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The old CHANGES file from the Cheetah project.
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| 2.0 (Oct 12, 2007) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| - fixed exception handling issue in the C implemenation of NameMapper | |
| [patch from Eric Huss] | |
| - fixed filtering of #included subtemplates | |
| [patch from Brian Bird] | |
| See the release notes from 2.0b1-5 and 2.0rc1-8 for other changes since | |
| Cheetah 1.0. | |
| 2.0rc8 (April 11, 2007) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - added a '#unicode <encoding>' directive to indicate that the output of the | |
| template should be a unicode string even if the template source is a | |
| normal byte string. | |
| - #unicode and #encoding are mutually exclusive. Use one or the other. | |
| - #unicode must be on a line by itself. | |
| - Strings in embedded code must be explictly marked as unicode if they | |
| contain non-ascii chars: | |
| #unicode latin-1 | |
| $f(u"<some non-ascii char>") ## right | |
| $f("<some non-ascii char>") ## wrong | |
| However, this works fine: | |
| #unicode latin-1 | |
| blah blah <some non-ascii char> blah blah | |
| - fixed several unicode bugs in the compiler. | |
| - fixed some unicode issues in the standard filters. | |
| - fixed a few minor bugs in code that never gets called. Thanks to | |
| Alejandro Dubrovsky for pointing them out. | |
| - make RawOrEncodedUnicode the baseclass of all filters and remove some | |
| unused/redudant filters | |
| - added new compiler setting 'addTimestampsToCompilerOutput'. See Brian | |
| Bird's post about it. He stores his cheetah generated .py files in | |
| subversion and needed to disable the timestamp code so svn wouldn't care | |
| when he recompiles those .py modules. | |
| - added the #super directive, which calls the method from the parent class | |
| which has the same as the current #def or #block method. | |
| #def foo | |
| ... child output | |
| #super ## includes output of super(<CurrentClass>, self).foo() | |
| ... child output | |
| #end def | |
| #def bar(arg) | |
| ... child output | |
| #super(arg) ## includes output of super(<CurrentClass>, self).bar(arg) | |
| ... child output | |
| #end def | |
| - added some unit tests for the new directives | |
| 2.0rc7 (July 4, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - extended the #implements directive so an arguments list can be declared in | |
| the same fashion as #def and #block. | |
| - made the parser raise ParseError when $*placeholder, $*5*placeholder, | |
| $(placeholder), etc. are found within expressions. They are only valid in | |
| top-level text. | |
| - tweaked the parser so it's possible to place a comment on the same line as | |
| a directive without needing to explicitly close the directive first. This | |
| works regardless of whether or not you added a colon. | |
| self.verify("#if 1:\n$aStr\n#end if\n", | |
| "blarg\n") | |
| self.verify("#if 1: \n$aStr\n#end if\n", | |
| "blarg\n") | |
| self.verify("#if 1: ##comment \n$aStr\n#end if\n", | |
| "blarg\n") | |
| self.verify("#if 1 ##comment \n$aStr\n#end if\n", | |
| "blarg\n") | |
| Previously, that last test would have required an extra # to close the #if | |
| directive before the comment directive started: | |
| self.verify("#if 1 ###comment \n$aStr\n#end if\n", | |
| "blarg\n") | |
| Code that makes use of explicit directive close tokens immediately followed by | |
| another directive will still work as expected: | |
| #if test##for i in range(10)# foo $i#end for##end if | |
| - safer handling of the baseclass arg to Template.compile(). It now does | |
| the right thing if the user passes in an instance rather than a class. | |
| ImportHooks: [TR] | |
| - made it possible to specify a list of template filename extentions that are | |
| looped through while searching for template modules. E.g.: | |
| import Cheetah.ImportHooks | |
| Cheetah.ImportHooks.install(templateFileExtensions=('.tmpl','.cheetah')) | |
| Core changes by MO: | |
| - Filters are now new-style classes. | |
| - WebSafe and the other optional filters in Filters.py now use | |
| RawOrEncodedUnicode instead of Filter as a base class. This allows them | |
| to work with Unicode values containing non-ASCII characters. | |
| User-written custom filters should inherit from | |
| RawOrEncodedUnicode and call the superclass .filter() instead of str(). | |
| str() as of Python 2.4.2 still converts Unicode to string using | |
| ASCII codec, which raises UnicodeEncodeError if it contains non-ASCII | |
| characters. | |
| 2.0rc6 (Feb 4, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - added a Cheetah version dependency check that raises an assertion if a | |
| template was compiled with a previous version of Cheetah whose templates | |
| must be recompiled. | |
| - made the Cheetah compilation metadata accessible via class attributes in | |
| addition to module globals | |
| - major improvement to exception reporting in cases where bad Python syntax | |
| slips past the Cheetah parser: | |
| """ | |
| File "/usr/lib/python2.4/site-packages/Cheetah/Template.py", line 792, in compile | |
| raise parseError | |
| Cheetah.Parser.ParseError: | |
| Error in the Python code which Cheetah generated for this template: | |
| ================================================================================ | |
| invalid syntax (DynamicallyCompiledCheetahTemplate.py, line 86) | |
| Line|Python Code | |
| ----|------------------------------------------------------------- | |
| 84 | | |
| 85 | write('\n\n') | |
| 86 | for i an range(10): # generated from line 4, col 1 | |
| ^ | |
| 87 | _v = i # '$i' on line 5, col 3 | |
| 88 | if _v is not None: write(_filter(_v, rawExpr='$i')) # from line 5, col 3. | |
| 89 | write('\n') | |
| ================================================================================ | |
| Here is the corresponding Cheetah code: | |
| Line 4, column 1 | |
| Line|Cheetah Code | |
| ----|------------------------------------------------------------- | |
| 2 |#compiler useNameMapper=False | |
| 3 | | |
| 4 |#for i an range(10) | |
| ^ | |
| 5 | $i | |
| 6 |#end for | |
| 7 | | |
| """ | |
| 2.0rc5 (Feb 3, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - fixed a memory leak in Template.compile(), reported by Andrea Arcangeli | |
| - simplified concurrency locking and compile caching in Template.compile() | |
| The command line tool (CheetahWrapper.py): | |
| - added new option --settings for supplying compiler settings | |
| - added new option --templateAPIClass to replace the environment var | |
| CHEETAH_TEMPLATE_CLASS lookup I added in 2.0b1 | |
| 2.0rc4 (Jan 31, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - fixed a typo-bug in the compile hashing code in Template.compile() | |
| - improved the macros framework and made it possible to implement macros in | |
| Python code so they can be shared between templates | |
| - more work on the #i18n directive. It's now a macro directive. | |
| - added new Cheetah.Macros package | |
| - more tests | |
| 2.0rc3 (Jan 29, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - added short-form single line versions of all directives that have an #end | |
| tag, except for #errorCatcher: | |
| #if, #else, #elif, #unless, | |
| #for, #while, #repeat, | |
| #try, #except, #finally, | |
| #cache, #raw | |
| #call, #capture | |
| The #def and #block directives already had single-line versions. | |
| #if cond: foo | |
| #elif cond2: bar | |
| #else: blarg | |
| #for i, val in enumerate(vals): $i-$val | |
| Note that if you accidentally leave a colon at the end of one of these | |
| directives but nothing else follows it, aside from whitespace, the parser | |
| will treat it as a normal multi-line directive. | |
| The first leading space after the colon is discarded. Any additional | |
| spaces will be included in the output. | |
| Also note, if you use the short form versions of #if/#else/#elif you must | |
| it for all three. The following is not valid: | |
| #if cond: foo | |
| #elif cond2 | |
| bar | |
| #else: blarg | |
| - added support for $!silentModePlaceholders | |
| This is the same as quiet mode in Velocity: | |
| http://jakarta.apache.org/velocity/docs/user-guide.html#Quiet%20Reference%20Notation | |
| - added support for function/method @decorators. It also works with blocks. | |
| As in vanilla Python, the @decorator statement must be followed with a | |
| function/method definition (i.e. #def or #block). | |
| #from xxx import aDecorator | |
| ... | |
| ... | |
| #@aDecorator | |
| #def func | |
| foo | |
| #end def | |
| #@aDecorator | |
| #def singleLineShortFormfunc: foo | |
| #@aDecorator | |
| #block func2 | |
| bar | |
| #end block | |
| - added a new callback hook 'handlerForExtendsDirective' to the compiler settings. It | |
| can be used to customize the handling of #extends directives. The | |
| callback can dynamically add import statements or rewrite the baseclass' | |
| name if needed: | |
| baseClassName = handler(compiler, baseClassName) | |
