-/** The .tex to .lyx converter
- \author André Pönitz (2003)
+/**
+ * \file table.C
+ * 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.
*/
// {[(
using std::ostringstream;
using std::string;
using std::vector;
-using std::map;
-
-#include "mathed/math_gridinfo.h"
// filled in preamble.C
namespace {
+struct ColInfo
+{
+ ColInfo() : align('c'), rightline(false), leftline(false) {}
+ /// column alignment
+ char align;
+ /// column width
+ string width;
+ /// special column alignment
+ string special;
+ /// how many lines on the right?
+ int rightline;
+ /// a line on the left?
+ bool leftline;
+};
+
+
+/// 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
+};
+
+
+struct RowInfo
+{
+ RowInfo() : topline(false), bottomline(false), type(LT_NORMAL),
+ newpage(false) {}
+ /// horizontal line above
+ bool topline;
+ /// horizontal line below
+ bool bottomline;
+ /// These are for longtabulars only
+ /// row type (head, foot, firsthead etc.)
+ LTRowType type;
+ /// row for a pagebreak
+ bool newpage;
+};
+
+
+struct CellInfo
+{
+ CellInfo() : multi(0), align('n'), leftline(false), rightline(false),
+ topline(false), bottomline(false) {}
+ /// cell content
+ string content;
+ /// multicolumn flag
+ int multi;
+ /// cell alignment
+ char align;
+ /// do we have a line on the left?
+ bool leftline;
+ /// do we have a line on the right?
+ bool rightline;
+ /// do we have a line above?
+ bool topline;
+ /// do we have a line below?
+ bool bottomline;
+};
+
+
+/// translate a horizontal alignment (as stored in ColInfo and CellInfo) to LyX
+inline char const * verbose_align(char c)
+{
+ return c == 'c' ? "center" : c == 'r' ? "right" : c == 'l' ? "left" : "none";
+}
+
+
+// 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 + '"';
+}
+
+
int string2int(string const & s, int deflt = 0)
{
istringstream is(s);
}
-string read_hlines(Parser & p)
-{
- ostringstream os;
- p.skip_spaces();
- while (p.good()) {
- if (p.next_token().cs() == "hline") {
- p.get_token();
- os << "\\hline";
- } else if (p.next_token().cs() == "cline") {
- p.get_token();
- os << "\\cline{" << p.verbatim_item() << "}";
- } else
- break;
- p.skip_spaces();
- };
- //cerr << "read_hlines(), read: '" << os.str() << "'\n";
- //cerr << "read_hlines(), next token: " << p.next_token() << "\n";
- return os.str();
-}
-
-
/* rather brutish way to code table structure in a string:
\begin{tabular}{ccc}
gets "translated" to:
- 1 TAB 2 TAB 3 LINE
- \hline HLINE TAB 5 LINE
- 5 TAB 7 LINE
+ 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
*/
char const TAB = '\001';
char const HLINE = '\004';
+/// handle column specifications for tabulars and multicolumns
void handle_colalign(Parser & p, vector<ColInfo> & colinfo)
{
if (p.get_token().cat() != catBegin)
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 'c':
case 'l':
ci.special += t.character();
int const nargs = special_columns[t.character()];
for (int i = 0; i < nargs; ++i)
- ci.special += "{" + p.verbatim_item() + "}";
+ ci.special += "{" + p.verbatim_item() + "}";
//cerr << "handling special column '" << t << "' " << nargs
// << " '" << ci.special << "'\n";
colinfo.push_back(ci);
}
-} // anonymous namespace
+/*!
+ * 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)
+{
+ BOOST_ASSERT(t.cat() == catEscape);
+
+ if (t.cs() == "hline")
+ hlines += "\\hline";
+
+ else if (t.cs() == "cline")
+ hlines += "\\cline{" + p.verbatim_item() + '}';
+
+ else if (is_long_tabular && t.cs() == "newpage")
+ hlines += "\\newpage";
+
+ else
+ return false;
+
+ return true;
+}
-void parse_table(Parser & p, ostream & os, unsigned flags)
+/// 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();
cerr << "t: " << t << " flags: " << flags << "\n";
#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 after hline
+ // stuff. This does not work in LaTeX, so we ignore
+ // the hlines.
