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tex2lyx: towards beamer overlay argument support.

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Implemented: Overlay and standard overlay arguments for commands
and environments.

Still missing:
* List item overlay
* itemcommand overlay (\overprint)
* overlay via LatexParam (e.g., Flex:ArticleMode)

Needs fixing:
* General list argument (\begin{itemize}[arg])
* nested content in a frame with no title (empty par)
This commit is contained in:
Juergen Spitzmueller 2018-03-12 14:50:19 +01:00
parent 8725614e3f
commit 949de66956
4 changed files with 52 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/tex2lyx/Parser.h
View File

@ -67,7 +67,8 @@ enum {
FLAG_OPTION = 1 << 11, // read [...] style option
FLAG_BRACED = 1 << 12, // read {...} style argument
FLAG_CELL = 1 << 13, // read table cell
FLAG_TABBING = 1 << 14 // We are inside a tabbing environment
FLAG_TABBING = 1 << 14, // We are inside a tabbing environment
FLAG_RDELIM = 1 << 15, // next right delimiter ends the parsing
};

7
src/tex2lyx/TODO.txt
View File

@ -52,10 +52,6 @@ Format LaTeX feature LyX feature
415 automatic undertilde loading \use_package undertilde
443 unicode-math.sty InsetMath*
448
451 beamer overlay arguments InsetArgument
\command<arg>, \begin{env}<arg>
452 beamer block arguments InsetArgument
\begin{block}<overlay>{title}
453 automatic stmaryrd loading \use_package stmaryrd
454 beamer overprint environment InsetArgument, layout Overprint
\begin{overprint}[maxlength]
@ -64,9 +60,6 @@ Format LaTeX feature LyX feature
455 beamer frametitle command \begin_layout FrameTitle
\frametitle<overlay>[short]{long}
457 automatic stackrel loading \use_package stackrel
459 beamer: \begin{frame}, \begin_layout Frame
\begin{frame}[plain], \begin_layout PlainFrame
\begin{frame}[fragile] \begin_layout FragileFrame
466 Powerdot updates:
\pause[] layout Pause
\onslide{}{} InsetFlex, InsetArgument

5
src/tex2lyx/tex2lyx.h
View File

@ -48,7 +48,7 @@ extern std::string rgbcolor2code(std::string const & name);
std::string translate_len(std::string const &);
void parse_text(Parser & p, std::ostream & os, unsigned flags, bool outer,
Context & context);
Context & context, std::string const rdelim = std::string());
void check_comment_bib(std::ostream & os, Context & context);
void fix_child_filename(std::string & name);
@ -67,7 +67,8 @@ std::string find_file(std::string const & name, std::string const & path,
*/
void parse_text_in_inset(Parser & p, std::ostream & os, unsigned flags,
bool outer, Context const & context,
InsetLayout const * layout = 0);
InsetLayout const * layout = 0,
std::string const rdelim = std::string());
/// Guess document language from \p p if CJK is used.
/// \p lang is used for all non-CJK contents.

62
src/tex2lyx/text.cpp
View File

@ -54,7 +54,8 @@ void output_arguments(ostream &, Parser &, bool, bool, bool, Context &,
void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
Context const & context, InsetLayout const * layout)
Context const & context, InsetLayout const * layout,
string const rdelim)
{
bool const forcePlainLayout =
layout ? layout->forcePlainLayout() : false;
@ -66,7 +67,7 @@ void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
if (layout)
output_arguments(os, p, outer, false, false, newcontext,
layout->latexargs());
parse_text(p, os, flags, outer, newcontext);
parse_text(p, os, flags, outer, newcontext, rdelim);
if (layout)
output_arguments(os, p, outer, false, true, newcontext,
layout->postcommandargs());
@ -77,14 +78,15 @@ void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
namespace {
void parse_text_in_inset(Parser & p, ostream & os, unsigned flags, bool outer,
Context const & context, string const & name)
Context const & context, string const & name,
string const rdelim = string())
{
InsetLayout const * layout = 0;
DocumentClass::InsetLayouts::const_iterator it =
context.textclass.insetLayouts().find(from_ascii(name));
if (it != context.textclass.insetLayouts().end())
layout = &(it->second);
parse_text_in_inset(p, os, flags, outer, context, layout);
parse_text_in_inset(p, os, flags, outer, context, layout, rdelim);
}
/// parses a paragraph snippet, useful for example for \\emph{...}
@ -764,7 +766,15 @@ void output_arguments(ostream & os, Parser & p, bool outer, bool need_layout, bo
if (lait->second.mandatory) {
if (p.next_token().cat() != catBegin)
break;
p.get_token(); // eat '{'
string ldelim = to_utf8(lait->second.ldelim);
string rdelim = to_utf8(lait->second.rdelim);
if (ldelim.empty())
ldelim = "{";
if (rdelim.empty())
rdelim = "}";
p.get_token(); // eat ldelim
if (ldelim.size() > 1)
p.get_token(); // eat ldelim
if (need_layout) {
context.check_layout(os);
need_layout = false;
@ -773,13 +783,24 @@ void output_arguments(ostream & os, Parser & p, bool outer, bool need_layout, bo
if (post)
os << "post:";
os << i << "\nstatus collapsed\n\n";
parse_text_in_inset(p, os, FLAG_BRACE_LAST, outer, context);
parse_text_in_inset(p, os, FLAG_RDELIM, outer, context, 0, rdelim);
end_inset(os);
} else {
if (p.next_token().cat() == catEscape ||
p.next_token().character() != '[')
string ldelim = to_utf8(lait->second.ldelim);
string rdelim = to_utf8(lait->second.rdelim);
if (ldelim.empty())
ldelim = "[";
if (rdelim.empty())
rdelim = "]";
string tok = p.next_token().asInput();
// we only support delimiters with max 2 chars for now.
if (ldelim.size() > 1)
tok += p.next_next_token().asInput();
if (p.next_token().cat() == catEscape || tok != ldelim)
continue;
p.get_token(); // eat '['
p.get_token(); // eat ldelim
if (ldelim.size() > 1)
p.get_token(); // eat ldelim
if (need_layout) {
context.check_layout(os);
need_layout = false;
@ -788,7 +809,7 @@ void output_arguments(ostream & os, Parser & p, bool outer, bool need_layout, bo
if (post)
os << "post:";
os << i << "\nstatus collapsed\n\n";
parse_text_in_inset(p, os, FLAG_BRACK_LAST, outer, context);
parse_text_in_inset(p, os, FLAG_RDELIM, outer, context, 0, rdelim);
end_inset(os);
}
eat_whitespace(p, os, context, false);
@ -2060,10 +2081,11 @@ void parse_environment(Parser & p, ostream & os, bool outer,
}
context.check_deeper(os);
// handle known optional and required arguments
// Unfortunately LyX can't handle arguments of list arguments (bug 7468):
// It is impossible to place anything after the environment name,
// but before the first \\item.
if (context.layout->latextype == LATEX_ENVIRONMENT)
// FIXME: for item environments, this is currently
// placed wrongly (in an empty paragraph). It has to go to
// the first \item par instead.
if (context.layout->latextype == LATEX_ENVIRONMENT
|| context.layout->latextype == LATEX_ITEM_ENVIRONMENT)
output_arguments(os, p, outer, false, false, context,
context.layout->latexargs());
parse_text(p, os, FLAG_END, outer, context);
@ -2583,7 +2605,7 @@ void fix_child_filename(string & name)
void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
Context & context)
Context & context, string const rdelim)
{
Layout const * newlayout = 0;
InsetLayout const * newinsetlayout = 0;
@ -2660,6 +2682,16 @@ void parse_text(Parser & p, ostream & os, unsigned flags, bool outer,
return;
if (t.cat() == catEnd && (flags & FLAG_BRACE_LAST))
return;
string tok = t.asInput();
// we only support delimiters with max 2 chars for now.
if (rdelim.size() > 1)
tok += p.next_token().asInput();
if (t.cat() != catEscape && !rdelim.empty()
&& tok == rdelim && (flags & FLAG_RDELIM)) {
if (rdelim.size() > 1)
p.get_token(); // eat rdelim
return;
}
// If there is anything between \end{env} and \begin{env} we
// don't need to output a separator.