206 moko 116: const char *str=self_string.cstr();
117:
118: if(self_string.is_empty()) {
119: if(params.count()>0)
120: converted=params.as_bool(0, "default must be bool", r); // (default)
121: else
122: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
1.207 moko 123: } else if( (str[0]=='T' || str[0]=='t') && (str[1]=='R' || str[1]=='r') && (str[2]=='U' || str[2]=='u') &&
1.206 moko 124: (str[3]=='E' || str[3]=='e') && str[4]==0 ) { // "true"
125: converted=true;
1.207 moko 126: } else if( (str[0]=='F' || str[0]=='f') && (str[1]=='A' || str[1]=='a') && (str[2]=='L' || str[2]=='l') &&
1.206 moko 127: (str[3]=='S' || str[3]=='s') && (str[4]=='E' || str[4]=='e') && str[5]==0 ) { // "false"
128: converted=false;
129: } else {
1.158 misha 130: try {
131: converted=self_string.as_bool();
1.206 moko 132: } catch(...) { // convert problem
133: if(params.count()>0)
134: converted=params.as_bool(0, "default must be bool", r); // (default)
135: else
136: rethrow; // we have a problem when no default
1.158 misha 137: }
1.151 misha 138: }
139:
1.172 misha 140: r.write_no_lang(VBool::get(converted));
1.151 misha 141: }
142:
1.126 paf 143: /*not static*/void _string_format(Request& r, MethodParams& params) {
1.9 paf 144:
1.126 paf 145: Value& fmt_maybe_code=params[0];
1.95 paf 146: // for some time due to stupid {} in original design
1.99 paf 147: const String& fmt=r.process_to_string(fmt_maybe_code);
1.9 paf 148:
1.159 misha 149: const char* buf=format(r.get_self().as_double(), fmt.trim().cstrm());
1.63 parser 150:
1.126 paf 151: r.write_no_lang(String(buf));
1.9 paf 152: }
1.11 paf 153:
1.126 paf 154: static void _left(Request& r, MethodParams& params) {
1.138 paf 155: ssize_t sn=params.as_int(0, "n must be int", r);
1.126 paf 156: const String& string=GET_SELF(r, VString).string();
1.216 moko 157: r.write_assign_lang(sn<0 ? string : string.mid(r.charsets.source(), 0, (size_t)sn));
1.15 paf 158: }
159:
1.126 paf 160: static void _right(Request& r, MethodParams& params) {
1.217 moko 161: ssize_t sn=params.as_int(0, "n must be int", r);
1.216 moko 162: if(sn>0){
163: size_t n=(size_t)sn;
164: const String& string=GET_SELF(r, VString).string();
165: size_t length=string.length(r.charsets.source());
166: r.write_assign_lang(n<length ? string.mid(r.charsets.source(), length-n, length, length) : string);
167: }
1.15 paf 168: }
169:
1.126 paf 170: static void _mid(Request& r, MethodParams& params) {
171: const String& string=GET_SELF(r, VString).string();
1.83 parser 172:
1.138 paf 173: ssize_t sbegin=params.as_int(0, "p must be int", r);
174: if(sbegin<0)
1.153 misha 175: throw Exception(PARSER_RUNTIME,
1.138 paf 176: 0,
177: "p(%d) must be >=0", sbegin);
178: size_t begin=(size_t)sbegin;
179:
180: size_t end;
1.164 misha 181: size_t length=0;
1.138 paf 182: if(params.count()>1) {
183: ssize_t sn=params.as_int(1, "n must be int", r);
184: if(sn<0)
1.153 misha 185: throw Exception(PARSER_RUNTIME,
1.138 paf 186: 0,
187: "n(%d) must be >=0", sn);
188: end=begin+(size_t)sn;
1.164 misha 189: } else {
190: length=string.length(r.charsets.source());
191: end=length;
192: }
1.163 misha 193:
1.164 misha 194: r.write_assign_lang(string.mid(r.charsets.source(), begin, end, length));
1.15 paf 195: }
196:
1.126 paf 197: static void _pos(Request& r, MethodParams& params) {
198: Value& substr=params.as_no_junction(0, "substr must not be code");
1.16 paf 199:
1.126 paf 200: const String& string=GET_SELF(r, VString).string();
1.165 misha 201: ssize_t offset=0;
202: if(params.count()>1){
203: offset=params.as_int(1, "n must be int", r);
204: if(offset<0)
205: throw Exception(PARSER_RUNTIME,
206: 0,
207: "n(%d) must be >=0", offset);
208: }
209:
1.166 misha 210: r.write_no_lang(*new VInt((int)string.pos(r.charsets.source(), substr.as_string(), (size_t)offset)));
