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# templater.py - template expansion for output
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#
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# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import os
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import re
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import types
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from .i18n import _
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from . import (
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config,
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error,
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minirst,
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parser,
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revset as revsetmod,
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templatefilters,
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templatekw,
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util,
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)
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# template parsing
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elements = {
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# token-type: binding-strength, primary, prefix, infix, suffix
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"(": (20, None, ("group", 1, ")"), ("func", 1, ")"), None),
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",": (2, None, None, ("list", 2), None),
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"|": (5, None, None, ("|", 5), None),
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"%": (6, None, None, ("%", 6), None),
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")": (0, None, None, None, None),
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"integer": (0, "integer", None, None, None),
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"symbol": (0, "symbol", None, None, None),
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"string": (0, "string", None, None, None),
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"template": (0, "template", None, None, None),
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"end": (0, None, None, None, None),
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}
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def tokenize(program, start, end):
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pos = start
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while pos < end:
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c = program[pos]
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if c.isspace(): # skip inter-token whitespace
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pass
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elif c in "(,)%|": # handle simple operators
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yield (c, None, pos)
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elif c in '"\'': # handle quoted templates
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s = pos + 1
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data, pos = _parsetemplate(program, s, end, c)
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yield ('template', data, s)
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pos -= 1
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elif c == 'r' and program[pos:pos + 2] in ("r'", 'r"'):
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# handle quoted strings
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c = program[pos + 1]
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s = pos = pos + 2
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while pos < end: # find closing quote
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d = program[pos]
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if d == '\\': # skip over escaped characters
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pos += 2
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continue
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if d == c:
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yield ('string', program[s:pos], s)
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break
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pos += 1
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else:
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raise error.ParseError(_("unterminated string"), s)
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elif c.isdigit() or c == '-':
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s = pos
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if c == '-': # simply take negate operator as part of integer
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pos += 1
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if pos >= end or not program[pos].isdigit():
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raise error.ParseError(_("integer literal without digits"), s)
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pos += 1
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while pos < end:
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d = program[pos]
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if not d.isdigit():
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break
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pos += 1
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yield ('integer', program[s:pos], s)
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pos -= 1
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elif (c == '\\' and program[pos:pos + 2] in (r"\'", r'\"')
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or c == 'r' and program[pos:pos + 3] in (r"r\'", r'r\"')):
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# handle escaped quoted strings for compatibility with 2.9.2-3.4,
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# where some of nested templates were preprocessed as strings and
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# then compiled. therefore, \"...\" was allowed. (issue4733)
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#
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# processing flow of _evalifliteral() at 5ab28a2e9962:
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# outer template string -> stringify() -> compiletemplate()
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# ------------------------ ------------ ------------------
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# {f("\\\\ {g(\"\\\"\")}"} \\ {g("\"")} [r'\\', {g("\"")}]
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# ~~~~~~~~
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# escaped quoted string
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if c == 'r':
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pos += 1
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token = 'string'
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else:
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token = 'template'
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quote = program[pos:pos + 2]
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s = pos = pos + 2
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while pos < end: # find closing escaped quote
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if program.startswith('\\\\\\', pos, end):
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pos += 4 # skip over double escaped characters
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continue
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if program.startswith(quote, pos, end):
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# interpret as if it were a part of an outer string
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data = parser.unescapestr(program[s:pos])
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if token == 'template':
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data = _parsetemplate(data, 0, len(data))[0]
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yield (token, data, s)
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pos += 1
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break
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pos += 1
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else:
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raise error.ParseError(_("unterminated string"), s)
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elif c.isalnum() or c in '_':
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s = pos
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pos += 1
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while pos < end: # find end of symbol
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d = program[pos]
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if not (d.isalnum() or d == "_"):
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break
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pos += 1
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sym = program[s:pos]
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yield ('symbol', sym, s)
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pos -= 1
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elif c == '}':
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yield ('end', None, pos + 1)
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return
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else:
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raise error.ParseError(_("syntax error"), pos)
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pos += 1
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raise error.ParseError(_("unterminated template expansion"), start)
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def _parsetemplate(tmpl, start, stop, quote=''):
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r"""
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>>> _parsetemplate('foo{bar}"baz', 0, 12)
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([('string', 'foo'), ('symbol', 'bar'), ('string', '"baz')], 12)
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>>> _parsetemplate('foo{bar}"baz', 0, 12, quote='"')
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([('string', 'foo'), ('symbol', 'bar')], 9)
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>>> _parsetemplate('foo"{bar}', 0, 9, quote='"')
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([('string', 'foo')], 4)
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>>> _parsetemplate(r'foo\"bar"baz', 0, 12, quote='"')
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([('string', 'foo"'), ('string', 'bar')], 9)
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>>> _parsetemplate(r'foo\\"bar', 0, 10, quote='"')
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([('string', 'foo\\')], 6)
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"""
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parsed = []
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sepchars = '{' + quote
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pos = start
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p = parser.parser(elements)
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while pos < stop:
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n = min((tmpl.find(c, pos, stop) for c in sepchars),
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key=lambda n: (n < 0, n))
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if n < 0:
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parsed.append(('string', parser.unescapestr(tmpl[pos:stop])))
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pos = stop
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break
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c = tmpl[n]
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bs = (n - pos) - len(tmpl[pos:n].rstrip('\\'))
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if bs % 2 == 1:
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# escaped (e.g. '\{', '\\\{', but not '\\{')
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parsed.append(('string', parser.unescapestr(tmpl[pos:n - 1]) + c))
