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1.1       root        1: .TH LEX 1
                      2: .CT 1 prog_other
                      3: .SH NAME
                      4: lex \(mi generator of lexical analysis programs
                      5: .SH SYNOPSIS
                      6: .B lex
                      7: [
                      8: .B -tvfn
                      9: ]
                     10: [
                     11: .I file ...
                     12: ]
                     13: .SH DESCRIPTION
                     14: .I Lex
                     15: generates programs to be used in simple lexical analysis of text.
                     16: The input
                     17: .I files
                     18: (standard input default)
                     19: contain regular expressions
                     20: to be searched for, and actions written in C to be executed when
                     21: expressions are found.
                     22: .PP
                     23: A C source program,
                     24: .F lex.yy.c
                     25: is generated, to be compiled thus:
                     26: .IP
                     27: .B cc lex.yy.c -ll
                     28: .LP
                     29: This program, when run, copies unrecognized portions of
                     30: the input to the output,
                     31: and executes the associated
                     32: C action for each regular expression that is recognized.
                     33: .PP
                     34: The options have the following meanings.
                     35: .TP
                     36: .B -t
                     37: Place the result on the standard output instead of in file
                     38: .FR lex.yy.c .
                     39: .TP
                     40: .B -v
                     41: Print a one-line summary of statistics of the generated analyzer.
                     42: .TP
                     43: .B -n
                     44: Opposite of
                     45: .BR -v ;
                     46: .B -n
                     47: is default.
                     48: .TP
                     49: .B -f
                     50: `Faster' compilation: don't bother to pack
                     51: the resulting tables; limited to small programs.
                     52: .SH EXAMPLES
                     53: This program converts upper case to lower,
                     54: removes blanks at the end of lines,
                     55: and replaces multiple blanks by single blanks.
                     56: .PP
                     57: .EX
                     58: %%
                     59: [A-Z]  putchar(yytext[0]+\'a\'-\'A\');
                     60: [ ]+$
                     61: [ ]+   putchar(\' \');
                     62: .EE
                     63: .SH FILES
                     64: .F lex.yy.c
                     65: .SH "SEE ALSO"
                     66: .IR yacc (1), 
                     67: .IR sed (1)
                     68: .br
                     69: M. E. Lesk and E. Schmidt,
                     70: `LEX\(emLexical Analyzer Generator', 
                     71: this manual, Volume 2

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