1.16 paf 211: }
212:
1.128 paf 213: static void split_list(MethodParams& params, int paramIndex,
1.126 paf 214: const String& string,
215: ArrayString& result) {
216: Value& delim_value=params.as_no_junction(paramIndex, "delimiter must not be code");
1.23 paf 217:
1.126 paf 218: size_t pos_after=0;
219: string.split(result, pos_after, delim_value.as_string());
1.19 paf 220: }
221:
1.118 paf 222: #define SPLIT_LEFT 0x0001
223: #define SPLIT_RIGHT 0x0010
224: #define SPLIT_HORIZONTAL 0x0100
225: #define SPLIT_VERTICAL 0x1000
226:
1.126 paf 227: static int split_options(const String* options) {
1.118 paf 228: struct Split_option {
1.126 paf 229: const char* keyL;
230: const char* keyU;
1.118 paf 231: int setBit;
232: int checkBit;
233: } split_option[]={
234: {"l", "L", SPLIT_LEFT, SPLIT_RIGHT}, // 0xVHRL
235: {"r", "R", SPLIT_RIGHT, SPLIT_LEFT},
236: {"h", "H", SPLIT_HORIZONTAL, SPLIT_VERTICAL},
237: {"v", "V", SPLIT_VERTICAL, SPLIT_HORIZONTAL},
1.130 paf 238: {0, 0, 0, 0}
1.118 paf 239: };
240:
241: int result=0;
1.126 paf 242: if(options) {
1.118 paf 243: for(Split_option *o=split_option; o->keyL; o++)
1.126 paf 244: if(options->pos(o->keyL)!=STRING_NOT_FOUND
245: || (o->keyU && options->pos(o->keyU)!=STRING_NOT_FOUND)) {
1.118 paf 246: if(result & o->checkBit)
1.153 misha 247: throw Exception(PARSER_RUNTIME,
1.118 paf 248: options,
249: "conflicting split options");
250: result |= o->setBit;
251: }
252: }
253:
254: return result;
255: }
256:
1.156 misha 257: static Table& split_vertical(ArrayString& pieces, bool right, const String* column_name) {
1.126 paf 258: Table::columns_type columns(new ArrayString);
1.156 misha 259: *columns+=column_name;
1.19 paf 260:
1.126 paf 261: Table& table=*new Table(columns, pieces.count());
1.118 paf 262: if(right) { // right
1.126 paf 263: for(int i=pieces.count(); --i>=0; ) {
264: Table::element_type row(new ArrayString);
265: *row+=pieces[i];
266: table+=row;
1.118 paf 267: }
268: } else { // left
1.126 paf 269: Array_iterator<const String*> i(pieces);
1.118 paf 270: while(i.has_next()) {
1.126 paf 271: Table::element_type row(new ArrayString);
272: *row+=i.next();
273: table+=row;
1.118 paf 274: }
1.61 parser 275: }
1.118 paf 276:
1.126 paf 277: return table;
1.19 paf 278: }
279:
1.128 paf 280: static Table& split_horizontal(ArrayString& pieces, bool right) {
1.126 paf 281: Table& table=*new Table(Table::columns_type(0) /* nameless */);
282: Table::element_type row(new ArrayString(pieces.count()));
1.118 paf 283: if(right) { // right
1.131 paf 284: for(int i=pieces.count(); --i>=0; )
1.126 paf 285: *row+=pieces[i];
1.118 paf 286: } else { // left
1.126 paf 287: for(Array_iterator<const String*> i(pieces); i.has_next(); )
288: *row+=i.next();
1.118 paf 289: }
1.126 paf 290: table+=row;
1.118 paf 291:
1.126 paf 292: return table;
1.118 paf 293: }
294:
1.126 paf 295: static void split_with_options(Request& r, MethodParams& params,
1.118 paf 296: int bits) {
1.126 paf 297: const String& string=GET_SELF(r, VString).string();
1.176 misha 298: size_t params_count=params.count();
1.19 paf 299:
1.126 paf 300: ArrayString pieces;
1.128 paf 301: split_list(params, 0, string, pieces);
1.19 paf 302:
1.118 paf 303: if(!bits) {
1.126 paf 304: const String* options=0;
1.176 misha 305: if(params_count>1)
1.187 misha 306: options=¶ms.as_string(1, OPTIONS_MUST_NOT_BE_CODE);
1.126 paf 307:
1.118 paf 308: bits=split_options(options);
309: }
1.21 paf 310:
1.118 paf 311: bool right=(bits & SPLIT_RIGHT) != 0;
312: bool horizontal=(bits & SPLIT_HORIZONTAL) !=0;
1.156 misha 313:
314: const String* column_name=0;
1.176 misha 315: if(params_count>2){
1.156 misha 316: column_name=¶ms.as_string(2, COLUMN_NAME_MUST_BE_STRING);
1.178 misha 317: if (horizontal && !column_name->is_empty())
