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[xml] Speedup.

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This commit is contained in:
Jeroen van Rijn
2022-04-28 15:29:00 +02:00
parent 6df21d6a9f
commit 80878264b6
6 changed files with 246 additions and 183 deletions
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core/encoding/xml/helpers.odin
+12 -16
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@@ -1,22 +1,20 @@
package xml
/*
An XML 1.0 / 1.1 parser
Copyright 2021 Jeroen van Rijn <nom@duclavier.com>.
Copyright 2021-2022 Jeroen van Rijn <nom@duclavier.com>.
Made available under Odin's BSD-3 license.
This file contains helper functions.
*/
package xml
/*
Find `tag`'s nth child with a given ident.
*/
find_child_by_ident :: proc(tag: ^Element, ident: string, nth := 0) -> (res: ^Element, found: bool) {
if tag == nil { return nil, false }
// Find parent's nth child with a given ident.
find_child_by_ident :: proc(doc: ^Document, parent_id: Element_ID, ident: string, nth := 0) -> (res: Element_ID, found: bool) {
tag := doc.elements[parent_id]
count := 0
for child in tag.children {
for child_id in tag.children {
child := doc.elements[child_id]
/*
Skip commments. They have no name.
*/
@@ -26,18 +24,16 @@ find_child_by_ident :: proc(tag: ^Element, ident: string, nth := 0) -> (res: ^El
If the ident matches and it's the nth such child, return it.
*/
if child.ident == ident {
if count == nth { return child, true }
if count == nth { return child_id, true }
count += 1
}
}
return nil, false
return 0, false
}
/*
Find an attribute by key.
*/
find_attribute_val_by_key :: proc(tag: ^Element, key: string) -> (val: string, found: bool) {
if tag == nil { return "", false }
// Find an attribute by key.
find_attribute_val_by_key :: proc(doc: ^Document, parent_id: Element_ID, key: string) -> (val: string, found: bool) {
tag := doc.elements[parent_id]
for attr in tag.attribs {
/*