This project will create a C library to parse and emit ELTN text. It will then provide wrappers for various languages including Lua, Python, and Ruby.
Design
Reading
TODO
typedef const unsigned char* (*Eltn_Reader)(void* rdata, size_t *sptr);
TODO
Parsing
The core parser essentially ports ELTNPP to C:
FILE* fp;
Eltn_Parser* epp;
/* try { */
Eltn_Parser_new(&epp, File_Reader, fp);
while (Eltn_Parser_has_next(epp)) {
Eltn_Parser_next(epp);
switch (Eltn_Parser_event(epp)) {
/* etc. ... */
}
}
/* finally { */
fclose(fp);
Eltn_Parser_del(*epp);
/* } */
Eltn_Parser_event will signal a read error in addition to parse errors,
but the API is otherwise remarkably similar.
Building
TODO
Wrappers
Wrappers will use native I/O to construct a tree of native associative arrays.
Lua
The parser will create a tree of tables.
TODO
Python
The parser will create a tree of dictionaries.
TODO
Ruby
The parser will create a tree of Hashes.
TODO