1.156 misha 318: throw Exception(PARSER_RUNTIME,
319: column_name,
320: "column name can't be specified with horisontal split");
321: }
1.178 misha 322: if(!column_name || column_name->is_empty())
1.156 misha 323: column_name=new String("piece");
324:
325: Table& table=horizontal?split_horizontal(pieces, right):split_vertical(pieces, right, column_name);
1.17 paf 326:
1.126 paf 327: r.write_no_lang(*new VTable(&table));
1.118 paf 328: }
1.126 paf 329: static void _split(Request& r, MethodParams& params) {
330: split_with_options(r, params, 0 /* maybe-determine from param #2 */);
1.118 paf 331: }
1.126 paf 332: static void _lsplit(Request& r, MethodParams& params) {
333: split_with_options(r, params, SPLIT_LEFT);
1.118 paf 334: }
1.126 paf 335: static void _rsplit(Request& r, MethodParams& params) {
336: split_with_options(r, params, SPLIT_RIGHT);
1.17 paf 337: }
338:
1.126 paf 339: static void search_action(Table& table, Table::element_type row, int, int, int, int, void *) {
1.28 paf 340: if(row)
341: table+=row;
1.27 paf 342: }
343:
1.74 parser 344: #ifndef DOXYGEN
1.27 paf 345: struct Replace_action_info {
1.181 misha 346: Request* request;
347: const String* src;
348: String* dest;
1.126 paf 349: VTable* vtable;
350: Value* replacement_code;
1.27 paf 351: };
1.74 parser 352: #endif
1.105 paf 353: /// @todo they can do $global[$result] there, getting pointer to later-invalid local var, kill this
1.126 paf 354: static void replace_action(Table& table, ArrayString* row,
1.181 misha 355: int prestart, int prefinish,
356: int poststart, int postfinish,
357: void *info) {
1.27 paf 358: Replace_action_info& ai=*static_cast<Replace_action_info *>(info);
1.31 paf 359: if(row) { // begin&middle
1.104 paf 360: // piece from last match['prestart'] to beginning of this match['prefinish']
361: if(prestart!=prefinish)
362: *ai.dest << ai.src->mid(prestart, prefinish);//ai.dest->APPEND_CONST("-");
1.51 parser 363: // store found parts in one-record VTable
1.126 paf 364: if(table.count()) // middle
1.32 paf 365: table.put(0, row);
366: else // begin
1.30 paf 367: table+=row;
1.181 misha 368:
1.30 paf 369: { // execute 'replacement_code' in 'table' context
1.181 misha 370: if(ai.replacement_code){
371: ai.vtable->set_table(table);
372: *ai.dest << ai.request->process_to_string(*ai.replacement_code);
373: }
1.29 paf 374: }
375: } else // end
1.104 paf 376: *ai.dest << ai.src->mid(poststart, postfinish);
1.27 paf 377: }
378:
1.126 paf 379: static void _match(Request& r, MethodParams& params) {
1.174 misha 380: size_t params_count=params.count();
381:
1.126 paf 382: Value& regexp=params.as_no_junction(0, "regexp must not be code");
1.187 misha 383: Value* options=(params_count>1)?¶ms.as_no_junction(1, OPTIONS_MUST_NOT_BE_CODE):0;
1.174 misha 384:
385: VRegex* vregex;
386: VRegexCleaner vrcleaner;
1.126 paf 387:
1.188 misha 388: if(Value* value=regexp.as(VREGEX_TYPE)){
1.174 misha 389: if(options && options->is_defined())
390: throw Exception(PARSER_RUNTIME,
391: 0,
392: "you can not specify regex-object and options together"
393: );
394: vregex=static_cast<VRegex*>(value);
395: } else {
396: vregex=new VRegex(r.charsets.source(),
397: ®exp.as_string(),
398: (options)?(&options->as_string()):0);
1.175 misha 399: vregex->study();
1.174 misha 400: vrcleaner.vregex=vregex;
401: }
1.126 paf 402:
403: Temp_lang temp_lang(r, String::L_PASS_APPENDED);
404: const String& src=GET_SELF(r, VString).string();
1.152 misha 405: int matches_count=0;
1.174 misha 406:
407: if(params_count<3) { // search
408: Table* table=src.match(vregex,
1.64 parser 409: search_action, 0,
1.152 misha 410: matches_count);
1.174 misha 411:
1.152 misha 412: if(table){
1.176 misha 413: r.write_no_lang(*new VTable(table));
