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autodoc: better indentation handling when rendering source code (#19422)

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Closes #19293
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HydroH 2024-03-26 06:20:15 +08:00 • committed by GitHub
parent 31a7f22b80
commit ef31d8f48f
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1 changed files with 39 additions and 2 deletions
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41
lib/docs/wasm/main.zig
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@ -938,6 +938,17 @@ fn file_source_html(
var cursor: usize = token_starts[start_token];
var indent: usize = 0;
if (std.mem.lastIndexOf(u8, ast.source[0..cursor], "\n")) |newline_index| {
for (ast.source[newline_index + 1 .. cursor]) |c| {
if (c == ' ') {
indent += 1;
} else {
break;
}
}
}
for (
token_tags[start_token..end_token],
token_starts[start_token..end_token],
@ -947,7 +958,7 @@ fn file_source_html(
if (std.mem.trim(u8, between, " \t\r\n").len > 0) {
if (!options.skip_comments) {
try out.appendSlice(gpa, "<span class=\"tok-comment\">");
try appendEscaped(out, between);
try appendUnindented(out, between, indent);
try out.appendSlice(gpa, "</span>");
}
} else if (between.len > 0) {
@ -955,7 +966,7 @@ fn file_source_html(
if (out.items.len > 0 and out.items[out.items.len - 1] != ' ')
try out.append(gpa, ' ');
} else {
try out.appendSlice(gpa, between);
try appendUnindented(out, between, indent);
}
}
if (tag == .eof) break;
@ -1188,6 +1199,32 @@ fn file_source_html(
}
}
fn unindent(s: []const u8, indent: usize) []const u8 {
var indent_idx: usize = 0;
for (s) |c| {
if (c == ' ' and indent_idx < indent) {
indent_idx += 1;
} else {
break;
}
}
return s[indent_idx..];
}
fn appendUnindented(out: *std.ArrayListUnmanaged(u8), s: []const u8, indent: usize) !void {
var it = std.mem.split(u8, s, "\n");
var is_first_line = true;
while (it.next()) |line| {
if (is_first_line) {
try appendEscaped(out, line);
is_first_line = false;
} else {
try out.appendSlice(gpa, "\n");
try appendEscaped(out, unindent(line, indent));
}
}
}
fn resolve_ident_link(
file_index: Walk.File.Index,
out: *std.ArrayListUnmanaged(u8),