Annotation of parser3/src/classes/string.C, revision 1.257
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"
1.257 ! moko 18: #include "pa_varray.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:
1.257 ! moko 25: volatile const char * IDENT_STRING_C="$Id: string.C,v 1.256 2024/10/02 22:54:02 moko Exp $";
1.203 moko 26:
1.41 paf 27: // class
28:
1.126 paf 29: class MString: public Methoded {
1.41 paf 30: public:
1.126 paf 31: MString();
1.41 paf 32: };
1.1 paf 33:
1.126 paf 34: // global variable
35:
1.224 moko 36: DECLARE_CLASS_VAR(string, new MString);
1.126 paf 37:
1.196 moko 38: // void class, inherited from string and thus should be inited afterwards
39:
40: class MVoid: public Methoded {
41: public:
42: MVoid();
43: };
44:
45: // void global variable should be after string global variable
46:
1.224 moko 47: DECLARE_CLASS_VAR(void, new MVoid);
1.196 moko 48:
1.126 paf 49: // defines for statics
50:
51: #define MATCH_VAR_NAME "match"
1.162 misha 52: #define TRIM_START_OPTION "left"
53: #define TRIM_END_OPTION "right"
1.133 paf 54: #define TRIM_BOTH_OPTION "both"
1.126 paf 55:
1.189 misha 56: #define MODE_APPEND "append"
57:
1.220 moko 58: #define UNESCAPE_MODE_JS "js"
59: #define UNESCAPE_MODE_URI "uri"
60:
1.126 paf 61: // statics
62:
63: static const String match_var_name(MATCH_VAR_NAME);
64:
1.1 paf 65: // methods
66:
1.126 paf 67: static void _length(Request& r, MethodParams&) {
1.163 misha 68: double result=GET_SELF(r, VString).string().length(r.charsets.source());
1.233 moko 69: r.write(*new VDouble(result));
1.1 paf 70: }
71:
1.126 paf 72: static void _int(Request& r, MethodParams& params) {
73: const String& self_string=GET_SELF(r, VString).string();
1.72 parser 74: int converted;
1.206 moko 75:
76: if(self_string.is_empty()) {
1.144 paf 77: if(params.count()>0)
78: converted=params.as_int(0, "default must be int", r); // (default)
1.84 parser 79: else
1.206 moko 80: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
81: } else {
82: try {
83: converted=self_string.as_int();
84: } catch(...) { // convert problem
85: if(params.count()>0)
86: converted=params.as_int(0, "default must be int", r); // (default)
87: else
88: rethrow; // we have a problem when no default
89: }
1.72 parser 90: }
1.206 moko 91:
1.233 moko 92: r.write(*new VInt(converted));
1.1 paf 93: }
94:
1.126 paf 95: static void _double(Request& r, MethodParams& params) {
96: const String& self_string=GET_SELF(r, VString).string();
1.206 moko 97:
98: if(self_string.is_empty()) {
1.144 paf 99: if(params.count()>0)
1.233 moko 100: r.write(*new VDouble(params.as_double(0, "default must be double", r))); // (default)
1.84 parser 101: else
1.206 moko 102: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
103: } else {
104: try {
1.233 moko 105: r.write(*new VDouble(self_string.as_double()));
1.206 moko 106: } catch(...) { // convert problem
107: if(params.count()>0)
1.233 moko 108: r.write(*new VDouble(params.as_double(0, "default must be double", r))); // (default)
1.206 moko 109: else
110: rethrow; // we have a problem when no default
111: }
1.72 parser 112: }
1.1 paf 113: }
114:
1.151 misha 115: static void _bool(Request& r, MethodParams& params) {
116: const String& self_string=GET_SELF(r, VString).string();
117: bool converted;
1.206 moko 118: const char *str=self_string.cstr();
119:
120: if(self_string.is_empty()) {
121: if(params.count()>0)
122: converted=params.as_bool(0, "default must be bool", r); // (default)
123: else
124: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
1.207 moko 125: } else if( (str[0]=='T' || str[0]=='t') && (str[1]=='R' || str[1]=='r') && (str[2]=='U' || str[2]=='u') &&
1.206 moko 126: (str[3]=='E' || str[3]=='e') && str[4]==0 ) { // "true"
127: converted=true;
1.207 moko 128: } else if( (str[0]=='F' || str[0]=='f') && (str[1]=='A' || str[1]=='a') && (str[2]=='L' || str[2]=='l') &&
1.206 moko 129: (str[3]=='S' || str[3]=='s') && (str[4]=='E' || str[4]=='e') && str[5]==0 ) { // "false"
130: converted=false;
131: } else {
1.158 misha 132: try {
133: converted=self_string.as_bool();
1.206 moko 134: } catch(...) { // convert problem
135: if(params.count()>0)
136: converted=params.as_bool(0, "default must be bool", r); // (default)
137: else
138: rethrow; // we have a problem when no default
1.158 misha 139: }
1.151 misha 140: }
141:
1.233 moko 142: r.write(VBool::get(converted));
1.151 misha 143: }
144:
