poop graph data extractor prototype
This commit is contained in:
commit
7b22bbab16
1
.gitignore
vendored
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1
.gitignore
vendored
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@ -0,0 +1 @@
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/target
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548
Cargo.lock
generated
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548
Cargo.lock
generated
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@ -0,0 +1,548 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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|
||||
[[package]]
|
||||
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||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
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|
||||
|
||||
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||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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||||
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|
||||
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||||
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||||
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||||
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||||
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||||
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|
||||
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||||
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||||
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||||
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|
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|
||||
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||||
|
||||
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||||
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||||
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|
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|
||||
|
||||
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||||
|
||||
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|
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||||
|
||||
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|
||||
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|
||||
version = "0.1.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8ee348cb74b87454fff4b551cbf727025810a004f88aeacae7f85b87f4e9a1c1"
|
||||
dependencies = [
|
||||
"unicode-bidi",
|
||||
"unicode-normalization",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.90"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "704df27628939572cd88d33f171cd6f896f4eaca85252c6e0a72d8d8287ee86f"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-xid",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "time"
|
||||
version = "0.1.44"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
|
||||
dependencies = [
|
||||
"libc",
|
||||
"wasi",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "time"
|
||||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c2702e08a7a860f005826c6815dcac101b19b5eb330c27fe4a5928fec1d20ddd"
|
||||
dependencies = [
|
||||
"itoa",
|
||||
"libc",
|
||||
"num_threads",
|
||||
"time-macros",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "time-macros"
|
||||
version = "0.2.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "42657b1a6f4d817cda8e7a0ace261fe0cc946cf3a80314390b22cc61ae080792"
|
||||
|
||||
[[package]]
|
||||
name = "tinyvec"
|
||||
version = "1.5.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2c1c1d5a42b6245520c249549ec267180beaffcc0615401ac8e31853d4b6d8d2"
|
||||
dependencies = [
|
||||
"tinyvec_macros",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tinyvec_macros"
|
||||
version = "0.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
|
||||
|
||||
[[package]]
|
||||
name = "typenum"
|
||||
version = "1.15.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dcf81ac59edc17cc8697ff311e8f5ef2d99fcbd9817b34cec66f90b6c3dfd987"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-bidi"
|
||||
version = "0.3.7"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1a01404663e3db436ed2746d9fefef640d868edae3cceb81c3b8d5732fda678f"
|
||||
|
||||
[[package]]
|
||||
name = "unicode-normalization"
|
||||
version = "0.1.19"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d54590932941a9e9266f0832deed84ebe1bf2e4c9e4a3554d393d18f5e854bf9"
|
||||
dependencies = [
|
||||
"tinyvec",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-xid"
|
||||
version = "0.2.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
|
||||
|
||||
[[package]]
|
||||
name = "version_check"
|
||||
version = "0.9.4"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
|
||||
|
||||
[[package]]
|
||||
name = "wasi"
|
||||
version = "0.10.0+wasi-snapshot-preview1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1a143597ca7c7793eff794def352d41792a93c481eb1042423ff7ff72ba2c31f"
|
||||
|
||||
[[package]]
|
||||
name = "weezl"
|
||||
version = "0.1.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d8b77fdfd5a253be4ab714e4ffa3c49caf146b4de743e97510c0656cf90f1e8e"
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
||||
version = "0.3.9"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu",
|
||||
"winapi-x86_64-pc-windows-gnu",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
12
Cargo.toml
Normal file
12
Cargo.toml
Normal file
|
|
@ -0,0 +1,12 @@
|
|||
[package]
|
||||
name = "poop-graph"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
lazy_static = "1.4"
|
||||
pdf = "0.7.2"
|
||||
regex = "1.5.5"
|
||||
time = { version = "0.3.9", features = ["formatting", "macros", "parsing"] }
|
||||
190
src/main.rs
Normal file
190
src/main.rs
Normal file
|
|
@ -0,0 +1,190 @@
|
|||
use std::collections::HashMap;
|
||||
|
||||
use lazy_static::lazy_static;
|
||||
use pdf::{primitive::Primitive, content::Operation, backend::Backend};
|
||||
use regex::Regex;
|
||||
use time::Date;
|
||||
|
||||
const POSITION_ERROR_MARGIN: f32 = 2.0;
|
||||
|
||||
lazy_static! {
|
||||
static ref DATE_REGEX: Regex = Regex::new(r"^\d{1,2}/\d{1,2}/\d{4}$").unwrap();
|
||||
static ref VALUE_REGEX: Regex = Regex::new(r"^\d+$").unwrap();
|
||||
static ref WHITESPACE_REGEX: Regex = Regex::new(r"\s+").unwrap();
|
||||
}
|
||||
|
||||
const DATE_PARSE_FORMAT: &[time::format_description::FormatItem] = time::macros::format_description!(
|
||||
"[month padding:none]/[day padding:none]/[year]"
|
||||
);
|
||||
const DATE_DISPLAY_FORMAT: &[time::format_description::FormatItem] = time::macros::format_description!(
|
||||
"[year]-[month]-[day]"
|
||||
);
|
||||
|
||||
#[derive(Debug)]
|
||||
struct DataPoint<'a> {
|
||||
date: Date,
|
||||
values: HashMap<&'a str, u32>,
|
||||
}
|
||||
|
||||
impl<'a> DataPoint<'a> {
|
||||
fn new(text: &DocumentText) -> Result<Self, time::error::Parse> {
|
||||
Ok(Self { date: Date::parse(&text.text, DATE_PARSE_FORMAT)?, values: HashMap::new() })
|
||||
}
|
||||
}
|
||||
|
||||
struct DocumentText {
|
||||
x: f32,
|
||||
y: f32,
|
||||
text: String,
|
||||
}
|
||||
|
||||
struct DocumentIterator<'a> {
|
||||
x: f32,
|
||||
y: f32,
|
||||
operations: Box<dyn Iterator<Item = Operation> + 'a>,
|
||||
}
|
||||
|
||||
impl<'a> DocumentIterator<'a> {
|
||||
fn new<B: Backend>(document: &'a pdf::file::File<B>) -> Self {
|
||||
Self {
|
||||
x: 0.0,
|
||||
y: 0.0,
|
||||
operations: Box::new(
|
||||
document
|
||||
.pages()
|
||||
.filter_map(|page| {
|
||||
Some(page.ok()?.contents.clone()?.operations.into_iter())
|
||||
})
|
||||
.flatten()
|
||||
),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Iterator for DocumentIterator<'a> {
|
||||
type Item = DocumentText;
|
||||
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
for Operation { operator, operands } in self.operations.as_mut() {
|
||||
if operator == "Tm" {
|
||||
if let (Some(x), Some(y)) = (
|
||||
operands.get(4).and_then(extract_number),
|
||||
operands.get(5).and_then(extract_number),
|
||||
) {
|
||||
self.x = x;
|
||||
self.y = y;
|
||||
}
|
||||
} else if operator == "TJ" || operator == "Tj" {
|
||||
if let Some(text) = operands.get(0).and_then(extract_string) {
|
||||
return Some(DocumentText {
|
||||
x: self.x,
|
||||
y: self.y,
|
||||
text,
|
||||
});
|
||||
}
|
||||
}
|
||||
}
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
fn extract_number(p: &Primitive) -> Option<f32> {
|
||||
match p {
|
||||
Primitive::Number(n) => Some(*n),
|
||||
Primitive::Integer(n) => Some(*n as f32),
|
||||
_ => None,
|
||||
}
|
||||
}
|
||||
|
||||
fn extract_string(p: &Primitive) -> Option<String> {
|
||||
let result: Box<dyn AsRef<str>> = match p {
|
||||
Primitive::Array(array) => {
|
||||
let mut acc = String::new();
|
||||
for element in array.iter() {
|
||||
if let Primitive::String(s) = element {
|
||||
acc += s.as_str().ok()?.as_ref();
|
||||
}
|
||||
}
|
||||
Box::new(acc)
|
||||
}
|
||||
Primitive::String(s) => Box::new(s.as_str().ok()?),
|
||||
_ => return None
|
||||
};
|
||||
Some(WHITESPACE_REGEX.replace_all((*result).as_ref().trim(), " ").to_string())
|
||||
}
|
||||
|
||||
fn is_new_column_header(s: &str) -> bool {
|
||||
s.starts_with("Northern") || s.starts_with("Southern")
|
||||
}
|
||||
|
||||
fn main() {
|
||||
let doc = pdf::file::File::open("data.pdf").expect("Failed to read PDF");
|
||||
let mut doc_iter = DocumentIterator::new(&doc).peekable();
|
||||
|
||||
let mut columns: Vec<(String, f32)> = Vec::new();
|
||||
let mut datapoints: Vec<DataPoint> = Vec::new();
|
||||
|
||||
let (mut current_datapoint, mut current_y) = loop {
|
||||
if let Some(text) = doc_iter.next() {
|
||||
if is_new_column_header(&text.text) {
|
||||
let mut column_name = text.text;
|
||||
let column_x = text.x;
|
||||
while let Some(more) = doc_iter.peek() {
|
||||
if is_new_column_header(&more.text) || DATE_REGEX.is_match(&more.text) {
|
||||
columns.push((column_name, column_x));
|
||||
break;
|
||||
}
|
||||
column_name += " ";
|
||||
column_name += &more.text;
|
||||
doc_iter.next();
|
||||
}
|
||||
} else if DATE_REGEX.is_match(&text.text) {
|
||||
break (DataPoint::new(&text).expect("Failed to parse date!"), text.y);
|
||||
}
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
};
|
||||
|
||||
columns.sort_by(|(_, x0), (_, x1)| x0.partial_cmp(x1).unwrap_or(std::cmp::Ordering::Equal));
|
||||
|
||||
for text in doc_iter {
|
||||
if DATE_REGEX.is_match(&text.text) {
|
||||
datapoints.push(std::mem::replace(
|
||||
&mut current_datapoint,
|
||||
DataPoint::new(&text).expect("Failed to parse date!"),
|
||||
));
|
||||
current_y = text.y;
|
||||
} else if VALUE_REGEX.is_match(&text.text) {
|
||||
if (current_y - text.y).abs() > POSITION_ERROR_MARGIN {
|
||||
continue;
|
||||
}
|
||||
if let Some((column, _)) = columns.iter().rev().find(|(_, x)| *x < text.x) {
|
||||
current_datapoint.values.insert(column, text.text.parse().expect("Failed to parse value!"));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
print!("Date");
|
||||
for (column, _) in columns.iter() {
|
||||
print!(",{}", column);
|
||||
}
|
||||
println!();
|
||||
for datapoint in datapoints.iter() {
|
||||
print!(
|
||||
"{}",
|
||||
datapoint
|
||||
.date
|
||||
.format(DATE_DISPLAY_FORMAT)
|
||||
.expect("Failed to format date!")
|
||||
);
|
||||
for (column, _) in columns.iter() {
|
||||
if let Some(val) = datapoint.values.get(&column.as_ref()) {
|
||||
print!(",{}", val);
|
||||
} else {
|
||||
print!(",");
|
||||
}
|
||||
}
|
||||
println!();
|
||||
}
|
||||
}
|
||||
Loading…
Reference in a new issue