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Path manipulation (path/getpath/setpath/delpath) and docs.

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del function should fix #37.
This commit is contained in:
Stephen Dolan committed 2012-12-28 16:08:29 +00:00
1 parent f1e23448e7
commit 79c9c418c6
7 files changed
+198 -25
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builtin.c
+30 -12
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@@ -484,6 +484,9 @@ static struct cfunction function_list[] = {
{(cfunction_ptr)f_tonumber, "tonumber", 1},
{(cfunction_ptr)f_tostring, "tostring", 1},
{(cfunction_ptr)f_keys, "keys", 1},
{(cfunction_ptr)jv_setpath, "setpath", 3}, // FIXME typechecking
{(cfunction_ptr)jv_getpath, "getpath", 2},
{(cfunction_ptr)jv_delpath, "delpath", 2},
{(cfunction_ptr)f_equal, "_equal", 3},
{(cfunction_ptr)f_notequal, "_notequal", 3},
{(cfunction_ptr)f_less, "_less", 3},
@@ -508,22 +511,36 @@ static struct cfunction function_list[] = {
static struct symbol_table cbuiltins =
{function_list, sizeof(function_list)/sizeof(function_list[0])};
typedef block (*bytecoded_builtin)();
struct bytecoded_builtin { const char* name; block code; };
static block bind_bytecoded_builtins(block b) {
struct bytecoded_builtin builtin_defs[] = {
{"empty", gen_op_simple(BACKTRACK)},
{"false", gen_const(jv_false())},
{"true", gen_const(jv_true())},
{"null", gen_const(jv_null())},
{"not", gen_condbranch(gen_const(jv_false()),
gen_const(jv_true()))}
};
block builtins = gen_noop();
for (unsigned i=0; i<sizeof(builtin_defs)/sizeof(builtin_defs[0]); i++) {
builtins = BLOCK(builtins, gen_function(builtin_defs[i].name, gen_noop(),
builtin_defs[i].code));
{
struct bytecoded_builtin builtin_defs[] = {
{"empty", gen_op_simple(BACKTRACK)},
{"false", gen_const(jv_false())},
{"true", gen_const(jv_true())},
{"null", gen_const(jv_null())},
{"not", gen_condbranch(gen_const(jv_false()),
gen_const(jv_true()))}
};
for (unsigned i=0; i<sizeof(builtin_defs)/sizeof(builtin_defs[0]); i++) {
builtins = BLOCK(builtins, gen_function(builtin_defs[i].name, gen_noop(),
builtin_defs[i].code));
}
}
{
struct bytecoded_builtin builtin_def_1arg[] = {
{"path", BLOCK(gen_op_simple(DUP),
gen_call("arg", gen_noop()),
gen_op_simple(GETPATH))},
};
for (unsigned i=0; i<sizeof(builtin_def_1arg)/sizeof(builtin_def_1arg[0]); i++) {
builtins = BLOCK(builtins, gen_function(builtin_def_1arg[i].name,
gen_op_block_unbound(CLOSURE_PARAM, "arg"),
builtin_def_1arg[i].code));
}
}
return block_bind(builtins, b, OP_IS_CALL_PSEUDO);
}
@@ -535,6 +552,7 @@ static const char* jq_builtins[] = {
"def unique: group_by(.) | map(.[0]);",
"def max_by(f): _max_by_impl(map([f]));",
"def min_by(f): _min_by_impl(map([f]));",
"def del(f): delpath(path(f));",
};