Mercurial > p > roundup > code
annotate roundup/cgi/TAL/TALInterpreter.py @ 5814:bd6d41f21a5a
More extensive EditCSV testing.
Uses test object to cover all types defined by database.
Also check for an error with a row that's too short.
CSV starts with blank line to verify that it recognises header line.
Changes password, date, int, link and other fields.
Deletes row and verified that it is retired.
Make actions.py properly handle emptying of password field.
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Fri, 14 Jun 2019 21:26:19 -0400 |
| parents | d79ba7365abb |
| children | 883c9e90b403 |
| rev | line source |
|---|---|
| 1049 | 1 ############################################################################## |
| 2 # | |
| 3 # Copyright (c) 2001, 2002 Zope Corporation and Contributors. | |
| 4 # All Rights Reserved. | |
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5 # |
| 1049 | 6 # This software is subject to the provisions of the Zope Public License, |
| 7 # Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution. | |
| 8 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED | |
| 9 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | |
| 10 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS | |
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11 # FOR A PARTICULAR PURPOSE. |
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12 # |
| 1049 | 13 ############################################################################## |
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14 # Modifications for Roundup: |
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15 # 1. implemented ustr as str |
| 1049 | 16 """ |
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17 Interpreter for a pre-compiled TAL program. |
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18 """ |
| 1049 | 19 |
| 20 import sys | |
| 21 import getopt | |
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22 import re |
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23 |
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24 try: |
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25 from html import escape |
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26 except ImportError: |
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27 from cgi import escape |
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28 |
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29 from roundup.anypy.strings import StringIO |
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30 #from DocumentTemplate.DT_Util import ustr |
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31 ustr = str |
| 1049 | 32 |
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33 from .TALDefs import TAL_VERSION, TALError, METALError, attrEscape |
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34 from .TALDefs import isCurrentVersion, getProgramVersion, getProgramMode |
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35 from .TALGenerator import TALGenerator |
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36 from .TranslationContext import TranslationContext |
| 1049 | 37 |
| 38 BOOLEAN_HTML_ATTRS = [ | |
| 39 # List of Boolean attributes in HTML that should be rendered in | |
| 40 # minimized form (e.g. <img ismap> rather than <img ismap="">) | |
| 41 # From http://www.w3.org/TR/xhtml1/#guidelines (C.10) | |
| 42 # XXX The problem with this is that this is not valid XML and | |
| 43 # can't be parsed back! | |
| 44 "compact", "nowrap", "ismap", "declare", "noshade", "checked", | |
| 45 "disabled", "readonly", "multiple", "selected", "noresize", | |
| 46 "defer" | |
| 47 ] | |
| 48 | |
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49 def normalize(text): |
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50 # Now we need to normalize the whitespace in implicit message ids and |
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51 # implicit $name substitution values by stripping leading and trailing |
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52 # whitespace, and folding all internal whitespace to a single space. |
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53 return ' '.join(text.split()) |
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54 |
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55 |
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56 NAME_RE = r"[a-zA-Z][a-zA-Z0-9_]*" |
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57 _interp_regex = re.compile(r'(?<!\$)(\$(?:%(n)s|{%(n)s}))' %({'n': NAME_RE})) |
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58 _get_var_regex = re.compile(r'%(n)s' %({'n': NAME_RE})) |
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59 |
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60 def interpolate(text, mapping): |
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61 """Interpolate ${keyword} substitutions. |
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62 |
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63 This is called when no translation is provided by the translation |
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64 service. |
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65 """ |
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66 if not mapping: |
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67 return text |
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68 # Find all the spots we want to substitute. |
