Simple templating solution with key-value substitutions in a template - nim templating for bokeh html

nim templating for bokeh html

import streams, nre

#[ This script reads a template file and substitutes according to
key-value pairs. All variables in the template start with $. For 
example $elementid.
]#


type
  Substitutions = seq[tuple[name: string, value: string]]

proc testPage (values: Substitutions): string =
  var
    fs = newFileStream("template.html", fmRead)
    html_temp = fs.readAll()
  for k, v in items(values):
    var regex = re("\\$" & k)
    html_temp = html_temp.replace(regex, v)
  return html_temp

var
  substs: Substitutions = @[(name: "elementid", value: "1099"), (name: "title", value: "MyBokehPlot"), (name: "x", value: "[0, 1, 2]"), (name: "y", value: "[3, 2, 1]")]
echo testPage(substs)