AeroC- Aviation Domain-Specific Language

AeroC is a C-based domain-specific language (DSL) for aviation operations, modelled after a Global Distribution System (GDS). It parses flight-related commands from an input file and produces booking output.

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Features

• Search and book flights using a simple command syntax
• Auto-generates a 6-character alphanumeric PNR (Passenger Name Record)
• Manage flights, bookings, and airports in memory
• Cancel bookings by PNR
• List all current bookings and airports

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DSL Command Syntax

Commands are written in plain text and passed via input.txt:

searchflight <flight_id> <from> to <to> book <seats> seat <date> <time>

Example:

searchflight pd123 yyz to yow book 1 seat 2025-05-25 10:00

Field	Description	Example
flight_id	Flight number	pd123
from	Departure airport code	yyz
to	Arrival airport code	yow
seats	Number of seats	1
date	Travel date (YYYY-MM-DD)	2025-05-25
time	Departure time (HH:MM)	10:00

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Building

With CMake:

mkdir build && cd build
cmake ..
cmake --build .

With MSVC (Visual Studio): Open AeroC_GDS.sln and build.

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Running

./AeroC_GDS input.txt output.txt

The program reads one command from input.txt, processes it, and writes the booking result to output.txt.

Output example:

booked yyz to yow flight pd123 date 2025-05-25 time 10:00 seats 1 PNR: K3X9AM

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Data Types

AeroC defines its own type aliases for aviation concepts:

Type	Underlying	Purpose
aeroc_flightid	char[32]	Flight number
aeroc_airport	char[8]	IATA airport code
aeroc_date	char[16]	Date string
aeroc_time	char[8]	Time string
aeroc_pnr	char[7]	Booking reference
aeroc_name	char[70]	Passenger name
aeroc_class	char[8]	Booking class (Y/J/F)
aeroc_farecode	char[8]	Fare code

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Files

AeroC.h             Type definitions, structs, and function prototypes
AeroC_Main.c        Entry point — reads input, calls parser and booking writer
AeroC_Parser.c      Parses DSL command string into structured fields
AeroC_Booking.c     Flight/booking/airport operations (add, book, cancel, list)
input.txt           Sample DSL command input
CMakeLists.txt      CMake build config
AeroC_GDS.sln       Visual Studio solution