efforting.tech/nodejs.esm-library
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Improved dispatchers with richer results and added predicate and regular expression based dispatchers

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This commit is contained in:
Mikael Lövqvist
2026-04-12 19:12:00 +02:00
parent 225990b22d
commit cf1abadfc9
8 changed files with 173 additions and 28 deletions
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45
source/text/basic-tree.mjs
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@@ -1,19 +1,36 @@
import { string_has_contents, indented_line_iterator } from '@efforting.tech/data/string-utilities';
import * as CF from '@efforting.tech/data/field-configuration-factories';
import { Text_Settings } from '@efforting.tech/data/string-utilities';
export class Text_Node {
constructor(text_settings, line=undefined, indent=0, line_no=undefined, index=undefined, raw=undefined, parent=undefined) {
Object.assign(this, { text_settings, line, indent, line_no, index, raw, parent, children: [] });
export const Text_Tree_Settings = new CF.Schema({
//BUG - there is currently no way (I think) to put defaults into a sub schema - this should be fixed
text: Text_Settings,
trim_head: CF.boolean(false, 'Trim the empty lines from the head of a node'),
trim_tail: CF.boolean(false, 'Trim the empty lines from the tail of a node'),
trim_lines: CF.boolean(false, 'Trim lines'),
}, 'Text tree settings');
export class Text_Tree_Node {
constructor(text_tree_settings, line=undefined, indent=0, line_no=undefined, index=undefined, raw=undefined, parent=undefined) {
Object.assign(this, { text_tree_settings, line, indent, line_no, index, raw, parent, children: [] });
}
static from_string(text_settings, str) {
get has_line() {
return string_has_contents(this.line);
}
const root = new this(text_settings);
static from_string(text_tree_settings, str) {
const root = new this(text_tree_settings);
const { trim_head, trim_tail, trim_lines } = text_tree_settings;
// NOTE: This first Text_Node is not added to the tree, it serves as an initial cursor only.
let current = new this(root.text_settings, undefined, 0, undefined, undefined, undefined, root);
let current = new this(root.text_tree_settings, undefined, 0, undefined, undefined, undefined, root);
for (const line_info of indented_line_iterator(text_settings, str)) {
for (const line_info of indented_line_iterator(text_tree_settings.text, str)) {
// TODO: Implement other variants than inherit-from-previous
const indent = string_has_contents(line_info.line) ? line_info.indent : current.indent;
@@ -21,14 +38,14 @@ export class Text_Node {
const delta_indent = indent - current.indent;
if (delta_indent == 0) {
const pending = new Text_Node(current.text_settings, undefined, current.indent, undefined, undefined, undefined, current.parent); // Partial insertion - same level
const pending = new this(current.text_tree_settings, undefined, current.indent, undefined, undefined, undefined, current.parent); // Partial insertion - same level
if (current.parent) {
current.parent.children.push(pending);
}
current = pending;
} else if (delta_indent > 0) {
for (let i=0; i<delta_indent; i++) {
const pending = new Text_Node(current.text_settings, undefined, current.indent + 1, undefined, undefined, undefined, current); // Partial insertion
const pending = new this(current.text_tree_settings, undefined, current.indent + 1, undefined, undefined, undefined, current); // Partial insertion
current.children.push(pending);
current = pending;
}
@@ -37,7 +54,7 @@ export class Text_Node {
current = current.parent;
}
const pending = new Text_Node(current.text_settings, undefined, current.indent, undefined, undefined, undefined, current.parent); // Partial insertion - same level
const pending = new this(current.text_tree_settings, undefined, current.indent, undefined, undefined, undefined, current.parent); // Partial insertion - same level
if (current.parent) {
current.parent.children.push(pending);
}
@@ -46,7 +63,7 @@ export class Text_Node {
// Fill in partial insertion
Object.assign(current, {
line: line_info.line,
line: trim_lines ? line_info.line.trim() : line_info.line,
line_no: line_info.line_no,
index: line_info.index,
raw: line_info.raw,
@@ -54,6 +71,12 @@ export class Text_Node {
}
if (trim_head || trim_tail) { //TODO: Implement
throw new Error('Trimming is not implemented'); //TODO: Proper non implemented error
}
return root;
}