Annotation of parser3/src/classes/string.C, revision 1.253
1.24 paf 1: /** @file
2: Parser: @b string parser class.
3:
1.251 moko 4: Copyright (c) 2001-2023 Art. Lebedev Studio (http://www.artlebedev.com)
5: Authors: Konstantin Morshnev <moko@design.ru>, Alexandr Petrosian <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"
1.241 moko 10: #include "pa_base64.h"
1.126 paf 11:
1.1 paf 12: #include "pa_request.h"
13: #include "pa_vdouble.h"
14: #include "pa_vint.h"
1.17 paf 15: #include "pa_vtable.h"
1.25 paf 16: #include "pa_vbool.h"
1.27 paf 17: #include "pa_string.h"
1.53 parser 18: #include "pa_sql_connection.h"
1.71 parser 19: #include "pa_dictionary.h"
1.119 paf 20: #include "pa_vmethod_frame.h"
1.174 misha 21: #include "pa_vregex.h"
1.189 misha 22: #include "pa_charsets.h"
1.1 paf 23:
1.253 ! moko 24: volatile const char * IDENT_STRING_C="$Id: string.C,v 1.252 2024/09/07 15:01:38 moko Exp $";
1.203 moko 25:
1.41 paf 26: // class
27:
1.126 paf 28: class MString: public Methoded {
1.41 paf 29: public:
1.126 paf 30: MString();
1.41 paf 31: };
1.1 paf 32:
1.126 paf 33: // global variable
34:
1.224 moko 35: DECLARE_CLASS_VAR(string, new MString);
1.126 paf 36:
1.196 moko 37: // void class, inherited from string and thus should be inited afterwards
38:
39: class MVoid: public Methoded {
40: public:
41: MVoid();
42: };
43:
44: // void global variable should be after string global variable
45:
1.224 moko 46: DECLARE_CLASS_VAR(void, new MVoid);
1.196 moko 47:
1.126 paf 48: // defines for statics
49:
50: #define MATCH_VAR_NAME "match"
1.162 misha 51: #define TRIM_START_OPTION "left"
52: #define TRIM_END_OPTION "right"
1.133 paf 53: #define TRIM_BOTH_OPTION "both"
1.126 paf 54:
1.189 misha 55: #define MODE_APPEND "append"
56:
1.220 moko 57: #define UNESCAPE_MODE_JS "js"
58: #define UNESCAPE_MODE_URI "uri"
59:
1.126 paf 60: // statics
61:
62: static const String match_var_name(MATCH_VAR_NAME);
63:
1.1 paf 64: // methods
65:
1.126 paf 66: static void _length(Request& r, MethodParams&) {
1.163 misha 67: double result=GET_SELF(r, VString).string().length(r.charsets.source());
1.233 moko 68: r.write(*new VDouble(result));
1.1 paf 69: }
70:
1.126 paf 71: static void _int(Request& r, MethodParams& params) {
72: const String& self_string=GET_SELF(r, VString).string();
1.72 parser 73: int converted;
1.206 moko 74:
75: if(self_string.is_empty()) {
1.144 paf 76: if(params.count()>0)
77: converted=params.as_int(0, "default must be int", r); // (default)
1.84 parser 78: else
1.206 moko 79: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
80: } else {
81: try {
82: converted=self_string.as_int();
83: } catch(...) { // convert problem
84: if(params.count()>0)
85: converted=params.as_int(0, "default must be int", r); // (default)
86: else
87: rethrow; // we have a problem when no default
88: }
1.72 parser 89: }
1.206 moko 90:
1.233 moko 91: r.write(*new VInt(converted));
1.1 paf 92: }
93:
1.126 paf 94: static void _double(Request& r, MethodParams& params) {
95: const String& self_string=GET_SELF(r, VString).string();
1.206 moko 96:
97: if(self_string.is_empty()) {
1.144 paf 98: if(params.count()>0)
1.233 moko 99: r.write(*new VDouble(params.as_double(0, "default must be double", r))); // (default)
1.84 parser 100: else
1.206 moko 101: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
102: } else {
103: try {
1.233 moko 104: r.write(*new VDouble(self_string.as_double()));
1.206 moko 105: } catch(...) { // convert problem
106: if(params.count()>0)
1.233 moko 107: r.write(*new VDouble(params.as_double(0, "default must be double", r))); // (default)
1.206 moko 108: else
109: rethrow; // we have a problem when no default
110: }
1.72 parser 111: }
1.1 paf 112: }
113:
1.151 misha 114: static void _bool(Request& r, MethodParams& params) {
115: const String& self_string=GET_SELF(r, VString).string();
116: bool converted;
1.206 moko 117: const char *str=self_string.cstr();
118:
119: if(self_string.is_empty()) {
120: if(params.count()>0)
121: converted=params.as_bool(0, "default must be bool", r); // (default)
122: else
123: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
1.207 moko 124: } else if( (str[0]=='T' || str[0]=='t') && (str[1]=='R' || str[1]=='r') && (str[2]=='U' || str[2]=='u') &&
1.206 moko 125: (str[3]=='E' || str[3]=='e') && str[4]==0 ) { // "true"
126: converted=true;
1.207 moko 127: } else if( (str[0]=='F' || str[0]=='f') && (str[1]=='A' || str[1]=='a') && (str[2]=='L' || str[2]=='l') &&