| See the discussion on the mailing list on Jan 25th for more details. | |
| - changed the default filter to the one that doesn't try to encode Unicode | |
| It was 'EncodeUnicode' and is now 'RawOrEncodedUnicode'. | |
| - added optional support for parsing whitespace between the directive start | |
| token (#) and directive names, per Christophe Eymard's request. For the | |
| argument behind this see the mailing list archives for Jan 29th. This is | |
| off by default. You must turn it on using the compiler setting | |
| allowWhitespaceAfterDirectiveStartToken=True | |
| #for $something in $another | |
| # for $somethin2 in $another2 | |
| blahblah $something in $something2 | |
| # end for | |
| #end for | |
| - made the handling of Template.compile()'s preprocessors arg simpler and | |
| fixed a bug in it. | |
| - fixed attribute name bug in the .compile() method (it affected the feature | |
| that allows generated module files to be cached for better exception | |
| tracebacks) | |
| - refactored the #cache/CacheRegions code to support abitrary backend cache | |
| data stores. | |
| - added MemcachedCacheStore, which allows cache data to be stored in a | |
| memcached backend. See http://www.linuxjournal.com/article/7451 and | |
| http://www.danga.com/memcached/. This is only appropriate for systems | |
| running many Python server processes that need to share cached data to | |
| reduce memory requirements. Don't bother with this unless you actually | |
| need it. If you have a limited number of Python server processes it is | |
| much faster, simpler, and more secure to just cache in the memory of each | |
| process. | |
| KEEP MEMCACHED'S LIMITED SECURITY IN MIND!! It has no authentication or | |
| encryption and will introduce a gaping hole in your defenses unless you | |
| are careful. If you are caching sensitive data you should take measures | |
| to ensure that a) untrusted local system users cannot connect to memcached | |
| server, b) untrusted external servers cannot connect, and c) untrusted | |
| users on trusted external servers cannot connect. Case (a) can be dealt | |
| with via iptable's owner match module for one way to do this: "iptables -A | |
| ... -m owner ..." Cases (b) and (c) can be handled by tunnelling | |
| memcached network connections over stunnel and implementing stunnel | |
| authentication with mandatory peer/client certs. | |
| - some under-the-hood refactoring of the parser | |
| - made it possible to add custom directives, or customize the | |
| parsing/handling of existing ones, via the compiler settings | |
| 'directiveNamesAndParsers' and 'endDirectiveNamesAndHandlers' | |
| - added a compile-time macro facility to Cheetah. These macros are very | |
| similar to macros in Lisp: | |
| http://www.apl.jhu.edu/~hall/Lisp-Notes/Macros.html. | |
| As with Lisp macros, they take source code (Cheetah source) as input and | |
| return source code (again Cheetah source) as output. They are executed at | |
| compile-time, just like in Lisp and C. The resultant code | |
| gets executed at run-time. | |
| The new #defmacro directive allows users to create macros inside the | |
| source of their templates. Macros can also be provided via the compiler | |
| setting 'macroDirectives'. The 'macroDirectives' setting allows you to | |
| share common macros between templates. | |
| The syntax for the opening tag of #defmacro is the same as for #def and | |
| #block. It expects a macro name followed by an optional argument list in | |
| brackets. A `src` argument is automatically added to the beginning of | |
| every macro's argument list. The value of the `src` is the block of | |
| input source code that is provided during a macro call (see below). | |
| #defmacro <macroname>[(argspec)] | |
| <macrobody> | |
| #end defmacro | |
| All of Cheetah's syntax is available for use inside macros, but the | |
| placeholderStartToken is @ instead of $ and the | |
| directiveStartToken/EndToken is % instead of #. Any syntax using the | |
| standard $/# tokens will be treated as plain text and included in the output | |
| of the macro. | |
| Here are some examples: | |
| #defmacro addHeaderFooter | |
| header | |
| @src | |
| footer | |
| #end defmacro | |
| #defmacro addHeaderFooter(header='h', footer='f') | |
| @header | |
| @src | |
| @footer | |
| #end defmacro | |
| There is a single-line short form like for other directives: | |
| #defmacro addHeaderFooter: header @src footer | |
| #defmacro addHeaderFooter(header='h', footer='f'): @header @src @footer | |
| The syntax for calling a macro is similar to the simplest usage of the | |
| #call directive: | |
| #addHeaderFooter | |
| Source $code to wrap | |
| #end addHeaderFooter | |
| #addHeaderFooter: Source $code to wrap | |
| #addHeaderFooter header='header', footer='footer: Source $code to wrap | |
| In Elisp you write | |
| (defmacro inc (var) | |
| (list 'setq var (list '1+ var))) | |
| to define the macro `inc` and write | |
| (inc x) | |
| which expands to | |
| (setq x (1+ x)) | |
| In Cheetah you'd write | |
| #defmacro inc: #set @src +=1 | |
| #inc: $i | |
| which expands to | |
| #set $i += 1 | |
| print Template("""\ | |
| #defmacro inc: #set @src +=1 | |
| #set i = 1 | |
| #inc: $i | |
| $i""").strip()==2 | |
| - fixed some bugs related to advanced usage of Template.compile(). These | |
| were found via new unit tests. No one had actually run into them yet. | |
| - added the initial bits of an #i18n directive. It has the same semantics | |
| as | |
| #call self.handleI18n | |
| Some $var cheetah source | |
| #end call | |
| but has a simpler syntax: | |
| #i18n | |
| Some $var cheetah source | |
| #end i18n | |
| ## single-line short form: | |
| #i18n: Some $var cheetah source | |
| The method it calls, self.handleI18n, is just a stub at the moment, but it | |
| will soon be a wrapper around gettext. It currently has one required | |
| positional argument `message`. I anticipate supporting the following | |
| optional arguments: | |
| id = msgid in the translation catalog | |
| domain = translation domain | |
| source = source lang | |
| target = a specific target lang | |
| comment = a comment to the translation team | |
| plural = the plural form of the message | |
| n = a sized argument to distinguish between single and plural forms | |
| #i18n is executed at runtime, but it can also be used in conjunction with | |
| a Cheetah preprocessor or macro (see above) to support compile time | |
| translation of strings that don't have to deal with plural forms. | |
| - added Cheetah.Utils.htmlEncode and Cheetah.Utils.htmlDecode | |
| - more docstring text | |
| Unit tests: [TR] | |
| - extended the caching tests | |
| - added tests for the various calling styles of Template.compile() | |
| - added copies of all the SyntaxAndOutput tests that use a template | |
| baseclass other than `Template`. This ensures that all syntax & core | |
| features work with 2.0's support for arbitrary baseclasses. | |
| - added tests for all the new directives and the new single-line short forms | |
| 2.0rc2 (Jan 13th, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - fixed some python 2.4isms that slipped in. All the tests pass with Python | |
| 2.2 now | |
| - added lots more docstring content in the Template class | |
| - made multiline comments gobble whitespace like other directives, per JJ's | |
| request. The rather longwinded compiler setting | |
| gobbleWhitespaceAroundMultiLineComments can be used to go back to the old | |
| non-gobbling behaviour if needed. | |
| - added #capture directive to complement the #call directive. | |
| #call executes a region of Cheetah code and passes its output into a function call | |
| #capture executes a region of Cheetah code and assigns its output to a variable | |
| - extended the compile caching code in Template.compile so it works with the | |
| 'file' arg. | |
| - added cacheModuleFilesForTracebacks and cacheDirForModuleFiles args to | |
| Template.compile(). See the docstring for details. | |
| - misc internal refactoring in the parser | |
| - improved handling of keyword args in the __init__ method and fixed a | |
| potential clash between the namespaces and searchList args | |
| WWW: [TR] | |
| - added the source for the new Cheetah website layout/content | |
| 2.0rc1 (Jan 10, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - made it possible nest #filter directives | |
| - added lots more docstring content in the Template class | |
| - added Template.subclass() classmethod for quickly creating subclasses of | |
| existing Cheetah template classes. It takes the same args as the | |
| .compile() classmethod and returns a template that is a subclass of the | |
| template .subclass() is called from: | |
| T1 = Template.compile(' foo - $meth1 - bar\n#def meth1: this is T1.meth1') | |
| T2 = T1.subclass('#implements meth1\n this is T2.meth1') | |
| - added baseclass arg to Template.compile(). It simplifies the reuse of | |
| dynamically compiled templates: | |
| # example 1, quickly subclassing a normal Python class and using its | |
| # __init__ call signature: | |
| dictTemplate = Template.compile('hello $name from $caller', baseclass=dict) | |
| print dictTemplate(name='world', caller='me') | |
| # example 2, mixing a Cheetah method into a class definition: | |
| class Foo(dict): | |
| def meth1(self): | |
| return 'foo' | |
| def meth2(self): | |
| return 'bar' | |
| Foo = Template.compile('#implements meth3\nhello $name from $caller', | |
| baseclass=Foo) | |
| print Foo(name='world', caller='me') | |
| A side-benefit is the possibility to use the same Cheetah source with | |
| several baseclass, as the baseclass is orthogonal to the source code, | |
| unlike the #extends directive. | |
| - added 'namespaces' as an alias for 'searchList' in Template.__init__ | |
| - made it possible to pass in a single namespace to 'searchList', which will | |
| automatically be converted into a list. | |
| - fixed issue with buffering and use of #call when template is used as a | |
| webkit servlet | |
| - added Cheetah.Utils.htmlEncode and htmlDecode | |
| The command line tool (CheetahWrapper.py): | |
| - changed insertion order for the --env and --pickle options so they match the | |
| commandline UI of the compiled template modules themselves [TR] | |
| 2.0b5 (Jan 7, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - made Cheetah.Template a new-style class by inserting 'object' into its' | |
| inheritance tree. Templates can now use super(), properties and all the | |
| other goodies that come with new-style classes. | |
| - removed the WebInputMixin by placing its one method directly in the | |
| Template class. | |
| - removed the SettingsManager Mixin. It wasn't being used by anything | |
| anymore. | |
| - added a framework for caching the results of compilations in | |
| Template.compile(). This is on by default and protects against bad | |
| performance issues that are due to programmers misguidedly compiling | |
| templates inside tight loops. It also saves on memory usage. | |
| - misc attr name changes to avoid namespace pollution | |
| - more + improved docstrings | |
| - replaced the oldstyle dynamic compile hacks with a wrapper around | |
| Template.compile(). The old usage pattern Template(src) now benefits from | |
| most of the recent changes. | |
| Template(src).__class__ == Template.compile(src) | |
| - removed all the extra imports required by oldstyle dynamic compile hacks | |
| - converted the cheetah #include mechanism to newstyle compilation and made it | |
| more flexible | |
| - made the #include mechanism work with file objects in addition to file names | |
| - made the handling of args to Template.compile() more flexible. You can now | |
| provide defaults via class attributes. | |
| - made preprocessors for Template.compile() work with file arguments | |
| - added support for specifying a __metaclass__ on cheetah template classes | |
| - refactored both the class and instance initialization processes | |
| - improved the handling of __str__ in _assignRequiredMethodsToClass | |
| The command line tool (CheetahWrapper.py): [TR] | |
| - improved error output in CheetahWrapper | |
| - switched fill command over to new style compile usage | |
| Unit tests: [TR] | |
| - fixed format string bug in unittest_local_copy.py | |
| 2.0b4 (Jan 6, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - fixed up parsing of target lists in for loops. This was previously limited | |
| to fairly simple target lists. | |
| #for ($i, $j) in [('aa','bb'),('cc','dd')] | |
| $i.upper,$j.upper | |
| #end for" | |
| #for (i, j) in [('aa','bb'),('cc','dd')] | |
| $i.upper,$j.upper | |
| #end for" | |
| #for i,(j, k) in enumerate([('aa','bb'),('cc','dd')]) | |
| $j.upper,$k.upper | |
| #end for" | |
| - refactored the class initialization process | |
| - improved handling of target lists in #set directive. This was previously | |
| limited to fairly simple target lists. | |
| #set i,j = [1,2] ... #set $i,$j = [1,2] | |
| #set (i,j) = [1,2] ... #set ($i,$j) = [1,2] | |
| #set i, (j,k) = [1,(2,3)] ... #set $i, ($j,$k) = [1,(2,3)] | |
| - made it possible for the expressionFilter hooks to modify the code chunks | |
| they are fed. Also documented the hooks in a docstring. Thus the hooks | |
| can be used as preprocessors for expressions, 'restricted execution', or | |
| even enforcement of style guidelines. | |
| - removed cheetah junk from docstrings and placed it all in comments or | |
| __moduleVars__. Per JJ's suggestion. | |
| - made it possible to nest #cache directives to any level | |
| - made it possible to nest #call directives to any level | |
| Unit Tests [TR] | |
| - extended tests for #for directive | |
| - expanded tests for #set directive | |
| - expanded tests for #call directive | |
| - expanded tests for #cache directive | |
| - added basic tests for the new $placeholder string expressions: | |
| c'text $placeholder text' | |
| 2.0b3 (Jan 5, 2006) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: [TR] | |
| - added #yield statement | |
| - added ability to create nested scopes/functions via nested #def statements | |
| - added new #call directive and related #arg directive, per Ian Bicking's | |
| suggestion. | |
| - added new expression syntax c"text $placeholder text" | |
| for those basic function calling cases where you just need to pass in a | |
| small bit of cheetah output as an argument: | |
| c'a string with $placeholders', | |
| c'''a string with $placeholders''', | |
| c"a string with $placeholders", | |
| c"""a string with $placeholders""" | |
| - They can't contain #directives, but accept any valid $placeholder syntax | |
| except caching placeholders. Caching placeholders don't make any sense in | |
| this context. | |
| - They can be used *any* place where a python expression is expected. | |
| - They can be nested to any depth. | |
| $func(c'<li>$var1-$var2</li>') | |
| $func(c'<li>$var1-$var2</li>', doSomething=True) | |
| $func(content=c'<li>$var1-$var2</li>', doSomething=True) | |
| $func(lambda x,y: c'<li>$x-$y</li>') | |
| $func(callback=lambda x,y: c'<li>$x-$y</li>') | |
| $func(lambda x,y: c'<li>$x-$y-$varInSearchList</li>') | |
| $func(c'<li>$var1-$var2-$(var3*10)-$(94.3*58)</li>') | |
| $func(c'<li>$var1-$var2-$func2(c"a nested expr $var99")</li>') | |
| #if $cond then c'<li>$var1-$var2</li>' else c'<p>$var1-$var2</p>' | |
| #def foo(arg1=c'$var1<span class="foo">$var2</span>'): blah $arg1 blah | |
| $foo(c'$var1<i>$var2</i>') | |
| - added preprocessor hooks to Template.compile() | |
| can be used for partial completion or 'compile-time-caching' | |
| ... more details and examples coming. It's very useful, but takes a bit | |
| of explaining. | |
| - added '#set module varName = expr' for adding module globals. JJ's suggestion | |
| - improved generated docstring notes about cached vars | |
| - fixed silly bug related to """ in docstring comments and statements like | |
| this '#def foo: $str("""foo""")'. Reported by JJ. | |
| - changed the handling of single-line defs so that | |
| '#def xxx:<just whitespace>\n' will be treated as a multi-line #def. | |
| The same applies to #block. There's a compiler setting to turn this off | |
| if you really need empty single-line #def:'s. | |
| JJ reported that this was causing great confusion with beginners. | |
| - improved error message for unclosed directives, per Mike Orr's suggestion. | |
| - added optional support for passing the trans arg to methods via **KWS rather | |
| than trans=None. See the discussion on the mailing list Jan 4th (JJ's post) for | |
| details. The purpose is to avoid a positional argument clash that | |
| apparently is very confusing for beginners. | |
| Note that any existing client code that passing the trans arg in | |
| positionally rather than as a keyword will break as a result. WebKit | |
| does this with the .respond method so I've kept the old style there. | |
| You can also turn this new behaviour off by either manually including | |
| the trans arg in your method signature (see the example below) or by | |
| using the compiler setting 'useKWsDictArgForPassingTrans'=False. | |
| #def manualOverride(arg1, trans=None) | |
| foo $arg1 | |
| #end def | |
| ImportHooks: | |
| - made the ImportHook more robust against compilation errors during import [TR] | |
| Install scripts: [TR] | |
| - added optional support for pje's setuptools | |
| - added cheeseshop classifiers | |
| - removed out of date install instructions in __init__.py | |
| Servlet Base Class For Webkit: [TR] | |
| - disabled assignment of self.application (was a webware hack) | |
| Unit Tests: [TR] | |
| - unit tests for most of the new syntax elements | |
| - tidied up some old tests | |
| - misc refactoring | |
| 2.0b2 (Dec 30, 2005) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: | |
| - In previous versions of Cheetah tracebacks from exceptions that were raised | |
| inside dynamically compiled Cheetah templates were opaque because | |
| Python didn't have access to a python source file to use in the traceback: | |
| File "xxxx.py", line 192, in getTextiledContent | |
| content = str(template(searchList=searchList)) | |