1.126 paf 145: /*not static*/void _string_format(Request& r, MethodParams& params) {
1.9 paf 146:
1.126 paf 147: Value& fmt_maybe_code=params[0];
1.95 paf 148: // for some time due to stupid {} in original design
1.99 paf 149: const String& fmt=r.process_to_string(fmt_maybe_code);
1.9 paf 150:
1.256 moko 151: const char* buf=format_double(r.get_self().as_double(), fmt.trim().cstrm());
1.63 parser 152:
1.233 moko 153: r.write(String(buf));
1.9 paf 154: }
1.11 paf 155:
1.126 paf 156: static void _left(Request& r, MethodParams& params) {
1.244 moko 157: int sn=params.as_int(0, "n must be int", r);
1.126 paf 158: const String& string=GET_SELF(r, VString).string();
1.244 moko 159: r.write(sn<0 ? string : string.mid(r.charsets.source(), 0, sn));
1.15 paf 160: }
161:
1.126 paf 162: static void _right(Request& r, MethodParams& params) {
1.244 moko 163: int sn=params.as_int(0, "n must be int", r);
1.216 moko 164: if(sn>0){
1.244 moko 165: size_t n=sn;
1.216 moko 166: const String& string=GET_SELF(r, VString).string();
167: size_t length=string.length(r.charsets.source());
1.233 moko 168: r.write(n<length ? string.mid(r.charsets.source(), length-n, length, length) : string);
1.216 moko 169: }
1.15 paf 170: }
171:
1.126 paf 172: static void _mid(Request& r, MethodParams& params) {
173: const String& string=GET_SELF(r, VString).string();
1.83 parser 174:
1.245 moko 175: int begin=params.as_int(0, "p must be int", r);
176: if(begin<0)
177: throw Exception(PARSER_RUNTIME, 0, "p(%d) must be >=0", begin);
1.138 paf 178:
179: size_t end;
1.164 misha 180: size_t length=0;
1.245 moko 181:
1.138 paf 182: if(params.count()>1) {
1.245 moko 183: int n=params.as_int(1, "n must be int", r);
184: if(n<0)
185: throw Exception(PARSER_RUNTIME, 0, "n(%d) must be >=0", n);
186: end=begin+n;
1.164 misha 187: } else {
188: length=string.length(r.charsets.source());
189: end=length;
190: }
1.163 misha 191:
1.233 moko 192: r.write(string.mid(r.charsets.source(), begin, end, length));
1.15 paf 193: }
194:
1.126 paf 195: static void _pos(Request& r, MethodParams& params) {
196: Value& substr=params.as_no_junction(0, "substr must not be code");
1.16 paf 197:
1.126 paf 198: const String& string=GET_SELF(r, VString).string();
1.245 moko 199: int offset=0;
1.165 misha 200: if(params.count()>1){
201: offset=params.as_int(1, "n must be int", r);
202: if(offset<0)
1.227 moko 203: throw Exception(PARSER_RUNTIME, 0, "n(%d) must be >=0", offset);
1.165 misha 204: }
205:
1.245 moko 206: r.write(*new VInt((int)string.pos(r.charsets.source(), substr.as_string(), offset)));
1.16 paf 207: }
208:
1.250 moko 209: struct Split_action_info {
210: const String& src;
211: ArrayString &result;
212: };
213:
214: static void split_action(Table& , ArrayString* row, int prestart, int prefinish, int poststart, int postfinish, void *info) {
215: Split_action_info& ai=*static_cast<Split_action_info *>(info);
216: if(row) { // begin&middle
217: // piece from last match['prestart'] to beginning of this match['prefinish']
218: ai.result += &ai.src.mid(prestart, prefinish);
219: } else // end
220: if(poststart != postfinish)
221: ai.result += &ai.src.mid(poststart, postfinish);
222: }
223:
1.249 moko 224: static void split_list(Value& delim_value, const String& string, ArrayString& result) {
1.254 moko 225: if(VRegex *vregex=dynamic_cast<VRegex*>(&delim_value)){
1.250 moko 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
1.257 ! moko 240: #define SPLIT_ARRAY 0x10000
1.118 paf 241:
1.126 paf 242: static int split_options(const String* options) {
1.118 paf 243: struct Split_option {
1.126 paf 244: const char* keyL;
245: const char* keyU;
1.118 paf 246: int setBit;
247: int checkBit;
248: } split_option[]={
1.257 ! moko 249: {"l", "L", SPLIT_LEFT, SPLIT_RIGHT}, // 0xAVHRL
1.118 paf 250: {"r", "R", SPLIT_RIGHT, SPLIT_LEFT},
1.257 ! moko 251: {"h", "H", SPLIT_HORIZONTAL, SPLIT_VERTICAL | SPLIT_ARRAY},
! 252: {"v", "V", SPLIT_VERTICAL, SPLIT_HORIZONTAL | SPLIT_ARRAY},
! 253: {"a", "A", SPLIT_ARRAY, SPLIT_VERTICAL | SPLIT_HORIZONTAL},
1.130 paf 254: {0, 0, 0, 0}
1.118 paf 255: };
256:
257: int result=0;
1.126 paf 258: if(options) {
1.118 paf 259: for(Split_option *o=split_option; o->keyL; o++)
1.126 paf 260: if(options->pos(o->keyL)!=STRING_NOT_FOUND
261: || (o->keyU && options->pos(o->keyU)!=STRING_NOT_FOUND)) {
1.118 paf 262: if(result & o->checkBit)
1.238 moko 263: throw Exception(PARSER_RUNTIME, options, "conflicting split options");
