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shell/math: improve comments

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2023-06-26 11:08:40 +02:00
parent 5d8f8570c0
commit e619a25a55
1 changed files with 4 additions and 2 deletions
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6
shell/math.c
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@ -856,9 +856,11 @@ evaluate_string(arith_state_t *math_state, const char *expr)
*/
prec = PREC(op);
if (prec != PREC_LPAREN && prec < UNARYPREC) {
/* binary, ternary or RPAREN */
/* Binary, ternary or RPAREN */
if (lasttok != TOK_VALUE) {
/* must be preceded by a num (example?) */
/* Must be preceded by a value.
* $((2 2 + * 3)) would be accepted without this.
*/
goto syntax_err;
}
/* if op is RPAREN: