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| version 1.73, 2009/05/13 07:35:41 | version 1.96, 2014/08/28 17:09:36 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: Charset connection implementation. | Parser: Charset connection implementation. |
| Copyright(c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001-2012 Art. Lebedev Studio (http://www.artlebedev.com) |
| Author: Alexander Petrosyan<paf@design.ru>(http://paf.design.ru) | Author: Alexander Petrosyan<paf@design.ru>(http://paf.design.ru) |
| */ | */ |
| static const char * const IDENT_CHARSET_C="$Date$"; | |
| #include "pa_charset.h" | #include "pa_charset.h" |
| #include "pa_charsets.h" | #include "pa_charsets.h" |
| // we are using some pcre_internal.h stuff as well | |
| #include "../lib/pcre/pa_pcre_internal.h" | |
| volatile const char * IDENT_PA_CHARSET_C="$Id$" IDENT_PA_CHARSET_H; | |
| #ifdef XML | #ifdef XML |
| #include "libxml/encoding.h" | #include "libxml/encoding.h" |
| #endif | #endif |
| Line 58 inline unsigned int to_wchar_code(const | Line 61 inline unsigned int to_wchar_code(const |
| if(cstr[1]==0) | if(cstr[1]==0) |
| return(unsigned int)(unsigned char)cstr[0]; | return(unsigned int)(unsigned char)cstr[0]; |
| char *error_pos; | return pa_atoui(cstr,0); |
| return(unsigned int)strtol(cstr, &error_pos, 0); | |
| } | } |
| inline bool to_bool(const char* cstr) { | inline bool to_bool(const char* cstr) { |
| return cstr && *cstr!=0; | return cstr && *cstr!=0; |
| Line 86 static void element2case(unsigned char f | Line 88 static void element2case(unsigned char f |
| fcc_table[from]=to; fcc_table[to]=from; | fcc_table[from]=to; fcc_table[to]=from; |
| } | } |
| inline XMLByte *append_hex_8(XMLByte *dest, unsigned char c, const char* prefix=0) { | |
| if(prefix) { | |
| strcpy((char *)dest, prefix); | |
| dest+=strlen(prefix); | |
| } | |
| *dest++=hex_digits[c >> 4]; | |
| *dest++=hex_digits[c & 0x0F]; | |
| return dest; | |
| } | |
| inline XMLByte *append_hex_16(XMLByte *dest, unsigned int c, const char* prefix=0) { | |
| if(prefix) { | |
| strcpy((char *)dest, prefix); | |
| dest+=strlen(prefix); | |
| } | |
| *dest++=hex_digits[(c >> 12) & 0x0F]; | |
| *dest++=hex_digits[(c >> 8) & 0x0F]; | |
| *dest++=hex_digits[(c >> 4) & 0x0F]; | |
| *dest++=hex_digits[(c) & 0x0F]; | |
| return dest; | |
| } | |
| // methods | // methods |
| Charset::Charset(Request_charsets* charsets, const String::Body ANAME, const String* afile_spec): | Charset::Charset(Request_charsets* charsets, const String::Body ANAME, const String* afile_spec): |
| Line 101 Charset::Charset(Request_charsets* chars | Line 125 Charset::Charset(Request_charsets* chars |
| } else { | } else { |
| fisUTF8=true; | fisUTF8=true; |
| // grab default onces [for UTF-8 so to be able to make a-z =>A-Z | // grab default onces [for UTF-8 so to be able to make a-z =>A-Z |
| memcpy(pcre_tables, _pcre_default_tables, sizeof(pcre_tables)); | memcpy(pcre_tables, pa_pcre_default_tables, sizeof(pcre_tables)); |
| } | } |
| #ifdef XML | #ifdef XML |
| Line 171 void Charset::load_definition(Request_ch | Line 195 void Charset::load_definition(Request_ch |
| } | } |
| }; | }; |
| // parser charset tables declare only white-space before 0x20, thus adding the missing chars | |
| for(uint i=0; i<0x20; i++) | |
| if(!tables.fromTable[i]){ | |
| tables.fromTable[i]=i; | |
| tables.toTable[tables.toTableSize].intCh=i; | |
| tables.toTable[tables.toTableSize].extCh=(XMLByte)i; | |
| tables.toTableSize++; | |
| } | |
| // sort by the Unicode code point | // sort by the Unicode code point |
| sort_ToTable(); | sort_ToTable(); |
| } | } |
| Line 182 static int sort_cmp_Trans_rec_intCh(cons | Line 215 static int sort_cmp_Trans_rec_intCh(cons |
| } | } |
| void Charset::sort_ToTable() { | void Charset::sort_ToTable() { |
| _qsort(tables.toTable, tables.toTableSize, sizeof(*tables.toTable), | qsort(tables.toTable, tables.toTableSize, sizeof(*tables.toTable), sort_cmp_Trans_rec_intCh); |
| sort_cmp_Trans_rec_intCh); | |
| //FILE *f=fopen("c:\\temp\\a", "wb"); | //FILE *f=fopen("c:\\temp\\a", "wb"); |
| //fwrite(tables.toTable, tables.toTableSize, sizeof(*tables.toTable), f); | //fwrite(tables.toTable, tables.toTableSize, sizeof(*tables.toTable), f); |
| //fclose(f); | //fclose(f); |
| Line 193 void Charset::sort_ToTable() { | Line 225 void Charset::sort_ToTable() { |
| static XMLByte xlatOneTo(const XMLCh toXlat, | static XMLByte xlatOneTo(const XMLCh toXlat, |
| const Charset::Tables& tables, | const Charset::Tables& tables, |
| XMLByte not_found) { | XMLByte not_found) { |
| int lo = 0; | int lo = 0; |
| int hi = tables.toTableSize - 1; | int hi = tables.toTableSize - 1; |
| while(lo<=hi) { | while(lo<=hi) { |
| // Calc the mid point of the low and high offset. | // Calc the mid point of the low and high offset. |
| const unsigned int i = (lo + hi) / 2; | const unsigned int i = (lo + hi) / 2; |
| Line 263 static const XMLByte gUTFBytes[0x100] = | Line 295 static const XMLByte gUTFBytes[0x100] = |
| }; | }; |
| static const uint gUTFOffsets[6] = { | static const uint gUTFOffsets[6] = { |
| 0, 0x3080, 0xE2080, 0x3C82080, 0xFA082080, 0x82082080 | 0, 0x3080, 0xE2080, 0x3C82080, 0xFA082080, 0x82082080 |
| }; | }; |
| static const XMLByte gFirstByteMark[7] = { | static const XMLByte gFirstByteMark[7] = { |
| 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC | 0x00, 0x00, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC |
| }; | }; |
| static int transcodeToUTF8(const XMLByte* srcData, int& srcLen, | static int transcodeToUTF8(const XMLByte* srcData, int& srcLen, |
| Line 433 of ocetes consumed. | Line 465 of ocetes consumed. |
| return 0; | return 0; |
| } | } |
| static bool isEscaped(XMLByte c){ | static bool need_escape(XMLByte c){ |
| return | return |
| !( | !( |
| (c<=127) | (c<=127) |
| && ( | && ( |
| ((c>='0') && (c<='9')) | pa_isalnum((unsigned char)c) |
| || ((c>='A') && (c<='Z')) | |
| || ((c>='a') && (c<='z')) | |
| || strchr("*@-_+./", c)!=0 | || strchr("*@-_+./", c)!=0 |
| ) | ) |
| ); | ); |
| Line 492 static unsigned int skipUTF8Char(const X | Line 522 static unsigned int skipUTF8Char(const X |
| return trailingBytes; | return trailingBytes; |
| } | } |
| // read non-UTF8 char, and return number of bytes needed for store this char in UTF8 | // read non-UTF8 char, and return number of bytes needed for storing this char in UTF8 |
| static unsigned int readChar(const XMLByte*& srcPtr, const XMLByte* srcEnd, XMLByte& firstByte, XMLCh& UTF8Char, const Charset::Tables& tables){ | static unsigned int readChar(const XMLByte*& srcPtr, const XMLByte* srcEnd, XMLByte& firstByte, XMLCh& UTF8Char, const Charset::Tables& tables){ |