+ cerr << "Ignoring '" << hlines << "' in a cell"
+ << endl;
+ os << comments;
+ hlines.erase();
+ comments.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
+ // 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
}
}
+ else if (t.cat() == catSpace || t.cat() == catNewline)
+ os << t.cs();
+
else if (t.cat() == catLetter ||
- t.cat() == catSpace ||
t.cat() == catSuper ||
t.cat() == catSub ||
t.cat() == catOther ||
t.cat() == catActive ||
- t.cat() == catNewline ||
t.cat() == catParameter)
os << t.character();
else if (t.cat() == catBegin) {
os << '{';
- parse_table(p, os, FLAG_BRACE_LAST);
+ parse_table(p, os, is_long_tabular, pos,
+ FLAG_BRACE_LAST);
os << '}';
}
else if (t.cat() == catAlign) {
os << TAB;
+ p.skip_spaces();
}
- else if (t.cs() == "tabularnewline" || t.cs() == "\\") {
- // stuff before the line break
- // and look ahead for stuff after the line break
- os << HLINE << hlines << HLINE << LINE << read_hlines(p) << HLINE;
- hlines.erase();
- }
-
- else if (t.cs() == "hline")
- hlines += "\\hline";
-
- else if (t.cs() == "cline")
- hlines += "\\cline{" + p.verbatim_item() + '}';
-
else if (t.cat() == catComment)
- handle_comment(p);
+ os << t.asInput();
else if (t.cs() == "(") {
os << "\\(";
else if (t.cs() == "begin") {
string const name = p.getArg('{', '}');
active_environments.push_back(name);
- parse_table(p, os, FLAG_END);
+ os << "\\begin{" << name << '}';
+ if (is_math_env(name)) {
+ parse_math(p, os, FLAG_END, MATH_MODE);
+ } else {
+ parse_table(p, os, is_long_tabular, pos,
+ FLAG_END);
+ }
+ os << "\\end{" << name << '}';
+ active_environments.pop_back();
}
else if (t.cs() == "end") {
if (name != active_environment())
p.error("\\end{" + name + "} does not match \\begin{"
+ active_environment() + "}");
- active_environments.pop_back();
return;
}
p.error("found 'end' unexpectedly");
}
- else
+ 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_tabular(Parser & p, ostream & os,
- LyXTextClass const & textclass)
+} // anonymous namespace
+
+
+void handle_tabular(Parser & p, ostream & os, bool is_long_tabular,
+ Context & context)
{
string posopts = p.getOpt();
- if (posopts.size())
- cerr << "vertical tabular positioning '" << posopts << "' ignored\n";
+ if (!posopts.empty()) {
+ if (is_long_tabular)
+ cerr << "horizontal longtable";
+ else
+ cerr << "vertical tabular";
+ cerr << " positioning '" << posopts << "' ignored\n";
+ }
vector<ColInfo> colinfo;
// handle column formatting
handle_colalign(p, colinfo);
- // handle initial hlines
-
// first scan of cells
// use table mode to keep it minimal-invasive
// not exactly what's TeX doing...