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69 to_replace = _interp_regex.findall(text) |
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70 # Now substitute with the variables in mapping. |
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71 for string in to_replace: |
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72 var = _get_var_regex.findall(string)[0] |
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73 if var in mapping: |
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74 # Call ustr because we may have an integer for instance. |
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75 subst = ustr(mapping[var]) |
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76 try: |
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77 text = text.replace(string, subst) |
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78 except UnicodeError: |
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79 # subst contains high-bit chars... |
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80 # As we have no way of knowing the correct encoding, |
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81 # substitue something instead of raising an exception. |
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82 subst = repr(subst)[1:-1] |
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83 text = text.replace(string, subst) |
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84 return text |
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85 |
| 1049 | 86 |
| 87 class AltTALGenerator(TALGenerator): | |
| 88 | |
| 89 def __init__(self, repldict, expressionCompiler=None, xml=0): | |
| 90 self.repldict = repldict | |
| 91 self.enabled = 1 | |
| 92 TALGenerator.__init__(self, expressionCompiler, xml) | |
| 93 | |
| 94 def enable(self, enabled): | |
| 95 self.enabled = enabled | |
| 96 | |
| 97 def emit(self, *args): | |
| 98 if self.enabled: | |
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99 TALGenerator.emit(self, *args) |
| 1049 | 100 |
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101 def emitStartElement(self, name, attrlist, taldict, metaldict, i18ndict, |
| 1049 | 102 position=(None, None), isend=0): |
| 103 metaldict = {} | |
| 104 taldict = {} | |
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105 i18ndict = {} |
| 1049 | 106 if self.enabled and self.repldict: |
| 107 taldict["attributes"] = "x x" | |
| 108 TALGenerator.emitStartElement(self, name, attrlist, | |
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109 taldict, metaldict, i18ndict, |
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110 position, isend) |
| 1049 | 111 |
| 112 def replaceAttrs(self, attrlist, repldict): | |
| 113 if self.enabled and self.repldict: | |
| 114 repldict = self.repldict | |
| 115 self.repldict = None | |
| 116 return TALGenerator.replaceAttrs(self, attrlist, repldict) | |
| 117 | |
| 118 | |
| 119 class TALInterpreter: | |
| 120 | |
| 121 def __init__(self, program, macros, engine, stream=None, | |
| 122 debug=0, wrap=60, metal=1, tal=1, showtal=-1, | |
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123 strictinsert=1, stackLimit=100, i18nInterpolate=1): |
| 1049 | 124 self.program = program |
| 125 self.macros = macros | |
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126 self.engine = engine # Execution engine (aka context) |
| 1049 | 127 self.Default = engine.getDefault() |
| 128 self.stream = stream or sys.stdout | |
| 129 self._stream_write = self.stream.write | |
| 130 self.debug = debug | |
| 131 self.wrap = wrap | |
| 132 self.metal = metal | |
| 133 self.tal = tal | |
| 134 if tal: | |
| 135 self.dispatch = self.bytecode_handlers_tal | |
| 136 else: | |
| 137 self.dispatch = self.bytecode_handlers | |
| 138 assert showtal in (-1, 0, 1) | |
| 139 if showtal == -1: | |
| 140 showtal = (not tal) | |
| 141 self.showtal = showtal | |
| 142 self.strictinsert = strictinsert | |
| 143 self.stackLimit = stackLimit | |
| 144 self.html = 0 | |
| 145 self.endsep = "/>" | |
| 146 self.endlen = len(self.endsep) | |
| 147 self.macroStack = [] | |
| 148 self.position = None, None # (lineno, offset) | |
| 149 self.col = 0 | |
| 150 self.level = 0 | |
| 151 self.scopeLevel = 0 | |
| 152 self.sourceFile = None | |
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153 self.i18nStack = [] |
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154 self.i18nInterpolate = i18nInterpolate |
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155 self.i18nContext = TranslationContext() |
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156 |
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157 def StringIO(self): |
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158 # Third-party products wishing to provide a full Unicode-aware |
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159 # StringIO can do so by monkey-patching this method. |
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160 return StringIO() |
| 1049 | 161 |
| 162 def saveState(self): | |
| 163 return (self.position, self.col, self.stream, | |
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164 self.scopeLevel, self.level, self.i18nContext) |
| 1049 | 165 |
| 166 def restoreState(self, state): | |
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167 (self.position, self.col, self.stream, scopeLevel, level, i18n) = state |
| 1049 | 168 self._stream_write = self.stream.write |