| File "cheetah_yyyy.py", line 202, in __str__ | |
| File "cheetah_yyyy.py", line 187, in respond | |
| File "cheetah_yyyy.py", line 139, in writeBody | |
| ZeroDivisionError: integer division or modulo by zero | |
| It is now possible to keep the generated source code from the python | |
| classes returned by Template.compile() in a cache dir. Having these files | |
| around allows Python to include the actual source lines in tracebacks and | |
| makes them much easier to understand: | |
| File "/usr/local/unsnarl/lib/python/us/ui/views/WikiPageRenderer.py", line 192, in getTextiledContent | |
| content = str(template(searchList=searchList)) | |
| File "/tmp/CheetahCacheDir/cheetah_yyyy.py", line 202, in __str__ | |
| def __str__(self): return self.respond() | |
| File "/tmp/CheetahCacheDir/cheetah_yyyy.py", line 187, in respond | |
| self.writeBody(trans=trans) | |
| File "/tmp/CheetahCacheDir/cheetah_yyyy.py", line 139, in writeBody | |
| __v = 0/0 # $(0/0) | |
| ZeroDivisionError: integer division or modulo by zero | |
| This is turned off by default. To turn it on, do this: | |
| class NiceTracebackTemplate(Template): | |
| _CHEETAH_cacheModuleFilesForTracebacks = True | |
| _CHEETAH_cacheDirForModuleFiles = '/tmp/CheetahCacheDir' # change to a dirname | |
| templateClass = NiceTracebackTemplate.compile(src) | |
| # or | |
| templateClass = Template.compile(src, | |
| cacheModuleFilesForTracebacks=True, cacheDirForModuleFiles='/tmp/CheetahCacheDir') | |
| This only works with the new Template.compile(src) usage style! | |
| Note, Cheetah generated modules that are compiled on the command line have | |
| never been affected by this issue. [TR] | |
| - added an extra comment per $placeholder to generated python code so it is | |
| easier to grok. [TR] | |
| 2.0b1 (Dec 29, 2005) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Core Changes: | |
| - enabled use of any expression in ${placeholders}. See the examples I posted to | |
| the email list on Dec 12th. All use cases of the #echo directive can now | |
| be handled with ${placeholders}. This came from a suggestion by Mike | |
| Orr. [TR] | |
| - made it possible for templates to #extend (aka subclass) any arbitrary | |
| baseclass, including Python's new style classes. You must either compile | |
| your classes on the command line or use the new classmethod | |
| Template.compile() as described below. The old Template(src) interface | |
| still works, provided you don't try to use this new arbitrary baseclass | |
| stuff. See my messages to the email list for more details. [TR] | |
| - made it possible to create template classes dynamically, rather than just | |
| instances. See the new classmethod Template.compile(). See my messages | |
| to the email list for more details. [TR] | |
| klass = Template.compile(src) | |
| - made it easier to work with custom compiler settings, particularly from | |
| the command line tool. You can now define a subclass of Template which | |
| will compile your templates using custom compilerSettings, or even a | |
| custom compiler class, without requiring you to manually pass in your | |
| compilerSettings each time or define them in the template src itself via | |
| the #compiler directive. You can make the command line tool use your | |
| subclass by defining the environment variable CHEETAH_TEMPLATE_CLASS. It | |
| should be in the form 'package.module:class'. See my messages | |
| to the email list for more details. [TR] | |
| - made it possible to pass the searchList in as an argument to #def'ined | |
| methods. This makes all lookup that occur within the scope of that method | |
| use the provided searchList rather than self._searchList. This does not | |
| carry over to other methods called within the top method, unless they | |
| explicitly accept the searchList in their signature AND you pass it to | |
| them when calling them. This behaviour can be turned off with the | |
| corresponding compilerSetting 'allowSearchListAsMethArg' [TR] | |
| - added hooks for filtering / restricting dangerous stuff in cheetah source | |
| code at compile time. These hooks can be used to enable Cheetah template | |
| authoring by untrusted users. See my messages to the email list for more | |
| details. Note, it filters expressions at parse/compile time, unlike Python's | |
| old rexec module which restricted the Python environment at runtime. [TR] | |
| # Here are the relevant compiler settings: | |
| # use lower case keys here!! | |
| 'disabledDirectives':[], # list of directive keys, without the start token | |
| 'enabledDirectives':[], # list of directive keys, without the start token | |
| 'disabledDirectiveHooks':[], # callable(parser, directiveKey), | |
| # called when a disabled directive is found, prior to raising an exception | |
| 'preparseDirectiveHooks':[], # callable(parser, directiveKey) | |
| 'postparseDirectiveHooks':[], # callable(parser, directiveKey) | |
| 'preparsePlaceholderHooks':[], # callable(parser) | |
| 'postparsePlaceholderHooks':[], # callable(parser) | |
| 'expressionFilterHooks':[], | |
| # callable(parser, expr, exprType, rawExpr=None, startPos=None) | |
| # exprType is the name of the directive, 'psp', or 'placeholder'. | |
| #all lowercase | |
| - added support for a short EOLSlurpToken to supplement the #slurp | |
| directive. It's currently re.compile('#\s*\n') (i.e # followed by | |
| arbitrary whitespace and a new line), but this is not set in stone. One | |
| other suggestion was the backslash char, but I believe Python's own | |
| interpretation of backslashes will lead to confusion. The compiler | |
| setting 'EOLSlurpToken' controls this. You can turn it off completely by | |
| setting 'EOLSlurpToken' to None. See the email list for more details. [TR] | |
| - added '_CHEETAH_' prefix to all instance attribute names in compiled | |
| templates. This is related to the arbitrary baseclass change. [TR] | |
| - shifted instance attribute setup to _initCheetahAttributes() method. This | |
| is related to the arbitrary baseclass change. [TR] | |
| - made it possible to use full expressions in the #extends directive, rather | |
| than just dotted names. This allows you to do things like this: | |
| #from xx.TemplateRepository import getTemplateClass | |
| #extends getTemplateClass('someName') | |
| I don't expect this to be used much. I needed it for a wiki system in | |
| which the baseclasses for the templates are dynamically compiled at run | |
| time and are not available via simple imports. [TR] | |
| - added compiler setting autoImportForExtendDirective=True, so this existing | |
| default behaviour can be turned off when needed. [TR] | |
| - fixed a bug in the parsing of single-line #def's and #block's when they | |
| are enclosed within #if ... #end if. Reported by Marcin Gajda [TR] | |
| - tweak to remove needless write('') calls in generated code [TR] | |
| The command line tool (CheetahWrapper.py): | |
| - added code to cleanup trailing slashes on path arguments (code originally | |
| from Mike Orr) [TR] | |
| - turned on the ImportHooks by default for the 'cheetah fill' command. See the | |
| discussion on the email list [TR] | |
| ImportHooks: | |
| - fixed a name error bug in the ImportHooks [TR] | |
| 1.0 (Dec 4, 2005) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| Version bump from 1.0rc3 | |
| 1.0rc3 (Nov 30, 2005) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| - added useSearchList compiler setting [TR] | |
| This defaults to True, but if false, the compiler assumes the first | |
| portion of a $variable (before the first dot) is a global, builtin, or local | |
| var that doesn't need looking up in the searchlist. NameMapper's unified | |
| dotted notation will still be used on the rest of the lookup (provide the | |
| setting useNameMapper==True): | |
| $aLocalDictVar.aKey.somethingElse | |
| 1.0rc2 (Nov 19, 2005) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| See my email to the cheetahtemplate-discuss list on Sat. Nov. 12th for more | |
| details on these changes: | |
| - faster list-based buffering in DummyTrans, rather than StringIO (my | |
| benchmarks showed it to be significantly faster. collections.deque wasn't | |
| any faster than a simple list.) [TR] | |
| - new CompilerSettings to tweak generated code: [TR] | |
| * alwaysFilterNone: filter out None immediately, before the filter is called | |
| * useFilters: allows you to turn them off completely and default to str() | |
| * includeRawExprInFilterArgs: allows you to disable this behaviour | |
| * autoAssignDummyTransactionToSelf: off by default | |
| - and automatic $trans finding without having to pass it as an arg to methods | |
| based Jonathan Mark's suggestion. If the template's self.transaction | |
| attribute has been set, each method of the template will use it when | |
| called. [TR] | |
| - applied Chris Murphy's patch to fix a bug in the #shBang directive. [TR] | |
| 1.0rc1 (Nov 2, 2005) | |
| !!!THIS RELEASE REQUIRES RECOMPILATION OF ALL COMPILED CHEETAH TEMPLATES!!! | |
