1049
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
1 ##############################################################################
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
2 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
3 # Copyright (c) 2001, 2002 Zope Corporation and Contributors.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
4 # All Rights Reserved.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
5 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
6 # This software is subject to the provisions of the Zope Public License,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
7 # Version 2.0 (ZPL). A copy of the ZPL should accompany this distribution.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
8 # THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
9 # WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
10 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
11 # FOR A PARTICULAR PURPOSE
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
12 #
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
13 ##############################################################################
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
14 """
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
15 Code generator for TALInterpreter intermediate code.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
16 """
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
17
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
18 import string
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
19 import re
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
20 import cgi
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
21
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
22 from TALDefs import *
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
23
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
24 class TALGenerator:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
25
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
26 inMacroUse = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
27 inMacroDef = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
28 source_file = None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
29
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
30 def __init__(self, expressionCompiler=None, xml=1, source_file=None):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
31 if not expressionCompiler:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
32 from DummyEngine import DummyEngine
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
33 expressionCompiler = DummyEngine()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
34 self.expressionCompiler = expressionCompiler
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
35 self.CompilerError = expressionCompiler.getCompilerError()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
36 self.program = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
37 self.stack = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
38 self.todoStack = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
39 self.macros = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
40 self.slots = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
41 self.slotStack = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
42 self.xml = xml
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
43 self.emit("version", TAL_VERSION)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
44 self.emit("mode", xml and "xml" or "html")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
45 if source_file is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
46 self.source_file = source_file
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
47 self.emit("setSourceFile", source_file)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
48
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
49 def getCode(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
50 assert not self.stack
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
51 assert not self.todoStack
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
52 return self.optimize(self.program), self.macros
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
53
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
54 def optimize(self, program):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
55 output = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
56 collect = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
57 rawseen = cursor = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
58 if self.xml:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
59 endsep = "/>"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
60 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
61 endsep = " />"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
62 for cursor in xrange(len(program)+1):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
63 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
64 item = program[cursor]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
65 except IndexError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
66 item = (None, None)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
67 opcode = item[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
68 if opcode == "rawtext":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
69 collect.append(item[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
70 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
71 if opcode == "endTag":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
72 collect.append("</%s>" % item[1])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
73 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
74 if opcode == "startTag":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
75 if self.optimizeStartTag(collect, item[1], item[2], ">"):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
76 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
77 if opcode == "startEndTag":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
78 if self.optimizeStartTag(collect, item[1], item[2], endsep):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
79 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
80 if opcode in ("beginScope", "endScope"):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
81 # Push *Scope instructions in front of any text instructions;
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
82 # this allows text instructions separated only by *Scope
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
83 # instructions to be joined together.
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
84 output.append(self.optimizeArgsList(item))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
85 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
86 text = string.join(collect, "")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
87 if text:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
88 i = string.rfind(text, "\n")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
89 if i >= 0:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
90 i = len(text) - (i + 1)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
91 output.append(("rawtextColumn", (text, i)))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
92 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
93 output.append(("rawtextOffset", (text, len(text))))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
94 if opcode != None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
95 output.append(self.optimizeArgsList(item))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
96 rawseen = cursor+1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
97 collect = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
98 return self.optimizeCommonTriple(output)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
99
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
100 def optimizeArgsList(self, item):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
101 if len(item) == 2:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
102 return item
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
103 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
104 return item[0], tuple(item[1:])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
105
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
106 actionIndex = {"replace":0, "insert":1, "metal":2, "tal":3, "xmlns":4,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
107 0: 0, 1: 1, 2: 2, 3: 3, 4: 4}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
108 def optimizeStartTag(self, collect, name, attrlist, end):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
109 if not attrlist:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
110 collect.append("<%s%s" % (name, end))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
111 return 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
112 opt = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
113 new = ["<" + name]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
114 for i in range(len(attrlist)):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
115 item = attrlist[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
116 if len(item) > 2:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
117 opt = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
118 name, value, action = item[:3]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
119 action = self.actionIndex[action]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
120 attrlist[i] = (name, value, action) + item[3:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
