60 lines
1.4 KiB
Rust
60 lines
1.4 KiB
Rust
use std::vec::IntoIter;
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use peekmore::PeekMoreIterator;
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use crate::Token;
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#[derive(Debug)]
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pub(crate) struct ParsedNumber {
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/// The full number excluding the decimal
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///
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/// E.g. for `1.23`, this would be `"123"`
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pub num: String,
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/// The length of the decimal
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///
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/// E.g. for `1.23`, this would be `2`
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pub dec_len: usize,
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/// The number following e in a scientific notated number
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///
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/// E.g. for `1e23`, this would be `"23"`,
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/// for `1`, this would be an empty string
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// TODO: maybe we just return a bigint?
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pub times_ten: String,
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/// Whether or not `times_ten` is negative
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///
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/// E.g. for `1e-23` this would be `true`,
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/// for `1e23` this would be `false`
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pub times_ten_is_postive: bool,
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}
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impl ParsedNumber {
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pub const fn new(
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num: String,
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dec_len: usize,
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times_ten: String,
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times_ten_is_postive: bool,
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) -> Self {
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Self {
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num,
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dec_len,
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times_ten,
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times_ten_is_postive,
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}
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}
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}
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pub(crate) fn eat_whole_number(toks: &mut PeekMoreIterator<IntoIter<Token>>) -> String {
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let mut buf = String::new();
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while let Some(c) = toks.peek() {
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if !c.kind.is_ascii_digit() {
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break;
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}
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let tok = toks.next().unwrap();
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buf.push(tok.kind);
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}
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buf
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}
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