| - added the compiler option "useStackFrames" for optionally turning off the | |
| default lookup method which doesn't work with psyco because it uses stack | |
| frame introspection. When useStackFrames=False, an alternative psyco | |
| friendly lookup method is used. [TR] | |
| - fixed treatment of None in several filters, bug reported by Daniele Varrazzo | |
| [TR] | |
| 0.9.18 (Aug 22, 2005) | |
| - version bump from 0.9.18rc1 [TR] | |
| 0.9.18rc1 (Aug 15, 2005) | |
| - applied Philippe Normand's patch for extended cache support [TR] | |
| - added filter RawOrEncodedUnicode to fix a unicode issue that was discussed | |
| on the email list on Aug. 9th 2005 [TR] | |
| 0.9.17 (May 30, 2005) | |
| - this is just 0.9.17rc1 repackaged [TR] | |
| 0.9.17-rc1 (May 12, 2005) | |
| This simple bug fix release resolves some issues introduced by | |
| under-the-hood changes in release 0.9.16a1. | |
| - removed the use of temp files for handling imports with dynamic | |
| compilation. This removes a whole slew of issues, including a temp file | |
| security issue reported on the email list by Brian Bird. [TR] | |
| - fixed bug with handling of the searchList with dynamic inheritance, as | |
| reported by Brian Bird. [TR] | |
| 0.9.16 (Mar 27, 2005) | |
| - this is just 0.9.16b1 repackaged [TR] | |
| 0.9.16b1 (Feb 28, 2005) | |
| - fixed attr error in Parser.eatEncoding [TR] | |
| - some tweaks to Compiler.py to prevent errors with dynamically compiled | |
| templates [TR] | |
| - added tests for the #encoding directive [TR] | |
| 0.9.16a1 (Jan 6, 2005) | |
| - fixed a unicode bug in Compiler.py [TR] | |
| - added new EncodeUnicode filter that Rene Pijlman contributed (I optimized it | |
| slightly) and made it the default filter for all templates. [TR] | |
| - added test cases for handling unicode with the default filter [TR] | |
| - fixed a caching bug related to the #include directive. Thanks to Michael | |
| Engelhart for reporting it.[TR] | |
| - added the new #encoding directive to handle PEP 263 | |
| http://www.python.org/doc/2.3/whatsnew/section-encodings.html [TR] | |
| - Tools.CGITemplate: fix bug in comment.[MO] | |
| - Abort with a helpful error message if user runs 'cheetah test' in a | |
| directory without write permission. (Kludge in CheetahWrapper.py; we | |
| should probably move the temp files under the system tmp directory.) [MO] | |
| - added better string type checking for args in Template.py, as suggested by | |
| Terrel Shumway [TR] | |
| - minor tweak to the class attribute lookup style in the Compiler.py | |
| __getattr__ methods [TR] | |
| - Fix printf format bug in "cheetah c --debug", found by Terry MacDonald. [MO] | |
| - Disabled NameMapperDict test (in SyntaxAndOutput.py) because the | |
| namemappers still have the dict-method bug. (Reminder: don't use | |
| placehold names like $update that match dict method names.) [MO] | |
| - #repeat now uses a local variable of the form __i$num which permits | |
| nesting [JJ] | |
| - implemented a modified version of Bob and JJ's patch for better parser | |
| warnings about mismatched directives and #end directives [TR] | |
| - lots of little cleanups and refactoring [TR] | |
| - refactored the class tree for the Parser and Compiler. They are now | |
| completely separate trees and the communication between them is one-way: | |
| explicit commands from the parser to the compiler. The parser now handles | |
| all parsing tasks by itself and delegates *all* code generation to the | |
| compiler. This last bit was my original intention, but things got a bit | |
| mixed up over time. Also, all SettingsManager stuff for handling | |
| compiler/parser settings is now handled by ModuleCompiler. This should make | |
| it easier to grok, maintain, and extend both. [TR] | |
| - improved the parsing of singe-line #if directives. [TR] | |
| - removed the old webware example of the cheetah site, as it was way out of | |
| date and was more confusing than helpful. [TR] | |
| - added two new lookup functions to NameMapper (valueFromFrame and | |
| valueFromFrameOrSearchList) and synchronized the behaviour of the C and | |
| Python versions of all functions. [TR] | |
| - improved the exception handling of both versions of NameMapper. NotFound | |
| exceptions now include more detail about what wasn't found. [TR] | |
| - made NameMapper's searchList lookup functions work with any iterable | |
| type/class rather than just with lists. [TR] | |
| - added and updated a variety of test cases. [TR] | |
| - checked in a patch to CheetahWrapper that improves handling of the odir | |
| option when the path is absolute. I can't remember where the patch came | |
| from. [TR] | |
| - checked in a patch to Template.py for better include/import support under | |
| Jython. Again, I've forgotten who contributed it. [TR] | |
| - updated various bits of the user guide. [TR] | |
| - made the Cheetah NameMapper calls in the generated code use the new function | |
| valueFromFrameOrSearchList rather than passing locals, searchList, globals, | |
| and __builtins__ into valueFromSearchList. This is faster, less bug prone | |
| and simpler to read/grok. I also removed all tracking of local | |
| variable names by the compiler. [TR] | |
| - other misc. refactorings [TR] | |
| 0.9.15 (Mar 25, 2003) | |
| - a minor tweak to the cleanup actions of one of the test cases [TR] | |
| 0.9.15rc2 (Mar 23, 2003) | |
| - Fixed a python version dependency bug related to Compiler.py's use of | |
| isinstance() [TR] | |
| 0.9.15rc1 (Mar 21, 2003) | |
| This is just 0.9.15b1 renamed. | |
| 0.9.15b1 (Mar 17, 2003) | |
| - The Cheetah version of unittest now prints a blank line after each | |
| traceback to separate them. (MO) | |
| - .webInput() now saves the cgi.FieldStorage() instance in a global | |
| variable rather than recreating it each call. That should allow the | |
| method to be called multiple times with POST variables outside Webware. | |
| (MO) | |
| - CheetahWrapper: no verbose output on stdout with --stdout/-p. (MO) | |
| - "#indent" is now undocumented. The existing code remains intact for now. | |
| See the TODO file for our future plans. (MO) | |
| - Apply 2 unicode-support patches from Rodrigo B. de Oliveira (rodrigobamboo) | |
| that affected the Template and ModuleCompiler classes. (TR) | |
| - Template: compiling a template from a string now works if the current | |
| directory doesn't have write permission. (MO) | |
| - remove temporary .pyo files in addition to .py and .pyc files (TR) | |
| 0.9.15a3 (Nov 10, 2002) | |
| - corrected a dictionary bug in the Python version of NameMapper (TR) | |
| - Rewrote the "cheetah" command (CheetahWrapper.py) again and added test | |
| cases. New options --flat and --nobackup; --stdout is now a synonym for | |
| -p. See the "cheetah compile" section in the Users' Guide for details. | |
| Deleted Utils.dualglob: merged into CheetahWrapper. (MO) | |
| - .addToSearchList() and .prependToSearchList() are gone. Instead of | |
| adding containers to the searchList after instantiation, pass all the | |
| containers you need to the constuctor, keep another reference somewhere | |
| to the containers, and modify the containers directly. Generic libraries | |
| that want to add a new kind of information to the searchList (e.g., | |
| web variables) should do "self.searchList().insert(0, myContainer)". (MO) | |
| 0.9.15a2 (Nov 4th, 2002) | |
| - Filters now have access to the name of the placeholder they're filtering. | |
| In the .filter() method, kw['rawExpr'] gives the entire placeholder name | |
| including subscripts and arguments, exactly as it appears in the template | |
| definition. (TR) | |
| - Fix three bugs in "cheetah compile -R": (1) the generated class name | |
| contained the subdirectory, (2) the destination path did not contain the | |
| subdirectory, (3) Cheetah failed to create the destination subdirectory | |
| if missing. All subdirectories created have an "__init__.py" file. | |
| "cheetah fill -R" does the same thing but does not create | |
| "__init__.py". (MO) NOTE: this is still buggy! | |
| - New directory "attic" in source contains code that has been abandoned | |
| for now but may come in handy someday. (MO) | |
| - Tests.CheetahWrapper: test suite for "cheetah compile" and | |
| "cheetah fill". If the module is run from the command line, the | |
| option "--list PATH/CheetahWrapper.py", lists all scenarios that would be | |
| tested; the argument is the path to the test module itself. (MO) | |
| - made Cheetah.NameMapper.NotFound subclass the builtin LookupError (TR) | |
| - added an initial implementation of single line #if directives | |
| #if <condition> then <true> else <false> | |
| The parsing is fairly rudimentary for now and assumes that the keywords | |
| 'then' and 'else' won't appear any inside a string in this directive (TR) | |
| 0.9.15a1 (Oct 6th, 2002) | |
| - fixed a package-relative import bug in ImportHooks.py (TR) | |
| - set 'monitorSrcFile' to false as it was causing problems with the | |
| ImportHooks ... This might be temporary as the problem needs more thought | |
