Annotation of parser3/src/classes/string.C, revision 1.222
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:
1.222 ! moko 23: volatile const char * IDENT_STRING_C="$Id: string.C,v 1.221 2015/10/08 23:14:56 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:
34: DECLARE_CLASS_VAR(string, new MString, 0);
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:
45: DECLARE_CLASS_VAR(void, new MVoid, 0);
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();
1.72 parser 95: double converted;
1.206 moko 96:
97: if(self_string.is_empty()) {
1.144 paf 98: if(params.count()>0)
99: converted=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 {
104: converted=self_string.as_double();
105: } catch(...) { // convert problem
106: if(params.count()>0)
107: converted=params.as_double(0, "default must be double", r); // (default)
108: else
109: rethrow; // we have a problem when no default
110: }
1.72 parser 111: }
112:
1.126 paf 113: r.write_no_lang(*new VDouble(converted));
1.1 paf 114: }
115:
1.151 misha 116: static void _bool(Request& r, MethodParams& params) {
117: const String& self_string=GET_SELF(r, VString).string();
118: bool converted;
1.206 moko 119: const char *str=self_string.cstr();
120:
121: if(self_string.is_empty()) {
122: if(params.count()>0)
123: converted=params.as_bool(0, "default must be bool", r); // (default)
124: else
125: throw Exception(PARSER_RUNTIME, 0, "unable to convert empty string without default specified");
1.207 moko 126: } else if( (str[0]=='T' || str[0]=='t') && (str[1]=='R' || str[1]=='r') && (str[2]=='U' || str[2]=='u') &&
1.206 moko 127: (str[3]=='E' || str[3]=='e') && str[4]==0 ) { // "true"
128: converted=true;
1.207 moko 129: } else if( (str[0]=='F' || str[0]=='f') && (str[1]=='A' || str[1]=='a') && (str[2]=='L' || str[2]=='l') &&
1.206 moko 130: (str[3]=='S' || str[3]=='s') && (str[4]=='E' || str[4]=='e') && str[5]==0 ) { // "false"
131: converted=false;
132: } else {
1.158 misha 133: try {
134: converted=self_string.as_bool();
1.206 moko 135: } catch(...) { // convert problem
136: if(params.count()>0)
137: converted=params.as_bool(0, "default must be bool", r); // (default)
138: else
139: rethrow; // we have a problem when no default
1.158 misha 140: }
1.151 misha 141: }
142:
1.172 misha 143: r.write_no_lang(VBool::get(converted));
1.151 misha 144: }
145:
1.126 paf 146: /*not static*/void _string_format(Request& r, MethodParams& params) {
1.9 paf 147:
1.126 paf 148: Value& fmt_maybe_code=params[0];
1.95 paf 149: // for some time due to stupid {} in original design
1.99 paf 150: const String& fmt=r.process_to_string(fmt_maybe_code);
1.9 paf 151:
1.159 misha 152: const char* buf=format(r.get_self().as_double(), fmt.trim().cstrm());
1.63 parser 153:
1.126 paf 154: r.write_no_lang(String(buf));
1.9 paf 155: }
1.11 paf 156:
1.126 paf 157: static void _left(Request& r, MethodParams& params) {
1.138 paf 158: ssize_t sn=params.as_int(0, "n must be int", r);
1.126 paf 159: const String& string=GET_SELF(r, VString).string();
1.216 moko 160: r.write_assign_lang(sn<0 ? string : string.mid(r.charsets.source(), 0, (size_t)sn));
1.15 paf 161: }
162:
1.126 paf 163: static void _right(Request& r, MethodParams& params) {
1.217 moko 164: ssize_t sn=params.as_int(0, "n must be int", r);
1.216 moko 165: if(sn>0){
166: size_t n=(size_t)sn;
167: const String& string=GET_SELF(r, VString).string();
168: size_t length=string.length(r.charsets.source());
169: r.write_assign_lang(n<length ? string.mid(r.charsets.source(), length-n, length, length) : string);
170: }
1.15 paf 171: }
172:
1.126 paf 173: static void _mid(Request& r, MethodParams& params) {
174: const String& string=GET_SELF(r, VString).string();
1.83 parser 175:
1.138 paf 176: ssize_t sbegin=params.as_int(0, "p must be int", r);
177: if(sbegin<0)
1.153 misha 178: throw Exception(PARSER_RUNTIME,
1.138 paf 179: 0,
180: "p(%d) must be >=0", sbegin);
181: size_t begin=(size_t)sbegin;
182:
183: size_t end;
1.164 misha 184: size_t length=0;
1.138 paf 185: if(params.count()>1) {
186: ssize_t sn=params.as_int(1, "n must be int", r);
187: if(sn<0)
1.153 misha 188: throw Exception(PARSER_RUNTIME,
1.138 paf 189: 0,
190: "n(%d) must be >=0", sn);
191: end=begin+(size_t)sn;
1.164 misha 192: } else {
193: length=string.length(r.charsets.source());
194: end=length;
195: }
1.163 misha 196:
1.164 misha 197: r.write_assign_lang(string.mid(r.charsets.source(), begin, end, length));
1.15 paf 198: }
199:
1.126 paf 200: static void _pos(Request& r, MethodParams& params) {
201: Value& substr=params.as_no_junction(0, "substr must not be code");
1.16 paf 202:
1.126 paf 203: const String& string=GET_SELF(r, VString).string();
1.165 misha 204: ssize_t offset=0;
205: if(params.count()>1){
206: offset=params.as_int(1, "n must be int", r);
207: if(offset<0)
208: throw Exception(PARSER_RUNTIME,
209: 0,
210: "n(%d) must be >=0", offset);
211: }
212:
1.166 misha 213: r.write_no_lang(*new VInt((int)string.pos(r.charsets.source(), substr.as_string(), (size_t)offset)));
1.16 paf 214: }
215:
1.128 paf 216: static void split_list(MethodParams& params, int paramIndex,
1.126 paf 217: const String& string,
218: ArrayString& result) {
219: Value& delim_value=params.as_no_junction(paramIndex, "delimiter must not be code");
1.23 paf 220:
1.126 paf 221: size_t pos_after=0;
222: string.split(result, pos_after, delim_value.as_string());
1.19 paf 223: }
224:
1.118 paf 225: #define SPLIT_LEFT 0x0001
226: #define SPLIT_RIGHT 0x0010
227: #define SPLIT_HORIZONTAL 0x0100
228: #define SPLIT_VERTICAL 0x1000
229:
1.126 paf 230: static int split_options(const String* options) {
1.118 paf 231: struct Split_option {
1.126 paf 232: const char* keyL;
233: const char* keyU;
1.118 paf 234: int setBit;
235: int checkBit;
236: } split_option[]={
237: {"l", "L", SPLIT_LEFT, SPLIT_RIGHT}, // 0xVHRL
238: {"r", "R", SPLIT_RIGHT, SPLIT_LEFT},
239: {"h", "H", SPLIT_HORIZONTAL, SPLIT_VERTICAL},
240: {"v", "V", SPLIT_VERTICAL, SPLIT_HORIZONTAL},
1.130 paf 241: {0, 0, 0, 0}
1.118 paf 242: };
243:
244: int result=0;
1.126 paf 245: if(options) {
1.118 paf 246: for(Split_option *o=split_option; o->keyL; o++)
1.126 paf 247: if(options->pos(o->keyL)!=STRING_NOT_FOUND
248: || (o->keyU && options->pos(o->keyU)!=STRING_NOT_FOUND)) {
1.118 paf 249: if(result & o->checkBit)
1.153 misha 250: throw Exception(PARSER_RUNTIME,
1.118 paf 251: options,
252: "conflicting split options");
253: result |= o->setBit;
254: }
255: }
256:
257: return result;
258: }
259:
1.156 misha 260: static Table& split_vertical(ArrayString& pieces, bool right, const String* column_name) {
1.126 paf 261: Table::columns_type columns(new ArrayString);
1.156 misha 262: *columns+=column_name;
1.19 paf 263:
1.126 paf 264: Table& table=*new Table(columns, pieces.count());
1.118 paf 265: if(right) { // right
1.126 paf 266: for(int i=pieces.count(); --i>=0; ) {
267: Table::element_type row(new ArrayString);
268: *row+=pieces[i];
269: table+=row;
1.118 paf 270: }
271: } else { // left
1.126 paf 272: Array_iterator<const String*> i(pieces);
1.118 paf 273: while(i.has_next()) {
1.126 paf 274: Table::element_type row(new ArrayString);
275: *row+=i.next();
276: table+=row;
1.118 paf 277: }
1.61 parser 278: }
1.118 paf 279:
1.126 paf 280: return table;
1.19 paf 281: }
282:
1.128 paf 283: static Table& split_horizontal(ArrayString& pieces, bool right) {
1.126 paf 284: Table& table=*new Table(Table::columns_type(0) /* nameless */);
285: Table::element_type row(new ArrayString(pieces.count()));
1.118 paf 286: if(right) { // right
1.131 paf 287: for(int i=pieces.count(); --i>=0; )
1.126 paf 288: *row+=pieces[i];
1.118 paf 289: } else { // left
1.126 paf 290: for(Array_iterator<const String*> i(pieces); i.has_next(); )
291: *row+=i.next();
1.118 paf 292: }
1.126 paf 293: table+=row;
1.118 paf 294:
1.126 paf 295: return table;
1.118 paf 296: }
297:
