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lyx_mirror/src/tex2lyx/table.cpp
Juergen Spitzmueller 4431ae2505 tex2lyx: support decimal alignment in tables 
(cherry picked from commit 8ef2558dc2)
2018-09-11 08:03:23 +02:00

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/**
* \file table.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author André Pönitz
* \author Jean-Marc Lasgouttes
* \author Georg Baum
*
* Full author contact details are available in file CREDITS.
*/
// {[(
#include <config.h>
#include "tex2lyx.h"
#include "Preamble.h"
#include "support/lassert.h"
#include "support/convert.h"
#include "support/lstrings.h"
#include <algorithm>
#include <iostream>
#include <sstream>
#include <vector>
#include <map>
using namespace std;
namespace lyx {
namespace {
class ColInfo {
public:
ColInfo() : align('n'), valign('n'), rightlines(0), leftlines(0),
decimal_point('\0') {}
/// column alignment
char align;
/// vertical alignment
char valign;
/// column width
string width;
/// special column alignment
string special;
/// number of lines on the right
int rightlines;
/// number of lines on the left
int leftlines;
/// decimal separator
char decimal_point;
};
/// row type for longtables
enum LTRowType
{
/// normal row
LT_NORMAL,
/// part of head
LT_HEAD,
/// part of head on first page
LT_FIRSTHEAD,
/// part of foot
LT_FOOT,
/// part of foot on last page
LT_LASTFOOT
};
class RowInfo {
public:
RowInfo() : topline(false), bottomline(false), type(LT_NORMAL),
caption(false), newpage(false) {}
/// Does this row have any special setting?
bool special() const
{
return topline || bottomline || !top_space.empty() ||
!bottom_space.empty() || !interline_space.empty() ||
type != LT_NORMAL || caption || newpage;
}
/// horizontal line above
bool topline;
/// horizontal line below
bool bottomline;
/// Extra space between the top line and this row
string top_space;
/// Extra space between this row and the bottom line
string bottom_space;
/// Extra space between the bottom line and the next top line
string interline_space;
/// These are for longtabulars only
/// row type (head, foot, firsthead etc.)
LTRowType type;
/// row for a caption
bool caption;
/// row for a newpage
bool newpage;
};
/// the numeric values are part of the file format!
enum Multi {
/// A normal cell
CELL_NORMAL = 0,
/// A multicolumn cell. The number of columns is <tt>1 + number
/// of CELL_PART_OF_MULTICOLUMN cells</tt> that follow directly
CELL_BEGIN_OF_MULTICOLUMN,
/// This is a dummy cell (part of a multicolumn cell)
CELL_PART_OF_MULTICOLUMN,
///
CELL_BEGIN_OF_MULTIROW,
///
CELL_PART_OF_MULTIROW
};
class CellInfo {
public:
CellInfo() : multi(CELL_NORMAL), align('n'), valign('n'),
leftlines(0), rightlines(0), topline(false),
bottomline(false), rotate(0), mrxnum(0) {}
/// cell content
string content;
/// multicolumn flag
Multi multi;
/// cell alignment
char align;
/// vertical cell alignment
char valign;
/// number of lines on the left
int leftlines;
/// number of lines on the right
int rightlines;
/// do we have a line above?
bool topline;
/// do we have a line below?
bool bottomline;
/// how is the cell rotated?
int rotate;
/// width for multicolumn cells
string width;
/// special formatting for multicolumn cells
string special;
/// multirow offset
string mroffset;
/// number of further multirows
int mrxnum;
};
class ltType {
public:
// constructor
ltType() : set(false), topDL(false), bottomDL(false), empty(false) {}
// we have this header type (is set in the getLT... functions)
bool set;
// double borders on top
bool topDL;
// double borders on bottom
bool bottomDL;
// used for FirstHeader & LastFooter and if this is true
// all the rows marked as FirstHeader or LastFooter are
// ignored in the output and it is set to be empty!
bool empty;
};
/// translate a horizontal alignment (as stored in ColInfo and CellInfo) to LyX
inline char const * verbose_align(char c)
{
switch (c) {
case 'c':
return "center";
case 'r':
return "right";
case 'l':
return "left";
case 'd':
return "decimal";
default:
return "none";
}
}
/// translate a vertical alignment (as stored in ColInfo and CellInfo) to LyX
inline char const * verbose_valign(char c)
{
// The default value for no special alignment is "top".
switch (c) {
case 'm':
return "middle";
case 'b':
return "bottom";
case 'p':
default:
return "top";
}
}
// stripped down from tabluar.C. We use it currently only for bools and
// strings
string const write_attribute(string const & name, bool const & b)
{
// we write only true attribute values so we remove a bit of the
// file format bloat for tabulars.
return b ? ' ' + name + "=\"true\"" : string();
}
string const write_attribute(string const & name, string const & s)
{
return s.empty() ? string() : ' ' + name + "=\"" + s + '"';
}
string const write_attribute(string const & name, int const & i)
{
// we write only true attribute values so we remove a bit of the
// file format bloat for tabulars.
return i ? write_attribute(name, convert<string>(i)) : string();
}
/*! rather brutish way to code table structure in a string:
\verbatim
\begin{tabular}{ccc}
1 & 2 & 3\\ \hline
\multicolumn{2}{c}{4} & 5 //
6 & 7 \\
8 \endhead
\end{tabular}
\endverbatim
gets "translated" to:
\verbatim
HLINE 1 TAB 2 TAB 3 HLINE HLINE LINE
\hline HLINE \multicolumn{2}{c}{4} TAB 5 HLINE HLINE LINE
HLINE 6 TAB 7 HLINE HLINE LINE
HLINE 8 HLINE \endhead HLINE LINE
\endverbatim
*/
char const TAB = '\001';
char const LINE = '\002';
char const HLINE = '\004';
/*!
