[PATCH 07/15] chainlint.sed: improve ?!SEMI?! placement accuracy

From: Eric Sunshine <sunshine@sunshineco.com>
To: git@vger.kernel.org
Cc: Jeff King <peff@peff.net>, Elijah Newren <newren@gmail.com>,
	Fabian Stelzer <fs@gigacodes.de>,
	Eric Sunshine <sunshine@sunshineco.com>
Subject: [PATCH 07/15] chainlint.sed: improve ?!SEMI?! placement accuracy
Date: Mon, 13 Dec 2021 01:30:51 -0500	[thread overview]
Message-ID: <20211213063059.19424-8-sunshine@sunshineco.com> (raw)
In-Reply-To: <20211213063059.19424-1-sunshine@sunshineco.com>

When chainlint.sed detects commands separated by a semicolon rather than
by `&&`, it places a ?!SEMI?! annotation at the beginning of the line.
However, this is an unusual location for programmers accustomed to error
messages (from compilers, for instance) indicating the exact point of
the problem. Therefore, relocate the ?!SEMI?! annotation to the location
of the semicolon in order to better direct the programmer's attention to
the source of the problem.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
---
 t/chainlint.sed                       |  4 ++--
 t/chainlint/negated-one-liner.expect  |  4 ++--
 t/chainlint/one-liner.expect          |  6 +++---
 t/chainlint/semicolon.expect          | 14 +++++++-------
 t/chainlint/subshell-one-liner.expect |  8 ++++----
 5 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/t/chainlint.sed b/t/chainlint.sed
index 883a2b307c..60c2099c18 100644
--- a/t/chainlint.sed
+++ b/t/chainlint.sed
@@ -126,7 +126,7 @@ b
 # "&&" (but not ";" in a string)
 :oneline
 /;/{
-	/"[^"]*;[^"]*"/!s/^/?!SEMI?!/
+	/"[^"]*;[^"]*"/!s/;/; ?!SEMI?!/
 }
 b
 
@@ -230,7 +230,7 @@ s/.*\n//
 # string and not ";;" in one-liner "case...esac")
 /;/{
 	/;;/!{
-		/"[^"]*;[^"]*"/!s/^/?!SEMI?!/
+		/"[^"]*;[^"]*"/!s/;/; ?!SEMI?!/
 	}
 }
 # line ends with pipe "...|" -- valid; not missing "&&"
diff --git a/t/chainlint/negated-one-liner.expect b/t/chainlint/negated-one-liner.expect
index cf18429d03..60baf84b7a 100644
--- a/t/chainlint/negated-one-liner.expect
+++ b/t/chainlint/negated-one-liner.expect
@@ -1,5 +1,5 @@
 ! (foo && bar) &&
 ! (foo && bar) >baz &&
 
-?!SEMI?!! (foo; bar) &&
-?!SEMI?!! (foo; bar) >baz
+! (foo; ?!SEMI?! bar) &&
+! (foo; ?!SEMI?! bar) >baz
diff --git a/t/chainlint/one-liner.expect b/t/chainlint/one-liner.expect
index c64058f7af..3b46554728 100644
--- a/t/chainlint/one-liner.expect
+++ b/t/chainlint/one-liner.expect
@@ -2,8 +2,8 @@
 (foo && bar) |
 (foo && bar) >baz &&
 
-?!SEMI?!(foo; bar) &&
-?!SEMI?!(foo; bar) |
-?!SEMI?!(foo; bar) >baz &&
+(foo; ?!SEMI?! bar) &&
+(foo; ?!SEMI?! bar) |
+(foo; ?!SEMI?! bar) >baz &&
 
 (foo "bar; baz")
diff --git a/t/chainlint/semicolon.expect b/t/chainlint/semicolon.expect
index ffc87bdffb..d2d804f5b0 100644
--- a/t/chainlint/semicolon.expect
+++ b/t/chainlint/semicolon.expect
@@ -1,20 +1,20 @@
 (
-?!SEMI?!	cat foo ; echo bar ?!AMP?!
-?!SEMI?!	cat foo ; echo bar
+	cat foo ; ?!SEMI?! echo bar ?!AMP?!
+	cat foo ; ?!SEMI?! echo bar
 >) &&
 (
-?!SEMI?!	cat foo ; echo bar &&
-?!SEMI?!	cat foo ; echo bar
+	cat foo ; ?!SEMI?! echo bar &&
+	cat foo ; ?!SEMI?! echo bar
 >) &&
 (
 	echo "foo; bar" &&
-?!SEMI?!	cat foo; echo bar
+	cat foo; ?!SEMI?! echo bar
 >) &&
 (
-?!SEMI?!	foo;
+	foo; ?!SEMI?!
 >) &&
 (
 cd foo &&
 	for i in a b c; do
-?!SEMI?!		echo;
+		echo; ?!SEMI?!
 >	done)
diff --git a/t/chainlint/subshell-one-liner.expect b/t/chainlint/subshell-one-liner.expect
index ec77aa5b95..432217801b 100644
--- a/t/chainlint/subshell-one-liner.expect
+++ b/t/chainlint/subshell-one-liner.expect
@@ -2,13 +2,13 @@
 	(foo && bar) &&
 	(foo && bar) |
 	(foo && bar) >baz &&
-?!SEMI?!	(foo; bar) &&
-?!SEMI?!	(foo; bar) |
-?!SEMI?!	(foo; bar) >baz &&
+	(foo; ?!SEMI?! bar) &&
+	(foo; ?!SEMI?! bar) |
+	(foo; ?!SEMI?! bar) >baz &&
 	(foo || exit 1) &&
 	(foo || exit 1) |
 	(foo || exit 1) >baz &&
 	(foo && bar) ?!AMP?!
-?!SEMI?!	(foo && bar; baz) ?!AMP?!
+	(foo && bar; ?!SEMI?! baz) ?!AMP?!
 	foobar
 >)
-- 
2.34.1.397.gfae76fe5da