121 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
122 if item[1] is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
123 s = item[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
124 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
125 s = "%s=%s" % (item[0], quote(item[1]))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
126 attrlist[i] = item[0], s
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
127 if item[1] is None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
128 new.append(" " + item[0])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
129 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
130 new.append(" %s=%s" % (item[0], quote(item[1])))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
131 if opt:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
132 new.append(end)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
133 collect.extend(new)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
134 return opt
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
135
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
136 def optimizeCommonTriple(self, program):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
137 if len(program) < 3:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
138 return program
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
139 output = program[:2]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
140 prev2, prev1 = output
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
141 for item in program[2:]:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
142 if ( item[0] == "beginScope"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
143 and prev1[0] == "setPosition"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
144 and prev2[0] == "rawtextColumn"):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
145 position = output.pop()[1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
146 text, column = output.pop()[1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
147 prev1 = None, None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
148 closeprev = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
149 if output and output[-1][0] == "endScope":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
150 closeprev = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
151 output.pop()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
152 item = ("rawtextBeginScope",
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
153 (text, column, position, closeprev, item[1]))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
154 output.append(item)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
155 prev2 = prev1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
156 prev1 = item
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
157 return output
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
158
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
159 def todoPush(self, todo):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
160 self.todoStack.append(todo)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
161
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
162 def todoPop(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
163 return self.todoStack.pop()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
164
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
165 def compileExpression(self, expr):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
166 try:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
167 return self.expressionCompiler.compile(expr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
168 except self.CompilerError, err:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
169 raise TALError('%s in expression %s' % (err.args[0], `expr`),
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
170 self.position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
171
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
172 def pushProgram(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
173 self.stack.append(self.program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
174 self.program = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
175
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
176 def popProgram(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
177 program = self.program
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
178 self.program = self.stack.pop()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
179 return self.optimize(program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
180
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
181 def pushSlots(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
182 self.slotStack.append(self.slots)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
183 self.slots = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
184
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
185 def popSlots(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
186 slots = self.slots
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
187 self.slots = self.slotStack.pop()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
188 return slots
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
189
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
190 def emit(self, *instruction):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
191 self.program.append(instruction)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
192
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
193 def emitStartTag(self, name, attrlist, isend=0):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
194 if isend:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
195 opcode = "startEndTag"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
196 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
197 opcode = "startTag"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
198 self.emit(opcode, name, attrlist)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
199
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
200 def emitEndTag(self, name):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
201 if self.xml and self.program and self.program[-1][0] == "startTag":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
202 # Minimize empty element
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
203 self.program[-1] = ("startEndTag",) + self.program[-1][1:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
204 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
205 self.emit("endTag", name)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
206
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
207 def emitOptTag(self, name, optTag, isend):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
208 program = self.popProgram() #block
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
209 start = self.popProgram() #start tag
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
210 if (isend or not program) and self.xml:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
211 # Minimize empty element
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
212 start[-1] = ("startEndTag",) + start[-1][1:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
213 isend = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
214 cexpr = optTag[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
215 if cexpr:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
216 cexpr = self.compileExpression(optTag[0])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
217 self.emit("optTag", name, cexpr, optTag[1], isend, start, program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
218
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
219 def emitRawText(self, text):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
220 self.emit("rawtext", text)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
221
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
222 def emitText(self, text):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
223 self.emitRawText(cgi.escape(text))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
224
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
225 def emitDefines(self, defines):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
226 for part in splitParts(defines):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
227 m = re.match(
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
228 r"(?s)\s*(?:(global|local)\s+)?(%s)\s+(.*)\Z" % NAME_RE, part)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
229 if not m:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
230 raise TALError("invalid define syntax: " + `part`,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
231 self.position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
232 scope, name, expr = m.group(1, 2, 3)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
233 scope = scope or "local"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
234 cexpr = self.compileExpression(expr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
235 if scope == "local":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
236 self.emit("setLocal", name, cexpr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
237 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
238 self.emit("setGlobal", name, cexpr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
239
|
|
1244
|
240 def emitOnError(self, name, onError, TALtag, isend):
|
1049
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
241 block = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
242 key, expr = parseSubstitution(onError)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
