| 1 | # -*- coding: iso8859-1 -*- |
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| 2 | # |
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| 3 | # Author: Juanma Barranquero |
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| 4 | # |
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| 5 | # Ideas and syntax heavily lifted from Jan Finell's LegendBox.py wikiprocessor |
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| 6 | # |
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| 7 | |
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| 8 | ''' |
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| 9 | A Trac wiki-processor to display text as a striped listing. |
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| 10 | |
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| 11 | The output is enclosed in a <pre> block of class "striped", |
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| 12 | and each line in a <div> block of alternating "even-stripe" |
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| 13 | and "odd-stripe" classes. You *must* set this classes up in |
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| 14 | your templates/site_css.cs file, or alternatively use the |
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| 15 | processor arguments "box-style", "even-style" and "odd-style". |
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| 16 | |
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| 17 | The "number" argument allows automatic numbering of lines; |
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| 18 | it accepts three args: a Python-style format (quotes and all), |
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| 19 | the initial number for the first line, and the step between |
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| 20 | numbers. If no format is passed, there is no automatic |
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| 21 | numbering; otherwise, the start and step arguments default to 1. |
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| 22 | |
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| 23 | Example: |
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| 24 | |
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| 25 | {{{ |
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| 26 | #!Striped |
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| 27 | #!number: " %3d ", 100, 10 |
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| 28 | #!box-style: border: thick solid #C0C0C0; margin: 20px; width: 70%; |
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| 29 | #!even-style: background-color: #DAC0DA; |
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| 30 | ...text here... |
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| 31 | }}} |
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| 32 | ''' |
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| 33 | |
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| 34 | from trac.util import escape, lstrip, rstrip |
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| 35 | from StringIO import StringIO |
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| 36 | |
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| 37 | def execute(hdf, text, env): |
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| 38 | |
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| 39 | def clean(text): |
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| 40 | return lstrip(rstrip(text, ' \r'), ' ') |
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| 41 | |
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| 42 | def stylize(style): |
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| 43 | return ' style="%s"' % escape(clean(style)) |
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| 44 | |
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| 45 | bstyle = '' |
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| 46 | estyle = '' |
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| 47 | ostyle = '' |
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| 48 | format = None |
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| 49 | start = 1 |
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| 50 | step = 1 |
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| 51 | line = '' |
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| 52 | offset = 0 |
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| 53 | |
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| 54 | lines = text.split('\n') |
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| 55 | |
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| 56 | for l in lines[:4]: |
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| 57 | if l.startswith('#!number:'): |
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| 58 | args = l[9:].split(',') |
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| 59 | format = escape(clean(args[0]).split('"',2)[1]) |
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| 60 | if len(args) > 1: start = int(args[1]) |
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| 61 | if len(args) > 2: step = int(args[2]) |
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| 62 | elif l.startswith('#!box-style:'): |
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| 63 | bstyle = stylize(l[12:]) |
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| 64 | elif l.startswith('#!even-style:'): |
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| 65 | estyle = stylize(l[13:]) |
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| 66 | elif l.startswith('#!odd-style:'): |
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| 67 | ostyle = stylize(l[12:]) |
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| 68 | else: |
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| 69 | break |
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| 70 | offset += 1 |
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| 71 | |
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| 72 | buf = StringIO() |
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| 73 | buf.write('<pre class="striped"%s>' % bstyle) |
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| 74 | |
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| 75 | for i in range(offset, len(lines)-1): |
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| 76 | if (i - offset) % 2: |
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| 77 | alt = 'odd' |
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| 78 | style = ostyle |
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| 79 | else: |
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| 80 | alt = 'even' |
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| 81 | style = estyle |
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| 82 | if format: |
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| 83 | line = format % start |
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| 84 | start += step |
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| 85 | buf.write('<div class="%s-stripe"%s>%s%s</div>' % (alt, style, line, escape(lines[i]))) |
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| 86 | |
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| 87 | buf.write('</pre>') |
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| 88 | return buf.getvalue() |
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