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pos = n + 1
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continue
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if n > pos:
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parsed.append(('string', parser.unescapestr(tmpl[pos:n])))
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if c == quote:
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return parsed, n + 1
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parseres, pos = p.parse(tokenize(tmpl, n + 1, stop))
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parsed.append(parseres)
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if quote:
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raise error.ParseError(_("unterminated string"), start)
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return parsed, pos
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def compiletemplate(tmpl, context):
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parsed, pos = _parsetemplate(tmpl, 0, len(tmpl))
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return [compileexp(e, context, methods) for e in parsed]
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def compileexp(exp, context, curmethods):
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t = exp[0]
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if t in curmethods:
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return curmethods[t](exp, context)
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raise error.ParseError(_("unknown method '%s'") % t)
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# template evaluation
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def getsymbol(exp):
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if exp[0] == 'symbol':
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return exp[1]
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raise error.ParseError(_("expected a symbol, got '%s'") % exp[0])
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def getlist(x):
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if not x:
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return []
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if x[0] == 'list':
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return getlist(x[1]) + [x[2]]
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return [x]
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def gettemplate(exp, context):
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if exp[0] == 'template':
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return [compileexp(e, context, methods) for e in exp[1]]
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if exp[0] == 'symbol':
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# unlike runsymbol(), here 'symbol' is always taken as template name
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# even if it exists in mapping. this allows us to override mapping
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# by web templates, e.g. 'changelogtag' is redefined in map file.
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return context._load(exp[1])
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raise error.ParseError(_("expected template specifier"))
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def evalfuncarg(context, mapping, arg):
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func, data = arg
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# func() may return string, generator of strings or arbitrary object such
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# as date tuple, but filter does not want generator.
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thing = func(context, mapping, data)
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if isinstance(thing, types.GeneratorType):
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thing = stringify(thing)
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return thing
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def evalinteger(context, mapping, arg, err):
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v = evalfuncarg(context, mapping, arg)
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try:
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return int(v)
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except (TypeError, ValueError):
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raise error.ParseError(err)
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def evalstring(context, mapping, arg):
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func, data = arg
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return stringify(func(context, mapping, data))
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def evalstringliteral(context, mapping, arg):
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"""Evaluate given argument as string template, but returns symbol name
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if it is unknown"""
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func, data = arg
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if func is runsymbol:
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thing = func(context, mapping, data, default=data)
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else:
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thing = func(context, mapping, data)
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return stringify(thing)
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def runinteger(context, mapping, data):
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return int(data)
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def runstring(context, mapping, data):
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return data
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def _recursivesymbolblocker(key):
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def showrecursion(**args):
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raise error.Abort(_("recursive reference '%s' in template") % key)
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return showrecursion
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def _runrecursivesymbol(context, mapping, key):
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raise error.Abort(_("recursive reference '%s' in template") % key)
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def runsymbol(context, mapping, key, default=''):
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v = mapping.get(key)
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if v is None:
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v = context._defaults.get(key)
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if v is None:
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# put poison to cut recursion. we can't move this to parsing phase
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# because "x = {x}" is allowed if "x" is a keyword. (issue4758)
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safemapping = mapping.copy()
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safemapping[key] = _recursivesymbolblocker(key)
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try:
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v = context.process(key, safemapping)
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except TemplateNotFound:
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v = default
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if callable(v):
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return v(**mapping)
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return v
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def buildtemplate(exp, context):
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ctmpl = [compileexp(e, context, methods) for e in exp[1]]
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if len(ctmpl) == 1:
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return ctmpl[0] # fast path for string with no template fragment
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return (runtemplate, ctmpl)
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def runtemplate(context, mapping, template):
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for func, data in template:
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yield func(context, mapping, data)
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def buildfilter(exp, context):
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arg = compileexp(exp[1], context, methods)
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n = getsymbol(exp[2])
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if n in context._filters:
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filt = context._filters[n]
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return (runfilter, (arg, filt))
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if n in funcs:
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f = funcs[n]
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return (f, [arg])
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raise error.ParseError(_("unknown function '%s'") % n)
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def runfilter(context, mapping, data):
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arg, filt = data
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thing = evalfuncarg(context, mapping, arg)
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try:
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return filt(thing)
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except (ValueError, AttributeError, TypeError):
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if isinstance(arg[1], tuple):
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dt = arg[1][1]
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else:
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dt = arg[1]
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raise error.Abort(_("template filter '%s' is not compatible with "
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"keyword '%s'") % (filt.func_name, dt))
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def buildmap(exp, context):
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func, data = compileexp(exp[1], context, methods)
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ctmpl = gettemplate(exp[2], context)
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return (runmap, (func, data, ctmpl))
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def runmap(context, mapping, data):
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func, data, ctmpl = data
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d = func(context, mapping, data)
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if util.safehasattr(d, 'itermaps'):
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diter = d.itermaps()
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else:
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try:
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diter = iter(d)
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except TypeError:
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if func is runsymbol:
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raise error.ParseError(_("keyword '%s' is not iterable") % data)
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else:
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raise error.ParseError(_("%r is not iterable") % d)
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for i in diter:
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lm = mapping.copy()
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if isinstance(i, dict):
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lm.update(i)
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lm['originalnode'] = mapping.get('node')
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yield runtemplate(context, lm, ctmpl)
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else:
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# v is not an iterable of dicts, this happen when 'key'
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# has been fully expanded already and format is useless.
