diff options
| -rw-r--r-- | src/nvim/eval.c | 41 |
1 files changed, 37 insertions, 4 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c index 5ee91d417a..86b99c2783 100644 --- a/src/nvim/eval.c +++ b/src/nvim/eval.c @@ -6733,6 +6733,39 @@ static void prepare_assert_error(garray_T *gap) } } +// Append "str" to "gap", escaping unprintable characters. +// Changes NL to \n, CR to \r, etc. +static void ga_concat_esc(garray_T *gap, char_u *str) +{ + char_u *p; + char_u buf[NUMBUFLEN]; + + if (str == NULL) { + ga_concat(gap, (char_u *)"NULL"); + return; + } + + for (p = str; *p != NUL; p++) { + switch (*p) { + case BS: ga_concat(gap, (char_u *)"\\b"); break; + case ESC: ga_concat(gap, (char_u *)"\\e"); break; + case FF: ga_concat(gap, (char_u *)"\\f"); break; + case NL: ga_concat(gap, (char_u *)"\\n"); break; + case TAB: ga_concat(gap, (char_u *)"\\t"); break; + case CAR: ga_concat(gap, (char_u *)"\\r"); break; + case '\\': ga_concat(gap, (char_u *)"\\\\"); break; + default: + if (*p < ' ') { + vim_snprintf((char *)buf, NUMBUFLEN, "\\x%02x", *p); + ga_concat(gap, buf); + } else { + ga_append(gap, *p); + } + break; + } + } +} + // Fill "gap" with information about an assert error. static void fill_assert_error(garray_T *gap, typval_T *opt_msg_tv, char_u *exp_str, typval_T *exp_tv, @@ -6753,11 +6786,11 @@ static void fill_assert_error(garray_T *gap, typval_T *opt_msg_tv, ga_concat(gap, (char_u *)"Expected "); } if (exp_str == NULL) { - tofree = (char_u *) encode_tv2string(exp_tv, NULL); - ga_concat(gap, tofree); + tofree = (char_u *)encode_tv2string(exp_tv, NULL); + ga_concat_esc(gap, tofree); xfree(tofree); } else { - ga_concat(gap, exp_str); + ga_concat_esc(gap, exp_str); } if (atype != ASSERT_NOTEQUAL) { if (atype == ASSERT_MATCH) { @@ -6768,7 +6801,7 @@ static void fill_assert_error(garray_T *gap, typval_T *opt_msg_tv, ga_concat(gap, (char_u *)" but got "); } tofree = (char_u *)encode_tv2string(got_tv, NULL); - ga_concat(gap, tofree); + ga_concat_esc(gap, tofree); xfree(tofree); } } |