mirror of
https://github.com/zaphar/sheetsui.git
synced 2025-07-23 13:29:48 -04:00
wip: try out csvx instead
This commit is contained in:
parent
9fb467656b
commit
63d8c47c1f
1173
Cargo.lock
generated
1173
Cargo.lock
generated
File diff suppressed because it is too large
Load Diff
@ -6,9 +6,9 @@ edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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a1 = "1.0.1"
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anyhow = { version = "1.0.91", features = ["backtrace"] }
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clap = { version = "4.5.20", features = ["derive"] }
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crossterm = "0.28.1"
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formula = "0.1.0"
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csvx = "0.1.17"
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ratatui = "0.29.0"
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thiserror = "1.0.65"
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15
src/main.rs
15
src/main.rs
@ -1,5 +1,6 @@
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use std::path::PathBuf;
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use anyhow::Context;
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use clap::Parser;
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use crossterm::event::{self, Event, KeyCode, KeyEventKind};
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use ratatui::{
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@ -8,7 +9,7 @@ use ratatui::{
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widgets::{Table, Tabs},
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Frame,
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};
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use sheet::{Address, Computable, Tbl};
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use sheet::{Address, CellValue, Tbl};
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mod sheet;
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@ -32,9 +33,15 @@ fn run(terminal: &mut ratatui::DefaultTerminal) -> std::io::Result<()> {
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fn generate_default_table<'a>() -> Table<'a> {
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let mut tbl = Tbl::new();
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tbl.update_entry(Address::new(5, 5), Computable::Text("loc: 5, 5".to_owned()));
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tbl.update_entry(Address::new(10, 10), Computable::Number(10.10));
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tbl.update_entry(Address::new(0, 0), Computable::Formula("".to_owned()));
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tbl.update_entry(Address::new(5, 5), CellValue::text("5,5"))
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.context("Failed updating entry at 5,5")
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.unwrap();
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tbl.update_entry(Address::new(10, 10), CellValue::float(10.10))
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.context("Failed updating entry at 10,10")
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.unwrap();
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tbl.update_entry(Address::new(0, 0), CellValue::other("0.0"))
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.context("Failed updating entry at 0,0")
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.unwrap();
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tbl.into()
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}
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@ -1,202 +0,0 @@
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//! Parser for a spreadsheet formula.
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use a1::A1;
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use std::iter::Iterator;
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use std::ops::{RangeBounds, Index};
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use std::slice::SliceIndex;
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/// A segment of a Formula. A formula is segmented into either
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/// [Placeholder](FormulaSegment::Placeholder) address lookups or partial
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/// formula text.
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#[derive(Debug)]
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pub enum FormulaSegment<'source> {
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Placeholder(A1),
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Unparsed(&'source str),
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}
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/// A Parsed Formula AST
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#[derive(Debug)]
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pub struct PreParsed<'source> {
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segments: Vec<FormulaSegment<'source>>,
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}
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#[derive(thiserror::Error, Debug)]
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pub enum FormulaError {
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#[error("Failed to Parse formula")]
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ParseFailure,
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}
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impl<'source> PreParsed<'source> {
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pub fn is_formula(candidate: &str) -> bool {
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candidate.len() > 0 && candidate.bytes().nth(0).unwrap() == b'='
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}
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pub fn try_parse(candidate: &'source str) -> Result<Option<Self>, FormulaError> {
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if !Self::is_formula(candidate) {
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return Ok(None);
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}
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// TODO(zaphar) Gather up the references for this Formula
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Ok(Some(PreParsed {
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segments: parse_segments(candidate.into()),
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}))
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}
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}
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fn parse_segments<'source>(mut iter: StrIter<'source>) -> Vec<FormulaSegment<'source>> {
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let mut segments = Vec::new();
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let mut buffer = Vec::new();
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loop {
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if let Some((addr, i)) = try_parse_addr(iter.clone()) {
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segments.push(FormulaSegment::Placeholder(addr));
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buffer.clear();
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iter = i;
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} else {
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if let Some(b) = iter.peek_next() {
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buffer.push(b);
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}
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}
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if let None = iter.next() {
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break;
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}
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}
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return segments;
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}
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pub fn try_parse_addr<'source>(iter: StrIter<'source>) -> Option<(a1::A1, StrIter<'source>)> {
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let start = iter.clone();
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if let Ok(addr) = a1::new(start.rest()) {
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return Some((addr, start));
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}
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// Consume 1 capital
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//if let Some(i) = consume_capital(iter.clone()) {
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// iter = i;
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//} else {
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// // This isn't a capitable letter
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// return None
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//}
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//// maybe Consume 2 capital letters
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//if let Some(i) = consume_capital(iter.clone()) {
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// iter = i;
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//}
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//if let Some(b':') = iter.peek_next() {
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// iter.next();
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//}
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//// Consume 1 capital
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//if let Some(i) = consume_capital(iter.clone()) {
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// iter = i;
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//} else {
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// // This isn't a capitable letter
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// return None
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//}
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//// maybe Consume 2 capital letters