1.126 paf 298: static void split_with_options(Request& r, MethodParams& params,
1.118 paf 299: int bits) {
1.126 paf 300: const String& string=GET_SELF(r, VString).string();
1.176 misha 301: size_t params_count=params.count();
1.19 paf 302:
1.126 paf 303: ArrayString pieces;
1.128 paf 304: split_list(params, 0, string, pieces);
1.19 paf 305:
1.118 paf 306: if(!bits) {
1.126 paf 307: const String* options=0;
1.176 misha 308: if(params_count>1)
1.187 misha 309: options=¶ms.as_string(1, OPTIONS_MUST_NOT_BE_CODE);
1.126 paf 310:
1.118 paf 311: bits=split_options(options);
312: }
1.21 paf 313:
1.118 paf 314: bool right=(bits & SPLIT_RIGHT) != 0;
315: bool horizontal=(bits & SPLIT_HORIZONTAL) !=0;
1.156 misha 316:
317: const String* column_name=0;
1.176 misha 318: if(params_count>2){
1.156 misha 319: column_name=¶ms.as_string(2, COLUMN_NAME_MUST_BE_STRING);
1.178 misha 320: if (horizontal && !column_name->is_empty())
1.156 misha 321: throw Exception(PARSER_RUNTIME,
322: column_name,
323: "column name can't be specified with horisontal split");
324: }
1.178 misha 325: if(!column_name || column_name->is_empty())
1.156 misha 326: column_name=new String("piece");
327:
328: Table& table=horizontal?split_horizontal(pieces, right):split_vertical(pieces, right, column_name);
1.17 paf 329:
1.126 paf 330: r.write_no_lang(*new VTable(&table));
1.118 paf 331: }
1.126 paf 332: static void _split(Request& r, MethodParams& params) {
333: split_with_options(r, params, 0 /* maybe-determine from param #2 */);
1.118 paf 334: }
1.126 paf 335: static void _lsplit(Request& r, MethodParams& params) {
336: split_with_options(r, params, SPLIT_LEFT);
1.118 paf 337: }
1.126 paf 338: static void _rsplit(Request& r, MethodParams& params) {
339: split_with_options(r, params, SPLIT_RIGHT);
1.17 paf 340: }
341:
1.126 paf 342: static void search_action(Table& table, Table::element_type row, int, int, int, int, void *) {
1.28 paf 343: if(row)
344: table+=row;
1.27 paf 345: }
346:
1.74 parser 347: #ifndef DOXYGEN
1.27 paf 348: struct Replace_action_info {
1.181 misha 349: Request* request;
350: const String* src;
351: String* dest;
1.126 paf 352: VTable* vtable;
353: Value* replacement_code;
1.27 paf 354: };
1.74 parser 355: #endif
1.105 paf 356: /// @todo they can do $global[$result] there, getting pointer to later-invalid local var, kill this
1.126 paf 357: static void replace_action(Table& table, ArrayString* row,
1.181 misha 358: int prestart, int prefinish,
359: int poststart, int postfinish,
360: void *info) {
1.27 paf 361: Replace_action_info& ai=*static_cast<Replace_action_info *>(info);
1.31 paf 362: if(row) { // begin&middle
1.104 paf 363: // piece from last match['prestart'] to beginning of this match['prefinish']
364: if(prestart!=prefinish)
365: *ai.dest << ai.src->mid(prestart, prefinish);//ai.dest->APPEND_CONST("-");
1.51 parser 366: // store found parts in one-record VTable
1.126 paf 367: if(table.count()) // middle
1.32 paf 368: table.put(0, row);
369: else // begin
1.30 paf 370: table+=row;
1.181 misha 371:
1.30 paf 372: { // execute 'replacement_code' in 'table' context
1.181 misha 373: if(ai.replacement_code){
374: ai.vtable->set_table(table);
375: *ai.dest << ai.request->process_to_string(*ai.replacement_code);
376: }
1.29 paf 377: }
378: } else // end
1.104 paf 379: *ai.dest << ai.src->mid(poststart, postfinish);
1.27 paf 380: }
381:
1.126 paf 382: static void _match(Request& r, MethodParams& params) {
1.174 misha 383: size_t params_count=params.count();
384:
1.126 paf 385: Value& regexp=params.as_no_junction(0, "regexp must not be code");
1.187 misha 386: Value* options=(params_count>1)?¶ms.as_no_junction(1, OPTIONS_MUST_NOT_BE_CODE):0;
1.174 misha 387:
388: VRegex* vregex;
389: VRegexCleaner vrcleaner;
1.126 paf 390:
1.188 misha 391: if(Value* value=regexp.as(VREGEX_TYPE)){
1.174 misha 392: if(options && options->is_defined())
393: throw Exception(PARSER_RUNTIME,
394: 0,
395: "you can not specify regex-object and options together"
396: );
397: vregex=static_cast<VRegex*>(value);
398: } else {
399: vregex=new VRegex(r.charsets.source(),
400: ®exp.as_string(),
401: (options)?(&options->as_string()):0);
1.175 misha 402: vregex->study();
1.174 misha 403: vrcleaner.vregex=vregex;
404: }
1.126 paf 405:
406: Temp_lang temp_lang(r, String::L_PASS_APPENDED);
407: const String& src=GET_SELF(r, VString).string();
1.152 misha 408: int matches_count=0;
1.174 misha 409:
410: if(params_count<3) { // search
411: Table* table=src.match(vregex,
1.64 parser 412: search_action, 0,
1.152 misha 413: matches_count);
1.174 misha 414:
1.152 misha 415: if(table){
1.176 misha 416: r.write_no_lang(*new VTable(table));
1.152 misha 417: } else {
1.173 misha 418: r.write_no_lang(*new VInt(matches_count));
1.152 misha 419: }
420:
1.27 paf 421: } else { // replace
1.181 misha 422:
423: Value* replacement_code=0;
424: bool is_junction=false;
425:
426: Value* replacement=¶ms[2];
427: if(replacement->get_junction()){
428: replacement_code=replacement;
429: is_junction=true;
430: } else if(replacement->is_string()){
431: if(replacement->is_defined())
432: replacement_code=replacement;
433: } else if(!replacement->is_void())
434: throw Exception(PARSER_RUNTIME,
435: 0,
436: "replacement option should be junction or string");
1.106 paf 437:
1.192 misha 438: Value* default_code=(params_count==4)?¶ms.as_junction(3, "default value must be code"):0;
439:
1.126 paf 440: String result;
441: VTable* vtable=new VTable;
1.130 paf 442: Replace_action_info info={
443: &r,
444: &src,
445: &result,
446: vtable,
1.181 misha 447: replacement_code
1.130 paf 448: };
1.181 misha 449:
1.191 misha 450: if(is_junction){
1.211 moko 451: Temp_value_element temp(r, *replacement_code->get_junction()->method_frame, match_var_name, vtable);
1.191 misha 452: src.match(vregex, replace_action, &info, matches_count);
453: } else {
454: src.match(vregex, replace_action, &info, matches_count);
455: }
1.181 misha 456:
1.192 misha 457: if(!matches_count && default_code)
458: r.process_write(*default_code);
459: else
460: r.write_assign_lang(result);
1.27 paf 461: }
1.24 paf 462: }
463:
1.128 paf 464: static void change_case(Request& r, MethodParams&,
1.49 parser 465: String::Change_case_kind kind) {
1.126 paf 466: const String& src=GET_SELF(r, VString).string();
1.49 parser 467:
1.126 paf 468: r.write_assign_lang(src.change_case(r.charsets.source(), kind));
1.49 parser 469: }
1.126 paf 470: static void _upper(Request& r, MethodParams& params) {
471: change_case(r, params, String::CC_UPPER);
1.49 parser 472: }
1.126 paf 473: static void _lower(Request& r, MethodParams& params) {
474: change_case(r, params, String::CC_LOWER);
1.49 parser 475: }
476:
1.65 parser 477: #ifndef DOXYGEN
1.126 paf 478: class String_sql_event_handlers: public SQL_Driver_query_event_handlers {
479: const String& statement_string; const char* statement_cstr;
480: bool got_column;
1.65 parser 481: public:
1.126 paf 482: bool got_cell;
1.208 moko 483: const String* result;
1.126 paf 484: public:
485: String_sql_event_handlers(
486: const String& astatement_string, const char* astatement_cstr):
487: statement_string(astatement_string), statement_cstr(astatement_cstr),
488: got_column(false),
489: got_cell(false),
1.208 moko 490: result(&String::Empty) {}
1.65 parser 491:
1.128 paf 492: bool add_column(SQL_Error& error, const char* /*str*/, size_t /*length*/) {
1.124 paf 493: if(got_column) {
1.153 misha 494: error=SQL_Error(PARSER_RUNTIME,
1.126 paf 495: //statement_string,
1.65 parser 496: "result must contain exactly one column");
1.124 paf 497: return true;
498: }
1.65 parser 499: got_column=true;
1.124 paf 500: return false;
1.65 parser 501: }
1.124 paf 502: bool before_rows(SQL_Error& /*error*/ ) { /* ignore */ return false; }
503: bool add_row(SQL_Error& /*error*/) { /* ignore */ return false; }
1.210 moko 504: bool add_row_cell(SQL_Error& error, const char* str, size_t) {
