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Python Templating Language
来自开放百科 - 灰狐
(版本间的差异)
第12行: | 第12行: | ||
>>>import quixote | >>>import quixote | ||
>>>quixote.enable_ptl() | >>>quixote.enable_ptl() | ||
− | >>> import test_page | + | >>>import test_page |
− | >>> test_page.numbers(5) | + | >>>test_page.numbers(5) |
' 0 1 2 3 4 ' | ' 0 1 2 3 4 ' | ||
==Example== | ==Example== |
2007年3月1日 (四) 23:06的版本
PTL = Python Templating Language
def f [html] (): content
目录 |
First Example
touch test_page.ptl
def numbers [plain] (N): for i in range(N): i " "
>>>import quixote >>>quixote.enable_ptl() >>>import test_page >>>test_page.numbers(5) ' 0 1 2 3 4 '
Example
example.ptl:
To callers, templates behave like regular Python functions
def cell [html] (content): '<td>' # Literal expressions are appended to the output content # Expressions are evaluated, too. '</td>'
def row [html] (L): # L: list of strings containing cell content '<tr>' for s in L: cell(s) '</tr>\n'
def loop (n): # No [html], so this is a regular Python function output = "" for i in range(1, 10): output += row([str(i), i*'a', i*'b']) return output
Using templates
Templates live in .ptl files, which can be imported. To enable this:
import quixote ; quixote.enable_ptl() # Enable import hook
Templates behave just like Python functions:
>>> import example >>> example.cell('abc') <htmltext '<td>abc</td>'> >>> example.loop() <htmltext '<tr><td>1</td><td>a</td><td>b</td>...</tr>\n'>
In .ptl files, methods can even be PTL files.
Automatic escaping
def no_quote [plain] (arg): '<title>' arg # Converted to string '</title>'
def quote [html] (arg): '<title>' arg # Converted to string and HTML-escaped '</title>'
>>> no_quote('A history of the < symbol') '<title>A history of the < symbol</title>' >>> quote('A history of the < symbol') <htmltext '<title>A history of the < symbol</title>'>
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