| (TR) | |
| - fixed meta tag http_equiv to be http-equiv in SkeletonPage (TR) | |
| - $webInput (Utils.WebInputMixin) 'source' arg can be either case. (MO) | |
| - fixed code-gen bug in MethodCompiler.commitStrConst that was leading to | |
| triple single quotes followed immediately by another single quote if the | |
| template def contained a '$placeholder' surrounded in single quotes and | |
| multiple \n newlines ... plus added new test case.(TR) | |
| - undocumented the '#settings' directive. The directive itself will be | |
| removed soon. (MO) | |
| - Utils.optik: Optik 1.3 package by Gregory P Ward, for parsing | |
| command-line options in 'cheetah' comamnd. Copied unchanged into | |
| Cheetah except added "Cheetah.Utils.optik." prefix to intra-package | |
| imports. Optik's copyright and license is in an appendix in the | |
| Cheetah Users' Guide. (MO) | |
| - rewrite of the "cheetah" and "cheetah-compile" commands. | |
| The command-line options have changed! Removed CheetahCompile module | |
| removed and its test suite too; CheetahWrapper now takes its place. (MO) | |
| - Utils.dualglob: new module to recursively generate source+destination | |
| filenames from command-line filespecs. (MO) | |
| - The command-line options of .py template modules have also changed | |
| to conform with the "cheetah" command. Also a --pickle bug was | |
| fixed. (MO) | |
| - Utils.WebMixin: made a string type comparision backward compatible. | |
| This was why the Cheetah test suite was failing on Python < 2.2! (MO) | |
| - SettingsManager._createConfigFile(): bugfix in default argument. (MO) | |
| - $hasVar('varName') is an alias for $varExists('varName'). (MO) | |
| - $_fileDirName and $_filePath are now None rather than missing if | |
| the template definition did not come from a named file. (MO) | |
| - applied patch on SourceForge for "%" in default arguments of a block (TR) | |
| - removed the _underscored attribute lookup step from NameMapper NOTE THIS | |
| MIGHT BREAK EXISTING TEMPLATES (TR) | |
| - Install Cheetah into site-packages/Cheetah/ rather than | |
| site-packages/Webware/Cheetah/. Added code to automatically remove the old | |
| dir.(TR) | |
| - fixed the variable name resolution order bug in $placeholders. The new | |
| implementation uses | |
| valueFromSearchList([locals()] + searchList + [globals(), __builtin__], | |
| rest of the args) for all lookups. (TR) | |
| - removed the #settings directive (TR) | |
| - added the #del directive, for using Python's del statement (TR) | |
| - I think I've fixed the problem with the searchList arg being discarded when a | |
| template is generated from a .tmpl file that #extends another template. This | |
| bug was reported by Edmund on Aug 30th | |
| (subject: "Bug? Was: Really basic searchList question") (TR) | |
| 0.9.14 (July 14, 2002) | |
| - Precompiled template Templates/SkeletonPage.py added to CVS. This file is | |
| needed for Cheetah's regression tests. (MO) | |
| - removed automatic recompilation of .py template in memory if the | |
| .tmpl file has changed. (TR) | |
| 0.9.14b1 (June 30, 2002) | |
| - moved the Users' Guide and the Developers' Guide into a separate CVS module, | |
| 'CheetahDocs', so they can be distributed separately from the source distro | |
| (TR,MO) | |
| - added TypeType to the types that NameMapper won't do autocalling on (TR) | |
| - in Template.py moved the global LegalKWs to Template._legalKWs (TR) | |
| - made #set work with RVALUES that are missing the recommended $ (TR) | |
| - added some new test cases for the #set directive (TR) | |
| - fixed bug in the output of the #unless directive that Mike found (TR) | |
| - added some module constants to clear up a missing name bug that Mike found | |
| in cases where you use **KW in a Cheetah method definition (TR) | |
| - fixed a bug in Parser.py:_LowLevelSemanticsParser.getExpression() that was | |
| related to the default enclosures=[] argument. This arg was unintentionally | |
| being shared between calls and thus leading to parsing errors as reported by | |
| Greg Czajkowski (TR) | |
| - Filter: fixed an '== None' expression (should be 'is None'). (MO) | |
| - TemplateMisc: new base class for Template. This is for optional | |
| convenience methods that don't require Webware. (MO) | |
| - User's Guide: new sections "Non-Webware HTML Output" and "Non-HTML | |
| Output". (MO) | |
| - Expanded $webInput() -- renamed from $cgiImport() -- to work both with | |
| Webware input and CGI scripts. Handles GET/POST/cookie/session vars under | |
| Webware, and GET/POST under CGI. Defined in Cheetah.Utils.WebInputMixin, | |
| now inherited by Template directly. (MO) | |
| - Tools.CGITemplate has methods to output CGI headers: .isCgi, .cgiHeaders | |
| and .cgiHeadersHook in TemplateMisc. (MO) | |
| - New #indent directive allows you to indent block constructs in the | |
| template definition without having that indentation in the output, and | |
| allows you to set the output indentation per line independent of the | |
| indentation in the template definition. This version uses Robert | |
| Kuzelj's #indent syntax exactly. In the next few days, | |
| Cheetah.Utils.Indenter will be refactored and | |
| *** THE #INDENT SYNTAX WILL CHANGE! *** (MO) | |
| - added the #return directive as requested by Robert Kulezj (TR) | |
| - added some test cases for the #return directive (TR) | |
| - removed buggy import statement that had been left in Servlet.py after the | |
| CGIInputMixin changes (TR) | |
| 0.9.13 (May 8, 2002) | |
| - changed Cheetah.Servlet.isRunningFromWebKit to isWebwareInstalled (TR) | |
| - fixed parsing bug that would exit an expression if the directiveEndToken was a | |
| valid Python token and was found inside the directive. (TR) | |
| E.g.: | |
| #compiler-settings | |
| directiveStartToken = . | |
| directiveEndToken = : | |
| commentStartToken = # | |
| #end compiler-settings | |
| .for a in [1,2,3,4][2:3]: | |
| blag | |
| .end for | |
| - fixed #include bug that was resulting in non-unique includeIDs (TR) | |
| 0.9.13b2 (May 3, 2002) | |
| - fixed the bug in Cheetah.Servlet.Servlet.serverSidePath that Jeff Johnson | |
| found. (TR) | |
| - changed the attribute Cheetah.Servlet.ServletisRunningFromWebKit to | |
| isControlledByWebKit and set the default to False unless the .awake method | |
| is called. This makes a clear distinction between templates that are being | |
| used with WebKit via the inheritance approach and the containment approach | |
| (TR) | |
| 0.9.13b1 (May 1, 2002) | |
| - Was going to import cStringIO instead of StringIO, but it made the | |
| DummyTransaction.py unittest fail so I undid it. Cheetah aims to provide | |
| Unicode support, which cStringIO does not provide. (TR/MO) | |
| - Utils.Misc.CheckKeywords(): prevent misspelled keyword arguments, | |
| used by Template constructor. (MO) | |
| - removed support for multiple inheritance (TR) | |
| - added some bounds-checking code to _namemapper.c's getNameChunks function | |
| (TR) | |
| - changed the exceptions in _namemapper.c from the old string exceptions | |
| to proper exception objects (TR) | |
| - first portion of Developers' Guide written (MO) | |
| - implemented the extended #extends directive, which does automatic importing | |
| (MO,TR) | |
| - added some new testcases for the extended #extends directive (TR) | |
| - lots of work on the Users' Guide (MO) | |
| - implemented and tested an import hook for .tmpl files (TR): | |
| import MyTemplate # will compile and import MyTemplate.tmpl | |
| - made my True/False declarations friendly with Python 2.2.1, which already | |
| includes True/False as builtins (TR) | |
| - implemented the #compiler directive that Edmund Lian suggested (TR) | |
| e.g.: | |
| #compiler commentStartToken = '//' | |
| // a comment | |
| #compiler reset | |
| // no longer a comment | |
| - fixed the bug that Edmund Lian found in .addSet() when useNameMapper = 0 | |
| (TR) | |
| - fixed bug in comment creation using lineCol that Mike found (TR) | |
| 0.9.12 (April 3, 2002) | |
| - no code changes from beta 2 | |
| - more work on the docs (MO) | |
| 0.9.12b2 (Mar 28, 2002) | |
| - fixed Win32 path bug in Template._makeDummyPackageForDir() (TR) | |
| - prettied up the format of the debug comments in the Cheetah generated | |
| Python code (TR) | |
| - fixed the non-unique key error in Template._includeCheetahSource (TR) | |
| - fixed the module import bug in 'cheetah compile -w' (TR) | |
| 0.9.12b1 (Mar 24, 2002) | |
| - $request().field(args) now works, identical to $request.field(args) | |
| to implement this, the request object is now self.request() instead of | |
| self.request. This provides compatibility with Webware's servlet API. | |
| (self.session already was an accessor method). New read-only attribute | |
| self.isRunningFromWebKit is boolean. All changes are in Servlet.py. (MO) | |
| - fixed nested-NotFound bug in _namemapper.c's valueFromSearchList (TR) | |
| - 'cheetah' wrapper script has abbreviation -c for the 'compile' command, | |
| -t for 'test', and an ASCII-art cheetah face in the help message. (MO) | |