| 169 assert self.level == level | |
| 170 while self.scopeLevel > scopeLevel: | |
| 171 self.engine.endScope() | |
| 172 self.scopeLevel = self.scopeLevel - 1 | |
| 173 self.engine.setPosition(self.position) | |
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174 self.i18nContext = i18n |
| 1049 | 175 |
| 176 def restoreOutputState(self, state): | |
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177 (dummy, self.col, self.stream, scopeLevel, level, i18n) = state |
| 1049 | 178 self._stream_write = self.stream.write |
| 179 assert self.level == level | |
| 180 assert self.scopeLevel == scopeLevel | |
| 181 | |
| 182 def pushMacro(self, macroName, slots, entering=1): | |
| 183 if len(self.macroStack) >= self.stackLimit: | |
| 184 raise METALError("macro nesting limit (%d) exceeded " | |
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185 "by %s" % (self.stackLimit, repr(macroName))) |
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186 self.macroStack.append([macroName, slots, entering, self.i18nContext]) |
| 1049 | 187 |
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188 def popMacro(self): |
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189 return self.macroStack.pop() |
| 1049 | 190 |
| 191 def __call__(self): | |
| 192 assert self.level == 0 | |
| 193 assert self.scopeLevel == 0 | |
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194 assert self.i18nContext.parent is None |
| 1049 | 195 self.interpret(self.program) |
| 196 assert self.level == 0 | |
| 197 assert self.scopeLevel == 0 | |
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198 assert self.i18nContext.parent is None |
| 1049 | 199 if self.col > 0: |
| 200 self._stream_write("\n") | |
| 201 self.col = 0 | |
| 202 | |
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203 def stream_write(self, s, |
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204 len=len): |
| 1049 | 205 self._stream_write(s) |
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206 i = s.rfind('\n') |
| 1049 | 207 if i < 0: |
| 208 self.col = self.col + len(s) | |
| 209 else: | |
| 210 self.col = len(s) - (i + 1) | |
| 211 | |
| 212 bytecode_handlers = {} | |
| 213 | |
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214 def interpretWithStream(self, program, stream): |
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215 oldstream = self.stream |
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216 self.stream = stream |
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217 self._stream_write = stream.write |
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218 try: |
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219 self.interpret(program) |
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220 finally: |
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221 self.stream = oldstream |
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222 self._stream_write = oldstream.write |
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223 |
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224 def interpret(self, program): |
| 1049 | 225 oldlevel = self.level |
| 226 self.level = oldlevel + 1 | |
| 227 handlers = self.dispatch | |
| 228 try: | |
| 229 if self.debug: | |
| 230 for (opcode, args) in program: | |
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231 s = "%sdo_%s(%s)\n" % (" "*self.level, opcode, |
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232 repr(args)) |
| 1049 | 233 if len(s) > 80: |
| 234 s = s[:76] + "...\n" | |
| 235 sys.stderr.write(s) | |
| 236 handlers[opcode](self, args) | |
| 237 else: | |
| 238 for (opcode, args) in program: | |
| 239 handlers[opcode](self, args) | |
| 240 finally: | |
| 241 self.level = oldlevel | |
| 242 | |
| 243 def do_version(self, version): | |
| 244 assert version == TAL_VERSION | |
| 245 bytecode_handlers["version"] = do_version | |
| 246 | |
| 247 def do_mode(self, mode): | |
| 248 assert mode in ("html", "xml") | |
| 249 self.html = (mode == "html") | |
| 250 if self.html: | |
| 251 self.endsep = " />" | |
| 252 else: | |
| 253 self.endsep = "/>" | |
| 254 self.endlen = len(self.endsep) | |
| 255 bytecode_handlers["mode"] = do_mode | |
| 256 | |
| 257 def do_setSourceFile(self, source_file): | |
| 258 self.sourceFile = source_file | |
| 259 self.engine.setSourceFile(source_file) | |
| 260 bytecode_handlers["setSourceFile"] = do_setSourceFile | |
| 261 | |
| 262 def do_setPosition(self, position): | |
| 263 self.position = position | |
| 264 self.engine.setPosition(position) | |
| 265 bytecode_handlers["setPosition"] = do_setPosition | |
| 266 | |
| 267 def do_startEndTag(self, stuff): | |
| 268 self.do_startTag(stuff, self.endsep, self.endlen) | |
| 269 bytecode_handlers["startEndTag"] = do_startEndTag | |
| 270 | |
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271 def do_startTag(self, name_attrList, |
| 1049 | 272 end=">", endlen=1, _len=len): |
| 273 # The bytecode generator does not cause calls to this method | |
| 274 # for start tags with no attributes; those are optimized down | |
| 275 # to rawtext events. Hence, there is no special "fast path" | |
| 276 # for that case. | |
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277 (name, attrList) = name_attrList |
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278 L = ["<", name] |
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279 append = L.append |
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280 col = self.col + _len(name) + 1 |
