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-rw-r--r--quote.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/quote.c b/quote.c
index 7f2aa6faa4..bcc0dbc50d 100644
--- a/quote.c
+++ b/quote.c
@@ -48,8 +48,14 @@ void sq_quote_buf_pretty(struct strbuf *dst, const char *src)
static const char ok_punct[] = "+,-./:=@_^";
const char *p;
+ /* Avoid losing a zero-length string by adding '' */
+ if (!*src) {
+ strbuf_addstr(dst, "''");
+ return;
+ }
+
for (p = src; *p; p++) {
- if (!isalpha(*p) && !isdigit(*p) && !strchr(ok_punct, *p)) {
+ if (!isalnum(*p) && !strchr(ok_punct, *p)) {
sq_quote_buf(dst, src);
return;
}
@@ -84,12 +90,28 @@ void sq_quote_argv(struct strbuf *dst, const char **argv)
}
}
+/*
+ * Legacy function to append each argv value, quoted as necessasry,
+ * with whitespace before each value. This results in a leading
+ * space in the result.
+ */
void sq_quote_argv_pretty(struct strbuf *dst, const char **argv)
{
+ if (argv[0])
+ strbuf_addch(dst, ' ');
+ sq_append_quote_argv_pretty(dst, argv);
+}
+
+/*
+ * Append each argv value, quoted as necessary, with whitespace between them.
+ */
+void sq_append_quote_argv_pretty(struct strbuf *dst, const char **argv)
+{
int i;
for (i = 0; argv[i]; i++) {
- strbuf_addch(dst, ' ');
+ if (i > 0)
+ strbuf_addch(dst, ' ');
sq_quote_buf_pretty(dst, argv[i]);
}
}