1*b0c40a00SSimon J. Gerraty# $NetBSD: varparse-errors.mk,v 1.4 2021/03/15 12:15:03 rillig Exp $ 2e2eeea75SSimon J. Gerraty 3e2eeea75SSimon J. Gerraty# Tests for parsing and evaluating all kinds of variable expressions. 4e2eeea75SSimon J. Gerraty# 5e2eeea75SSimon J. Gerraty# This is the basis for redesigning the error handling in Var_Parse and 6e2eeea75SSimon J. Gerraty# Var_Subst, collecting typical and not so typical use cases. 7e2eeea75SSimon J. Gerraty# 8e2eeea75SSimon J. Gerraty# See also: 9e2eeea75SSimon J. Gerraty# VarParseResult 10e2eeea75SSimon J. Gerraty# Var_Parse 11e2eeea75SSimon J. Gerraty# Var_Subst 12e2eeea75SSimon J. Gerraty 13e2eeea75SSimon J. GerratyPLAIN= plain value 14e2eeea75SSimon J. Gerraty 15e2eeea75SSimon J. GerratyLITERAL_DOLLAR= To get a dollar, double $$ it. 16e2eeea75SSimon J. Gerraty 17e2eeea75SSimon J. GerratyINDIRECT= An ${:Uindirect} value. 18e2eeea75SSimon J. Gerraty 19e2eeea75SSimon J. GerratyREF_UNDEF= A reference to an ${UNDEF}undefined variable. 20e2eeea75SSimon J. Gerraty 21e2eeea75SSimon J. GerratyERR_UNCLOSED= An ${UNCLOSED variable expression. 22e2eeea75SSimon J. Gerraty 23e2eeea75SSimon J. GerratyERR_BAD_MOD= An ${:Uindirect:Z} expression with an unknown modifier. 24e2eeea75SSimon J. Gerraty 25e2eeea75SSimon J. GerratyERR_EVAL= An evaluation error ${:Uvalue:C,.,\3,}. 26e2eeea75SSimon J. Gerraty 27e2eeea75SSimon J. Gerraty# In a conditional, a variable expression that is not enclosed in quotes is 28*b0c40a00SSimon J. Gerraty# expanded using the mode VARE_UNDEFERR. 29e2eeea75SSimon J. Gerraty# The variable itself must be defined. 30e2eeea75SSimon J. Gerraty# It may refer to undefined variables though. 31e2eeea75SSimon J. Gerraty.if ${REF_UNDEF} != "A reference to an undefined variable." 32e2eeea75SSimon J. Gerraty. error 33e2eeea75SSimon J. Gerraty.endif 34e2eeea75SSimon J. Gerraty 3506b9b3e0SSimon J. Gerraty# As of 2020-12-01, errors in the variable name are silently ignored. 3606b9b3e0SSimon J. Gerraty# Since var.c 1.754 from 2020-12-20, unknown modifiers at parse time result 3706b9b3e0SSimon J. Gerraty# in an error message and a non-zero exit status. 3806b9b3e0SSimon J. GerratyVAR.${:U:Z}= unknown modifier in the variable name 3906b9b3e0SSimon J. Gerraty.if ${VAR.} != "unknown modifier in the variable name" 4006b9b3e0SSimon J. Gerraty. error 4106b9b3e0SSimon J. Gerraty.endif 4206b9b3e0SSimon J. Gerraty 4306b9b3e0SSimon J. Gerraty# As of 2020-12-01, errors in the variable name are silently ignored. 4406b9b3e0SSimon J. Gerraty# Since var.c 1.754 from 2020-12-20, unknown modifiers at parse time result 4506b9b3e0SSimon J. Gerraty# in an error message and a non-zero exit status. 4606b9b3e0SSimon J. GerratyVAR.${:U:Z}post= unknown modifier with text in the variable name 4706b9b3e0SSimon J. Gerraty.if ${VAR.post} != "unknown modifier with text in the variable name" 4806b9b3e0SSimon J. Gerraty. error 4906b9b3e0SSimon J. Gerraty.endif 5006b9b3e0SSimon J. Gerraty 51e2eeea75SSimon J. Gerratyall: 52