| - CheetahCompile.py: fixed to recognize --help option and to show --help/-h | |
| in help message. (MO) | |
| - CheetahCompile.py: | |
| changed the order of the VERBOSE mode printouts, as per Mike's request (TR) | |
| - Template.py: | |
| fixed the #include'd template searchList sharing problem, as reported by | |
| Johannes (TR) | |
| - corrected namemapper translation bug in | |
| Compiler.GenUtils.genNameMapperVar() (TR) | |
| - Utils.Misc.UseOrRaise(): convenience function to return a | |
| value, or raise it if it's a subclass of Exception. (MO) | |
| - Utils.CGIImportMixin replaces Tools.WebwareMixin. Servlet now | |
| subclasses it. This adds the .cgiImport() method to all servlets, allowing | |
| sophisticated retrieval of form fields, cookies or session variables from | |
| one line of Cheetah or Python code. See module docstring. (MO) | |
| - lots of updates to the docs (MO) | |
| 0.9.11 (Mar 07, 2002) | |
| - fixed a careless bug in cheetah-compile (TR) | |
| - implemented the new 'cheetah' wrapper script (TR) | |
| - refactored the local copy of unittest a bit (TR) | |
| 0.9.10 (Mar 06, 2002): Primarily a bug fix release | |
| - fixed bug in srcfile-mtime monitoring / update code (TR) | |
| - fixed the parsing of single-line #defs and #blocks so they can have | |
| arguments (TR) | |
| - added test cases for single-line #defs and #blocks with args (TR) | |
| - fixed a silly typo bug in Parser.py where a comma was left at the end of | |
| regex definition, make it a tuple rather than a regex | |
| - fixed the directive matching bug that Jeff Johnson reported. It was | |
| causing #else# to not match, while #else # was matching. + added a test | |
| for it.(TR) | |
| - fixed bug in a regex that was preventing bare $'s followed by whitespace | |
| and then valid varname chars from parsing as just $ instead of as a | |
| placeholder (TR) | |
| - added some code to break reference cycles after the compilation is | |
| complete. This helps prevent memory leaks when a process in creating then | |
| discarding lots of Templates. You also need to manually call | |
| "template.shutdown()" to clear the remaining reference cycles. | |
| (TR) | |
| - fixed string formating bug in the autogenerated docstring code (TR) | |
| - added better error message for the #attr directive (TR) | |
| - removed some residual code that was causing a bug with cheetahvars that | |
| started with the name of one of the imported modules, such as 'time'. (TR) | |
| 0.9.9 (Dec 14, 2001) | |
| - implemented one-line #def's and #block's (TR) | |
| #def aTest: This is a $adj test ---- READ THE MANUAL FOR MORE INFO. | |
| NOTE: leading and trailing whitespace is stripped. These should only be | |
| used on lines by themselves as it reads to the end of the line. | |
| - made cheetah-compile accept input on standard input (TR) | |
| - made sure that #def and #block work with $'s on the method names (TR) | |
| 0.9.9b1 (Dec 6, 2001) | |
| - template constructor arg 'outputFilter' now 'filter', for consistency | |
| with #filter (MO) | |
| - template constructor raises TypeError if bad arguments (MO) | |
| - Cheetah.Utils.VerifyType new module containing functions for verifying the | |
| type of an argument (MO) | |
| - Cheetah.Utils: new package for non-Cheetah-specific modules needed by | |
| Cheetah (MO) | |
| - Cheetah.Filters: new filter WebSafe, several bugfixes (MO) | |
| - more work on the Users' Guide (MO) | |
| - fixed bug with adding Python's __builtins__ to the local vars list (TR) | |
| - fixed bug with #echo (TR) | |
| - fixed bug that was preventing ${a, $b=1234} from working like ${a, b=1234} (TR) | |
| - fixed some bugs in Template.varExists and Template.getVar() | |
| (TR - thanks to MH for spotting them) | |
| - made it possible to use filenames like 'spam-eggs.txt' that have invalid | |
| characters for module names with Template(): Template(file='spam-eggs.txt') | |
| (TR/MH) | |
| - refactored 'cheetah-compile' a little (TR) | |
| - Cheetah.Filters.Strip: new filter to strip leading/trailing whitespace | |
| but preserve newlines. Suitable for #filter directive or (possible) | |
| future #sed directive. (MO) | |
| - Cheetah.Filters.StripSqueeze: new filter to canonicalize all whitespace | |
| chunks to ' '. Also removes all newlines (joining multi-line input into | |
| one long line), and leading/trailing whitespace from the final result. (MO) | |
| - Filters can now be used standalone for debugging or for use outside | |
| Cheetah. This works transparently; details are in Filters.py docstring. | |
| (MO) | |
| - Cheetah.Tools.MondoReport: new module for dividing a long list into | |
| "pages", and for calculating statistics useful in reports. (MO) | |
| - refactored Cheetah.Servlet.Servlet.Awake a little (TR) | |
| - fixed an output bug in the #block generated code that turned up when you | |
| tried to override a block method from Python rather than Cheetah. (TR) | |
| - started preparing to shift some of the 'shared' utility classes, such as | |
| SettingsManager, to the Webware core. Cheetah 1.0 will probably require | |
| Webware to be installed so it can access those shared classes. (TR) | |
| - extended the template module command line interface(TR/MO) | |
| 0.9.9a6 (Nov 6, 2001) | |
| - fixed bug with quotations in longer constant string chunks (TR) | |
| - fixed another bug in the cheetah-compile script (TR) | |
| - fixed a bug in the file-update monitoring code that was resulting in | |
| infinite loops when used with Template sub-classes (TR) | |
| - extended the #filter framework according to Mike's suggestions (TR) | |
| - added test modules for cheetah-compile and the file-update monitoring code (TR) | |
| - extended the capabilities of cheetah-compile ... (IB) | |
| - updated the docs (MO) | |
| 0.9.9a5 (October 31, 2001) | |
| - fixed a bug I created yesterday (TR) | |
| 0.9.9a4 (October 30, 2001) | |
| - added #repeat (TR implementing Chuck's suggestion) | |
| - added #unless (TR implementing Mike's suggestion) | |
| - updates to the Users' Guide (MO) | |
| - fixed a small bug in the cheetah-compile script, as reported by Ian on the | |
| list (TR) | |
| 0.9.9a3 (October 12, 2001) | |
| - more in the Users Guide (TR) | |
| - renamed #attribute as #attr (TR) | |
| - renamed #call as #silent (TR) | |
| - added #echo directive (TR) | |
| 0.9.9a2 (October 11, 2001) | |
| - updated the example site and the SkeletonPage framework (TR) | |
| - fixed some small bugs (TR) | |
| - corrected some typos in the docs (TR + MO) | |
| - added Ian's sitehiearchy class to Cheetah.Tools (TR + IB) | |
| 0.9.9a1 (October 9, 2001) [many changes and bug-fixes] | |
| - a complete reimplementation of Cheetah's core (the parser and compiler | |
| classes) (TR + IB) | |
| - implemented the #def, #implements, #import, and #from directives | |
| + removed #redefine and #macros | |
| + renamed #extend as #extends (TR + IB) | |
| - replaced #data with #settings, see the docs (TR) | |
| - restructured and updated the docs (TR + MO + IB) | |
| - reimplemented the cheetah-compile script, without the -g option that Ian | |
| had added (TR) | |
| - changed the signature of Template.__init__. See the docs. (TR) | |
| - made #set distinguish between local and global vars. See the docs. (TR) | |
| - added hundreds of new test cases (TR) | |
| - added the #breakpoint and #compiler-settings directives (TR) | |
| - started restructuring the SkeletonPage framework [not complete yet] (TR) | |
| - started restructuring the example sites [not complete yet] (TR) | |
| 0.9.8 (October 9, 2001) | |
| - added a few new language constructs (aka 'directives') to Cheetah (TR) | |
| #while ... #end while | |
| #try ... #except ... #else ... #finally ... #end try | |
| - fixed a bug in the handling of local vars in #for loops that was preventing | |
| callable local vars from being handled properly. See Chuck's post of Sept | |
| 10. (TR) | |
| - fixed a pointer bug in the C version of NameMapper.valueFromSearchList() | |
| that was yielding undefined values for the NotFound exception when it was | |
| raised (TR) | |
| - prefaced all internal args to Template() with underscores (TR) | |
| - fixed the problem with parsing triple quoted strings in arg lists (TR) | |
| - updated the docs (TR) | |
| 0.9.8a4 (September 7, 2001) | |
| - Added -g (appendGen function argument), which compiles x.tmpl to xGen.py, | |
| with x.py being for non-generated Python code. Also changed option handling | |
| a little and added a comment to the top of compiled files. (IB + MO) | |
| - finalized the #include syntax after a lengthy discussion on the list | |
| This is different from in 0.9.8a3 (TR) | |
| #include <ARGS> <EXPR> | |
| ... uses the value of EXPR as the path of the file to include. | |
| #include <ARGS> source = <EXPR> | |
| ... includes the value of the EXPR | |
| where <ARGS> is 'raw' or '' | |
| - re-implemented the output mechanism to use streaming via Webware's | |
| Transaction and Response objects when available and fake it with the | |
