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-.TH dlg 1 "April 1994" "DLG" "PCCTS Manual Pages"
-.SH NAME
-dlg \- DFA Lexical Analyzer Generator
-.SH SYNTAX
-.LP
-\fBdlg\fR [\fIoptions\fR] \fIlexical_spec\fR [\fIoutput_file\fR]
-.SH DESCRIPTION
-.B dlg
-is a tool that produces fast deterministic finite automata for recognizing
-regular expressions in input.
-.SH OPTIONS
-.IP "\fB-CC\fR"
-Generate C++ output.  The \fIoutput_file\fP is not specified in this
-case.
-.IP "\fB-C\fR[\fP level\fR]
-Where \fPlevel\fR is the compression level used.  0 indications no
-compression, 1 removes all unused characters from the transition from table,
-and 2 maps equivalent characters into the same character classes.  It is
-suggested that level -C2 is used, since it will significantly reduce the size
-of the dfa produced for lexical analyzer.
-.IP "\fB-m\fP
-Produces the header file for the lexical mode with a name other than
-the default name of "mode.h".
-.IP \fB-i\fP
-An interactive, or as interactive as possible, parser is produced.  A character
-is only obtained when required to decide which state to go to.  Some care
-must be taken to obtain accept states that do not require look ahead at the
-next character to determine if that is the stop state.  Any regular expression
-with a Kleene closure at the end is guaranteed to require another character
-of look ahead.
-.IP "\fB-cl\fP class
-Specify a class name for DLG to generate.  The default is DLGLexer.
-'class' will be a subclass of DLGLexerBase; only used for -CC.
-.IP \fB-ci\fP
-The automaton will treat upper and lower case characters identically.
-This is accomplished in the automaton; the characters in the lexical
-buffer are unmodified.
-.IP \fB-cs\fP
-Upper and lower case characters are treated as distinct.  This is the
-default.
-.IP "\fB-o\fP dir
-Directory where output files should go (default=".").  This is very
-nice for keeping the source directory clear of ANTLR and DLG spawn.
-.IP \fB-Wambiguity\fP
-Warns if more than one regular expression could match the same character
-sequence.  The warnings give the numbers of the expressions in the dlg
-lexical specification file.  The numbering of the expressions starts at one.
-Multiple warnings may be print for the same expressions.
-.IP \-
-Used in place of file names to get input from standard in or send output
-to standard out.
-.SH "SPECIAL CONSIDERATIONS"
-.PP
-\fIDlg\fP works...  we think.  There is no implicit guarantee of
-anything.  We reserve no \fBlegal\fP rights to the software known as
-the Purdue Compiler Construction Tool Set (PCCTS) \(em PCCTS is in the
-public domain.  An individual or company may do whatever they wish
-with source code distributed with PCCTS or the code generated by
-PCCTS, including the incorporation of PCCTS, or its output, into
-commercial software.  We encourage users to develop software with
-PCCTS.  However, we do ask that credit is given to us for developing
-PCCTS.  By "credit", we mean that if you incorporate our source code
-into one of your programs (commercial product, research project, or
-otherwise) that you acknowledge this fact somewhere in the
-documentation, research report, etc...  If you like PCCTS and have
-developed a nice tool with the output, please mention that you
-developed it using PCCTS.  As long as these guidelines are followed, we
-expect to continue enhancing this system and expect to make other
-tools available as they are completed.
-.SH FILES
-.B mode.h
-,
-.B dlgauto.h
-,
-.B dlgdef.h
-.SH SEE ALSO
-.BR antlr (1),
-.BR pccts (1)
-.SH BUGS