| if(!srcPtr || !*srcPtr || srcPtr>=srcEnd) | if(!srcPtr || !*srcPtr || srcPtr>=srcEnd) |
| return 0; | return 0; |
| Line 518 static unsigned int readChar(const XMLBy | Line 548 static unsigned int readChar(const XMLBy |
| return 1; | return 1; |
| } | } |
| static int escapeUTF8(const XMLByte* srcData, size_t& srcLen, | size_t Charset::calc_escaped_length_UTF8(XMLByte* src, size_t src_length){ |
| XMLByte* toFill, size_t& toFillLen) { | size_t dest_length=0; |
| const XMLByte* srcPtr=srcData; | |
| const XMLByte* srcEnd=srcData+srcLen; | for(UTF8_string_iterator i(src, src_length); i.has_next(); ){ |
| XMLByte* outPtr=toFill; | if(i.getCharSize()==1) |
| XMLByte* outEnd=toFill+toFillLen; | dest_length+=!need_escape(i.getFirstByte())?1/*as-is*/:3/*%XX*/; |
| XMLByte firstByte; | else |
| XMLCh UTF8Char; | dest_length+=6; // %uXXXX |
| uint charSize; | |
| // loop until we either run out of input data, or room to store | |
| while((outPtr < outEnd) && (charSize=readUTF8Char(srcPtr, srcEnd, firstByte, UTF8Char))){ | |
| if(charSize==1){ | |
| if(isEscaped(firstByte)) // %XX | |
| outPtr+=sprintf((char*)outPtr, "%%%02X", firstByte); | |
| else | |
| *outPtr++=firstByte; | |
| } else | |
| outPtr+=sprintf((char*)outPtr, "%%u%04X", UTF8Char); // %uXXXX | |
| } | } |
| // Update the bytes eaten | |
| srcLen=srcPtr-srcData; | |
| // Return the characters read | |
| toFillLen=outPtr-toFill; | |
| return 0; | return dest_length; |
| } | } |
| static int escape(const XMLByte* srcData, size_t& srcLen, | size_t Charset::calc_escaped_length(const XMLByte* src, size_t src_length, const Charset::Tables& tables){ |
| XMLByte *toFill, size_t& toFillLen, | const XMLByte* src_end=src+src_length; |
| const Charset::Tables& tables) { | XMLByte first_byte; |
| const XMLByte* srcPtr=srcData; | XMLCh UTF8_char; |
| const XMLByte* srcEnd=srcData+srcLen; | size_t dest_length=0; |
| XMLByte* outPtr=toFill; | |
| XMLByte firstByte; | while(uint char_size=readChar(src, src_end, first_byte, UTF8_char, tables)){ |
| XMLCh UTF8Char; | if(char_size==1) |
| uint charSize; | dest_length+=(!first_byte/*replacement char '?'*/ || !need_escape(first_byte))?1:3/*'%XX'*/; |
| else | |
| while(charSize=readChar(srcPtr, srcEnd, firstByte, UTF8Char, tables)){ | dest_length+=6; // %uXXXX |
| if(charSize==1){ | |
| if(firstByte){ | |
| if(isEscaped(firstByte)) // %XX | |
| outPtr+=sprintf((char*)outPtr, "%%%02X", firstByte); | |
| else | |
| *outPtr++=firstByte; | |
| } else // add replacement char '?' | |
| *outPtr++='?'; | |
| } else | |
| outPtr+=sprintf((char*)outPtr, "%%u%04X", UTF8Char); // %uXXXX | |
| } | } |
| // Update the bytes eaten | return dest_length; |
| srcLen = srcPtr - srcData; | } |
| // Return the characters read | size_t Charset::calc_escaped_length(const String::C src, const Charset& source_charset){ |
| toFillLen = outPtr - toFill; | if(!src.length) |
| return 0; | |
| #ifdef PRECALCULATE_DEST_LENGTH | |
| if(source_charset.isUTF8()) | |
| return calc_escaped_length_UTF8((XMLByte *)src.str, src.length); | |
| else | |
| return calc_escaped_length((XMLByte *)src.str, src.length, source_charset.tables); | |
| #else | |
| return src_length*6; // enough for %uXXXX but too memory-hungry | |
| #endif | |
| } | |
| #define escape_char(dest_ptr, char_size, first_byte, UTF8_char) \ | |
| if(char_size==1) \ | |
| if(first_byte){ \ | |
| if(need_escape(first_byte)) \ | |
| dest_ptr=append_hex_8(dest_ptr, first_byte, "%"); /* %XX */ \ | |
| else \ | |
| *dest_ptr++=first_byte; /*as is*/ \ | |
| } else \ | |
| *dest_ptr++='?'; /* replacement char '?' */ \ | |
| else \ | |
| dest_ptr=append_hex_16(dest_ptr, UTF8_char, "%u"); /* %uXXXX */ | |
| size_t Charset::escape_UTF8(const XMLByte* src, size_t src_length, XMLByte* dest) { | |
| XMLByte* dest_ptr=dest; | |
| // loop until we either run out of input data | |
| for(UTF8_string_iterator i((XMLByte *)src, src_length); i.has_next(); ) | |
| escape_char(dest_ptr, i.getCharSize(), i.getFirstByte(), i.next()) | |
| return 0; | return dest_ptr - dest; |
| } | } |
| size_t Charset::escape(const XMLByte* src, size_t src_length, XMLByte* dest, const Charset::Tables& tables) { | |
| const XMLByte* src_end=src+src_length; | |
| XMLByte* dest_ptr=dest; | |
| XMLByte first_byte; | |
| XMLCh UTF8_char; | |
| uint char_size; | |
| while(char_size=readChar(src, src_end, first_byte, UTF8_char, tables)) | |
| escape_char(dest_ptr, char_size, first_byte, UTF8_char) | |
| return dest_ptr - dest; | |
| } | |
| String::C Charset::escape(const String::C src, const Charset& source_charset){ | String::C Charset::escape(const String::C src, const Charset& source_charset){ |
| size_t src_length=src.length; | if(!src.length) |
| if(!src_length) | |
| return String::C("", 0); | return String::C("", 0); |
| #ifdef PRECALCULATE_DEST_LENGTH | size_t dest_calculated_length=calc_escaped_length(src, source_charset); |
| XMLByte *dest_body=new(PointerFreeGC) XMLByte[dest_calculated_length+1/*terminator*/]; | |
| size_t dest_length; | |
| if(source_charset.isUTF8()) | |
| dest_length=escape_UTF8((XMLByte *)src.str, src.length, dest_body); | |
| else | |
| dest_length=escape((XMLByte *)src.str, src.length, dest_body, source_charset.tables); | |
| if(dest_length>dest_calculated_length) | |
| throw Exception(0, 0, "Charset::escape buffer overflow"); | |
| dest_body[dest_length]=0; // terminator | |
| return String::C((char*)dest_body, dest_length); | |
| } | |
| String::Body Charset::escape(const String::Body src, const Charset& source_charset) { | |
| String::C dest=Charset::escape(String::C(src.cstr(), src.length()), source_charset); | |
| return String::Body(dest.length ? dest.str:0); | |
| } | |
| String& Charset::escape(const String& src, const Charset& source_charset) { | |
| if(src.is_empty()) | |
| return *new String(); | |
| return *new String(escape((String::Body)src, source_charset), String::L_CLEAN); | |
| } | |
| inline bool need_json_escape(unsigned char c){ | |
| return strchr("\n\"\\/\t\r\b\f", c)!=0; | |
| } | |
| size_t Charset::calc_JSON_escaped_length_UTF8(XMLByte* src, size_t src_length){ | |
| size_t dest_length=0; | size_t dest_length=0; |
| const XMLByte* srcPtr=(XMLByte*)src.str; | |
| const XMLByte* srcEnd=srcPtr+src_length; | |
| XMLByte firstByte; | |
| XMLCh UTF8Char; | |
| if(source_charset.isUTF8()){ | for(UTF8_string_iterator i(src, src_length); i.has_next(); ){ |
| while(uint charSize=readUTF8Char(srcPtr, srcEnd, firstByte, UTF8Char)){ | if(i.getCharSize()==1){ |