1.152 misha 414: } else {
1.173 misha 415: r.write_no_lang(*new VInt(matches_count));
1.152 misha 416: }
417:
1.27 paf 418: } else { // replace
1.181 misha 419:
420: Value* replacement_code=0;
421: bool is_junction=false;
422:
423: Value* replacement=¶ms[2];
424: if(replacement->get_junction()){
425: replacement_code=replacement;
426: is_junction=true;
427: } else if(replacement->is_string()){
428: if(replacement->is_defined())
429: replacement_code=replacement;
430: } else if(!replacement->is_void())
431: throw Exception(PARSER_RUNTIME,
432: 0,
433: "replacement option should be junction or string");
1.106 paf 434:
1.192 misha 435: Value* default_code=(params_count==4)?¶ms.as_junction(3, "default value must be code"):0;
436:
1.126 paf 437: String result;
438: VTable* vtable=new VTable;
1.130 paf 439: Replace_action_info info={
440: &r,
441: &src,
442: &result,
443: vtable,
1.181 misha 444: replacement_code
1.130 paf 445: };
1.181 misha 446:
1.191 misha 447: if(is_junction){
1.211 moko 448: Temp_value_element temp(r, *replacement_code->get_junction()->method_frame, match_var_name, vtable);
1.191 misha 449: src.match(vregex, replace_action, &info, matches_count);
450: } else {
451: src.match(vregex, replace_action, &info, matches_count);
452: }
1.181 misha 453:
1.192 misha 454: if(!matches_count && default_code)
455: r.process_write(*default_code);
456: else
457: r.write_assign_lang(result);
1.27 paf 458: }
1.24 paf 459: }
460:
1.128 paf 461: static void change_case(Request& r, MethodParams&,
1.49 parser 462: String::Change_case_kind kind) {
1.126 paf 463: const String& src=GET_SELF(r, VString).string();
1.49 parser 464:
1.126 paf 465: r.write_assign_lang(src.change_case(r.charsets.source(), kind));
1.49 parser 466: }
1.126 paf 467: static void _upper(Request& r, MethodParams& params) {
468: change_case(r, params, String::CC_UPPER);
1.49 parser 469: }
1.126 paf 470: static void _lower(Request& r, MethodParams& params) {
471: change_case(r, params, String::CC_LOWER);
1.49 parser 472: }
473:
1.65 parser 474: #ifndef DOXYGEN
1.126 paf 475: class String_sql_event_handlers: public SQL_Driver_query_event_handlers {
476: const String& statement_string; const char* statement_cstr;
477: bool got_column;
1.65 parser 478: public:
1.126 paf 479: bool got_cell;
1.208 moko 480: const String* result;
1.126 paf 481: public:
482: String_sql_event_handlers(
483: const String& astatement_string, const char* astatement_cstr):
484: statement_string(astatement_string), statement_cstr(astatement_cstr),
485: got_column(false),
486: got_cell(false),
1.208 moko 487: result(&String::Empty) {}
1.65 parser 488:
1.128 paf 489: bool add_column(SQL_Error& error, const char* /*str*/, size_t /*length*/) {
1.124 paf 490: if(got_column) {
1.153 misha 491: error=SQL_Error(PARSER_RUNTIME,
1.126 paf 492: //statement_string,
1.65 parser 493: "result must contain exactly one column");
1.124 paf 494: return true;
495: }
1.65 parser 496: got_column=true;
1.124 paf 497: return false;
1.65 parser 498: }
1.124 paf 499: bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; }
500: bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; }
1.210 moko 501: bool add_row_cell(SQL_Error& error, const char* str, size_t) {
1.124 paf 502: if(got_cell) {
1.153 misha 503: error=SQL_Error(PARSER_RUNTIME,
1.126 paf 504: //statement_string,
1.65 parser 505: "result must not contain more then one row");
1.124 paf 506: return true;
507: }
1.65 parser 508:
1.124 paf 509: try {
510: got_cell=true;
1.208 moko 511: result=new String(str, String::L_TAINTED /* no length as 0x00 can be inside */ );
1.124 paf 512: return false;
513: } catch(...) {
514: error=SQL_Error("exception occured in String_sql_event_handlers::add_row_cell");
515: return true;
516: }
1.65 parser 517: }
