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jemdoc.py
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jemdoc.py
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#!/usr/bin/env python
"""jemdoc version 0.7.3, 2012-11-27."""
# Copyright (C) 2007-2012 Jacob Mattingley (jacobm@stanford.edu).
#
# This file is part of jemdoc.
#
# jemdoc is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# jemdoc is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>.
#
# The LaTeX equation portions of this file were initially based on
# latexmath2png, by Kamil Kisiel (kamil@kamikisiel.net).
#
import sys
import os
import re
import time
import StringIO
from subprocess import *
import tempfile
def info():
print __doc__
print 'Platform: ' + sys.platform + '.'
print 'Python: %s, located at %s.' % (sys.version[:5], sys.executable)
print 'Equation support:',
(supported, message) = testeqsupport()
if supported:
print 'yes.'
else:
print 'no.'
print message
def testeqsupport():
supported = True
msg = ''
p = Popen('latex --version', shell=True, stdout=PIPE, stderr=PIPE)
rc = p.wait()
if rc != 0:
msg += ' latex: not found.\n'
supported = False
else:
msg += ' latex: ' + p.stdout.readlines()[0].rstrip() + '.\n'
p = Popen('dvipng --version', shell=True, stdout=PIPE, stderr=PIPE)
rc = p.wait()
if rc != 0:
msg += ' dvipng: not found.\n'
supported = False
else:
msg += ' dvipng: ' + p.stdout.readlines()[0].rstrip() + '.\n'
return (supported, msg[:-1])
class controlstruct(object):
def __init__(self, infile, outfile=None, conf=None, inname=None, eqs=True,
eqdir='eqs', eqdpi=130):
self.inname = inname
self.inf = infile
self.outf = outfile
self.conf = conf
self.linenum = 0
self.otherfiles = []
self.eqs = eqs
self.eqdir = eqdir
self.eqdpi = eqdpi
# Default to supporting equations until we know otherwise.
self.eqsupport = True
self.eqcache = True
self.eqpackages = []
self.texlines = []
self.analytics = None
self.eqbd = {} # equation base depth.
self.baseline = None
def pushfile(self, newfile):
self.otherfiles.insert(0, self.inf)
self.inf = open(newfile, 'rb')
def nextfile(self):
self.inf.close()
self.inf = self.otherfiles.pop(0)
def showhelp():
a = """Usage: jemdoc [OPTIONS] [SOURCEFILE]
Produces html markup from a jemdoc SOURCEFILE.
Most of the time you can use jemdoc without any additional flags.
For example, typing
jemdoc index
will produce an index.html from index.jemdoc, using a default
configuration.
Some configuration options can be overridden by specifying a
configuration file. You can use
jemdoc --show-config
to print a sample configuration file (which includes all of the
default options). Any or all of the configuration [blocks] can be
overwritten by including them in a configuration file, and running,
for example,
jemdoc -c mywebsite.conf index.jemdoc
You can view version and installation details with
jemdoc --version
See http://jemdoc.jaboc.net/ for many more details."""
b = ''
for l in a.splitlines(True):
if l.startswith(' '*4):
b += l[4:]
else:
b += l
print b
def standardconf():
a = """[firstbit]
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta name="generator" content="jemdoc, see http://jemdoc.jaboc.net/" />
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
[defaultcss]
<link rel="stylesheet" href="jemdoc.css" type="text/css" />
[windowtitle]
# used in header for window title.
<title>|</title>
[fwtitlestart]
<div id="fwtitle">
[fwtitleend]
</div>
[doctitle]