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//if let Some(i) = consume_capital(iter.clone()) {
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// iter = i;
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//}
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return None;
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}
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fn consume_capital<'source>(mut iter: StrIter<'source>) -> Option<StrIter<'source>> {
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if let Some(c) = iter.peek_next() {
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match *c {
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b'A' | b'B' | b'C' | b'D' | b'E' | b'F' | b'G' | b'H' | b'I' | b'J' | b'K'
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| b'L' | b'M' | b'N' | b'O' | b'P' | b'Q' | b'R' | b'S' | b'T' | b'U'
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| b'V' | b'W' | b'X' | b'Y' | b'Z' => {
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iter.next();
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return Some(iter);
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}
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_ => {
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return None;
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}
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}
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}
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return None;
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}
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fn consume_ws<'source>(mut iter: StrIter<'source>) -> Option<StrIter<'source>> {
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if let Some(c) = iter.peek_next() {
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match *c {
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b' ' | b'\t' | b'\r' | b'\n' => {
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iter.next();
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return Some(iter);
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}
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_ => {
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return None;
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}
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}
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}
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return None;
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}
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/// Implements `InputIter` for any slice of T.
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#[derive(Debug)]
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pub struct StrIter<'a> {
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source: &'a str,
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pub offset: usize,
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}
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impl<'a> StrIter<'a> {
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/// new constructs a StrIter from a Slice of T.
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pub fn new(source: &'a str) -> Self {
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StrIter { source, offset: 0 }
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}
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fn seek(&mut self, to: usize) -> usize {
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let self_len = self.source.len();
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let offset = if self_len > to { to } else { self_len };
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self.offset = offset;
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self.offset
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}
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fn peek_next(&self) -> Option<&'a u8> {
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self.source.as_bytes().get(self.offset)
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}
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fn get_range<R: RangeBounds<usize> + SliceIndex<str, Output=str>>(&self, range: R) -> &'a str {
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&self.source[range]
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}
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pub fn rest(&'a self) -> &'a str {
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&self[self.offset..]
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}
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}
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impl<'a> Iterator for StrIter<'a> {
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type Item = &'a u8;
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fn next(&mut self) -> Option<Self::Item> {
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match self.source.as_bytes().get(self.offset) {
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// TODO count lines and columns.
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Some(item) => {
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self.offset += 1;
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Some(item)
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}
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None => None,
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}
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}
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}
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impl<'a> Clone for StrIter<'a> {
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fn clone(&self) -> Self {
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StrIter {
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source: self.source,
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offset: self.offset,
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}
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}
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}
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impl<'a> From<&'a str> for StrIter<'a> {
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fn from(source: &'a str) -> Self {
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Self::new(source)
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}
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}
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impl<'a, Idx> Index<Idx> for StrIter<'a>
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where Idx: RangeBounds<usize> + SliceIndex<str, Output=str>
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{
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type Output = Idx::Output;
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fn index(&self, index: Idx) -> &'a Self::Output {
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&self.source[index]
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}
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}
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125
src/sheet/mod.rs
125
src/sheet/mod.rs
@ -6,11 +6,45 @@
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//! associations. From this we can compute the dimensions of a Tbl as well as render
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//! them into a [Table] Widget.
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use anyhow::{anyhow, Result};
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use csvx;
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use ratatui::widgets::{Cell, Row, Table};
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use std::collections::BTreeMap;
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use std::borrow::Borrow;
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mod formula;
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pub enum CellValue {
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Text(String),
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Float(f64),
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Integer(i64),
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Other(String),
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}
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impl CellValue {
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pub fn to_csv_value(&self) -> String {
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match self {
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CellValue::Text(v) => format!("\"{}\"", v),
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CellValue::Float(v) => format!("{}", v),
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CellValue::Integer(v) => format!("{}", v),
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CellValue::Other(v) => format!("{}", v),
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}
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}
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pub fn text<S: Into<String>>(value: S) -> CellValue {
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CellValue::Text(Into::<String>::into(value))
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}
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pub fn other<S: Into<String>>(value: S) -> CellValue {
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CellValue::Other(Into::<String>::into(value))
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}
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pub fn float(value: f64) -> CellValue {
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CellValue::Float(value)
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}
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pub fn int(value: i64) -> CellValue {
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CellValue::Integer(value)
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}
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}
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/// The Address in a [Tbl].
