#![allow(non_snake_case)]
use crate::plugin::*;
use crate::stdlib::{
any::TypeId, boxed::Box, format, mem, string::String, string::ToString, vec::Vec,
};
use crate::{def_package, Dynamic, FnPtr, ImmutableString, StaticVec, INT};
macro_rules! gen_concat_functions {
($root:ident => $($arg_type:ident),+ ) => {
pub mod $root { $( pub mod $arg_type {
use super::super::*;
#[export_module]
pub mod functions {
#[rhai_fn(name = "+")]
pub fn append_func(x: &str, y: $arg_type) -> String {
format!("{}{}", x, y)
}
#[rhai_fn(name = "+")]
pub fn prepend_func(x: &mut $arg_type, y: &str) -> String {
format!("{}{}", x, y)
}
}
} )* }
}
}
macro_rules! reg_functions {
($mod_name:ident += $root:ident ; $($arg_type:ident),+) => { $(
combine_with_exported_module!($mod_name, "strings_concat", $root::$arg_type::functions);
)* }
}
def_package!(crate:MoreStringPackage:"Additional string utilities, including string building.", lib, {
reg_functions!(lib += basic; INT, bool, FnPtr);
#[cfg(not(feature = "only_i32"))]
#[cfg(not(feature = "only_i64"))]
{
reg_functions!(lib += numbers; i8, u8, i16, u16, i32, i64, u32, u64);
#[cfg(not(target_arch = "wasm32"))]
reg_functions!(lib += num_128; i128, u128);
}
#[cfg(not(feature = "no_float"))]
reg_functions!(lib += float; f32, f64);
combine_with_exported_module!(lib, "string", string_functions);
lib.set_iter(
TypeId::of::<ImmutableString>(),
|s: Dynamic| Box::new(s.cast::<ImmutableString>().chars().collect::<Vec<_>>().into_iter().map(Into::into))
);
});
gen_concat_functions!(basic => INT, bool, char, FnPtr);
#[cfg(not(feature = "only_i32"))]
#[cfg(not(feature = "only_i64"))]
gen_concat_functions!(numbers => i8, u8, i16, u16, i32, i64, u32, u64);
#[cfg(not(feature = "only_i32"))]
#[cfg(not(feature = "only_i64"))]
#[cfg(not(target_arch = "wasm32"))]
gen_concat_functions!(num_128 => i128, u128);
#[cfg(not(feature = "no_float"))]
gen_concat_functions!(float => f32, f64);
#[export_module]
mod string_functions {
#[rhai_fn(name = "+")]
pub fn add_append_unit(s: ImmutableString, _x: ()) -> ImmutableString {
s
}
#[rhai_fn(name = "+")]
pub fn add_prepend_unit(_x: (), s: ImmutableString) -> ImmutableString {
s
}
#[rhai_fn(name = "len", get = "len")]
pub fn len(s: &str) -> INT {
s.chars().count() as INT
}
pub fn clear(s: &mut ImmutableString) {
s.make_mut().clear();
}
pub fn truncate(s: &mut ImmutableString, len: INT) {
if len > 0 {
let chars: StaticVec<_> = s.chars().collect();
let copy = s.make_mut();
copy.clear();
copy.extend(chars.into_iter().take(len as usize));
} else {
s.make_mut().clear();
}
}
pub fn trim(s: &mut ImmutableString) {
let trimmed = s.trim();
if trimmed.len() < s.len() {
*s = trimmed.to_string().into();
}
}
#[rhai_fn(name = "contains")]
pub fn contains_char(s: &str, ch: char) -> bool {
s.contains(ch)
}
pub fn contains(s: &str, find: ImmutableString) -> bool {
s.contains(find.as_str())
}
#[rhai_fn(name = "index_of")]
pub fn index_of_char_starting_from(s: &str, ch: char, start: INT) -> INT {
let start = if start < 0 {
0
} else if start as usize >= s.chars().count() {
return -1 as INT;
} else {
s.chars().take(start as usize).collect::<String>().len()
};
s[start..]
.find(ch)
.map(|index| s[0..start + index].chars().count() as INT)
.unwrap_or(-1 as INT)
}
#[rhai_fn(name = "index_of")]
pub fn index_of_char(s: &str, ch: char) -> INT {
s.find(ch)
.map(|index| s[0..index].chars().count() as INT)
.unwrap_or(-1 as INT)
}
#[rhai_fn(name = "index_of")]
pub fn index_of_string_starting_from(s: &str, find: ImmutableString, start: INT) -> INT {
let start = if start < 0 {
0
} else if start as usize >= s.chars().count() {
return -1 as INT;
} else {
s.chars().take(start as usize).collect::<String>().len()
};
s[start..]