243 cexpr = self.compileExpression(expr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
244 if key == "text":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
245 self.emit("insertText", cexpr, [])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
246 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
247 assert key == "structure"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
248 self.emit("insertStructure", cexpr, {}, [])
|
|
1244
|
249 if TALtag:
|
|
|
250 self.emitOptTag(name, (None, 1), isend)
|
|
|
251 else:
|
|
|
252 self.emitEndTag(name)
|
1049
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
253 handler = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
254 self.emit("onError", block, handler)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
255
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
256 def emitCondition(self, expr):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
257 cexpr = self.compileExpression(expr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
258 program = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
259 self.emit("condition", cexpr, program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
260
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
261 def emitRepeat(self, arg):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
262 m = re.match("(?s)\s*(%s)\s+(.*)\Z" % NAME_RE, arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
263 if not m:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
264 raise TALError("invalid repeat syntax: " + `arg`,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
265 self.position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
266 name, expr = m.group(1, 2)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
267 cexpr = self.compileExpression(expr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
268 program = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
269 self.emit("loop", name, cexpr, program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
270
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
271 def emitSubstitution(self, arg, attrDict={}):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
272 key, expr = parseSubstitution(arg)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
273 cexpr = self.compileExpression(expr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
274 program = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
275 if key == "text":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
276 self.emit("insertText", cexpr, program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
277 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
278 assert key == "structure"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
279 self.emit("insertStructure", cexpr, attrDict, program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
280
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
281 def emitDefineMacro(self, macroName):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
282 program = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
283 macroName = string.strip(macroName)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
284 if self.macros.has_key(macroName):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
285 raise METALError("duplicate macro definition: %s" % `macroName`,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
286 self.position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
287 if not re.match('%s$' % NAME_RE, macroName):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
288 raise METALError("invalid macro name: %s" % `macroName`,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
289 self.position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
290 self.macros[macroName] = program
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
291 self.inMacroDef = self.inMacroDef - 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
292 self.emit("defineMacro", macroName, program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
293
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
294 def emitUseMacro(self, expr):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
295 cexpr = self.compileExpression(expr)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
296 program = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
297 self.inMacroUse = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
298 self.emit("useMacro", expr, cexpr, self.popSlots(), program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
299
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
300 def emitDefineSlot(self, slotName):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
301 program = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
302 slotName = string.strip(slotName)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
303 if not re.match('%s$' % NAME_RE, slotName):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
304 raise METALError("invalid slot name: %s" % `slotName`,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
305 self.position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
306 self.emit("defineSlot", slotName, program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
307
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
308 def emitFillSlot(self, slotName):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
309 program = self.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
310 slotName = string.strip(slotName)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
311 if self.slots.has_key(slotName):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
312 raise METALError("duplicate fill-slot name: %s" % `slotName`,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
313 self.position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
314 if not re.match('%s$' % NAME_RE, slotName):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
315 raise METALError("invalid slot name: %s" % `slotName`,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
316 self.position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
317 self.slots[slotName] = program
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
318 self.inMacroUse = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
319 self.emit("fillSlot", slotName, program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
320
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
321 def unEmitWhitespace(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
322 collect = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
323 i = len(self.program) - 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
324 while i >= 0:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
325 item = self.program[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
326 if item[0] != "rawtext":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
327 break
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
328 text = item[1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
329 if not re.match(r"\A\s*\Z", text):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
330 break
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
331 collect.append(text)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
332 i = i-1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
333 del self.program[i+1:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
334 if i >= 0 and self.program[i][0] == "rawtext":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
335 text = self.program[i][1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
336 m = re.search(r"\s+\Z", text)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
337 if m:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
338 self.program[i] = ("rawtext", text[:m.start()])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
339 collect.append(m.group())
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
340 collect.reverse()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
341 return string.join(collect, "")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
342
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
343 def unEmitNewlineWhitespace(self):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
344 collect = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
345 i = len(self.program)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
346 while i > 0:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
347 i = i-1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
348 item = self.program[i]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
349 if item[0] != "rawtext":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
350 break
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
351 text = item[1]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
352 if re.match(r"\A[ \t]*\Z", text):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
353 collect.append(text)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
354 continue
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
355 m = re.match(r"(?s)^(.*)(\n[ \t]*)\Z", text)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
356 if not m:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
357 break
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
358 text, rest = m.group(1, 2)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
359 collect.reverse()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
360 rest = rest + string.join(collect, "")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
361 del self.program[i:]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
362 if text:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
363 self.emit("rawtext", text)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
364 return rest
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
365 return None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
366
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
367 def replaceAttrs(self, attrlist, repldict):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
368 if not repldict:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
369 return attrlist
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
370 newlist = []
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
371 for item in attrlist:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
372 key = item[0]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
373 if repldict.has_key(key):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
374 item = item[:2] + ("replace", repldict[key])
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
375 del repldict[key]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
376 newlist.append(item)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
377 for key, value in repldict.items(): # Add dynamic-only attributes
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
378 item = (key, None, "insert", value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
379 newlist.append(item)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
380 return newlist
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
381
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
382 def emitStartElement(self, name, attrlist, taldict, metaldict,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
383 position=(None, None), isend=0):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
384 if not taldict and not metaldict:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
385 # Handle the simple, common case
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
386 self.emitStartTag(name, attrlist, isend)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
387 self.todoPush({})
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
388 if isend:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
389 self.emitEndElement(name, isend)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
390 return
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
391
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
392 self.position = position
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
393 for key, value in taldict.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
394 if key not in KNOWN_TAL_ATTRIBUTES:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
395 raise TALError("bad TAL attribute: " + `key`, position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
396 if not (value or key == 'omit-tag'):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
397 raise TALError("missing value for TAL attribute: " +
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
398 `key`, position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
399 for key, value in metaldict.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
400 if key not in KNOWN_METAL_ATTRIBUTES:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
401 raise METALError("bad METAL attribute: " + `key`,
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
402 position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
403 if not value:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
404 raise TALError("missing value for METAL attribute: " +
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
405 `key`, position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
406 todo = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
407 defineMacro = metaldict.get("define-macro")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
408 useMacro = metaldict.get("use-macro")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
409 defineSlot = metaldict.get("define-slot")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
410 fillSlot = metaldict.get("fill-slot")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
411 define = taldict.get("define")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
412 condition = taldict.get("condition")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
413 repeat = taldict.get("repeat")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
414 content = taldict.get("content")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
415 replace = taldict.get("replace")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
416 attrsubst = taldict.get("attributes")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
417 onError = taldict.get("on-error")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
418 omitTag = taldict.get("omit-tag")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
419 TALtag = taldict.get("tal tag")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
420 if len(metaldict) > 1 and (defineMacro or useMacro):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
421 raise METALError("define-macro and use-macro cannot be used "
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
422 "together or with define-slot or fill-slot",
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
423 position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
424 if content and replace:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
425 raise TALError("content and replace are mutually exclusive",
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
426 position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
427
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
428 repeatWhitespace = None
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
429 if repeat:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
430 # Hack to include preceding whitespace in the loop program
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
431 repeatWhitespace = self.unEmitNewlineWhitespace()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
432 if position != (None, None):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
433 # XXX at some point we should insist on a non-trivial position
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
434 self.emit("setPosition", position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
435 if self.inMacroUse:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
436 if fillSlot:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
437 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
438 if self.source_file is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
439 self.emit("setSourceFile", self.source_file)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
440 todo["fillSlot"] = fillSlot
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
441 self.inMacroUse = 0
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
442 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
443 if fillSlot:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
444 raise METALError, ("fill-slot must be within a use-macro",
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
445 position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
446 if not self.inMacroUse:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
447 if defineMacro:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
448 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
449 self.emit("version", TAL_VERSION)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
450 self.emit("mode", self.xml and "xml" or "html")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
451 if self.source_file is not None:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
452 self.emit("setSourceFile", self.source_file)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
453 todo["defineMacro"] = defineMacro
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
454 self.inMacroDef = self.inMacroDef + 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
455 if useMacro:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
456 self.pushSlots()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
457 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
458 todo["useMacro"] = useMacro
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
459 self.inMacroUse = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
460 if defineSlot:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
461 if not self.inMacroDef:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
462 raise METALError, (
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
463 "define-slot must be within a define-macro",
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
464 position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
465 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
466 todo["defineSlot"] = defineSlot
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
467
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
468 if taldict:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
469 dict = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
470 for item in attrlist:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
471 key, value = item[:2]
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
472 dict[key] = value
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
473 self.emit("beginScope", dict)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
474 todo["scope"] = 1
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
475 if onError:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
476 self.pushProgram() # handler
|
|
1244
|
477 if TALtag:
|
|
|
478 self.pushProgram() # start
|
1049
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
479 self.emitStartTag(name, list(attrlist)) # Must copy attrlist!
