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/*!
[](https://crates.io/crates/parse-mediawiki-sql)
[](https://docs.rs/parse-mediawiki-sql)
`parse_mediawiki_sql` parses SQL dumps of a MediaWiki database.
The SQL dumps are scripts that create a database table and insert rows into it.
The entry point is `iterate_sql_insertions`, which creates an iterable struct
from a byte slice (`&[u8]`). The struct is generic over the type returned by the iterator,
and this type must be one of the structs in the [`schemas`](schemas) module,
which represent rows in the database, such as [`Page`](schemas::Page).
## Usage
This crate is available from [crates.io](https://crates.io/crate/parse-mediawiki-sql) and can be
used by adding `parse-mediawiki-sql` to your dependencies in your project's `Cargo.toml`.
```toml
[dependencies]
parse-mediawiki-sql = "0.10"
```
If you're using Rust 2015, then you’ll also need to add it to your crate root:
```no_run
extern crate parse_mediawiki_sql;
```
## Example
To generate a `Vec` containing the titles of all redirect pages:
```no_run
# #[cfg(feature = "utils")]
# fn main() -> Result<(), Box<dyn std::error::Error>> {
use parse_mediawiki_sql::{
iterate_sql_insertions,
schemas::Page,
field_types::{PageNamespace, PageTitle},
utils::memory_map,
};
use std::fs::File;
let page_sql = unsafe { memory_map("page.sql")? };
let redirects: Vec<(PageNamespace, PageTitle)> =
iterate_sql_insertions(&page_sql)
.filter_map(
|Page { namespace, title, is_redirect, .. }| {
if is_redirect {
Some((namespace, title))
} else {
None
}
},
)
.collect();
# Ok(())
# }
# #[cfg(not(feature = "utils"))]
# fn main() {}
```
Only a mutable reference to the struct is iterable, so a `for`-loop
must use `&mut` or `.into_iter()` to iterate over the struct:
```no_run
# #[cfg(feature = "utils")]
# fn main() -> Result<(), Box<dyn std::error::Error>> {
# use parse_mediawiki_sql::{
# iterate_sql_insertions,
# schemas::Page,
# utils::memory_map,
# };
# let page_sql =
# unsafe { memory_map("page.sql")? };
for Page { namespace, title, is_redirect, .. } in &mut iterate_sql_insertions(&page_sql) {
if is_redirect {
dbg!((namespace, title));
}
}
# Ok(())
# }
# #[cfg(not(feature = "utils"))]
# fn main() {}
```
*/
use ;
use ;
pub use Error;
pub use IResult;
/**
Trait for converting from a SQL tuple to a Rust type,
which can borrow from the string or not.
Used by [`iterate_sql_insertions`].
*/
/**
The entry point of the crate. Takes a SQL dump of a MediaWiki database table as bytes
and yields an iterator over structs representing rows in the table.
The return value is iterable as a mutable reference,
and when iterated it yields structs representing the database rows (`Row`).
These rows are represented as tuples in the SQL code.
The tuples are parsed using [`FromSqlTuple::from_sql_tuple`]
and the fields in the tuples are parsed by [`FromSql::from_sql`](from_sql::FromSql::from_sql).
See the [example][crate#example] in the documentation, and see [`schemas`] for the full list of possible `Row`s.
*/