1.118 paf 264: result |= o->setBit;
265: }
266: }
267:
268: return result;
269: }
270:
1.156 misha 271: static Table& split_vertical(ArrayString& pieces, bool right, const String* column_name) {
1.126 paf 272: Table::columns_type columns(new ArrayString);
1.156 misha 273: *columns+=column_name;
1.19 paf 274:
1.126 paf 275: Table& table=*new Table(columns, pieces.count());
1.118 paf 276: if(right) { // right
1.126 paf 277: for(int i=pieces.count(); --i>=0; ) {
278: Table::element_type row(new ArrayString);
279: *row+=pieces[i];
280: table+=row;
1.118 paf 281: }
282: } else { // left
1.253 moko 283: for(ArrayString::Iterator i(pieces); i; ) {
1.126 paf 284: Table::element_type row(new ArrayString);
285: *row+=i.next();
286: table+=row;
1.118 paf 287: }
1.61 parser 288: }
1.118 paf 289:
1.126 paf 290: return table;
1.19 paf 291: }
292:
1.128 paf 293: static Table& split_horizontal(ArrayString& pieces, bool right) {
1.126 paf 294: Table& table=*new Table(Table::columns_type(0) /* nameless */);
295: Table::element_type row(new ArrayString(pieces.count()));
1.118 paf 296: if(right) { // right
1.131 paf 297: for(int i=pieces.count(); --i>=0; )
1.126 paf 298: *row+=pieces[i];
1.118 paf 299: } else { // left
1.253 moko 300: for(ArrayString::Iterator i(pieces); i; )
1.126 paf 301: *row+=i.next();
1.118 paf 302: }
1.126 paf 303: table+=row;
1.118 paf 304:
1.126 paf 305: return table;
1.118 paf 306: }
307:
1.257 ! moko 308: static VArray& split_array(ArrayString& pieces, bool right) {
! 309: VArray& result=*new VArray(pieces.count());
! 310: ArrayValue &array=result.array();
! 311: if(right) { // right
! 312: for(int i=pieces.count(); --i>=0; )
! 313: array+=new VString(*pieces[i]);
! 314: } else { // left
! 315: for(ArrayString::Iterator i(pieces); i; )
! 316: array+=new VString(*i.next());
! 317: }
! 318: return result;
! 319: }
! 320:
1.238 moko 321: static void split_with_options(Request& r, MethodParams& params, int bits) {
1.126 paf 322: const String& string=GET_SELF(r, VString).string();
1.176 misha 323: size_t params_count=params.count();
1.19 paf 324:
1.126 paf 325: ArrayString pieces;
1.249 moko 326: split_list(params.as_no_junction(0, "delimiter must not be code"), string, pieces);
1.19 paf 327:
1.118 paf 328: if(!bits) {
1.126 paf 329: const String* options=0;
1.176 misha 330: if(params_count>1)
1.187 misha 331: options=¶ms.as_string(1, OPTIONS_MUST_NOT_BE_CODE);
1.118 paf 332: bits=split_options(options);
333: }
1.21 paf 334:
1.118 paf 335: bool right=(bits & SPLIT_RIGHT) != 0;
336: bool horizontal=(bits & SPLIT_HORIZONTAL) !=0;
1.257 ! moko 337: bool array=(bits & SPLIT_ARRAY) !=0;
1.156 misha 338:
339: const String* column_name=0;
1.176 misha 340: if(params_count>2){
1.156 misha 341: column_name=¶ms.as_string(2, COLUMN_NAME_MUST_BE_STRING);
1.257 ! moko 342: if (horizontal && !column_name->is_empty())
! 343: throw Exception(PARSER_RUNTIME, column_name, "column name cannot be specified when splitting into a table horizontal row");
! 344: if (array && !column_name->is_empty())
! 345: throw Exception(PARSER_RUNTIME, column_name, "column name cannot be specified when splitting into an array");
! 346: }
1.156 misha 347:
1.257 ! moko 348: if(array){
! 349: r.write(split_array(pieces, right));
! 350: } else {
! 351: if(!column_name || column_name->is_empty())
! 352: column_name=new String("piece");
! 353: Table& table=horizontal ? split_horizontal(pieces, right) : split_vertical(pieces, right, column_name);
! 354: r.write(*new VTable(&table));
! 355: }
1.118 paf 356: }
1.126 paf 357: static void _split(Request& r, MethodParams& params) {
358: split_with_options(r, params, 0 /* maybe-determine from param #2 */);
1.118 paf 359: }
1.126 paf 360: static void _lsplit(Request& r, MethodParams& params) {
361: split_with_options(r, params, SPLIT_LEFT);
1.118 paf 362: }
1.126 paf 363: static void _rsplit(Request& r, MethodParams& params) {
364: split_with_options(r, params, SPLIT_RIGHT);
1.17 paf 365: }
366:
1.126 paf 367: static void search_action(Table& table, Table::element_type row, int, int, int, int, void *) {
1.28 paf 368: if(row)
369: table+=row;
1.27 paf 370: }
371:
1.74 parser 372: #ifndef DOXYGEN
1.27 paf 373: struct Replace_action_info {
1.181 misha 374: Request* request;
375: const String* src;
376: String* dest;
1.126 paf 377: VTable* vtable;
378: Value* replacement_code;
1.27 paf 379: };
1.74 parser 380: #endif
