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annotate mercurial/thirdparty/zope/interface/document.py @ 37178:68ee61822182

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thirdparty: port zope.interface to relative imports By using relative imports, we're guaranteed to get modules vendored with Mercurial rather than other random modules that might be in sys.path. My editor strips trailing whitespace on save. So some minor source code cleanup was also performed as part of this commit. # no-check-commit because some modified lines have double newlines Differential Revision: https://phab.mercurial-scm.org/D2930
author Gregory Szorc <gregory.szorc@gmail.com>
date Wed, 21 Mar 2018 19:52:30 -0700
parents 943d77fc07a3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 ##############################################################################
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2 #
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3 # Copyright (c) 2001, 2002 Zope Foundation and Contributors.
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4 # All Rights Reserved.
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5 #
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6 # This software is subject to the provisions of the Zope Public License,
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7 # Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
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8 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
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9 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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10 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
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11 # FOR A PARTICULAR PURPOSE.
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12 #
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13 ##############################################################################
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14 """ Pretty-Print an Interface object as structured text (Yum)
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15
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16 This module provides a function, asStructuredText, for rendering an
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17 interface as structured text.
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18 """
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19
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20 from __future__ import absolute_import
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21
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22 from . import Interface
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23
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24 def asStructuredText(I, munge=0, rst=False):
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25 """ Output structured text format. Note, this will whack any existing
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26 'structured' format of the text.
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27
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28 If `rst=True`, then the output will quote all code as inline literals in
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29 accordance with 'reStructuredText' markup principles.
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30 """
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31
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32 if rst:
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33 inline_literal = lambda s: "``%s``" % (s,)
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34 else:
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35 inline_literal = lambda s: s
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36
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37 r = [inline_literal(I.getName())]
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38 outp = r.append
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39 level = 1
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40
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41 if I.getDoc():
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42 outp(_justify_and_indent(_trim_doc_string(I.getDoc()), level))
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43
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44 bases = [base
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45 for base in I.__bases__
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46 if base is not Interface
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47 ]
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48 if bases:
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49 outp(_justify_and_indent("This interface extends:", level, munge))
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50 level += 1
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51 for b in bases:
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52 item = "o %s" % inline_literal(b.getName())
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53 outp(_justify_and_indent(_trim_doc_string(item), level, munge))
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54 level -= 1
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55
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56 namesAndDescriptions = sorted(I.namesAndDescriptions())
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57
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58 outp(_justify_and_indent("Attributes:", level, munge))
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59 level += 1
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60 for name, desc in namesAndDescriptions:
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61 if not hasattr(desc, 'getSignatureString'): # ugh...
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62 item = "%s -- %s" % (inline_literal(desc.getName()),
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63 desc.getDoc() or 'no documentation')
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64 outp(_justify_and_indent(_trim_doc_string(item), level, munge))
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65 level -= 1
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66
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67 outp(_justify_and_indent("Methods:", level, munge))
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68 level += 1
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69 for name, desc in namesAndDescriptions:
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70 if hasattr(desc, 'getSignatureString'): # ugh...
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71 _call = "%s%s" % (desc.getName(), desc.getSignatureString())
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72 item = "%s -- %s" % (inline_literal(_call),
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73 desc.getDoc() or 'no documentation')
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74 outp(_justify_and_indent(_trim_doc_string(item), level, munge))
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75
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76 return "\n\n".join(r) + "\n\n"
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77
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78
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79 def asReStructuredText(I, munge=0):
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80 """ Output reStructuredText format. Note, this will whack any existing
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81 'structured' format of the text."""
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82 return asStructuredText(I, munge=munge, rst=True)
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83
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84
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85 def _trim_doc_string(text):
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86 """ Trims a doc string to make it format
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87 correctly with structured text. """
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88
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89 lines = text.replace('\r\n', '\n').split('\n')
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90 nlines = [lines.pop(0)]
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91 if lines:
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92 min_indent = min([len(line) - len(line.lstrip())
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93 for line in lines])
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94 for line in lines:
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95 nlines.append(line[min_indent:])
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96
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97 return '\n'.join(nlines)
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98
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99
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100 def _justify_and_indent(text, level, munge=0, width=72):
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101 """ indent and justify text, rejustify (munge) if specified """
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102
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103 indent = " " * level
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104
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105 if munge:
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106 lines = []
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107 line = indent
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108 text = text.split()
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109
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110 for word in text:
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111 line = ' '.join([line, word])
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112 if len(line) > width:
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113 lines.append(line)
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114 line = indent
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115 else:
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116 lines.append(line)
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117
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118 return '\n'.join(lines)
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119
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120 else:
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121 return indent + \
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122 text.strip().replace("\r\n", "\n") .replace("\n", "\n" + indent)