Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/jinja2/parser.py @ 3:758bc20232e8 draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
"planemo upload commit 2a0fe2cc28b09e101d37293e53e82f61762262ec"
author shellac
date Thu, 14 May 2020 16:20:52 -0400
parents 26e78fe6e8c4
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0
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1 # -*- coding: utf-8 -*-
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2 """Parse tokens from the lexer into nodes for the compiler."""
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3 from . import nodes
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4 from ._compat import imap
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5 from .exceptions import TemplateAssertionError
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6 from .exceptions import TemplateSyntaxError
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7 from .lexer import describe_token
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8 from .lexer import describe_token_expr
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9
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10 _statement_keywords = frozenset(
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11 [
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12 "for",
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13 "if",
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14 "block",
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15 "extends",
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16 "print",
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17 "macro",
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18 "include",
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19 "from",
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20 "import",
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21 "set",
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22 "with",
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23 "autoescape",
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24 ]
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25 )
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26 _compare_operators = frozenset(["eq", "ne", "lt", "lteq", "gt", "gteq"])
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27
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28 _math_nodes = {
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29 "add": nodes.Add,
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30 "sub": nodes.Sub,
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31 "mul": nodes.Mul,
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32 "div": nodes.Div,
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33 "floordiv": nodes.FloorDiv,
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34 "mod": nodes.Mod,
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35 }
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36
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37
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38 class Parser(object):
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39 """This is the central parsing class Jinja uses. It's passed to
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40 extensions and can be used to parse expressions or statements.
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41 """
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42
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43 def __init__(self, environment, source, name=None, filename=None, state=None):
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44 self.environment = environment
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45 self.stream = environment._tokenize(source, name, filename, state)
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46 self.name = name
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47 self.filename = filename
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48 self.closed = False
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49 self.extensions = {}
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50 for extension in environment.iter_extensions():
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51 for tag in extension.tags:
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52 self.extensions[tag] = extension.parse
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53 self._last_identifier = 0
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54 self._tag_stack = []
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55 self._end_token_stack = []
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56
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57 def fail(self, msg, lineno=None, exc=TemplateSyntaxError):
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58 """Convenience method that raises `exc` with the message, passed
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59 line number or last line number as well as the current name and
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60 filename.
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61 """
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62 if lineno is None:
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63 lineno = self.stream.current.lineno
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64 raise exc(msg, lineno, self.name, self.filename)
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65
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66 def _fail_ut_eof(self, name, end_token_stack, lineno):
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67 expected = []
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68 for exprs in end_token_stack:
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69 expected.extend(imap(describe_token_expr, exprs))
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70 if end_token_stack:
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71 currently_looking = " or ".join(
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72 "'%s'" % describe_token_expr(expr) for expr in end_token_stack[-1]
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73 )
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74 else:
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75 currently_looking = None
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76
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77 if name is None:
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78 message = ["Unexpected end of template."]
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79 else:
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80 message = ["Encountered unknown tag '%s'." % name]
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81
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82 if currently_looking:
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83 if name is not None and name in expected:
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84 message.append(
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85 "You probably made a nesting mistake. Jinja "
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86 "is expecting this tag, but currently looking "
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87 "for %s." % currently_looking
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88 )
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89 else:
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90 message.append(
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91 "Jinja was looking for the following tags: "
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92 "%s." % currently_looking
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93 )
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94
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95 if self._tag_stack:
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96 message.append(
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97 "The innermost block that needs to be "
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98 "closed is '%s'." % self._tag_stack[-1]
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99 )
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100
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101 self.fail(" ".join(message), lineno)
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102
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103 def fail_unknown_tag(self, name, lineno=None):
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104 """Called if the parser encounters an unknown tag. Tries to fail
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105 with a human readable error message that could help to identify
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106 the problem.
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107 """
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108 return self._fail_ut_eof(name, self._end_token_stack, lineno)
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109
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110 def fail_eof(self, end_tokens=None, lineno=None):
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111 """Like fail_unknown_tag but for end of template situations."""
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112 stack = list(self._end_token_stack)
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113 if end_tokens is not None:
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114 stack.append(end_tokens)
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115 return self._fail_ut_eof(None, stack, lineno)
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116
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117 def is_tuple_end(self, extra_end_rules=None):
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118 """Are we at the end of a tuple?"""
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119 if self.stream.current.type in ("variable_end", "block_end", "rparen"):
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120 return True
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121 elif extra_end_rules is not None:
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122 return self.stream.current.test_any(extra_end_rules)
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123 return False
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124
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125 def free_identifier(self, lineno=None):
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126 """Return a new free identifier as :class:`~jinja2.nodes.InternalName`."""