1.105 paf 381: /// @todo they can do $global[$result] there, getting pointer to later-invalid local var, kill this
1.238 moko 382: static void replace_action(Table& table, ArrayString* row, int prestart, int prefinish, int poststart, int postfinish, void *info) {
1.27 paf 383: Replace_action_info& ai=*static_cast<Replace_action_info *>(info);
1.31 paf 384: if(row) { // begin&middle
1.104 paf 385: // piece from last match['prestart'] to beginning of this match['prefinish']
386: if(prestart!=prefinish)
387: *ai.dest << ai.src->mid(prestart, prefinish);//ai.dest->APPEND_CONST("-");
1.51 parser 388: // store found parts in one-record VTable
1.126 paf 389: if(table.count()) // middle
1.32 paf 390: table.put(0, row);
391: else // begin
1.30 paf 392: table+=row;
1.181 misha 393:
1.30 paf 394: { // execute 'replacement_code' in 'table' context
1.181 misha 395: if(ai.replacement_code){
396: ai.vtable->set_table(table);
397: *ai.dest << ai.request->process_to_string(*ai.replacement_code);
398: }
1.29 paf 399: }
400: } else // end
1.104 paf 401: *ai.dest << ai.src->mid(poststart, postfinish);
1.27 paf 402: }
403:
1.126 paf 404: static void _match(Request& r, MethodParams& params) {
1.174 misha 405: size_t params_count=params.count();
406:
1.126 paf 407: Value& regexp=params.as_no_junction(0, "regexp must not be code");
1.187 misha 408: Value* options=(params_count>1)?¶ms.as_no_junction(1, OPTIONS_MUST_NOT_BE_CODE):0;
1.174 misha 409:
1.254 moko 410: VRegex* vregex=dynamic_cast<VRegex*>(®exp);
1.174 misha 411: VRegexCleaner vrcleaner;
1.126 paf 412:
1.254 moko 413: if(vregex){
1.174 misha 414: if(options && options->is_defined())
1.255 moko 415: throw Exception(PARSER_RUNTIME, 0, "you cannot specify regex-object and options together");
1.174 misha 416: } else {
1.237 moko 417: vregex=new VRegex(r.charsets.source(), ®exp.as_string(), (options) ? (&options->as_string()) : 0);
1.175 misha 418: vregex->study();
1.174 misha 419: vrcleaner.vregex=vregex;
420: }
1.126 paf 421:
422: const String& src=GET_SELF(r, VString).string();
1.152 misha 423: int matches_count=0;
1.174 misha 424:
425: if(params_count<3) { // search
1.237 moko 426: Table* table=src.match(vregex, search_action, 0, matches_count);
1.174 misha 427:
1.152 misha 428: if(table){
1.233 moko 429: r.write(*new VTable(table));
1.152 misha 430: } else {
1.233 moko 431: r.write(*new VInt(matches_count));
1.152 misha 432: }
433:
1.27 paf 434: } else { // replace
1.181 misha 435:
436: Value* replacement_code=0;
437: bool is_junction=false;
438:
439: Value* replacement=¶ms[2];
440: if(replacement->get_junction()){
441: replacement_code=replacement;
442: is_junction=true;
443: } else if(replacement->is_string()){
444: if(replacement->is_defined())
445: replacement_code=replacement;
446: } else if(!replacement->is_void())
1.238 moko 447: throw Exception(PARSER_RUNTIME, 0, "replacement option should be junction or string");
1.106 paf 448:
1.238 moko 449: Value* default_code=(params_count==4) ? ¶ms.as_junction(3, "default value must be code") : 0;
1.192 misha 450:
1.126 paf 451: String result;
452: VTable* vtable=new VTable;
1.130 paf 453: Replace_action_info info={
454: &r,
455: &src,
456: &result,
457: vtable,
1.181 misha 458: replacement_code
1.130 paf 459: };
1.181 misha 460:
1.191 misha 461: if(is_junction){
1.211 moko 462: Temp_value_element temp(r, *replacement_code->get_junction()->method_frame, match_var_name, vtable);
1.191 misha 463: src.match(vregex, replace_action, &info, matches_count);
464: } else {
465: src.match(vregex, replace_action, &info, matches_count);
466: }
1.181 misha 467:
1.192 misha 468: if(!matches_count && default_code)
469: r.process_write(*default_code);
470: else
1.233 moko 471: r.write(result);
1.27 paf 472: }
1.24 paf 473: }
474:
1.238 moko 475: static void change_case(Request& r, MethodParams&, String::Change_case_kind kind) {
1.126 paf 476: const String& src=GET_SELF(r, VString).string();
1.49 parser 477:
1.233 moko 478: r.write(src.change_case(r.charsets.source(), kind));
1.49 parser 479: }
1.126 paf 480: static void _upper(Request& r, MethodParams& params) {
481: change_case(r, params, String::CC_UPPER);
1.49 parser 482: }
1.126 paf 483: static void _lower(Request& r, MethodParams& params) {
484: change_case(r, params, String::CC_LOWER);
1.49 parser 485: }
486:
1.65 parser 487: #ifndef DOXYGEN
1.126 paf 488: class String_sql_event_handlers: public SQL_Driver_query_event_handlers {
489: bool got_column;
1.65 parser 490: public:
1.126 paf 491: bool got_cell;
1.208 moko 492: const String* result;
1.126 paf 493: public:
1.240 moko 494: String_sql_event_handlers():
1.126 paf 495: got_column(false),
496: got_cell(false),
1.208 moko 497: result(&String::Empty) {}
1.65 parser 498:
1.128 paf 499: bool add_column(SQL_Error& error, const char* /*str*/, size_t /*length*/) {
1.124 paf 500: if(got_column) {
1.240 moko 501: error=SQL_Error("result must contain exactly one column");
1.124 paf 502: return true;
503: }
1.65 parser 504: got_column=true;
1.124 paf 505: return false;
1.65 parser 506: }
1.124 paf 507: bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; }
508: bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; }
1.210 moko 509: bool add_row_cell(SQL_Error& error, const char* str, size_t) {
1.124 paf 510: if(got_cell) {
1.255 moko 511: error=SQL_Error("result must contain no more than one row");
1.124 paf 512: return true;
513: }
514: try {
515: got_cell=true;
1.208 moko 516: result=new String(str, String::L_TAINTED /* no length as 0x00 can be inside */ );
1.124 paf 517: return false;
518: } catch(...) {
1.235 moko 519: error=SQL_Error("exception occurred in String_sql_event_handlers::add_row_cell");
1.124 paf 520: return true;
521: }
1.65 parser 522: }
523: };
524: #endif
1.239 moko 525:
1.141 paf 526: extern int marshal_binds(HashStringValue& hash, SQL_Driver::Placeholder*& placeholders);
527: extern void unmarshal_bind_updates(HashStringValue& hash, int placeholder_count, SQL_Driver::Placeholder* placeholders);
528:
1.204 moko 529: const String* sql_result_string(Request& r, MethodParams& params, Value*& default_code) {
1.126 paf 530: Value& statement=params.as_junction(0, "statement must be code");
1.53 parser 531:
1.141 paf 532: HashStringValue* bind=0;
1.160 misha 533: ulong limit=SQL_NO_LIMIT;
1.70 parser 534: ulong offset=0;
1.81 parser 535: default_code=0;
1.199 misha 536: if(params.count()>1)
1.205 misha 537: if(HashStringValue* options=params.as_hash(1, "sql options")) {
1.199 misha 538: int valid_options=0;
539: if(Value* vbind=options->get(sql_bind_name)) {
540: valid_options++;
541: bind=vbind->get_hash();
542: }
543: if(Value* vlimit=options->get(sql_limit_name)) {
544: valid_options++;
1.230 moko 545: limit=(ulong)r.process(*vlimit).as_double();
1.199 misha 546: }
547: if(Value* voffset=options->get(sql_offset_name)) {
548: valid_options++;
1.230 moko 549: offset=(ulong)r.process(*voffset).as_double();
1.199 misha 550: }
551: if((default_code=options->get(sql_default_name))) {
552: valid_options++;
553: }
554: if(valid_options!=options->count())
555: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.200 misha 556: }
1.70 parser 557:
1.141 paf 558: SQL_Driver::Placeholder* placeholders=0;
559: uint placeholders_count=0;
560: if(bind)
561: placeholders_count=marshal_binds(*bind, placeholders);
562:
1.99 paf 563: const String& statement_string=r.process_to_string(statement);
1.232 moko 564: const char* statement_cstr=statement_string.untaint_cstr(String::L_SQL, r.connection());
1.183 misha 565:
1.240 moko 566: String_sql_event_handlers handlers;
1.160 misha 567:
1.240 moko 568: r.connection()->query(statement_cstr, placeholders_count, placeholders, offset, limit, handlers, statement_string);
1.53 parser 569:
1.141 paf 570: if(bind)
571: unmarshal_bind_updates(*bind, placeholders_count, placeholders);
572:
1.65 parser 573: if(!handlers.got_cell)
574: return 0; // no lines, caller should return second param[default value]
1.62 parser 575:
1.208 moko 576: return handlers.result;
1.53 parser 577: }
578:
1.126 paf 579: static void _sql(Request& r, MethodParams& params) {
1.53 parser 580:
1.126 paf 581: Value* default_code;
1.204 moko 582: const String* string=sql_result_string(r, params, default_code);
1.62 parser 583: if(!string) {
1.81 parser 584: if(default_code) {
1.99 paf 585: string=&r.process_to_string(*default_code);
1.68 parser 586: } else
1.238 moko 587: throw Exception(PARSER_RUNTIME, 0, "produced no result, but no default option specified");
1.62 parser 588: }
1.100 paf 589:
1.233 moko 590: r.write(*string);
1.53 parser 591: }
592:
1.126 paf 593: static void _replace(Request& r, MethodParams& params) {
594: const String& src=GET_SELF(r, VString).string();
1.71 parser 595:
1.201 misha 596: if(params.count()==1) {
597: // ^string.replace[table]
1.248 moko 598: if(Table* table=params.as_table(0, "param")){
599: Dictionary dict(*table);
600: r.write(src.replace(dict));