518: };
519: #endif
1.141 paf 520: extern String sql_bind_name;
1.126 paf 521: extern String sql_limit_name;
522: extern String sql_offset_name;
523: extern String sql_default_name;
524: extern String sql_distinct_name;
1.141 paf 525: extern int marshal_binds(HashStringValue& hash, SQL_Driver::Placeholder*& placeholders);
526: extern void unmarshal_bind_updates(HashStringValue& hash, int placeholder_count, SQL_Driver::Placeholder* placeholders);
527:
1.204 moko 528: const String* sql_result_string(Request& r, MethodParams& params, Value*& default_code) {
1.126 paf 529: Value& statement=params.as_junction(0, "statement must be code");
1.53 parser 530:
1.141 paf 531: HashStringValue* bind=0;
1.160 misha 532: ulong limit=SQL_NO_LIMIT;
1.70 parser 533: ulong offset=0;
1.81 parser 534: default_code=0;
1.199 misha 535: if(params.count()>1)
1.205 misha 536: if(HashStringValue* options=params.as_hash(1, "sql options")) {
1.199 misha 537: int valid_options=0;
538: if(Value* vbind=options->get(sql_bind_name)) {
539: valid_options++;
540: bind=vbind->get_hash();
541: }
542: if(Value* vlimit=options->get(sql_limit_name)) {
543: valid_options++;
544: limit=(ulong)r.process_to_value(*vlimit).as_double();
545: }
546: if(Value* voffset=options->get(sql_offset_name)) {
547: valid_options++;
548: offset=(ulong)r.process_to_value(*voffset).as_double();
549: }
550: if((default_code=options->get(sql_default_name))) {
551: valid_options++;
552: }
553: if(valid_options!=options->count())
554: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.200 misha 555: }
1.70 parser 556:
1.141 paf 557: SQL_Driver::Placeholder* placeholders=0;
558: uint placeholders_count=0;
559: if(bind)
560: placeholders_count=marshal_binds(*bind, placeholders);
561:
1.126 paf 562: Temp_lang temp_lang(r, String::L_SQL);
1.99 paf 563: const String& statement_string=r.process_to_string(statement);
1.185 misha 564: const char* statement_cstr=statement_string.untaint_cstr(r.flang, r.connection());
1.183 misha 565:
1.126 paf 566: String_sql_event_handlers handlers(statement_string, statement_cstr);
1.160 misha 567:
1.126 paf 568: r.connection()->query(
1.140 paf 569: statement_cstr,
1.142 paf 570: placeholders_count, placeholders,
1.140 paf 571: offset, limit,
1.117 paf 572: handlers,
573: statement_string);
1.53 parser 574:
1.141 paf 575: if(bind)
576: unmarshal_bind_updates(*bind, placeholders_count, placeholders);
577:
1.65 parser 578: if(!handlers.got_cell)
579: return 0; // no lines, caller should return second param[default value]
1.62 parser 580:
1.208 moko 581: return handlers.result;
1.53 parser 582: }
583:
1.126 paf 584: static void _sql(Request& r, MethodParams& params) {
1.53 parser 585:
1.126 paf 586: Value* default_code;
1.204 moko 587: const String* string=sql_result_string(r, params, default_code);
1.62 parser 588: if(!string) {
1.81 parser 589: if(default_code) {
1.99 paf 590: string=&r.process_to_string(*default_code);
1.68 parser 591: } else
1.153 misha 592: throw Exception(PARSER_RUNTIME,
1.126 paf 593: 0,
1.81 parser 594: "produced no result, but no default option specified");
1.62 parser 595: }
1.100 paf 596:
1.102 paf 597: r.write_assign_lang(*string);
1.53 parser 598: }
599:
1.126 paf 600: static void _replace(Request& r, MethodParams& params) {
601: const String& src=GET_SELF(r, VString).string();
1.71 parser 602:
1.201 misha 603: if(params.count()==1) {
604: // ^string.replace[table]
1.205 misha 605: Table* table=params.as_table(0, "param");
1.201 misha 606: Dictionary dict(*table);
607: r.write_assign_lang(src.replace(dict));
608: } else {
609: // ^string.replace[from-string;to-string]
610: Dictionary dict(
611: params.as_string(0, "from must be string"),
612: params.as_string(1, "to must be string")
613: );
