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Add a chroma class wrapper when in "table mode" (#63)

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This commits adds a div wrapper when linenumbers are formatted in table, to get the correct CSS matchers.

This commit also fixes some CSS table issues when tables are put into a larger context with other stylesheets:

* No borders.
* Overflow to fit in potentially narrower containers.

Fixes #62
This commit is contained in:
Bjørn Erik Pedersen 2017-10-14 11:02:40 +02:00 committed by Alec Thomas
parent 4a55aefee6
commit 02c4adc066
1 changed files with 5 additions and 3 deletions
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8
formatters/html/html.go
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@ -155,6 +155,7 @@ func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []*chroma
if wrapInTable {
// List line numbers in its own <td>
fmt.Fprintf(w, "<div%s>\n", f.styleAttr(css, chroma.Background))
fmt.Fprintf(w, "<table%s><tr>", f.styleAttr(css, chroma.LineTable))
fmt.Fprintf(w, "<td%s>\n", f.styleAttr(css, chroma.LineTableTD))
fmt.Fprintf(w, "<pre%s>", f.styleAttr(css, chroma.Background))
@ -212,6 +213,7 @@ func (f *Formatter) writeHTML(w io.Writer, style *chroma.Style, tokens []*chroma
if wrapInTable {
fmt.Fprint(w, "</td></tr></table>\n")
fmt.Fprint(w, "</div>\n")
}
if f.standalone {
@ -317,10 +319,10 @@ func (f *Formatter) styleToCSS(style *chroma.Style) map[chroma.TokenType]string
classes[chroma.Background] += f.tabWidthStyle()
lineNumbersStyle := "; margin-right: 0.4em; padding: 0 0.4em 0 0.4em;"
classes[chroma.LineNumbers] += lineNumbersStyle
classes[chroma.LineNumbersTable] += lineNumbersStyle + "; display: block"
classes[chroma.LineNumbersTable] += lineNumbersStyle + " display: block;"
classes[chroma.LineHighlight] += "; display: block; width: 100%"
classes[chroma.LineTable] += "; border-spacing: 0; padding: 0; margin: 0;"
classes[chroma.LineTableTD] += "; vertical-align: top; padding: 0; margin: 0;"
classes[chroma.LineTable] += "; border-spacing: 0; padding: 0; margin: 0; border: 0; width: 100%; overflow: auto; display: block;"
classes[chroma.LineTableTD] += "; vertical-align: top; padding: 0; margin: 0; border: 0;"
return classes
}