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Unable to show syntax highlighting through Pygments

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cricrazy

Jun 23, 2016; 7:35pm

Unable to show syntax highlighting through Pygments

3 posts

I stumbled upon AsciiDoctor from one of the youtube videos by Dan Allen. I have been looking for a better way to write technical documentation. AsciiDoctor is an incredible tool. In the past I had tried Markdown, but gave up on it, due to limited options. I have been using AsciiDoctor ever since for many documents. Recently, I came across an issue with the syntax highlighting. (there was a similar issue reported back in 2013 (Issue), I don't know if these are related.

Whenever I use pygments theme like Monokai or Jellybeans. It has some issues with background color. It is not with all source files, C works fine, but IDL does not work. Can you please help? (I am also attaching the asciidoc text).

:source-highlighter: pygments
:pygments-style: monokai
:pygments-css: class

[source,c]
----
static void Redisplay(Widget w, XEvent *event, Region region)
{
  for (i=0; i<array->composite.num_children; i++) {
    RectObj	child = (RectObj)array->composite.children[i];
    RectObjClass	roclass;
    if (!XtIsManaged((Widget)child) || XtIsWidget(child))
      continue;
    if (region)
      if (!XRectInRegion(region, child->rectangle.x, child->rectangle.y,
			 child->rectangle.width, child->rectangle.height))
	continue;

    roclass = (RectObjClass)child->object.widget_class;

    if (roclass->rect_class.expose)
      roclass->rect_class.expose((Widget)child, event, region);
  }
}
----

[source, IDL]
----
a = {,a:0.}
b = {,b:''}
c = [a, b]

FOR i = upc1, upc2 DO BEGIN <1>
    data_cols = data_cols + ",d" +STRING_COMP (i+1) + ":0."
    tokens = STRPARSE (upc(i), DELIM = !NL)
    columns1 = [columns1, tokens(0)] 
    columns2 = [columns2, props(tokens(1) - 1).property]
    columns3 = [columns3, tokens(1)]
    formats = [formats, dformat]
ENDFOR
----

mojavelinux

Jun 23, 2016; 8:10pm

Re: Unable to show syntax highlighting through Pygments

Administrator

2681 posts

A style from the default Asciidoctor stylesheet is overriding the general text color specified by the Pygments theme. Unfortunately, this is extremely tricky to get right because we have so many permutations we're trying to cover.

As a workaround, you can fix it by adding the following to a docinfo file:

<style>

.listingblock .pygments code { color: #f8f8f2 }

</style>

Right now, the style on code (and pre>code) from the default stylesheet is winning out.

To fix this, we'll need to strengthen the CSS rule that specifies the general color. I have submitted a pull request that implements this solution.

https://github.com/asciidoctor/asciidoctor/pull/1802

-Dan

On Thu, Jun 23, 2016 at 1:35 PM, cricrazy [via Asciidoctor :: Discussion] <[hidden email]> wrote:

I stumbled upon AsciiDoctor from one of the youtube videos by Dan Allen. I have been looking for a better way to write technical documentation. AsciiDoctor is an incredible tool. In the past I had tried Markdown, but gave up on it, due to limited options. I have been using AsciiDoctor ever since for many documents. Recently, I came across an issue with the syntax highlighting. (there was a similar issue reported back in 2013 (Issue), I don't know if these are related.

Whenever I use pygments theme like Monokai or Jellybeans. It has some issues with background color. It is not with all source files, C works fine, but IDL does not work. Can you please help? (I am also attaching the asciidoc text).
:source-highlighter: pygments
:pygments-style: monokai
:pygments-css: class

[source,c]
----
static void Redisplay(Widget w, XEvent *event, Region region)
{
  for (i=0; i<array->composite.num_children; i++) {
    RectObj	child = (RectObj)array->composite.children[i];
    RectObjClass	roclass;
    if (!XtIsManaged((Widget)child) || XtIsWidget(child))
      continue;
    if (region)
      if (!XRectInRegion(region, child->rectangle.x, child->rectangle.y,
			 child->rectangle.width, child->rectangle.height))
	continue;

    roclass = (RectObjClass)child->object.widget_class;

    if (roclass->rect_class.expose)
      roclass->rect_class.expose((Widget)child, event, region);
  }
}
----

[source, IDL]
----
a = {,a:0.}
b = {,b:''}
c = [a, b]

FOR i = upc1, upc2 DO BEGIN <1>
    data_cols = data_cols + ",d" +STRING_COMP (i+1) + ":0."
    tokens = STRPARSE (upc(i), DELIM = !NL)
    columns1 = [columns1, tokens(0)] 
    columns2 = [columns2, props(tokens(1) - 1).property]
    columns3 = [columns3, tokens(1)]
    formats = [formats, dformat]
ENDFOR
----
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