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| version 1.33.2.10, 2003/02/19 16:19:00 | version 1.34, 2003/03/21 09:43:48 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: Charset connection implementation. | Parser: Charset connection implementation. |
| Copyright(c) 2001-2003 ArtLebedev Group (http://www.artlebedev.com) | Copyright(c) 2001, 2003 ArtLebedev Group (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* IDENT_CHARSET_C="$Date$"; | static const char* IDENT_CHARSET_C="$Date$"; |
| #include "pa_charset.h" | #include "pa_charset.h" |
| #include "pa_array.h" | |
| #include "pa_hash.h" | |
| #ifdef XML | #ifdef XML |
| #include "libxml/encoding.h" | #include "libxml/encoding.h" |
| Line 15 static const char* IDENT_CHARSET_C="$Dat | Line 17 static const char* IDENT_CHARSET_C="$Dat |
| // globals | // globals |
| #define CHARSET_UTF8_NAME "UTF-8" | |
| CharsetPtr UTF8_charset(new Charset(StringPtr(new String(CHARSET_UTF8_NAME)), | // consts |
| StringPtr(0)/*no file=system*/)); | |
| #define MAX_CHARSET_UNI_CODES 500 | |
| // helpers | // helpers |
| Line 37 inline void cstr2ctypes(unsigned char *t | Line 39 inline void cstr2ctypes(unsigned char *t |
| ctypes_table[c]|=bit; | ctypes_table[c]|=bit; |
| } | } |
| } | } |
| inline unsigned int to_wchar_code(const char* cstr) { | inline unsigned int to_wchar_code(const char *cstr) { |
| if(!cstr || !*cstr) | if(!cstr || !*cstr) |
| return 0; | return 0; |
| if(cstr[1]==0) | if(cstr[1]==0) |
| Line 46 inline unsigned int to_wchar_code(const | Line 48 inline unsigned int to_wchar_code(const |
| char *error_pos; | char *error_pos; |
| return(unsigned int)strtol(cstr, &error_pos, 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; |
| } | } |
| static void element2ctypes(unsigned char c, bool belongs, | static void element2ctypes(unsigned char c, bool belongs, |
| Line 74 static void element2case(unsigned char f | Line 76 static void element2case(unsigned char f |
| // methods | // methods |
| extern "C" unsigned char pcre_default_tables[]; // pcre/chartables.c | extern "C" unsigned char pcre_default_tables[]; // pcre/chartables.c |
| Charset::Charset(StringPtr aname, StringPtr afile_spec): | Charset::Charset(Pool& apool, const String& aname, const String *request_file_spec): Pooled(apool), |
| fname(aname), | fname(aname) { |
| fname_cstr(aname->cstr()) { | |
| for(char *c=fname_cstr; *c; c++) | char *name_cstr=fname.cstr(); |
| for(char *c=name_cstr; *c; c++) | |
| *c = toupper(*c); | *c = toupper(*c); |
| if(afile_spec) { | if(request_file_spec) { |
| fisUTF8=false; | fisUTF8=false; |
| load_definition(afile_spec); | loadDefinition(*request_file_spec); |
| #ifdef XML | #ifdef XML |
| addEncoding(fname_cstr); | addEncoding(name_cstr); |
| #endif | #endif |
| } else { | } else { |
| fisUTF8=true; | fisUTF8=true; |
| Line 94 Charset::Charset(StringPtr aname, String | Line 96 Charset::Charset(StringPtr aname, String |
| } | } |
| #ifdef XML | #ifdef XML |
| initTranscoder(fname, fname_cstr); | initTranscoder(&aname, name_cstr); |
| #endif | #endif |
| } | } |
| Charset::~Charset() { | Charset::~Charset() { |
| // @todonow unregister encodings | |
| #ifdef XML | #ifdef XML |
| // not deleting transcoder, that's not our business | // not deleting transcoder, that's not our business |
| #endif | #endif |
| } | } |
| void Charset::load_definition(StringPtr afile_spec) { | void Charset::loadDefinition(const String& request_file_spec) { |
| // pcre_tables | // pcre_tables |
| // lowcase, flipcase, bits digit+word+whitespace, masks | // lowcase, flipcase, bits digit+word+whitespace, masks |
| Line 117 void Charset::load_definition(StringPtr | Line 118 void Charset::load_definition(StringPtr |
| // charset | // charset |
| memset(tables.fromTable, 0, sizeof(tables.fromTable)); | memset(tables.fromTable, 0, sizeof(tables.fromTable)); |
| memset(tables.toTable, 0, sizeof(tables.toTable)); | tables.toTable=(Charset_TransRec *)calloc(sizeof(Charset_TransRec)*MAX_CHARSET_UNI_CODES); |
| tables.toTableSize=0; | tables.toTableSize=0; |
| // strangly vital | // strangly vital |
| tables.toTable[tables.toTableSize].intCh=0; | tables.toTable[tables.toTableSize].intCh=0; |
| Line 125 void Charset::load_definition(StringPtr | Line 126 void Charset::load_definition(StringPtr |
| tables.toTableSize++; | tables.toTableSize++; |
| // loading text | // loading text |
| Pool pool_for_load_only; | char *data=file_read_text(pool(), request_file_spec); |
| char *data=file_read_text(pool_for_load_only, *UTF8_charset, afile_spec); | |
| // ignore header | // ignore header |
| getrow(&data); | getrow(&data); |
| Line 156 void Charset::load_definition(StringPtr | Line 156 void Charset::load_definition(StringPtr |
| // charset | // charset |
| if(tables.toTableSize>MAX_CHARSET_UNI_CODES) | if(tables.toTableSize>MAX_CHARSET_UNI_CODES) |
| throw Exception("parser.runtime", | throw Exception("parser.runtime", |
| afile_spec, | &request_file_spec, |
| "charset must contain not more then %d unicode values", MAX_CHARSET_UNI_CODES); | "charset must contain not more then %d unicode values", MAX_CHARSET_UNI_CODES); |
| XMLCh unicode=(XMLCh)to_wchar_code(cell); | XMLCh unicode=(XMLCh)to_wchar_code(cell); |
| Line 417 static int transcodeFromUTF8( | Line 417 static int transcodeFromUTF8( |
| default: | default: |
| throw Exception(0, | throw Exception(0, |
| Exception::undefined_source, | 0, |
| "transcodeFromUTF8 error: wrong trailingBytes value(%d)", trailingBytes); | "transcodeFromUTF8 error: wrong trailingBytes value(%d)", trailingBytes); |
| } | } |
| tmpVal-=gUTFOffsets[trailingBytes]; | tmpVal-=gUTFOffsets[trailingBytes]; |
| Line 432 static int transcodeFromUTF8( | Line 432 static int transcodeFromUTF8( |
| outPtr+=sprintf((char *)outPtr, "&#%d;", tmpVal); // &#decimal; | outPtr+=sprintf((char *)outPtr, "&#%d;", tmpVal); // &#decimal; |
| } else | } else |
| throw Exception(0, | throw Exception(0, |
| Exception::undefined_source, | 0, |
| "transcodeFromUTF8 error: too big tmpVal(0x%08X)", tmpVal); | "transcodeFromUTF8 error: too big tmpVal(0x%08X)", tmpVal); |
| } | } |
| Line 458 void Charset::transcodeToUTF8(Pool& pool | Line 458 void Charset::transcodeToUTF8(Pool& pool |
| const void *source_body, size_t source_content_length, | const void *source_body, size_t source_content_length, |
| const void *& adest_body, size_t& dest_content_length) const { | const void *& adest_body, size_t& dest_content_length) const { |
| dest_content_length=source_content_length*6/*so that surly enough, max utf8 seq len=6*/; | dest_content_length=source_content_length*6/*so that surly enough, max utf8 seq len=6*/; |
| XMLByte *dest_body=new(pool) XMLByte[dest_content_length]; | XMLByte *dest_body=(XMLByte*)pool.malloc(dest_content_length); |
| if(::transcodeToUTF8( | if(::transcodeToUTF8( |
| (XMLByte *)source_body, source_content_length, | (XMLByte *)source_body, source_content_length, |
| Line 475 void Charset::transcodeFromUTF8(Pool& po | Line 475 void Charset::transcodeFromUTF8(Pool& po |
| const void *source_body, size_t source_content_length, | const void *source_body, size_t source_content_length, |
| const void *& adest_body, size_t& dest_content_length) const { | const void *& adest_body, size_t& dest_content_length) const { |
| dest_content_length=source_content_length*6/*so that surly enough, "ÿ" has max ratio */; | dest_content_length=source_content_length*6/*so that surly enough, "ÿ" has max ratio */; |