* Move the information in leftlines, rightlines, align and valign to the
* special field. This is necessary if the special field is not empty,
* because LyX ignores leftlines > 1, rightlines > 1, align and valign in
* this case.
*/
void ci2special(ColInfo & ci)
{
if (ci.width.empty() && ci.align == 'n')
// The alignment setting is already in special, since
// handle_colalign() never stores ci with these settings
// and ensures that leftlines == 0 and rightlines == 0 in
// this case.
return;
if (ci.decimal_point != '\0') {
// we only support decimal point natively
// with 'l' alignment in or 'n' alignment
// with width in second row
if (ci.align != 'l' && ci.align != 'n') {
ci.decimal_point = '\0';
return;
} else
ci.special.clear();
}
if (!ci.width.empty()) {
switch (ci.align) {
case 'l':
ci.special += ">{\\raggedright}";
break;
case 'r':
ci.special += ">{\\raggedleft}";
break;
case 'c':
ci.special += ">{\\centering}";
break;
}
if (ci.valign == 'n')
ci.special += 'p';
else
ci.special += ci.valign;
ci.special += '{' + ci.width + '}';
ci.width.erase();
} else
ci.special += ci.align;
// LyX can only have one left and one right line.
for (int i = 1; i < ci.leftlines; ++i)
ci.special.insert(0, "|");
for (int i = 1; i < ci.rightlines; ++i)
ci.special += '|';
ci.leftlines = min(ci.leftlines, 1);
ci.rightlines = min(ci.rightlines, 1);
ci.align = 'n';
ci.valign = 'n';
}
/*!
* Handle column specifications for tabulars and multicolumns.
* The next token of the parser \p p must be an opening brace, and we read
* everything until the matching closing brace.
* The resulting column specifications are filled into \p colinfo. This is
* in an intermediate form. fix_colalign() makes it suitable for LyX output.
*/
void handle_colalign(Parser & p, vector<ColInfo> & colinfo,
ColInfo const & start)
{
if (p.get_token().cat() != catBegin)
cerr << "Wrong syntax for table column alignment.\n"
"Expected '{', got '" << p.curr_token().asInput()
<< "'.\n";
ColInfo next = start;
for (Token t = p.get_token(); p.good() && t.cat() != catEnd;
t = p.get_token()) {
#ifdef FILEDEBUG
cerr << "t: " << t << " c: '" << t.character() << "'\n";
#endif
// We cannot handle comments here
if (t.cat() == catComment) {
if (t.cs().empty()) {
// "%\n" combination
p.skip_spaces();
} else
cerr << "Ignoring comment: " << t.asInput();
continue;
}
switch (t.character()) {
case ' ':
// whitespace, ignore.
break;
case 'c':
case 'l':
case 'r':
// new column, horizontal aligned
next.align = t.character();
if (!next.special.empty()) {
ci2special(next);
// handle decimal separator
if (next.decimal_point != '\0') {
if (!colinfo.empty() && colinfo.back().align == 'r') {
colinfo.back().align = 'd';
colinfo.back().decimal_point = next.decimal_point;
} else
next.decimal_point = '\0';
}
}
colinfo.push_back(next);
next = ColInfo();
break;
case 'p':
case 'b':
case 'm':
// new column, vertical aligned box
next.valign = t.character();
next.width = p.verbatim_item();
if (!next.special.empty()) {
ci2special(next);
// handle decimal separator
if (next.decimal_point != '\0') {
if (!colinfo.empty() && colinfo.back().align == 'r') {
colinfo.back().align = 'd';
colinfo.back().decimal_point = next.decimal_point;
} else
next.decimal_point = '\0';
}
}
colinfo.push_back(next);
next = ColInfo();
break;
case '|':
// vertical rule
if (colinfo.empty()) {
if (next.special.empty())
++next.leftlines;
else
next.special += '|';
} else if (colinfo.back().special.empty())
++colinfo.back().rightlines;
else if (next.special.empty())
++next.leftlines;
else
colinfo.back().special += '|';
break;
case '>': {
// text before the next column
string const s = trimSpaceAndEol(p.verbatim_item());
if (next.special.empty() &&
next.align == 'n') {
// Maybe this can be converted to a
// horizontal alignment setting for
// fixed width columns
if (s == "\\raggedleft")
next.align = 'r';
else if (s == "\\raggedright")
next.align = 'l';
else if (s == "\\centering")
next.align = 'c';
else
next.special = ">{" + s + '}';
} else
next.special += ">{" + s + '}';
break;
}
case '<': {
// text after the last column
string const s = trimSpaceAndEol(p.verbatim_item());
if (colinfo.empty())
// This is not possible in LaTeX.
cerr << "Ignoring separator '<{"
<< s << "}'." << endl;
else {
ColInfo & ci = colinfo.back();
ci2special(ci);
ci.special += "<{" + s + '}';
}
break;
}
case '*': {
if (p.next_token().character() != '{')
continue;
// *{n}{arg} means 'n' columns of type 'arg'
string const num = p.verbatim_item();
string const arg = p.verbatim_item();
size_t const n = convert<unsigned int>(num);
if (!arg.empty() && n > 0) {
string s("{");
for (size_t i = 0; i < n; ++i)
s += arg;
s += '}';
Parser p2(s);
handle_colalign(p2, colinfo, next);
next = ColInfo();
} else {
cerr << "Ignoring column specification"
" '*{" << num << "}{"
<< arg << "}'." << endl;
}
break;
}
case '@':
// text instead of the column spacing
case '!': {
// text in addition to the column spacing
string const arg = p.verbatim_item();
next.special += t.character();
next.special += '{' + arg + '}';
string const sarg = arg.size() > 2 ? arg.substr(0, arg.size() - 1) : string();
if (t.character() == '@' && sarg == "\\extracolsep{0pt}")
next.decimal_point = arg.back();
break;
}
default: {
// try user defined column types
// unknown column types (nargs == -1) are
// assumed to consume no arguments
ci2special(next);
next.special += t.character();
int const nargs =
preamble.getSpecialTableColumnArguments(t.character());
for (int i = 0; i < nargs; ++i)
next.special += '{' +
p.verbatim_item() + '}';
colinfo.push_back(next);
next = ColInfo();
break;
}
}
}
// Maybe we have some column separators that need to be added to the
// last column?
ci2special(next);
if (!next.special.empty()) {
ColInfo & ci = colinfo.back();
ci2special(ci);
ci.special += next.special;
next.special.erase();
}
}
/*!
