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| version 1.19, 2002/02/08 07:27:47 | version 1.30, 2002/09/11 11:11:06 |
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| Line 1 | Line 1 |
| /** @file | /** @file |
| Parser: Charset connection implementation. | Parser: Charset connection implementation. |
| Copyright(c) 2001, 2002 ArtLebedev Group(http://www.artlebedev.com) | Copyright(c) 2001, 2002 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) |
| $Id$ | |
| */ | */ |
| static const char* IDENT_CHARSET_C="$Date$"; | |
| #include "pa_charset.h" | #include "pa_charset.h" |
| #ifdef XML | #ifdef XML |
| Line 153 void Charset::loadDefinition(const Strin | Line 153 void Charset::loadDefinition(const Strin |
| case 8: | case 8: |
| // charset | // charset |
| if(tables.toTableSize>MAX_CHARSET_UNI_CODES) | if(tables.toTableSize>MAX_CHARSET_UNI_CODES) |
| throw Exception(0, 0, | throw Exception("parser.runtime", |
| &request_file_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); |
| Line 191 void Charset::sort_ToTable() { | Line 191 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) { | |
| unsigned int lowOfs = 0; | unsigned int lowOfs = 0; |
| unsigned int hiOfs = tables.toTableSize - 1; | unsigned int hiOfs = tables.toTableSize - 1; |
| XMLByte curByte = 0; | XMLByte curByte = 0; |
| Line 210 static XMLByte xlatOneTo(const XMLCh toX | Line 211 static XMLByte xlatOneTo(const XMLCh toX |
| return tables.toTable[midOfs].extCh; | return tables.toTable[midOfs].extCh; |
| } while(lowOfs+1<hiOfs); | } while(lowOfs+1<hiOfs); |
| return '?'; | return not_found; |
| } | } |
| void Charset::transcode(Pool& pool, | void Charset::transcode(Pool& pool, |
| Line 360 static int transcodeToUTF8( | Line 361 static int transcodeToUTF8( |
| // Return the characters read | // Return the characters read |
| toFillLen = outPtr - toFill; | toFillLen = outPtr - toFill; |
| return srcPtr==srcEnd?(int)toFillLen:-1; | //return srcPtr==srcEnd?(int)toFillLen:-1; |
| /* | |
| xmlCharEncodingInputFunc | |
| Returns : | |
| the number of byte written, or -1 by lack of space, or -2 if the transcoding failed. The value of inlen after return is the | |
| number of octets consumed as the return value is positive, else unpredictiable. The value of outlen after return is the number | |
| of ocetes consumed. | |
| */ | |
| return 0; | |
| } | } |
| static size_t transcodeFromUTF8( | /// @todo digital entites only when xml/html output [at output in html/xml mode, in html part of a letter] |
| static int transcodeFromUTF8( | |
| const XMLByte *srcData, size_t& srcLen, | const XMLByte *srcData, size_t& srcLen, |
| XMLByte* toFill, size_t& toFillLen, | XMLByte* toFill, size_t& toFillLen, |
| const Charset::Tables& tables) { | const Charset::Tables& tables) { |
| Line 404 static size_t transcodeFromUTF8( | Line 414 static size_t transcodeFromUTF8( |
| break; | break; |
| default: | default: |
| throw Exception(0, 0, | throw Exception(0, |
| 0, | 0, |
| "transcodeFromUTF8 error: wrong trailingBytes value(%d)", trailingBytes); | "transcodeFromUTF8 error: wrong trailingBytes value(%d)", trailingBytes); |
| } | } |
| Line 413 static size_t transcodeFromUTF8( | Line 423 static size_t transcodeFromUTF8( |
| // If it will fit into a single char, then put it in. Otherwise | // If it will fit into a single char, then put it in. Otherwise |
| // fail [*encode it as a surrogate pair. If its not valid, use the | // fail [*encode it as a surrogate pair. If its not valid, use the |