| if(charSize==1) | XMLByte first_byte=i.getFirstByte(); |
| dest_length+=!isEscaped(firstByte)?1:3/*%XX*/; | dest_length+=need_json_escape(first_byte) ? 2 : (first_byte < 0x20 && first_byte /* 0 replacement char is '?' */) ? 6 : 1; |
| else | } else |
| dest_length+=6; // '%uXXXX' | dest_length+=6; // \uXXXX |
| } | |
| } else { | |
| while(uint charSize=readChar(srcPtr, srcEnd, firstByte, UTF8Char, source_charset.tables)){ | |
| if(charSize==1) | |
| dest_length+=(!firstByte/*replacement char '?'*/ || !isEscaped(firstByte))?1:3/*'%XX'*/; | |
| else | |
| dest_length+=6; // '%uXXXX' | |
| } | |
| } | } |
| return dest_length; | |
| } | |
| size_t Charset::calc_JSON_escaped_length(const XMLByte* src, size_t src_length, const Charset::Tables& tables){ | |
| const XMLByte* src_end=src+src_length; | |
| XMLByte first_byte; | |
| XMLCh UTF8_char; | |
| size_t dest_length=0; | |
| while(uint char_size=readChar(src, src_end, first_byte, UTF8_char, tables)){ | |
| if(char_size==1) | |
| dest_length+=need_json_escape(first_byte) ? 2 : (first_byte < 0x20 && first_byte /* 0 replacement char is '?' */) ? 6 : 1; | |
| else | |
| dest_length+=6; // \uXXXX | |
| } | |
| return dest_length; | |
| } | |
| size_t Charset::calc_JSON_escaped_length(const String::C src, const Charset& source_charset){ | |
| if(!src.length) | |
| return 0; | |
| #ifdef PRECALCULATE_DEST_LENGTH | |
| if(source_charset.isUTF8()) | |
| return calc_JSON_escaped_length_UTF8((XMLByte *)src.str, src.length); | |
| else | |
| return calc_JSON_escaped_length((XMLByte *)src.str, src.length, source_charset.tables); | |
| #else | #else |
| size_t dest_length=src_length*6; // enough for %uXXXX but too memory-hungry | return src_length*6; // enough for \uXXXX but too memory-hungry |
| #endif | #endif |
| } | |
| //throw Exception(0,0,"%u",dest_length); | #define escape_char_JSON(dest_ptr, char_size, first_byte, UTF8_char) \ |
| if(char_size==1) \ | |
| switch(first_byte){ \ | |
| case '\n': *dest_ptr++='\\'; *dest_ptr++='n'; break; \ | |
| case '"' : *dest_ptr++='\\'; *dest_ptr++='"'; break; \ | |
| case '\\': *dest_ptr++='\\'; *dest_ptr++='\\'; break; \ | |
| case '/' : *dest_ptr++='\\'; *dest_ptr++='/'; break; \ | |
| case '\t': *dest_ptr++='\\'; *dest_ptr++='t'; break; \ | |
| case '\r': *dest_ptr++='\\'; *dest_ptr++='r'; break; \ | |
| case '\b': *dest_ptr++='\\'; *dest_ptr++='b'; break; \ | |
| case '\f': *dest_ptr++='\\'; *dest_ptr++='f'; break; \ | |
| case 0 : *dest_ptr++='?'; break; /*replacement char*/ \ | |
| default : if(first_byte < 0x20) dest_ptr=append_hex_16(dest_ptr, UTF8_char, "\\u"); \ | |
| else *dest_ptr++=first_byte; \ | |
| } \ | |
| else \ | |
| dest_ptr=append_hex_16(dest_ptr, UTF8_char, "\\u"); // \uXXXX | |
| size_t Charset::escape_JSON_UTF8(const XMLByte* src, size_t src_length, XMLByte* dest) { | |
| XMLByte* dest_ptr=dest; | |
| // loop until we either run out of input data | |
| for(UTF8_string_iterator i((XMLByte *)src, src_length); i.has_next(); ) | |
| escape_char_JSON(dest_ptr, i.getCharSize(), i.getFirstByte(), i.next()) | |
| return dest_ptr - dest; | |
| } | |
| size_t Charset::escape_JSON(const XMLByte* src, size_t src_length, XMLByte* dest, const Charset::Tables& tables) { | |
| const XMLByte* src_end=src+src_length; | |
