Initial commit
This commit is contained in:
81
README.md
Normal file
81
README.md
Normal file
@@ -0,0 +1,81 @@
|
||||
# spp
|
||||
|
||||
## Description
|
||||
SPP (Single Pass Parser) is a minimal, zero-allocation parsing utility for C
|
||||
that operates directly on a character stream. It provides a small set of
|
||||
composable primitives for building fast, simple parsers without backtracking.
|
||||
|
||||
The library is designed around the idea of consuming input in a single forward
|
||||
pass, making it ideal for tokenization, lightweight parsing, and embedded
|
||||
systems.
|
||||
|
||||
## Table of Contents
|
||||
|
||||
* [Features](#features)
|
||||
* [Todos](#todos)
|
||||
* [Usage](#usage)
|
||||
* [Acknowledgments](#acknowledgments)
|
||||
* [License](#license)
|
||||
|
||||
## Features
|
||||
|
||||
* Single-pass, forward-only parsing
|
||||
* Zero allocations
|
||||
* Tiny API surface
|
||||
* Composable primitives
|
||||
* Works directly on const char* streams
|
||||
|
||||
## Todos
|
||||
|
||||
* [ ] Add new feature X
|
||||
* [ ] Improve documentation
|
||||
* [ ] Write tests
|
||||
|
||||
## Usage
|
||||
```
|
||||
// Returns true if the current character is in the provided character set.
|
||||
bool spp_is(struct Stream s, const char *list);
|
||||
|
||||
// Returns true if the stream has reached the end '\0'
|
||||
bool spp_eof(struct Stream s);
|
||||
|
||||
// Consumes and returns the current stream character if in a list.
|
||||
char spp_take(struct Stream s, const char *list);
|
||||
|
||||
// Consumes characters while they belong to the set. I.E. skip white-space.
|
||||
uintptr_t spp_skip(struct Stream s, const char *list);
|
||||
|
||||
// Consumes characters until a character from the set is encountered.
|
||||
uintptr_t spp_until(struct Stream s, const char *list);
|
||||
|
||||
// Returns current cursor position of the stream.
|
||||
const char *spp_cursor(struct Stream s);
|
||||
|
||||
```
|
||||
|
||||
## Tokenizing Words
|
||||
|
||||
```
|
||||
while (!spp_eof(s)) {
|
||||
spp_skip(s, WS);
|
||||
|
||||
const char *start = spp_cursor(s);
|
||||
uintptr_t len = spp_until(s, WS);
|
||||
|
||||
if (len > 0) {
|
||||
printf("Token: %.*s\n", (int)len, start);
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
## Acknowledgments
|
||||
|
||||
[Tom Preston-Werner README Driven Development](https://tom.preston-werner.com/2010/08/23/readme-driven-development)<br>
|
||||
[Make a README](https://www.makeareadme.com/)<br>
|
||||
[Choose a LICENSE](https://choosealicense.com/)<br>
|
||||
|
||||
|
||||
## License
|
||||
|
||||
This project is licensed under the MIT License - see the [LICENSE] file for details.
|
||||
|
||||
Reference in New Issue
Block a user