pmacs3/mode/html.py

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import os
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import color, method, mode
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from lex import Grammar, PatternRule, RegionRule
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from mode.xml import TagGrammar
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from mode.javascript import JavascriptGrammar
from mode.css import CSSGrammar
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class HTMLGrammar(Grammar):
rules = [
# TODO: how does cdata work again?
RegionRule(r'comment', r'<!--', Grammar, r'-->'),
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# BUG: not all scripts are javascript and not all styles are CSS
# but, dynamically choosing a grammar based on the 'type' attribute
# (which may be on a different line) is impractical.
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RegionRule(r'script', r'<(?=script[^a-zA-Z0-9_])', TagGrammar, r'>', JavascriptGrammar, r'</(?=script>)', TagGrammar, r'>'),
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RegionRule(r'style', r'<(?=style[^a-zA-Z0-9_])', TagGrammar, r'>', CSSGrammar, r'</(?=style>)', TagGrammar, r'>'),
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RegionRule(r'tag', r'</?', TagGrammar, r'/?>'),
]
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class HTML(mode.Fundamental):
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modename = 'HTML'
extensions = ['.html', '.htm', '.shtml', '.shtm', '.xhtml']
grammar = HTMLGrammar
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colors = {}
config = {
'html.viewcmd': 'jfirefox',
}
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def __init__(self, w):
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mode.Fundamental.__init__(self, w)
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self.add_bindings('close-paren', (')',))
self.add_bindings('close-brace', ('}',))
self.add_bindings('close-bracket', (']',))
self.add_action(HtmlViewPage())
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self.add_action(HtmlCheckSpelling())
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_colorbase = {
'start': ('default', 'default'),
'namespace': ('magenta', 'default'),
'name': ('blue', 'default'),
'attrname': ('cyan', 'default'),
'string.start': ('green', 'default'),
'string.null': ('green', 'default'),
'string.end': ('green', 'default'),
'end': ('default', 'default'),
}
for _name in _colorbase:
HTML.colors['script.%s' % _name] = _colorbase[_name]
HTML.colors['style.%s' % _name] = _colorbase[_name]
HTML.colors['tag.%s' % _name] = _colorbase[_name]
class HtmlViewPage(method.Method):
'''Insert a pair of LaTeX-style single-quotes into the buffer'''
def _execute(self, w, **vargs):
viewcmd = w.application.config.get('html.viewcmd')
viewbg = viewcmd.endswith('&')
if viewbg:
viewcmd = viewcmd[:-1]
argv = (viewcmd, w.buffer.path)
if viewbg:
if os.fork() == 0:
try:
os.execvp(viewcmd, argv)
except OSError:
os._exit(1)
else:
w.application.run_external(*argv)
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class HtmlCheckSpelling(method.Method):
"""Check the spelling of the document via ispell -t"""
def _execute(self, w, **vargs):
# -x no backup file
# -M show context menu
# -H treat input document as HTML
w.application.run_external('ispell', '-x', '-M', '-H', w.buffer.path)
if w.buffer.changed_on_disk():
w.buffer.reload()
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install = HTML.install