| 1049 | 281 wrap = self.wrap |
| 282 align = col + 1 | |
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283 if align >= wrap//2: |
| 1049 | 284 align = 4 # Avoid a narrow column far to the right |
| 285 attrAction = self.dispatch["<attrAction>"] | |
| 286 try: | |
| 287 for item in attrList: | |
| 288 if _len(item) == 2: | |
| 289 name, s = item | |
| 290 else: | |
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291 # item[2] is the 'action' field: |
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292 if item[2] in ('metal', 'tal', 'xmlns', 'i18n'): |
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293 if not self.showtal: |
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294 continue |
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295 ok, name, s = self.attrAction(item) |
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296 else: |
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297 ok, name, s = attrAction(self, item) |
| 1049 | 298 if not ok: |
| 299 continue | |
| 300 slen = _len(s) | |
| 301 if (wrap and | |
| 302 col >= align and | |
| 303 col + 1 + slen > wrap): | |
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304 append("\n") |
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305 append(" "*align) |
| 1049 | 306 col = align + slen |
| 307 else: | |
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308 append(" ") |
| 1049 | 309 col = col + 1 + slen |
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310 append(s) |
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311 append(end) |
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312 self._stream_write("".join(L)) |
| 1049 | 313 col = col + endlen |
| 314 finally: | |
| 315 self.col = col | |
| 316 bytecode_handlers["startTag"] = do_startTag | |
| 317 | |
| 318 def attrAction(self, item): | |
| 319 name, value, action = item[:3] | |
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320 if action == 'insert': |
| 1049 | 321 return 0, name, value |
| 322 macs = self.macroStack | |
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323 if action == 'metal' and self.metal and macs: |
| 1049 | 324 if len(macs) > 1 or not macs[-1][2]: |
| 325 # Drop all METAL attributes at a use-depth above one. | |
| 326 return 0, name, value | |
| 327 # Clear 'entering' flag | |
| 328 macs[-1][2] = 0 | |
| 329 # Convert or drop depth-one METAL attributes. | |
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330 i = name.rfind(":") + 1 |
| 1049 | 331 prefix, suffix = name[:i], name[i:] |
| 332 if suffix == "define-macro": | |
| 333 # Convert define-macro as we enter depth one. | |
| 334 name = prefix + "use-macro" | |
| 335 value = macs[-1][0] # Macro name | |
| 336 elif suffix == "define-slot": | |
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337 name = prefix + "fill-slot" |
| 1049 | 338 elif suffix == "fill-slot": |
| 339 pass | |
| 340 else: | |
| 341 return 0, name, value | |
| 342 | |
| 343 if value is None: | |
| 344 value = name | |
| 345 else: | |
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346 value = '%s="%s"' % (name, attrEscape(value)) |
| 1049 | 347 return 1, name, value |
| 348 | |
| 349 def attrAction_tal(self, item): | |
| 350 name, value, action = item[:3] | |
| 351 ok = 1 | |
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352 expr, xlat, msgid = item[3:] |
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353 if self.html and name.lower() in BOOLEAN_HTML_ATTRS: |
| 1049 | 354 evalue = self.engine.evaluateBoolean(item[3]) |
| 355 if evalue is self.Default: | |
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356 if action == 'insert': # Cancelled insert |
| 1049 | 357 ok = 0 |
| 358 elif evalue: | |
| 359 value = None | |
| 360 else: | |
| 361 ok = 0 | |
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362 elif expr is not None: |
| 1049 | 363 evalue = self.engine.evaluateText(item[3]) |
| 364 if evalue is self.Default: | |
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365 if action == 'insert': # Cancelled insert |
| 1049 | 366 ok = 0 |
| 367 else: | |
| 368 if evalue is None: | |
| 369 ok = 0 | |
| 370 value = evalue | |
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371 else: |
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372 evalue = None |
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373 |
| 1049 | 374 if ok: |
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375 if xlat: |
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376 translated = self.translate(msgid or value, value, {}) |
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377 if translated is not None: |
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378 value = translated |
| 1049 | 379 if value is None: |
| 380 value = name | |
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381 elif evalue is self.Default: |
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382 value = attrEscape(value) |
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383 else: |
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384 value = escape(value, quote=1) |
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385 value = '%s="%s"' % (name, value) |
| 1049 | 386 return ok, name, value |
| 387 bytecode_handlers["<attrAction>"] = attrAction | |
| 388 | |
| 389 def no_tag(self, start, program): | |
| 390 state = self.saveState() | |
