Synopsis:
   alogcheck is an application that checks if a specified condition has been
   satisfied in an alog file.

Usage:
   alogcheck in.log [OPTIONS]

Options:
   -s, --start [COND]      - Delays checking other conditions until this
                             condition has been satisfied. If this flag is used
                             multiple times, the conditions will be conjoined.
   -e, --end [COND]        - Stops checking other conditions until once
                             condition has been satisfied. If this flag is used
                             multiple times, the conditions will be conjoined.
   -p, --pass [COND]       - A condition that if found will result in the check
                             passing. If this flag is used multiple times, the
                             conditions will be conjoined.
   -f, --fail [COND]       - A condition that if found will result in the check
                             failing. If this flag is used multiple times, the
                             conditions will be conjoined.
   -i, --input [file]      - Reads in arguments from the specified file. All
                             arguments that take in conditions can be used
                             in the input file.
   -o, --output [file]     - Prints the output from the checker to a file
   --verbose               - Sets the checker to be verbose

Global options:
   -h, --help              - Displays the help contents
   -v, --version           - Displays the version information

Additional Variables:
   ALOG_TIMESTAMP          - The current timestamp in the alog file. This
                             variable can be used in logic conditions.

Helpful Hints:
   1. The results of a check are based on if ALL pass conditions have been
      satisfied and NONE of the fail conditions have been satisfied after
      the start conditions have been satisfied and before the end conditions
      have been satisfied. If start and end conditions are not specified, the
      entire log will be checked.
   2. Condition strings should be wrapped in quotes since some logic expressions
      may be interpreted by the shell instead of being passed in as arguments.
      For instance, on Linux if "NAV_X>100" is not wrapped in quotes, the
      application output will be redirected to a file named '100'.
   3. When using the logical-AND or logical-OR operators, expressions MUST use
      parentheses: (NAV_X<0) OR (NAV_X>100)

Example:
   alogcheck --start "ALOG_TIMESTAMP > 20" --end "ALOG_TIMESTAMP > 500"
     --pass "DEPLOY==false" --pass "MISSION_COMPLETE=true" 
     --fail "((NAV_X > 100) OR (NAV_X < 0)) OR ((NAV_Y < 0) OR (NAV_Y > 100))"
     alpha_mission.alog