1.124 paf 505: if(got_cell) {
1.153 misha 506: error=SQL_Error(PARSER_RUNTIME,
1.126 paf 507: //statement_string,
1.65 parser 508: "result must not contain more then one row");
1.124 paf 509: return true;
510: }
1.65 parser 511:
1.124 paf 512: try {
513: got_cell=true;
1.208 moko 514: result=new String(str, String::L_TAINTED /* no length as 0x00 can be inside */ );
1.124 paf 515: return false;
516: } catch(...) {
517: error=SQL_Error("exception occured in String_sql_event_handlers::add_row_cell");
518: return true;
519: }
1.65 parser 520: }
521: };
522: #endif
1.141 paf 523: extern String sql_bind_name;
1.126 paf 524: extern String sql_limit_name;
525: extern String sql_offset_name;
526: extern String sql_default_name;
527: extern String sql_distinct_name;
1.141 paf 528: extern int marshal_binds(HashStringValue& hash, SQL_Driver::Placeholder*& placeholders);
529: extern void unmarshal_bind_updates(HashStringValue& hash, int placeholder_count, SQL_Driver::Placeholder* placeholders);
530:
1.204 moko 531: const String* sql_result_string(Request& r, MethodParams& params, Value*& default_code) {
1.126 paf 532: Value& statement=params.as_junction(0, "statement must be code");
1.53 parser 533:
1.141 paf 534: HashStringValue* bind=0;
1.160 misha 535: ulong limit=SQL_NO_LIMIT;
1.70 parser 536: ulong offset=0;
1.81 parser 537: default_code=0;
1.199 misha 538: if(params.count()>1)
1.205 misha 539: if(HashStringValue* options=params.as_hash(1, "sql options")) {
1.199 misha 540: int valid_options=0;
541: if(Value* vbind=options->get(sql_bind_name)) {
542: valid_options++;
543: bind=vbind->get_hash();
544: }
545: if(Value* vlimit=options->get(sql_limit_name)) {
546: valid_options++;
547: limit=(ulong)r.process_to_value(*vlimit).as_double();
548: }
549: if(Value* voffset=options->get(sql_offset_name)) {
550: valid_options++;
551: offset=(ulong)r.process_to_value(*voffset).as_double();
552: }
553: if((default_code=options->get(sql_default_name))) {
554: valid_options++;
555: }
556: if(valid_options!=options->count())
557: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.200 misha 558: }
1.70 parser 559:
1.141 paf 560: SQL_Driver::Placeholder* placeholders=0;
561: uint placeholders_count=0;
562: if(bind)
563: placeholders_count=marshal_binds(*bind, placeholders);
564:
1.126 paf 565: Temp_lang temp_lang(r, String::L_SQL);
1.99 paf 566: const String& statement_string=r.process_to_string(statement);
1.185 misha 567: const char* statement_cstr=statement_string.untaint_cstr(r.flang, r.connection());
1.183 misha 568:
1.126 paf 569: String_sql_event_handlers handlers(statement_string, statement_cstr);
1.160 misha 570:
1.126 paf 571: r.connection()->query(
1.140 paf 572: statement_cstr,
1.142 paf 573: placeholders_count, placeholders,
1.140 paf 574: offset, limit,
1.117 paf 575: handlers,
576: statement_string);
1.53 parser 577:
1.141 paf 578: if(bind)
579: unmarshal_bind_updates(*bind, placeholders_count, placeholders);
580:
1.65 parser 581: if(!handlers.got_cell)
582: return 0; // no lines, caller should return second param[default value]
1.62 parser 583:
1.208 moko 584: return handlers.result;
1.53 parser 585: }
586:
1.126 paf 587: static void _sql(Request& r, MethodParams& params) {
1.53 parser 588:
1.126 paf 589: Value* default_code;
1.204 moko 590: const String* string=sql_result_string(r, params, default_code);
1.62 parser 591: if(!string) {
1.81 parser 592: if(default_code) {
1.99 paf 593: string=&r.process_to_string(*default_code);
1.68 parser 594: } else
1.153 misha 595: throw Exception(PARSER_RUNTIME,
1.126 paf 596: 0,
1.81 parser 597: "produced no result, but no default option specified");
1.62 parser 598: }
1.100 paf 599:
1.102 paf 600: r.write_assign_lang(*string);
1.53 parser 601: }
602:
1.126 paf 603: static void _replace(Request& r, MethodParams& params) {
604: const String& src=GET_SELF(r, VString).string();
1.71 parser 605:
