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netsurf: rewrite wrapper.ci func in pure zig

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This commit is contained in:
Pierre Tachoire
2024-01-08 15:13:07 +01:00
parent 18901ea72b
commit 9f77ba01bb
1 changed files with 80 additions and 20 deletions
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100
src/netsurf.zig
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@@ -1,7 +1,8 @@
const std = @import("std");
const c = @cImport({
@cInclude("wrapper.h");
@cInclude("dom/dom.h");
@cInclude("dom/bindings/hubbub/parser.h");
});
// Vtable
@@ -1284,19 +1285,52 @@ fn documentHTMLVtable(doc_html: *DocumentHTML) c.dom_html_document_vtable {
// The allocator is required to create a null terminated string from filename.
// The buffer is freed by the function.
// The caller is responsible for closing the document.
pub fn documentHTMLParseFromFileAlloc(allocator: std.mem.Allocator, filename: []const u8) !*DocumentHTML {
const cstr = try allocator.dupeZ(u8, filename);
defer allocator.free(cstr);
return documentHTMLParseFromFile(cstr);
// DEPRECATED
pub fn documentHTMLParseFromFileAlloc(_: std.mem.Allocator, filename: []const u8) !*DocumentHTML {
return documentHTMLParseFromFile(filename);
}
// documentHTMLParseFromFile parses the given filename c string (ie. with 0 sentinel).
// documentHTMLParseFromFile parses the given HTML file.
// The caller is responsible for closing the document.
pub fn documentHTMLParseFromFile(filename: [:0]const u8) !*DocumentHTML {
// create a null terminated c string.
const doc = c.wr_create_doc_dom_from_file(filename.ptr);
if (doc == null) return error.ParserError;
pub fn documentHTMLParseFromFile(filename: []const u8) !*DocumentHTML {
const file = try std.fs.openFileAbsolute(filename, .{});
defer file.close();
var parser: ?*c.dom_hubbub_parser = undefined;
var doc: ?*c.dom_document = undefined;
var err: c.hubbub_error = undefined;
var params = c.dom_hubbub_parser_params{
.enc = null,
.fix_enc = true,
.msg = null,
.script = null,
.enable_script = false,
.ctx = null,
.daf = null,
};
err = c.dom_hubbub_parser_create(&params, &parser, &doc);
if (err != c.DOM_HUBBUB_OK) {
return error.ParserError;
}
defer c.dom_hubbub_parser_destroy(parser);
var buffer: [1024 * 4]u8 = undefined;
var ln = buffer.len;
while (ln == buffer.len) {
ln = try file.readAll(&buffer);
err = c.dom_hubbub_parser_parse_chunk(parser, &buffer, ln);
if (err != c.DOM_HUBBUB_OK) {
return error.ParserError;
}
}
err = c.dom_hubbub_parser_completed(parser);
if (err != c.DOM_HUBBUB_OK) {
return error.ParserError;
}
return @as(*DocumentHTML, @ptrCast(doc.?));
}
@@ -1304,18 +1338,44 @@ pub fn documentHTMLParseFromFile(filename: [:0]const u8) !*DocumentHTML {
// The allocator is required to create a null terminated string.
// The c string allocated is freed by the function.
// The caller is responsible for closing the document.
pub fn documentHTMLParseFromStrAlloc(allocator: std.mem.Allocator, str: []const u8) !*DocumentHTML {
// create a null terminated c string.
const cstr = try allocator.dupeZ(u8, str);
defer allocator.free(cstr);
return documentHTMLParseFromStr(cstr);
// DEPRECATED
pub fn documentHTMLParseFromStrAlloc(_: std.mem.Allocator, str: []const u8) !*DocumentHTML {
return documentHTMLParseFromStr(str);
}
// documentHTMLParseFromStr parses the given c string (ie. with 0 sentinel).
// documentHTMLParseFromStr parses the given HTML string.
// The caller is responsible for closing the document.
pub fn documentHTMLParseFromStr(cstr: [:0]const u8) !*DocumentHTML {
const doc = c.wr_create_doc_dom_from_string(cstr.ptr);
if (doc == null) return error.ParserError;
pub fn documentHTMLParseFromStr(str: []const u8) !*DocumentHTML {
var parser: ?*c.dom_hubbub_parser = undefined;
var doc: ?*c.dom_document = undefined;
var err: c.hubbub_error = undefined;
var params = c.dom_hubbub_parser_params{
.enc = null,
.fix_enc = true,
.msg = null,
.script = null,
.enable_script = false,
.ctx = null,
.daf = null,
};
err = c.dom_hubbub_parser_create(&params, &parser, &doc);
if (err != c.DOM_HUBBUB_OK) {
return error.ParserError;
}
defer c.dom_hubbub_parser_destroy(parser);
err = c.dom_hubbub_parser_parse_chunk(parser, str, str.len);
if (err != c.DOM_HUBBUB_OK) {
return error.ParserError;
}
err = c.dom_hubbub_parser_completed(parser);
if (err != c.DOM_HUBBUB_OK) {
return error.ParserError;
}
return @as(*DocumentHTML, @ptrCast(doc.?));
}