# used at top of document.
<div id="toptitle">
<h1>|</h1>
[subtitle]
<div id="subtitle">|</div>
[doctitleend]
</div>
[bodystart]
</head>
<body>
[analytics]
<script type="text/javascript">
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
</script>
<script type="text/javascript">
try {
var pageTracker = _gat._getTracker("|");
pageTracker._trackPageview();
} catch(err) {}</script>
[menustart]
<table summary="Table for page layout." id="tlayout">
<tr valign="top">
<td id="layout-menu">
[menuend]
</td>
<td id="layout-content">
[menucategory]
<div class="menu-category">|</div>
[menuitem]
<div class="menu-item"><a href="|1">|2</a></div>
[specificcss]
<link rel="stylesheet" href="|" type="text/css" />
[specificjs]
<script src="|.js" type="text/javascript"></script>
[currentmenuitem]
<div class="menu-item"><a href="|1" class="current">|2</a></div>
[nomenu]
<div id="layout-content">
[menulastbit]
</td>
</tr>
</table>
[nomenulastbit]
</div>
[bodyend]
</body>
</html>
[infoblock]
<div class="infoblock">
[codeblock]
<div class="codeblock">
[blocktitle]
<div class="blocktitle">|</div>
[infoblockcontent]
<div class="blockcontent">
[codeblockcontent]
<div class="blockcontent"><pre>
[codeblockend]
</pre></div></div>
[codeblockcontenttt]
<div class="blockcontent"><tt class="tthl">
[codeblockendtt]
</tt></div></div>
[infoblockend]
</div></div>
[footerstart]
<div id="footer">
<div id="footer-text">
[footerend]
</div>
</div>
[lastupdated]
Page generated |, by <a href="http://jemdoc.jaboc.net/">jemdoc</a>.
[sourcelink]
(<a href="|">source</a>)
"""
b = ''
for l in a.splitlines(True):
if l.startswith(' '):
b += l[2:]
else:
b += l
return b
class JandalError(Exception):
pass
class NoEqSupport(Exception):
pass
def raisejandal(msg, line=0):
if line == 0:
s = "%s" % msg
else:
s = "line %d: %s" % (line, msg)
raise JandalError(s)
def readnoncomment(f):
l = f.readline()
if l == '':
return l
elif l[0] == '#': # jem: be a little more generous with the comments we accept?
return readnoncomment(f)
else:
return l.rstrip() + '\n' # leave just one \n and no spaces etc.
def parseconf(cns):
syntax = {}
warn = False # jem. make configurable?
# manually add the defaults as a file handle.
fs = [StringIO.StringIO(standardconf())]
for sname in cns:
fs.append(open(sname, 'rb'))
for f in fs:
while pc(controlstruct(f)) != '':
l = readnoncomment(f)
r = re.match(r'\[(.*)\]\n', l)
if r:
tag = r.group(1)
s = ''
l = readnoncomment(f)
while l not in ('\n', ''):
s += l
l = readnoncomment(f)
syntax[tag] = s
f.close()
return syntax
def insertmenuitems(f, mname, current, prefix):
m = open(mname, 'rb')
while pc(controlstruct(m)) != '':
l = readnoncomment(m)
l = l.strip()
if l == '':
continue
r = re.match(r'\s*(.*?)\s*\[(.*)\]', l)
if r: # then we have a menu item.
link = r.group(2)
# Don't use prefix if we have an absolute link.
if '://' not in r.group(2):
link = prefix + allreplace(link)
# replace spaces with nbsps.
# do do this, even though css would make it work - ie ignores.
# only replace spaces that aren't in {{ blocks.
in_quote = False
menuitem = ""
for group in re.split(r'({{|}})', r.group(1)):
if in_quote:
if group == '}}':
in_quote = False
next
else:
menuitem += group
else:
if group == '{{':
in_quote = True
next
else:
menuitem += br(re.sub(r'(?<!\\n) +', '~', group), f)
if link[-len(current):] == current:
hb(f.outf, f.conf['currentmenuitem'], link, menuitem)
else:
hb(f.outf, f.conf['menuitem'], link, menuitem)
else: # menu category.
hb(f.outf, f.conf['menucategory'], br(l, f))
m.close()
def out(f, s):
f.write(s)
def hb(f, tag, content1, content2=None):
"""Writes out a halfblock (hb)."""
if content1 is None:
content1 = ""
if content2 is None:
out(f, re.sub(r'\|', content1, tag))
else:
r = re.sub(r'\|1', content1, tag)
r = re.sub(r'\|2', content2, r)
out(f, r)
def pc(f, ditchcomments=True):
"""Peeks at next character in the file."""
# Should only be used to look at the first character of a new line.
c = f.inf.read(1)
if c: # only undo forward movement if we're not at the end.
if ditchcomments and c == '#':
l = nl(f)
if doincludes(f, l):
return "#"
if c in ' \t':
return pc(f)
if c == '\\':
c += pc(f)
f.inf.seek(-1, 1)
elif f.otherfiles:
f.nextfile()
return pc(f, ditchcomments)
return c
def doincludes(f, l):
ir = 'includeraw{'
i = 'include{'
if l.startswith(ir):
nf = open(l[len(ir):-2], 'rb')
f.outf.write(nf.read())
nf.close()
elif l.startswith(i):
f.pushfile(l[len(i):-2])
else:
return False
return True
def nl(f, withcount=False, codemode=False):
"""Get input file line."""
s = f.inf.readline()
if not s and f.otherfiles:
f.nextfile()
return nl(f, withcount, codemode)
f.linenum += 1
if not codemode:
# remove any special characters - assume they were checked by pc()
# before we got here.
# remove any trailing comments.
s = s.lstrip(' \t')
s = re.sub(r'\s*(?<!\\)#.*', '', s)
if withcount:
if s[0] == '.':
m = r'\.'
else:
m = s[0]
r = re.match('(%s+) ' % m, s)
if not r:
raise SyntaxError("couldn't handle the jandal (code 12039) on line"
" %d" % f.linenum)
if not codemode:
s = s.lstrip('-.=:')
return (s, len(r.group(1)))
else:
if not codemode:
s = s.lstrip('-.=:')
return s
def np(f, withcount=False, eatblanks=True):
"""Gets the next paragraph from the input file."""
# New paragraph markers signalled by characters in following tuple.
if withcount:
(s, c) = nl(f, withcount)
else:
s = nl(f)
while pc(f) not in ('\n', '-', '.', ':', '', '=', '~', '{', '\\(', '\\)'):
s += nl(f)
while eatblanks and pc(f) == '\n':
nl(f) # burn blank line.
# in both cases, ditch the trailing \n.
if withcount:
return (s[:-1], c)
else:
return s[:-1]
def quote(s):
return re.sub(r"""[\\*/+"'<>&$%\.~[\]-]""", r'\\\g<0>', s)
def replacequoted(b):
"""Quotes {{raw html}} sections."""
r = re.compile(r'\{\{(.*?)\}\}', re.M + re.S)
m = r.search(b)
while m:
qb = quote(m.group(1))
b = b[:m.start()] + qb + b[m.end():]
m = r.search(b, m.start())
return b
def replacepercents(b):
# replace %sections% as +{{sections}}+. Do not replace if within a link.
r = re.compile(r'(?<!\\)%(.*?)(?<!\\)%', re.M + re.S)
m = r.search(b)
while m:
#qb = '+' + quote(m.group(1)) + '+'
a = re.sub(r'\[', r'BSNOTLINKLEFT12039XX', m.group(1))
a = re.sub(r'\]', r'BSNOTLINKRIGHT12039XX', a)
qb = '+{{' + a + '}}+'
b = b[:m.start()] + qb + b[m.end():]
m = r.search(b, m.start())
return b
def replaceequations(b, f):
# replace $sections$ and \(sections\) as equations.
rs = ((re.compile(r'(?<!\\)\$(.*?)(?<!\\)\$', re.M + re.S), False),
(re.compile(r'(?<!\\)\\\((.*?)(?<!\\)\\\)', re.M + re.S), True))
for (r, wl) in rs:
m = r.search(b)
while m:
eq = m.group(1)
if wl:
fn = str(abs(hash(eq + 'wl120930alsdk')))
else:
fn = str(abs(hash(eq)))
# Find out the baseline when we first encounter an equation (don't
# bother, otherwise).
# Other initialization stuff which we do only once we know we have
# equations.
if f.baseline is None:
# See if the eqdir exists, and if not, create it.
if not os.path.isdir(f.eqdir):
os.mkdir(f.eqdir)
# Check that the tools we need exist.
(supported, message) = testeqsupport()
if not supported:
print 'WARNING: equation support disabled.'