* Move the left and right lines and alignment settings of the column \p ci
* to the special field if necessary.
*/
void fix_colalign(ColInfo & ci)
{
if (ci.leftlines > 1 || ci.rightlines > 1)
ci2special(ci);
}
/*!
* LyX can't handle more than one vertical line at the left or right side
* of a column.
* This function moves the left and right lines and alignment settings of all
* columns in \p colinfo to the special field if necessary.
*/
void fix_colalign(vector<ColInfo> & colinfo)
{
// Try to move extra leftlines to the previous column.
// We do this only if both special fields are empty, otherwise we
// can't tell wether the result will be the same.
for (size_t col = 0; col < colinfo.size(); ++col) {
if (colinfo[col].leftlines > 1 &&
colinfo[col].special.empty() && col > 0 &&
colinfo[col - 1].rightlines == 0 &&
colinfo[col - 1].special.empty()) {
++colinfo[col - 1].rightlines;
--colinfo[col].leftlines;
}
}
// Try to move extra rightlines to the next column
for (size_t col = 0; col < colinfo.size(); ++col) {
if (colinfo[col].rightlines > 1 &&
colinfo[col].special.empty() &&
col < colinfo.size() - 1 &&
colinfo[col + 1].leftlines == 0 &&
colinfo[col + 1].special.empty()) {
++colinfo[col + 1].leftlines;
--colinfo[col].rightlines;
}
}
// Move the lines and alignment settings to the special field if
// necessary
for (size_t col = 0; col < colinfo.size(); ++col)
fix_colalign(colinfo[col]);
}
/*!
* Parse hlines and similar stuff.
* \returns wether the token \p t was parsed
*/
bool parse_hlines(Parser & p, Token const & t, string & hlines,
bool is_long_tabular)
{
LASSERT(t.cat() == catEscape, return false);
if (t.cs() == "hline" || t.cs() == "toprule" || t.cs() == "midrule" ||
t.cs() == "bottomrule")
hlines += '\\' + t.cs();
else if (t.cs() == "cline")
hlines += "\\cline{" + p.verbatim_item() + '}';
else if (t.cs() == "cmidrule") {
// We cannot handle the \cmidrule(l){3-4} form
p.pushPosition();
p.skip_spaces(true);
bool const hasParentheses(p.getFullArg('(', ')').first);
p.popPosition();
if (hasParentheses)
return false;
hlines += "\\cmidrule{" + p.verbatim_item() + '}';
}
else if (t.cs() == "addlinespace") {
p.pushPosition();
p.skip_spaces(true);
bool const hasArgument(p.getFullArg('{', '}').first);
p.popPosition();
if (hasArgument)
hlines += "\\addlinespace{" + p.verbatim_item() + '}';
else
hlines += "\\addlinespace";
}
else if (is_long_tabular && t.cs() == "newpage")
hlines += "\\newpage";
else
return false;
return true;
}
/// Position in a row
enum RowPosition {
/// At the very beginning, before the first token
ROW_START,
/// After the first token and before any column token
IN_HLINES_START,
/// After the first column token. Comments and whitespace are only
/// treated as tokens in this position
IN_COLUMNS,
/// After the first non-column token at the end
IN_HLINES_END
};
/*!
* Parse table structure.
* We parse tables in a two-pass process: This function extracts the table
* structure (rows, columns, hlines etc.), but does not change the cell
* content. The cell content is parsed in a second step in handle_tabular().
*/
void parse_table(Parser & p, ostream & os, bool is_long_tabular,
RowPosition & pos, unsigned flags)
{
// table structure commands such as \hline
string hlines;
// comments that occur at places where we can't handle them
string comments;
while (p.good()) {
Token const & t = p.get_token();
#ifdef FILEDEBUG
debugToken(cerr, t, flags);
#endif
// comments and whitespace in hlines
switch (pos) {
case ROW_START:
case IN_HLINES_START:
case IN_HLINES_END:
if (t.cat() == catComment) {
if (t.cs().empty())
// line continuation
p.skip_spaces();
else
// We can't handle comments here,
// store them for later use
comments += t.asInput();
continue;
} else if (t.cat() == catSpace ||
t.cat() == catNewline) {
// whitespace is irrelevant here, we
// need to recognize hline stuff
p.skip_spaces();
continue;
}
break;
case IN_COLUMNS:
break;
}
// We need to handle structure stuff first in order to
// determine wether we need to output a HLINE separator
// before the row or not.
if (t.cat() == catEscape) {
if (parse_hlines(p, t, hlines, is_long_tabular)) {
switch (pos) {
case ROW_START:
pos = IN_HLINES_START;
break;
case IN_COLUMNS:
pos = IN_HLINES_END;
break;
case IN_HLINES_START:
case IN_HLINES_END:
break;
}
continue;
}
else if (t.cs() == "tabularnewline" ||
t.cs() == "\\" ||
t.cs() == "cr") {
if (t.cs() == "cr")
cerr << "Warning: Converting TeX "
"'\\cr' to LaTeX '\\\\'."
<< endl;
// stuff before the line break
os << comments << HLINE << hlines << HLINE
<< LINE;
//cerr << "hlines: " << hlines << endl;
hlines.erase();
comments.erase();
pos = ROW_START;
continue;
}
else if (is_long_tabular &&
(t.cs() == "endhead" ||
t.cs() == "endfirsthead" ||
t.cs() == "endfoot" ||
t.cs() == "endlastfoot")) {
hlines += t.asInput();
switch (pos) {
case IN_COLUMNS:
case IN_HLINES_END:
// these commands are implicit line
// breaks
os << comments << HLINE << hlines
<< HLINE << LINE;
hlines.erase();
comments.erase();
pos = ROW_START;
break;
case ROW_START:
pos = IN_HLINES_START;
break;
case IN_HLINES_START:
break;
}
continue;
}
}
// We need a HLINE separator if we either have no hline
// stuff at all and are just starting a row or if we just
// got the first non-hline token.
switch (pos) {
case ROW_START:
// no hline tokens exist, first token at row start
case IN_HLINES_START:
// hline tokens exist, first non-hline token at row
// start
os << hlines << HLINE << comments;
hlines.erase();
comments.erase();
pos = IN_COLUMNS;
break;
case IN_HLINES_END:
// Oops, there is still cell content or unsupported
// booktabs commands after hline stuff. The latter are
// moved to the cell, and the first does not work in
// LaTeX, so we ignore the hlines.
os << comments;
comments.erase();
if (support::contains(hlines, "\\hline") ||
support::contains(hlines, "\\cline") ||
support::contains(hlines, "\\newpage"))
cerr << "Ignoring '" << hlines
<< "' in a cell" << endl;
else
os << hlines;
hlines.erase();
pos = IN_COLUMNS;
break;
case IN_COLUMNS:
break;
}
// If we come here we have normal cell content
//
// cat codes
//
if (t.cat() == catMath) {
// we are inside some text mode thingy, so opening new math is allowed
Token const & n = p.get_token();
if (n.cat() == catMath) {
// TeX's $$...$$ syntax for displayed math
os << "\\[";
// This does only work because parse_math outputs TeX
parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
os << "\\]";
p.get_token(); // skip the second '$' token
} else {
// simple $...$ stuff
p.putback();
os << '$';
// This does only work because parse_math outputs TeX
parse_math(p, os, FLAG_SIMPLE, MATH_MODE);
os << '$';
}
}
else if (t.cat() == catSpace
|| t.cat() == catNewline
|| t.cat() == catLetter
|| t.cat() == catSuper
|| t.cat() == catSub
|| t.cat() == catOther
|| t.cat() == catActive
|| t.cat() == catParameter)
os << t.cs();
else if (t.cat() == catBegin) {
os << '{';
parse_table(p, os, is_long_tabular, pos,
FLAG_BRACE_LAST);
os << '}';
}
else if (t.cat() == catEnd) {
if (flags & FLAG_BRACE_LAST)
return;
cerr << "unexpected '}'\n";
}
else if (t.cat() == catAlign) {
os << TAB;
p.skip_spaces();
}
else if (t.cat() == catComment)
os << t.asInput();
else if (t.cs() == "(") {
os << "\\(";
// This does only work because parse_math outputs TeX
parse_math(p, os, FLAG_SIMPLE2, MATH_MODE);
os << "\\)";
}
else if (t.cs() == "[") {
os << "\\[";
// This does only work because parse_math outputs TeX
parse_math(p, os, FLAG_EQUATION, MATH_MODE);
os << "\\]";
}
else if (t.cs() == "begin") {
string const name = p.getArg('{', '}');
active_environments.push_back(name);
os << "\\begin{" << name << '}';
// treat the nested environment as a block, don't
// parse &, \\ etc, because they don't belong to our
// table if they appear.
os << p.ertEnvironment(name);
os << "\\end{" << name << '}';
active_environments.pop_back();
}
else if (t.cs() == "end") {
if (flags & FLAG_END) {
// eat environment name
string const name = p.getArg('{', '}');
if (name != active_environment())
p.error("\\end{" + name + "} does not match \\begin{"
+ active_environment() + "}");
return;
}
p.error("found 'end' unexpectedly");
}
else
os << t.asInput();
}
// We can have comments if the last line is incomplete
os << comments;
// We can have hline stuff if the last line is incomplete
if (!hlines.empty()) {
// this does not work in LaTeX, so we ignore it
cerr << "Ignoring '" << hlines << "' at end of tabular"
<< endl;
}
}
void handle_hline_above(RowInfo & ri, vector<CellInfo> & ci)
{
ri.topline = true;
for (size_t col = 0; col < ci.size(); ++col)
ci[col].topline = true;
}
void handle_hline_below(RowInfo & ri, vector<CellInfo> & ci)
{
ri.bottomline = true;
for (size_t col = 0; col < ci.size(); ++col)
ci[col].bottomline = true;
}
} // anonymous namespace
void handle_tabular(Parser & p, ostream & os, string const & name,
string const & tabularwidth, string const & halign,
Context & context)
{
bool const is_long_tabular(name == "longtable");
bool booktabs = false;
string tabularvalignment("middle");
string posopts = p.getOpt();
if (!posopts.empty()) {
// FIXME: Convert this to ERT
if (is_long_tabular)
cerr << "horizontal longtable positioning '"
<< posopts << "' ignored\n";
else if (posopts == "[t]")
tabularvalignment = "top";
else if (posopts == "[b]")
tabularvalignment = "bottom";
else
cerr << "vertical tabular positioning '"
<< posopts << "' ignored\n";
}
vector<ColInfo> colinfo;
// handle column formatting
handle_colalign(p, colinfo, ColInfo());
fix_colalign(colinfo);
// first scan of cells
// use table mode to keep it minimal-invasive
// not exactly what's TeX doing...
