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| author | ptmcg <ptmcg@austin.rr.com> | 2023-04-18 21:43:32 -0500 |
|---|---|---|
| committer | ptmcg <ptmcg@austin.rr.com> | 2023-04-18 21:43:32 -0500 |
| commit | 0bd38f293581808bdcaede1d6d98dae2376b2094 (patch) | |
| tree | caeb34219937bb20e749979d0fffcb6031697be9 | |
| parent | 063c9404a850174c566a5bc63f32f8c2c9fbe8dd (diff) | |
| download | pyparsing-git-0bd38f293581808bdcaede1d6d98dae2376b2094.tar.gz | |
Add test case for PR #479
| -rw-r--r-- | tests/test_diagram.py | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/tests/test_diagram.py b/tests/test_diagram.py index 1b15579..62a7a91 100644 --- a/tests/test_diagram.py +++ b/tests/test_diagram.py @@ -210,6 +210,102 @@ class TestRailroadDiagrams(unittest.TestCase): tags = "<html> </html> <head> </head> <body> </body>".split() assert not any(tag in diag_str for tag in tags) + def test_kwargs_pass_thru_create_diagram(self): + from io import StringIO + # Creates a simple diagram with a blue body and + # various other railroad features colored with + # a complete disregard for taste + + # Very simple grammar for demo purposes + salutation = pp.Word(pp.alphas).set_name("salutation") + subject = pp.rest_of_line.set_name("subject") + parse_grammar = salutation + subject + + # This is used to turn off the railroads + # definition of DEFAULT_STYLE. + # If this is set to 'None' the default style + # will be written as part of each diagram + # and will you will not be able to set the + # css style globally and the string 'expStyle' + # will have no effect. + # There is probably a PR to railroad_diagram to + # remove some cruft left in the SVG. + DEFAULT_STYLE = "" + + # CSS Code to be placed into head of the html file + expStyle = """ + <style type="text/css"> + + body { + background-color: blue; + } + + .railroad-heading { + font-family: monospace; + color: bisque; + } + + svg.railroad-diagram { + background-color: hsl(264,45%,85%); + } + svg.railroad-diagram path { + stroke-width: 3; + stroke: green; + fill: rgba(0,0,0,0); + } + svg.railroad-diagram text { + font: bold 14px monospace; + text-anchor: middle; + white-space: pre; + } + svg.railroad-diagram text.diagram-text { + font-size: 12px; + } + svg.railroad-diagram text.diagram-arrow { + font-size: 16px; + } + svg.railroad-diagram text.label { + text-anchor: start; + } + svg.railroad-diagram text.comment { + font: italic 12px monospace; + } + svg.railroad-diagram g.non-terminal text { + /*font-style: italic;*/ + } + svg.railroad-diagram rect { + stroke-width: 3; + stroke: black; + fill: hsl(55, 72%, 69%); + } + svg.railroad-diagram rect.group-box { + stroke: rgb(33, 8, 225); + stroke-dasharray: 10 5; + fill: none; + } + svg.railroad-diagram path.diagram-text { + stroke-width: 3; + stroke: black; + fill: white; + cursor: help; + } + svg.railroad-diagram g.diagram-text:hover path.diagram-text { + fill: #eee; + } + </style> + """ + + # the 'css=DEFAULT_STYLE' or 'css=""' is needed to turn off railroad_diagrams styling + diag_html_capture = StringIO() + parse_grammar.create_diagram( + diag_html_capture, + vertical=6, + show_results_names=True, + css=DEFAULT_STYLE, + head=expStyle + ) + + self.assertIn(expStyle, diag_html_capture.getvalue()) if __name__ == "__main__": unittest.main() |