diff options
Diffstat (limited to 'fbreader/src/formats/pdb/PmlReader.cpp')
| -rw-r--r-- | fbreader/src/formats/pdb/PmlReader.cpp | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/fbreader/src/formats/pdb/PmlReader.cpp b/fbreader/src/formats/pdb/PmlReader.cpp deleted file mode 100644 index 712a6e0..0000000 --- a/fbreader/src/formats/pdb/PmlReader.cpp +++ /dev/null @@ -1,407 +0,0 @@ -/* - * Copyright (C) 2004-2012 Geometer Plus <contact@geometerplus.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -/* - * Information about Palm Markup Language was taken from: - * http://www.m.ereader.com/ereader/help/dropbook/pml.htm - * http://ccit205.wikispaces.com/Palm+Markup+Language+(PML) - */ - -#include <cstdlib> -#include <cctype> - -#include <ZLFile.h> -#include <ZLInputStream.h> - -#include "PmlReader.h" - -static const int pmlStreamBufferSize = 4096; - -const std::string PmlReader::ourDefaultParameter = ""; - -PmlReader::PmlReader(const std::string &encoding) : EncodedTextReader(encoding) { -} - -PmlReader::~PmlReader() { -} - -bool PmlReader::readDocument(ZLInputStream& stream) { - myStreamBuffer = new char[pmlStreamBufferSize]; - - myIsInterrupted = false; - - myState.Italic = false; - myState.Bold = false; - myState.Underlined = false; - myState.SmallCaps = false; - myState.Subscript = false; - myState.Superscript = false; - myState.Alignment = ALIGN_UNDEFINED; - myState.FontSize = NORMAL; - myState.Indent = 0; - myState.IndentBlockOn = false; - myState.BoldBlockOn = false; - myState.FootnoteLinkOn = false; - myState.InternalLinkOn = false; - myState.InvisibleText = false; - - bool code = parseDocument(stream); - - delete[] myStreamBuffer; - - return code; -} - -bool PmlReader::parseDocument(ZLInputStream &stream) { - enum { - READ_NORMAL_DATA, - READ_TAG, - READ_TAG_PARAMETER, - } parserState = READ_NORMAL_DATA; - - std::size_t tagNameLength = 0; - std::string tagName; - std::string parameterString; - - bool startParameterReading = false; - std::size_t tagCounter = 0; - static bool FLAG = true; - - while (!myIsInterrupted) { - const char *ptr = myStreamBuffer; - const char *end = myStreamBuffer + stream.read(myStreamBuffer, pmlStreamBufferSize); - if (ptr == end) { - break; - } - const char *dataStart = ptr; - bool readNextChar = true; - while (ptr != end) { - switch (parserState) { - case READ_NORMAL_DATA: - if (*ptr == '\n') { - if (ptr > dataStart) { - processCharData(dataStart, ptr - dataStart); - } - newLine(); - FLAG = true; - dataStart = ptr + 1; - } else if (FLAG && std::isspace(*ptr)) { - } else { - FLAG = false; - if (*ptr == '\\') { - if (ptr > dataStart) { - processCharData(dataStart, ptr - dataStart); - } - dataStart = ptr + 1; - tagName.erase(); - parserState = READ_TAG; - } - } - break; - case READ_TAG: - if ((ptr == dataStart) && (tagName.empty())) { - if (*ptr == '\\') { - processCharData(ptr, 1); - dataStart = ptr + 1; - parserState = READ_NORMAL_DATA; - } else { - tagNameLength = findTagLength(ptr); - if (tagNameLength == 0) { - dataStart = ptr + 1; - parserState = READ_NORMAL_DATA; - ++tagCounter; - } else { - --tagNameLength; - } - } - } else { - if (tagNameLength == 0) { - tagName.append(dataStart, ptr - dataStart); - if (*ptr == '=') { - dataStart = ptr + 1; - parameterString.erase(); - parserState = READ_TAG_PARAMETER; - ++tagCounter; - } else { - readNextChar = false; - processTag(tagName); - dataStart = ptr; - parserState = READ_NORMAL_DATA; - ++tagCounter; - } - } else { - --tagNameLength; - } - } - break; - case READ_TAG_PARAMETER: - if (*ptr == '"') { - if (!startParameterReading) { - startParameterReading = true; - dataStart = ptr + 1; - } else { - parameterString.append(dataStart, ptr - dataStart); - processTag(tagName, parameterString); - parserState = READ_NORMAL_DATA; - dataStart = ptr + 1; - startParameterReading = false; - } - } - break; - } - if (readNextChar) { - ++ptr; - } else { - readNextChar = true; - } - } - if (dataStart < end) { - switch (parserState) { - case READ_NORMAL_DATA: - processCharData(dataStart, end - dataStart); - case READ_TAG: - tagName.append(dataStart, end - dataStart); - break; - case READ_TAG_PARAMETER: - parameterString.append(dataStart, end - dataStart); - break; - default: - break; - } - } - } - return myIsInterrupted; -} - -std::size_t PmlReader::findTagLength(const char* ptr) { - switch(*ptr) { // tag action description | close | support | - case 'p': // new page | - | + | - case 'x': // new chapter and new page | + | + | - case 'c': // center alignment block | + | + | - case 'r': // right alignment block | + | + | - case 'i': // italize block | + | + | - case 'u': // underlined block | + | + | - case 'o': // overstrike block | + | - | - case 'v': // invisible text block | + | + | - case 't': // indent block | + | + | - case 'T': // indent with value | - | + | - case 'w': // embed text width rule | - | - | - case 'n': // switch to normal font | - | + | - case 's': // switch to std font |+ or \n| + | - case 'b': // switch to bold