lyx_mirror/src/output_plaintext.cpp

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/**
* \file output_plaintext.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bjønnes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "output_plaintext.h"
#include "Buffer.h"
#include "BufferParams.h"
#include "Layout.h"
#include "output.h"
#include "OutputParams.h"
#include "Paragraph.h"
#include "ParagraphList.h"
#include "ParagraphParameters.h"
#include "support/debug.h"
#include "support/gettext.h"
#include "support/lstrings.h"
using namespace std;
using namespace lyx::support;
namespace lyx {
void writePlaintextFile(Buffer const & buf, FileName const & fname,
OutputParams const & runparams)
{
ofdocstream ofs;
if (!openFileWrite(ofs, fname))
return;
// make sure we are ready to export
buf.updateBuffer();
buf.updateMacroInstances(OutputUpdate);
buf.makeCitationLabels();
writePlaintextFile(buf, ofs, runparams);
}
void writePlaintextFile(Buffer const & buf, odocstream & os,
the stuff from the sneak preview: For one, it still contains a few things that are already in CVS (the 'brown paperbag' changes). Secondly, this changes the ParagraphList to a std::vector but does not yet take full advantage of it except removing LyXText::parOffset() and similar. I had an extensive talk with my profiler and we are happy nevertheless. This also moves almost all Cut&Paste specific stuff from text.C to CutAndPaste.C. Much smaller interface now... Namespace CutAndPaste is now lyx::cap::. Was inconsistent with the rest.... Make ParagraphList a proper class. We'll need this later for a specialized erase/insert. Remove some unneeded prototypes and function declarations Use ParameterStruct directly instead of ShareContainer<ParameterStruct> Inline a few accesses to CursorSlice members as suggested by the profiler. Fix commandline conversion crash reported by Kayvan. Replace PosIterator by DocumentIterator. The latter can also iterate through math and nested text in math... Remove math specific hack from Documentiterator Derive InsetCollapsable from InsetText instead of using an InsetText member. This give us the opportunity to get rid of the InsetOld::owner_ backpointer. Cosmetics in CutAndPaste.C and cursor.C. Fix nasty crash (popping slices off an empty selection anchor). Add a few asserts. Remove all 'manual' update calls. We do now one per user interaction which is completely sufficient. git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8527 a592a061-630c-0410-9148-cb99ea01b6c8
2004-03-25 09:16:36 +00:00
OutputParams const & runparams)
{
bool ref_printed = false;
ParagraphList const & par = buf.paragraphs();
ParagraphList::const_iterator beg = par.begin();
ParagraphList::const_iterator end = par.end();
ParagraphList::const_iterator it = beg;
for (; it != end; ++it) {
writePlaintextParagraph(buf, *it, os, runparams, ref_printed);
os << "\n";
if (runparams.linelen > 0)
os << "\n";
}
}
static pair<int, docstring> addDepth(int depth, int ldepth)
{
int d = depth * 2;
if (ldepth > depth)
d += (ldepth - depth) * 2;
return make_pair(d, docstring(d, ' '));
}
void writePlaintextParagraph(Buffer const & buf,
Paragraph const & par,
odocstream & ods,
OutputParams const & runparams,
bool & ref_printed, size_t max_length)
{
int ltype = 0;
depth_type ltype_depth = 0;
depth_type depth = par.params().depth();
// First write the layout
string const tmp = to_utf8(par.layout().name());
if (compare_ascii_no_case(tmp, "itemize") == 0) {
ltype = 1;
ltype_depth = depth + 1;
} else if (compare_ascii_no_case(tmp, "enumerate") == 0) {
ltype = 2;
ltype_depth = depth + 1;
} else if (contains(ascii_lowercase(tmp), "ection")) {
ltype = 3;
ltype_depth = depth + 1;
} else if (contains(ascii_lowercase(tmp), "aragraph")) {
ltype = 4;
ltype_depth = depth + 1;
} else if (compare_ascii_no_case(tmp, "description") == 0) {
ltype = 5;
ltype_depth = depth + 1;
} else if (compare_ascii_no_case(tmp, "abstract") == 0) {
ltype = 6;
ltype_depth = 0;
} else if (compare_ascii_no_case(tmp, "bibliography") == 0) {
ltype = 7;
ltype_depth = 0;
} else {
ltype = 0;
ltype_depth = 0;
}
/* the labelwidthstring used in lists */
/* noindent ? */
/* what about the alignment */
// runparams.linelen == 0 is special and means we don't have paragraph breaks
string::size_type currlinelen = 0;
odocstringstream os;
os << docstring(depth * 2, ' ');
currlinelen += depth * 2;
//--
// we should probably change to the paragraph language in the
// support/gettext.here (if possible) so that strings are output in
// the correct language! (20012712 Jug)
//--
switch (ltype) {
case 0: // Standard
case 4: // (Sub)Paragraph
case 5: // Description
break;
case 6: // Abstract
if (runparams.linelen > 0) {
os << buf.B_("Abstract") << "\n\n";
currlinelen = 0;
} else {
docstring const abst = buf.B_("Abstract: ");
os << abst;
currlinelen += abst.length();
}
break;
case 7: // Bibliography
if (!ref_printed) {
if (runparams.linelen > 0) {
os << buf.B_("References") << "\n\n";
currlinelen = 0;
} else {
docstring const refs = buf.B_("References: ");
os << refs;
currlinelen += refs.length();
}
ref_printed = true;
}
break;
default: {
docstring const label = par.params().labelString();
if (!label.empty()) {
os << label << ' ';
currlinelen += label.length() + 1;
}
break;
}
}
if (currlinelen == 0) {
pair<int, docstring> p = addDepth(depth, ltype_depth);
os << p.second;
currlinelen += p.first;
}
docstring word;
for (pos_type i = 0; i < par.size(); ++i) {
// deleted characters don't make much sense in plain text output
if (par.isDeleted(i))
continue;
if (os.str().size() > max_length)
break;
char_type c = par.getUChar(buf.params(), i);
if (par.isInset(i) || c == ' ') {
if (runparams.linelen > 0 &&
currlinelen + word.length() > runparams.linelen) {
os << '\n';
pair<int, docstring> p = addDepth(depth, ltype_depth);
os << p.second;
currlinelen = p.first;
}
os << word;
currlinelen += word.length();
word.erase();
}
if (par.isInset(i)) {
OutputParams rp = runparams;
rp.depth = par.params().depth();
int len = par.getInset(i)->plaintext(os, rp, max_length);
if (len >= Inset::PLAINTEXT_NEWLINE)
currlinelen = len - Inset::PLAINTEXT_NEWLINE;
else
currlinelen += len;
continue;
}
switch (c) {
case ' ':
os << ' ';
currlinelen++;
break;
case '\0':
LYXERR(Debug::INFO, "writePlaintextFile: NUL char in structure.");
break;
default:
word += c;
break;
}
}
// currlinelen may be greater than runparams.linelen!
// => check whether word is empty and do nothing in this case
if (!word.empty()) {
if (runparams.linelen > 0 &&
currlinelen + word.length() > runparams.linelen) {
os << '\n';
pair<int, docstring> p = addDepth(depth, ltype_depth);
os << p.second;
currlinelen = p.first;
}
os << word;
}
ods << os.str();
}
} // namespace lyx