vector<string> lines;
ostringstream ss;
- ss << read_hlines(p) << HLINE; // handle initial hlines
- parse_table(p, ss, FLAG_END);
+ 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());
-
+
// split into rows
//cerr << "// split into rows\n";
for (size_t row = 0; row < rowinfo.size(); ++row) {
// init row
cellinfo[row].resize(colinfo.size());
- // split row
+ // 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)
+ if ((dummy.size() != 1 && dummy.size() != 2) ||
+ row != rowinfo.size() - 1)
cerr << "unexpected dummy size: " << dummy.size()
<< " content: " << lines[row] << "\n";
dummy.resize(3);
//cerr << "line: " << row << " below 2: " << dummy[2] << "\n";
//cerr << "line: " << row << " cells 1: " << dummy[1] << "\n";
- for (int i = 0; i <= 2; i += 2) {
+ for (int i = 0; i <= 2; i += 2) {
//cerr << " reading from line string '" << dummy[i] << "'\n";
Parser p1(dummy[i]);
while (p1.good()) {
handle_hline_above(rowinfo[row], cellinfo[row]);
//cerr << "above row: " << row << endl;
}
- } else {
+ } else {
//cerr << "below row: " << row << endl;
handle_hline_below(rowinfo[row], cellinfo[row]);
}
split(arg, t, '-');
t.resize(2);
size_t from = string2int(t[0]) - 1;
- size_t to = string2int(t[1]);
- for (size_t col = from; col < to; ++col) {
+ if (from >= colinfo.size()) {
+ cerr << "cline starts at non "
+ "existing column "
+ << (from + 1) << endl;
+ from = colinfo.size() - 1;
+ }
+ size_t to = string2int(t[1]) - 1;
+ if (to >= colinfo.size()) {
+ cerr << "cline 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].bottomline = true;
}
}
+ } else if (t.cs() == "endhead") {
+ if (i > 0)
+ 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;
+ }
+ } else if (t.cs() == "endfirsthead") {
+ if (i > 0)
+ 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;
+ }
+ } else if (t.cs() == "endfoot") {
+ if (i > 0)
+ 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;
+ }
+ } else if (t.cs() == "endlastfoot") {
+ if (i > 0)
+ 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;
+ }
+ } else if (t.cs() == "newpage") {
+ if (i == 0) {
+ if (row > 0)
+ rowinfo[row - 1].newpage = true;
+ else
+ cerr << "Ignoring "
+ "'\\newpage' "
+ "before rows."
+ << endl;
+ } else
+ rowinfo[row].newpage = true;
} else {
cerr << "unexpected line token: " << t << endl;
}
// split into cells
vector<string> cells;
split(lines[row], cells, TAB);
+ // Has the last multicolumn cell a rightline?
+ bool last_rightline = false;
for (size_t col = 0, cell = 0;
cell < cells.size() && col < colinfo.size(); ++col, ++cell) {
//cerr << "cell content: '" << cells[cell] << "'\n";
Parser p(cells[cell]);
- p.skip_spaces();
+ p.skip_spaces();
//cells[cell] << "'\n";
if (p.next_token().cs() == "multicolumn") {
// how many cells?
p.get_token();
size_t const ncells = string2int(p.verbatim_item());
- // special cell properties alignment
+ // special cell properties alignment
vector<ColInfo> t;
handle_colalign(p, t);
cellinfo[row][col].multi = 1;
cellinfo[row][col].align = t.front().align;
- cellinfo[row][col].content = parse_text(p, FLAG_ITEM, false, textclass);
- cellinfo[row][col].leftline |= t.front().leftline;
- cellinfo[row][col].rightline |= t.front().rightline;
+ ostringstream os;
+ parse_text_in_inset(p, os, FLAG_ITEM, false, context);
+ cellinfo[row][col].content = os.str();
+
+ // multicolumn cells are tricky: This
+ // \multicolumn{2}{|c|}{col1-2}&
+ // \multicolumn{2}{|c|}{col3-4} "\\"
+ // gives | col1-2 | col3-4 | and not
+ // | col1-2 || col3-4 |
+ // So:
+ if (last_rightline && t.front().leftline) {
+ t.front().leftline = false;