.find(find.as_str())
.map(|index| s[0..start + index].chars().count() as INT)
.unwrap_or(-1 as INT)
}
#[rhai_fn(name = "index_of")]
pub fn index_of(s: &str, find: ImmutableString) -> INT {
s.find(find.as_str())
.map(|index| s[0..index].chars().count() as INT)
.unwrap_or(-1 as INT)
}
pub fn sub_string(s: &str, start: INT, len: INT) -> ImmutableString {
let offset = if s.is_empty() || len <= 0 {
return "".to_string().into();
} else if start < 0 {
0
} else if start as usize >= s.chars().count() {
return "".to_string().into();
} else {
start as usize
};
let chars: StaticVec<_> = s.chars().collect();
let len = if offset + len as usize > chars.len() {
chars.len() - offset
} else {
len as usize
};
chars
.iter()
.skip(offset)
.take(len)
.cloned()
.collect::<String>()
.into()
}
#[rhai_fn(name = "sub_string")]
pub fn sub_string_starting_from(s: &str, start: INT) -> ImmutableString {
let len = s.len() as INT;
sub_string(s, start, len)
}
#[rhai_fn(name = "crop")]
pub fn crop(s: &mut ImmutableString, start: INT, len: INT) {
let offset = if s.is_empty() || len <= 0 {
s.make_mut().clear();
return;
} else if start < 0 {
0
} else if start as usize >= s.chars().count() {
s.make_mut().clear();
return;
} else {
start as usize
};
let chars: StaticVec<_> = s.chars().collect();
let len = if offset + len as usize > chars.len() {
chars.len() - offset
} else {
len as usize
};
let copy = s.make_mut();
copy.clear();
copy.extend(chars.iter().skip(offset).take(len));
}
#[rhai_fn(name = "crop")]
pub fn crop_string_starting_from(s: &mut ImmutableString, start: INT) {
crop(s, start, s.len() as INT);
}
#[rhai_fn(name = "replace")]
pub fn replace(s: &mut ImmutableString, find: ImmutableString, sub: ImmutableString) {
*s = s.replace(find.as_str(), sub.as_str()).into();
}
#[rhai_fn(name = "replace")]
pub fn replace_string_with_char(s: &mut ImmutableString, find: ImmutableString, sub: char) {
*s = s.replace(find.as_str(), &sub.to_string()).into();
}
#[rhai_fn(name = "replace")]
pub fn replace_char_with_string(s: &mut ImmutableString, find: char, sub: ImmutableString) {
*s = s.replace(&find.to_string(), sub.as_str()).into();
}
#[rhai_fn(name = "replace")]
pub fn replace_char(s: &mut ImmutableString, find: char, sub: char) {
*s = s.replace(&find.to_string(), &sub.to_string()).into();
}
#[rhai_fn(return_raw)]
pub fn pad(
_ctx: NativeCallContext,
s: &mut ImmutableString,
len: INT,
ch: char,
) -> Result<Dynamic, Box<crate::EvalAltResult>> {
#[cfg(not(feature = "unchecked"))]
if _ctx.engine().max_string_size() > 0 && len as usize > _ctx.engine().max_string_size() {
return crate::EvalAltResult::ErrorDataTooLarge(
"Length of string".to_string(),
crate::Position::NONE,
)
.into();
}
if len > 0 {
let orig_len = s.chars().count();
if len as usize > orig_len {
let p = s.make_mut();
for _ in 0..(len as usize - orig_len) {
p.push(ch);
}
#[cfg(not(feature = "unchecked"))]
if _ctx.engine().max_string_size() > 0 && s.len() > _ctx.engine().max_string_size()
{
return crate::EvalAltResult::ErrorDataTooLarge(
"Length of string".to_string(),
crate::Position::NONE,
)
.into();
}
}
}
Ok(Dynamic::UNIT)
}
#[rhai_fn(name = "pad", return_raw)]
pub fn pad_with_string(
_ctx: NativeCallContext,
s: &mut ImmutableString,
len: INT,
padding: &str,
) -> Result<Dynamic, Box<crate::EvalAltResult>> {
#[cfg(not(feature = "unchecked"))]
if _ctx.engine().max_string_size() > 0 && len as usize > _ctx.engine().max_string_size() {
return crate::EvalAltResult::ErrorDataTooLarge(
"Length of string".to_string(),
crate::Position::NONE,
)
.into();
}
if len > 0 {
let mut str_len = s.chars().count();
let padding_len = padding.chars().count();
if len as usize > str_len {
let p = s.make_mut();
while str_len < len as usize {
if str_len + padding_len <= len as usize {
p.push_str(padding);
str_len += padding_len;
} else {
p.extend(padding.chars().take(len as usize - str_len));
str_len = len as usize;
}
}
#[cfg(not(feature = "unchecked"))]
if _ctx.engine().max_string_size() > 0 && s.len() > _ctx.engine().max_string_size()
{
return crate::EvalAltResult::ErrorDataTooLarge(
"Length of string".to_string(),
crate::Position::NONE,
)
.into();
}
}
}
Ok(Dynamic::UNIT)
}
#[cfg(not(feature = "no_index"))]
pub mod arrays {
use crate::Array;
#[rhai_fn(name = "+")]
pub fn append(x: &str, y: Array) -> String {
format!("{}{:?}", x, y)
}
#[rhai_fn(name = "+")]
pub fn prepend(x: &mut Array, y: &str) -> String {
format!("{:?}{}", x, y)
}
pub fn split(s: &str, delimiter: ImmutableString) -> Array {
s.split(delimiter.as_str())
.map(Into::<Dynamic>::into)
.collect()
}
#[rhai_fn(name = "split")]
pub fn split_char(s: &str, delimiter: char) -> Array {
s.split(delimiter).map(Into::<Dynamic>::into).collect()
}
}
#[cfg(not(feature = "no_object"))]
pub mod maps {
use crate::Map;
#[rhai_fn(name = "+")]
pub fn append(x: &str, y: Map) -> String {
format!("{}#{:?}", x, y)
}
#[rhai_fn(name = "+")]
pub fn prepend(x: &mut Map, y: &str) -> String {
format!("#{:?}{}", x, y)
}
}
}