vector<string> lines;
ostringstream ss;
RowPosition rowpos = ROW_START;
parse_table(p, ss, is_long_tabular, rowpos, FLAG_END);
split(ss.str(), lines, LINE);
vector< vector<CellInfo> > cellinfo(lines.size());
vector<RowInfo> rowinfo(lines.size());
ltType endfirsthead;
ltType endhead;
ltType endfoot;
ltType endlastfoot;
// split into rows
//cerr << "// split into rows\n";
for (size_t row = 0; row < rowinfo.size();) {
// init row
cellinfo[row].resize(colinfo.size());
bool deletelastrow = false;
// split row
vector<string> dummy;
//cerr << "\n########### LINE: " << lines[row] << "########\n";
split(lines[row], dummy, HLINE);
// handle horizontal line fragments
// we do only expect this for a last line without '\\'
if (dummy.size() != 3) {
if ((dummy.size() != 1 && dummy.size() != 2) ||
row != rowinfo.size() - 1)
cerr << "unexpected dummy size: " << dummy.size()
<< " content: " << lines[row] << "\n";
dummy.resize(3);
}
lines[row] = dummy[1];
//cerr << "line: " << row << " above 0: " << dummy[0] << "\n";
//cerr << "line: " << row << " below 2: " << dummy[2] << "\n";
//cerr << "line: " << row << " cells 1: " << dummy[1] << "\n";
for (int i = 0; i <= 2; i += 2) {
//cerr << " reading from line string '" << dummy[i] << "'\n";
Parser p1(dummy[i]);
while (p1.good()) {
Token t = p1.get_token();
//cerr << "read token: " << t << "\n";
if (t.cs() == "hline" || t.cs() == "toprule" ||
t.cs() == "midrule" ||
t.cs() == "bottomrule") {
if (t.cs() != "hline")
booktabs = true;
if (i == 0) {
if (rowinfo[row].topline) {
if (row > 0) // extra bottomline above
handle_hline_below(rowinfo[row - 1], cellinfo[row - 1]);
else
cerr << "dropping extra "
<< t.cs() << '\n';
//cerr << "below row: " << row-1 << endl;
} else {
handle_hline_above(rowinfo[row], cellinfo[row]);
//cerr << "above row: " << row << endl;
}
} else {
//cerr << "below row: " << row << endl;
handle_hline_below(rowinfo[row], cellinfo[row]);
}
} else if (t.cs() == "cline" || t.cs() == "cmidrule") {
if (t.cs() == "cmidrule")
booktabs = true;
string arg = p1.verbatim_item();
//cerr << "read " << t.cs() << " arg: '" << arg << "'\n";
vector<string> cols;
split(arg, cols, '-');
cols.resize(2);
size_t from = convert<unsigned int>(cols[0]);
if (from == 0)
cerr << "Could not parse "
<< t.cs() << " start column."
<< endl;
else
// 1 based index -> 0 based
--from;
if (from >= colinfo.size()) {
cerr << t.cs() << " starts at "
"non existing column "
<< (from + 1) << endl;
from = colinfo.size() - 1;
}
size_t to = convert<unsigned int>(cols[1]);
if (to == 0)
cerr << "Could not parse "
<< t.cs() << " end column."
<< endl;
else
// 1 based index -> 0 based
--to;
if (to >= colinfo.size()) {
cerr << t.cs() << " ends at "
"non existing column "
<< (to + 1) << endl;
to = colinfo.size() - 1;
}
for (size_t col = from; col <= to; ++col) {
//cerr << "row: " << row << " col: " << col << " i: " << i << endl;
if (i == 0) {
rowinfo[row].topline = true;
cellinfo[row][col].topline = true;
} else {
rowinfo[row].bottomline = true;
cellinfo[row][col].bottomline = true;
}
}
} else if (t.cs() == "addlinespace") {
booktabs = true;
string const opt = p.next_token().cat() == catBegin ?
p.verbatim_item() : string();
if (i == 0) {
if (opt.empty())
rowinfo[row].top_space = "default";
else
rowinfo[row].top_space = translate_len(opt);
} else if (rowinfo[row].bottomline) {
if (opt.empty())
rowinfo[row].bottom_space = "default";
else
rowinfo[row].bottom_space = translate_len(opt);
} else {
if (opt.empty())
rowinfo[row].interline_space = "default";
else
rowinfo[row].interline_space = translate_len(opt);
}
} else if (t.cs() == "endhead") {
if (i == 0)
endhead.empty = true;
else
rowinfo[row].type = LT_HEAD;
for (int r = row - 1; r >= 0; --r) {
if (rowinfo[r].type != LT_NORMAL)
break;
rowinfo[r].type = LT_HEAD;
endhead.empty = false;
}
endhead.set = true;
} else if (t.cs() == "endfirsthead") {
if (i == 0)
endfirsthead.empty = true;
else
rowinfo[row].type = LT_FIRSTHEAD;
for (int r = row - 1; r >= 0; --r) {
if (rowinfo[r].type != LT_NORMAL)
break;
rowinfo[r].type = LT_FIRSTHEAD;
endfirsthead.empty = false;
}
endfirsthead.set = true;
} else if (t.cs() == "endfoot") {
if (i == 0)
endfoot.empty = true;
else
rowinfo[row].type = LT_FOOT;
for (int r = row - 1; r >= 0; --r) {
if (rowinfo[r].type != LT_NORMAL)
break;
rowinfo[r].type = LT_FOOT;
endfoot.empty = false;
}
endfoot.set = true;
} else if (t.cs() == "endlastfoot") {
if (i == 0)
endlastfoot.empty = true;
else
rowinfo[row].type = LT_LASTFOOT;
for (int r = row - 1; r >= 0; --r) {
if (rowinfo[r].type != LT_NORMAL)
break;
rowinfo[r].type = LT_LASTFOOT;
endlastfoot.empty = false;
}
endlastfoot.set = true;
} else if (t.cs() == "newpage") {
if (i == 0) {
if (row > 0)
rowinfo[row - 1].newpage = true;
else
// This does not work in LaTeX
cerr << "Ignoring "
"'\\newpage' "
"before rows."