| // replacement char.*] | // replacement char.*] |
| if(!(tmpVal & 0xFFFF0000)) | if(!(tmpVal & 0xFFFF0000)) { |
| *outPtr++= xlatOneTo(tmpVal, tables); | if(XMLByte xlat=xlatOneTo(tmpVal, tables, 0)) |
| else | *outPtr++=xlat; |
| throw Exception(0, 0, | else |
| outPtr+=sprintf((char *)outPtr, "&#%d;", tmpVal); // &#decimal; | |
| } else | |
| throw Exception(0, | |
| 0, | 0, |
| "transcodeFromUTF8 error: too big tmpVal(0x%08X)", tmpVal); | "transcodeFromUTF8 error: too big tmpVal(0x%08X)", tmpVal); |
| } | } |
| Line 427 static size_t transcodeFromUTF8( | Line 440 static size_t transcodeFromUTF8( |
| // Return the characters read | // Return the characters read |
| toFillLen = outPtr - toFill; | toFillLen = outPtr - toFill; |
| return srcPtr==srcEnd?(int)toFillLen:-1; | //return srcPtr==srcEnd?(int)toFillLen:-1; |
| /* | |
| xmlCharEncodingOutputFunc | |
| Returns : | |
| the number of byte written, or -1 by lack of space, or -2 if the transcoding failed. The value of inlen after return is the | |
| number of octets consumed as the return value is positive, else unpredictiable. The value of outlen after return is the number | |
| of ocetes consumed. | |
| */ | |
| return 0; | |
| } | } |
| /// @todo not so memory-hungry with prescan | /// @todo not so memory-hungry with prescan |
| void Charset::transcodeToUTF8(Pool& pool, | 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*/; | dest_content_length=source_content_length*6/*so that surly enough, max utf8 seq len=6*/; |
| XMLByte *dest_body=(XMLByte*)pool.malloc(dest_content_length); | XMLByte *dest_body=(XMLByte*)pool.malloc(dest_content_length); |
| if(::transcodeToUTF8( | if(::transcodeToUTF8( |
| Line 448 void Charset::transcodeToUTF8(Pool& pool | Line 469 void Charset::transcodeToUTF8(Pool& pool |
| // return | // return |
| adest_body=dest_body; | adest_body=dest_body; |
| } | } |
| /// @test buf overflow | |
| void Charset::transcodeFromUTF8(Pool& pool, | void Charset::transcodeFromUTF8(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/*surly enough*/; | dest_content_length=source_content_length*6/*so that surly enough, "ÿ" has max ratio */; |
| XMLByte *dest_body=(XMLByte*)pool.malloc(dest_content_length); | XMLByte *dest_body=(XMLByte*)pool.malloc(dest_content_length); |
| if(::transcodeFromUTF8( | if(::transcodeFromUTF8( |
| Line 485 void Charset::transcodeToCharset(Pool& p | Line 505 void Charset::transcodeToCharset(Pool& p |
| for(XMLByte* outPtr=dest_body; srcPtr<srcEnd; srcPtr++) { | for(XMLByte* outPtr=dest_body; srcPtr<srcEnd; srcPtr++) { |
| XMLCh curVal = tables.fromTable[*srcPtr]; | XMLCh curVal = tables.fromTable[*srcPtr]; |
| if(curVal) | if(curVal) |
| *outPtr++=xlatOneTo(curVal, dest_charset.tables); | *outPtr++=xlatOneTo(curVal, dest_charset.tables, '?'); |
| else { | else { |
| // use the replacement character | // use the replacement character |
| *outPtr++= '?'; | *outPtr++= '?'; |
| Line 505 static int xml256CharEncodingInp | Line 525 static int xml256CharEncodingInp |
| int *inlen, | int *inlen, |
| void *info) { | void *info) { |
| return transcodeToUTF8( | return transcodeToUTF8( |
| in, *(unsigned int*)inlen, | in, *(size_t*)inlen, |
| out, *(unsigned int*)outlen, | out, *(size_t*)outlen, |
| *(const Charset::Tables *)info); | *(const Charset::Tables *)info); |
| } | } |
| Line 517 static int xml256CharEncodingOut | Line 537 static int xml256CharEncodingOut |
| int *inlen, | int *inlen, |
| void *info) { | void *info) { |
