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Annotation of lucent/sys/man/1/lex, revision 1.1

1.1     ! root        1: .TH LEX 1
        !             2: .SH NAME
        !             3: lex \- generator of lexical analysis programs
        !             4: .SH SYNOPSIS
        !             5: .B lex
        !             6: [
        !             7: .B -tvn
        !             8: ]
        !             9: [
        !            10: .I file ...
        !            11: ]
        !            12: .SH DESCRIPTION
        !            13: .I Lex
        !            14: generates programs to be used in simple lexical analysis of text.
        !            15: The input
        !            16: .I files
        !            17: (standard input default)
        !            18: contain regular expressions
        !            19: to be searched for and actions written in C to be executed when
        !            20: expressions are found.
        !            21: .PP
        !            22: A C source program,
        !            23: .B lex.yy.c
        !            24: is generated.
        !            25: This program, when run, copies unrecognized portions of
        !            26: the input to the output,
        !            27: and executes the associated
        !            28: C action for each regular expression that is recognized.
        !            29: .PP
        !            30: The options have the following meanings.
        !            31: .TP
        !            32: .B -t
        !            33: Place the result on the standard output instead of in file
        !            34: .BR lex.yy.c .
        !            35: .TP
        !            36: .B -v
        !            37: Print a one-line summary of statistics of the generated analyzer.
        !            38: .TP
        !            39: .B -n
        !            40: Opposite of
        !            41: .BR -v ;
        !            42: .B -n
        !            43: is default.
        !            44: .SH EXAMPLES
        !            45: This program converts upper case to lower,
        !            46: removes blanks at the end of lines,
        !            47: and replaces multiple blanks by single blanks.
        !            48: .PP
        !            49: .EX
        !            50: %%
        !            51: [A-Z]  putchar(yytext[0]+\'a\'-\'A\');
        !            52: [ ]+$
        !            53: [ ]+   putchar(\' \');
        !            54: .EE
        !            55: .SH FILES
        !            56: .TF /sys/lib/lex/ncform
        !            57: .TP
        !            58: .B lex.yy.c
        !            59: output
        !            60: .TP
        !            61: .B /sys/lib/lex/ncform
        !            62: template
        !            63: .SH "SEE ALSO"
        !            64: .IR yacc (1), 
        !            65: .IR sed (1)
        !            66: .br
        !            67: M. E. Lesk and E. Schmidt,
        !            68: `LEX\(emLexical Analyzer Generator', 
        !            69: .I
        !            70: Unix Research System Programmer's Manual,
        !            71: Tenth Edition, Volume 2.
        !            72: .SH SOURCE
        !            73: .B /sys/src/cmd/lex
        !            74: .SH BUGS
        !            75: Cannot handle
        !            76: .SM UTF.
        !            77: .br
        !            78: The asteroid to kill this dinosaur is still in orbit.

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