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lex:tldr:f00b5
This command is using the lex
command-line tool to generate a lexical analyzer program from a given specification. Let's break it down:
-
lex
: This is the command to invoke thelex
tool.lex
is a program generator that can be used to create lexical analyzers, also known as scanners or tokenizers, for programming languages or other textual input. -
${analyzer-l}
: This is a variable (represented by${}
syntax) that holds the input file for the lexical analyzer specification. The-l
option is used to specify the input file. -
--outfile ${analyzer-c}
: This is another variable that holds the output file name for the generated lexical analyzer program. The--outfile
option is used to specify the output file.
In summary, this command takes a lexical analyzer specification file stored in the ${analyzer-l}
variable and generates a lexical analyzer program, saving it in the file specified by the ${analyzer-c}
variable.