|
|
1244
|
480 if TALtag:
|
|
|
481 self.pushProgram() # start
|
1049
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
482 self.pushProgram() # block
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
483 todo["onError"] = onError
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
484 if define:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
485 self.emitDefines(define)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
486 todo["define"] = define
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
487 if condition:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
488 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
489 todo["condition"] = condition
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
490 if repeat:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
491 todo["repeat"] = repeat
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
492 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
493 if repeatWhitespace:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
494 self.emitText(repeatWhitespace)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
495 if content:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
496 todo["content"] = content
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
497 if replace:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
498 todo["replace"] = replace
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
499 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
500 optTag = omitTag is not None or TALtag
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
501 if optTag:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
502 todo["optional tag"] = omitTag, TALtag
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
503 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
504 if attrsubst:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
505 repldict = parseAttributeReplacements(attrsubst)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
506 for key, value in repldict.items():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
507 repldict[key] = self.compileExpression(value)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
508 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
509 repldict = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
510 if replace:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
511 todo["repldict"] = repldict
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
512 repldict = {}
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
513 self.emitStartTag(name, self.replaceAttrs(attrlist, repldict), isend)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
514 if optTag:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
515 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
516 if content:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
517 self.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
518 if todo and position != (None, None):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
519 todo["position"] = position
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
520 self.todoPush(todo)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
521 if isend:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
522 self.emitEndElement(name, isend)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
523
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
524 def emitEndElement(self, name, isend=0, implied=0):
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
525 todo = self.todoPop()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
526 if not todo:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
527 # Shortcut
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
528 if not isend:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
529 self.emitEndTag(name)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
530 return
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
531
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
532 self.position = position = todo.get("position", (None, None))
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
533 defineMacro = todo.get("defineMacro")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
534 useMacro = todo.get("useMacro")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
535 defineSlot = todo.get("defineSlot")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
536 fillSlot = todo.get("fillSlot")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
537 repeat = todo.get("repeat")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
538 content = todo.get("content")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
539 replace = todo.get("replace")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
540 condition = todo.get("condition")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
541 onError = todo.get("onError")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
542 define = todo.get("define")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
543 repldict = todo.get("repldict", {})
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
544 scope = todo.get("scope")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
545 optTag = todo.get("optional tag")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
546
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
547 if implied > 0:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
548 if defineMacro or useMacro or defineSlot or fillSlot:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
549 exc = METALError
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
550 what = "METAL"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
551 else:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
552 exc = TALError
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
553 what = "TAL"
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
554 raise exc("%s attributes on <%s> require explicit </%s>" %
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
555 (what, name, name), position)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
556
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
557 if content:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
558 self.emitSubstitution(content, {})
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
559 if optTag:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
560 self.emitOptTag(name, optTag, isend)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
561 elif not isend:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
562 self.emitEndTag(name)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
563 if replace:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
564 self.emitSubstitution(replace, repldict)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
565 if repeat:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
566 self.emitRepeat(repeat)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
567 if condition:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
568 self.emitCondition(condition)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
569 if onError:
|
|
1244
|
570 self.emitOnError(name, onError, optTag and optTag[1], isend)
|
1049
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
571 if scope:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
572 self.emit("endScope")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
573 if defineSlot:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
574 self.emitDefineSlot(defineSlot)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
575 if fillSlot:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
576 self.emitFillSlot(fillSlot)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
577 if useMacro:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
578 self.emitUseMacro(useMacro)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
579 if defineMacro:
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
580 self.emitDefineMacro(defineMacro)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
581
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
582 def test():
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
583 t = TALGenerator()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
584 t.pushProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
585 t.emit("bar")
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
586 p = t.popProgram()
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
587 t.emit("foo", p)
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
588
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
589 if __name__ == "__main__":
|
Richard Jones <richard@users.sourceforge.net>
parents:
diff
changeset
|
590 test()
|