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# If so, return the expanded value.
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yield i
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def buildfunc(exp, context):
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n = getsymbol(exp[1])
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args = [compileexp(x, context, exprmethods) for x in getlist(exp[2])]
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if n in funcs:
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f = funcs[n]
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return (f, args)
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if n in context._filters:
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if len(args) != 1:
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raise error.ParseError(_("filter %s expects one argument") % n)
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f = context._filters[n]
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return (runfilter, (args[0], f))
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raise error.ParseError(_("unknown function '%s'") % n)
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def date(context, mapping, args):
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""":date(date[, fmt]): Format a date. See :hg:`help dates` for formatting
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strings. The default is a Unix date format, including the timezone:
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"Mon Sep 04 15:13:13 2006 0700"."""
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if not (1 <= len(args) <= 2):
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# i18n: "date" is a keyword
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raise error.ParseError(_("date expects one or two arguments"))
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date = evalfuncarg(context, mapping, args[0])
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fmt = None
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if len(args) == 2:
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fmt = evalstring(context, mapping, args[1])
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try:
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if fmt is None:
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return util.datestr(date)
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else:
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return util.datestr(date, fmt)
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except (TypeError, ValueError):
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# i18n: "date" is a keyword
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raise error.ParseError(_("date expects a date information"))
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def diff(context, mapping, args):
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""":diff([includepattern [, excludepattern]]): Show a diff, optionally
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specifying files to include or exclude."""
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if len(args) > 2:
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# i18n: "diff" is a keyword
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raise error.ParseError(_("diff expects zero, one, or two arguments"))
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def getpatterns(i):
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if i < len(args):
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s = evalstring(context, mapping, args[i]).strip()
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if s:
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return [s]
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return []
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ctx = mapping['ctx']
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chunks = ctx.diff(match=ctx.match([], getpatterns(0), getpatterns(1)))
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return ''.join(chunks)
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def fill(context, mapping, args):
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""":fill(text[, width[, initialident[, hangindent]]]): Fill many
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paragraphs with optional indentation. See the "fill" filter."""
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if not (1 <= len(args) <= 4):
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# i18n: "fill" is a keyword
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raise error.ParseError(_("fill expects one to four arguments"))
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text = evalstring(context, mapping, args[0])
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width = 76
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initindent = ''
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hangindent = ''
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if 2 <= len(args) <= 4:
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width = evalinteger(context, mapping, args[1],
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# i18n: "fill" is a keyword
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_("fill expects an integer width"))
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try:
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initindent = evalstring(context, mapping, args[2])
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hangindent = evalstring(context, mapping, args[3])
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except IndexError:
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pass
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return templatefilters.fill(text, width, initindent, hangindent)
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def pad(context, mapping, args):
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""":pad(text, width[, fillchar=' '[, right=False]]): Pad text with a
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fill character."""
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if not (2 <= len(args) <= 4):
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# i18n: "pad" is a keyword
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raise error.ParseError(_("pad() expects two to four arguments"))
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width = evalinteger(context, mapping, args[1],
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# i18n: "pad" is a keyword
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|
|
_("pad() expects an integer width"))
|
|
|
|
|
|
text = evalstring(context, mapping, args[0])
|
|
|
|
|
|
right = False
|
|
|
fillchar = ' '
|
|
|
if len(args) > 2:
|
|
|
fillchar = evalstring(context, mapping, args[2])
|
|
|
if len(args) > 3:
|
|
|
right = util.parsebool(args[3][1])
|
|
|
|
|
|
if right:
|
|
|
return text.rjust(width, fillchar)
|
|
|
else:
|
|
|
return text.ljust(width, fillchar)
|
|
|
|
|
|
def indent(context, mapping, args):
|
|
|
""":indent(text, indentchars[, firstline]): Indents all non-empty lines
|
|
|
with the characters given in the indentchars string. An optional
|
|
|
third parameter will override the indent for the first line only
|
|
|
if present."""
|
|
|
if not (2 <= len(args) <= 3):
|
|
|
# i18n: "indent" is a keyword
|
|
|
raise error.ParseError(_("indent() expects two or three arguments"))
|
|
|
|
|
|
text = evalstring(context, mapping, args[0])
|
|
|
indent = evalstring(context, mapping, args[1])
|
|
|
|
|
|
if len(args) == 3:
|
|
|
firstline = evalstring(context, mapping, args[2])
|
|
|
else:
|
|
|
firstline = indent
|
|
|
|
|
|
# the indent function doesn't indent the first line, so we do it here
|
|
|
return templatefilters.indent(firstline + text, indent)
|
|
|
|
|
|
def get(context, mapping, args):
|
|
|
""":get(dict, key): Get an attribute/key from an object. Some keywords
|
|
|
are complex types. This function allows you to obtain the value of an
|
|
|
attribute on these types."""