601: } else
602: r.write(src);
1.201 misha 603: } else {
604: // ^string.replace[from-string;to-string]
1.238 moko 605: Dictionary dict(params.as_string(0, "from must be string"), params.as_string(1, "to must be string"));
1.233 moko 606: r.write(src.replace(dict));
1.201 misha 607: }
1.71 parser 608:
609: }
1.79 parser 610:
1.126 paf 611: static void _save(Request& r, MethodParams& params) {
1.189 misha 612: bool do_append=false;
613: Charset* asked_charset=0;
614:
615: size_t file_name_index=0;
1.214 moko 616: if(params.count()>1) {
1.189 misha 617: if(HashStringValue* options=params.as_no_junction(1, "second parameter should be string or hash").get_hash()){
1.205 misha 618: // ^file.save[filespec;$.charset[] $.append(true)]
1.190 misha 619: int valid_options=0;
1.189 misha 620: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
1.229 moko 621: asked_charset=&pa_charsets.get(vcharset_name->as_string());
1.189 misha 622: valid_options++;
623: }
624: if(Value* vappend=options->get(MODE_APPEND)){
625: do_append=vappend->as_bool();
626: valid_options++;
627: }
628: if(valid_options != options->count())
1.194 misha 629: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.189 misha 630: } else {
1.205 misha 631: // ^file.save[append;filespec]
1.189 misha 632: const String& mode=params.as_string(0, "mode must be string");
633: if(mode==MODE_APPEND){
634: do_append=true;
635: file_name_index++;
636: } else
637: throw Exception(PARSER_RUNTIME,
638: &mode,
639: "unknown mode, must be 'append'");
640: }
1.214 moko 641: }
1.79 parser 642:
1.189 misha 643: const String& file_name=params.as_string(file_name_index, FILE_NAME_MUST_BE_STRING);
1.126 paf 644: const String& src=GET_SELF(r, VString).string();
1.79 parser 645:
1.209 moko 646: String::Body sbody=src.cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets);
1.87 paf 647:
1.79 parser 648: // write
1.246 moko 649: file_write(r.charsets, r.full_disk_path(file_name), sbody.cstr(), sbody.length(), true, do_append, asked_charset);
1.79 parser 650: }
651:
1.126 paf 652: static void _normalize(Request& r, MethodParams&) {
653: const String& src=GET_SELF(r, VString).string();
654:
1.233 moko 655: r.write(src);
1.109 paf 656: }
657:
1.133 paf 658: static void _trim(Request& r, MethodParams& params) {
659: const String& src=GET_SELF(r, VString).string();
660:
661: String::Trim_kind kind=String::TRIM_BOTH;
1.176 misha 662: size_t params_count=params.count();
1.133 paf 663: const char* chars=0;
1.176 misha 664: if(params_count>0) {
665: const String& skind=params.as_string(0, "'where' must be string");
1.214 moko 666: if(!skind.is_empty()) {
1.162 misha 667: if(skind==TRIM_BOTH_OPTION)
668: kind=String::TRIM_BOTH;
669: else if(skind==TRIM_START_OPTION || skind=="start")
1.137 paf 670: kind=String::TRIM_START;
1.162 misha 671: else if(skind==TRIM_END_OPTION || skind=="end")
1.137 paf 672: kind=String::TRIM_END;
1.218 moko 673: else if(params_count==1)
674: chars=skind.cstr();
1.137 paf 675: else
1.238 moko 676: throw Exception(PARSER_RUNTIME, &skind, "'kind' must be one of " TRIM_START_OPTION ", " TRIM_BOTH_OPTION ", " TRIM_END_OPTION);
1.214 moko 677: }
1.133 paf 678:
1.176 misha 679: if(params_count>1) {
1.136 paf 680: const String& schars=params.as_string(1, "'chars' must be string");
1.178 misha 681: if(!schars.is_empty())
1.137 paf 682: chars=schars.cstr();
1.136 paf 683: }
1.133 paf 684: }
685:
1.233 moko 686: r.write(src.trim(kind, chars, &r.charsets.source()));
1.133 paf 687: }
688:
1.241 moko 689: Base64Options base64_encode_options(Request& r, HashStringValue* options) {
690: Base64Options result;
691: if(options) {
692: int valid_options=0;
693: for(HashStringValue::Iterator i(*options); i; i.next()) {
694: String::Body key=i.key();
695: Value* value=i.value();
696: if(key == "pad") {
697: result.pad=r.process(*value).as_bool();
698: valid_options++;
699: } else if(key == "wrap") {
700: result.wrap=r.process(*value).as_bool();
701: valid_options++;
702: } else if(key == "url-safe") {
703: if(r.process(*value).as_bool())
704: result.set_url_safe_abc();
705: valid_options++;
706: }
707: }
708:
709: if(valid_options != options->count())
710: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
711: }
712: return result;
713: }
714:
715: Base64Options base64_decode_options(Request& r, HashStringValue* options) {
716: Base64Options result;
717: if(options) {
718: int valid_options=0;