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391 self.stream = stream = self.StringIO() |
| 1049 | 392 self._stream_write = stream.write |
| 393 self.interpret(start) | |
| 394 self.restoreOutputState(state) | |
| 395 self.interpret(program) | |
| 396 | |
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397 def do_optTag(self, args_tuple, |
| 1049 | 398 omit=0): |
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399 (name, cexpr, tag_ns, isend, start, program) = args_tuple |
| 1049 | 400 if tag_ns and not self.showtal: |
| 401 return self.no_tag(start, program) | |
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402 |
| 1049 | 403 self.interpret(start) |
| 404 if not isend: | |
| 405 self.interpret(program) | |
| 406 s = '</%s>' % name | |
| 407 self._stream_write(s) | |
| 408 self.col = self.col + len(s) | |
| 409 | |
| 410 def do_optTag_tal(self, stuff): | |
| 411 cexpr = stuff[1] | |
| 412 if cexpr is not None and (cexpr == '' or | |
| 413 self.engine.evaluateBoolean(cexpr)): | |
| 414 self.no_tag(stuff[-2], stuff[-1]) | |
| 415 else: | |
| 416 self.do_optTag(stuff) | |
| 417 bytecode_handlers["optTag"] = do_optTag | |
| 418 | |
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419 def do_rawtextBeginScope(self, args_tuple): |
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420 (s, col, position, closeprev, dict) = args_tuple |
| 1049 | 421 self._stream_write(s) |
| 422 self.col = col | |
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423 self.position = position |
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424 self.engine.setPosition(position) |
| 1049 | 425 if closeprev: |
| 426 engine = self.engine | |
| 427 engine.endScope() | |
| 428 engine.beginScope() | |
| 429 else: | |
| 430 self.engine.beginScope() | |
| 431 self.scopeLevel = self.scopeLevel + 1 | |
| 432 | |
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433 def do_rawtextBeginScope_tal(self, args_tuple): |
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434 (s, col, position, closeprev, dict) = args_tuple |
| 1049 | 435 self._stream_write(s) |
| 436 self.col = col | |
| 437 engine = self.engine | |
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438 self.position = position |
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439 engine.setPosition(position) |
| 1049 | 440 if closeprev: |
| 441 engine.endScope() | |
| 442 engine.beginScope() | |
| 443 else: | |
| 444 engine.beginScope() | |
| 445 self.scopeLevel = self.scopeLevel + 1 | |
| 446 engine.setLocal("attrs", dict) | |
| 447 bytecode_handlers["rawtextBeginScope"] = do_rawtextBeginScope | |
| 448 | |
| 449 def do_beginScope(self, dict): | |
| 450 self.engine.beginScope() | |
| 451 self.scopeLevel = self.scopeLevel + 1 | |
| 452 | |
| 453 def do_beginScope_tal(self, dict): | |
| 454 engine = self.engine | |
| 455 engine.beginScope() | |
| 456 engine.setLocal("attrs", dict) | |
| 457 self.scopeLevel = self.scopeLevel + 1 | |
| 458 bytecode_handlers["beginScope"] = do_beginScope | |
| 459 | |
| 460 def do_endScope(self, notused=None): | |
| 461 self.engine.endScope() | |
| 462 self.scopeLevel = self.scopeLevel - 1 | |
| 463 bytecode_handlers["endScope"] = do_endScope | |
| 464 | |
| 465 def do_setLocal(self, notused): | |
| 466 pass | |
| 467 | |
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468 def do_setLocal_tal(self, name_expr): |
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469 (name, expr) = name_expr |
| 1049 | 470 self.engine.setLocal(name, self.engine.evaluateValue(expr)) |
| 471 bytecode_handlers["setLocal"] = do_setLocal | |
| 472 | |
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473 def do_setGlobal_tal(self, name_expr): |
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474 (name, expr) = name_expr |
| 1049 | 475 self.engine.setGlobal(name, self.engine.evaluateValue(expr)) |
| 476 bytecode_handlers["setGlobal"] = do_setLocal | |
| 477 | |
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478 def do_beginI18nContext(self, settings): |
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479 get = settings.get |
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480 self.i18nContext = TranslationContext(self.i18nContext, |
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481 domain=get("domain"), |
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482 source=get("source"), |
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483 target=get("target")) |
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484 bytecode_handlers["beginI18nContext"] = do_beginI18nContext |
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485 |
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486 def do_endI18nContext(self, notused=None): |
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487 self.i18nContext = self.i18nContext.parent |
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488 assert self.i18nContext is not None |
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489 bytecode_handlers["endI18nContext"] = do_endI18nContext |
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490 |
| 1049 | 491 def do_insertText(self, stuff): |
| 492 self.interpret(stuff[1]) | |
| 493 | |
| 494 def do_insertText_tal(self, stuff): | |
| 495 text = self.engine.evaluateText(stuff[0]) | |
| 496 if text is None: | |
| 497 return | |
| 498 if text is self.Default: | |
| 499 self.interpret(stuff[1]) | |
| 500 return | |
| 501 s = escape(text) | |
| 502 self._stream_write(s) | |
