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fix product function and add examples

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This commit is contained in:
Mark
2023-10-19 19:38:13 +02:00
parent 1cb84fea43
commit 42288494f0
7 changed files with 64 additions and 2 deletions
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3
mers_lib/src/program/configs/with_base.rs
View File

@@ -62,6 +62,9 @@ impl Config {
// found a function that won't fail for this arg_type!
if !func_fallible {
tuple_fallible = false;
if tuple_possible {
break;
}
}
}
if tuple_fallible || !tuple_possible {

2
mers_lib/src/program/configs/with_math.rs
View File

@@ -247,7 +247,7 @@ impl Config {
}
}
if usef {
Data::new(data::float::Float(prodi as f64 + prodf))
Data::new(data::float::Float(prodi as f64 * prodf))
} else {
Data::new(data::int::Int(prodi))
}

14
mers_lib/src/program/configs/with_string.rs
View File

@@ -8,13 +8,25 @@ use crate::{
use super::Config;
impl Config {
/// `trim: fn` removes leading and trailing whitespace from a string
/// `substring: fn` extracts part of a string. usage: (str, start).substring or (str, start, end).substring. start and end may be negative, in which case they become str.len - n: (str, 0, -1) shortens the string by 1.
/// `index_of: fn` finds the index of a pattern in a string
/// `index_of_rev: fn` finds the last index of a pattern in a string
/// `to_string: fn` turns any argument into a (more or less useful) string representation
/// `concat: fn` concatenates all arguments given to it. arg must be an enumerable
pub fn with_string(self) -> Self {
self.add_var("concat".to_string(), Data::new(data::function::Function {
self.add_var("trim".to_string(), Data::new(data::function::Function {
info: Arc::new(Info::neverused()),
info_check: Arc::new(Mutex::new(CheckInfo::neverused())),
out: Arc::new(|a, _i| if a.is_included_in(&data::string::StringT) {
Ok(Type::new(data::string::StringT))
} else {
Err(CheckError(format!("cannot call trim on non-strings")))
}),
run: Arc::new(|a, _i| {
Data::new(data::string::String(a.get().as_any().downcast_ref::<data::string::String>().unwrap().0.trim().to_owned()))
})
})).add_var("concat".to_string(), Data::new(data::function::Function {
info: Arc::new(Info::neverused()),
info_check: Arc::new(Mutex::new(CheckInfo::neverused())),
out: Arc::new(|a, _i| if a.iterable().is_some() {