| XMLByte* dest_ptr=dest; | |
| XMLByte first_byte; | |
| XMLCh UTF8_char; | |
| uint char_size; | |
| #ifndef NDEBUG | while(char_size=readChar(src, src_end, first_byte, UTF8_char, tables)) |
| size_t saved_dest_length=dest_length; | escape_char_JSON(dest_ptr, char_size, first_byte, UTF8_char) |
| #endif | |
| XMLByte *dest_body=new(PointerFreeGC) XMLByte[dest_length+1/*for terminator*/]; | |
| int status; | return dest_ptr - dest; |
| if(source_charset.isUTF8()){ | } |
| status=::escapeUTF8((XMLByte *)src.str, src_length, dest_body, dest_length); | |
| } else { | |
| status=::escape((XMLByte *)src.str, src_length, dest_body, dest_length, source_charset.tables); | |
| } | |
| if(status<0) | String::C Charset::escape_JSON(const String::C src, const Charset& source_charset){ |
| throw Exception(0, | if(!src.length) |
| 0, | return String::C("", 0); |
| "Charset::escape buffer overflow"); | |
| size_t dest_calculated_length=calc_JSON_escaped_length(src, source_charset); | |
| XMLByte *dest_body=new(PointerFreeGC) XMLByte[dest_calculated_length+1/*terminator*/]; | |
| size_t dest_length; | |
| if(source_charset.isUTF8()) | |
| dest_length=escape_JSON_UTF8((XMLByte *)src.str, src.length, dest_body); | |
| else | |
| dest_length=escape_JSON((XMLByte *)src.str, src.length, dest_body, source_charset.tables); | |
| if(dest_length>dest_calculated_length) | |
| throw Exception(0, 0, "Charset::escape_JSON buffer overflow"); | |
| assert(dest_length<=saved_dest_length); | |
| dest_body[dest_length]=0; // terminator | dest_body[dest_length]=0; // terminator |
| return String::C((char*)dest_body, dest_length); | return String::C((char*)dest_body, dest_length); |
| } | } |
| String::Body Charset::escape(const String::Body src, const Charset& source_charset) { | |
| const char *src_ptr=src.cstr(); | |
| size_t src_size=strlen(src_ptr); | |
| String::C dest=Charset::escape(String::C(src_ptr, src_size), source_charset); | |
| return String::Body(dest.str); | String::Body Charset::escape_JSON(const String::Body src, const Charset& source_charset) { |
| String::C dest=Charset::escape_JSON(String::C(src.cstr(), src.length()), source_charset); | |
| return String::Body(dest.length ? dest.str:0); | |
| } | } |
| String& Charset::escape(const String& src, const Charset& source_charset) { | String& Charset::escape_JSON(const String& src, const Charset& source_charset) { |
| if(src.is_empty()) | if(src.is_empty()) |
| return *new String(); | return *new String(); |
| return *new String(escape((String::Body)src, source_charset), String::L_CLEAN); | return *new String(escape_JSON((String::Body)src, source_charset), String::L_CLEAN); |
| } | } |
| const String::C Charset::transcodeToUTF8(const String::C src) const { | const String::C Charset::transcodeToUTF8(const String::C src) const { |
| Line 664 const String::C Charset::transcodeToUTF8 | Line 795 const String::C Charset::transcodeToUTF8 |
| while(uint charSize=readChar(srcPtr, srcEnd, firstByte, UTF8Char, tables)) | while(uint charSize=readChar(srcPtr, srcEnd, firstByte, UTF8Char, tables)) |
| dest_length+=charSize; | dest_length+=charSize; |
| #else | #else |
| int dest_length=src_length*6; // so that surly enough (max utf8 seq len=6) but too memory-hyngry | int dest_length=src_length*6; // so that surly enough (max utf8 seq len=6) but too memory-hungry |
| #endif | #endif |
| //throw Exception(0,0,"%u",dest_length); | |
| #ifndef NDEBUG | #ifndef NDEBUG |
| int saved_dest_length=dest_length; | int saved_dest_length=dest_length; |
| #endif | #endif |
| Line 688 const String::C Charset::transcodeToUTF8 | Line 817 const String::C Charset::transcodeToUTF8 |
| } | } |
| static XMLCh change_case_UTF8(const XMLCh src, const Charset::UTF8CaseTable& table) { | static XMLCh change_case_UTF8(const XMLCh src, const Charset::UTF8CaseTable& table) { |
| int lo = 0; | int lo = 0; |
| int hi = table.size - 1; | int hi = table.size - 1; |
| while(lo<=hi) { | while(lo<=hi) { |
| // Calc the mid point of the low and high offset. | // Calc the mid point of the low and high offset. |
| const unsigned int i = (lo + hi) / 2; | const unsigned int i = (lo + hi) / 2; |
| Line 829 static size_t getDecNumLength(XMLCh UTF8 | Line 958 static size_t getDecNumLength(XMLCh UTF8 |
| const String::C Charset::transcodeFromUTF8(const String::C src) const { | const String::C Charset::transcodeFromUTF8(const String::C src) const { |
| int src_length=src.length; | int src_length=src.length; |
| #ifdef PRECALCULATE_DEST_LENGTH | #ifdef PRECALCULATE_DEST_LENGTH |
| int dest_length=0; | int dest_length=0; |
| const XMLByte* srcPtr=(XMLByte*)src.str; | for(UTF8_string_iterator i((XMLByte *)src.str, src_length); i.has_next(); ){ |
| const XMLByte* srcEnd=srcPtr+src_length; | dest_length += ( i.next() & 0xFFFF0000 ) |
| XMLByte firstByte; | ? 3*i.getCharSize() // %XX for each byte |
| XMLCh UTF8Char; | : ( xlatOneTo(i.next(), tables, 0) != 0 ) |
| while(uint charSize=readUTF8Char(srcPtr, srcEnd, firstByte, UTF8Char)){ | ? 1 // can convert it to a single char |
| if(charSize==1) | : 3+getDecNumLength( i.next() ); // print char as &#XX;, &#XXX;, &#XXXX; or &#XXXXX; |
| dest_length++; | |
| else | |
| dest_length+=(UTF8Char & 0xFFFF0000) | |
| ?charSize*3 // '%XX' for each byte | |
| :(xlatOneTo(UTF8Char, tables, 0)!=0) | |
| ?1 // can convert it to single char | |
| :getDecNumLength(UTF8Char)+3; // &#XX; - &#XXXXX; | |
| } | } |
| #else | #else |
| // so that surly enough, "&#XXX;" has max ratio (huh? 8 bytes needed for '&#XXXXX;') | // so that surly enough, "&#XXX;" has max ratio (huh? 8 bytes needed for '&#XXXXX;') |
| Line 871 const String::C Charset::transcodeFromUT | Line 992 const String::C Charset::transcodeFromUT |
| /// transcode using both charsets | /// transcode using both charsets |
| const String::C Charset::transcodeToCharset(const String::C src, | const String::C Charset::transcodeToCharset(const String::C src, |
| const Charset& dest_charset) const { | const Charset& dest_charset) const { |
| if(&dest_charset==this) | if(&dest_charset==this) |
| return src; | return src; |
| else { | else { |
| Line 1035 String::C Charset::transcode_cstr(const | Line 1156 String::C Charset::transcode_cstr(const |
| } | } |
| const String& Charset::transcode(const xmlChar* s) { | const String& Charset::transcode(const xmlChar* s) { |
| String::C cstr=transcode_cstr(s); | String::C cstr=transcode_cstr(s); |
| return *new String(cstr.str, true); | return *new String(cstr.str, String::L_TAINTED); |
| } | } |