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127 self._last_identifier += 1
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128 rv = object.__new__(nodes.InternalName)
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129 nodes.Node.__init__(rv, "fi%d" % self._last_identifier, lineno=lineno)
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130 return rv
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131
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132 def parse_statement(self):
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133 """Parse a single statement."""
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134 token = self.stream.current
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135 if token.type != "name":
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136 self.fail("tag name expected", token.lineno)
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137 self._tag_stack.append(token.value)
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138 pop_tag = True
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139 try:
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140 if token.value in _statement_keywords:
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141 return getattr(self, "parse_" + self.stream.current.value)()
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142 if token.value == "call":
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143 return self.parse_call_block()
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144 if token.value == "filter":
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145 return self.parse_filter_block()
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146 ext = self.extensions.get(token.value)
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147 if ext is not None:
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148 return ext(self)
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149
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150 # did not work out, remove the token we pushed by accident
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151 # from the stack so that the unknown tag fail function can
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152 # produce a proper error message.
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153 self._tag_stack.pop()
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154 pop_tag = False
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155 self.fail_unknown_tag(token.value, token.lineno)
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156 finally:
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157 if pop_tag:
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158 self._tag_stack.pop()
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159
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160 def parse_statements(self, end_tokens, drop_needle=False):
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161 """Parse multiple statements into a list until one of the end tokens
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162 is reached. This is used to parse the body of statements as it also
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163 parses template data if appropriate. The parser checks first if the
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164 current token is a colon and skips it if there is one. Then it checks
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165 for the block end and parses until if one of the `end_tokens` is
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166 reached. Per default the active token in the stream at the end of
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167 the call is the matched end token. If this is not wanted `drop_needle`
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168 can be set to `True` and the end token is removed.
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169 """
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170 # the first token may be a colon for python compatibility
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171 self.stream.skip_if("colon")
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172
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173 # in the future it would be possible to add whole code sections
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174 # by adding some sort of end of statement token and parsing those here.
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175 self.stream.expect("block_end")
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176 result = self.subparse(end_tokens)
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177
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178 # we reached the end of the template too early, the subparser
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179 # does not check for this, so we do that now
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180 if self.stream.current.type == "eof":
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181 self.fail_eof(end_tokens)
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182
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183 if drop_needle:
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184 next(self.stream)
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185 return result
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186
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187 def parse_set(self):
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188 """Parse an assign statement."""
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189 lineno = next(self.stream).lineno
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190 target = self.parse_assign_target(with_namespace=True)
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191 if self.stream.skip_if("assign"):
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192 expr = self.parse_tuple()
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193 return nodes.Assign(target, expr, lineno=lineno)
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194 filter_node = self.parse_filter(None)
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195 body = self.parse_statements(("name:endset",), drop_needle=True)
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196 return nodes.AssignBlock(target, filter_node, body, lineno=lineno)
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197
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198 def parse_for(self):
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199 """Parse a for loop."""
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200 lineno = self.stream.expect("name:for").lineno
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201 target = self.parse_assign_target(extra_end_rules=("name:in",))
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202 self.stream.expect("name:in")
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203 iter = self.parse_tuple(
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204 with_condexpr=False, extra_end_rules=("name:recursive",)
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205 )
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206 test = None
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207 if self.stream.skip_if("name:if"):
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208 test = self.parse_expression()
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209 recursive = self.stream.skip_if("name:recursive")
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210 body = self.parse_statements(("name:endfor", "name:else"))
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211 if next(self.stream).value == "endfor":
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212 else_ = []
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213 else:
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214 else_ = self.parse_statements(("name:endfor",), drop_needle=True)
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215 return nodes.For(target, iter, body, else_, test, recursive, lineno=lineno)
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216
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217 def parse_if(self):
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218 """Parse an if construct."""
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219 node = result = nodes.If(lineno=self.stream.expect("name:if").lineno)
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220 while 1:
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221 node.test = self.parse_tuple(with_condexpr=False)
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222 node.body = self.parse_statements(("name:elif", "name:else", "name:endif"))
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223 node.elif_ = []
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224 node.else_ = []
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225 token = next(self.stream)
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226 if token.test("name:elif"):
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227 node = nodes.If(lineno=self.stream.current.lineno)
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228 result.elif_.append(node)
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229 continue
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230 elif token.test("name:else"):
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231 result.else_ = self.parse_statements(("name:endif",), drop_needle=True)
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232 break
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233 return result
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234
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235 def parse_with(self):
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236 node = nodes.With(lineno=next(self.stream).lineno)
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237 targets = []
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238 values = []
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239 while self.stream.current.type != "block_end":
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240 if targets:
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241 self.stream.expect("comma")
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242 target = self.parse_assign_target()
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243 target.set_ctx("param")
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244 targets.append(target)
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245 self.stream.expect("assign")
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246 values.append(self.parse_expression())
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247 node.targets = targets
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248 node.values = values
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249 node.body = self.parse_statements(("name:endwith",), drop_needle=True)
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250 return node
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251
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252 def parse_autoescape(self):
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253 node = nodes.ScopedEvalContextModifier(lineno=next(self.stream).lineno)
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254 node.options = [nodes.Keyword("autoescape", self.parse_expression())]
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255 node.body = self.parse_statements(("name:endautoescape",), drop_needle=True)
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256 return nodes.Scope([node])
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257
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258 def parse_block(self):
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259 node = nodes.Block(lineno=next(self.stream).lineno)
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260 node.name = self.stream.expect("name").value
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261 node.scoped = self.stream.skip_if("name:scoped")
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262
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263 # common problem people encounter when switching from django
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parents:
diff changeset
264 # to jinja. we do not support hyphens in block names, so let's
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parents:
diff changeset
265 # raise a nicer error message in that case.
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diff changeset
266 if self.stream.current.type == "sub":
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267 self.fail(
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268 "Block names in Jinja have to be valid Python "
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269 "identifiers and may not contain hyphens, use an "
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270 "underscore instead."
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271 )
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272
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273 node.body = self.parse_statements(("name:endblock",), drop_needle=True)
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274 self.stream.skip_if("name:" + node.name)
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275 return node
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276
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277 def parse_extends(self):
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278 node = nodes.Extends(lineno=next(self.stream).lineno)
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279 node.template = self.parse_expression()
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280 return node
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281
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282 def parse_import_context(self, node, default):
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283 if self.stream.current.test_any(
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284 "name:with", "name:without"
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285 ) and self.stream.look().test("name:context"):
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286 node.with_context = next(self.stream).value == "with"
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parents:
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287 self.stream.skip()
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288 else:
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289 node.with_context = default
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290 return node
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291
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292 def parse_include(self):
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293 node = nodes.Include(lineno=next(self.stream).lineno)
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294 node.template = self.parse_expression()
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295 if self.stream.current.test("name:ignore") and self.stream.look().test(
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296 "name:missing"
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297 ):
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298 node.ignore_missing = True
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299 self.stream.skip(2)
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300 else:
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301 node.ignore_missing = False
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302 return self.parse_import_context(node, True)
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303
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304 def parse_import(self):
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305 node = nodes.Import(lineno=next(self.stream).lineno)
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306 node.template = self.parse_expression()
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307 self.stream.expect("name:as")
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308 node.target = self.parse_assign_target(name_only=True).name
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309 return self.parse_import_context(node, False)
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310
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311 def parse_from(self):
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312 node = nodes.FromImport(lineno=next(self.stream).lineno)
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313 node.template = self.parse_expression()
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314 self.stream.expect("name:import")
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parents:
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315 node.names = []
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316
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317 def parse_context():
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diff changeset
318 if self.stream.current.value in (
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parents:
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319 "with",
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320 "without",
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321 ) and self.stream.look().test("name:context"):
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322 node.with_context = next(self.stream).value == "with"
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parents:
diff changeset
323 self.stream.skip()
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parents:
diff changeset
324 return True
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parents:
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325 return False
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parents:
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326
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parents:
diff changeset
327 while 1:
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parents:
diff changeset
328 if node.names:
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parents:
diff changeset
