95 lines
2.3 KiB
Markdown
95 lines
2.3 KiB
Markdown
# Bison Parser With Tests
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Create a scanner for your sample programs with tests.
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The tests should include basic statements and the sample files for your language.
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See the [example lab for Python](https://gitlab.cs.wallawalla.edu/cptr354/language-interpreter-lab-python).
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## Build Process
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To build the `scanner.c` run the following **flex** command.
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```sh
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flex -o scanner.c scanner.flex
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```
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The parser is built using **bison**.
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Note this command also builds the `token.h`.
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```sh
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bison --defines=token.h --output=parser.c -v parser.bison
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```
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THe `-v` flag will create a `parser.output` which represents the grammar in text form.
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### Running the Parser
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Then build the `main.c`, `parcer.c` and `scanner.c` using **gcc**.
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Note that you may get a few warnings that can be ignored.
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```sh
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gcc main.c scanner.c parser.c -o parser.out
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```
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Then execute the test suite using `./parser.out` and pass in the input from your sample program.
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For example here is a command for `samples/program.c`
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```sh
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./parser.out < samples/program.c
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```
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### Testing the Parser
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Then build the `main_test.c`, `parcer.c` and `scanner.c` using **gcc**.
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Note that you may get a few warnings that can be ignored.
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```sh
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gcc main_test.c scanner.c parser.c -o parser_test.out
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```
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Then execute the test suite using `./parser_test.out`.
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```sh
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./parser_test.out
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```
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### Using Make
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Alternatively you can use the supplied make file.
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- Build main program - `make`
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- Build test program - `make test`
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- Clean up build files - `make clean`
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## Tests
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- Write test for various statements in your language
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- assignment - Riley
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- print - Josh (write test)
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- mathmatical expressions - Jenessy
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- boolean expressions - Jenessy
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- branching - Josh
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- looping - Riley
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- Write a test for each sample test file.
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- Hello World! - Josh (already done)
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- Quadratic - Jenessy
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- Sorting - Riley
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## Grading Rubric
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The grading will be over the following categories.
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Points Description
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---
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60 points Ability to parse — Six different language statements
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10 points Ability to parse — Hello world
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10 points Ability to parse — Quadratic equation
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10 points Ability to parse — Integer sorting
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10 points Report formatting and readability
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## Turn In
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Please submit the URL of your gitlab project to D2L's Brightspace with your report.
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On gitlab update the `lab-4` folder to have your report and code snippets before the due date.
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