614: r.write_assign_lang(src.replace(dict));
615: }
1.71 parser 616:
617: }
1.79 parser 618:
1.126 paf 619: static void _save(Request& r, MethodParams& params) {
1.189 misha 620: bool do_append=false;
621: Charset* asked_charset=0;
622:
623: size_t file_name_index=0;
1.214 moko 624: if(params.count()>1) {
1.189 misha 625: if(HashStringValue* options=params.as_no_junction(1, "second parameter should be string or hash").get_hash()){
1.205 misha 626: // ^file.save[filespec;$.charset[] $.append(true)]
1.190 misha 627: int valid_options=0;
1.189 misha 628: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
629: asked_charset=&::charsets.get(vcharset_name->as_string().change_case(r.charsets.source(), String::CC_UPPER));
630: valid_options++;
631: }
632: if(Value* vappend=options->get(MODE_APPEND)){
633: do_append=vappend->as_bool();
634: valid_options++;
635: }
636: if(valid_options != options->count())
1.194 misha 637: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.189 misha 638: } else {
1.205 misha 639: // ^file.save[append;filespec]
1.189 misha 640: const String& mode=params.as_string(0, "mode must be string");
641: if(mode==MODE_APPEND){
642: do_append=true;
643: file_name_index++;
644: } else
645: throw Exception(PARSER_RUNTIME,
646: &mode,
647: "unknown mode, must be 'append'");
648: }
1.214 moko 649: }
1.79 parser 650:
1.189 misha 651: const String& file_name=params.as_string(file_name_index, FILE_NAME_MUST_BE_STRING);
1.126 paf 652: const String& src=GET_SELF(r, VString).string();
1.79 parser 653:
1.209 moko 654: String::Body sbody=src.cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets);
1.87 paf 655:
1.79 parser 656: // write
1.189 misha 657: file_write(r.charsets, r.absolute(file_name), sbody.cstr(), sbody.length(), true, do_append, asked_charset);
1.79 parser 658: }
659:
1.126 paf 660: static void _normalize(Request& r, MethodParams&) {
661: const String& src=GET_SELF(r, VString).string();
662:
663: r.write_assign_lang(src);
1.109 paf 664: }
665:
1.133 paf 666: static void _trim(Request& r, MethodParams& params) {
667: const String& src=GET_SELF(r, VString).string();
668:
669: String::Trim_kind kind=String::TRIM_BOTH;
1.176 misha 670: size_t params_count=params.count();
1.133 paf 671: const char* chars=0;
1.176 misha 672: if(params_count>0) {
673: const String& skind=params.as_string(0, "'where' must be string");
1.214 moko 674: if(!skind.is_empty()) {
1.162 misha 675: if(skind==TRIM_BOTH_OPTION)
676: kind=String::TRIM_BOTH;
677: else if(skind==TRIM_START_OPTION || skind=="start")
1.137 paf 678: kind=String::TRIM_START;
1.162 misha 679: else if(skind==TRIM_END_OPTION || skind=="end")
1.137 paf 680: kind=String::TRIM_END;
1.218 moko 681: else if(params_count==1)
682: chars=skind.cstr();
1.137 paf 683: else
1.153 misha 684: throw Exception(PARSER_RUNTIME,
1.137 paf 685: &skind,
1.213 moko 686: "'kind' must be one of " TRIM_START_OPTION ", " TRIM_BOTH_OPTION ", " TRIM_END_OPTION);
1.214 moko 687: }
1.133 paf 688:
1.176 misha 689: if(params_count>1) {
1.136 paf 690: const String& schars=params.as_string(1, "'chars' must be string");
1.178 misha 691: if(!schars.is_empty())
1.137 paf 692: chars=schars.cstr();
1.136 paf 693: }
1.133 paf 694: }
695:
1.182 misha 696: r.write_assign_lang(src.trim(kind, chars, &r.charsets.source()));
1.133 paf 697: }
698:
1.146 paf 699: static void _base64(Request& r, MethodParams& params) {
1.219 moko 700: if(&r.get_self() == string_class) {
1.202 misha 701: // decode: ^string:base64[encoded[;$.strict(true|false)]]
1.219 moko 702: const char* cstr=params.count() ? params.as_string(0, PARAMETER_MUST_BE_STRING).cstr() : "";
1.169 misha 703: char* decoded=0;
704: size_t length=0;
1.202 misha 705:
706: bool strict=false;
707: if(params.count() > 1)