1.201 misha 606: if(params.count()==1) {
607: // ^string.replace[table]
1.205 misha 608: Table* table=params.as_table(0, "param");
1.201 misha 609: Dictionary dict(*table);
610: r.write_assign_lang(src.replace(dict));
611: } else {
612: // ^string.replace[from-string;to-string]
613: Dictionary dict(
614: params.as_string(0, "from must be string"),
615: params.as_string(1, "to must be string")
616: );
617: r.write_assign_lang(src.replace(dict));
618: }
1.71 parser 619:
620: }
1.79 parser 621:
1.126 paf 622: static void _save(Request& r, MethodParams& params) {
1.189 misha 623: bool do_append=false;
624: Charset* asked_charset=0;
625:
626: size_t file_name_index=0;
1.214 moko 627: if(params.count()>1) {
1.189 misha 628: if(HashStringValue* options=params.as_no_junction(1, "second parameter should be string or hash").get_hash()){
1.205 misha 629: // ^file.save[filespec;$.charset[] $.append(true)]
1.190 misha 630: int valid_options=0;
1.189 misha 631: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
632: asked_charset=&::charsets.get(vcharset_name->as_string().change_case(r.charsets.source(), String::CC_UPPER));
633: valid_options++;
634: }
635: if(Value* vappend=options->get(MODE_APPEND)){
636: do_append=vappend->as_bool();
637: valid_options++;
638: }
639: if(valid_options != options->count())
1.194 misha 640: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.189 misha 641: } else {
1.205 misha 642: // ^file.save[append;filespec]
1.189 misha 643: const String& mode=params.as_string(0, "mode must be string");
644: if(mode==MODE_APPEND){
645: do_append=true;
646: file_name_index++;
647: } else
648: throw Exception(PARSER_RUNTIME,
649: &mode,
650: "unknown mode, must be 'append'");
651: }
1.214 moko 652: }
1.79 parser 653:
1.189 misha 654: const String& file_name=params.as_string(file_name_index, FILE_NAME_MUST_BE_STRING);
1.126 paf 655: const String& src=GET_SELF(r, VString).string();
1.79 parser 656:
1.209 moko 657: String::Body sbody=src.cstr_to_string_body_untaint(String::L_AS_IS, r.connection(false), &r.charsets);
1.87 paf 658:
1.79 parser 659: // write
1.189 misha 660: file_write(r.charsets, r.absolute(file_name), sbody.cstr(), sbody.length(), true, do_append, asked_charset);
1.79 parser 661: }
662:
1.126 paf 663: static void _normalize(Request& r, MethodParams&) {
664: const String& src=GET_SELF(r, VString).string();
665:
666: r.write_assign_lang(src);
1.109 paf 667: }
668:
1.133 paf 669: static void _trim(Request& r, MethodParams& params) {
670: const String& src=GET_SELF(r, VString).string();
671:
672: String::Trim_kind kind=String::TRIM_BOTH;
1.176 misha 673: size_t params_count=params.count();
1.133 paf 674: const char* chars=0;
1.176 misha 675: if(params_count>0) {
676: const String& skind=params.as_string(0, "'where' must be string");
1.214 moko 677: if(!skind.is_empty()) {
1.162 misha 678: if(skind==TRIM_BOTH_OPTION)
679: kind=String::TRIM_BOTH;
680: else if(skind==TRIM_START_OPTION || skind=="start")
1.137 paf 681: kind=String::TRIM_START;
1.162 misha 682: else if(skind==TRIM_END_OPTION || skind=="end")
1.137 paf 683: kind=String::TRIM_END;
1.218 moko 684: else if(params_count==1)
685: chars=skind.cstr();
1.137 paf 686: else
1.153 misha 687: throw Exception(PARSER_RUNTIME,
1.137 paf 688: &skind,
1.213 moko 689: "'kind' must be one of " TRIM_START_OPTION ", " TRIM_BOTH_OPTION ", " TRIM_END_OPTION);
1.214 moko 690: }
1.133 paf 691:
1.176 misha 692: if(params_count>1) {
1.136 paf 693: const String& schars=params.as_string(1, "'chars' must be string");
1.178 misha 694: if(!schars.is_empty())
1.137 paf 695: chars=schars.cstr();
1.136 paf 696: }
1.133 paf 697: }
698:
1.182 misha 699: r.write_assign_lang(src.trim(kind, chars, &r.charsets.source()));
1.133 paf 700: }
701:
1.146 paf 702: static void _base64(Request& r, MethodParams& params) {
1.219 moko 703: if(&r.get_self() == string_class) {
1.202 misha 704: // decode: ^string:base64[encoded[;$.strict(true|false)]]
