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Add support for enable_line_numbers, start_line_numbers_at and highlight_lines_extra in code blocks #113

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Add support for enable_line_numbers, start_line_numbers_at and highlight_lines_extra in code blocks #113

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58 changes: 58 additions & 0 deletions parser/CodeBlockNode.php
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,64 @@ public function toSyntax()
if (!empty($this->data['attrs']['data-filename'])) {
$openingTag .= ' ' . $this->data['attrs']['data-filename'];
}
$extraTag = '';
if (isset($this->data['attrs']['data-sln-old']))
{
$sln_old = $this->data['attrs']['data-sln-old'];
if (is_numeric($sln_old))
{
$sln_old = (int) $sln_old;
}
else
{
$sln_old = 1;
}
}
if (isset($this->data['attrs']['data-sln']))
{
$start_line_numbers_at = $this->data['attrs']['data-sln'];
if (is_numeric($start_line_numbers_at))
{
$start_line_numbers_at = (int) $start_line_numbers_at;
if ($start_line_numbers_at > 0)
$extraTag .= 'enable_line_numbers="true", ';
else
$extraTag .= 'enable_line_numbers="false", ';
$extraTag .= 'start_line_numbers_at="' . abs($start_line_numbers_at) .'"';
}
else
{
$extraTag = 'enable_line_numbers="false"';
}
}
if (isset($this->data['attrs']['data-hle']))
{
$highlight_lines_extra = $this->data['attrs']['data-hle'];
$arr = explode(',', $highlight_lines_extra);
$str = '';
foreach($arr as $val)
{
if ($str) $str .= ',';
if (is_numeric($val))
{
$ival = (int) $val;
if ($sln_old > 0 && $ival > 0)
$str .= $ival - $sln_old + 1;
else
$str .= abs($ival);
}
}
if ($str)
{
if (!$extraTag)
$extraTag = '[';
else
$extraTag .= ', ';
$extraTag .= 'highlight_lines_extra="' . $str . '"';
}
}
if ($extraTag) $openingTag .= ' [' . $extraTag . ']';

$openingTag .= '>';
return $openingTag . "\n" . $this->data['content'][0]['text'] . "\n</code>";
}
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33 changes: 31 additions & 2 deletions renderer.php
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Original file line number Diff line number Diff line change
Expand Up @@ -335,13 +335,42 @@ public function preformatted($text)
$this->nodestack->drop('preformatted');
}

public function code($text, $lang = null, $file = null)
public function code($text, $lang = null, $file = null, $ext = null)
{
$this->clearBlock();
$node = new Node('code_block');
$node->attr('class', 'code ' . $lang);
$node->attr('data-language', $lang);
$node->attr('data-filename', $file);
$node->attr('data-filename', rtrim($file));
if ($ext)
{
if (isset($ext['start_line_numbers_at']))
{
$start_line_numbers_at = $ext['start_line_numbers_at'];
if (isset($ext['enable_line_numbers']) && ($ext['enable_line_numbers'] === false))
{
$start_line_numbers_at = -$start_line_numbers_at;
}
$node->attr('data-sln', $start_line_numbers_at);
$node->attr('data-sln-old', $start_line_numbers_at);
}
else
{
$node->attr('data-sln-old', '1');
}
if (isset($ext['highlight_lines_extra']))
{
$str = '';
asort($ext['highlight_lines_extra']);
foreach($ext['highlight_lines_extra'] as $hle)
{
if ($str) $str .= ',';
if ($start_line_numbers_at > 0) $hle += $start_line_numbers_at - 1;
$str .= $hle;
}
$node->attr('data-hle', $str);
}
}
$this->nodestack->addTop($node);
$this->cdata(trim($text, "\n"));
$this->nodestack->drop('code_block');
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19 changes: 19 additions & 0 deletions script/nodeviews/CodeView.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,7 +22,20 @@ class CodeView extends AbstractNodeView {
.on('keydown', this.constructor.preventSubmit)
.on('blur', this.dispatchMetaUpdate.bind(this))
.attr('list', 'codelanguages');
this.$sln = jQuery('<input>')
.prop('placeholder', 'start line num at')
.prop('size', '12')
.on('keydown', this.constructor.preventSubmit)
.on('blur', this.dispatchMetaUpdate.bind(this));
this.$slno = jQuery('<input>')
.prop('type', 'hidden');
this.$hle = jQuery('<input>')
.prop('placeholder', 'highlight lines extra')
.prop('size', '40')
.on('keydown', this.constructor.preventSubmit)
.on('blur', this.dispatchMetaUpdate.bind(this));
this.$title.append(this.$fn).append(this.$lang);
this.$title.append(this.$sln).append(this.$slno).append(this.$hle);
this.$fileDom.append(this.$title);
this.$contentWrapper = jQuery('<dd>');
this.$fileDom.append(this.$contentWrapper);
Expand All @@ -34,6 +47,9 @@ class CodeView extends AbstractNodeView {

this.$fn.val(attrs['data-filename']);
this.$lang.val(attrs['data-language']);
this.$sln.val(attrs['data-sln']);
this.$slno.val(attrs['data-sln-old']);
this.$hle.val(attrs['data-hle']);

Object.entries(attrs).forEach(([key, value]) => this.dom.setAttribute(key, value));
}
Expand All @@ -48,6 +64,9 @@ class CodeView extends AbstractNodeView {
const newAttrs = {
'data-filename': this.$fn.val(),
'data-language': this.$lang.val(),
'data-sln': this.$sln.val(),
'data-sln-old': this.$slno.val(),
'data-hle': this.$hle.val(),
};
const nodeStartPos = this.getPos();
this.outerView.dispatch(this.outerView.state.tr.setNodeMarkup(
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3 changes: 3 additions & 0 deletions script/schema.js
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Expand Up @@ -78,6 +78,9 @@ export default function getSpec() {
class: { default: 'code' },
'data-filename': { default: '' },
'data-language': { default: '' },
'data-sln': { default: '' },
'data-sln-old': { default: '' },
'data-hle': { default: '' },
};
codeBlock.toDOM = function toDOM(node) {
return ['pre', node.attrs, 0];
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