708: if(HashStringValue* options=params.as_hash(1)) {
709: int valid_options=0;
710: if(Value* vstrict=options->get(BASE64_STRICT_OPTION_NAME)) {
711: strict=r.process_to_value(*vstrict).as_bool();
712: valid_options++;
713: }
714: if(valid_options!=options->count())
715: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
716: }
717:
718: pa_base64_decode(cstr, strlen(cstr), decoded, length, strict);
1.169 misha 719: if(decoded && length){
720: if(memchr((const char*)decoded, 0, length))
721: throw Exception(PARSER_RUNTIME,
722: 0,
723: "Invalid \\x00 character found while decode to string. Decode it to file instead.");
724:
725: fix_line_breaks(decoded, length);
1.179 misha 726: if(length)
1.180 misha 727: r.write_assign_lang(*new String(decoded, String::L_TAINTED));
1.169 misha 728: }
1.147 paf 729: } else {
1.169 misha 730: // encode: ^str.base64[]
1.148 paf 731: VString& self=GET_SELF(r, VString);
732: const char* cstr=self.string().cstr();
1.147 paf 733: const char* encoded=pa_base64_encode(cstr, strlen(cstr));
1.180 misha 734: r.write_assign_lang(*new String(encoded, String::L_TAINTED/*once ?param=base64(something) was needed*/));
1.146 paf 735: }
736: }
737:
1.215 moko 738: static void _idna(Request& r, MethodParams& params) {
1.219 moko 739: if(&r.get_self() == string_class) {
1.215 moko 740: // decode: ^string:idna[encoded]
1.219 moko 741: const char* cstr=params.count() ? params.as_string(0, PARAMETER_MUST_BE_STRING).cstr() : "";
1.215 moko 742: r.write_assign_lang(*new String(pa_idna_decode(cstr, r.charsets.source()), String::L_TAINTED));
743: } else {
744: // encode: ^str.idna[]
745: VString& self=GET_SELF(r, VString);
746: const char* cstr=self.string().cstr();
747: r.write_assign_lang(*new String(pa_idna_encode(cstr, r.charsets.source()), String::L_TAINTED));
748: }
749: }
750:
1.220 moko 751: static void _js_escape(Request& r, MethodParams&){
1.167 misha 752: const String& src=GET_SELF(r, VString).string();
753: r.write_assign_lang(src.escape(r.charsets.source()));
754: }
755:
1.220 moko 756: static void _js_unescape(Request& r, MethodParams& params){
1.167 misha 757: const String& src=params.as_string(0, PARAMETER_MUST_BE_STRING);
1.193 misha 758: if(const char* result=unescape_chars(src.cstr(), src.length(), &r.charsets.source(), true))
1.212 moko 759: r.write_assign_lang(*new String(result, String::L_TAINTED));
1.167 misha 760: }
761:
1.220 moko 762: static void _unescape(Request& r, MethodParams& params){
763: const String& mode=params.as_string(0, MODE_MUST_NOT_BE_CODE);
764: const String& src=params.as_string(1, PARAMETER_MUST_BE_STRING);
765:
766: Charset* from_charset=&r.charsets.client();
767:
768: if(params.count() > 2)
769: if(HashStringValue* options=params.as_hash(2)) {
770: int valid_options=0;
771: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
772: from_charset=&::charsets.get(vcharset_name->as_string().change_case(r.charsets.source(), String::CC_UPPER));
773: valid_options++;
774: }
775: if(valid_options!=options->count())
776: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
777: }
778:
779: bool mode_js;
780: if(mode==UNESCAPE_MODE_JS){
781: mode_js=true;
782: } else if(mode==UNESCAPE_MODE_URI){
783: mode_js=false;
784: } else {
785: throw Exception(PARSER_RUNTIME, &mode, "is invalid mode, must be either '"UNESCAPE_MODE_JS"' or '"UNESCAPE_MODE_URI"'");
786: }
787:
788: const char* unescaped=unescape_chars(src.cstr(), src.length(), from_charset, mode_js);
789: if(*unescaped){
1.221 moko 790: const String* result=new String(Charset::transcode(unescaped, *from_charset, r.charsets.source()), String::L_TAINTED);
1.220 moko 791: r.write_assign_lang(*result);
792: }
793: }
794:
1.41 paf 795: // constructor
796:
1.126 paf 797: MString::MString(): Methoded("string") {