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503 i = s.rfind('\n') |
| 1049 | 504 if i < 0: |
| 505 self.col = self.col + len(s) | |
| 506 else: | |
| 507 self.col = len(s) - (i + 1) | |
| 508 bytecode_handlers["insertText"] = do_insertText | |
| 509 | |
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510 def do_i18nVariable(self, stuff): |
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511 varname, program, expression = stuff |
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512 if expression is None: |
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513 # The value is implicitly the contents of this tag, so we have to |
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514 # evaluate the mini-program to get the value of the variable. |
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515 state = self.saveState() |
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516 try: |
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517 tmpstream = self.StringIO() |
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518 self.interpretWithStream(program, tmpstream) |
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519 value = normalize(tmpstream.getvalue()) |
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520 finally: |
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521 self.restoreState(state) |
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522 else: |
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523 # Evaluate the value to be associated with the variable in the |
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524 # i18n interpolation dictionary. |
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525 value = self.engine.evaluate(expression) |
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526 # Either the i18n:name tag is nested inside an i18n:translate in which |
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527 # case the last item on the stack has the i18n dictionary and string |
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528 # representation, or the i18n:name and i18n:translate attributes are |
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529 # in the same tag, in which case the i18nStack will be empty. In that |
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530 # case we can just output the ${name} to the stream |
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531 i18ndict, srepr = self.i18nStack[-1] |
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532 i18ndict[varname] = value |
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533 placeholder = '${%s}' % varname |
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534 srepr.append(placeholder) |
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535 self._stream_write(placeholder) |
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536 bytecode_handlers['i18nVariable'] = do_i18nVariable |
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537 |
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538 def do_insertTranslation(self, stuff): |
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539 i18ndict = {} |
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540 srepr = [] |
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541 obj = None |
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542 self.i18nStack.append((i18ndict, srepr)) |
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543 msgid = stuff[0] |
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544 # We need to evaluate the content of the tag because that will give us |
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545 # several useful pieces of information. First, the contents will |
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546 # include an implicit message id, if no explicit one was given. |
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547 # Second, it will evaluate any i18nVariable definitions in the body of |
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548 # the translation (necessary for $varname substitutions). |
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549 # |
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550 # Use a temporary stream to capture the interpretation of the |
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551 # subnodes, which should /not/ go to the output stream. |
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552 tmpstream = self.StringIO() |
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553 self.interpretWithStream(stuff[1], tmpstream) |
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554 default = tmpstream.getvalue() |
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555 # We only care about the evaluated contents if we need an implicit |
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556 # message id. All other useful information will be in the i18ndict on |
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557 # the top of the i18nStack. |
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558 if msgid == '': |
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559 msgid = normalize(default) |
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560 self.i18nStack.pop() |
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561 # See if there is was an i18n:data for msgid |
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562 if len(stuff) > 2: |