1.206 moko 128: (str[3]=='S' || str[3]=='s') && (str[4]=='E' || str[4]=='e') && str[5]==0 ) { // "false"
129: converted=false;
130: } else {
1.158 misha 131: try {
132: converted=self_string.as_bool();
1.206 moko 133: } catch(...) { // convert problem
134: if(params.count()>0)
135: converted=params.as_bool(0, "default must be bool", r); // (default)
136: else
137: rethrow; // we have a problem when no default
1.158 misha 138: }
1.151 misha 139: }
140:
1.233 moko 141: r.write(VBool::get(converted));
1.151 misha 142: }
143:
1.126 paf 144: /*not static*/void _string_format(Request& r, MethodParams& params) {
1.9 paf 145:
1.126 paf 146: Value& fmt_maybe_code=params[0];
1.95 paf 147: // for some time due to stupid {} in original design
1.99 paf 148: const String& fmt=r.process_to_string(fmt_maybe_code);
1.9 paf 149:
1.159 misha 150: const char* buf=format(r.get_self().as_double(), fmt.trim().cstrm());
1.63 parser 151:
1.233 moko 152: r.write(String(buf));
1.9 paf 153: }
1.11 paf 154:
1.126 paf 155: static void _left(Request& r, MethodParams& params) {
1.244 moko 156: int sn=params.as_int(0, "n must be int", r);
1.126 paf 157: const String& string=GET_SELF(r, VString).string();
1.244 moko 158: r.write(sn<0 ? string : string.mid(r.charsets.source(), 0, sn));
1.15 paf 159: }
160:
1.126 paf 161: static void _right(Request& r, MethodParams& params) {
1.244 moko 162: int sn=params.as_int(0, "n must be int", r);
1.216 moko 163: if(sn>0){
1.244 moko 164: size_t n=sn;
1.216 moko 165: const String& string=GET_SELF(r, VString).string();
166: size_t length=string.length(r.charsets.source());
1.233 moko 167: r.write(n<length ? string.mid(r.charsets.source(), length-n, length, length) : string);
1.216 moko 168: }
1.15 paf 169: }
170:
1.126 paf 171: static void _mid(Request& r, MethodParams& params) {
172: const String& string=GET_SELF(r, VString).string();
1.83 parser 173:
1.245 moko 174: int begin=params.as_int(0, "p must be int", r);
175: if(begin<0)
176: throw Exception(PARSER_RUNTIME, 0, "p(%d) must be >=0", begin);
1.138 paf 177:
178: size_t end;
1.164 misha 179: size_t length=0;
1.245 moko 180:
1.138 paf 181: if(params.count()>1) {
1.245 moko 182: int n=params.as_int(1, "n must be int", r);
183: if(n<0)
184: throw Exception(PARSER_RUNTIME, 0, "n(%d) must be >=0", n);
185: end=begin+n;
1.164 misha 186: } else {
187: length=string.length(r.charsets.source());
188: end=length;
189: }
1.163 misha 190:
1.233 moko 191: r.write(string.mid(r.charsets.source(), begin, end, length));
1.15 paf 192: }
193:
1.126 paf 194: static void _pos(Request& r, MethodParams& params) {
195: Value& substr=params.as_no_junction(0, "substr must not be code");
1.16 paf 196:
1.126 paf 197: const String& string=GET_SELF(r, VString).string();
1.245 moko 198: int offset=0;
1.165 misha 199: if(params.count()>1){
200: offset=params.as_int(1, "n must be int", r);
201: if(offset<0)
1.227 moko 202: throw Exception(PARSER_RUNTIME, 0, "n(%d) must be >=0", offset);
1.165 misha 203: }
204:
1.245 moko 205: r.write(*new VInt((int)string.pos(r.charsets.source(), substr.as_string(), offset)));
1.16 paf 206: }
207:
1.250 moko 208: struct Split_action_info {
209: const String& src;
210: ArrayString &result;
211: };
212:
213: static void split_action(Table& , ArrayString* row, int prestart, int prefinish, int poststart, int postfinish, void *info) {
214: Split_action_info& ai=*static_cast<Split_action_info *>(info);
215: if(row) { // begin&middle
216: // piece from last match['prestart'] to beginning of this match['prefinish']
217: ai.result += &ai.src.mid(prestart, prefinish);
218: } else // end
219: if(poststart != postfinish)
220: ai.result += &ai.src.mid(poststart, postfinish);
221: }
222:
1.249 moko 223: static void split_list(Value& delim_value, const String& string, ArrayString& result) {
1.250 moko 224: if(Value* value=delim_value.as(VREGEX_TYPE)){
225: VRegex *vregex=static_cast<VRegex*>(value);
226: vregex->study();
227:
228: int matches_count=0;
229: Split_action_info ai = { string, result };
230:
231: string.match(vregex, split_action, &ai, matches_count);
232: } else
233: string.split(result, 0, delim_value.as_string());
1.19 paf 234: }
235:
1.118 paf 236: #define SPLIT_LEFT 0x0001
237: #define SPLIT_RIGHT 0x0010
238: #define SPLIT_HORIZONTAL 0x0100
239: #define SPLIT_VERTICAL 0x1000
240:
1.126 paf 241: static int split_options(const String* options) {
1.118 paf 242: struct Split_option {