329 self.stream.expect("comma")
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parents:
diff changeset
330 if self.stream.current.type == "name":
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parents:
diff changeset
331 if parse_context():
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parents:
diff changeset
332 break
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parents:
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333 target = self.parse_assign_target(name_only=True)
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parents:
diff changeset
334 if target.name.startswith("_"):
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parents:
diff changeset
335 self.fail(
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diff changeset
336 "names starting with an underline can not be imported",
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parents:
diff changeset
337 target.lineno,
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parents:
diff changeset
338 exc=TemplateAssertionError,
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parents:
diff changeset
339 )
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parents:
diff changeset
340 if self.stream.skip_if("name:as"):
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parents:
diff changeset
341 alias = self.parse_assign_target(name_only=True)
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parents:
diff changeset
342 node.names.append((target.name, alias.name))
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parents:
diff changeset
343 else:
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diff changeset
344 node.names.append(target.name)
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parents:
diff changeset
345 if parse_context() or self.stream.current.type != "comma":
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parents:
diff changeset
346 break
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parents:
diff changeset
347 else:
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parents:
diff changeset
348 self.stream.expect("name")
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parents:
diff changeset
349 if not hasattr(node, "with_context"):
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parents:
diff changeset
350 node.with_context = False
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parents:
diff changeset
351 return node
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352
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parents:
diff changeset
353 def parse_signature(self, node):
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parents:
diff changeset
354 node.args = args = []
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parents:
diff changeset
355 node.defaults = defaults = []
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parents:
diff changeset
356 self.stream.expect("lparen")
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parents:
diff changeset
357 while self.stream.current.type != "rparen":
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parents:
diff changeset
358 if args:
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parents:
diff changeset
359 self.stream.expect("comma")
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parents:
diff changeset
360 arg = self.parse_assign_target(name_only=True)
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parents:
diff changeset
361 arg.set_ctx("param")
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parents:
diff changeset
362 if self.stream.skip_if("assign"):
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parents:
diff changeset
363 defaults.append(self.parse_expression())
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parents:
diff changeset
364 elif defaults:
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diff changeset
365 self.fail("non-default argument follows default argument")
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parents:
diff changeset
366 args.append(arg)
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parents:
diff changeset
367 self.stream.expect("rparen")
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parents:
diff changeset
368
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parents:
diff changeset
369 def parse_call_block(self):
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parents:
diff changeset
370 node = nodes.CallBlock(lineno=next(self.stream).lineno)
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parents:
diff changeset
371 if self.stream.current.type == "lparen":
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parents:
diff changeset
372 self.parse_signature(node)
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parents:
diff changeset
373 else:
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parents:
diff changeset
374 node.args = []
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parents:
diff changeset
375 node.defaults = []
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parents:
diff changeset
376
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parents:
diff changeset
377 node.call = self.parse_expression()
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parents:
diff changeset
378 if not isinstance(node.call, nodes.Call):
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parents:
diff changeset
379 self.fail("expected call", node.lineno)
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parents:
diff changeset
380 node.body = self.parse_statements(("name:endcall",), drop_needle=True)
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parents:
diff changeset
381 return node
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parents:
diff changeset
382
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parents:
diff changeset
383 def parse_filter_block(self):
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parents:
diff changeset
384 node = nodes.FilterBlock(lineno=next(self.stream).lineno)
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parents:
diff changeset
385 node.filter = self.parse_filter(None, start_inline=True)
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parents:
diff changeset
386 node.body = self.parse_statements(("name:endfilter",), drop_needle=True)
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parents:
diff changeset
387 return node
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parents:
diff changeset
388
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parents:
diff changeset
389 def parse_macro(self):
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parents:
diff changeset
390 node = nodes.Macro(lineno=next(self.stream).lineno)
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parents:
diff changeset
391 node.name = self.parse_assign_target(name_only=True).name
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parents:
diff changeset
392 self.parse_signature(node)
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parents:
diff changeset
393 node.body = self.parse_statements(("name:endmacro",), drop_needle=True)
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parents:
diff changeset
394 return node
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parents:
diff changeset
395
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parents:
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396 def parse_print(self):
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parents:
diff changeset
397 node = nodes.Output(lineno=next(self.stream).lineno)
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parents:
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398 node.nodes = []
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parents:
diff changeset
399 while self.stream.current.type != "block_end":
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parents:
diff changeset
400 if node.nodes:
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parents:
diff changeset
401 self.stream.expect("comma")
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parents:
diff changeset
402 node.nodes.append(self.parse_expression())
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parents:
diff changeset
403 return node
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parents:
diff changeset
404
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parents:
diff changeset
405 def parse_assign_target(
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parents:
diff changeset
406 self,
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parents:
diff changeset
407 with_tuple=True,
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parents:
diff changeset
408 name_only=False,
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parents:
diff changeset
409 extra_end_rules=None,
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parents:
diff changeset
410 with_namespace=False,
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parents:
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411 ):
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parents:
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412 """Parse an assignment target. As Jinja allows assignments to
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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413 tuples, this function can parse all allowed assignment targets. Per
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
414 default assignments to tuples are parsed, that can be disable however
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parents:
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415 by setting `with_tuple` to `False`. If only assignments to names are
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
416 wanted `name_only` can be set to `True`. The `extra_end_rules`
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
417 parameter is forwarded to the tuple parsing function. If
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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418 `with_namespace` is enabled, a namespace assignment may be parsed.
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parents:
diff changeset
419 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
420 if with_namespace and self.stream.look().type == "dot":
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parents:
diff changeset
421 token = self.stream.expect("name")
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parents:
diff changeset
422 next(self.stream) # dot
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parents:
diff changeset
423 attr = self.stream.expect("name")
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parents:
diff changeset
424 target = nodes.NSRef(token.value, attr.value, lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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425 elif name_only:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
426 token = self.stream.expect("name")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
427 target = nodes.Name(token.value, "store", lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
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428 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
429 if with_tuple:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
430 target = self.parse_tuple(
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parents:
diff changeset
431 simplified=True, extra_end_rules=extra_end_rules
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parents:
diff changeset
432 )
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parents:
diff changeset
433 else:
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parents:
diff changeset
434 target = self.parse_primary()
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parents:
diff changeset
435 target.set_ctx("store")
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parents:
diff changeset
436 if not target.can_assign():
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parents:
diff changeset
437 self.fail(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
438 "can't assign to %r" % target.__class__.__name__.lower(), target.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
439 )
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parents:
diff changeset
440 return target
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parents:
diff changeset
441
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parents:
diff changeset
442 def parse_expression(self, with_condexpr=True):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
443 """Parse an expression. Per default all expressions are parsed, if
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
444 the optional `with_condexpr` parameter is set to `False` conditional
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
445 expressions are not parsed.
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parents:
diff changeset
446 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
447 if with_condexpr:
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parents:
diff changeset
448 return self.parse_condexpr()
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parents:
diff changeset
449 return self.parse_or()
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parents:
diff changeset
450
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parents:
diff changeset
451 def parse_condexpr(self):
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parents:
diff changeset
452 lineno = self.stream.current.lineno
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parents:
diff changeset
453 expr1 = self.parse_or()
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parents:
diff changeset
454 while self.stream.skip_if("name:if"):
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parents:
diff changeset
455 expr2 = self.parse_or()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
456 if self.stream.skip_if("name:else"):
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parents:
diff changeset
457 expr3 = self.parse_condexpr()
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parents:
diff changeset
458 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
459 expr3 = None
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
460 expr1 = nodes.CondExpr(expr2, expr1, expr3, lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
461 lineno = self.stream.current.lineno
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parents:
diff changeset
462 return expr1
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parents:
diff changeset
463
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parents:
diff changeset
464 def parse_or(self):
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parents:
diff changeset
465 lineno = self.stream.current.lineno
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parents:
diff changeset
466 left = self.parse_and()
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parents:
diff changeset
467 while self.stream.skip_if("name:or"):
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parents:
diff changeset
468 right = self.parse_and()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
469 left = nodes.Or(left, right, lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
470 lineno = self.stream.current.lineno
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shellac
parents:
diff changeset
471 return left
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
472
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
473 def parse_and(self):
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parents:
diff changeset
474 lineno = self.stream.current.lineno
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shellac
parents:
diff changeset
475 left = self.parse_not()
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parents:
diff changeset
476 while self.stream.skip_if("name:and"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
477 right = self.parse_not()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
478 left = nodes.And(left, right, lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
479 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
480 return left
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
481
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
482 def parse_not(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
483 if self.stream.current.test("name:not"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
484 lineno = next(self.stream).lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
485 return nodes.Not(self.parse_not(), lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
486 return self.parse_compare()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
487
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
488 def parse_compare(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
489 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
490 expr = self.parse_math1()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
491 ops = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
492 while 1:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
493 token_type = self.stream.current.type
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
494 if token_type in _compare_operators:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
495 next(self.stream)
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parents:
diff changeset
496 ops.append(nodes.Operand(token_type, self.parse_math1()))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
497 elif self.stream.skip_if("name:in"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
498 ops.append(nodes.Operand("in", self.parse_math1()))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
499 elif self.stream.current.test("name:not") and self.stream.look().test(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
500 "name:in"
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
501 ):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
502 self.stream.skip(2)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
503 ops.append(nodes.Operand("notin", self.parse_math1()))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
504 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
505 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
506 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
507 if not ops:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
508 return expr
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
509 return nodes.Compare(expr, ops, lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
510
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
511 def parse_math1(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
512 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
513 left = self.parse_concat()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
514 while self.stream.current.type in ("add", "sub"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
515 cls = _math_nodes[self.stream.current.type]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
516 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
517 right = self.parse_concat()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
518 left = cls(left, right, lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
519 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
520 return left
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
521
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
522 def parse_concat(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
523 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
524 args = [self.parse_math2()]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
525 while self.stream.current.type == "tilde":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
526 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
527 args.append(self.parse_math2())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
528 if len(args) == 1:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
529 return args[0]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
530 return nodes.Concat(args, lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
531
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
532 def parse_math2(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
533 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
534 left = self.parse_pow()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
535 while self.stream.current.type in ("mul", "div", "floordiv", "mod"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
536 cls = _math_nodes[self.stream.current.type]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
537 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
538 right = self.parse_pow()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
539 left = cls(left, right, lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
540 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
541 return left
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
542
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
543 def parse_pow(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
544 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
545 left = self.parse_unary()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
546 while self.stream.current.type == "pow":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
547 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
548 right = self.parse_unary()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
549 left = nodes.Pow(left, right, lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
550 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
551 return left
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
552
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
553 def parse_unary(self, with_filter=True):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
554 token_type = self.stream.current.type
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
555 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
556 if token_type == "sub":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
557 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
558 node = nodes.Neg(self.parse_unary(False), lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
559 elif token_type == "add":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
560 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
561 node = nodes.Pos(self.parse_unary(False), lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
562 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
563 node = self.parse_primary()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
564 node = self.parse_postfix(node)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
565 if with_filter:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
566 node = self.parse_filter_expr(node)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
567 return node
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
568
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
569 def parse_primary(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
570 token = self.stream.current
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
571 if token.type == "name":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
572 if token.value in ("true", "false", "True", "False"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
573 node = nodes.Const(token.value in ("true", "True"), lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
574 elif token.value in ("none", "None"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
575 node = nodes.Const(None, lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
576 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
577 node = nodes.Name(token.value, "load", lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
578 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
579 elif token.type == "string":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
580 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
581 buf = [token.value]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
582 lineno = token.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
583 while self.stream.current.type == "string":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
584 buf.append(self.stream.current.value)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
585 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
586 node = nodes.Const("".join(buf), lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
587 elif token.type in ("integer", "float"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
588 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
589 node = nodes.Const(token.value, lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
590 elif token.type == "lparen":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
591 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
592 node = self.parse_tuple(explicit_parentheses=True)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
593 self.stream.expect("rparen")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
594 elif token.type == "lbracket":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
595 node = self.parse_list()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
596 elif token.type == "lbrace":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
597 node = self.parse_dict()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
598 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
599 self.fail("unexpected '%s'" % describe_token(token), token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
600 return node
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
601
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
602 def parse_tuple(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
603 self,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
604 simplified=False,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
605 with_condexpr=True,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
606 extra_end_rules=None,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
607 explicit_parentheses=False,
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
608 ):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
609 """Works like `parse_expression` but if multiple expressions are
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
610 delimited by a comma a :class:`~jinja2.nodes.Tuple` node is created.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
611 This method could also return a regular expression instead of a tuple
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
612 if no commas where found.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
613
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
614 The default parsing mode is a full tuple. If `simplified` is `True`
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
615 only names and literals are parsed. The `no_condexpr` parameter is
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
616 forwarded to :meth:`parse_expression`.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
617
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
618 Because tuples do not require delimiters and may end in a bogus comma
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
619 an extra hint is needed that marks the end of a tuple. For example
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
620 for loops support tuples between `for` and `in`. In that case the
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
621 `extra_end_rules` is set to ``['name:in']``.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
622
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
623 `explicit_parentheses` is true if the parsing was triggered by an
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
624 expression in parentheses. This is used to figure out if an empty
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
625 tuple is a valid expression or not.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
626 """
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
627 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
628 if simplified:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
629 parse = self.parse_primary
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
630 elif with_condexpr:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
631 parse = self.parse_expression
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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parents:
diff changeset
632 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
633
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
634 def parse():
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
635 return self.parse_expression(with_condexpr=False)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
636
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
637 args = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
638 is_tuple = False
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
639 while 1:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
640 if args:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
641 self.stream.expect("comma")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
642 if self.is_tuple_end(extra_end_rules):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
643 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
644 args.append(parse())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
645 if self.stream.current.type == "comma":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
646 is_tuple = True
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
647 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
648 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
649 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
650
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
651 if not is_tuple:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
652 if args:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
653 return args[0]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
654
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
655 # if we don't have explicit parentheses, an empty tuple is
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
656 # not a valid expression. This would mean nothing (literally
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
657 # nothing) in the spot of an expression would be an empty
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
658 # tuple.
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
659 if not explicit_parentheses:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
660 self.fail(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
661 "Expected an expression, got '%s'"
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
662 % describe_token(self.stream.current)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
663 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
664
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
665 return nodes.Tuple(args, "load", lineno=lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
666
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
667 def parse_list(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
668 token = self.stream.expect("lbracket")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
669 items = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
670 while self.stream.current.type != "rbracket":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
671 if items:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
672 self.stream.expect("comma")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
673 if self.stream.current.type == "rbracket":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
674 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
675 items.append(self.parse_expression())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
676 self.stream.expect("rbracket")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
677 return nodes.List(items, lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
678
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
679 def parse_dict(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
680 token = self.stream.expect("lbrace")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
681 items = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
682 while self.stream.current.type != "rbrace":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
683 if items:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
684 self.stream.expect("comma")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
685 if self.stream.current.type == "rbrace":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
686 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
687 key = self.parse_expression()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
688 self.stream.expect("colon")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
689 value = self.parse_expression()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
690 items.append(nodes.Pair(key, value, lineno=key.lineno))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
691 self.stream.expect("rbrace")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
692 return nodes.Dict(items, lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
693
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
694 def parse_postfix(self, node):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
695 while 1:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
696 token_type = self.stream.current.type
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
697 if token_type == "dot" or token_type == "lbracket":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
698 node = self.parse_subscript(node)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
699 # calls are valid both after postfix expressions (getattr
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
700 # and getitem) as well as filters and tests
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
701 elif token_type == "lparen":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
702 node = self.parse_call(node)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
703 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
704 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
705 return node
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
706
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
707 def parse_filter_expr(self, node):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
708 while 1:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
709 token_type = self.stream.current.type
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
710 if token_type == "pipe":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
711 node = self.parse_filter(node)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
712 elif token_type == "name" and self.stream.current.value == "is":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
713 node = self.parse_test(node)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
714 # calls are valid both after postfix expressions (getattr
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
715 # and getitem) as well as filters and tests
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
716 elif token_type == "lparen":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
717 node = self.parse_call(node)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
718 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
719 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
720 return node
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
721
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
722 def parse_subscript(self, node):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
723 token = next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
724 if token.type == "dot":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
725 attr_token = self.stream.current
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
726 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
727 if attr_token.type == "name":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
728 return nodes.Getattr(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
729 node, attr_token.value, "load", lineno=token.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
730 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
731 elif attr_token.type != "integer":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
732 self.fail("expected name or number", attr_token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
733 arg = nodes.Const(attr_token.value, lineno=attr_token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
734 return nodes.Getitem(node, arg, "load", lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
735 if token.type == "lbracket":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
736 args = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
737 while self.stream.current.type != "rbracket":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
738 if args:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
739 self.stream.expect("comma")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
740 args.append(self.parse_subscribed())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
741 self.stream.expect("rbracket")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
742 if len(args) == 1:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
743 arg = args[0]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
744 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
745 arg = nodes.Tuple(args, "load", lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
746 return nodes.Getitem(node, arg, "load", lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
747 self.fail("expected subscript expression", token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
748
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
749 def parse_subscribed(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
750 lineno = self.stream.current.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
751
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
752 if self.stream.current.type == "colon":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
753 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
754 args = [None]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
755 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
756 node = self.parse_expression()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
757 if self.stream.current.type != "colon":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
758 return node
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
759 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
760 args = [node]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
761
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
762 if self.stream.current.type == "colon":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
763 args.append(None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
764 elif self.stream.current.type not in ("rbracket", "comma"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
765 args.append(self.parse_expression())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
766 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
767 args.append(None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
768
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
769 if self.stream.current.type == "colon":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
770 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
771 if self.stream.current.type not in ("rbracket", "comma"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
772 args.append(self.parse_expression())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
773 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
774 args.append(None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
775 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
776 args.append(None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
777
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
778 return nodes.Slice(lineno=lineno, *args)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
779
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
780 def parse_call(self, node):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
781 token = self.stream.expect("lparen")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
782 args = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
783 kwargs = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
784 dyn_args = dyn_kwargs = None
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
785 require_comma = False
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
786
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
787 def ensure(expr):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
788 if not expr:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
789 self.fail("invalid syntax for function call expression", token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
790
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
791 while self.stream.current.type != "rparen":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
792 if require_comma:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
793 self.stream.expect("comma")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
794 # support for trailing comma
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
795 if self.stream.current.type == "rparen":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
796 break
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
797 if self.stream.current.type == "mul":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
798 ensure(dyn_args is None and dyn_kwargs is None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
799 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
800 dyn_args = self.parse_expression()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
801 elif self.stream.current.type == "pow":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
802 ensure(dyn_kwargs is None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
803 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
804 dyn_kwargs = self.parse_expression()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
805 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
806 if (
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
807 self.stream.current.type == "name"
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
808 and self.stream.look().type == "assign"
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
809 ):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
810 # Parsing a kwarg
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
811 ensure(dyn_kwargs is None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
812 key = self.stream.current.value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
813 self.stream.skip(2)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
814 value = self.parse_expression()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
815 kwargs.append(nodes.Keyword(key, value, lineno=value.lineno))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
816 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
817 # Parsing an arg
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
818 ensure(dyn_args is None and dyn_kwargs is None and not kwargs)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
819 args.append(self.parse_expression())
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
820
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
821 require_comma = True
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
822 self.stream.expect("rparen")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
823
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
824 if node is None:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
825 return args, kwargs, dyn_args, dyn_kwargs
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
826 return nodes.Call(node, args, kwargs, dyn_args, dyn_kwargs, lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
827
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
828 def parse_filter(self, node, start_inline=False):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
829 while self.stream.current.type == "pipe" or start_inline:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
830 if not start_inline:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
831 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
832 token = self.stream.expect("name")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
833 name = token.value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
834 while self.stream.current.type == "dot":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
835 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
836 name += "." + self.stream.expect("name").value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
837 if self.stream.current.type == "lparen":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
838 args, kwargs, dyn_args, dyn_kwargs = self.parse_call(None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
839 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
840 args = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
841 kwargs = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
842 dyn_args = dyn_kwargs = None
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
843 node = nodes.Filter(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
844 node, name, args, kwargs, dyn_args, dyn_kwargs, lineno=token.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
845 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
846 start_inline = False
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
847 return node
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
848
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
849 def parse_test(self, node):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
850 token = next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
851 if self.stream.current.test("name:not"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
852 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
853 negated = True
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
854 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
855 negated = False
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
856 name = self.stream.expect("name").value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
857 while self.stream.current.type == "dot":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
858 next(self.stream)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
859 name += "." + self.stream.expect("name").value
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
860 dyn_args = dyn_kwargs = None
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
861 kwargs = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
862 if self.stream.current.type == "lparen":
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
863 args, kwargs, dyn_args, dyn_kwargs = self.parse_call(None)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
864 elif self.stream.current.type in (
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
865 "name",
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
866 "string",
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
867 "integer",
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
868 "float",
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
869 "lparen",
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
870 "lbracket",
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
871 "lbrace",
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
872 ) and not self.stream.current.test_any("name:else", "name:or", "name:and"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
873 if self.stream.current.test("name:is"):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
874 self.fail("You cannot chain multiple tests with is")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
875 arg_node = self.parse_primary()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
876 arg_node = self.parse_postfix(arg_node)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
877 args = [arg_node]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
878 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
879 args = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
880 node = nodes.Test(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
881 node, name, args, kwargs, dyn_args, dyn_kwargs, lineno=token.lineno
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
882 )
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
883 if negated:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
884 node = nodes.Not(node, lineno=token.lineno)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
885 return node
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
886
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
887 def subparse(self, end_tokens=None):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
888 body = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
889 data_buffer = []
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
890 add_data = data_buffer.append
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
891
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
892 if end_tokens is not None:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
893 self._end_token_stack.append(end_tokens)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
894
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
shellac
parents:
diff changeset
895 def flush_data():
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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896 if data_buffer:
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897 lineno = data_buffer[0].lineno
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898 body.append(nodes.Output(data_buffer[:], lineno=lineno))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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899 del data_buffer[:]
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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900
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901 try:
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902 while self.stream:
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903 token = self.stream.current
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904 if token.type == "data":
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905 if token.value:
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906 add_data(nodes.TemplateData(token.value, lineno=token.lineno))
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907 next(self.stream)
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908 elif token.type == "variable_begin":
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909 next(self.stream)
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910 add_data(self.parse_tuple(with_condexpr=True))
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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911 self.stream.expect("variable_end")
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912 elif token.type == "block_begin":
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913 flush_data()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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914 next(self.stream)
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915 if end_tokens is not None and self.stream.current.test_any(
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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916 *end_tokens
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917 ):
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918 return body
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919 rv = self.parse_statement()
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920 if isinstance(rv, list):
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921 body.extend(rv)
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922 else:
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923 body.append(rv)
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924 self.stream.expect("block_end")
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925 else:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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926 raise AssertionError("internal parsing error")
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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927
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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928 flush_data()
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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929 finally:
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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930 if end_tokens is not None:
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931 self._end_token_stack.pop()
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932
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933 return body
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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934
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935 def parse(self):
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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936 """Parse the whole template into a `Template` node."""
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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937 result = nodes.Template(self.subparse(), lineno=1)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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938 result.set_environment(self.environment)
26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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939 return result