pmacs3/mode/latex.py

108 lines
4.0 KiB
Python

import commands, os
import color, method, mode
from lex import Grammar, PatternRule, RegionRule
class LatexGrammar(Grammar):
rules = [
PatternRule(r'comment', r'\%.*$'),
PatternRule(r'latex_control', r'\\[a-zA-Z]+'),
RegionRule(r'latex_argument', r'{', None, r'}'),
RegionRule(r'latex_string', r"`", None, r"'"),
RegionRule(r'latex_string', r"``", None, r"''"),
PatternRule(r'latex_escaped', r'\\.'),
PatternRule(r'latex_special', r'[{}$^_%~#&]'),
]
class Latex(mode.Fundamental):
modename = 'Latex'
extensions = ['.latex', '.tex']
grammar = LatexGrammar
colors = {
'latex_control': ('blue', 'default', 'bold'),
'latex_argument.null': ('cyan', 'default', 'bold'),
'latex_string.start': ('green', 'default', 'bold'),
'latex_string.null': ('green', 'default', 'bold'),
'latex_string.end': ('green', 'default', 'bold'),
'latex_escaped': ('magenta', 'default', 'bold'),
}
def __init__(self, w):
mode.Fundamental.__init__(self, w)
self.add_bindings('wrap-paragraph', ('M-q',))
self.add_action_and_bindings(LatexCommentRegion(), ('C-c #', "C-c \%"))
self.add_action_and_bindings(LatexUncommentRegion(), ('C-u C-c #', "C-u C-c \%"))
self.add_action_and_bindings(LatexInsertSquotes(), ("M-'",))
self.add_action_and_bindings(LatexInsertDquotes(), ('M-"',))
self.add_action_and_bindings(LatexInsertBraces(), ('M-{',))
self.add_action_and_bindings(LatexBuild(), ("C-c C-c",))
self.add_action(LatexBuildPdf())
self.add_action(LatexViewPdf())
class LatexBuild(method.Method):
'''Insert a pair of LaTeX-style single-quotes into the buffer'''
buildcmd = 'latex'
def _build(self, w):
if w.buffer.changed():
return (True, 'Build Cancelled: unsaved buffer')
app = w.application
cmd = "%s '\\batchmode\\input %s' >/dev/null 2>&1" % (self.buildcmd,
w.buffer.path)
status = os.system(cmd)
if status == 0:
return (True, 'Build OK')
else:
return (False, 'Build Error')
def _modpath(self, w, ext):
return os.path.splitext(w.buffer.path)[0] + ext
def _readlog(self, w):
logpath = self._modpath('.log')
f = open(logpath, 'r')
output = f.read()
f.close()
return output
def _execute(self, w, **vargs):
(ok, mesg) = self._build(w)
w.set_error(mesg)
if not ok:
output = self._readlog(w)
bufname = '*%s*' % self.name
w.application.data_buffer(bufname, output, switch_to=not ok)
return ok
class LatexBuildPdf(LatexBuild):
'''Insert a pair of LaTeX-style single-quotes into the buffer'''
buildcmd = 'pdflatex'
class LatexViewPdf(LatexBuildPdf):
'''Insert a pair of LaTeX-style single-quotes into the buffer'''
viewcmd = 'evince'
def _execute(self, w, **vargs):
ok = LatexBuildPdf._execute(self, w, **vargs)
if ok:
pid = os.fork()
if pid == 0:
pdfpath = self._modpath(w, '.pdf')
os.execvp(self.viewcmd, (self.viewcmd, pdfpath))
class LatexCommentRegion(method.CommentRegion):
commentc = '%'
class LatexUncommentRegion(method.UncommentRegion):
commentc = '%'
class LatexInsertSquotes(method.Method):
'''Insert a pair of LaTeX-style single-quotes into the buffer'''
def _execute(self, w, **vargs):
w.insert_string_at_cursor("`'")
w.backward()
class LatexInsertDquotes(method.Method):
'''Insert a pair of LaTeX-style double-quotes into the buffer'''
def _execute(self, w, **vargs):
w.insert_string_at_cursor("``''")
w.backward()
w.backward()
class LatexInsertBraces(method.Method):
'''Insert a pair of curly braces into the buffer'''
def _execute(self, w, **vargs):
w.insert_string_at_cursor("{}")
w.backward()
install = Latex.install