public boolean parse(BashPsiBuilder builder) {
/* Grammar:
WHILE compound_list DO compound_list DONE
UNTIL compound_list DO compound_list DONE
*/
final PsiBuilder.Marker loop = builder.mark();
builder.advanceLexer();
if (!Parsing.list.parseCompoundList(builder, false)) {
loop.drop();
return false;
}
if (!ParserUtil.checkNextOrError(
builder, ShellCommandParsing.DO_KEYWORD, "parser.shell.expectedDo", loop)) {
return false;
}
if (!Parsing.list.parseCompoundList(builder, true)) {
loop.drop();
return false;
}
if (!ParserUtil.checkNextOrError(
builder, ShellCommandParsing.DONE_KEYWORD, "parser.shell.expectedDone", loop)) {
return false;
}
loop.done(commandMarker);
return true;
}
public boolean isValid(BashPsiBuilder builder) {
return builder.getTokenType() == startToken;
}