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reduce number of arguments on quantify_property_node() 

There are only four patterns of the last two arguments to quantify_property_node().
By replacing the lower/upper arguments with a single char, we get more expressive
calls, the last argument directly corresponding to the quantifier that we want to
use (except for '2', which means exactly two).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66052 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
duerst 2018-11-28 00:28:52 +00:00
Родитель eaf9bc00ed
Коммит 42cb4feda1
1 изменённых файлов: 38 добавлений и 20 удалений
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58
regparse.c
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@ -5751,11 +5751,29 @@ quantify_node(Node **np, int lower, int upper)
}
static int
quantify_property_node(Node **np, ScanEnv* env, const char* propname, int lower, int upper)
quantify_property_node(Node **np, ScanEnv* env, const char* propname, char repetitions)
{
int r;
int lower = 0;
int upper = REPEAT_INFINITE;
r = create_property_node(np, env, propname);
if (r != 0) return r;
switch (repetitions) {
case '?':
upper = 1;
break;
case '+':
lower = 1;
break;
case '*':
break;
case '2':
lower = upper = 2;
break;
default:
return ONIGERR_PARSER_BUG;
}
return quantify_node(np, lower, upper);
}
@ -5883,7 +5901,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
/* these are equivalent, so we leave things as is for the moment */
/* T+ */
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=T", 1, REPEAT_INFINITE);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=T", '+');
if (r != 0) goto err;
tmp = onig_node_new_alt(np1, alt);
@ -5892,7 +5910,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
np1 = NULL;
/* L+ */
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=L", 1, REPEAT_INFINITE);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=L", '+');
if (r != 0) goto err;
tmp = onig_node_new_alt(np1, alt);
@ -5904,11 +5922,11 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
{
Node* seq[4];
r = quantify_property_node(seq+0, env, "Grapheme_Cluster_Break=L", 0, REPEAT_INFINITE);
r = quantify_property_node(seq+0, env, "Grapheme_Cluster_Break=L", '*');
if (r != 0) goto err;
r = create_property_node(seq+1, env, "Grapheme_Cluster_Break=LVT");
if (r != 0) goto err;
r = quantify_property_node(seq+2, env, "Grapheme_Cluster_Break=T", 0, REPEAT_INFINITE);
r = quantify_property_node(seq+2, env, "Grapheme_Cluster_Break=T", '*');
if (r != 0) goto err;
seq[3] = NULL_NODE;
@ -5925,13 +5943,13 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
{
Node* seq[5];
r = quantify_property_node(seq+0, env, "Grapheme_Cluster_Break=L", 0, REPEAT_INFINITE);
r = quantify_property_node(seq+0, env, "Grapheme_Cluster_Break=L", '*');
if (r != 0) goto err;
r = create_property_node(seq+1, env, "Grapheme_Cluster_Break=LV");
if (r != 0) goto err;
r = quantify_property_node(seq+2, env, "Grapheme_Cluster_Break=V", 0, REPEAT_INFINITE);
r = quantify_property_node(seq+2, env, "Grapheme_Cluster_Break=V", '*');
if (r != 0) goto err;
r = quantify_property_node(seq+3, env, "Grapheme_Cluster_Break=T", 0, REPEAT_INFINITE);
r = quantify_property_node(seq+3, env, "Grapheme_Cluster_Break=T", '*');
if (r != 0) goto err;
seq[4] = NULL_NODE;
@ -5948,11 +5966,11 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
{
Node* seq[4];
r = quantify_property_node(seq+0, env, "Grapheme_Cluster_Break=L", 0, REPEAT_INFINITE);
r = quantify_property_node(seq+0, env, "Grapheme_Cluster_Break=L", '*');
if (r != 0) goto err;
r = quantify_property_node(seq+1, env, "Grapheme_Cluster_Break=V", 1, REPEAT_INFINITE);
r = quantify_property_node(seq+1, env, "Grapheme_Cluster_Break=V", '+');
if (r != 0) goto err;
r = quantify_property_node(seq+2, env, "Grapheme_Cluster_Break=T", 0, REPEAT_INFINITE);
r = quantify_property_node(seq+2, env, "Grapheme_Cluster_Break=T", '*');
if (r != 0) goto err;
seq[3] = NULL_NODE;
@ -5971,7 +5989,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
* (ZWJ (Glue_After_Zwj | EBG Extend* E_Modifier?) )* */
/* ZWJ (Glue_After_Zwj | E_Base_GAZ Extend* E_Modifier?) */
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=E_Modifier", 0, 1);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=E_Modifier", '?');
if (r != 0) goto err;
tmp = node_new_list(np1, NULL_NODE);
@ -5979,7 +5997,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
list2 = tmp;
np1 = NULL;
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Extend", 0, REPEAT_INFINITE);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Extend", '*');
if (r != 0) goto err;
tmp = node_new_list(np1, list2);
@ -6002,7 +6020,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
/* Unicode 10.0.0 */
/* Glue_After_Zwj */
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Extend", 0, REPEAT_INFINITE);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Extend", '*');
if (r != 0) goto err;
tmp = node_new_list(np1, NULL_NODE);
@ -6094,7 +6112,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
np1 = NULL;
/* E_Modifier? */
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=E_Modifier", 0, 1);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=E_Modifier", '?');
if (r != 0) goto err;
tmp = node_new_list(np1, list2);
@ -6103,7 +6121,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
np1 = NULL;
/* Extend* */
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Extend", 0, REPEAT_INFINITE);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Extend", '*');
if (r != 0) goto err;
tmp = node_new_list(np1, list2);
@ -6141,7 +6159,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
* has such examples.
* http://www.unicode.org/Public/9.0.0/ucd/auxiliary/GraphemeBreakTest.html
*/
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=E_Modifier", 0, 1);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=E_Modifier", '?');
if (r != 0) goto err;
tmp = node_new_list(np1, NULL_NODE);
@ -6181,7 +6199,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
/* this is actually Regional_Indicator+ in Unicode 10.0.0,
* but it is Regional_Indicator{2} in Unicode 11.0.0, so no need to fix */
/* RI-Sequence := Regional_Indicator{2} */
r = quantify_property_node(&np1, env, "Regional_Indicator", 2, 2);
r = quantify_property_node(&np1, env, "Regional_Indicator", '2');
if (r != 0) goto err;
tmp = node_new_list(np1, list2);
@ -6200,7 +6218,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
alt = NULL;
/* Prepend* */
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Prepend", 0, REPEAT_INFINITE);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Prepend", '*');
if (r != 0) goto err;
tmp = node_new_list(np1, list);
@ -6238,7 +6256,7 @@ node_extended_grapheme_cluster(Node** np, ScanEnv* env)
list2 = tmp;
np1 = NULL;
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Prepend", 1, REPEAT_INFINITE);
r = quantify_property_node(&np1, env, "Grapheme_Cluster_Break=Prepend", '+');
if (r != 0) goto err;
tmp = node_new_list(np1, list2);