print message
f.eqsupport = False
return b
# Calculate the baseline.
eqt = "0123456789xxxXXxX"
(f.baseline, blfn) = geneq(f, eqt, dpi=f.eqdpi, wl=False,
outname='baseline-' + str(f.eqdpi))
if os.path.exists(blfn):
os.remove(blfn)
fn = fn + '-' + str(f.eqdpi)
(depth, fullfn) = geneq(f, eq, dpi=f.eqdpi, wl=wl, outname=fn)
fullfn = fullfn.replace('\\', '/')
offset = depth - f.baseline + 1
eqtext = allreplace(eq)
eqtext = eqtext.replace('\\', '')
eqtext = eqtext.replace('\n', ' ')
# Double braces will cause problems with escaping of image tag.
eqtext = eqtext.replace('{{', 'DOUBLEOPENBRACE')
eqtext = eqtext.replace('}}', 'DOUBLECLOSEBRACE')
if wl:
b = b[:m.start()] + \
'{{\n<div class="eqwl"><img class="eqwl" src="%s" alt="%s" />\n<br /></div>}}' % (fullfn, eqtext) + b[m.end():]
else:
b = b[:m.start()] + \
'{{<img class="eq" src="%s" alt="%s" style="vertical-align: -%dpx" />}}' % (fullfn, eqtext, offset) + b[m.end():]
# jem: also clean out line breaks in the alttext?
m = r.search(b, m.start())
return replacequoted(b)
def replaceimages(b):
# works with [img{width}{height}{alttext} location caption].
r = re.compile(r'(?<!\\)\[img((?:\{.*?\}){,3})\s(.*?)(?:\s(.*?))?(?<!\\)\]',
re.M + re.S)
m = r.search(b)
s = re.compile(r'{(.*?)}', re.M + re.S)
while m:
m1 = list(s.findall(m.group(1)))
m1 += ['']*(3 - len(m1))
bits = []
link = m.group(2).strip()
bits.append(r'src=\"%s\"' % quote(link))
if m1[0]:
if m1[0].isdigit():
s = m1[0] + 'px'
else:
s = m1[0]
bits.append(r'width=\"%s\"' % quote(s))
if m1[1]:
if m1[1].isdigit():
s = m1[1] + 'px'
else:
s = m1[1]
bits.append(r'height=\"%s\"' % quote(s))
if m1[2]:
bits.append(r'alt=\"%s\"' % quote(m1[2]))
else:
bits.append(r'alt=\"\"')
b = b[:m.start()] + r'<img %s />' % " ".join(bits) + b[m.end():]
m = r.search(b, m.start())
return b
def replacelinks(b):
# works with [link.html new link style].
r = re.compile(r'(?<!\\)\[(.*?)(?:\s(.*?))?(?<!\\)\]', re.M + re.S)
m = r.search(b)
while m:
m1 = m.group(1).strip()
if '@' in m1 and not m1.startswith('mailto:') and not \
m1.startswith('http://'):
link = 'mailto:' + m1
else:
link = m1
# first unquote any hashes (e.g. for in-page links).
link = re.sub(r'\\#', '#', link)
# remove any +{{ or }}+ links.
link = re.sub(r'(\+\{\{|\}\}\+)', r'%', link)
link = quote(link)
if m.group(2):
linkname = m.group(2).strip()
else:
# remove any mailto before labelling.
linkname = re.sub('^mailto:', '', link)
b = b[:m.start()] + r'<a href=\"%s\">%s<\/a>' % (link, linkname) + b[m.end():]
m = r.search(b, m.start())
return b
def br(b, f, tableblock=False):
"""Does simple text replacements on a block of text. ('block replacements')"""
# Deal with environment variables (say, for Michael Grant).
r = re.compile(r"!\$(\w{2,})\$!", re.M + re.S)
for m in r.findall(b):
repl = os.environ.get(m)
if repl == None:
b = re.sub("!\$%s\$!" % m, 'FAILED_MATCH_' + m, b)
else:
b = re.sub("!\$%s\$!" % m, repl, b)
# Deal with literal backspaces.
if f.eqs and f.eqsupport:
b = replaceequations(b, f)
b = re.sub(r'\\\\', 'jemLITerl33talBS', b)
# Deal with {{html embedding}}.
b = replacequoted(b)
b = allreplace(b)
b = b.lstrip('-. \t') # remove leading spaces, tabs, dashes, dots.
b = replaceimages(b) # jem not sure if this is still used.
