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authorSergey Poznyakoff <gray@gnu.org>2019-05-14 12:31:59 (GMT)
committer Sergey Poznyakoff <gray@gnu.org>2019-05-14 12:43:25 (GMT)
commit8652a500669059d77ce7bace6e9e9da1b30c54b0 (patch) (side-by-side diff)
tree54ee082e3804c0574e67252be8fbceb48b8f156a /include
parent65f41a742e025487f8ec7f2e7ca2a3af3283fc96 (diff)
downloadgrecs-8652a500669059d77ce7bace6e9e9da1b30c54b0.tar.gz
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wordsplit: rewrite positional parameters implementation
This improves 3e07e3ad * include/wordsplit.h (ws_paramv,ws_paramc) (ws_parambuf,ws_paramidx,ws_paramsiz): New fields. (WRDSO_PARAMV,WRDSO_PARAM_NEGIDX): New options. (WRDSE_BADPARAM): New error code. (wordsplit_free_parambuf): New proto. * src/wordsplit.c (wordsplit_init): Initialize new fields. (wsplt_assign_var): Fix double-free and memory leak. (expvar): Expand positional parameters. (begin_var_p): Add '#' (wordsplit_free_envbuf): Fix condition. (wordsplit_free_parambuf): New function. (wordsplit_free): Call wordsplit_free_parambuf. (_wordsplit_errstr): New error description. * tests/wordsplit.at: Update wsp invocations. Test positional parameters. * tests/wsp.c: Rewrite.
Diffstat (limited to 'include') (more/less context) (ignore whitespace changes)
-rw-r--r--include/wordsplit.h20
1 files changed, 19 insertions, 1 deletions
diff --git a/include/wordsplit.h b/include/wordsplit.h
index a175275..d7eb26f 100644
--- a/include/wordsplit.h
+++ b/include/wordsplit.h
@@ -77,2 +77,12 @@ struct wordsplit
size_t ws_envsiz; /* Size of the ws_envbuf array */
+
+ char const **ws_paramv; /* [WRDSO_PARAMV] User-supplied positional
+ parameters */
+ size_t ws_paramc; /* Number of positional parameters */
+
+ /* Temporary storage for parameters. Works similarly to ws_enbuf.
+ */
+ char **ws_parambuf;
+ size_t ws_paramidx;
+ size_t ws_paramsiz;
@@ -101,3 +111,3 @@ struct wordsplit
return values. */
-
+
const char *ws_input; /* Input string (the S argument to wordsplit. */
@@ -228,2 +238,8 @@ struct wordsplit
+/* Enable positional parameters */
+#define WRDSO_PARAMV 0x00004000
+/* Enable negative positional indices (${-1} is the last positional
+ parameter) */
+#define WRDSO_PARAM_NEGIDX 0x00008000
+
#define WRDSO_BSKEEP WRDSO_BSKEEP_WORD
@@ -252,2 +268,3 @@ struct wordsplit
#define WRDSE_USERERR 9
+#define WRDSE_BADPARAM 10
@@ -258,2 +275,3 @@ void wordsplit_free_words (wordsplit_t *ws);
void wordsplit_free_envbuf (wordsplit_t *ws);
+void wordsplit_free_parambuf (struct wordsplit *ws);
int wordsplit_get_words (wordsplit_t *ws, size_t *wordc, char ***wordv);

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