font (deprecated) |+ or \n| - | - case 'l': // switch to large font |+ or \n| + | - case 'B': // mark text as bold | + | + | - case 'k': // smaller font size and uppercase | + | + | - case 'm': // insert named image | - | + | - case 'q': // reference to another spot | + | + | - case 'Q': // link anchor for \q reference | - | + | - case '-': // soft hyphen | - | - | - case 'I': // reference index item | - | - | - return 1; - case 'X': // XN - new chapter, n indent level | + | - | - case 'S': // Sp - mark text as superscript | + | + | - // Sb - mark text as subscript | + | + | - // Sd - link to a sidebar | + | - | - case 'C': // CN - chapter title + indent level| - | - | - case 'F': // Fn - link to a footnote | + | + | - return 2; - default: - return 0; - } -} - - -void PmlReader::interrupt() { - myIsInterrupted = true; -} - - -void PmlReader::processTag(std::string &tagName, const std::string ¶meter) { - const char tagDeterminant = *tagName.data(); - switch (tagDeterminant) { - case 'p': - newPage(); - break; - case 'x': - //TODO add close tag processing - newPage(); - break; - case 'B': - if (!myState.BoldBlockOn) { - processFontProperty(FONT_BOLD); - } - break; - case 'i': - processFontProperty(FONT_ITALIC); - break; - case 'u': - processFontProperty(FONT_UNDERLINED); - break; - case 'v': - myState.InvisibleText = !myState.InvisibleText;; - break; - case 'c': - processAlignment(ALIGN_CENTER); - break; - case 'r': - processAlignment(ALIGN_RIGHT); - break; - case 'n': - processFontSize(NORMAL); - break; - case 'b': - myState.BoldBlockOn = !myState.BoldBlockOn; - processFontProperty(FONT_BOLD); - break; - case 's': - processFontSize(SMALLER); - break; - case 'l': - processFontSize(LARGER); - break; - case 'k': - myState.SmallCaps = !myState.SmallCaps; - processFontSize(SMALLER); - break; - case 'S': - if (tagName == "Sb") { - processFontProperty(FONT_SUBSCRIPT); - } else if (tagName == "Sp") { - processFontProperty(FONT_SUPERSCRIPT); - } else if (tagName == "Sd") { - //processSidebarLink(); - } - break; - case 't': - processIndent(); - break; - case 'T': - processIndent(parameter); - myState.IndentBlockOn = false; - break; - case 'w': - //addHorizontalRule(parameter); - break; - case 'F': - processLink(FOOTNOTE, parameter); - break; - case 'q': - processLink(INTERNAL_HYPERLINK, parameter); - break; - case 'Q': - addLinkLabel(parameter); - break; - case 'm': - addImageReference(parameter); - break; - default: - //std::cerr << "PmlReader: unsupported tag: name: " << tagName << " parameter: " << parameter << "\n"; - break; - } -} - -void PmlReader::processCharData(const char* data, std::size_t len, bool convert) { - if(!myState.InvisibleText) { - addCharData(data, len, convert); - } -} - -void PmlReader::processFontProperty(PmlReader::FontProperty property) { - switch (property) { - case FONT_BOLD: - myState.Bold = !myState.Bold; - switchFontProperty(FONT_BOLD); - break; - case FONT_ITALIC: - myState.Italic = !myState.Italic; - switchFontProperty(FONT_ITALIC); - break; - case FONT_UNDERLINED: - myState.Underlined = !myState.Underlined; - switchFontProperty(FONT_UNDERLINED); - break; - case FONT_SUBSCRIPT: - myState.Subscript = !myState.Subscript; - switchFontProperty(FONT_SUBSCRIPT); - break; - case FONT_SUPERSCRIPT: - myState.Superscript = !myState.Superscript; - switchFontProperty(FONT_SUPERSCRIPT); - break; - } -} - -void PmlReader::processAlignment(ZLTextAlignmentType alignment) { - if (myState.Alignment != alignment) { - myState.Alignment = alignment; - } else { - myState.Alignment = ALIGN_UNDEFINED; - } - newParagraph(); -} - -void PmlReader::processFontSize(FontSizeType sizeType) { - if (myState.FontSize != sizeType) { - myState.FontSize = sizeType; - } else { - myState.FontSize = NORMAL; - } - setFontSize(); -} - -void PmlReader::processIndent(const std::string& parameter) { - int indentPercentSize = 5; - if (!parameter.empty()) { - const int index = parameter.find('%'); - if (index != -1) { - const std::string indentValueStr = parameter.substr(0, index); - indentPercentSize = std::atoi(indentValueStr.data()); - } else { - indentPercentSize = 5; - } - } - if (!myState.IndentBlockOn) { - myState.Indent = indentPercentSize; - } else { - myState.Indent = 0; - } - myState.IndentBlockOn = !myState.IndentBlockOn; - newParagraph(); -} - -void PmlReader::processLink(FBTextKind kind, const std::string ¶meter) { - switch(kind) { - case FOOTNOTE: - myState.FootnoteLinkOn = !myState.FootnoteLinkOn; - addLink(FOOTNOTE, parameter, myState.FootnoteLinkOn); - break; - case INTERNAL_HYPERLINK: - myState.InternalLinkOn = !myState.InternalLinkOn; - if (parameter.size() > 1) { - // '#' character has to stand before link label , so we should omit '#' for getting label - addLink(INTERNAL_HYPERLINK, parameter.substr(1), myState.InternalLinkOn); - } else { - // In case trailing or corrupted tag we use parameter entirely - addLink(INTERNAL_HYPERLINK, parameter, myState.InternalLinkOn); - } - break; - default: - break; - } -} |