<< endl;
} else
rowinfo[row].newpage = true;
} else {
cerr << "unexpected line token: " << t << endl;
}
}
}
// LyX ends headers and footers always with \tabularnewline.
// This causes one additional row in the output.
// If the last row of a header/footer is empty, we can work
// around that by removing it.
if (row > 1) {
RowInfo test = rowinfo[row-1];
test.type = LT_NORMAL;
if (lines[row-1].empty() && !test.special()) {
switch (rowinfo[row-1].type) {
case LT_FIRSTHEAD:
if (rowinfo[row].type != LT_FIRSTHEAD &&
rowinfo[row-2].type == LT_FIRSTHEAD)
deletelastrow = true;
break;
case LT_HEAD:
if (rowinfo[row].type != LT_HEAD &&
rowinfo[row-2].type == LT_HEAD)
deletelastrow = true;
break;
case LT_FOOT:
if (rowinfo[row].type != LT_FOOT &&
rowinfo[row-2].type == LT_FOOT)
deletelastrow = true;
break;
case LT_LASTFOOT:
if (rowinfo[row].type != LT_LASTFOOT &&
rowinfo[row-2].type == LT_LASTFOOT)
deletelastrow = true;
break;
case LT_NORMAL:
break;
}
}
}
if (deletelastrow) {
lines.erase(lines.begin() + (row - 1));
rowinfo.erase(rowinfo.begin() + (row - 1));
cellinfo.erase(cellinfo.begin() + (row - 1));
continue;
}
// split into cells
vector<string> cells;
split(lines[row], cells, TAB);
for (size_t col = 0, cell = 0; cell < cells.size();
++col, ++cell) {
//cerr << "cell content: '" << cells[cell] << "'\n";
if (col >= colinfo.size()) {
// This does not work in LaTeX
cerr << "Ignoring extra cell '"
<< cells[cell] << "'." << endl;
continue;
}
string cellcont = cells[cell];
// For decimal cells, ass the content of the second one to the first one
// of a pair.
if (colinfo[col].decimal_point != '\0' && colinfo[col].align == 'd' && cell < cells.size() - 1)
cellcont += colinfo[col].decimal_point + cells[cell + 1];
Parser p(cellcont);
p.skip_spaces();
//cells[cell] << "'\n";
if (p.next_token().cs() == "multirow") {
// We do not support the vpos arg yet.
if (p.hasOpt()) {
string const vpos = p.getArg('[', ']');
p.skip_spaces(true);
cerr << "Ignoring multirow's vpos arg '"
<< vpos << "'!" << endl;
}
// how many cells?
p.get_token();
size_t const ncells =
convert<unsigned int>(p.verbatim_item());
// We do not support the bigstrut arg yet.
if (p.hasOpt()) {
string const bs = p.getArg('[', ']');
p.skip_spaces(true);
cerr << "Ignoring multirow's bigstrut arg '"
<< bs << "'!" << endl;
}
// the width argument
string const width = p.getArg('{', '}');
// the vmove arg
string vmove;
if (p.hasOpt()) {
vmove = p.getArg('[', ']');
p.skip_spaces(true);
}
if (width != "*")
colinfo[col].width = width;
if (!vmove.empty())
cellinfo[row][col].mroffset = vmove;
cellinfo[row][col].multi = CELL_BEGIN_OF_MULTIROW;
cellinfo[row][col].leftlines = colinfo[col].leftlines;
cellinfo[row][col].rightlines = colinfo[col].rightlines;
cellinfo[row][col].mrxnum = ncells - 1;
ostringstream os2;
parse_text_in_inset(p, os2, FLAG_ITEM, false, context);
if (!cellinfo[row][col].content.empty()) {
// This may or may not work in LaTeX,
// but it does not work in LyX.
// FIXME: Handle it correctly!
cerr << "Moving cell content '"
<< cells[cell]
<< "' into a multirow cell. "
"This will probably not work."
<< endl;
}
cellinfo[row][col].content += os2.str();
} else if (p.next_token().cs() == "multicolumn") {
// how many cells?
p.get_token();
size_t const ncells =
convert<unsigned int>(p.verbatim_item());
// special cell properties alignment
vector<ColInfo> t;
handle_colalign(p, t, ColInfo());
p.skip_spaces(true);
ColInfo & ci = t.front();
// The logic of LyX for multicolumn vertical
// lines is too complicated to reproduce it
// here (see LyXTabular::TeXCellPreamble()).
// Therefore we simply put everything in the
// special field.
ci2special(ci);
cellinfo[row][col].multi = CELL_BEGIN_OF_MULTICOLUMN;
cellinfo[row][col].align = ci.align;
cellinfo[row][col].special = ci.special;
cellinfo[row][col].leftlines = ci.leftlines;
cellinfo[row][col].rightlines = ci.rightlines;
ostringstream os;
parse_text_in_inset(p, os, FLAG_ITEM, false, context);
if (!cellinfo[row][col].content.empty()) {
// This may or may not work in LaTeX,
// but it does not work in LyX.
// FIXME: Handle it correctly!
cerr << "Moving cell content '"
<< cells[cell]
<< "' into a multicolumn cell. "
"This will probably not work."
<< endl;
}
cellinfo[row][col].content += os.str();
// add dummy cells for multicol
for (size_t i = 0; i < ncells - 1; ++i) {
++col;
if (col >= colinfo.size()) {
cerr << "The cell '"
<< cells[cell]
<< "' specifies "
<< convert<string>(ncells)
<< " columns while the table has only "
<< convert<string>(colinfo.size())
<< " columns!"