1.126 paf 243: const char* keyL;
244: const char* keyU;
1.118 paf 245: int setBit;
246: int checkBit;
247: } split_option[]={
248: {"l", "L", SPLIT_LEFT, SPLIT_RIGHT}, // 0xVHRL
249: {"r", "R", SPLIT_RIGHT, SPLIT_LEFT},
250: {"h", "H", SPLIT_HORIZONTAL, SPLIT_VERTICAL},
251: {"v", "V", SPLIT_VERTICAL, SPLIT_HORIZONTAL},
1.130 paf 252: {0, 0, 0, 0}
1.118 paf 253: };
254:
255: int result=0;
1.126 paf 256: if(options) {
1.118 paf 257: for(Split_option *o=split_option; o->keyL; o++)
1.126 paf 258: if(options->pos(o->keyL)!=STRING_NOT_FOUND
259: || (o->keyU && options->pos(o->keyU)!=STRING_NOT_FOUND)) {
1.118 paf 260: if(result & o->checkBit)
1.238 moko 261: throw Exception(PARSER_RUNTIME, options, "conflicting split options");
1.118 paf 262: result |= o->setBit;
263: }
264: }
265:
266: return result;
267: }
268:
1.156 misha 269: static Table& split_vertical(ArrayString& pieces, bool right, const String* column_name) {
1.126 paf 270: Table::columns_type columns(new ArrayString);
1.156 misha 271: *columns+=column_name;
1.19 paf 272:
1.126 paf 273: Table& table=*new Table(columns, pieces.count());
1.118 paf 274: if(right) { // right
1.126 paf 275: for(int i=pieces.count(); --i>=0; ) {
276: Table::element_type row(new ArrayString);
277: *row+=pieces[i];
278: table+=row;
1.118 paf 279: }
280: } else { // left
1.253 ! moko 281: for(ArrayString::Iterator i(pieces); i; ) {
1.126 paf 282: Table::element_type row(new ArrayString);
283: *row+=i.next();
284: table+=row;
1.118 paf 285: }
1.61 parser 286: }
1.118 paf 287:
1.126 paf 288: return table;
1.19 paf 289: }
290:
1.128 paf 291: static Table& split_horizontal(ArrayString& pieces, bool right) {
1.126 paf 292: Table& table=*new Table(Table::columns_type(0) /* nameless */);
293: Table::element_type row(new ArrayString(pieces.count()));
1.118 paf 294: if(right) { // right
1.131 paf 295: for(int i=pieces.count(); --i>=0; )
1.126 paf 296: *row+=pieces[i];
1.118 paf 297: } else { // left
1.253 ! moko 298: for(ArrayString::Iterator i(pieces); i; )
1.126 paf 299: *row+=i.next();
1.118 paf 300: }
1.126 paf 301: table+=row;
1.118 paf 302:
1.126 paf 303: return table;
1.118 paf 304: }
305:
1.238 moko 306: static void split_with_options(Request& r, MethodParams& params, int bits) {
1.126 paf 307: const String& string=GET_SELF(r, VString).string();
1.176 misha 308: size_t params_count=params.count();
1.19 paf 309:
1.126 paf 310: ArrayString pieces;
1.249 moko 311: split_list(params.as_no_junction(0, "delimiter must not be code"), string, pieces);
1.19 paf 312:
1.118 paf 313: if(!bits) {
1.126 paf 314: const String* options=0;
1.176 misha 315: if(params_count>1)
1.187 misha 316: options=¶ms.as_string(1, OPTIONS_MUST_NOT_BE_CODE);
1.118 paf 317: bits=split_options(options);
318: }
1.21 paf 319:
1.118 paf 320: bool right=(bits & SPLIT_RIGHT) != 0;
321: bool horizontal=(bits & SPLIT_HORIZONTAL) !=0;
1.156 misha 322:
323: const String* column_name=0;
1.176 misha 324: if(params_count>2){
1.156 misha 325: column_name=¶ms.as_string(2, COLUMN_NAME_MUST_BE_STRING);
1.178 misha 326: if (horizontal && !column_name->is_empty())
1.238 moko 327: throw Exception(PARSER_RUNTIME, column_name, "column name can't be specified with horisontal split");
1.156 misha 328: }
1.178 misha 329: if(!column_name || column_name->is_empty())
1.156 misha 330: column_name=new String("piece");
331:
332: Table& table=horizontal?split_horizontal(pieces, right):split_vertical(pieces, right, column_name);
1.17 paf 333:
1.233 moko 334: r.write(*new VTable(&table));
1.118 paf 335: }
1.126 paf 336: static void _split(Request& r, MethodParams& params) {
337: split_with_options(r, params, 0 /* maybe-determine from param #2 */);
1.118 paf 338: }
1.126 paf 339: static void _lsplit(Request& r, MethodParams& params) {
340: split_with_options(r, params, SPLIT_LEFT);
1.118 paf 341: }
1.126 paf 342: static void _rsplit(Request& r, MethodParams& params) {
343: split_with_options(r, params, SPLIT_RIGHT);
1.17 paf 344: }
345:
1.126 paf 346: static void search_action(Table& table, Table::element_type row, int, int, int, int, void *) {
1.28 paf 347: if(row)
348: table+=row;
1.27 paf 349: }
350:
1.74 parser 351: #ifndef DOXYGEN
1.27 paf 352: struct Replace_action_info {
1.181 misha 353: Request* request;
354: const String* src;
355: String* dest;
1.126 paf 356: VTable* vtable;
357: Value* replacement_code;
1.27 paf 358: };
1.74 parser 359: #endif
