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Use early returns for sphinxHtmlToMarkdown member processing (#590)
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This PR is a follow-up from #584.

None of the logic is changed, only the control flow. This uses early
returns to make it more clear how each distinct API type is handled. It
also DRYs this code:

```typescript
        const priorPythonApiType = meta.python_api_type;
        if (!priorPythonApiType) {
          meta.python_api_type = python_type;
          meta.python_api_name = id;
        }
```

---------

Co-authored-by: Eric Arellano <[email protected]>
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@arnaucasau @Eric-Arellano
arnaucasau and Eric-Arellano authored Jan 8, 2024
1 parent 7bb47a6 commit 56a9c72
Showing 1 changed file with 59 additions and 65 deletions.
124 changes: 59 additions & 65 deletions scripts/lib/sphinx/sphinxHtmlToMarkdown.ts
View file
Original file line number Diff line number Diff line change
Expand Up @@ -81,38 +81,40 @@ export async function sphinxHtmlToMarkdown(options: {
$child.find(".viewcode-link").closest("a").remove();
const id = $dl.find("dt").attr("id") || "";

if (child.name === "dt" && $dl.hasClass("class")) {
if (!meta.python_api_type) {
meta.python_api_type = "class";
meta.python_api_name = id;
}
const python_type = getPythonApiType($dl);

if (child.name !== "dt" || !python_type) {
return `<div>${$child.html()}</div>`;
}

const priorPythonApiType = meta.python_api_type;
if (!priorPythonApiType) {
meta.python_api_type = python_type;
meta.python_api_name = id;
}

if (python_type == "class") {
findByText($, $main, "em.property", "class").remove();
return `<span class="target" id="${id}"/><p><code>${$child.html()}</code></p>`;
} else if (child.name === "dt" && $dl.hasClass("property")) {
if (!meta.python_api_type) {
meta.python_api_type = "property";
meta.python_api_name = id;
}

if (id) {
$dl.siblings("h1").text(getLastPartFromFullIdentifier(id));
}
if (python_type == "property") {
if (!priorPythonApiType && id) {
$dl.siblings("h1").text(getLastPartFromFullIdentifier(id));
}

findByText($, $main, "em.property", "property").remove();
const signature = $child.find("em").text()?.replace(/^:\s+/, "");
if (signature.trim().length === 0) return;
return `<span class="target" id='${id}'/><p><code>${signature}</code></p>`;
} else if (child.name === "dt" && $dl.hasClass("method")) {
if (!meta.python_api_type) {
meta.python_api_type = "method";
meta.python_api_name = id;
if (id) {
}

if (python_type == "method") {
if (id) {
if (!priorPythonApiType) {
$dl.siblings("h1").text(getLastPartFromFullIdentifier(id));
}
} else {
// Inline methods
if (id) {
} else {
// Inline methods
$(`<h3>${getLastPartFromFullIdentifier(id)}</h3>`).insertBefore(
$dl,
);
Expand All @@ -121,11 +123,10 @@ export async function sphinxHtmlToMarkdown(options: {

findByText($, $main, "em.property", "method").remove();
return `<span class="target" id='${id}'/><p><code>${$child.html()}</code></p>`;
} else if (child.name === "dt" && $dl.hasClass("attribute")) {
if (!meta.python_api_type) {
meta.python_api_type = "attribute";
meta.python_api_name = id;
}

if (python_type == "attribute") {
if (!priorPythonApiType) {
if (id) {
$dl.siblings("h1").text(getLastPartFromFullIdentifier(id));
}
Expand All @@ -134,54 +135,47 @@ export async function sphinxHtmlToMarkdown(options: {
const signature = $child.find("em").text()?.replace(/^:\s+/, "");
if (signature.trim().length === 0) return;
return `<span class="target" id='${id}'/><p><code>${signature}</code></p>`;
} else {
// The attribute is embedded on the class
const text = $child.text();
const equalIndex = text.indexOf("=");
const colonIndex = text.indexOf(":");
let name = text;
let type: string | undefined;
let value: string | undefined;
if (colonIndex > 0 && equalIndex > 0) {
name = text.substring(0, colonIndex);
type = text.substring(colonIndex + 1, equalIndex);
value = text.substring(equalIndex);
} else if (colonIndex > 0) {
name = text.substring(0, colonIndex);
type = text.substring(colonIndex + 1);
} else if (equalIndex > 0) {
name = text.substring(0, equalIndex);
value = text.substring(equalIndex);
}
const output = [
`<span class="target" id='${id}'/><h3>${name}</h3>`,
];
if (type) {
output.push(`<p><code>${type}</code></p>`);
}
if (value) {
output.push(`<p><code>${value}</code></p>`);
}
return output.join("\n");
}
} else if (child.name === "dt" && $dl.hasClass("function")) {
if (!meta.python_api_type) {
meta.python_api_type = "function";
meta.python_api_name = id;

// Else, the attribute is embedded on the class
const text = $child.text();
const equalIndex = text.indexOf("=");
const colonIndex = text.indexOf(":");
let name = text;
let type: string | undefined;
let value: string | undefined;
if (colonIndex > 0 && equalIndex > 0) {
name = text.substring(0, colonIndex);
type = text.substring(colonIndex + 1, equalIndex);
value = text.substring(equalIndex);
} else if (colonIndex > 0) {
name = text.substring(0, colonIndex);
type = text.substring(colonIndex + 1);
} else if (equalIndex > 0) {
name = text.substring(0, equalIndex);
value = text.substring(equalIndex);
}
const output = [`<span class="target" id='${id}'/><h3>${name}</h3>`];
if (type) {
output.push(`<p><code>${type}</code></p>`);
}
if (value) {
output.push(`<p><code>${value}</code></p>`);
}
return output.join("\n");
}

if (python_type === "function") {
findByText($, $main, "em.property", "function").remove();
return `<span class="target" id="${id}"/><p><code>${$child.html()}</code></p>`;
} else if (child.name === "dt" && $dl.hasClass("exception")) {
if (!meta.python_api_type) {
meta.python_api_type = "exception";
meta.python_api_name = id;
}
}

if (python_type === "exception") {
findByText($, $main, "em.property", "exception").remove();
return `<span class="target" id='${id}'/><p><code>${$child.html()}</code></p>`;
return `<span class="target" id="${id}"/><p><code>${$child.html()}</code></p>`;
}

return `<div>${$child.html()}</div>`;
throw new Error(`Unhandled Python type: ${python_type}`);
})
.join("\n");

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