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563 obj = self.engine.evaluate(stuff[2]) |
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564 xlated_msgid = self.translate(msgid, default, i18ndict, obj) |
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565 assert xlated_msgid is not None, self.position |
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566 self._stream_write(xlated_msgid) |
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567 bytecode_handlers['insertTranslation'] = do_insertTranslation |
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568 |
| 1049 | 569 def do_insertStructure(self, stuff): |
| 570 self.interpret(stuff[2]) | |
| 571 | |
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572 def do_insertStructure_tal(self, expr_repldict_block): |
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573 (expr, repldict, block) = expr_repldict_block |
| 1049 | 574 structure = self.engine.evaluateStructure(expr) |
| 575 if structure is None: | |
| 576 return | |
| 577 if structure is self.Default: | |
| 578 self.interpret(block) | |
| 579 return | |
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580 text = ustr(structure) |
| 1049 | 581 if not (repldict or self.strictinsert): |
| 582 # Take a shortcut, no error checking | |
| 583 self.stream_write(text) | |
| 584 return | |
| 585 if self.html: | |
| 586 self.insertHTMLStructure(text, repldict) | |
| 587 else: | |
| 588 self.insertXMLStructure(text, repldict) | |
| 589 bytecode_handlers["insertStructure"] = do_insertStructure | |
| 590 | |
| 591 def insertHTMLStructure(self, text, repldict): | |
|
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592 from .HTMLTALParser import HTMLTALParser |
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593 gen = AltTALGenerator(repldict, self.engine.getCompiler(), 0) |
| 1049 | 594 p = HTMLTALParser(gen) # Raises an exception if text is invalid |
| 595 p.parseString(text) | |
| 596 program, macros = p.getCode() | |
| 597 self.interpret(program) | |
| 598 | |
| 599 def insertXMLStructure(self, text, repldict): | |
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600 from .TALParser import TALParser |
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601 gen = AltTALGenerator(repldict, self.engine.getCompiler(), 0) |
| 1049 | 602 p = TALParser(gen) |
| 603 gen.enable(0) | |
| 604 p.parseFragment('<!DOCTYPE foo PUBLIC "foo" "bar"><foo>') | |
| 605 gen.enable(1) | |
| 606 p.parseFragment(text) # Raises an exception if text is invalid | |
| 607 gen.enable(0) | |
| 608 p.parseFragment('</foo>', 1) | |
| 609 program, macros = gen.getCode() | |
| 610 self.interpret(program) | |
| 611 | |
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612 def do_loop(self, name_expr_block): |
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613 (name, expr, block) = name_expr_block |
| 1049 | 614 self.interpret(block) |
| 615 | |
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616 def do_loop_tal(self, name_expr_block): |
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617 (name, expr, block) = name_expr_block |
| 1049 | 618 iterator = self.engine.setRepeat(name, expr) |
| 619 while iterator.next(): | |
| 620 self.interpret(block) | |
| 621 bytecode_handlers["loop"] = do_loop | |
| 622 | |
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623 def translate(self, msgid, default, i18ndict, obj=None): |
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624 if obj: |
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625 i18ndict.update(obj) |
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626 if not self.i18nInterpolate: |
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627 return msgid |
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628 # XXX We need to pass in one of context or target_language |
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629 return self.engine.translate(self.i18nContext.domain, |
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630 msgid, i18ndict, default=default) |
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631 |
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632 def do_rawtextColumn(self, s_col): |
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633 (s, col) = s_col |
| 1049 | 634 self._stream_write(s) |
| 635 self.col = col | |
| 636 bytecode_handlers["rawtextColumn"] = do_rawtextColumn | |
| 637 | |
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638 def do_rawtextOffset(self, s_offset): |
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639 (s, offset) = s_offset |
| 1049 | 640 self._stream_write(s) |
| 641 self.col = self.col + offset | |
| 642 bytecode_handlers["rawtextOffset"] = do_rawtextOffset | |
| 643 | |
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644 def do_condition(self, condition_block): |
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645 (condition, block) = condition_block |
| 1049 | 646 if not self.tal or self.engine.evaluateBoolean(condition): |
| 647 self.interpret(block) | |
| 648 bytecode_handlers["condition"] = do_condition | |
| 649 | |
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650 def do_defineMacro(self, macroName_macro): |
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651 (macroName, macro) = macroName_macro |
| 1049 | 652 macs = self.macroStack |
| 653 if len(macs) == 1: | |
| 654 entering = macs[-1][2] | |
| 655 if not entering: | |
| 656 macs.append(None) | |