| DummyTransaction DummyResponse classes when the Webware Transaction is not | |
| avialable. This behaviour is roughly the same as in Webware's PSP. Will | |
| implement output buffering PHP-style later if there is any demand. (TR) | |
| - made #include a run-time directive rather than compile-time. This is | |
| slower, but the semantics are better. (TR) | |
| - various small optimizations to the generated code (TR) | |
| - updated the docs (TR) | |
| 0.9.8a3 (August 22, 2001) [includes changes for 0.9.8a1 and 0.9.8a2] | |
| - Added package ./src/Tools/ for contributed classes/functions/packages not | |
| necessary to run Cheetah. The first such class is RecursiveNull.py by Ian | |
| Bicking. Added package Cheetah.Tools to list in ./setup.py . (MO) | |
| - Template.__init__ keyword arg 'searchList': no longer has to be a tuple. It | |
| may be a list or any type that that Python's 'tuple' function accepts. (MO) | |
| - Template.__init__ new keyword arg 'file': this may be a filename or file | |
| object to read the Template Definition from. If you use this, you must not | |
| pass a Template Definition string also. New instance variables | |
| ._fileName and ._fileMtime are set if a filename was passed; otherwise they | |
| are None. (MO) | |
| - CodeGenerator new function 'varNotFound_KeyError': raises KeyError if a | |
| placeholder name is missing when filling the template. Disabled by default. | |
| (MO) NB - this change has been superceeded by 'errorCheckers' | |
| - Template.getUnknowns (new method): returns a list of Placeholder Names | |
| missing in the Search List. (MO) - this change has been superceeded by | |
| 'errorCheckers' | |
| - made changes to Template.py, CodeGenerator.py, PlaceholderProcessor.py, | |
| and TagProcessor.py to enable customization of the placeholderStartToken so | |
| it can be set to any character sequence, rather than just the default '$'. | |
| This is configurable by the Template setting 'placeholderStartToken' (TR) | |
| - fixed a small bug in PlaceholderProcessor.processTag() that prevented | |
| static caching (i.e. $*) of a value containing ''' style quotes | |
| - added #break and #continue (TR) | |
| - fixed the relative path problem with #include when using Cheetah with WebKit | |
| (TR) | |
| - implemented the #stop directive (TR) | |
| - fixed a bug in the macro processing that prevented macros defined inside | |
| #includes from being visible at the top level (TR) | |
| - fixed a bug in the handling of the setting 'useAutocalling' (TR) | |
| - fixed some bugs in the handling of macros (TR) | |
| - completed the transition to nested template #includes (TR) | |
| - added direct #includes (TR) | |
| - completed the transition to run-time evaluation (TR) | |
| - renamed the .startServer() method of Template to .compile() (TR) | |
| - renamed the 'delayedStart' setting as 'delayedCompile' (TR) | |
| - added .redefineTemplateBlock as an alias to Template.defineTemplateBlock | |
| (TR) | |
| - got relative path includes working with Webware and Cheetah.Servlet (TR) | |
| - lots of changes in the docs (TR & MO) | |
| - implemented a C version of NameMapper (TR + CE) | |
| - added the 'errorCheckers' framwork (TR) | |
| - added the 'formatters' framework and the #formatter directive | |
| - a major restructuring of the modules and internal API (TR) | |
| - made sure that all the #directives with start and end tags are | |
| implemented in such a way that they won't cause 'maximum recursion' limit | |
| errors if their content block is long. Simple regexes didn't cut it in these | |
| cases. (TR) | |
| - #macro | |
| - multiline comments | |
| - #data | |
| - #block | |
| - #raw | |
| - the parsing of the core tags (the state-dependent ones) after they have been | |
| translated to the internal delimiters | |
| - made a Template.shutdown() method for cleaning up reference cycles before a | |
| template object is deleted. (TR) | |
| - made the parsing and processing of #macros() more robust (TR) | |
| - implemented the file update checking mechanism (TR) | |
| NOTE, the syntax for the #include is now: | |
| #include <ARGS> file = <EXPR> | |
| ... uses the value of EXPR as the path of the file to include. | |
| #include <ARGS> <EXPR> | |
| ... includes the value of the EXPR | |
| where <ARGS> is 'raw' or 'direct' | |
| 0.9.7 (July 13, 2001) | |
| - reimplemented the parsing of $placeholders using the Python tokenize module (TR) | |
| - now translates into Python code instead of going through NameMapper for | |
| each request | |
| - supports arg lists and nested placeholders | |
| - maintained support for autocalling of functions and methods, | |
| will do this serially for $func.otherFunc, etc. | |
| - reimplemented the #include and #raw directives using nested templates for | |
| parsed includes and string attributes of 'Template' to store raw text | |
| The support for file update monitoring of includes is still not implemented (TR) | |
| - moved some stuff from __init__.py into CHANGES and TODO (TR) | |
| - added a new command 'sdist_docs' to setup.py which rebuilds the docs | |
| when making a source distribution (TR) | |
| - changed the name of the ./Cheetah dir to ./src (TR) | |
| - fixed a bug in one of the code filters that was preventing commas from | |
| being used between $placeholders (TR) | |
| - generalized the line ending regex for single-line comments (TR) | |
| - corrected the spelling of 'Delimiters' throughout Cheetah (TR) | |
| - made insertLines in Utilities.py more robust (Chuck) | |
| - added key argument to raising some NotFound exceptions in NameMapper (Chuck) | |
| - fixed strange bug involving missing templateObj parameter | |
| in PlaceholderProcessor.py(Chuck) | |
| - expanded on the docs (Mike) | |
| 0.9.6 (June 12, 2001) | |
| - fixed a bug in NameMapper that was preventing 'obj.__class__.__name__' from mapping (TR) | |
| 0.9.5 (June 10, 2001) | |
| - implemented the #cache directive - see the mailing list (TR) | |
| - reworked the handling of cached $placeholders and set $var to mean NO_CACHE, | |
| $*var to mean STATIC_CACHE, and $*15*var to mean TIMED_REFRESH_CACHE (TR) | |
| - renamed Template._getValueForName as Template.mapName (TR) | |
| 0.9.4 (June 9, 2001) | |
| - created a SettingsManager base class to handle settings for the Template class (TR) | |
| - moved the HTML docs icons into the same dir as the HTML (TR) | |
| 0.9.3 | |
| - updated the User's Guide Makefile. Builds HTML, PDF, and PS in the ./docs dir now. (TR) | |
| - changed the refs to 'Tavis Rudd' in the docs to 'The Cheetah Development Team' (TR) | |
| - added a few bits to the docs (TR) | |
| - did some internal renaming so 'nameMapperTags' are referred as 'placeholderTags' (TR) | |
| - added the #slurp directive (TR) | |
| 0.9.2 | |
| - got the PSP plugin working again. It still need test cases. (TR) | |
| 0.9.1 | |
| - Changed the name of the package to 'Cheetah' from TemplateServer (TR) | |
| - Changed the name of the Server module and its TemplateServer class to 'Template' (TR) | |
| - Changed the name of the 'TScompile' script to 'cheetah-compile' (TR) | |
| - updated the docs (TR) | |
| 0.9.0 | |
| - changed the names and behaviour of the #parse and #include directives (TR) | |
| see the docs for more. (TR) | |
| - changed #verbatim to #raw (TR) | |
| - fixed a bug in Tests.py that caused an error on the first run. (TR) | |
| - more docs (TR + MO) | |
| ! all tests pass with Python 2.1 and 2.0 (TR) | |
| 0.8.4 | |
| - changed the #directive end tags to #end if instead of #/if and #end (TR) | |
| macro instead of #/macro (TR) | |
| - more work on the User's Guide (TR) | |
| - fixed a bug in TScompile (TR) | |
| 0.8.3 | |
| - fixed a problem with the regexs that caused $vars and #directives at the (TR) | |
| very beginning of the template string not to match in Python 2.0 (TR) | |
| - removed some Test cases that made invalid assumptions about the order (TR) | |
| of items in dictionaries. (TR) | |
| 0.8.2 | |
| - finished half of the User's Guide (TR) | |
| - fixed several small bugs (TR) | |
| - added the #comment directive and removed the old <# multiline comment tag #> (TR) | |
| - changed the explicit directive closure to /# from ;# (TR) | |
| 0.7.6 | |
| - several small bug fixes (TR) | |
| - reimplemented the #block directive to avoid maximum recursion depth errors (TR) | |
| with large blocks. (TR) | |
| - created many new test cases in the regression testing suite (TR) | |
| - added an example site to the examples/ directory (TR) | |
| - started the User's Guide (TR) | |
| 0.7.5 | |
| - implemented the command-line compiler (TR) | |
| 0.7.3-4 | |
| - implemented the regression testing suite (TR) | |
| - fixed a number of small bugs (TR) | |
| 0.7.2 | |
| - implemented the #longMacro directive (TR) | |
| ================================================================================ | |
| KEY TO INITIALS USED ABOVE: | |
| TR - Tavis Rudd | |
| MO - Mike Orr | |
| JJ - Shannon 'jj' Behrens | |
| IB - Ian Bicking | |
| CE - Chuck Esterbrook | |
| MH - Mike Halle | |
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