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SF patch #1007189, multi-line imports, for instance:

Browse source 
"from blah import (foo, bar
baz, bongo)"
This commit is contained in:
Anthony Baxter 2004-08-31 10:07:13 +00:00
parent 876032e570
commit 1a4ddaecc7
14 changed files with 1394 additions and 1181 deletions
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120
Modules/parsermodule.c
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@ -839,6 +839,7 @@ VALIDATER(expr_stmt); VALIDATER(power);
VALIDATER(print_stmt); VALIDATER(del_stmt);
VALIDATER(return_stmt); VALIDATER(list_iter);
VALIDATER(raise_stmt); VALIDATER(import_stmt);
VALIDATER(import_name); VALIDATER(import_from);
VALIDATER(global_stmt); VALIDATER(list_if);
VALIDATER(assert_stmt); VALIDATER(list_for);
VALIDATER(exec_stmt); VALIDATER(compound_stmt);
@ -1714,55 +1715,100 @@ validate_dotted_as_name(node *tree)
}
/* import_stmt:
*
* 'import' dotted_as_name (',' dotted_as_name)*
* | 'from' dotted_name 'import' ('*' | import_as_name (',' import_as_name)*)
/* dotted_as_name (',' dotted_as_name)* */
static int
validate_dotted_as_names(node *tree)
{
int nch = NCH(tree);
int res = is_odd(nch) && validate_dotted_as_name(CHILD(tree, 0));
int i;
for (i = 1; res && (i < nch); i += 2)
res = (validate_comma(CHILD(tree, i))
&& validate_dotted_as_name(CHILD(tree, i + 1)));
return (res);
}
/* import_as_name (',' import_as_name)* [','] */
static int
validate_import_as_names(node *tree)
{
int nch = NCH(tree);
int res = validate_import_as_name(CHILD(tree, 0));
int i;
for (i = 1; res && (i + 1 < nch); i += 2)
res = (validate_comma(CHILD(tree, i))
&& validate_import_as_name(CHILD(tree, i + 1)));
return (res);
}
/* 'import' dotted_as_names */
static int
validate_import_name(node *tree)
{
return (validate_ntype(tree, import_name)
&& validate_numnodes(tree, 2, "import_name")
&& validate_name(CHILD(tree, 0), "import")
&& validate_dotted_as_names(CHILD(tree, 1)));
}
/* 'from' dotted_name 'import' ('*' | '(' import_as_names ')' |
* import_as_names
*/
static int
validate_import_from(node *tree)
{
int nch = NCH(tree);
int res = validate_ntype(tree, import_from)
&& (nch >= 4)
&& validate_name(CHILD(tree, 0), "from")
&& validate_dotted_name(CHILD(tree, 1))
&& validate_name(CHILD(tree, 2), "import");
if (res && TYPE(CHILD(tree, 3)) == LPAR)
res = ((nch == 6)
&& validate_lparen(CHILD(tree, 3))
&& validate_import_as_names(CHILD(tree, 4))
&& validate_rparen(CHILD(tree, 5)));
else if (res && TYPE(CHILD(tree, 3)) != STAR)
res = validate_import_as_names(CHILD(tree, 3));
return (res);
}
/* import_stmt: import_name | import_from */
static int
validate_import_stmt(node *tree)
{
int nch = NCH(tree);
int res = (validate_ntype(tree, import_stmt)
&& (nch >= 2) && is_even(nch)
&& validate_ntype(CHILD(tree, 0), NAME));
int res = validate_numnodes(tree, 1, "import_stmt");
if (res && (strcmp(STR(CHILD(tree, 0)), "import") == 0)) {
int j;
if (res) {
int ntype = TYPE(CHILD(tree, 0));
res = validate_dotted_as_name(CHILD(tree, 1));
for (j = 2; res && (j < nch); j += 2)
res = (validate_comma(CHILD(tree, j))
&& validate_dotted_as_name(CHILD(tree, j + 1)));
}
else if (res && (res = validate_name(CHILD(tree, 0), "from"))) {
res = ((nch >= 4) && is_even(nch)
&& validate_dotted_name(CHILD(tree, 1))
&& validate_name(CHILD(tree, 2), "import"));
if (nch == 4) {
if (TYPE(CHILD(tree, 3)) == import_as_name)
res = validate_import_as_name(CHILD(tree, 3));
else
res = validate_star(CHILD(tree, 3));
}
if (ntype == import_name || ntype == import_from)
res = validate_node(CHILD(tree, 0));
else {
/* 'from' dotted_name 'import' import_as_name
* (',' import_as_name)+
*/
int j;
res = validate_import_as_name(CHILD(tree, 3));
for (j = 4; res && (j < nch); j += 2)
res = (validate_comma(CHILD(tree, j))
&& validate_import_as_name(CHILD(tree, j + 1)));
res = 0;
err_string("illegal import_stmt child type");
}
}
else
else if (nch == 1) {
res = 0;
PyErr_Format(parser_error,
"Unrecognized child node of import_stmt: %d.",
TYPE(CHILD(tree, 0)));
}
return (res);
}
static int
validate_global_stmt(node *tree)
{
@ -2823,6 +2869,12 @@ validate_node(node *tree)
case import_stmt:
res = validate_import_stmt(tree);
break;
case import_name:
res = validate_import_name(tree);
break;
case import_from:
res = validate_import_from(tree);
break;
case global_stmt:
res = validate_global_stmt(tree);
break;