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#[derive(Default, Debug, PartialEq, PartialOrd, Ord, Eq)]
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@ -25,75 +59,66 @@ impl Address {
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}
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}
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impl From<(usize, usize)> for Address {
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fn from((row, col): (usize, usize)) -> Self {
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Address::new(row, col)
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}
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}
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/// The computable value located at an [Address].
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#[derive(Debug)]
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pub enum Computable {
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Text(String),
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Number(f64),
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Formula(String),
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}
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impl Default for Computable {
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fn default() -> Self {
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Self::Text("".to_owned())
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}
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}
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/// A single table of addressable computable values.
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#[derive(Default, Debug)]
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pub struct Tbl {
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addresses: BTreeMap<Address, Computable>,
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csv: csvx::Table,
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}
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impl Tbl {
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pub fn new() -> Self {
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Self::default()
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Self {
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csv: csvx::Table::new("").unwrap(),
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}
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}
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pub fn dimensions(&self) -> (usize, usize) {
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let (mut row, mut col) = (0, 0);
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for (addr, _) in &self.addresses {
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row = std::cmp::max(row, addr.row);
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col = std::cmp::max(col, addr.col);
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let table = self.csv.get_raw_table();
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let row_count = table.len();
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if row_count > 0 {
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let col_count = table.first().unwrap().len();
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return (row_count, col_count);
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}
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(row, col)
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return (0, 0);
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}
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pub fn get_computable(&self, row: usize, col: usize) -> Option<&Computable> {
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self.addresses.get(&Address::new(row, col))
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pub fn from_str<S: Borrow<str>>(input: S) -> Result<Self> {
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Ok(Self {
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csv: csvx::Table::new(input)
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.map_err(|e| anyhow!("Error parsing table from csv text: {}", e))?,
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})
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}
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pub fn update_entry(&mut self, address: Address, computable: Computable) {
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pub fn update_entry(&mut self, address: Address, value: CellValue) -> Result<()> {
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// TODO(zaphar): At some point we'll need to store the graph of computation
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// dependencies
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self.addresses.insert(address, computable);
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let (row, col) = self.dimensions();
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if address.row >= row {
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// then we need to add rows.
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for r in row..=address.row {
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self.csv.insert_y(r);
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}
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}
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if address.col >= col {
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for c in col..=address.col {
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self.csv.insert_x(c);
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}
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}
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Ok(self
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.csv
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.update(address.col, address.row, value.to_csv_value())?)
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}
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}
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impl<'t> From<Tbl> for Table<'t> {
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fn from(value: Tbl) -> Self {
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let (row, col) = value.dimensions();
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let rows = (0..=row)
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.map(|ri| {
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(0..=col)
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.map(|ci| {
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match value.get_computable(ri, ci) {
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// TODO(zaphar): Style information
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Some(Computable::Text(s)) => Cell::new(format!(" {}", s)),
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Some(Computable::Number(f)) => Cell::new(format!(" {}", f)),
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Some(Computable::Formula(_expr)) => Cell::new(format!(" .formula. ")),
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None => Cell::new(format!(" {}:{} ", ri, ci)),
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}
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})
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.collect::<Row>()
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let rows: Vec<Row> = value
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.csv
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.get_calculated_table()
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.iter()
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.map(|r| {
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let cells = r.iter().map(|v| Cell::new(format!("{}", v)));
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Row::new(cells)
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})
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.collect::<Vec<Row>>();
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.collect();
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Table::default().rows(rows)
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}
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}
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@ -3,19 +3,11 @@ use super::*;
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#[test]
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fn test_dimensions_calculation() {
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let mut tbl = Tbl::new();
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tbl.update_entry(Address::new(0, 0), Computable::Text(String::new()));
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assert_eq!((0, 0), tbl.dimensions());
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tbl.update_entry(Address::new(0, 10), Computable::Text(String::new()));
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assert_eq!((0, 10), tbl.dimensions());
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tbl.update_entry(Address::new(20, 5), Computable::Text(String::new()));
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assert_eq!((20, 10), tbl.dimensions());
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tbl.update_entry(Address::new(0, 0), CellValue::Text(String::new())).unwrap();
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assert_eq!((1, 1), tbl.dimensions());
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tbl.update_entry(Address::new(0, 10), CellValue::Text(String::new())).unwrap();
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assert_eq!((1, 11), tbl.dimensions());
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tbl.update_entry(Address::new(20, 5), CellValue::Text(String::new())).unwrap();
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assert_eq!((21, 11), tbl.dimensions());
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}
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#[test]
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fn test_address_parse() {
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if let Some((a1, iter)) = formula::try_parse_addr("A1:A2 foo bar".into()) {
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assert_eq!("A1:A2", a1.to_string());
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assert_eq!(&iter[0..], " foo bar");
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}
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}
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