comparison mercurial/templater.py @ 25815:e71e5629e006

parser: separate actions for primary expression and prefix operator

This will allow us to define both a primary expression, ":", and a prefix
operator, ":y". The ambiguity will be resolved by the next patch.

Prefix actions in elements table are adjusted as follows:

  original prefix      primary  prefix
  -----------------    -------- -----------------
  ("group", 1, ")") -> n/a      ("group", 1, ")")
  ("negate", 19)    -> n/a      ("negate", 19)
  ("symbol",)       -> "symbol" n/a

25814:dc1a49264628

import minirst

# template parsing

elements = {
    # token-type: binding-strength, prefix, infix, suffix
    "(": (20, ("group", 1, ")"), ("func", 1, ")"), None),
    ",": (2, None, ("list", 2), None),
    "|": (5, None, ("|", 5), None),
    "%": (6, None, ("%", 6), None),
    ")": (0, None, None, None),
    "integer": (0, ("integer",), None, None),
    "symbol": (0, ("symbol",), None, None),
    "string": (0, ("string",), None, None),
    "template": (0, ("template",), None, None),
    "end": (0, None, None, None),
}

def tokenize(program, start, end):
    pos = start
    while pos < end:

25815:e71e5629e006

import minirst

# template parsing

elements = {
    # token-type: binding-strength, primary, prefix, infix, suffix
    "(": (20, None, ("group", 1, ")"), ("func", 1, ")"), None),
    ",": (2, None, None, ("list", 2), None),
    "|": (5, None, None, ("|", 5), None),
    "%": (6, None, None, ("%", 6), None),
    ")": (0, None, None, None, None),
    "integer": (0, "integer", None, None, None),
    "symbol": (0, "symbol", None, None, None),
    "string": (0, "string", None, None, None),
    "template": (0, "template", None, None, None),
    "end": (0, None, None, None, None),
}

def tokenize(program, start, end):
    pos = start
    while pos < end: