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Added support for minimal Markdown "autolinks" #25

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Added support for minimal Markdown "autolinks" #25

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46 changes: 39 additions & 7 deletions imgui_markdown.h
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Original file line number Diff line number Diff line change
Expand Up @@ -436,6 +436,7 @@ namespace ImGui
HAS_SQUARE_BRACKET_OPEN,
HAS_SQUARE_BRACKETS,
HAS_SQUARE_BRACKETS_ROUND_BRACKET_OPEN,
HAS_ANGLE_BRACKET_OPEN,
};
LinkState state = NO_LINK;
TextBlock text;
Expand Down Expand Up @@ -525,7 +526,6 @@ namespace ImGui
inline void Markdown( const char* markdown_, size_t markdownLength_, const MarkdownConfig& mdConfig_ )
{
static const char* linkHoverStart = NULL; // we need to preserve status of link hovering between frames
ImGuiStyle& style = ImGui::GetStyle();
Line line;
Link link;
Emphasis em;
Expand Down Expand Up @@ -598,13 +598,23 @@ namespace ImGui
switch( link.state )
{
case Link::NO_LINK:
if( c == '[' && !line.isHeading ) // we do not support headings with links for now
if( !line.isHeading ) // we do not support headings with links for now
{
link.state = Link::HAS_SQUARE_BRACKET_OPEN;
link.text.start = i + 1;
if( i > 0 && markdown_[i - 1] == '!' )
if( c == '[' )
{
link.isImage = true;
link.state = Link::HAS_SQUARE_BRACKET_OPEN;
link.text.start = i + 1;
if( i > 0 && markdown_[i - 1] == '!' )
{
link.isImage = true;
}
}
else if( c == '<' )
{
link.state = Link::HAS_ANGLE_BRACKET_OPEN;
link.text.start = i + 1;
link.url.start = i + 1;
// I don't think autolinks have image support
}
}
break;
Expand Down Expand Up @@ -681,8 +691,30 @@ namespace ImGui
// reset the link by reinitializing it
link = Link();
line.lastRenderPosition = i;
break;

}
break;

case Link::HAS_ANGLE_BRACKET_OPEN:
if( c == '>' )
{
// reset emphasis status, we do not support emphasis around links for now
em = Emphasis();
// render previous line content
line.lineEnd = link.text.start - 1;
RenderLine( markdown_, line, textRegion, mdConfig_ );
line.leadSpaceCount = 0;
link.text.stop = i;
link.url.stop = i;
line.isUnorderedListStart = false; // the following text shouldn't have bullets
ImGui::SameLine( 0.0f, 0.0f );
textRegion.RenderLinkTextWrapped( markdown_ + link.text.start, markdown_ + link.text.start + link.text.size(), link, markdown_, mdConfig_, &linkHoverStart, false );
ImGui::SameLine( 0.0f, 0.0f );
// reset the link by reinitializing it
link = Link();
line.lastRenderPosition = i;
}
break;
}

// Test to see if we have emphasis styling
Expand Down