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44cd0fc9a1
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7862 a592a061-630c-0410-9148-cb99ea01b6c8
156 lines
3.2 KiB
C
156 lines
3.2 KiB
C
/**
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* \file insetcommandparams.C
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Angus Leeming
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "insetcommandparams.h"
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#include "debug.h"
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#include "lyxlex.h"
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using std::string;
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using std::endl;
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using std::ostream;
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InsetCommandParams::InsetCommandParams()
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{}
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InsetCommandParams::InsetCommandParams(string const & n,
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string const & c,
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string const & o)
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: cmdname(n), contents(c), options(o), preview_(false)
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{}
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void InsetCommandParams::scanCommand(string const & cmd)
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{
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string tcmdname, toptions, tcontents;
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if (cmd.empty()) return;
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enum { WS, CMDNAME, OPTION, CONTENT } state = WS;
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// Used to handle things like \command[foo[bar]]{foo{bar}}
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int nestdepth = 0;
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for (string::size_type i = 0; i < cmd.length(); ++i) {
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char c = cmd[i];
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if ((state == CMDNAME && c == ' ') ||
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(state == CMDNAME && c == '[') ||
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(state == CMDNAME && c == '{')) {
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state = WS;
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}
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if ((state == OPTION && c == ']') ||
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(state == CONTENT && c == '}')) {
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if (nestdepth == 0) {
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state = WS;
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} else {
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--nestdepth;
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}
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}
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if ((state == OPTION && c == '[') ||
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(state == CONTENT && c == '{')) {
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++nestdepth;
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}
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switch (state) {
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case CMDNAME: tcmdname += c; break;
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case OPTION: toptions += c; break;
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case CONTENT: tcontents += c; break;
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case WS:
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if (c == '\\') {
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state = CMDNAME;
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} else if (c == '[') {
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state = OPTION;
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nestdepth = 0; // Just to be sure
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} else if (c == '{') {
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state = CONTENT;
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nestdepth = 0; // Just to be sure
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}
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break;
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}
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}
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// Don't mess with this.
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if (!tcmdname.empty()) setCmdName(tcmdname);
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if (!toptions.empty()) setOptions(toptions);
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if (!tcontents.empty()) setContents(tcontents);
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if (lyxerr.debugging(Debug::PARSER))
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lyxerr << "Command <" << cmd
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<< "> == <" << getCommand()
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<< "> == <" << getCmdName()
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<< '|' << getContents()
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<< '|' << getOptions() << '>' << endl;
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}
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void InsetCommandParams::read(LyXLex & lex)
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{
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string token;
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if (lex.eatLine()) {
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token = lex.getString();
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scanCommand(token);
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} else {
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lex.printError("InsetCommand: Parse error: `$$Token'");
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}
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while (lex.isOK()) {
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lex.next();
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token = lex.getString();
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if (token == "\\end_inset")
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break;
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if (token == "preview") {
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lex.next();
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preview_ = lex.getBool();
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}
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}
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if (token != "\\end_inset") {
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lex.printError("Missing \\end_inset at this point. "
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"Read: `$$Token'");
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}
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}
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void InsetCommandParams::write(ostream & os) const
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{
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os << "LatexCommand " << getCommand() << "\n";
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}
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string const InsetCommandParams::getCommand() const
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{
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string s;
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if (!getCmdName().empty()) s += '\\' + getCmdName();
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if (!getOptions().empty()) s += '[' + getOptions() + ']';
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s += '{' + getContents() + '}';
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return s;
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}
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bool operator==(InsetCommandParams const & o1,
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InsetCommandParams const & o2)
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{
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return o1.getCmdName() == o2.getCmdName()
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&& o1.getContents() == o2.getContents()
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&& o1.getOptions() == o2.getOptions()
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&& o1.preview() == o2.preview();
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}
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bool operator!=(InsetCommandParams const & o1,
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InsetCommandParams const & o2)
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{
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return !(o1 == o2);
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}
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