1.219 moko 705: const char* cstr=params.count() ? params.as_string(0, PARAMETER_MUST_BE_STRING).cstr() : "";
1.169 misha 706: char* decoded=0;
707: size_t length=0;
1.202 misha 708:
709: bool strict=false;
710: if(params.count() > 1)
711: if(HashStringValue* options=params.as_hash(1)) {
712: int valid_options=0;
713: if(Value* vstrict=options->get(BASE64_STRICT_OPTION_NAME)) {
714: strict=r.process_to_value(*vstrict).as_bool();
715: valid_options++;
716: }
717: if(valid_options!=options->count())
718: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
719: }
720:
721: pa_base64_decode(cstr, strlen(cstr), decoded, length, strict);
1.169 misha 722: if(decoded && length){
723: if(memchr((const char*)decoded, 0, length))
724: throw Exception(PARSER_RUNTIME,
725: 0,
726: "Invalid \\x00 character found while decode to string. Decode it to file instead.");
727:
728: fix_line_breaks(decoded, length);
1.179 misha 729: if(length)
1.180 misha 730: r.write_assign_lang(*new String(decoded, String::L_TAINTED));
1.169 misha 731: }
1.147 paf 732: } else {
1.169 misha 733: // encode: ^str.base64[]
1.148 paf 734: VString& self=GET_SELF(r, VString);
735: const char* cstr=self.string().cstr();
1.147 paf 736: const char* encoded=pa_base64_encode(cstr, strlen(cstr));
1.180 misha 737: r.write_assign_lang(*new String(encoded, String::L_TAINTED/*once ?param=base64(something) was needed*/));
1.146 paf 738: }
739: }
740:
1.215 moko 741: static void _idna(Request& r, MethodParams& params) {
1.219 moko 742: if(&r.get_self() == string_class) {
1.215 moko 743: // decode: ^string:idna[encoded]
1.219 moko 744: const char* cstr=params.count() ? params.as_string(0, PARAMETER_MUST_BE_STRING).cstr() : "";
1.215 moko 745: r.write_assign_lang(*new String(pa_idna_decode(cstr, r.charsets.source()), String::L_TAINTED));
746: } else {
747: // encode: ^str.idna[]
748: VString& self=GET_SELF(r, VString);
749: const char* cstr=self.string().cstr();
750: r.write_assign_lang(*new String(pa_idna_encode(cstr, r.charsets.source()), String::L_TAINTED));
751: }
752: }
753:
1.220 moko 754: static void _js_escape(Request& r, MethodParams&){
1.167 misha 755: const String& src=GET_SELF(r, VString).string();
756: r.write_assign_lang(src.escape(r.charsets.source()));
757: }
758:
1.220 moko 759: static void _js_unescape(Request& r, MethodParams& params){
1.167 misha 760: const String& src=params.as_string(0, PARAMETER_MUST_BE_STRING);
1.193 misha 761: if(const char* result=unescape_chars(src.cstr(), src.length(), &r.charsets.source(), true))
1.212 moko 762: r.write_assign_lang(*new String(result, String::L_TAINTED));
1.167 misha 763: }
764:
1.220 moko 765: static void _unescape(Request& r, MethodParams& params){
766: const String& mode=params.as_string(0, MODE_MUST_NOT_BE_CODE);
767: const String& src=params.as_string(1, PARAMETER_MUST_BE_STRING);
768:
769: Charset* from_charset=&r.charsets.client();
770:
771: if(params.count() > 2)
772: if(HashStringValue* options=params.as_hash(2)) {
773: int valid_options=0;
774: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)){
775: from_charset=&::charsets.get(vcharset_name->as_string().change_case(r.charsets.source(), String::CC_UPPER));
776: valid_options++;
777: }
778: if(valid_options!=options->count())
779: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
780: }
781:
782: bool mode_js;
783: if(mode==UNESCAPE_MODE_JS){
784: mode_js=true;
785: } else if(mode==UNESCAPE_MODE_URI){
786: mode_js=false;
787: } else {
788: throw Exception(PARSER_RUNTIME, &mode, "is invalid mode, must be either '"UNESCAPE_MODE_JS"' or '"UNESCAPE_MODE_URI"'");
789: }
790:
791: const char* unescaped=unescape_chars(src.cstr(), src.length(), from_charset, mode_js);
792: if(*unescaped){
1.221 moko 793: const String* result=new String(Charset::transcode(unescaped, *from_charset, r.charsets.source()), String::L_TAINTED);
1.220 moko 794: r.write_assign_lang(*result);
795: }
