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Add implementations for firstword/lastword

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Bug: 226974242
Test: ./out/rbcrun ./build/make/tests/run.rbc
Change-Id: Ibb992f42a59212bae48acd55647b2d0872c2f69e
This commit is contained in:
Cole Faust 2022-04-27 17:50:55 -07:00
parent 63e1012b05
commit c93109dc36
2 changed files with 26 additions and 0 deletions
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17
core/product_config.rbc
View file

@ -605,6 +605,21 @@ def _filter(pattern, text):
break
return res
def _first_word(input):
"""Equivalent to the GNU make function $(firstword)."""
input = __words(input)
if len(input) == 0:
return ""
return input[0]
def _last_word(input):
"""Equivalent to the GNU make function $(lastword)."""
input = __words(input)
l = len(input)
if l == 0:
return ""
return input[l-1]
def _dir(paths):
"""Equivalent to the GNU make function $(dir).
@ -862,6 +877,8 @@ rblf = struct(
filter_out = _filter_out,
find_and_copy = _find_and_copy,
findstring = _findstring,
first_word = _first_word,
last_word = _last_word,
inherit = _inherit,
indirect = _indirect,
mk2rbc_error = _mk2rbc_error,

9
tests/run.rbc
View file

@ -81,6 +81,15 @@ assert_eq("/foo/baz", rblf.abspath("/foo/bar/../baz"))
assert_eq(cwd+"/foo/bar "+cwd+"/foo/baz", rblf.abspath("foo/bar foo/baz"))
assert_eq("/baz", rblf.abspath("/../../../../../../../../../../../../../../../../baz"))
assert_eq("foo", rblf.first_word("foo bar"))
assert_eq("foo", rblf.first_word(["foo", "bar"]))
assert_eq("", rblf.first_word(""))
assert_eq("", rblf.first_word([]))
assert_eq("bar", rblf.last_word("foo bar"))
assert_eq("bar", rblf.last_word(["foo", "bar"]))
assert_eq("", rblf.last_word(""))
assert_eq("", rblf.last_word([]))
assert_eq(
["build/make/tests/board.rbc", "build/make/tests/board_input_vars.rbc"],
rblf.expand_wildcard("build/make/tests/board*.rbc")