1.1 paf 798: // ^string.length[]
1.41 paf 799: add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0);
1.6 paf 800:
1.1 paf 801: // ^string.int[]
1.72 parser 802: // ^string.int(default)
803: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1);
1.1 paf 804: // ^string.double[]
1.72 parser 805: // ^string.double(default)
806: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1);
1.151 misha 807: // ^void.bool[]
808: // ^void.bool(default)
809: add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1);
1.9 paf 810:
1.165 misha 811: // ^string.format[format]
1.41 paf 812: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.14 paf 813:
1.15 paf 814: // ^string.left(n)
1.41 paf 815: add_native_method("left", Method::CT_DYNAMIC, _left, 1, 1);
1.15 paf 816: // ^string.right(n)
1.41 paf 817: add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1);
1.165 misha 818: // ^string.mid(p)
1.15 paf 819: // ^string.mid(p;n)
1.82 parser 820: add_native_method("mid", Method::CT_DYNAMIC, _mid, 1, 2);
1.16 paf 821:
822: // ^string.pos[substr]
1.165 misha 823: // ^string.pos[substr](n)
824: add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 2);
1.17 paf 825:
1.118 paf 826: // ^string.split[delim]
827: // ^string.split[delim][options]
1.156 misha 828: // ^string.split[delim][options][column name]
829: add_native_method("split", Method::CT_DYNAMIC, _split, 1, 3);
1.118 paf 830: // old names for backward compatibility
831: // ^string.lsplit[delim]
832: add_native_method("lsplit", Method::CT_DYNAMIC, _lsplit, 1, 1);
833: // ^string.rsplit[delim]
834: add_native_method("rsplit", Method::CT_DYNAMIC, _rsplit, 1, 1);
835:
1.32 paf 836: // ^string.match[regexp][options]
837: // ^string.match[regexp][options]{replacement-code}
1.192 misha 838: // ^string.match[regexp][options]{replacement-code}{code-if-nothing-is-found}
839: add_native_method("match", Method::CT_DYNAMIC, _match, 1, 4);
1.49 parser 840:
1.165 misha 841: // ^string.upper[]
1.49 parser 842: add_native_method("upper", Method::CT_DYNAMIC, _upper, 0, 0);
1.165 misha 843: // ^string.lower[]
1.49 parser 844: add_native_method("lower", Method::CT_DYNAMIC, _lower, 0, 0);
1.53 parser 845:
1.189 misha 846: // ^string:sql{query}
847: // ^string:sql{query}[options hash]
1.67 parser 848: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.71 parser 849:
850: // ^string.replace[table]
1.201 misha 851: add_native_method("replace", Method::CT_DYNAMIC, _replace, 1, 2);
1.79 parser 852:
1.189 misha 853: // ^string.save[append][file]
854: // ^string.save[file]
855: // ^string.save[file][$.append(true) $.charset[...]]
1.87 paf 856: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2);
1.109 paf 857:
1.112 paf 858: // ^string.normalize[]
859: add_native_method("normalize", Method::CT_DYNAMIC, _normalize, 0, 0);
1.133 paf 860:
861: // ^string.trim[[start|both|end][;chars]]
862: add_native_method("trim", Method::CT_DYNAMIC, _trim, 0, 2);
1.139 paf 863:
1.146 paf 864: // ^string.base64[] << encode
1.215 moko 865: // ^string:base64[encoded string] << decode
1.202 misha 866: add_native_method("base64", Method::CT_ANY, _base64, 0, 2);
1.167 misha 867:
1.215 moko 868: // ^string.idna[] << encode
869: // ^string:idna[encoded string] << decode
870: add_native_method("idna", Method::CT_ANY, _idna, 0, 1);
871:
1.168 misha 872: // ^string.js-escape[]
1.220 moko 873: add_native_method("js-escape", Method::CT_DYNAMIC, _js_escape, 0, 0);
1.189 misha 874:
1.168 misha 875: // ^string:js-unescape[escaped%uXXXXstring]
1.220 moko 876: add_native_method("js-unescape", Method::CT_STATIC, _js_unescape, 1, 1);
877:
878: // ^string:unescape[js|uri;escaped;$.charset[...]]
879: add_native_method("unescape", Method::CT_STATIC, _unescape, 2, 3);
880: }
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