# Slightly nasty hackery in this next bit.
b = replacepercents(b)
b = replacelinks(b)
b = re.sub(r'BSNOTLINKLEFT12039XX', r'[', b)
b = re.sub(r'BSNOTLINKRIGHT12039XX', r']', b)
b = replacequoted(b)
# Deal with /italics/ first because the '/' in other tags would otherwise
# interfere.
r = re.compile(r'(?<!\\)/(.*?)(?<!\\)/', re.M + re.S)
b = re.sub(r, r'<i>\1</i>', b)
# Deal with *bold*.
r = re.compile(r'(?<!\\)\*(.*?)(?<!\\)\*', re.M + re.S)
b = re.sub(r, r'<b>\1</b>', b)
# Deal with +monospace+.
r = re.compile(r'(?<!\\)\+(.*?)(?<!\\)\+', re.M + re.S)
b = re.sub(r, r'<tt>\1</tt>', b)
# Deal with "double quotes".
r = re.compile(r'(?<!\\)"(.*?)(?<!\\)"', re.M + re.S)
b = re.sub(r, r'“\1”', b)
# Deal with left quote `.
r = re.compile(r"(?<!\\)`", re.M + re.S)
b = re.sub(r, r'‘', b)
# Deal with apostrophe '.
# Add an assertion that the next character's not a letter, to deal with
# apostrophes properly.
r = re.compile(r"(?<!\\)'(?![a-zA-Z])", re.M + re.S)
b = re.sub(r, r'’', b)
# Deal with em dash ---.
r = re.compile(r"(?<!\\)---", re.M + re.S)
b = re.sub(r, r' — ', b)
# Deal with en dash --.
r = re.compile(r"(?<!\\)--", re.M + re.S)
b = re.sub(r, r'–', b)
# Deal with ellipsis ....
r = re.compile(r"(?<!\\)\.\.\.", re.M + re.S)
b = re.sub(r, r'…', b)
# Deal with non-breaking space ~.
r = re.compile(r"(?<!\\)~", re.M + re.S)
b = re.sub(r, r' ', b)
# Deal with registered trademark \R.
r = re.compile(r"(?<!\\)\\R", re.M + re.S)
b = re.sub(r, r'®', b)
# Deal with copyright \C.
r = re.compile(r"(?<!\\)\\C", re.M + re.S)
b = re.sub(r, r'©', b)
# Deal with middot \M.
r = re.compile(r"(?<!\\)\\M", re.M + re.S)
b = re.sub(r, r'·', b)
# Deal with line break.
r = re.compile(r"(?<!\\)\\n", re.M + re.S)
b = re.sub(r, r'<br />', b)
# Deal with paragraph break. Caution! Should only use when we're already in
# a paragraph.
r = re.compile(r"(?<!\\)\\p", re.M + re.S)
b = re.sub(r, r'</p><p>', b)
if tableblock:
# Deal with ||, meaning </td></tr><tr><td>
r = re.compile(r"(?<!\\)\|\|", re.M + re.S)
f.tablecol = 2
bcopy = b
b = ""
r2 = re.compile(r"(?<!\\)\|", re.M + re.S)
for l in bcopy.splitlines():
f.tablerow += 1
l = re.sub(r, r'</td></tr>\n<tr class="r%d"><td class="c1">' \
% f.tablerow, l)
l2 = ''
col = 2
r2s = r2.split(l)
for x in r2s[:-1]:
l2 += x + ('</td><td class="c%d">' % col)
col += 1
l2 += r2s[-1]
b += l2
# Second to last, remove any remaining quoting backslashes.
b = re.sub(r'\\(?!\\)', '', b)
# Deal with literal backspaces.
b = re.sub('jemLITerl33talBS', r'\\', b)
# Also fix up DOUBLEOPEN and DOUBLECLOSEBRACES.
b = re.sub('DOUBLEOPENBRACE', '{{', b)
b = re.sub('DOUBLECLOSEBRACE', '}}', b)
return b
def allreplace(b):
"""Replacements that should be done on everything."""