| XMLByte *dest_body=new(pool) XMLByte[dest_content_length]; | XMLByte *dest_body=(XMLByte*)pool.malloc(dest_content_length); |
| if(::transcodeFromUTF8( | if(::transcodeFromUTF8( |
| (XMLByte *)source_body, source_content_length, | (XMLByte *)source_body, source_content_length, |
| Line 499 void Charset::transcodeToCharset(Pool& p | Line 499 void Charset::transcodeToCharset(Pool& p |
| adest_content_length=source_content_length; | adest_content_length=source_content_length; |
| } else { | } else { |
| size_t dest_content_length=source_content_length; | size_t dest_content_length=source_content_length; |
| unsigned char *dest_body=new(pool) unsigned char[dest_content_length]; | unsigned char *dest_body=(unsigned char *)pool.malloc(dest_content_length); |
| const XMLByte* srcPtr=(XMLByte *)source_body; | const XMLByte* srcPtr=(XMLByte *)source_body; |
| const XMLByte* srcEnd=(XMLByte *)source_body+source_content_length; | const XMLByte* srcEnd=(XMLByte *)source_body+source_content_length; |
| Line 547 static int xml256CharEncodingOut | Line 547 static int xml256CharEncodingOut |
| void Charset::addEncoding(char *name_cstr) { | void Charset::addEncoding(char *name_cstr) { |
| xmlCharEncodingHandler *handler= | xmlCharEncodingHandler *handler= |
| (xmlCharEncodingHandler *)[ADD to local array of autoptrs to autofree]new ...(sizeof(xmlCharEncodingHandler)); | (xmlCharEncodingHandler *)malloc(sizeof(xmlCharEncodingHandler)); |
| handler->name=name_cstr; | handler->name=name_cstr; |
| handler->input=xml256CharEncodingInputFunc; handler->inputInfo=&tables; | handler->input=xml256CharEncodingInputFunc; handler->inputInfo=&tables; |
| handler->output=xml256CharEncodingOutputFunc; handler->outputInfo=&tables; | handler->output=xml256CharEncodingOutputFunc; handler->outputInfo=&tables; |
| Line 555 void Charset::addEncoding(char *name_cst | Line 555 void Charset::addEncoding(char *name_cst |
| xmlRegisterCharEncodingHandler(handler); | xmlRegisterCharEncodingHandler(handler); |
| } | } |
| void Charset::initTranscoder(const String *source, const char* name_cstr) { | void Charset::initTranscoder(const String *source, const char *name_cstr) { |
| ftranscoder=xmlFindCharEncodingHandler(name_cstr); | ftranscoder=xmlFindCharEncodingHandler(name_cstr); |
| transcoder(source); // check right way | transcoder(source); // check right way |
| } | } |
| Line 568 xmlCharEncodingHandler *Charset::transco | Line 568 xmlCharEncodingHandler *Charset::transco |
| return ftranscoder; | return ftranscoder; |
| } | } |
| CharPtr Charset::transcode_cstr(xmlChar *s) { | const char *Charset::transcode_cstr(xmlChar *s) { |
| if(!s) | if(!s) |
| return ""; | return ""; |
| int inlen=strlen((const char* )s); | int inlen=strlen((const char *)s); |
| int outlen=inlen+1; // max | int outlen=inlen+1; // max |
| char *out=new char[outlen]; | char *out=(char *)malloc(outlen*sizeof(char)); |
| int error; | int error; |
| if(xmlCharEncodingOutputFunc output=transcoder(0)->output) { | if(xmlCharEncodingOutputFunc output=transcoder(0)->output) { |
| Line 603 String& Charset::transcode(xmlChar *s | Line 603 String& Charset::transcode(xmlChar *s |
| result.APPEND_CLEAN(transcode_cstr(s), 0/*auto-size*/, origin->origin().file, origin->origin().line); | result.APPEND_CLEAN(transcode_cstr(s), 0/*auto-size*/, origin->origin().file, origin->origin().line); |
| return result; | return result; |
| } | } |
| const char* Charset::transcode_cstr(GdomeDOMString *s) { | const char *Charset::transcode_cstr(GdomeDOMString *s) { |
| return s?transcode_cstr(BAD_CAST s->str):""; | return s?transcode_cstr(BAD_CAST s->str):""; |
| } | } |
| String& Charset::transcode(GdomeDOMString *s | String& Charset::transcode(GdomeDOMString *s |
| Line 617 String& Charset::transcode(GdomeDOMStrin | Line 617 String& Charset::transcode(GdomeDOMStrin |
| } | } |
| /// @test less memory using -maybe- xmlParserInputBufferCreateMem | /// @test less memory using -maybe- xmlParserInputBufferCreateMem |
| xmlChar *Charset::transcode_buf2xchar(Pool& pool, const char* buf, size_t buf_size) { | xmlChar *Charset::transcode_buf2xchar(const char *buf, size_t buf_size) { |
| unsigned char *out; | unsigned char *out; |
| int outlen; | int outlen; |
| int error; | int error; |
| if(xmlCharEncodingInputFunc input=transcoder(0)->input) { | if(xmlCharEncodingInputFunc input=transcoder(0)->input) { |
| outlen=buf_size*6/*max*/; | outlen=buf_size*6/*max*/; |
| out=new(pool) unsigned char[outlen+1]; | out=(unsigned char*)malloc((outlen+1)*sizeof(unsigned char)); |
| error=input( | error=input( |
| out, &outlen, | out, &outlen, |
| (const unsigned char *)buf, (int *)&buf_size, | (const unsigned char *)buf, (int *)&buf_size, |
| transcoder(0)->inputInfo); | transcoder(0)->inputInfo); |
| } else { | } else { |
| outlen=buf_size; | outlen=buf_size; |
| out=new(pool) unsigned char[outlen+1]; | out=(unsigned char*)malloc((outlen+1)*sizeof(unsigned char)); |
| memcpy(out, buf, outlen); | memcpy(out, buf, outlen); |
| error=0; | error=0; |
| } | } |
| Line 643 xmlChar *Charset::transcode_buf2xchar(Po | Line 643 xmlChar *Charset::transcode_buf2xchar(Po |
| out[outlen/*surely would be less then on input*/]=0; | out[outlen/*surely would be less then on input*/]=0; |
| return (xmlChar *)out; | return (xmlChar *)out; |
| } | } |
| GdomeDOMString_auto_ptr Charset::transcode_buf2dom(const char* buf, size_t buf_size) { | GdomeDOMString_auto_ptr Charset::transcode_buf2dom(const char *buf, size_t buf_size) { |
| return GdomeDOMString_auto_ptr((gchar*)transcode_buf2xchar(buf, buf_size)); | return GdomeDOMString_auto_ptr((gchar*)transcode_buf2xchar(buf, buf_size)); |
| } | } |
| GdomeDOMString_auto_ptr Charset::transcode(const String& s) { | GdomeDOMString_auto_ptr Charset::transcode(const String& s) { |
| const char* cstr=s.cstr(String::UL_UNSPECIFIED); | const char *cstr=s.cstr(String::UL_UNSPECIFIED); |
| return transcode_buf2dom(cstr, strlen(cstr)); | return transcode_buf2dom(cstr, strlen(cstr)); |
| } | } |
| #endif | #endif |
| String& Charset::transcode(Pool& pool, | |
| const Charset& source_transcoder, | |
| const Charset& dest_transcoder, | |
| const String& src) { | |
| const char *src_ptr=src.cstr(String::UL_UNSPECIFIED); | |
| size_t src_size=strlen(src_ptr); | |
| const void *dest_ptr; | |
| size_t dest_size; | |
| Charset::transcode(pool, | |
| source_transcoder, (const void*)src_ptr, src_size, | |
| dest_transcoder, dest_ptr, dest_size); | |
| return *new(pool) String(pool, (const char*)dest_ptr, dest_size); | |
| } | |
| void Charset::transcode(Pool& pool, | |
| const Charset& source_transcoder, | |
| const Charset& dest_transcoder, | |
| Array& src) { | |
| for(int i=0; i<src.size(); i++) | |
| src.put(i, &transcode(pool, source_transcoder, dest_transcoder, *src.get_string(i))); | |
| } | |
| #ifndef DOXYGEN | |
| struct Transcode_pair_info { | |
| Pool* pool; | |
| const Charset* source_transcoder; | |
| const Charset* dest_transcoder; | |
| }; | |
| #endif | |
| static void transcode_pair(const Hash::Key& key, Hash::Val *& value, void *raw_info) { | |
| Transcode_pair_info& info=*static_cast<Transcode_pair_info*>(raw_info); | |
| value=&Charset::transcode(*info.pool, | |
| *info.source_transcoder, | |
| *info.dest_transcoder, | |
| *static_cast<String*>(value)); | |
| } | |
| void Charset::transcode(Pool& pool, | |
| const Charset& source_transcoder, | |
| const Charset& dest_transcoder, | |
| Hash& src) { | |
| Transcode_pair_info info={&pool, &source_transcoder, &dest_transcoder}; | |
| src.for_each(transcode_pair, &info); | |
| } |