796: }
797:
1.41 paf 798: // constructor
799:
1.126 paf 800: MString::MString(): Methoded("string") {
1.1 paf 801: // ^string.length[]
1.41 paf 802: add_native_method("length", Method::CT_DYNAMIC, _length, 0, 0);
1.6 paf 803:
1.1 paf 804: // ^string.int[]
1.72 parser 805: // ^string.int(default)
806: add_native_method("int", Method::CT_DYNAMIC, _int, 0, 1);
1.1 paf 807: // ^string.double[]
1.72 parser 808: // ^string.double(default)
809: add_native_method("double", Method::CT_DYNAMIC, _double, 0, 1);
1.151 misha 810: // ^void.bool[]
811: // ^void.bool(default)
812: add_native_method("bool", Method::CT_DYNAMIC, _bool, 0, 1);
1.9 paf 813:
1.165 misha 814: // ^string.format[format]
1.41 paf 815: add_native_method("format", Method::CT_DYNAMIC, _string_format, 1, 1);
1.14 paf 816:
1.15 paf 817: // ^string.left(n)
1.41 paf 818: add_native_method("left", Method::CT_DYNAMIC, _left, 1, 1);
1.15 paf 819: // ^string.right(n)
1.41 paf 820: add_native_method("right", Method::CT_DYNAMIC, _right, 1, 1);
1.165 misha 821: // ^string.mid(p)
1.15 paf 822: // ^string.mid(p;n)
1.82 parser 823: add_native_method("mid", Method::CT_DYNAMIC, _mid, 1, 2);
1.16 paf 824:
825: // ^string.pos[substr]
1.165 misha 826: // ^string.pos[substr](n)
827: add_native_method("pos", Method::CT_DYNAMIC, _pos, 1, 2);
1.17 paf 828:
1.118 paf 829: // ^string.split[delim]
830: // ^string.split[delim][options]
1.156 misha 831: // ^string.split[delim][options][column name]
832: add_native_method("split", Method::CT_DYNAMIC, _split, 1, 3);
1.118 paf 833: // old names for backward compatibility
834: // ^string.lsplit[delim]
835: add_native_method("lsplit", Method::CT_DYNAMIC, _lsplit, 1, 1);
836: // ^string.rsplit[delim]
837: add_native_method("rsplit", Method::CT_DYNAMIC, _rsplit, 1, 1);
838:
1.32 paf 839: // ^string.match[regexp][options]
840: // ^string.match[regexp][options]{replacement-code}
1.192 misha 841: // ^string.match[regexp][options]{replacement-code}{code-if-nothing-is-found}
842: add_native_method("match", Method::CT_DYNAMIC, _match, 1, 4);
1.49 parser 843:
1.165 misha 844: // ^string.upper[]
1.49 parser 845: add_native_method("upper", Method::CT_DYNAMIC, _upper, 0, 0);
1.165 misha 846: // ^string.lower[]
1.49 parser 847: add_native_method("lower", Method::CT_DYNAMIC, _lower, 0, 0);
1.53 parser 848:
1.189 misha 849: // ^string:sql{query}
850: // ^string:sql{query}[options hash]
1.67 parser 851: add_native_method("sql", Method::CT_STATIC, _sql, 1, 2);
1.71 parser 852:
853: // ^string.replace[table]
1.201 misha 854: add_native_method("replace", Method::CT_DYNAMIC, _replace, 1, 2);
1.79 parser 855:
1.189 misha 856: // ^string.save[append][file]
857: // ^string.save[file]
858: // ^string.save[file][$.append(true) $.charset[...]]
1.87 paf 859: add_native_method("save", Method::CT_DYNAMIC, _save, 1, 2);
1.109 paf 860:
1.112 paf 861: // ^string.normalize[]
862: add_native_method("normalize", Method::CT_DYNAMIC, _normalize, 0, 0);
1.133 paf 863:
864: // ^string.trim[[start|both|end][;chars]]
865: add_native_method("trim", Method::CT_DYNAMIC, _trim, 0, 2);
1.139 paf 866:
1.146 paf 867: // ^string.base64[] << encode
1.215 moko 868: // ^string:base64[encoded string] << decode
1.202 misha 869: add_native_method("base64", Method::CT_ANY, _base64, 0, 2);
1.167 misha 870:
1.215 moko 871: // ^string.idna[] << encode
872: // ^string:idna[encoded string] << decode
873: add_native_method("idna", Method::CT_ANY, _idna, 0, 1);
874:
1.168 misha 875: // ^string.js-escape[]
1.220 moko 876: add_native_method("js-escape", Method::CT_DYNAMIC, _js_escape, 0, 0);
1.189 misha 877:
1.168 misha 878: // ^string:js-unescape[escaped%uXXXXstring]
1.220 moko 879: add_native_method("js-unescape", Method::CT_STATIC, _js_unescape, 1, 1);
880:
881: // ^string:unescape[js|uri;escaped;$.charset[...]]
882: add_native_method("unescape", Method::CT_STATIC, _unescape, 2, 3);
883: }
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