pmacs3/mode/xml.py

107 lines
4.0 KiB
Python

import color, method, mode
from lex import Grammar, Rule, PatternRule, RegionRule, PatternMatchRule
class StringGrammar1(Grammar):
rules = [
PatternRule(r'data', r'[^"&]+'),
PatternRule(r'escaped', r'&[a-z]+;'),
]
class StringGrammar2(Grammar):
rules = [
PatternRule(r'data', r"[^'&]+"),
PatternRule(r'escaped', r'&[a-z]+;'),
]
class CDataGrammar(Grammar):
rules = [PatternRule(r'data', r'(?:[^\]]|\](?!\])|\]\](?!>))+')]
class CommentGrammar(Grammar):
rules = [PatternRule(r'data', r'(?:[^-]|-(?!-)|--(?!>))+')]
class MetadataGrammar(Grammar):
rules = [PatternRule(r'data', r'(?:[^?]|\?(?!>))+')]
class TagGrammar(Grammar):
rules = [
PatternRule(r'attrname', r'[a-zA-Z_][a-zA-Z0-9_]+(?==)'),
PatternRule(r'namespace', r'[a-zA-Z_]+(?=:)'),
PatternRule(r'name', r'[a-zA-Z_][a-zA-Z0-9_]*'),
PatternRule(r'delimiter', r'[:/=]'),
RegionRule(r'string', r'"', StringGrammar1, r'"'),
RegionRule(r'string', r"'", StringGrammar2, r"'"),
PatternRule(r'spaces', r' +'),
PatternRule(r'eol', r'\n'),
]
class XMLGrammar(Grammar):
rules = [
# TODO: how does cdata work again?
PatternRule(r'data', r'[^<& \n]+'),
PatternRule(r'spaces', r' +'),
PatternRule(r'xml.entity', r'&[a-z]+;'),
PatternRule(r'eol', r'\n'),
PatternMatchRule('x', r'(<)(/)([a-zA-Z_][a-zA-Z0-9_]*)(>)',
'xml.tag.start', 'xml.tag.delimiter', 'xml.tag.name',
'xml.tag.end'),
RegionRule(r'xml.tag', r'<(?![\?!])', TagGrammar, r'/?>'),
RegionRule(r'comment', r'<!--', CommentGrammar, r'-->'),
RegionRule(r'xml.metadata', r'<\?', MetadataGrammar, r'\?>'),
RegionRule(r'xml.cdata', r'<!\[CDATA\[', CDataGrammar, r'\]\]>'),
]
class XmlValidate(method.shell.Exec):
'''Valid the buffer's contents as valid XML.'''
show_success = True
args = []
def _execute(self, w, **vargs):
self._doit(w, w.buffer.path, 'xmlwf %(path)r', cmdname='xml-validate')
class XmlCreateTag(method.Method):
'''Create an opening and closing tag'''
args = [method.Argument('tagname', prompt="Tag Name: ",
help="Create an open/close tag pair")]
def _execute(self, w, **vargs):
t = vargs['tagname']
w.insert_string_at_cursor("<%s>" % t)
p = w.logical_cursor()
w.insert_string_at_cursor("</%s>" % t)
w.goto(p)
class XmlCreateComment(method.Method):
'''Create an opening and closing tag'''
def _execute(self, w, **vargs):
w.insert_string_at_cursor("<!-- ")
p = w.logical_cursor()
w.insert_string_at_cursor(" -->")
w.goto(p)
class XmlCreateCdata(method.Method):
'''Create an opening and closing tag'''
def _execute(self, w, **vargs):
w.insert_string_at_cursor("<![CDATA[")
p = w.logical_cursor()
w.insert_string_at_cursor("]]>")
w.goto(p)
class XML(mode.Fundamental):
name = 'XML'
extensions = ['.xml', '.xml.in', '.xsl', '.xsd']
grammar = XMLGrammar
colors = {
'xml.metadata.start': ('magenta', 'default', 'bold'),
'xml.metadata.data': ('magenta', 'default', 'bold'),
'xml.metadata.end': ('magenta', 'default', 'bold'),
'xml.tag.start': ('default', 'default', 'bold'),
'xml.tag.namespace': ('magenta', 'default', 'bold'),
'xml.tag.name': ('blue', 'default', 'bold'),
'xml.tag.attrname': ('cyan', 'default', 'bold'),
'xml.tag.end': ('default', 'default', 'bold'),
'xml.entity': ('magenta', 'default', 'bold'),
'xml.cdata.start': ('magenta', 'default', 'bold'),
'xml.cdata.data': ('green', 'default', 'bold'),
'xml.cdata.end': ('magenta', 'default', 'bold'),
}
actions = [XmlValidate, XmlCreateTag, XmlCreateComment, XmlCreateCdata]
_bindings = {
'xml-create-tag': ('M-t',),
}
install = XML.install