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# $NetBSD: varparse-errors.mk,v 1.3 2020/12/20 19:47:34 rillig Exp $
# Tests for parsing and evaluating all kinds of variable expressions.
#
# This is the basis for redesigning the error handling in Var_Parse and
# Var_Subst, collecting typical and not so typical use cases.
#
# See also:
# VarParseResult
# Var_Parse
# Var_Subst
PLAIN= plain value
LITERAL_DOLLAR= To get a dollar, double $$ it.
INDIRECT= An ${:Uindirect} value.
REF_UNDEF= A reference to an ${UNDEF}undefined variable.
ERR_UNCLOSED= An ${UNCLOSED variable expression.
ERR_BAD_MOD= An ${:Uindirect:Z} expression with an unknown modifier.
ERR_EVAL= An evaluation error ${:Uvalue:C,.,\3,}.
# In a conditional, a variable expression that is not enclosed in quotes is
# expanded using the flags VARE_UNDEFERR and VARE_WANTRES.
# The variable itself must be defined.
# It may refer to undefined variables though.
.if ${REF_UNDEF} != "A reference to an undefined variable."
. error
.endif
# As of 2020-12-01, errors in the variable name are silently ignored.
# Since var.c 1.754 from 2020-12-20, unknown modifiers at parse time result
# in an error message and a non-zero exit status.
VAR.${:U:Z}= unknown modifier in the variable name
.if ${VAR.} != "unknown modifier in the variable name"
. error
.endif
# As of 2020-12-01, errors in the variable name are silently ignored.
# Since var.c 1.754 from 2020-12-20, unknown modifiers at parse time result
# in an error message and a non-zero exit status.
VAR.${:U:Z}post= unknown modifier with text in the variable name
.if ${VAR.post} != "unknown modifier with text in the variable name"
. error
.endif
all:
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