anydoc 0.2.4

Convert documents (doc, docx, odt, rtf, epub, pdf, presentations, spreadsheets, csv) to GitHub-Flavored Markdown
Documentation 
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use super::*;
use crate::package::xml::{Element, parse_xml};

fn omml(body: &str) -> String {
    let xml = format!(
        r#"<m:oMath xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math">{body}</m:oMath>"#
    );
    let root = parse_xml(xml.as_bytes()).unwrap();
    omath_to_tex(root.child_elems().next().unwrap())
}

fn mathml(body: &str) -> String {
    let xml = format!(r#"<math xmlns="http://www.w3.org/1998/Math/MathML">{body}</math>"#);
    let root: Element = parse_xml(xml.as_bytes()).unwrap();
    mathml_to_tex(root.child_elems().next().unwrap())
}

#[test]
fn omml_structures_map_to_latex_commands() {
    let tex = omml(concat!(
        "<m:f><m:num><m:r><m:t>a</m:t></m:r></m:num><m:den><m:r><m:t>b</m:t></m:r></m:den></m:f>",
        "<m:sSup><m:e><m:r><m:t>x</m:t></m:r></m:e><m:sup><m:r><m:t>2</m:t></m:r></m:sup></m:sSup>",
        "<m:rad><m:radPr><m:degHide m:val=\"1\"/></m:radPr><m:deg/><m:e><m:r><m:t>y</m:t></m:r></m:e></m:rad>",
        "<m:nary><m:naryPr><m:chr m:val=\"∑\"/><m:limLoc m:val=\"undOvr\"/></m:naryPr>",
        "<m:sub><m:r><m:t>i=1</m:t></m:r></m:sub><m:sup><m:r><m:t>n</m:t></m:r></m:sup>",
        "<m:e><m:r><m:t>i</m:t></m:r></m:e></m:nary>",
        "<m:d><m:dPr><m:begChr m:val=\"⟨\"/><m:endChr m:val=\"⟩\"/></m:dPr><m:e><m:r><m:t>α</m:t></m:r></m:e></m:d>",
        "<m:func><m:fName><m:r><m:rPr><m:sty m:val=\"p\"/></m:rPr><m:t>sin</m:t></m:r></m:fName>",
        "<m:e><m:r><m:t>θ</m:t></m:r></m:e></m:func>",
    ));
    assert_eq!(
        tex,
        "\\frac{a}{b}x^{2}\\sqrt{y}\\sum_{i=1}^{n}{i}\\left\\langle\\alpha\\right\\rangle\\sin{\\theta}"
    );
}

#[test]
fn omml_normal_text_and_styled_alphanumerics() {
    let tex = omml(concat!(
        "<m:r><m:rPr><m:nor/></m:rPr><m:t>for all </m:t></m:r>",
        "<m:r><m:t>𝐱 ∈ ℝ</m:t></m:r>",
    ));
    assert_eq!(tex, "\\text{for all }\\mathbf{x} \\in \\mathbb{R}");
}

#[test]
fn omml_rtf_shaped_tree_reads_values_from_text() {
    // rtf math destinations carry a property value as element text, a run's
    // text directly in the run, and run properties as numbered children.
    let tex = omml(concat!(
        "<m:f><m:fPr><m:type>lin</m:type></m:fPr>",
        "<m:num><m:r>a</m:r></m:num><m:den><m:r><m:sty>0</m:sty>b</m:r></m:den></m:f>",
    ));
    assert_eq!(tex, "{a}/{\\mathrm{b}}");
}

#[test]
fn mathml_prefers_a_tex_annotation_and_drops_the_rest() {
    let tex = mathml(concat!(
        "<semantics><mrow><mi>x</mi><mo>=</mo><mn>1</mn></mrow>",
        "<annotation encoding=\"application/x-tex\">x = 1</annotation>",
        "<annotation encoding=\"StarMath 5.0\">x = 1</annotation></semantics>",
    ));
    assert_eq!(tex, "x = 1");
}

#[test]
fn mathml_presentation_tree_converts() {
    let tex = mathml(concat!(
        "<mrow><mi>f</mi><mo>⁡</mo><mfenced><mi>x</mi></mfenced><mo>=</mo>",
        "<munderover><mo>∑</mo><mrow><mi>k</mi><mo>=</mo><mn>0</mn></mrow><mi>∞</mi></munderover>",
        "<mfrac><msup><mi>x</mi><mi>k</mi></msup><mrow><mi>k</mi><mo>!</mo></mrow></mfrac>",
        "<mo>+</mo><msqrt><mi>π</mi></msqrt>",
        "<mover><mi>v</mi><mo>→</mo></mover><mi>sin</mi><mtext>for</mtext></mrow>",
    ));
    assert_eq!(
        tex,
        "f\\left(x\\right)=\\sum_{k=0}^{\\infty}\\frac{x^{k}}{k!}+\\sqrt{\\pi}\\vec{v}\\sin\\text{for}"
    );
}

#[test]
fn mathml_display_attribute_selects_block_layout() {
    let xml =
        r#"<math xmlns="http://www.w3.org/1998/Math/MathML" display="block"><mi>x</mi></math>"#;
    let root = parse_xml(xml.as_bytes()).unwrap();
    assert!(mathml_is_display(root.child_elems().next().unwrap()));
}