r = re.compile(r"(?<!\\)&", re.M + re.S)
b = re.sub(r, r'&', b)
r = re.compile(r"(?<!\\)>", re.M + re.S)
b = re.sub(r, r'>', b)
r = re.compile(r"(?<!\\)<", re.M + re.S)
b = re.sub(r, r'<', b)
return b
def pyint(f, l):
l = l.rstrip()
l = allreplace(l)
r = re.compile(r'(#.*)')
l = r.sub(r'<span class = "comment">\1</span>', l)
if l.startswith('>>>'):
hb(f, '<span class="pycommand">|</span>\n', l)
else:
out(f, l + '\n')
def putbsbs(l):
for i in range(len(l)):
l[i] = '\\b' + l[i] + '\\b'
return l
def gethl(lang):
# disable comments by default, by choosing unlikely regex.
d = {'strings':False}
if lang in ('py', 'python'):
d['statement'] = ['break', 'continue', 'del', 'except', 'exec',
'finally', 'pass', 'print', 'raise', 'return', 'try',
'with', 'global', 'assert', 'lambda', 'yield', 'def',
'class', 'for', 'while', 'if', 'elif', 'else',
'import', 'from', 'as', 'assert']
d['builtin'] = ['True', 'False', 'set', 'open', 'frozenset',
'enumerate', 'object', 'hasattr', 'getattr', 'filter',
'eval', 'zip', 'vars', 'unicode', 'type', 'str',
'repr', 'round', 'range', 'and', 'in', 'is', 'not',
'or']
d['special'] = ['cols', 'optvar', 'param', 'problem', 'norm2', 'norm1',
'value', 'minimize', 'maximize', 'rows', 'rand',
'randn', 'printval', 'matrix']
d['error'] = ['\w*Error',]
d['commentuntilend'] = '#'
d['strings'] = True
elif lang in ['c', 'c++', 'cpp']:
d['statement'] = ['if', 'else', 'printf', 'return', 'for']
d['builtin'] = ['static', 'typedef', 'int', 'float', 'double', 'void',
'clock_t', 'struct', 'long', 'extern', 'char']
d['operator'] = ['#include.*', '#define', '@pyval{', '}@', '@pyif{',
'@py{']
d['error'] = ['\w*Error',]
d['commentuntilend'] = ['//', '/*', ' * ', '*/']
elif lang in ('rb', 'ruby'):
d['statement'] = putbsbs(['while', 'until', 'unless', 'if', 'elsif',
'when', 'then', 'else', 'end', 'begin',
'rescue', 'class', 'def'])
d['operator'] = putbsbs(['and', 'not', 'or'])
d['builtin'] = putbsbs(['true', 'false', 'require', 'warn'])
d['special'] = putbsbs(['IO'])
d['error'] = putbsbs(['\w*Error',])
d['commentuntilend'] = '#'
d['strings'] = True
d['strings'] = True
if lang in ['c++', 'cpp']:
d['builtin'] += ['bool', 'virtual']
d['statement'] += ['new', 'delete']
d['operator'] += ['<<', '>>']
d['special'] = ['public', 'private', 'protected', 'template',
'ASSERT']
elif lang == 'sh':
d['statement'] = ['cd', 'ls', 'sudo', 'cat', 'alias', 'for', 'do',
'done', 'in', ]
d['operator'] = ['>', r'\\', r'\|', ';', '2>', 'monolith>',
'kiwi>', 'ant>', 'kakapo>', 'client>']
d['builtin'] = putbsbs(['gem', 'gcc', 'python', 'curl', 'wget', 'ssh',
'latex', 'find', 'sed', 'gs', 'grep', 'tee',
'gzip', 'killall', 'echo', 'touch',
'ifconfig', 'git', '(?<!\.)tar(?!\.)'])
d['commentuntilend'] = '#'
d['strings'] = True
elif lang == 'matlab':
d['statement'] = putbsbs(['max', 'min', 'find', 'rand', 'cumsum', 'randn', 'help',
'error', 'if', 'end', 'for'])
d['operator'] = ['>', 'ans =', '>>', '~', '\.\.\.']
d['builtin'] = putbsbs(['csolve'])
d['commentuntilend'] = '%'
d['strings'] = True
elif lang == 'commented':
d['commentuntilend'] = '#'
# Add bsbs (whatever those are).
for x in ['statement', 'builtin', 'special', 'error']:
if x in d:
d[x] = putbsbs(d[x])
return d
def language(f, l, hl):
l = l.rstrip()
l = allreplace(l)
# handle strings.
if hl['strings']:
r = re.compile(r'(".*?")')
