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RST: Output <object> for SVG images in HTML

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This commit is contained in:
Felix Krause
2016-02-02 20:20:59 +01:00
parent ac1e7a2450
commit facd4c6f19
1 changed files with 17 additions and 7 deletions
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24
lib/packages/docutils/rstgen.nim
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@@ -757,10 +757,15 @@ proc renderImage(d: PDoc, n: PRstNode, result: var string) =
template valid(s): expr =
s.len > 0 and allCharsInSet(s, {'.','/',':','%','_','\\','\128'..'\xFF'} +
Digits + Letters + WhiteSpace)
var options = ""
let
arg = getArgument(n)
isObject = arg.toLower().endsWith(".svg")
var
options = ""
content = ""
var s = getFieldValue(n, "scale")
if s.valid: dispA(d.target, options, " scale=\"$1\"", " scale=$1", [strip(s)])
if s.valid: dispA(d.target, options, if isObject: "" else: " scale=\"$1\"",
" scale=$1", [strip(s)])
s = getFieldValue(n, "height")
if s.valid: dispA(d.target, options, " height=\"$1\"", " height=$1", [strip(s)])
@@ -769,16 +774,21 @@ proc renderImage(d: PDoc, n: PRstNode, result: var string) =
if s.valid: dispA(d.target, options, " width=\"$1\"", " width=$1", [strip(s)])
s = getFieldValue(n, "alt")
if s.valid: dispA(d.target, options, " alt=\"$1\"", "", [strip(s)])
if s.valid:
# <object> displays its content if it cannot render the image
if isObject: dispA(d.target, content, "$1", "", [strip(s)])
else: dispA(d.target, options, " alt=\"$1\"", "", [strip(s)])
s = getFieldValue(n, "align")
if s.valid: dispA(d.target, options, " align=\"$1\"", "", [strip(s)])
if options.len > 0: options = dispF(d.target, "$1", "[$1]", [options])
let arg = getArgument(n)
if arg.valid:
dispA(d.target, result, "<img src=\"$1\"$2 />", "\\includegraphics$2{$1}",
let htmlOut = if isObject:
"<object data=\"$1\" type=\"image/svg+xml\"$2 >" & content & "</object>"
else: "<img src=\"$1\"$2 />"
dispA(d.target, result, htmlOut, "\\includegraphics$2{$1}",
[arg, options])
if len(n) >= 3: renderRstToOut(d, n.sons[2], result)