<< " Therefore the surplus columns will be ignored."
<< endl;
break;
}
cellinfo[row][col].multi = CELL_PART_OF_MULTICOLUMN;
cellinfo[row][col].align = 'c';
}
} else if (col == 0 && colinfo.size() > 1 &&
is_long_tabular &&
p.next_token().cs() == "caption") {
// longtable caption support in LyX is a hack:
// Captions require a row of their own with
// the caption flag set to true, having only
// one multicolumn cell. The contents of that
// cell must contain exactly one caption inset
// and nothing else.
// Fortunately, the caption flag is only needed
// for tables with more than one column.
rowinfo[row].caption = true;
for (size_t c = 1; c < cells.size(); ++c) {
if (!cells[c].empty()) {
cerr << "Moving cell content '"
<< cells[c]
<< "' into the caption cell. "
"This will probably not work."
<< endl;
cells[0] += cells[c];
}
}
cells.resize(1);
cellinfo[row][col].align = colinfo[col].align;
cellinfo[row][col].multi = CELL_BEGIN_OF_MULTICOLUMN;
ostringstream os;
parse_text_in_inset(p, os, FLAG_CELL, false, context);
cellinfo[row][col].content += os.str();
// add dummy multicolumn cells
for (size_t c = 1; c < colinfo.size(); ++c)
cellinfo[row][c].multi = CELL_PART_OF_MULTICOLUMN;
} else {
bool turn = false;
int rotate = 0;
if (p.next_token().cs() == "begin") {
p.pushPosition();
p.get_token();
string const env = p.getArg('{', '}');
if (env == "sideways" || env == "turn") {
string angle = "90";
if (env == "turn") {
turn = true;
angle = p.getArg('{', '}');
}
active_environments.push_back(env);
p.ertEnvironment(env);
active_environments.pop_back();
p.skip_spaces();
if (!p.good() && support::isStrInt(angle))
rotate = convert<int>(angle);
}
p.popPosition();
}
cellinfo[row][col].leftlines = colinfo[col].leftlines;
cellinfo[row][col].rightlines = colinfo[col].rightlines;
cellinfo[row][col].align = colinfo[col].align;
ostringstream os;
if (rotate != 0) {
cellinfo[row][col].rotate = rotate;
p.get_token();
active_environments.push_back(p.getArg('{', '}'));
if (turn)
p.getArg('{', '}');
parse_text_in_inset(p, os, FLAG_END, false, context);
active_environments.pop_back();
preamble.registerAutomaticallyLoadedPackage("rotating");
} else {
parse_text_in_inset(p, os, FLAG_CELL, false, context);
}
cellinfo[row][col].content += os.str();
}
}
//cerr << "// handle almost empty last row what we have\n";
// handle almost empty last row
if (row && lines[row].empty() && row + 1 == rowinfo.size()) {
//cerr << "remove empty last line\n";
if (rowinfo[row].topline)
rowinfo[row - 1].bottomline = true;
for (size_t col = 0; col < colinfo.size(); ++col)
if (cellinfo[row][col].topline)
cellinfo[row - 1][col].bottomline = true;
rowinfo.pop_back();
}
++row;
}
// Now we have the table structure and content in rowinfo, colinfo
// and cellinfo.
// Unfortunately LyX has some limitations that we need to work around.
// Some post work
for (size_t row = 0; row < rowinfo.size(); ++row) {
for (size_t col = 0; col < cellinfo[row].size(); ++col) {
// Convert cells with special content to multicolumn cells
// (LyX ignores the special field for non-multicolumn cells).
if (cellinfo[row][col].multi == CELL_NORMAL &&
!cellinfo[row][col].special.empty())
cellinfo[row][col].multi = CELL_BEGIN_OF_MULTICOLUMN;
// Add multirow dummy cells
if (row > 1 && (cellinfo[row - 1][col].multi == CELL_PART_OF_MULTIROW
|| cellinfo[row - 1][col].multi == CELL_BEGIN_OF_MULTIROW)
&& cellinfo[row - 1][col].mrxnum > 0) {
// add dummy cells for multirow
cellinfo[row][col].multi = CELL_PART_OF_MULTIROW;
cellinfo[row][col].align = 'c';
cellinfo[row][col].mrxnum = cellinfo[row - 1][col].mrxnum - 1;
}
}
}
// Distribute lines from rows/columns to cells
// The code was stolen from convert_tablines() in lyx2lyx/lyx_1_6.py.
// Each standard cell inherits the settings of the corresponding
// rowinfo/colinfo. This works because all cells with individual
// settings were converted to multicolumn cells above.
// Each multicolumn cell inherits the settings of the rowinfo/colinfo
// corresponding to the first column of the multicolumn cell (default
// of the multicol package). This works because the special field
// overrides the line fields.
for (size_t row = 0; row < rowinfo.size(); ++row) {
for (size_t col = 0; col < cellinfo[row].size(); ++col) {
if (cellinfo[row][col].multi == CELL_NORMAL) {
cellinfo[row][col].topline = rowinfo[row].topline;
cellinfo[row][col].bottomline = rowinfo[row].bottomline;
cellinfo[row][col].leftlines = colinfo[col].leftlines;
cellinfo[row][col].rightlines = colinfo[col].rightlines;
} else if (cellinfo[row][col].multi == CELL_BEGIN_OF_MULTICOLUMN) {
size_t s = col + 1;
while (s < cellinfo[row].size() &&
cellinfo[row][s].multi == CELL_PART_OF_MULTICOLUMN)
s++;
if (s < cellinfo[row].size() &&
cellinfo[row][s].multi != CELL_BEGIN_OF_MULTICOLUMN)
cellinfo[row][col].rightlines = colinfo[col].rightlines;
if (col > 0 && cellinfo[row][col-1].multi == CELL_NORMAL)
cellinfo[row][col].leftlines = colinfo[col].leftlines;
} else if (cellinfo[row][col].multi == CELL_BEGIN_OF_MULTIROW) {
size_t s = row + 1;
while (s < rowinfo.size() &&
cellinfo[s][col].multi == CELL_PART_OF_MULTIROW)
s++;
if (s < cellinfo[row].size() &&
cellinfo[s][col].multi != CELL_BEGIN_OF_MULTIROW)
cellinfo[row][col].bottomline = rowinfo[row].bottomline;
if (row > 0 && cellinfo[row - 1][col].multi == CELL_NORMAL)
cellinfo[row][col].topline = rowinfo[row].topline;
}
}
}
if (booktabs)
preamble.registerAutomaticallyLoadedPackage("booktabs");
if (is_long_tabular)
preamble.registerAutomaticallyLoadedPackage("longtable");
//cerr << "// output what we have\n";
// output what we have
string const rotate = "0";
size_type cols = colinfo.size();
for (size_t col = 0; col < colinfo.size(); ++col) {
if (colinfo[col].decimal_point != '\0' && colinfo[col].align != 'd')
--cols;
}
os << "\n<lyxtabular version=\"3\" rows=\"" << rowinfo.size()
<< "\" columns=\"" << cols << "\">\n";
os << "<features"
<< write_attribute("rotate", rotate)
<< write_attribute("booktabs", booktabs)
<< write_attribute("islongtable", is_long_tabular);
if (is_long_tabular) {
os << write_attribute("firstHeadTopDL", endfirsthead.topDL)
<< write_attribute("firstHeadBottomDL", endfirsthead.bottomDL)
<< write_attribute("firstHeadEmpty", endfirsthead.empty)
<< write_attribute("headTopDL", endhead.topDL)
<< write_attribute("headBottomDL", endhead.bottomDL)
<< write_attribute("footTopDL", endfoot.topDL)
<< write_attribute("footBottomDL", endfoot.bottomDL)
<< write_attribute("lastFootTopDL", endlastfoot.topDL)
<< write_attribute("lastFootBottomDL", endlastfoot.bottomDL)
<< write_attribute("lastFootEmpty", endlastfoot.empty);
if (!halign.empty())
os << write_attribute("longtabularalignment", halign);
} else
os << write_attribute("tabularvalignment", tabularvalignment)
<< write_attribute("tabularwidth", tabularwidth);
os << ">\n";
//cerr << "// after header\n";
for (size_t col = 0; col < colinfo.size(); ++col) {
if (colinfo[col].decimal_point != '\0' && colinfo[col].align != 'd')
continue;
os << "<column alignment=\""
<< verbose_align(colinfo[col].align) << "\"";
if (colinfo[col].decimal_point != '\0')
os << " decimal_point=\"" << colinfo[col].decimal_point << "\"";
os << " valignment=\""
<< verbose_valign(colinfo[col].valign) << "\""
<< write_attribute("width", translate_len(colinfo[col].width))
<< write_attribute("special", colinfo[col].special)
<< ">\n";
}
//cerr << "// after cols\n";
for (size_t row = 0; row < rowinfo.size(); ++row) {
os << "<row"
<< write_attribute("topspace", rowinfo[row].top_space)
<< write_attribute("bottomspace", rowinfo[row].bottom_space)
<< write_attribute("interlinespace", rowinfo[row].interline_space)
<< write_attribute("endhead",
rowinfo[row].type == LT_HEAD)
<< write_attribute("endfirsthead",
rowinfo[row].type == LT_FIRSTHEAD)
<< write_attribute("endfoot",
rowinfo[row].type == LT_FOOT)
<< write_attribute("endlastfoot",
rowinfo[row].type == LT_LASTFOOT)
<< write_attribute("newpage", rowinfo[row].newpage)
<< write_attribute("caption", rowinfo[row].caption)
<< ">\n";
for (size_t col = 0; col < colinfo.size(); ++col) {
CellInfo const & cell = cellinfo[row][col];
if (colinfo[col].decimal_point != '\0' && colinfo[col].align != 'd')
// These are the second columns in a salign pair. Skip.
continue;
os << "<cell";
if ((cell.multi == CELL_BEGIN_OF_MULTICOLUMN
|| cell.multi == CELL_PART_OF_MULTICOLUMN)
&& colinfo[col].align != 'd')
os << " multicolumn=\"" << cell.multi << "\"";
if (cell.multi == CELL_BEGIN_OF_MULTIROW
|| cell.multi == CELL_PART_OF_MULTIROW)
os << " multirow=\"" << cell.multi << "\"";
os << " alignment=\"" << verbose_align(cell.align)
<< "\""
<< " valignment=\"" << verbose_valign(cell.valign)
<< "\""
<< write_attribute("topline", cell.topline)
<< write_attribute("bottomline", cell.bottomline)
<< write_attribute("leftline", cell.leftlines > 0)
<< write_attribute("rightline", cell.rightlines > 0)
<< write_attribute("rotate", cell.rotate)
<< write_attribute("mroffset", cell.mroffset);
//cerr << "\nrow: " << row << " col: " << col;
//if (cell.topline)
// cerr << " topline=\"true\"";
//if (cell.bottomline)
// cerr << " bottomline=\"true\"";
os << " usebox=\"none\""
<< write_attribute("width", translate_len(cell.width));
if (cell.multi != CELL_NORMAL)
os << write_attribute("special", cell.special);
os << ">"
<< "\n\\begin_inset Text\n"
<< cell.content
<< "\n\\end_inset\n"
<< "</cell>\n";
}
os << "</row>\n";
}
os << "</lyxtabular>\n";
}
// }])
} // namespace lyx
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