| 657 self.interpret(macro) | |
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658 assert macs[-1] is None |
| 1049 | 659 macs.pop() |
| 660 return | |
| 661 self.interpret(macro) | |
| 662 bytecode_handlers["defineMacro"] = do_defineMacro | |
| 663 | |
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664 def do_useMacro(self, args_tuple): |
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665 (macroName, macroExpr, compiledSlots, block) = args_tuple |
| 1049 | 666 if not self.metal: |
| 667 self.interpret(block) | |
| 668 return | |
| 669 macro = self.engine.evaluateMacro(macroExpr) | |
| 670 if macro is self.Default: | |
| 671 macro = block | |
| 672 else: | |
| 673 if not isCurrentVersion(macro): | |
| 674 raise METALError("macro %s has incompatible version %s" % | |
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675 (repr(macroName), repr(getProgramVersion(macro))), |
| 1049 | 676 self.position) |
| 677 mode = getProgramMode(macro) | |
| 678 if mode != (self.html and "html" or "xml"): | |
| 679 raise METALError("macro %s has incompatible mode %s" % | |
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680 (repr(macroName), repr(mode)), self.position) |
| 1049 | 681 self.pushMacro(macroName, compiledSlots) |
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682 prev_source = self.sourceFile |
| 1049 | 683 self.interpret(macro) |
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684 if self.sourceFile != prev_source: |
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685 self.engine.setSourceFile(prev_source) |
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686 self.sourceFile = prev_source |
| 1049 | 687 self.popMacro() |
| 688 bytecode_handlers["useMacro"] = do_useMacro | |
| 689 | |
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690 def do_fillSlot(self, slotName_block): |
| 1049 | 691 # This is only executed if the enclosing 'use-macro' evaluates |
| 692 # to 'default'. | |
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693 (slotName, block) = slotName_block |
| 1049 | 694 self.interpret(block) |
| 695 bytecode_handlers["fillSlot"] = do_fillSlot | |
| 696 | |
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697 def do_defineSlot(self, slotName_block): |
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698 (slotName, block) = slotName_block |
| 1049 | 699 if not self.metal: |
| 700 self.interpret(block) | |
| 701 return | |
| 702 macs = self.macroStack | |
| 703 if macs and macs[-1] is not None: | |
| 704 macroName, slots = self.popMacro()[:2] | |
| 705 slot = slots.get(slotName) | |
| 706 if slot is not None: | |
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707 prev_source = self.sourceFile |
| 1049 | 708 self.interpret(slot) |
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709 if self.sourceFile != prev_source: |
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710 self.engine.setSourceFile(prev_source) |
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711 self.sourceFile = prev_source |
| 1049 | 712 self.pushMacro(macroName, slots, entering=0) |
| 713 return | |
| 714 self.pushMacro(macroName, slots) | |
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715 # Falling out of the 'if' allows the macro to be interpreted. |
| 1049 | 716 self.interpret(block) |
| 717 bytecode_handlers["defineSlot"] = do_defineSlot | |
| 718 | |
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719 def do_onError(self, block_handler): |
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720 (block, handler) = block_handler |
| 1049 | 721 self.interpret(block) |
| 722 | |
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723 def do_onError_tal(self, block_handler): |
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724 (block, handler) = block_handler |
| 1049 | 725 state = self.saveState() |
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726 self.stream = stream = self.StringIO() |
| 1049 | 727 self._stream_write = stream.write |
| 728 try: | |
| 729 self.interpret(block) | |
| 730 except: | |
| 731 exc = sys.exc_info()[1] | |
| 732 self.restoreState(state) | |
| 733 engine = self.engine | |
| 734 engine.beginScope() | |
| 735 error = engine.createErrorInfo(exc, self.position) | |
| 736 engine.setLocal('error', error) | |
| 737 try: | |
| 738 self.interpret(handler) | |
| 739 finally: | |
| 740 engine.endScope() | |
| 741 else: | |
| 742 self.restoreOutputState(state) | |
| 743 self.stream_write(stream.getvalue()) | |
| 744 bytecode_handlers["onError"] = do_onError | |
| 745 | |
| 746 bytecode_handlers_tal = bytecode_handlers.copy() | |
| 747 bytecode_handlers_tal["rawtextBeginScope"] = do_rawtextBeginScope_tal | |
| 748 bytecode_handlers_tal["beginScope"] = do_beginScope_tal | |
| 749 bytecode_handlers_tal["setLocal"] = do_setLocal_tal | |
| 750 bytecode_handlers_tal["setGlobal"] = do_setGlobal_tal | |
| 751 bytecode_handlers_tal["insertStructure"] = do_insertStructure_tal | |
| 752 bytecode_handlers_tal["insertText"] = do_insertText_tal | |
| 753 bytecode_handlers_tal["loop"] = do_loop_tal | |
| 754 bytecode_handlers_tal["onError"] = do_onError_tal | |
| 755 bytecode_handlers_tal["<attrAction>"] = attrAction_tal | |
| 756 bytecode_handlers_tal["optTag"] = do_optTag_tal | |
| 757 | |
| 758 | |
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759 def _write_ValueError(s): |
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760 raise ValueError("I/O operation on closed file") |