diff options
| -rw-r--r-- | kconfiglib.py | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/kconfiglib.py b/kconfiglib.py index 3e315d1..25a5a31 100644 --- a/kconfiglib.py +++ b/kconfiglib.py @@ -486,28 +486,25 @@ class Config(): order they appear in the Kconfig files.""" return self.comments - def eval(self, s, transform_m = False): + def eval(self, s): """Returns the value of the expression 's' -- where 's' is represented as a string -- in the context of the configuration. Raises Kconfig_Syntax_Error if syntax errors are detected in 's'. - For example, if FOO and BAR are tristate symbols at least - one of which has the value "y", then - config.eval("y && (FOO || BAR)") => "y" - - Note that this functions always yields a tristate value. To get the - value of non-bool, non-tristate symbols, use calc_value(). - - transform_m (default: False) -- - Within conditional expressions (those following e.g. 'if' and - 'depends on') "m" is rewritten as "m" && MODULES internally by the C - implementation and by kconfiglib, so that MODULES needs to be enabled - for the expression to be true. Pass True here if you want that to - happen; otherwise, pass False.""" - return self._eval_expr(self._parse_expr(self._tokenize(s, True), - None, - s, - transform_m = transform_m)) + For example, if FOO and BAR are tristate symbols at least one of which + has the value "y", then config.eval("y && (FOO || BAR)") => "y" + + This functions always yields a tristate value. To get the value of + non-bool, non-tristate symbols, use calc_value(). + + The result of this function is consistent with how evaluation works for + conditional expressions in the configuration as well as in the C + implementation. "m" and m are rewritten as '"m" && MODULES' and 'm && + MODULES', respectively, and a result of "m" will get promoted to "y" if + we're running without modules.""" + return self._eval_expr(self._parse_expr(self._tokenize(s, True), # Feed + None, # Current symbol or choice + s)) # line def get_config_header(self): """Returns the (uncommented) textual header of the .config file most |