l = r.sub(r'<span CLCLclass="string">\1</span>', l)
r = re.compile(r"('.*?')")
l = r.sub(r'<span CLCLclass="string">\1</span>', l)
if 'statement' in hl:
r = re.compile('(' + '|'.join(hl['statement']) + ')')
l = r.sub(r'<span class="statement">\1</span>', l)
if 'operator' in hl:
r = re.compile('(' + '|'.join(hl['operator']) + ')')
l = r.sub(r'<span class="operator">\1</span>', l)
if 'builtin' in hl:
r = re.compile('(' + '|'.join(hl['builtin']) + ')')
l = r.sub(r'<span class="builtin">\1</span>', l)
if 'special' in hl:
r = re.compile('(' + '|'.join(hl['special']) + ')')
l = r.sub(r'<span class="special">\1</span>', l)
if 'error' in hl:
r = re.compile('(' + '|'.join(hl['error']) + ')')
l = r.sub(r'<span class="error">\1</span>', l)
l = re.sub('CLCLclass', 'class', l)
if 'commentuntilend' in hl:
cue = hl['commentuntilend']
if isinstance(cue, (list, tuple)):
for x in cue:
if l.strip().startswith(x):
hb(f, '<span class="comment">|</span>\n', allreplace(l))
return
if '//' in cue: # Handle this separately.
r = re.compile(r'\/\/.*')
l = r.sub(r'<span class="comment">\g<0></span>', l)
elif cue == '#': # Handle this separately.
r = re.compile(r'#.*')
l = r.sub(r'<span class="comment">\g<0></span>', l)
elif cue == '%': # Handle this separately.
r = re.compile(r'%.*')
l = r.sub(r'<span class="comment">\g<0></span>', l)
elif l.strip().startswith(cue):
hb(f, '<span class="comment">|</span>\n', allreplace(l))
return
out(f, l + '\n')
def geneq(f, eq, dpi, wl, outname):
# First check if there is an existing file.
eqname = os.path.join(f.eqdir, outname + '.png')
eqdepths = {}
if f.eqcache:
try:
dc = open(os.path.join(f.eqdir, '.eqdepthcache'), 'rb')
for l in dc:
a = l.split()
eqdepths[a[0]] = int(a[1])
dc.close()
if os.path.exists(eqname) and eqname in eqdepths:
return (eqdepths[eqname], eqname)
except IOError:
print 'eqdepthcache read failed.'
# Open tex file.
tempdir = tempfile.gettempdir()
fd, texfile = tempfile.mkstemp('.tex', '', tempdir, True)
basefile = texfile[:-4]
g = os.fdopen(fd, 'wb')
preamble = '\documentclass{article}\n'
for p in f.eqpackages:
preamble += '\usepackage{%s}\n' % p
for p in f.texlines:
# Replace \{ and \} in p with { and }.
# XXX hack.
preamble += re.sub(r'\\(?=[{}])', '', p + '\n')
preamble += '\pagestyle{empty}\n\\begin{document}\n'
g.write(preamble)
# Write the equation itself.
if wl:
g.write('\\[%s\\]' % eq)
else:
g.write('$%s$' % eq)
# Finish off the tex file.
g.write('\n\\newpage\n\end{document}')
g.close()
exts = ['.tex', '.aux', '.dvi', '.log']
try:
# Generate the DVI file
latexcmd = 'latex -file-line-error-style -interaction=nonstopmode ' + \
'-output-directory %s %s' % (tempdir, texfile)
p = Popen(latexcmd, shell=True, stdout=PIPE)
rc = p.wait()
if rc != 0:
for l in p.stdout.readlines():
print ' ' + l.rstrip()
exts.remove('.tex')
raise Exception('latex error')
dvifile = basefile + '.dvi'
dvicmd = 'dvipng --freetype0 -Q 9 -z 3 --depth -q -T tight -D %i -bg Transparent -o %s %s' % (dpi, eqname, dvifile)
# discard warnings, as well.
p = Popen(dvicmd, shell=True, stdout=PIPE, stderr=PIPE)
rc = p.wait()
if rc != 0:
print p.stderr.readlines()
raise Exception('dvipng error')
depth = int(p.stdout.readlines()[-1].split('=')[-1])
finally:
# Clean up.
for ext in exts: