xobs/lca2020-pay-it-forward
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Add attributes in markdown for slide generation.

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By default, look for <!-- slide-attributes: xxxx -->.
Whatever 'xxx' is will be added to the section attributes.

You can define your own pattern with 'data-attributes'.
For instance 'data-attributes="^\s*?-- (.*?)$"':
that will be added to the options.

The 'attributes' section is removed from the content of the slide,
so the final markdown doesn't reflect them.
That also means you can add those attributes *anywhere* in the slide

But that allows for *any* attribute to be added for a specifc slide,
like:

- id="plan", for allowing internal link (issue #430)
- data-background="#ff0000"
- data-transition="fade"

You list those attributes on a single line, like

- (default):
` <!-- id="plan" data-background="#ff0000" -->`
- or, with an alternative data-attributes pattern:
` -- id="plan" data-background="#ff0000"`

Again, that line is remove from the final content.
This commit is contained in:
VonC 2013-10-10 08:47:32 +02:00
parent 7da98d8110
commit c51ab74d72
1 changed files with 21 additions and 9 deletions
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30
plugin/markdown/markdown.js
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@ -27,8 +27,9 @@
} }
var DEFAULT_SLIDE_SEPARATOR = '^\n---\n$', var DEFAULT_SLIDE_SEPARATOR = '^\n---\n$',
DEFAULT_NOTES_SEPARATOR = 'note:'; DEFAULT_NOTES_SEPARATOR = 'note:',
DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR = '{_\s*?([^}]+?)}'; DEFAULT_ELEMENT_ATTRIBUTES_SEPARATOR = '{_\s*?([^}]+?)}',
DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR = '^.*?<!-- slide-attributes: (.*?)-->';
/** /**
@ -72,7 +73,7 @@
value = attributes[i].value; value = attributes[i].value;
// disregard attributes that are used for markdown loading/parsing // disregard attributes that are used for markdown loading/parsing
if( /data\-(markdown|separator|vertical|notes)/gi.test( name ) ) continue; if( /data\-(markdown|separator|vertical|notes|attributes)/gi.test( name ) ) continue;
if( value ) { if( value ) {
result.push( name + '=' + value ); result.push( name + '=' + value );
@ -96,6 +97,7 @@
options.separator = options.separator || DEFAULT_SLIDE_SEPARATOR; options.separator = options.separator || DEFAULT_SLIDE_SEPARATOR;
options.notesSeparator = options.notesSeparator || DEFAULT_NOTES_SEPARATOR; options.notesSeparator = options.notesSeparator || DEFAULT_NOTES_SEPARATOR;
options.attributes = options.attributes || ''; options.attributes = options.attributes || '';
options.slideAttributesSeparator = options.slideAttributesSeparator || DEFAULT_SLIDE_ATTRIBUTES_SEPARATOR;
return options; return options;
@ -127,14 +129,17 @@
options = getSlidifyOptions( options ); options = getSlidifyOptions( options );
var separatorRegex = new RegExp( options.separator + ( options.verticalSeparator ? '|' + options.verticalSeparator : '' ), 'mg' ), var separatorRegex = new RegExp( options.separator + ( options.verticalSeparator ? '|' + options.verticalSeparator : '' ), 'mg' ),
horizontalSeparatorRegex = new RegExp( options.separator ); horizontalSeparatorRegex = new RegExp( options.separator ),
slideAttributesSeparatorRegex = new RegExp( options.slideAttributesSeparator, 'm');
var matches, var matches,
lastIndex = 0, lastIndex = 0,
isHorizontal, isHorizontal,
wasHorizontal = true, wasHorizontal = true,
content, content,
sectionStack = []; sectionStack = [],
matchAttributes,
slideAttributes = "";
// iterate until all blocks between separators are stacked up // iterate until all blocks between separators are stacked up
while( matches = separatorRegex.exec( markdown ) ) { while( matches = separatorRegex.exec( markdown ) ) {
@ -176,16 +181,22 @@
markdownSections += '<section '+ options.attributes +'>'; markdownSections += '<section '+ options.attributes +'>';
sectionStack[i].forEach( function( child ) { sectionStack[i].forEach( function( child ) {
markdownSections += '<section data-markdown>' + createMarkdownSlide( child, options ) + '</section>'; matchAttributes = slideAttributesSeparatorRegex.exec(child);
slideAttributes = matchAttributes ? matchAttributes[1] : "";
child = matchAttributes ? child.replace(slideAttributesSeparatorRegex,"") : child
markdownSections += '<section ' + slideAttributes + ' data-markdown>' + createMarkdownSlide( child, options ) + '</section>';
} ); } );
markdownSections += '</section>'; markdownSections += '</section>';
} }
else { else {
markdownSections += '<section '+ options.attributes +' data-markdown>' + createMarkdownSlide( sectionStack[i], options ) + '</section>'; matchAttributes = slideAttributesSeparatorRegex.exec(sectionStack[i]);
slideAttributes = matchAttributes ? matchAttributes[1] : "";
content = matchAttributes ? sectionStack[i].replace(slideAttributesSeparatorRegex,"") : sectionStack[i]
//console.log('Slide attributes ' + options.slideAttributesSeparator + ' => ' + slideAttributes)
markdownSections += '<section '+ options.attributes + ' ' + slideAttributes +' data-markdown>' + createMarkdownSlide( content, options ) + '</section>';
} }
} }
return markdownSections; return markdownSections;
} }
@ -223,7 +234,8 @@
separator: section.getAttribute( 'data-separator' ), separator: section.getAttribute( 'data-separator' ),
verticalSeparator: section.getAttribute( 'data-vertical' ), verticalSeparator: section.getAttribute( 'data-vertical' ),
notesSeparator: section.getAttribute( 'data-notes' ), notesSeparator: section.getAttribute( 'data-notes' ),
attributes: getForwardedAttributes( section ) attributes: getForwardedAttributes( section ),
slideAttributesSeparator: section.getAttribute( 'data-attributes' ),
}); });
} }