Date: Sun, 18 Feb 2024 17:41:39 GMT From: Dag-Erling =?utf-8?Q?Sm=C3=B8rgrav?= <des@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: a834edfccd14 - main - sdiff: Fix --expand-tabs and --tabsize. Message-ID: <202402181741.41IHfdSa060682@gitrepo.freebsd.org>
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The branch main has been updated by des: URL: https://cgit.FreeBSD.org/src/commit/?id=a834edfccd14a8c0f152a3b0078469af8e05f3fd commit a834edfccd14a8c0f152a3b0078469af8e05f3fd Author: Dag-Erling Smørgrav <des@FreeBSD.org> AuthorDate: 2024-02-18 17:39:28 +0000 Commit: Dag-Erling Smørgrav <des@FreeBSD.org> CommitDate: 2024-02-18 17:39:50 +0000 sdiff: Fix --expand-tabs and --tabsize. MFC after: 1 week Sponsored by: Klara, Inc. Reviewed by: markj Differential Revision: https://reviews.freebsd.org/D43941 --- usr.bin/sdiff/sdiff.1 | 4 +--- usr.bin/sdiff/sdiff.c | 32 ++++++++++++++++++++++++-------- usr.bin/sdiff/tests/sdiff_test.sh | 18 ++++++++++++++++++ 3 files changed, 43 insertions(+), 11 deletions(-) diff --git a/usr.bin/sdiff/sdiff.1 b/usr.bin/sdiff/sdiff.1 index ef9bb95a0990..ca6594c6479a 100644 --- a/usr.bin/sdiff/sdiff.1 +++ b/usr.bin/sdiff/sdiff.1 @@ -3,7 +3,7 @@ .\" Written by Raymond Lai <ray@cyth.net>. .\" Public domain. .\" -.Dd April 8, 2017 +.Dd February 16, 2024 .Dt SDIFF 1 .Os .Sh NAME @@ -117,8 +117,6 @@ Ignore all spaces. Ignore blank lines. .It Fl E -ignore-tab-expansion Treat tabs and eight spaces as the same. -.It Fl t -ignore-tabs -Ignore tabs. .It Fl H -speed-large-files Assume scattered small changes in a large file. .It Fl -ignore-file-name-case diff --git a/usr.bin/sdiff/sdiff.c b/usr.bin/sdiff/sdiff.c index c6a4c5f9c477..41284d54f869 100644 --- a/usr.bin/sdiff/sdiff.c +++ b/usr.bin/sdiff/sdiff.c @@ -71,6 +71,8 @@ static size_t file1ln, file2ln; /* line number of file1 and file2 */ static bool Iflag; /* ignore sets matching regexp */ static bool lflag; /* print only left column for identical lines */ static bool sflag; /* skip identical lines */ +static bool tflag; /* expand tabs */ +static int tabsize = 8; /* tab size */ FILE *outfp; /* file to save changes to */ const char *tmpdir; /* TMPDIR or /tmp */ @@ -126,7 +128,7 @@ static const char *help_msg[] = { "\t-d, --minimal: minimize diff size.", "\t-I RE, --ignore-matching-lines=RE: ignore changes whose line matches RE.", "\t-i, --ignore-case: do a case-insensitive comparison.", - "\t-t, --expand-tabs: sxpand tabs to spaces.", + "\t-t, --expand-tabs: expand tabs to spaces.", "\t-W, --ignore-all-spaces: ignore all spaces.", "\t--speed-large-files: assume large file with scattered changes.", "\t--strip-trailing-cr: strip trailing carriage return.", @@ -246,7 +248,6 @@ main(int argc, char **argv) case FCASE_IGNORE_OPT: case FCASE_SENSITIVE_OPT: case STRIPCR_OPT: - case TSIZE_OPT: case 'S': break; /* combine no-arg single switches */ @@ -256,7 +257,6 @@ main(int argc, char **argv) case 'd': case 'E': case 'i': - case 't': case 'W': flagc++; flagv = realloc(flagv, flagc + 2); @@ -286,6 +286,9 @@ main(int argc, char **argv) case 's': sflag = true; break; + case 't': + tflag = true; + break; case 'w': wval = strtonum(optarg, WIDTH_MIN, INT_MAX, &errstr); @@ -297,6 +300,11 @@ main(int argc, char **argv) printf("%s\n", help_msg[i]); exit(0); break; + case TSIZE_OPT: + tabsize = strtonum(optarg, 1, INT_MAX, &errstr); + if (errstr) + errx(2, "tabsize is %s: %s", errstr, optarg); + break; default: usage(); break; @@ -511,11 +519,11 @@ printcol(const char *s, size_t *col, const size_t col_max) * If rounding to next multiple of eight causes * an integer overflow, just return. */ - if (*col > SIZE_MAX - 8) + if (*col > SIZE_MAX - tabsize) return; /* Round to next multiple of eight. */ - new_col = (*col / 8 + 1) * 8; + new_col = (*col / tabsize + 1) * tabsize; /* * If printing the tab goes past the column @@ -523,12 +531,20 @@ printcol(const char *s, size_t *col, const size_t col_max) */ if (new_col > col_max) return; - *col = new_col; + + if (tflag) { + do { + putchar(' '); + } while (++*col < new_col); + } else { + putchar(*s); + *col = new_col; + } break; default: - ++(*col); + ++*col; + putchar(*s); } - putchar(*s); } } diff --git a/usr.bin/sdiff/tests/sdiff_test.sh b/usr.bin/sdiff/tests/sdiff_test.sh index 100fa1b123b0..c701c1704d3c 100755 --- a/usr.bin/sdiff/tests/sdiff_test.sh +++ b/usr.bin/sdiff/tests/sdiff_test.sh @@ -191,6 +191,23 @@ short_body() $(atf_get_srcdir)/d_input2 >/dev/null ; cat merge.out" } +atf_test_case tflag +tflag_head() +{ + atf_set "descr" "Checks tab expansion" +} +tflag_body() +{ + printf "a\tb\n" >a + printf "b\ta\n" >b + atf_check -s exit:1 -o match:$'a\tb' \ + sdiff a b + atf_check -s exit:1 -o match:"a {7}b" \ + sdiff -t a b + atf_check -s exit:1 -o match:"a {3}b" \ + sdiff -t --tabsize 4 a b +} + atf_init_test_cases() { atf_add_test_case flags @@ -203,4 +220,5 @@ atf_init_test_cases() atf_add_test_case dot atf_add_test_case stdin atf_add_test_case short + atf_add_test_case tflag }
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