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| author | Denys Vlasenko | 2018-12-20 16:48:50 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2018-12-20 16:48:50 +0100 |
| commit | 5acd14ba5b911aff28cb259cabdb84c5f8233e55 (patch) | |
| tree | d771515f2720eac81d997996aa39d35394afc0fc | |
| parent | 503faf9d5331b70d93836d221ff12f97d769499b (diff) | |
| download | busybox-5acd14ba5b911aff28cb259cabdb84c5f8233e55.zip busybox-5acd14ba5b911aff28cb259cabdb84c5f8233e55.tar.gz | |
bc: fix keyword matching to not think "ifz" is the "if" keyword
function old new delta
zbc_lex_next 2224 2225 +1
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | miscutils/bc.c | 2 | ||||
| -rwxr-xr-x | testsuite/bc.tests | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/miscutils/bc.c b/miscutils/bc.c index c528810..1e2ca8b 100644 --- a/miscutils/bc.c +++ b/miscutils/bc.c @@ -2950,6 +2950,8 @@ static BC_STATUS zbc_lex_identifier(BcLex *l) continue; match: // buf starts with keyword bc_lex_kws[i] + if (isalnum(buf[j]) || buf[j]=='_') + continue; // "ifz" does not match "if" keyword, "if." does l->t.t = BC_LEX_KEY_1st_keyword + i; if (!bc_lex_kws_POSIX(i)) { s = bc_posix_error_fmt("%sthe '%.8s' keyword", "POSIX does not allow ", bc_lex_kws[i].name8); diff --git a/testsuite/bc.tests b/testsuite/bc.tests index e303cf6..d33f8c9 100755 --- a/testsuite/bc.tests +++ b/testsuite/bc.tests @@ -76,6 +76,11 @@ testing "bc while(cond)<NL>" \ "8\n7\n6\n5\n4\n3\n2\n1\n9\n" \ "" "i=9;while(--i)\ni\n9" +testing "bc ifz does not match if keyword" \ + "bc" \ + "1\n2\n2\n3\n" \ + "" "ifz=1;ifz\n++ifz;ifz++\nifz" + testing "bc print 1,2,3" \ "bc" \ "123" \ |