lyx_mirror/src/insets/insetcommand.C
Jürgen Vigna 666140b7f2 Few more update text-inset issues + some fixes, see ChangeLog.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@859 a592a061-630c-0410-9148-cb99ea01b6c8
2000-07-05 14:57:48 +00:00

169 lines
3.4 KiB
C

/* This file is part of
* ======================================================
*
* LyX, The Document Processor
*
* Copyright 1995 Matthias Ettrich
* Copyright 1995-2000 The LyX Team.
*
* ====================================================== */
#include <config.h>
#ifdef __GNUG__
#pragma implementation
#endif
#include "insetcommand.h"
#include "debug.h"
#include "Painter.h"
using std::ostream;
using std::endl;
InsetCommand::InsetCommand()
{
}
InsetCommand::InsetCommand(string const & cmd, string const & arg,
string const & opt)
: cmdname(cmd), options(opt), contents(arg)
{
}
// In lyxf3 this will be just LaTeX
void InsetCommand::Write(Buffer const *, ostream & os) const
{
os << "LatexCommand " << getCommand() << "\n";
}
void InsetCommand::scanCommand(string const & cmd)
{
string tcmdname, toptions, tcontents;
if (cmd.empty()) return;
enum { WS, CMDNAME, OPTION, CONTENT } state = WS;
// Used to handle things like \command[foo[bar]]{foo{bar}}
int nestdepth = 0;
for (string::size_type i = 0; i < cmd.length(); ++i) {
char c = cmd[i];
if ((state == CMDNAME && c == ' ') ||
(state == CMDNAME && c == '[') ||
(state == CMDNAME && c == '{')) {
state = WS;
}
if ((state == OPTION && c == ']') ||
(state == CONTENT && c == '}')) {
if (nestdepth == 0) {
state = WS;
} else {
--nestdepth;
}
}
if ((state == OPTION && c == '[') ||
(state == CONTENT && c == '{')) {
++nestdepth;
}
switch (state) {
case CMDNAME: tcmdname += c; break;
case OPTION: toptions += c; break;
case CONTENT: tcontents += c; break;
case WS:
if (c == '\\') {
state = CMDNAME;
} else if (c == '[') {
state = OPTION;
nestdepth = 0; // Just to be sure
} else if (c == '{') {
state = CONTENT;
nestdepth = 0; // Just to be sure
}
break;
}
}
// Don't mess with this.
if (!tcmdname.empty()) cmdname = tcmdname;
if (!toptions.empty()) options = toptions;
if (!tcontents.empty()) setContents(tcontents);
// setContents is overloaded in InsetInclude
if (lyxerr.debugging(Debug::PARSER))
lyxerr << "Command <" << cmd
<< "> == <" << getCommand()
<< "> == <" << getCmdName()
<< '|' << getContents()
<< '|' << getOptions() << '>' << endl;
}
// This function will not be necessary when lyx3
void InsetCommand::Read(Buffer const *, LyXLex & lex)
{
string token;
if (lex.EatLine()) {
token = lex.GetString();
scanCommand(token);
} else
lex.printError("InsetCommand: Parse error: `$$Token'");
while (lex.IsOK()) {
lex.nextToken();
token = lex.GetString();
if (token == "\\end_inset")
break;
}
if (token != "\\end_inset") {
lex.printError("Missing \\end_inset at this point. "
"Read: `$$Token'");
}
}
int InsetCommand::Latex(Buffer const *, ostream & os, bool /*fragile*/, bool/*fs*/) const
{
os << getCommand();
return 0;
}
int InsetCommand::Ascii(Buffer const *, ostream &) const
{
return 0;
}
int InsetCommand::Linuxdoc(Buffer const *, ostream &) const
{
return 0;
}
int InsetCommand::DocBook(Buffer const *, ostream &) const
{
return 0;
}
Inset * InsetCommand::Clone() const
{
return new InsetCommand(cmdname, contents, options);
}
string InsetCommand::getCommand() const
{
string s;
if (!cmdname.empty()) s += "\\"+cmdname;
if (!options.empty()) s += "["+options+']';
s += "{"+contents+'}';
return s;
}