|
|
|
if len(args) != 2:
|
|
|
# i18n: "get" is a keyword
|
|
|
raise error.ParseError(_("get() expects two arguments"))
|
|
|
|
|
|
dictarg = evalfuncarg(context, mapping, args[0])
|
|
|
if not util.safehasattr(dictarg, 'get'):
|
|
|
# i18n: "get" is a keyword
|
|
|
raise error.ParseError(_("get() expects a dict as first argument"))
|
|
|
|
|
|
key = evalfuncarg(context, mapping, args[1])
|
|
|
return dictarg.get(key)
|
|
|
|
|
|
def if_(context, mapping, args):
|
|
|
""":if(expr, then[, else]): Conditionally execute based on the result of
|
|
|
an expression."""
|
|
|
if not (2 <= len(args) <= 3):
|
|
|
# i18n: "if" is a keyword
|
|
|
raise error.ParseError(_("if expects two or three arguments"))
|
|
|
|
|
|
test = evalstring(context, mapping, args[0])
|
|
|
if test:
|
|
|
yield args[1][0](context, mapping, args[1][1])
|
|
|
elif len(args) == 3:
|
|
|
yield args[2][0](context, mapping, args[2][1])
|
|
|
|
|
|
def ifcontains(context, mapping, args):
|
|
|
""":ifcontains(search, thing, then[, else]): Conditionally execute based
|
|
|
on whether the item "search" is in "thing"."""
|
|
|
if not (3 <= len(args) <= 4):
|
|
|
# i18n: "ifcontains" is a keyword
|
|
|
raise error.ParseError(_("ifcontains expects three or four arguments"))
|
|
|
|
|
|
item = evalstring(context, mapping, args[0])
|
|
|
items = evalfuncarg(context, mapping, args[1])
|
|
|
|
|
|
if item in items:
|
|
|
yield args[2][0](context, mapping, args[2][1])
|
|
|
elif len(args) == 4:
|
|
|
yield args[3][0](context, mapping, args[3][1])
|
|
|
|
|
|
def ifeq(context, mapping, args):
|
|
|
""":ifeq(expr1, expr2, then[, else]): Conditionally execute based on
|
|
|
whether 2 items are equivalent."""
|
|
|
if not (3 <= len(args) <= 4):
|
|
|
# i18n: "ifeq" is a keyword
|
|
|
raise error.ParseError(_("ifeq expects three or four arguments"))
|
|
|
|
|
|
test = evalstring(context, mapping, args[0])
|
|
|
match = evalstring(context, mapping, args[1])
|
|
|
if test == match:
|
|
|
yield args[2][0](context, mapping, args[2][1])
|
|
|
elif len(args) == 4:
|
|
|
yield args[3][0](context, mapping, args[3][1])
|
|
|
|
|
|
def join(context, mapping, args):
|
|
|
""":join(list, sep): Join items in a list with a delimiter."""
|
|
|
if not (1 <= len(args) <= 2):
|
|
|
# i18n: "join" is a keyword
|
|
|
raise error.ParseError(_("join expects one or two arguments"))
|
|
|
|
|
|
joinset = args[0][0](context, mapping, args[0][1])
|
|
|
if util.safehasattr(joinset, 'itermaps'):
|
|
|
jf = joinset.joinfmt
|
|
|
joinset = [jf(x) for x in joinset.itermaps()]
|
|
|
|
|
|
joiner = " "
|
|
|
if len(args) > 1:
|
|
|
joiner = evalstring(context, mapping, args[1])
|
|
|
|
|
|
first = True
|
|
|
for x in joinset:
|
|
|
if first:
|
|
|
first = False
|
|
|
else:
|
|
|
yield joiner
|
|
|
yield x
|
|
|
|
|
|
def label(context, mapping, args):
|
|
|
""":label(label, expr): Apply a label to generated content. Content with
|
|
|
a label applied can result in additional post-processing, such as
|
|
|
automatic colorization."""
|
|
|
if len(args) != 2:
|
|
|
# i18n: "label" is a keyword
|
|
|
raise error.ParseError(_("label expects two arguments"))
|
|
|
|
|
|
thing = evalstring(context, mapping, args[1])
|
|
|
|
|
|
# apparently, repo could be a string that is the favicon?
|
|
|
repo = mapping.get('repo', '')
|
|
|
if isinstance(repo, str):
|
|
|
return thing
|
|
|
|
|
|
# preserve unknown symbol as literal so effects like 'red', 'bold',
|
|
|
# etc. don't need to be quoted
|
|
|
label = evalstringliteral(context, mapping, args[0])
|
|
|
|
|
|
return repo.ui.label(thing, label)
|
|
|
|
|
|
def latesttag(context, mapping, args):
|
|
|
""":latesttag([pattern]): The global tags matching the given pattern on the
|
|
|
most recent globally tagged ancestor of this changeset."""
