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| -rw-r--r-- | lib/pure/htmlparser.nim | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/lib/pure/htmlparser.nim b/lib/pure/htmlparser.nim index 7bcc501a7..060f0e386 100644 --- a/lib/pure/htmlparser.nim +++ b/lib/pure/htmlparser.nim @@ -17,11 +17,37 @@ ## ## echo loadHtml("mydirty.html") ## -## ## Every tag in the resulting tree is in lower case. ## ## **Note:** The resulting ``PXmlNode`` already uses the ``clientData`` field, ## so it cannot be used by clients of this library. +## +## Example: Transforming hyperlinks +## ================================ +## +## This code demonstrates how you can iterate over all the tags in an HTML file +## and write back the modified version. In this case we look for hyperlinks +## ending with the extension ``.rst`` and convert them to ``.html``. +## +## .. code-block:: nimrod +## +## import htmlparser +## import xmltree # To use '$' for PXmlNode +## import strtabs # To access PXmlAttributes +## import os # To use splitFile +## import strutils # To use cmpIgnoreCase +## +## proc transformHyperlinks() = +## let html = loadHTML("input.html") +## +## for a in html.findAll("a"): +## let href = a.attrs["href"] +## if not href.isNil: +## let (dir, filename, ext) = splitFile(href) +## if cmpIgnoreCase(ext, ".rst") == 0: +## a.attrs["href"] = dir / filename & ".html" +## +## writeFile("output.html", $html) import strutils, streams, parsexml, xmltree, unicode, strtabs |