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tagtree.c optmize clause operator parsing

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makes WS after a clause conditional optional

Change-Id: I335b5381fb788c19130aa8d57dfb18bb43a07c18
This commit is contained in:
William Wilgus 2022-02-27 15:42:24 -05:00
parent 1bcb1e39ee
commit 045f52d475
1 changed files with 31 additions and 29 deletions
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60
apps/tagtree.c
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@ -398,26 +398,28 @@ static int get_tag(int *tag)
static int get_clause(int *condition)
{
static const struct match get_clause_match[] =
{
{"=", clause_is},
{"==", clause_is},
{"!=", clause_is_not},
{">", clause_gt},
{">=", clause_gteq},
{"<", clause_lt},
{"<=", clause_lteq},
{"~", clause_contains},
{"!~", clause_not_contains},
{"^", clause_begins_with},
{"!^", clause_not_begins_with},
{"$", clause_ends_with},
{"!$", clause_not_ends_with},
{"@", clause_oneof}
};
/* one or two operator conditionals */
#define OPS2VAL(op1, op2) ((int)op1 << 8 | (int)op2)
#define CLAUSE(op1, op2, symbol) {OPS2VAL(op1, op2), symbol }
char buf[4];
unsigned int i;
struct clause_symbol {int value;int symbol;};
static const struct clause_symbol get_clause_match[] =
{
CLAUSE('=', ' ', clause_is),
CLAUSE('=', '=', clause_is),
CLAUSE('!', '=', clause_is_not),
CLAUSE('>', ' ', clause_gt),
CLAUSE('>', '=', clause_gteq),
CLAUSE('<', ' ', clause_lt),
CLAUSE('<', '=', clause_lteq),
CLAUSE('~', ' ', clause_contains),
CLAUSE('!', '~', clause_not_contains),
CLAUSE('^', ' ', clause_begins_with),
CLAUSE('!', '^', clause_not_begins_with),
CLAUSE('$', ' ', clause_ends_with),
CLAUSE('!', '$', clause_not_ends_with),
CLAUSE('@', ' ', clause_oneof)
};
/* Find the start. */
while (*strp == ' ' && *strp != '\0')
@ -426,18 +428,16 @@ static int get_clause(int *condition)
if (*strp == '\0')
return 0;
for (i = 0; i < sizeof(buf)-1; i++)
{
if (*strp == '\0' || *strp == ' ')
break ;
buf[i] = *strp;
strp++;
}
buf[i] = '\0';
char op1 = strp[0];
char op2 = strp[1];
if (op2 == '"') /*allow " to end a single op conditional */
op2 = ' ';
for (i = 0; i < ARRAYLEN(get_clause_match); i++)
int value = OPS2VAL(op1, op2);
for (unsigned int i = 0; i < ARRAYLEN(get_clause_match); i++)
{
if (!strcasecmp(buf, get_clause_match[i].str))
if (value == get_clause_match[i].value)
{
*condition = get_clause_match[i].symbol;
return 1;
@ -445,6 +445,8 @@ static int get_clause(int *condition)
}
return 0;
#undef OPS2VAL
#undef CLAUSE
}
static bool read_clause(struct tagcache_search_clause *clause)