719: for(HashStringValue::Iterator i(*options); i; i.next() ) {
720: String::Body key=i.key();
721: Value* value=i.value();
722: if(key == "pad") {
723: result.pad=r.process(*value).as_bool();
724: valid_options++;
725: } else if(key == "strict") {
726: result.strict=r.process(*value).as_bool();
727: valid_options++;
728: } else if(key == "url-safe") {
729: if(r.process(*value).as_bool())
730: result.set_url_safe_abc();
731: valid_options++;
732: }
733: }
734:
735: if(valid_options != options->count())
736: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
737: }
738: return result;
739: }
740:
1.146 paf 741: static void _base64(Request& r, MethodParams& params) {
1.219 moko 742: if(&r.get_self() == string_class) {
1.241 moko 743: // decode: ^string:base64[encoded[;options]]
1.219 moko 744: const char* cstr=params.count() ? params.as_string(0, PARAMETER_MUST_BE_STRING).cstr() : "";
1.241 moko 745: Base64Options options = base64_decode_options(r, params.count() > 1 ? params.as_hash(1) : NULL);
746:
1.169 misha 747: char* decoded=0;
1.243 moko 748: size_t length=pa_base64_decode(cstr, strlen(cstr), decoded, options);
1.202 misha 749:
1.169 misha 750: if(decoded && length){
1.242 moko 751: if(memchr(decoded, 0, length))
752: throw Exception(PARSER_RUNTIME, 0, "Invalid \\x00 character found while decoding to string. Decode to file instead.");
1.169 misha 753:
754: fix_line_breaks(decoded, length);
1.242 moko 755:
1.179 misha 756: if(length)
1.233 moko 757: r.write(*new String(decoded, String::L_TAINTED));
1.169 misha 758: }
1.147 paf 759: } else {
1.241 moko 760: // encode: ^str.base64[options]
1.148 paf 761: VString& self=GET_SELF(r, VString);
762: const char* cstr=self.string().cstr();
1.241 moko 763: Base64Options options = base64_encode_options(r, params.count() ? params.as_hash(0) : NULL);
764: const char* encoded=pa_base64_encode(cstr, strlen(cstr), options);
765: r.write(*new String(encoded, String::L_TAINTED /*once ?param=base64(something) was needed*/ ));
1.146 paf 766: }
767: }
768:
1.215 moko 769: static void _idna(Request& r, MethodParams& params) {
1.219 moko 770: if(&r.get_self() == string_class) {
1.215 moko 771: // decode: ^string:idna[encoded]
1.219 moko 772: const char* cstr=params.count() ? params.as_string(0, PARAMETER_MUST_BE_STRING).cstr() : "";
1.233 moko 773: r.write(*new String(pa_idna_decode(cstr, r.charsets.source()), String::L_TAINTED));
1.215 moko 774: } else {
775: // encode: ^str.idna[]
776: VString& self=GET_SELF(r, VString);
777: const char* cstr=self.string().cstr();
1.233 moko 778: r.write(*new String(pa_idna_encode(cstr, r.charsets.source()), String::L_TAINTED));
1.215 moko 779: }
780: }
781:
1.220 moko 782: static void _js_escape(Request& r, MethodParams&){
1.167 misha 783: const String& src=GET_SELF(r, VString).string();
1.233 moko 784: r.write(src.escape(r.charsets.source()));
1.167 misha 785: }
786:
1.220 moko 787: static void _js_unescape(Request& r, MethodParams& params){
1.167 misha 788: const String& src=params.as_string(0, PARAMETER_MUST_BE_STRING);
1.193 misha 789: if(const char* result=unescape_chars(src.cstr(), src.length(), &r.charsets.source(), true))
1.233 moko 790: r.write(*new String(result, String::L_TAINTED));
1.167 misha 791: }
792:
1.220 moko 793: static void _unescape(Request& r, MethodParams& params){
794: const String& mode=params.as_string(0, MODE_MUST_NOT_BE_CODE);
795: const String& src=params.as_string(1, PARAMETER_MUST_BE_STRING);
796:
797: Charset* from_charset=&r.charsets.client();
798:
799: if(params.count() > 2)
800: if(HashStringValue* options=params.as_hash(2)) {
801: int valid_options=0;
802: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
1.229 moko 803: from_charset=&pa_charsets.get(vcharset_name->as_string());
1.220 moko 804: valid_options++;
805: }
806: if(valid_options!=options->count())
807: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
808: }
809:
810: bool mode_js;
811: if(mode==UNESCAPE_MODE_JS){
812: mode_js=true;
813: } else if(mode==UNESCAPE_MODE_URI){
814: mode_js=false;
815: } else {
1.228 moko 816: throw Exception(PARSER_RUNTIME, &mode, "is invalid mode, must be either '" UNESCAPE_MODE_JS "' or '" UNESCAPE_MODE_URI "'");
1.220 moko 817: }
818:
819: const char* unescaped=unescape_chars(src.cstr(), src.length(), from_charset, mode_js);
820: if(*unescaped){
1.221 moko 821: const String* result=new String(Charset::transcode(unescaped, *from_charset, r.charsets.source()), String::L_TAINTED);