1.105 paf 360: /// @todo they can do $global[$result] there, getting pointer to later-invalid local var, kill this
1.238 moko 361: static void replace_action(Table& table, ArrayString* row, int prestart, int prefinish, int poststart, int postfinish, void *info) {
1.27 paf 362: Replace_action_info& ai=*static_cast<Replace_action_info *>(info);
1.31 paf 363: if(row) { // begin&middle
1.104 paf 364: // piece from last match['prestart'] to beginning of this match['prefinish']
365: if(prestart!=prefinish)
366: *ai.dest << ai.src->mid(prestart, prefinish);//ai.dest->APPEND_CONST("-");
1.51 parser 367: // store found parts in one-record VTable
1.126 paf 368: if(table.count()) // middle
1.32 paf 369: table.put(0, row);
370: else // begin
1.30 paf 371: table+=row;
1.181 misha 372:
1.30 paf 373: { // execute 'replacement_code' in 'table' context
1.181 misha 374: if(ai.replacement_code){
375: ai.vtable->set_table(table);
376: *ai.dest << ai.request->process_to_string(*ai.replacement_code);
377: }
1.29 paf 378: }
379: } else // end
1.104 paf 380: *ai.dest << ai.src->mid(poststart, postfinish);
1.27 paf 381: }
382:
1.126 paf 383: static void _match(Request& r, MethodParams& params) {
1.174 misha 384: size_t params_count=params.count();
385:
1.126 paf 386: Value& regexp=params.as_no_junction(0, "regexp must not be code");
1.187 misha 387: Value* options=(params_count>1)?¶ms.as_no_junction(1, OPTIONS_MUST_NOT_BE_CODE):0;
1.174 misha 388:
389: VRegex* vregex;
390: VRegexCleaner vrcleaner;
1.126 paf 391:
1.188 misha 392: if(Value* value=regexp.as(VREGEX_TYPE)){
1.174 misha 393: if(options && options->is_defined())
1.237 moko 394: throw Exception(PARSER_RUNTIME, 0, "you can not specify regex-object and options together");
1.174 misha 395: vregex=static_cast<VRegex*>(value);
396: } else {
1.237 moko 397: vregex=new VRegex(r.charsets.source(), ®exp.as_string(), (options) ? (&options->as_string()) : 0);
1.175 misha 398: vregex->study();
1.174 misha 399: vrcleaner.vregex=vregex;
400: }
1.126 paf 401:
402: const String& src=GET_SELF(r, VString).string();
1.152 misha 403: int matches_count=0;
1.174 misha 404:
405: if(params_count<3) { // search
1.237 moko 406: Table* table=src.match(vregex, search_action, 0, matches_count);
1.174 misha 407:
1.152 misha 408: if(table){
1.233 moko 409: r.write(*new VTable(table));
1.152 misha 410: } else {
1.233 moko 411: r.write(*new VInt(matches_count));
1.152 misha 412: }
413:
1.27 paf 414: } else { // replace
1.181 misha 415:
416: Value* replacement_code=0;
417: bool is_junction=false;
418:
419: Value* replacement=¶ms[2];
420: if(replacement->get_junction()){
421: replacement_code=replacement;
422: is_junction=true;
423: } else if(replacement->is_string()){
424: if(replacement->is_defined())
425: replacement_code=replacement;
426: } else if(!replacement->is_void())
1.238 moko 427: throw Exception(PARSER_RUNTIME, 0, "replacement option should be junction or string");
1.106 paf 428:
1.238 moko 429: Value* default_code=(params_count==4) ? ¶ms.as_junction(3, "default value must be code") : 0;
1.192 misha 430:
1.126 paf 431: String result;
432: VTable* vtable=new VTable;
1.130 paf 433: Replace_action_info info={
434: &r,
435: &src,
436: &result,
437: vtable,
1.181 misha 438: replacement_code
1.130 paf 439: };
1.181 misha 440:
1.191 misha 441: if(is_junction){
1.211 moko 442: Temp_value_element temp(r, *replacement_code->get_junction()->method_frame, match_var_name, vtable);
1.191 misha 443: src.match(vregex, replace_action, &info, matches_count);
444: } else {
445: src.match(vregex, replace_action, &info, matches_count);
446: }
1.181 misha 447:
1.192 misha 448: if(!matches_count && default_code)
449: r.process_write(*default_code);
450: else
1.233 moko 451: r.write(result);
1.27 paf 452: }
1.24 paf 453: }
454:
1.238 moko 455: static void change_case(Request& r, MethodParams&, String::Change_case_kind kind) {
1.126 paf 456: const String& src=GET_SELF(r, VString).string();
1.49 parser 457:
1.233 moko 458: r.write(src.change_case(r.charsets.source(), kind));
1.49 parser 459: }
1.126 paf 460: static void _upper(Request& r, MethodParams& params) {
461: change_case(r, params, String::CC_UPPER);
1.49 parser 462: }
1.126 paf 463: static void _lower(Request& r, MethodParams& params) {
464: change_case(r, params, String::CC_LOWER);
1.49 parser 465: }
466:
1.65 parser 467: #ifndef DOXYGEN
1.126 paf 468: class String_sql_event_handlers: public SQL_Driver_query_event_handlers {
469: bool got_column;
1.65 parser 470: public:
1.126 paf 471: bool got_cell;
1.208 moko 472: const String* result;
1.126 paf 473: public:
1.240 moko 474: String_sql_event_handlers():
1.126 paf 475: got_column(false),
476: got_cell(false),
1.208 moko 477: result(&String::Empty) {}
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) {
1.240 moko 481: error=SQL_Error("result must contain exactly one column");
1.124 paf 482: return true;
483: }
1.65 parser 484: got_column=true;
1.124 paf 485: return false;
1.65 parser 486: }
1.124 paf 487: bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; }
488: bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; }
1.210 moko 489: bool add_row_cell(SQL_Error& error, const char* str, size_t) {
1.124 paf 490: if(got_cell) {
1.240 moko 491: error=SQL_Error("result must not contain more then one row");
1.124 paf 492: return true;
493: }
494: try {
495: got_cell=true;
1.208 moko 496: result=new String(str, String::L_TAINTED /* no length as 0x00 can be inside */ );
1.124 paf 497: return false;
498: } catch(...) {
1.235 moko 499: error=SQL_Error("exception occurred in String_sql_event_handlers::add_row_cell");
1.124 paf 500: return true;
501: }
1.65 parser 502: }
503: };
504: #endif
1.239 moko 505:
1.141 paf 506: extern int marshal_binds(HashStringValue& hash, SQL_Driver::Placeholder*& placeholders);
507: extern void unmarshal_bind_updates(HashStringValue& hash, int placeholder_count, SQL_Driver::Placeholder* placeholders);
508:
1.204 moko 509: const String* sql_result_string(Request& r, MethodParams& params, Value*& default_code) {
1.126 paf 510: Value& statement=params.as_junction(0, "statement must be code");
1.53 parser 511:
1.141 paf 512: HashStringValue* bind=0;
1.160 misha 513: ulong limit=SQL_NO_LIMIT;
1.70 parser 514: ulong offset=0;
1.81 parser 515: default_code=0;
1.199 misha 516: if(params.count()>1)
1.205 misha 517: if(HashStringValue* options=params.as_hash(1, "sql options")) {
1.199 misha 518: int valid_options=0;
519: if(Value* vbind=options->get(sql_bind_name)) {
520: valid_options++;
521: bind=vbind->get_hash();
522: }
523: if(Value* vlimit=options->get(sql_limit_name)) {
524: valid_options++;
1.230 moko 525: limit=(ulong)r.process(*vlimit).as_double();
1.199 misha 526: }
527: if(Value* voffset=options->get(sql_offset_name)) {
528: valid_options++;
1.230 moko 529: offset=(ulong)r.process(*voffset).as_double();
1.199 misha 530: }
531: if((default_code=options->get(sql_default_name))) {
532: valid_options++;
533: }
534: if(valid_options!=options->count())
535: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.200 misha 536: }
1.70 parser 537:
1.141 paf 538: SQL_Driver::Placeholder* placeholders=0;
539: uint placeholders_count=0;
540: if(bind)
541: placeholders_count=marshal_binds(*bind, placeholders);
542:
1.99 paf 543: const String& statement_string=r.process_to_string(statement);
1.232 moko 544: const char* statement_cstr=statement_string.untaint_cstr(String::L_SQL, r.connection());
1.183 misha 545:
1.240 moko 546: String_sql_event_handlers handlers;
1.160 misha 547:
1.240 moko 548: r.connection()->query(statement_cstr, placeholders_count, placeholders, offset, limit, handlers, statement_string);
1.53 parser 549:
1.141 paf 550: if(bind)
551: unmarshal_bind_updates(*bind, placeholders_count, placeholders);
552:
1.65 parser 553: if(!handlers.got_cell)
554: return 0; // no lines, caller should return second param[default value]
1.62 parser 555:
1.208 moko 556: return handlers.result;
1.53 parser 557: }
558:
1.126 paf 559: static void _sql(Request& r, MethodParams& params) {
1.53 parser 560:
1.126 paf 561: Value* default_code;
1.204 moko 562: const String* string=sql_result_string(r, params, default_code);
1.62 parser 563: if(!string) {
1.81 parser 564: if(default_code) {
1.99 paf 565: string=&r.process_to_string(*default_code);
1.68 parser 566: } else
1.238 moko 567: throw Exception(PARSER_RUNTIME, 0, "produced no result, but no default option specified");
1.62 parser 568: }
1.100 paf 569:
1.233 moko 570: r.write(*string);
1.53 parser 571: }
572:
1.126 paf 573: static void _replace(Request& r, MethodParams& params) {
574: const String& src=GET_SELF(r, VString).string();
1.71 parser 575:
1.201 misha 576: if(params.count()==1) {
577: // ^string.replace[table]
1.248 moko 578: if(Table* table=params.as_table(0, "param")){
579: Dictionary dict(*table);
580: r.write(src.replace(dict));
581: } else
582: r.write(src);
1.201 misha 583: } else {
584: // ^string.replace[from-string;to-string]
1.238 moko 585: Dictionary dict(params.as_string(0, "from must be string"), params.as_string(1, "to must be string"));
1.233 moko 586: r.write(src.replace(dict));
1.201 misha 587: }
1.71 parser 588:
589: }
1.79 parser 590:
1.126 paf 591: static void _save(Request& r, MethodParams& params) {
1.189 misha 592: bool do_append=false;
593: Charset* asked_charset=0;
594:
595: size_t file_name_index=0;
1.214 moko 596: if(params.count()>1) {
1.189 misha 597: if(HashStringValue* options=params.as_no_junction(1, "second parameter should be string or hash").get_hash()){
1.205 misha 598: // ^file.save[filespec;$.charset[] $.append(true)]
1.190 misha 599: int valid_options=0;
1.189 misha 600: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
1.229 moko 601: asked_charset=&pa_charsets.get(vcharset_name->as_string());
1.189 misha 602: valid_options++;
603: }
604: if(Value* vappend=options->get(MODE_APPEND)){
605: do_append=vappend->as_bool();
606: valid_options++;
607: }
608: if(valid_options != options->count())
1.194 misha 609: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.189 misha 610: } else {
1.205 misha 611: // ^file.save[append;filespec]
1.189 misha 612: const String& mode=params.as_string(0, "mode must be string");
613: if(mode==MODE_APPEND){
614: do_append=true;
615: file_name_index++;
616: } else
617: throw Exception(PARSER_RUNTIME,
618: &mode,
619: "unknown mode, must be 'append'");
620: }
1.214 moko 621: }
1.79 parser 622:
1.189 misha 623: const String& file_name=params.as_string(file_name_index, FILE_NAME_MUST_BE_STRING);
1.126 paf 624: const String& src=GET_SELF(r, VString).string();
1.79 parser 625:
1.209 moko 626: String::Body sbody=src.cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets);
1.87 paf 627:
1.79 parser 628: // write
1.246 moko 629: file_write(r.charsets, r.full_disk_path(file_name), sbody.cstr(), sbody.length(), true, do_append, asked_charset);
1.79 parser 630: }
631:
1.126 paf 632: static void _normalize(Request& r, MethodParams&) {
633: const String& src=GET_SELF(r, VString).string();
634:
1.233 moko 635: r.write(src);
1.109 paf 636: }
637:
1.133 paf 638: static void _trim(Request& r, MethodParams& params) {
639: const String& src=GET_SELF(r, VString).string();
640:
641: String::Trim_kind kind=String::TRIM_BOTH;
1.176 misha 642: size_t params_count=params.count();
1.133 paf 643: const char* chars=0;
1.176 misha 644: if(params_count>0) {
645: const String& skind=params.as_string(0, "'where' must be string");
1.214 moko 646: if(!skind.is_empty()) {
1.162 misha 647: if(skind==TRIM_BOTH_OPTION)
648: kind=String::TRIM_BOTH;
649: else if(skind==TRIM_START_OPTION || skind=="start")
1.137 paf 650: kind=String::TRIM_START;
1.162 misha 651: else if(skind==TRIM_END_OPTION || skind=="end")
1.137 paf 652: kind=String::TRIM_END;
1.218 moko 653: else if(params_count==1)
654: chars=skind.cstr();
1.137 paf 655: else
1.238 moko 656: throw Exception(PARSER_RUNTIME, &skind, "'kind' must be one of " TRIM_START_OPTION ", " TRIM_BOTH_OPTION ", " TRIM_END_OPTION);
1.214 moko 657: }
1.133 paf 658:
1.176 misha 659: if(params_count>1) {
1.136 paf 660: const String& schars=params.as_string(1, "'chars' must be string");
1.178 misha 661: if(!schars.is_empty())
1.137 paf 662: chars=schars.cstr();
1.136 paf 663: }
1.133 paf 664: }
665:
1.233 moko 666: r.write(src.trim(kind, chars, &r.charsets.source()));
1.133 paf 667: }
668:
1.241 moko 669: Base64Options base64_encode_options(Request& r, HashStringValue* options) {
670: Base64Options result;
671: if(options) {
672: int valid_options=0;
673: for(HashStringValue::Iterator i(*options); i; i.next()) {
674: String::Body key=i.key();
675: Value* value=i.value();
676: if(key == "pad") {
677: result.pad=r.process(*value).as_bool();
678: valid_options++;
679: } else if(key == "wrap") {
680: result.wrap=r.process(*value).as_bool();
681: valid_options++;
682: } else if(key == "url-safe") {
683: if(r.process(*value).as_bool())
684: result.set_url_safe_abc();
685: valid_options++;
686: }
687: }
688:
689: if(valid_options != options->count())
690: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
691: }
692: return result;
693: }
694:
695: Base64Options base64_decode_options(Request& r, HashStringValue* options) {
696: Base64Options result;
697: if(options) {
698: int valid_options=0;
699: for(HashStringValue::Iterator i(*options); i; i.next() ) {
700: String::Body key=i.key();
701: Value* value=i.value();
702: if(key == "pad") {
703: result.pad=r.process(*value).as_bool();
704: valid_options++;
705: } else if(key == "strict") {
706: result.strict=r.process(*value).as_bool();
707: valid_options++;
708: } else if(key == "url-safe") {
709: if(r.process(*value).as_bool())
710: result.set_url_safe_abc();
711: valid_options++;
712: }
713: }
714:
715: if(valid_options != options->count())
716: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
717: }
718: return result;
719: }
720:
1.146 paf 721: static void _base64(Request& r, MethodParams& params) {
1.219 moko 722: if(&r.get_self() == string_class) {
1.241 moko 723: // decode: ^string:base64[encoded[;options]]
1.219 moko 724: const char* cstr=params.count() ? params.as_string(0, PARAMETER_MUST_BE_STRING).cstr() : "";
1.241 moko 725: Base64Options options = base64_decode_options(r, params.count() > 1 ? params.as_hash(1) : NULL);
726:
1.169 misha 727: char* decoded=0;
1.243 moko 728: size_t length=pa_base64_decode(cstr, strlen(cstr), decoded, options);
1.202 misha 729:
1.169 misha 730: if(decoded && length){
1.242 moko 731: if(memchr(decoded, 0, length))
732: throw Exception(PARSER_RUNTIME, 0, "Invalid \\x00 character found while decoding to string. Decode to file instead.");
1.169 misha 733:
734: fix_line_breaks(decoded, length);
1.242 moko 735:
1.179 misha 736: if(length)
1.233 moko 737: r.write(*new String(decoded, String::L_TAINTED));
1.169 misha 738: }
1.147 paf 739: } else {
1.241 moko 740: // encode: ^str.base64[options]
1.148 paf 741: VString& self=GET_SELF(r, VString);
742: const char* cstr=self.string().cstr();
1.241 moko 743: Base64Options options = base64_encode_options(r, params.count() ? params.as_hash(0) : NULL);
744: const char* encoded=pa_base64_encode(cstr, strlen(cstr), options);
745: r.write(*new String(encoded, String::L_TAINTED /*once ?param=base64(something) was needed*/ ));
1.146 paf 746: }
747: }
748:
1.215 moko 749: static void _idna(Request& r, MethodParams& params) {
1.219 moko 750: if(&r.get_self() == string_class) {
1.215 moko 751: // decode: ^string:idna[encoded]
1.219 moko 752: const char* cstr=params.count() ? params.as_string(0, PARAMETER_MUST_BE_STRING).cstr() : "";
1.233 moko 753: r.write(*new String(pa_idna_decode(cstr, r.charsets.source()), String::L_TAINTED));
1.215 moko 754: } else {
755: // encode: ^str.idna[]
756: VString& self=GET_SELF(r, VString);
757: const char* cstr=self.string().cstr();
1.233 moko 758: r.write(*new String(pa_idna_encode(cstr, r.charsets.source()), String::L_TAINTED));
1.215 moko 759: }
760: }
761:
1.220 moko 762: static void _js_escape(Request& r, MethodParams&){
1.167 misha 763: const String& src=GET_SELF(r, VString).string();
1.233 moko 764: r.write(src.escape(r.charsets.source()));
1.167 misha 765: }
766:
1.220 moko 767: static void _js_unescape(Request& r, MethodParams& params){
1.167 misha 768: const String& src=params.as_string(0, PARAMETER_MUST_BE_STRING);
1.193 misha 769: if(const char* result=unescape_chars(src.cstr(), src.length(), &r.charsets.source(), true))
1.233 moko 770: r.write(*new String(result, String::L_TAINTED));
1.167 misha 771: }
772:
1.220 moko 773: static void _unescape(Request& r, MethodParams& params){
774: const String& mode=params.as_string(0, MODE_MUST_NOT_BE_CODE);
775: const String& src=params.as_string(1, PARAMETER_MUST_BE_STRING);
776:
777: Charset* from_charset=&r.charsets.client();
778:
779: if(params.count() > 2)
780: if(HashStringValue* options=params.as_hash(2)) {
781: int valid_options=0;
782: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
1.229 moko 783: from_charset=&pa_charsets.get(vcharset_name->as_string());
1.220 moko 784: valid_options++;
785: }
786: if(valid_options!=options->count())
787: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
788: }
789:
790: bool mode_js;
791: if(mode==UNESCAPE_MODE_JS){
792: mode_js=true;
793: } else if(mode==UNESCAPE_MODE_URI){
794: mode_js=false;
795: } else {
1.228 moko 796: throw Exception(PARSER_RUNTIME, &mode, "is invalid mode, must be either '" UNESCAPE_MODE_JS "' or '" UNESCAPE_MODE_URI "'");
1.220 moko 797: }
798:
799: const char* unescaped=unescape_chars(src.cstr(), src.length(), from_charset, mode_js);
800: if(*unescaped){
1.221 moko 801: const String* result=new String(Charset::transcode(unescaped, *from_charset, r.charsets.source()), String::L_TAINTED);
1.233 moko 802: r.write(*result);
1.220 moko 803: }
804: }
805:
1.225 moko 806: static void _contains(Request& r, MethodParams& params) {
807: // empty or whitespace string is hash compatible
808: GET_SELF(r, VString).get_element(params.as_string(0, "key must be string"));
809: // ignoring result as it allways null
1.233 moko 810: r.write(VBool::get(false));
1.225 moko 811: }
812:
1.41 paf 813: // constructor
814:
1.126 paf 815: MString::MString(): Methoded("string") {
1.1 paf 816: // ^string.length[]
1.41 paf 817: add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0);
1.6 paf 818:
1.1 paf 819: // ^string.int[]
1.72 parser 820: // ^string.int(default)
821: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1);
1.1 paf 822: // ^string.double[]
1.72 parser 823: // ^string.double(default)
824: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1);
1.151 misha 825: // ^void.bool[]
826: // ^void.bool(default)
827: add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1);
1.9 paf 828:
1.165 misha 829: // ^string.format[format]
1.41 paf 830: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.14 paf 831:
1.15 paf 832: // ^string.left(n)
1.41 paf 833: add_native_method("left", Method::CT_DYNAMIC, _left, 1, 1);
1.15 paf 834: // ^string.right(n)
1.41 paf 835: add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1);
1.165 misha 836: // ^string.mid(p)
1.15 paf 837: // ^string.mid(p;n)
1.82 parser 838: add_native_method("mid", Method::CT_DYNAMIC, _mid, 1, 2);
1.16 paf 839:
840: // ^string.pos[substr]
1.165 misha 841: // ^string.pos[substr](n)
842: add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 2);
1.17 paf 843:
1.118 paf 844: // ^string.split[delim]
845: // ^string.split[delim][options]
1.156 misha 846: // ^string.split[delim][options][column name]
847: add_native_method("split", Method::CT_DYNAMIC, _split, 1, 3);
1.236 moko 848: // old names for backward compatibility
849: // ^string.lsplit[delim]
850: add_native_method("lsplit", Method::CT_DYNAMIC, _lsplit, 1, 1);
851: // ^string.rsplit[delim]
852: add_native_method("rsplit", Method::CT_DYNAMIC, _rsplit, 1, 1);
853:
1.32 paf 854: // ^string.match[regexp][options]
855: // ^string.match[regexp][options]{replacement-code}
1.192 misha 856: // ^string.match[regexp][options]{replacement-code}{code-if-nothing-is-found}
857: add_native_method("match", Method::CT_DYNAMIC, _match, 1, 4);
1.49 parser 858:
1.165 misha 859: // ^string.upper[]
1.49 parser 860: add_native_method("upper", Method::CT_DYNAMIC, _upper, 0, 0);
1.165 misha 861: // ^string.lower[]
1.49 parser 862: add_native_method("lower", Method::CT_DYNAMIC, _lower, 0, 0);
1.53 parser 863:
1.189 misha 864: // ^string:sql{query}
865: // ^string:sql{query}[options hash]
1.67 parser 866: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.71 parser 867:
868: // ^string.replace[table]
1.201 misha 869: add_native_method("replace", Method::CT_DYNAMIC, _replace, 1, 2);
1.79 parser 870:
1.189 misha 871: // ^string.save[append][file]
872: // ^string.save[file]
873: // ^string.save[file][$.append(true) $.charset[...]]
1.87 paf 874: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2);
1.109 paf 875:
1.112 paf 876: // ^string.normalize[]
877: add_native_method("normalize", Method::CT_DYNAMIC, _normalize, 0, 0);
1.133 paf 878:
879: // ^string.trim[[start|both|end][;chars]]
880: add_native_method("trim", Method::CT_DYNAMIC, _trim, 0, 2);
1.139 paf 881:
1.146 paf 882: // ^string.base64[] << encode
1.215 moko 883: // ^string:base64[encoded string] << decode
1.202 misha 884: add_native_method("base64", Method::CT_ANY, _base64, 0, 2);
1.167 misha 885:
1.215 moko 886: // ^string.idna[] << encode
887: // ^string:idna[encoded string] << decode
888: add_native_method("idna", Method::CT_ANY, _idna, 0, 1);
889:
1.168 misha 890: // ^string.js-escape[]
1.220 moko 891: add_native_method("js-escape", Method::CT_DYNAMIC, _js_escape, 0, 0);
1.189 misha 892:
1.168 misha 893: // ^string:js-unescape[escaped%uXXXXstring]
1.220 moko 894: add_native_method("js-unescape", Method::CT_STATIC, _js_unescape, 1, 1);
895:
896: // ^string:unescape[js|uri;escaped;$.charset[...]]
897: add_native_method("unescape", Method::CT_STATIC, _unescape, 2, 3);
1.225 moko 898:
899: // ^string.contains[key] for hash compatibility
900: add_native_method("contains", Method::CT_DYNAMIC, _contains, 1, 1);
1.220 moko 901: }
E-mail:
![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to string.C CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [parser3project] / parser3 / src / classes