| /// @test less memory using -maybe- xmlParserInputBufferCreateMem | /// @test less memory using -maybe- xmlParserInputBufferCreateMem |
| Line 1077 xmlChar* Charset::transcode_buf2xchar(co | Line 1198 xmlChar* Charset::transcode_buf2xchar(co |
| assert(outlen<=saved_outlen); out[outlen]=0; | assert(outlen<=saved_outlen); out[outlen]=0; |
| return out; | return out; |
| } | } |
| xmlChar* Charset::transcode(const String& s) { | |
| const char* cstr=s.cstr(String::L_UNSPECIFIED); | |
| return transcode_buf2xchar(cstr, strlen(cstr)); | xmlChar* Charset::transcode(const String& s) { |
| String::Body sbody=s.cstr_to_string_body_untaint(String::L_AS_IS); | |
| return transcode_buf2xchar(sbody.cstr(), sbody.length()); | |
| } | } |
| xmlChar* Charset::transcode(const String::Body s) { | |
| const char* cstr=s.cstr(); | |
| return transcode_buf2xchar(cstr, s.length()); | xmlChar* Charset::transcode(const String::Body s) { |
| return transcode_buf2xchar(s.cstr(), s.length()); | |
| } | } |
| #endif | #endif |
| Line 1094 String::Body Charset::transcode(const St | Line 1214 String::Body Charset::transcode(const St |
| const Charset& dest_transcoder) { | const Charset& dest_transcoder) { |
| const char *src_ptr=src.cstr(); | const char *src_ptr=src.cstr(); |
| size_t src_size=strlen(src_ptr); | size_t src_size=src.length(); |
| String::C dest=Charset::transcode(String::C(src_ptr, src_size), | String::C dest=Charset::transcode(String::C(src_ptr, src_size), source_transcoder, dest_transcoder); |
| source_transcoder, | |
| dest_transcoder); | |
| return String::Body(dest.str); | return String::Body(dest.length ? dest.str:0); |
| } | } |
| String& Charset::transcode(const String& src, | String& Charset::transcode(const String& src, |
| Line 1125 struct Transcode_pair_info { | Line 1243 struct Transcode_pair_info { |
| const Charset* dest_transcoder; | const Charset* dest_transcoder; |
| }; | }; |
| #endif | #endif |
| static void transcode_pair(const String::Body /*akey*/, | static void transcode_pair(HashStringValue::key_type /*akey*/, |
| String::Body& avalue, | String::Body& avalue, |
| Transcode_pair_info* info) { | Transcode_pair_info* info) { |
| avalue=Charset::transcode(avalue, | avalue=Charset::transcode(avalue, |
| Line 1170 size_t lengthUTF8(const XMLByte* srcBegi | Line 1288 size_t lengthUTF8(const XMLByte* srcBegi |
| return size; | return size; |
| } | } |
| unsigned int lengthUTF8Char(const XMLByte c){ | |
| return gUTFBytes[c]+1; | |
| } | |
| const char *fixUTF8(const char *src){ | |
| if(src && *src){ | |
| size_t length=strlen(src); | |
| int error_offset; | |
| if(pa_pcre_valid_utf((unsigned char *)src, length, &error_offset)){ | |
| char *result=(char *)pa_malloc_atomic(length+1); | |
| char *dst=result; | |
| do { | |
| if(error_offset){ | |
| strncpy(dst, src, error_offset); | |
| dst+=error_offset; | |
| src+=error_offset; | |
| length-=error_offset; | |
| } | |
| *dst++='?'; | |
| src++; | |
| length--; | |
| } while (length && pa_pcre_valid_utf((unsigned char *)src, length, &error_offset)); | |
| if(length){ | |
| strcpy(dst, src); | |
| } else { | |
| *dst='\0'; | |
| } | |
| return result; | |
| } | |
| } | |
| return src; | |
| } | |
| bool UTF8_string_iterator::has_next(){ | |
| fcharSize=readUTF8Char(fsrcPtr, fsrcEnd, ffirstByte, fUTF8Char); | |
| return fcharSize!=0; | |
| } |