1.233 moko 822: r.write(*result);
1.220 moko 823: }
824: }
825:
1.225 moko 826: static void _contains(Request& r, MethodParams& params) {
827: // empty or whitespace string is hash compatible
828: GET_SELF(r, VString).get_element(params.as_string(0, "key must be string"));
829: // ignoring result as it allways null
1.233 moko 830: r.write(VBool::get(false));
1.225 moko 831: }
832:
1.41 paf 833: // constructor
834:
1.126 paf 835: MString::MString(): Methoded("string") {
1.1 paf 836: // ^string.length[]
1.41 paf 837: add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0);
1.6 paf 838:
1.1 paf 839: // ^string.int[]
1.72 parser 840: // ^string.int(default)
841: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1);
1.1 paf 842: // ^string.double[]
1.72 parser 843: // ^string.double(default)
844: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1);
1.151 misha 845: // ^void.bool[]
846: // ^void.bool(default)
847: add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1);
1.9 paf 848:
1.165 misha 849: // ^string.format[format]
1.41 paf 850: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.14 paf 851:
1.15 paf 852: // ^string.left(n)
1.41 paf 853: add_native_method("left", Method::CT_DYNAMIC, _left, 1, 1);
1.15 paf 854: // ^string.right(n)
1.41 paf 855: add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1);
1.165 misha 856: // ^string.mid(p)
1.15 paf 857: // ^string.mid(p;n)
1.82 parser 858: add_native_method("mid", Method::CT_DYNAMIC, _mid, 1, 2);
1.16 paf 859:
860: // ^string.pos[substr]
1.165 misha 861: // ^string.pos[substr](n)
862: add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 2);
1.17 paf 863:
1.118 paf 864: // ^string.split[delim]
865: // ^string.split[delim][options]
1.156 misha 866: // ^string.split[delim][options][column name]
867: add_native_method("split", Method::CT_DYNAMIC, _split, 1, 3);
1.236 moko 868: // old names for backward compatibility
869: // ^string.lsplit[delim]
870: add_native_method("lsplit", Method::CT_DYNAMIC, _lsplit, 1, 1);
871: // ^string.rsplit[delim]
872: add_native_method("rsplit", Method::CT_DYNAMIC, _rsplit, 1, 1);
873:
1.32 paf 874: // ^string.match[regexp][options]
875: // ^string.match[regexp][options]{replacement-code}
1.192 misha 876: // ^string.match[regexp][options]{replacement-code}{code-if-nothing-is-found}
877: add_native_method("match", Method::CT_DYNAMIC, _match, 1, 4);
1.49 parser 878:
1.165 misha 879: // ^string.upper[]
1.49 parser 880: add_native_method("upper", Method::CT_DYNAMIC, _upper, 0, 0);
1.165 misha 881: // ^string.lower[]
1.49 parser 882: add_native_method("lower", Method::CT_DYNAMIC, _lower, 0, 0);
1.53 parser 883:
1.189 misha 884: // ^string:sql{query}
885: // ^string:sql{query}[options hash]
1.67 parser 886: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.71 parser 887:
888: // ^string.replace[table]
1.201 misha 889: add_native_method("replace", Method::CT_DYNAMIC, _replace, 1, 2);
1.79 parser 890:
1.189 misha 891: // ^string.save[append][file]
892: // ^string.save[file]
893: // ^string.save[file][$.append(true) $.charset[...]]
1.87 paf 894: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2);
1.109 paf 895:
1.112 paf 896: // ^string.normalize[]
897: add_native_method("normalize", Method::CT_DYNAMIC, _normalize, 0, 0);
1.133 paf 898:
899: // ^string.trim[[start|both|end][;chars]]
900: add_native_method("trim", Method::CT_DYNAMIC, _trim, 0, 2);
1.139 paf 901:
1.146 paf 902: // ^string.base64[] << encode
1.215 moko 903: // ^string:base64[encoded string] << decode
1.202 misha 904: add_native_method("base64", Method::CT_ANY, _base64, 0, 2);
1.167 misha 905:
1.215 moko 906: // ^string.idna[] << encode
907: // ^string:idna[encoded string] << decode
908: add_native_method("idna", Method::CT_ANY, _idna, 0, 1);
909:
1.168 misha 910: // ^string.js-escape[]
1.220 moko 911: add_native_method("js-escape", Method::CT_DYNAMIC, _js_escape, 0, 0);
1.189 misha 912:
1.168 misha 913: // ^string:js-unescape[escaped%uXXXXstring]
1.220 moko 914: add_native_method("js-unescape", Method::CT_STATIC, _js_unescape, 1, 1);
915:
916: // ^string:unescape[js|uri;escaped;$.charset[...]]
917: add_native_method("unescape", Method::CT_STATIC, _unescape, 2, 3);
1.225 moko 918:
919: // ^string.contains[key] for hash compatibility
920: add_native_method("contains", Method::CT_DYNAMIC, _contains, 1, 1);
1.220 moko 921: }
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