Mercurial > hg
annotate doc/runrst @ 34330:89aec1834a86
templatekw: add new-style template expansion to {manifest}
The goal is to allow us to easily access to nested data. The dot operator
will be introduced later so we can write '{p1.files}' instead of
'{revset("p1()") % "{files}"}' for example.
In the example above, 'p1' needs to carry a mapping dict along with its
string representation. If it were a list or a dict, it could be wrapped
semi-transparently with the _hybrid class, but for non-list/dict types,
it would be difficult to proxy all necessary functions to underlying value
type because several core operations may conflict with the ones of the
underlying value:
- hash(value) should be different from hash(wrapped(value)), which means
dict[wrapped(value)] would be invalid
- 'value == wrapped(value)' would be false, breaks 'ifcontains'
- len(wrapped(value)) may be either len(value) or len(iter(wrapped(value)))
So the wrapper has no proxy functions and its scope designed to be minimal.
It's unwrapped at eval*() functions so we don't have to care for a wrapped
object unless it's really needed:
# most template functions just call evalfuncarg()
unwrapped_value = evalfuncarg(context, mapping, args[n])
# if wrapped value is needed, use evalrawexp()
maybe_wrapped_value = evalrawexp(context, mapping, args[n])
Another idea was to wrap every template variable with a tagging class, but
which seemed uneasy without a static type checker.
This patch updates {manifest} to a mappable as an example.
author | Yuya Nishihara <yuya@tcha.org> |
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date | Sun, 24 Apr 2016 18:41:23 +0900 |
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1 #!/usr/bin/env python |
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2 # |
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3 # runrst - register custom roles and run correct writer |
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4 # |
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5 # Copyright 2010 Matt Mackall <mpm@selenic.com> and others |
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6 # |
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7 # This software may be used and distributed according to the terms of the |
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8 # GNU General Public License version 2 or any later version. |
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9 |
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10 """usage: %s WRITER args... |
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11 |
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12 where WRITER is the name of a Docutils writer such as 'html' or 'manpage' |
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13 """ |
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14 |
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15 import sys |
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16 try: |
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17 from docutils.parsers.rst import roles |
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18 from docutils.core import publish_cmdline |
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19 from docutils import nodes, utils |
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20 except ImportError: |
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21 sys.stderr.write("abort: couldn't generate documentation: docutils " |
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22 "module is missing\n") |
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23 sys.stderr.write("please install python-docutils or see " |
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24 "http://docutils.sourceforge.net/\n") |
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25 sys.exit(-1) |
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26 |
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27 def role_hg(name, rawtext, text, lineno, inliner, |
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28 options={}, content=[]): |
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29 text = "hg " + utils.unescape(text) |
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30 linktext = nodes.literal(rawtext, text) |
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31 parts = text.split() |
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32 cmd, args = parts[1], parts[2:] |
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33 refuri = "hg.1.html#%s" % cmd |
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34 if cmd == 'help' and args: |
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35 if args[0] == 'config': |
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36 # :hg:`help config` |
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37 refuri = "hgrc.5.html" |
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38 elif args[0].startswith('config.'): |
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39 # :hg:`help config.SECTION...` |
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40 refuri = "hgrc.5.html#%s" % args[0].split('.', 2)[1] |
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41 elif len(args) >= 2 and args[0] == '-c': |
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42 # :hg:`help -c COMMAND ...` is equivalent to :hg:`COMMAND` |
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43 # (mainly for :hg:`help -c config`) |
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44 refuri = "hg.1.html#%s" % args[1] |
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45 else: |
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46 refuri = "hg.1.html#%s" % args[0] |
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47 node = nodes.reference(rawtext, '', linktext, |
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48 refuri=refuri) |
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49 return [node], [] |
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50 |
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51 roles.register_local_role("hg", role_hg) |
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52 |
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53 if __name__ == "__main__": |
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54 if len(sys.argv) < 2: |
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55 sys.stderr.write(__doc__ % sys.argv[0]) |
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56 sys.exit(1) |
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57 |
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58 writer = sys.argv[1] |
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59 del sys.argv[1] |
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60 |
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61 publish_cmdline(writer_name=writer) |