|
|
|
if len(args) > 1:
|
|
|
# i18n: "latesttag" is a keyword
|
|
|
raise error.ParseError(_("latesttag expects at most one argument"))
|
|
|
|
|
|
pattern = None
|
|
|
if len(args) == 1:
|
|
|
pattern = evalstring(context, mapping, args[0])
|
|
|
|
|
|
return templatekw.showlatesttags(pattern, **mapping)
|
|
|
|
|
|
def localdate(context, mapping, args):
|
|
|
""":localdate(date[, tz]): Converts a date to the specified timezone.
|
|
|
The default is local date."""
|
|
|
if not (1 <= len(args) <= 2):
|
|
|
# i18n: "localdate" is a keyword
|
|
|
raise error.ParseError(_("localdate expects one or two arguments"))
|
|
|
|
|
|
date = evalfuncarg(context, mapping, args[0])
|
|
|
try:
|
|
|
date = util.parsedate(date)
|
|
|
except AttributeError: # not str nor date tuple
|
|
|
# i18n: "localdate" is a keyword
|
|
|
raise error.ParseError(_("localdate expects a date information"))
|
|
|
if len(args) >= 2:
|
|
|
tzoffset = None
|
|
|
tz = evalfuncarg(context, mapping, args[1])
|
|
|
if isinstance(tz, str):
|
|
|
tzoffset = util.parsetimezone(tz)
|
|
|
if tzoffset is None:
|
|
|
try:
|
|
|
tzoffset = int(tz)
|
|
|
except (TypeError, ValueError):
|
|
|
# i18n: "localdate" is a keyword
|
|
|
raise error.ParseError(_("localdate expects a timezone"))
|
|
|
else:
|
|
|
tzoffset = util.makedate()[1]
|
|
|
return (date[0], tzoffset)
|
|
|
|
|
|
def revset(context, mapping, args):
|
|
|
""":revset(query[, formatargs...]): Execute a revision set query. See
|
|
|
:hg:`help revset`."""
|
|
|
if not len(args) > 0:
|
|
|
# i18n: "revset" is a keyword
|
|
|
raise error.ParseError(_("revset expects one or more arguments"))
|
|
|
|
|
|
raw = evalstring(context, mapping, args[0])
|
|
|
ctx = mapping['ctx']
|
|
|
repo = ctx.repo()
|
|
|
|
|
|
def query(expr):
|
|
|
m = revsetmod.match(repo.ui, expr)
|
|
|
return m(repo)
|
|
|
|
|
|
if len(args) > 1:
|
|
|
formatargs = [evalfuncarg(context, mapping, a) for a in args[1:]]
|
|
|
revs = query(revsetmod.formatspec(raw, *formatargs))
|
|
|
revs = list(revs)
|
|
|
else:
|
|
|
revsetcache = mapping['cache'].setdefault("revsetcache", {})
|
|
|
if raw in revsetcache:
|
|
|
revs = revsetcache[raw]
|
|
|
else:
|
|
|
revs = query(raw)
|
|
|
revs = list(revs)
|
|
|
revsetcache[raw] = revs
|
|
|
|
|
|
return templatekw.showrevslist("revision", revs, **mapping)
|
|
|
|
|
|
def rstdoc(context, mapping, args):
|
|
|
""":rstdoc(text, style): Format ReStructuredText."""
|
|
|
if len(args) != 2:
|
|
|
# i18n: "rstdoc" is a keyword
|
|
|
raise error.ParseError(_("rstdoc expects two arguments"))
|
|
|
|
|
|
text = evalstring(context, mapping, args[0])
|
|
|
style = evalstring(context, mapping, args[1])
|
|
|
|
|
|
return minirst.format(text, style=style, keep=['verbose'])
|
|
|
|
|
|
def shortest(context, mapping, args):
|
|
|
""":shortest(node, minlength=4): Obtain the shortest representation of
|
|
|
a node."""
|
|
|
if not (1 <= len(args) <= 2):
|
|
|
# i18n: "shortest" is a keyword
|
|
|
raise error.ParseError(_("shortest() expects one or two arguments"))
|
|
|
|
|
|
node = evalstring(context, mapping, args[0])
|
|
|
|
|
|
minlength = 4
|
|
|
if len(args) > 1:
|
|
|
minlength = evalinteger(context, mapping, args[1],
|
|
|
# i18n: "shortest" is a keyword
|
|
|
_("shortest() expects an integer minlength"))
|
|
|
|
|
|
cl = mapping['ctx']._repo.changelog
|
|
|
def isvalid(test):
|
|
|
try:
|
|
|
try:
|
|
|
cl.index.partialmatch(test)
|
|
|
except AttributeError:
|
|
|
# Pure mercurial doesn't support partialmatch on the index.
|
|
|
# Fallback to the slow way.
|
|
|
if cl._partialmatch(test) is None:
|
|
|
return False
|
|
|
|
|
|
try:
|
|
|
i = int(test)
|
|
|
# if we are a pure int, then starting with zero will not be
|
|
|
# confused as a rev; or, obviously, if the int is larger than
|
|
|
# the value of the tip rev
|
|
|
if test[0] == '0' or i > len(cl):
|
|
|
return True
|
|
|
return False
|
|
|
except ValueError:
|
|
|
return True
|
|
|
except error.RevlogError:
|
|
|
return False
|
|
|
|
|
|
shortest = node
|
|
|
startlength = max(6, minlength)
|
|
|
length = startlength
|
|
|
while True:
|
|
|
test = node[:length]
|
|
|
if isvalid(test):
|
|
|
shortest = test
|
|
|
if length == minlength or length > startlength:
|
|
|
return shortest
|
|
|
length -= 1
|
|
|
else:
|
|
|
length += 1
|
|
|
if len(shortest) <= length:
|
|
|
return shortest
|
|
|
|
|
|
def strip(context, mapping, args):
|
|
|
""":strip(text[, chars]): Strip characters from a string. By default,
|
|
|
strips all leading and trailing whitespace."""
|
|
|
if not (1 <= len(args) <= 2):
|
|
|
# i18n: "strip" is a keyword
|
|
|
raise error.ParseError(_("strip expects one or two arguments"))
|
|
|
|
|
|
text = evalstring(context, mapping, args[0])
|
|
|
if len(args) == 2:
|
|
|
chars = evalstring(context, mapping, args[1])
|
|
|
return text.strip(chars)
|
|
|
return text.strip()
|
|
|
|
|
|
def sub(context, mapping, args):
|
|
|
""":sub(pattern, replacement, expression): Perform text substitution
|
|
|
using regular expressions."""
|
|
|
if len(args) != 3:
|
|
|
# i18n: "sub" is a keyword
|
|
|
raise error.ParseError(_("sub expects three arguments"))
|
|
|
|
|
|
pat = evalstring(context, mapping, args[0])
|
|
|
rpl = evalstring(context, mapping, args[1])
|
|
|
src = evalstring(context, mapping, args[2])
|
|
|
try:
|
|
|
patre = re.compile(pat)
|
|
|
except re.error:
|
|
|
# i18n: "sub" is a keyword
|
|
|
raise error.ParseError(_("sub got an invalid pattern: %s") % pat)
|
|
|
try:
|
|
|
yield patre.sub(rpl, src)
|
|
|
except re.error:
|
|
|
# i18n: "sub" is a keyword
|
|
|
raise error.ParseError(_("sub got an invalid replacement: %s") % rpl)
|
|
|
|
|
|
def startswith(context, mapping, args):
|
|
|
""":startswith(pattern, text): Returns the value from the "text" argument
|
|
|
if it begins with the content from the "pattern" argument."""
|
|
|
if len(args) != 2:
|
|
|
# i18n: "startswith" is a keyword
|
|
|
raise error.ParseError(_("startswith expects two arguments"))
|
|
|
|
|
|
patn = evalstring(context, mapping, args[0])
|
|
|
text = evalstring(context, mapping, args[1])
|
|
|
if text.startswith(patn):
|
|
|
return text
|
|
|
return ''
|
|
|
|
|
|
|
|
|
def word(context, mapping, args):
|
|
|
""":word(number, text[, separator]): Return the nth word from a string."""
|
|
|
if not (2 <= len(args) <= 3):
|
|
|
# i18n: "word" is a keyword
|
|
|
raise error.ParseError(_("word expects two or three arguments, got %d")
|
|
|
% len(args))
|
|
|
|
|
|
num = evalinteger(context, mapping, args[0],
|
|
|
# i18n: "word" is a keyword
|
|
|
_("word expects an integer index"))
|
|
|
text = evalstring(context, mapping, args[1])
|
|
|
if len(args) == 3:
|
|
|
splitter = evalstring(context, mapping, args[2])
|
|
|
else:
|
|
|
splitter = None
|
|
|
|
|
|
tokens = text.split(splitter)
|
|
|
if num >= len(tokens) or num < -len(tokens):
|
|
|
return ''
|
|
|
else:
|
|
|
return tokens[num]
|
|
|
|
|
|
# methods to interpret function arguments or inner expressions (e.g. {_(x)})
|
|
|
exprmethods = {
|
|
|
"integer": lambda e, c: (runinteger, e[1]),
|
|
|
"string": lambda e, c: (runstring, e[1]),
|
|
|
"symbol": lambda e, c: (runsymbol, e[1]),
|
|
|
"template": buildtemplate,
|
|
|
"group": lambda e, c: compileexp(e[1], c, exprmethods),
|
|
|
# ".": buildmember,
|
|
|
"|": buildfilter,
|
|
|
"%": buildmap,
|
|
|
"func": buildfunc,
|
|
|
}
|
|
|
|
|
|
# methods to interpret top-level template (e.g. {x}, {x|_}, {x % "y"})
|
|
|
methods = exprmethods.copy()
|
|
|
methods["integer"] = exprmethods["symbol"] # '{1}' as variable
|
|
|
|
|
|
funcs = {
|
|
|
"date": date,
|
|
|
"diff": diff,
|
|
|
"fill": fill,
|
|
|
"get": get,
|
|
|
"if": if_,
|
|
|
"ifcontains": ifcontains,
|
|
|
"ifeq": ifeq,
|
|
|
"indent": indent,
|
|
|
"join": join,
|
|
|
"label": label,
|
|
|
"latesttag": latesttag,
|
|
|
"localdate": localdate,
|
|
|
"pad": pad,
|
|
|
"revset": revset,
|
|
|
"rstdoc": rstdoc,
|
|
|
"shortest": shortest,
|
|
|
"startswith": startswith,
|
|
|
"strip": strip,
|
|
|
"sub": sub,
|
|
|
"word": word,
|
|
|
}
|
|
|
|
|
|
# template engine
|
|
|
|
|
|
stringify = templatefilters.stringify
|
|
|
|
|
|
def _flatten(thing):
|
|
|
'''yield a single stream from a possibly nested set of iterators'''
|
|
|
if isinstance(thing, str):
|
|
|
yield thing
|
|
|
elif not util.safehasattr(thing, '__iter__'):
|
|
|
if thing is not None:
|
|
|
yield str(thing)
|
|
|
else:
|
|
|
for i in thing:
|
|
|
if isinstance(i, str):
|
|
|
yield i
|
|
|
elif not util.safehasattr(i, '__iter__'):
|
|
|
if i is not None:
|
|
|
yield str(i)
|
|
|
elif i is not None:
|
|
|
for j in _flatten(i):
|
|
|
yield j
|
|
|
|
|
|
def unquotestring(s):
|
|
|
'''unwrap quotes'''
|
|
|
if len(s) < 2 or s[0] != s[-1]:
|
|
|
raise SyntaxError(_('unmatched quotes'))
|
|
|
return s[1:-1]
|
|
|
|
|
|
class engine(object):
|
|
|
'''template expansion engine.
|
|
|
|
|
|
template expansion works like this. a map file contains key=value
|
|
|
pairs. if value is quoted, it is treated as string. otherwise, it
|
|
|
is treated as name of template file.
|
|
|
|
|
|
templater is asked to expand a key in map. it looks up key, and
|
|
|
looks for strings like this: {foo}. it expands {foo} by looking up
|
|
|
foo in map, and substituting it. expansion is recursive: it stops
|
|
|
when there is no more {foo} to replace.
|
|
|
|
|
|
expansion also allows formatting and filtering.
|
|
|
|
|
|
format uses key to expand each item in list. syntax is
|
|
|
{key%format}.
|
|
|
|
|
|
filter uses function to transform value. syntax is
|
|
|
{key|filter1|filter2|...}.'''
|
|
|
|
|
|
def __init__(self, loader, filters=None, defaults=None):
|
|
|
self._loader = loader
|
|
|
if filters is None:
|
|
|
filters = {}
|
|
|
self._filters = filters
|
|
|
if defaults is None:
|
|
|
defaults = {}
|
|
|
self._defaults = defaults
|
|
|
self._cache = {}
|
|
|
|
|
|
def _load(self, t):
|
|
|
'''load, parse, and cache a template'''
|
|
|
if t not in self._cache:
|
|
|
# put poison to cut recursion while compiling 't'
|
|
|
self._cache[t] = [(_runrecursivesymbol, t)]
|
|
|
try:
|
|
|
self._cache[t] = compiletemplate(self._loader(t), self)
|
|
|
except: # re-raises
|
|
|
del self._cache[t]
|
|
|
raise
|
|
|
return self._cache[t]
|
|
|
|
|
|
def process(self, t, mapping):
|
|
|
'''Perform expansion. t is name of map element to expand.
|
|
|
mapping contains added elements for use during expansion. Is a
|
|
|
generator.'''
|
|
|
return _flatten(runtemplate(self, mapping, self._load(t)))
|
|
|
|
|
|
engines = {'default': engine}
|
|
|
|
|
|
def stylelist():
|
|
|
paths = templatepaths()
|
|
|
if not paths:
|
|
|
return _('no templates found, try `hg debuginstall` for more info')
|
|
|
dirlist = os.listdir(paths[0])
|
|
|
stylelist = []
|
|
|
for file in dirlist:
|
|
|
split = file.split(".")
|
|
|
if split[0] == "map-cmdline":
|
|
|
stylelist.append(split[1])
|
|
|
return ", ".join(sorted(stylelist))
|
|
|
|
|
|
class TemplateNotFound(error.Abort):
|
|
|
pass
|
|
|
|
|
|
class templater(object):
|
|
|
|
|
|
def __init__(self, mapfile, filters=None, defaults=None, cache=None,
|
|
|
minchunk=1024, maxchunk=65536):
|
|
|
'''set up template engine.
|
|
|
mapfile is name of file to read map definitions from.
|
|
|
filters is dict of functions. each transforms a value into another.
|
|
|
defaults is dict of default map definitions.'''
|
|
|
if filters is None:
|
|
|
filters = {}
|
|
|
if defaults is None:
|
|
|
defaults = {}
|
|
|
if cache is None:
|
|
|
cache = {}
|
|
|
self.mapfile = mapfile or 'template'
|
|
|
self.cache = cache.copy()
|
|
|
self.map = {}
|
|
|
if mapfile:
|
|
|
self.base = os.path.dirname(mapfile)
|
|
|
else:
|
|
|
self.base = ''
|
|
|
self.filters = templatefilters.filters.copy()
|
|
|
self.filters.update(filters)
|
|
|
self.defaults = defaults
|
|
|
self.minchunk, self.maxchunk = minchunk, maxchunk
|
|
|
self.ecache = {}
|
|
|
|
|
|
if not mapfile:
|
|
|
return
|
|
|
if not os.path.exists(mapfile):
|
|
|
raise error.Abort(_("style '%s' not found") % mapfile,
|
|
|
hint=_("available styles: %s") % stylelist())
|
|
|
|
|
|
conf = config.config(includepaths=templatepaths())
|
|
|
conf.read(mapfile)
|
|
|
|
|
|
for key, val in conf[''].items():
|
|
|
if not val:
|
|
|
raise SyntaxError(_('%s: missing value') % conf.source('', key))
|
|
|
if val[0] in "'\"":
|
|
|
try:
|
|
|
self.cache[key] = unquotestring(val)
|
|
|
except SyntaxError as inst:
|
|
|
raise SyntaxError('%s: %s' %
|
|
|
(conf.source('', key), inst.args[0]))
|
|
|
else:
|
|
|
val = 'default', val
|
|
|
if ':' in val[1]:
|
|
|
val = val[1].split(':', 1)
|
|
|
self.map[key] = val[0], os.path.join(self.base, val[1])
|
|
|
|
|
|
def __contains__(self, key):
|
|
|
return key in self.cache or key in self.map
|
|
|
|
|
|
def load(self, t):
|
|
|
'''Get the template for the given template name. Use a local cache.'''
|
|
|
if t not in self.cache:
|
|
|
try:
|
|
|
self.cache[t] = util.readfile(self.map[t][1])
|
|
|
except KeyError as inst:
|
|
|
raise TemplateNotFound(_('"%s" not in template map') %
|
|
|
inst.args[0])
|
|
|
except IOError as inst:
|
|
|
raise IOError(inst.args[0], _('template file %s: %s') %
|
|
|
(self.map[t][1], inst.args[1]))
|
|
|
return self.cache[t]
|
|
|
|
|
|
def __call__(self, t, **mapping):
|
|
|
ttype = t in self.map and self.map[t][0] or 'default'
|
|
|
if ttype not in self.ecache:
|
|
|
self.ecache[ttype] = engines[ttype](self.load,
|
|
|
self.filters, self.defaults)
|
|
|
proc = self.ecache[ttype]
|
|
|
|
|
|
stream = proc.process(t, mapping)
|
|
|
if self.minchunk:
|
|
|
stream = util.increasingchunks(stream, min=self.minchunk,
|
|
|
max=self.maxchunk)
|
|
|
return stream
|
|
|
|
|
|
def templatepaths():
|
|
|
'''return locations used for template files.'''
|
|
|
pathsrel = ['templates']
|
|
|
paths = [os.path.normpath(os.path.join(util.datapath, f))
|
|
|
for f in pathsrel]
|
|
|
return [p for p in paths if os.path.isdir(p)]
|
|
|
|
|
|
def templatepath(name):
|
|
|
'''return location of template file. returns None if not found.'''
|
|
|
for p in templatepaths():
|
|
|
f = os.path.join(p, name)
|
|
|
if os.path.exists(f):
|
|
|
return f
|
|
|
return None
|
|
|
|
|
|
def stylemap(styles, paths=None):
|
|
|
"""Return path to mapfile for a given style.
|
|
|
|
|
|
Searches mapfile in the following locations:
|
|
|
1. templatepath/style/map
|
|
|
2. templatepath/map-style
|
|
|
3. templatepath/map
|
|
|
"""
|
|
|
|
|
|
if paths is None:
|
|
|
paths = templatepaths()
|
|
|
elif isinstance(paths, str):
|
|
|
paths = [paths]
|
|
|
|
|
|
if isinstance(styles, str):
|
|
|
styles = [styles]
|
|
|
|
|
|
for style in styles:
|
|
|
# only plain name is allowed to honor template paths
|
|
|
if (not style
|
|
|
or style in (os.curdir, os.pardir)
|
|
|
or os.sep in style
|
|
|
or os.altsep and os.altsep in style):
|
|
|
continue
|
|
|
locations = [os.path.join(style, 'map'), 'map-' + style]
|
|
|
locations.append('map')
|
|
|
|
|
|
for path in paths:
|
|
|
for location in locations:
|
|
|
mapfile = os.path.join(path, location)
|
|
|
if os.path.isfile(mapfile):
|
|
|
return style, mapfile
|
|
|
|
|
|
raise RuntimeError("No hgweb templates found in %r" % paths)
|
|
|
|
|
|
# tell hggettext to extract docstrings from these functions:
|
|
|
i18nfunctions = funcs.values()
|
|
|
|