+ }
+ last_rightline = t.front().rightline;
+
+ // multicolumn lines override normal cell lines
+ cellinfo[row][col].leftline = t.front().leftline;
+ cellinfo[row][col].rightline = t.front().rightline;
// add dummy cells for multicol
for (size_t i = 0; i < ncells - 1 && col < colinfo.size(); ++i) {
if (t.front().rightline > 1)
cellinfo[row][col + 1].leftline = true;
- } else {
+ } else {
// FLAG_END is a hack, we need to read all of it
- cellinfo[row][col].content = parse_text(p, FLAG_END, false, textclass);
+ cellinfo[row][col].leftline = colinfo[col].leftline;
+ cellinfo[row][col].rightline = colinfo[col].rightline;
+ cellinfo[row][col].align = colinfo[col].align;
+ ostringstream os;
+ parse_text_in_inset(p, os, FLAG_CELL, false, context);
+ cellinfo[row][col].content = os.str();
+ last_rightline = false;
}
}
//cerr << "// output what we have\n";
// output what we have
- os << "<lyxtabular version=\"3\" rows=\"" << rowinfo.size()
- << "\" columns=\"" << colinfo.size() << "\">\n"
- << "<features>\n";
+ os << "\n<lyxtabular version=\"3\" rows=\"" << rowinfo.size()
+ << "\" columns=\"" << colinfo.size() << "\">\n";
+ os << "<features"
+ << write_attribute("islongtable", is_long_tabular)
+ << ">\n";
//cerr << "// after header\n";
for (size_t col = 0; col < colinfo.size(); ++col) {
- os << "<column alignment=\"" << colinfo[col].align << "\"";
- if (colinfo[col].rightline)
- os << " rightline=\"true\"";
- if (colinfo[col].leftline)
- os << " leftline=\"true\"";
- if (colinfo[col].special.size())
- os << " special=\"" << colinfo[col].special << "\"";
- os << " valignment=\"top\"";
- os << " width=\"" << colinfo[col].width << "\"";
- os << ">\n";
+ os << "<column alignment=\""
+ << verbose_align(colinfo[col].align) << "\""
+ << " valignment=\"top\""
+ << write_attribute("leftline", colinfo[col].leftline)
+ << write_attribute("rightline", colinfo[col].rightline)
+ << write_attribute("width", 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";
- if (rowinfo[row].topline)
- os << " topline=\"true\"";
- if (rowinfo[row].bottomline)
- os << " bottomline=\"true\"";
- os << ">\n";
+ os << "<row"
+ << write_attribute("topline", rowinfo[row].topline)
+ << write_attribute("bottomline", rowinfo[row].bottomline)
+ << 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)
+ << ">\n";
for (size_t col = 0; col < colinfo.size(); ++col) {
CellInfo const & cell = cellinfo[row][col];
os << "<cell";
if (cell.multi)
os << " multicolumn=\"" << cell.multi << "\"";
- if (cell.leftline)
- os << " leftline=\"true\"";
- if (cell.rightline)
- os << " rightline=\"true\"";
- if (cell.topline)
- os << " topline=\"true\"";
- if (cell.bottomline)
- os << " bottomline=\"true\"";
+ os << " alignment=\"" << verbose_align(cell.align)
+ << "\""
+ << " valignment=\"top\""
+ << write_attribute("topline", cell.topline)
+ << write_attribute("bottomline", cell.bottomline)
+ << write_attribute("leftline", cell.leftline)
+ << write_attribute("rightline", cell.rightline);
//cerr << "\nrow: " << row << " col: " << col;
//if (cell.topline)
// cerr << " topline=\"true\"";
//if (cell.bottomline)
// cerr << " bottomline=\"true\"";
- os << " alignment=\"" << verbose_align(cell.align) << "\""
- << " valignment=\"top\""
- << " usebox=\"none\""
- << ">"
- << "\n\\begin_inset Text"
- << "\n\n\\layout Standard\n\n"
+ os << " usebox=\"none\""
+ << ">"
+ << "\n\\begin_inset Text\n"
<< cell.content
- << "\n\\end_inset\n\n"
+ << "\n\\end_inset\n"
<< "</cell>\n";
}
os << "</row>\n";
}
-
+
os << "</lyxtabular>\n";
}
projects / lyx.git / blobdiff