Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/scripts/wrap/rename.py @ 38:8934ac156ef5

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Allow to build with the PyPI package "clang" instead of "libclang". 1. It seems to be maintained. 2. In the FreeBSD base system there is no pre-built libclang.so. If you need this library you have to install llvm from ports additionally. 2. On FreeBSD there is no pre-built wheel "libclang" with a packaged libclang.so.
author Franz Glasner <fzglas.hg@dom66.de>
date Tue, 23 Sep 2025 10:27:15 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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2
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1 '''
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2 Functions to create C++ names from MuPDF names.
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3 '''
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5 import os
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6
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7 import jlib
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8
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9 from . import util
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12 def snake_to_camel( name, initial):
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13 '''
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14 Converts foo_bar to FooBar or fooBar.
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16 >>> snake_to_camel( 'foo_bar', True)
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17 FooBar
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18 >>> snake_to_camel( 'foo_bar_q__a', False)
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19 fooBarQ_A
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20 '''
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21 # libclang can treat size_t oddly, which we work around when parsing MuPDF
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22 # headers, so we should not be given size_t.
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23 #
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24 assert name != 'size_t'
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25 items = name.split( '_')
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26 ret = ''
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27 for i, item in enumerate( items):
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28 if not item:
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29 item = '_'
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30 elif i or initial:
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31 item = item[0].upper() + item[1:].lower()
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32 ret += item
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33 return ret
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36 # Using camel case in function names seems to result in gcc errors when
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37 # compiling the code created by swig -python. e.g. in _wrap_vthrow_fn()
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38 #
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39 # mupdfcpp_swig.cpp: In function PyObject* _wrap_vthrow_fn(PyObject*, PyObject*)
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40 # mupdfcpp_swig.cpp:88571:15: error: invalid array assignment
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41 # arg3 = *temp;
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44 def internal( name):
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45 '''
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46 Used for internal names, e.g. exception types.
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47 '''
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48 return f'internal_{name}'
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50 def error_class( error_enum):
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51 '''
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52 Name of generated class for MuPDF `FZ_ERROR_*` enum.
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53 '''
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54 assert error_enum.startswith( 'FZ_ERROR_')
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55 return snake_to_camel( error_enum, initial=True)
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57 def c_fn( fnname):
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58 '''
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59 Returns fully-qualified name of MuPDF C function `fnname()`.
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60 '''
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61 return f'::{fnname}'
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62
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63 def ll_fn( fnname):
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64 '''
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65 Returns name of low-level wrapper function for MuPDF C function `fnname()`,
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66 adding a `ctx` arg and converting MuPDF exceptions into C++ exceptions.
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67 '''
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68 assert not fnname.startswith( 'll_'), f'fnname={fnname}'
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69 return f'll_{fnname}'
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71 if name.startswith( 'pdf_'):
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72 return 'p' + name
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73 ret = f'{util.clip( name, "fz_")}'
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74 if ret in ('stdin', 'stdout', 'stderr'):
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75 #log( 'appending underscore to {ret=}')
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76 ret += '_'
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77 return ret
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78
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79 def namespace():
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80 return 'mupdf'
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81
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82 def namespace_ll_fn( fnname):
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83 '''
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84 Returns full-qualified name of low-level wrapper function for MuPDF C
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85 function `fnname()`, adding a `ctx` arg and converting MuPDF exceptions
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86 into C++ exceptions.
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87 '''
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88 return f'{namespace()}::{ll_fn(fnname)}'
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89
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90 def fn( fnname):
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91 '''
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92 Returns name of wrapper function for MuPDF C function `fnname()`, using
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93 wrapper classes for args and return value.
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94 '''
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95 return fnname
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96
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97 def namespace_fn( fnname):
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98 '''
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99 Returns fully-qualified name of wrapper function for MuPDF C function
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100 `fnname()`, using wrapper classes for args and return values.
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101 '''
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102 return f'{namespace()}::{fn(fnname)}'
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103
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104 def class_( structname):
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105 '''
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106 Returns name of class that wraps MuPDF struct `structname`.
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107 '''
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108 structname = util.clip( structname, 'struct ')
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109
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110 # Note that we can't return `structname` here because this will end up with
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111 # SWIG complaining like:
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112 #
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113 # Error: 'pdf_xref' is multiply defined in the generated target language module
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114 #
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115 # - because SWIG internally puts everything into a single namespace.
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116 #
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117 #return structname
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118
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119 return snake_to_camel( structname, initial=True)
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120 if structname.startswith( 'fz_'):
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121 return snake_to_camel( util.clip( structname, 'fz_'), initial=True)
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122 elif structname.startswith( 'pdf_'):
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123 # Retain Pdf prefix.
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124 return snake_to_camel( structname, initial=True)
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125
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126 def namespace_class( structname):
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127 '''
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128 Returns fully-qualified name of class that wraps MuPDF struct `structname`.
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129 '''
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130 return f'{namespace()}::{class_(structname)}'
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131
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132 def method( structname, fnname):
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133 '''
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134 Returns name of class method that wraps MuPDF function `fnname()`.
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135 '''
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136 return fnname
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137 if structname:
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138 structname = structname.lstrip( 'struct ')
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139 assert structname is None or structname.startswith( ('fz_', 'pdf_'))
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140 ret = util.clip( fnname, ('fz_', 'pdf_'))
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141 if ret in ('stdin', 'stdout', 'stderr'):
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142 jlib.log( 'appending underscore to {ret=}')
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143 ret += '_'
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144 return ret