| return transcodeFromUTF8( | return transcodeFromUTF8( |
| in, *(unsigned int*)inlen, | in, *(size_t*)inlen, |
| out, *(unsigned int*)outlen, | out, *(size_t*)outlen, |
| *(const Charset::Tables *)info); | *(const Charset::Tables *)info); |
| } | } |
| Line 540 void Charset::initTranscoder(const Strin | Line 560 void Charset::initTranscoder(const Strin |
| xmlCharEncodingHandler *Charset::transcoder(const String *source) { | xmlCharEncodingHandler *Charset::transcoder(const String *source) { |
| if(!ftranscoder) | if(!ftranscoder) |
| throw Exception(0, 0, | throw Exception("parser.runtime", |
| source, | source, |
| "unsupported encoding"); | "unsupported encoding"); |
| return ftranscoder; | return ftranscoder; |
| Line 554 const char *Charset::transcode_cstr(xmlC | Line 574 const char *Charset::transcode_cstr(xmlC |
| int outlen=inlen+1; // max | int outlen=inlen+1; // max |
| char *out=(char *)malloc(outlen*sizeof(char)); | char *out=(char *)malloc(outlen*sizeof(char)); |
| int size; | int error; |
| if(xmlCharEncodingOutputFunc output=transcoder(0)->output) { | if(xmlCharEncodingOutputFunc output=transcoder(0)->output) { |
| size=output( | error=output( |
| (unsigned char*)out, &outlen, | (unsigned char*)out, &outlen, |
| (const unsigned char*)s, &inlen, | (const unsigned char*)s, &inlen, |
| transcoder(0)->outputInfo); | transcoder(0)->outputInfo); |
| } else | } else { |
| memcpy(out, s, size=inlen); | memcpy(out, s, outlen=inlen); |
| if(size<0) | error=0; |
| throw Exception(0, 0, | } |
| if(error<0) | |
| throw Exception(0, | |
| 0, | 0, |
| "transcode_cstr failed (%d)", size); | "transcode_cstr failed (%d)", error); |
| out[size]=0; | out[outlen/*surely would be less then on input*/]=0; |
| return out; | return out; |
| } | } |
| String& Charset::transcode(xmlChar *s) { | String& Charset::transcode(xmlChar *s) { |
| Line 581 String& Charset::transcode(GdomeDOMStrin | Line 603 String& Charset::transcode(GdomeDOMStrin |
| } | } |
| /// @test less memory using -maybe- xmlParserInputBufferCreateMem | /// @test less memory using -maybe- xmlParserInputBufferCreateMem |
| GdomeDOMString_auto_ptr Charset::transcode_buf(const char *buf, size_t buf_size) { | xmlChar *Charset::transcode_buf2xchar(const char *buf, size_t buf_size) { |
| int outlen=buf_size*6/*max*/+1; | unsigned char *out; |
| unsigned char *out=(unsigned char*)malloc(outlen*sizeof(unsigned char)); | int outlen; |
| int error; | |
| int size; | |
| if(xmlCharEncodingInputFunc input=transcoder(0)->input) { | if(xmlCharEncodingInputFunc input=transcoder(0)->input) { |
| size=input( | outlen=buf_size*6/*max*/+1; |
| out=(unsigned char*)malloc(outlen*sizeof(unsigned char)); | |
| 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 { |
| memcpy(out, buf, size=buf_size); | outlen=buf_size; |
| out=(unsigned char*)malloc(outlen*sizeof(unsigned char)); | |
| memcpy(out, buf, outlen); | |
| error=0; | |
| } | |
| if(size<0) | if(error<0) |
| throw Exception(0, 0, | throw Exception(0, |
| 0, | 0, |
| "transcode_buf failed (%d)", size); | "transcode_buf failed (%d)", error); |
| out[size]=0; | out[outlen/*surely would be less then on input*/]=0; |
| return GdomeDOMString_auto_ptr((gchar*)out); | return (xmlChar *)out; |
| } | |
| GdomeDOMString_auto_ptr Charset::transcode_buf2dom(const char *buf, size_t 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_buf(cstr, strlen(cstr)); | return transcode_buf2dom(cstr, strlen(cstr)); |
| } | } |
| #endif | #endif |